diff options
-rw-r--r-- | Makefile | 20 | ||||
-rw-r--r-- | TODO | 3 | ||||
-rw-r--r-- | add.c | 55 | ||||
-rw-r--r-- | add.h | 13 | ||||
-rw-r--r-- | bbuffer.c | 77 | ||||
-rw-r--r-- | bbuffer.h | 19 | ||||
-rw-r--r-- | byteswap.c | 57 | ||||
-rw-r--r-- | byteswap.h | 12 | ||||
-rw-r--r-- | common.c | 450 | ||||
-rw-r--r-- | common.h | 37 | ||||
-rw-r--r-- | continued-fraction.c | 69 | ||||
-rw-r--r-- | continued-fraction.h | 6 | ||||
-rw-r--r-- | converter.c | 739 | ||||
-rw-r--r-- | converter.h | 81 | ||||
-rw-r--r-- | driver.h | 13 | ||||
-rw-r--r-- | format.c | 439 | ||||
-rw-r--r-- | format.h | 13 | ||||
-rw-r--r-- | g711.c | 2531 | ||||
-rw-r--r-- | g711.h | 40 | ||||
-rw-r--r-- | interleave.c | 64 | ||||
-rw-r--r-- | interleave.h | 12 | ||||
-rw-r--r-- | macro.h | 13 | ||||
-rw-r--r-- | malloc.c | 2 | ||||
-rw-r--r-- | malloc.h | 5 | ||||
-rw-r--r-- | meta-name-table.gperf | 10 | ||||
-rw-r--r-- | meta-name-table.h | 123 | ||||
-rw-r--r-- | oss.c | 192 | ||||
-rw-r--r-- | resample.c | 172 | ||||
-rw-r--r-- | resample.h | 14 | ||||
-rw-r--r-- | speex/arch.h | 197 | ||||
-rw-r--r-- | speex/resample.c | 1080 | ||||
-rw-r--r-- | speex/speex_resampler.h | 328 | ||||
-rw-r--r-- | sydney.h | 55 | ||||
-rw-r--r-- | test-sine.c | 21 | ||||
-rw-r--r-- | volscale.c | 67 | ||||
-rw-r--r-- | volscale.h | 13 | ||||
-rw-r--r-- | zero.c | 53 | ||||
-rw-r--r-- | zero.h | 13 |
38 files changed, 6713 insertions, 395 deletions
@@ -1,9 +1,21 @@ -CFLAGS=-Wall -O0 -g -W -Wno-unused-parameter +CFLAGS=-Wall -O0 -g -W -Wno-unused-parameter `pkg-config --cflags liboil-0.3` -DRANDOM_PREFIX=sa -DOUTSIDE_SPEEX -D_GNU_SOURCE +LIBS=-lm `pkg-config --libs liboil-0.3` -all: common.o malloc.o test-sine.o oss.o - $(CC) $(CFLAGS) -o $@ $^ +test-sine: common.o malloc.o test-sine.o oss.o bbuffer.o format.o volscale.o byteswap.o continued-fraction.o zero.o add.o speex/resample.o resample.o interleave.o converter.o g711.o + $(CC) $(CFLAGS) -o $@ $^ $(LIBS) *.o: *.h +indent: + indent -brf -kr -nbbo -nbc -ip0 -ppi 4 -cs -nbfde -npsl -br -brs -bap -i4 -bs -cdw -ce -npcs -nbfda -hnl -cli4 -nut -ci8 < oss.c +# astyle --indent=spaces=4 --brackets=attach --indent-switches --max-instatement-indent=40 --pad=oper --unpad=paren --convert-tabs --mode=c < oss.c + clean: - rm -f *.o + rm -f *.o meta-name-table.h + + +meta-name-table.h: meta-name-table.gperf Makefile + gperf -t -N lookup_meta_name -H hash_meta_name -p -C < $< > $@ + +fixme: + find -name '*.c' -exec fgrep -H -A 3 -B 3 -i FIXME \{\} \; @@ -1,5 +1,6 @@ * Replace all "input", "output" with "read", "write" * Vielleicht client_name nicht erzwingen, stattdessen /proc/self/exename nehmen o.ä. * s/sa_device/sa_stream/ -* adjust channel map +* "adjust" channel map +* volume bei codecs? @@ -0,0 +1,55 @@ +#include <liboil/liboil.h> + +#include "macro.h" +#include "add.h" + +static void add_u8(void *dst, size_t dstr, const void *src1, size_t sstr1, const void *src2, size_t sstr2, size_t bytes) { + uint8_t *d = dst; + const uint8_t *s1 = src1, *s2 = src2; + + for (; bytes > 0; bytes--, d += dstr, s1 += sstr1, s2 += sstr2) { + int16_t v = (int16_t) *s1 + (int16_t) *s2 - 0x80; + + if (v > 0xFF) v = 0xFF; + if (v < 0) v = 0; + + *d = (uint8_t) v; + } +} + +static void add_s16(void *dst, size_t dstr, const void *src1, size_t sstr1, const void *src2, size_t sstr2, size_t bytes) { + oil_vectoradd_s_s16(dst, dstr, src1, sstr1, src2, sstr2, bytes/sizeof(int16_t)); +} + +static void add_s32(void *dst, size_t dstr, const void *src1, size_t sstr1, const void *src2, size_t sstr2, size_t bytes) { + int32_t *d = dst; + const int32_t *s1 = src1, *s2 = src2; + + for (; bytes > 0; bytes--, d += dstr/sizeof(int32_t), s1 += sstr1/sizeof(int32_t), s2 += sstr2/sizeof(int32_t)) { + int64_t v = (int64_t) *s1 + (uint64_t) *s2; + + if (v > 0x7FFFFFFF) v = 0x7FFFFFFF; + if (v < -0x80000000) v = -0x80000000; + + *d = (int32_t) v; + } +} + +static void add_f32(void *dst, size_t dstr, const void *src1, size_t sstr1, const void *src2, size_t sstr2, size_t bytes) { + float a = 1, b = 1; + oil_vectoradd_f32(dst, dstr, src1, sstr1, src2, sstr2, bytes/sizeof(int32_t), &a, &b); +} + +add_func_t get_add_func(sa_pcm_format_t f) { + + static const add_func_t funcs[SA_PCM_FORMAT_MAX] = { + [SA_PCM_FORMAT_U8] = add_u8, + [SA_PCM_FORMAT_S16_NE] = add_s16, + [SA_PCM_FORMAT_S32_NE] = add_s32, + [SA_PCM_FORMAT_FLOAT32_NE] = add_f32 + }; + + sa_assert(f < SA_PCM_FORMAT_MAX); + + return funcs[f]; +} @@ -0,0 +1,13 @@ +#ifndef foosydneyaddhfoo +#define foosydneyaddhfoo + +#include <sys/types.h> +#include <inttypes.h> + +#include "sydney.h" + +typedef void (*add_func_t) (void *dst, size_t dstr, const void *src1, size_t sstr1, const void *src2, size_t sstr2, size_t bytes); + +add_func_t get_add_func(sa_pcm_format_t f); + +#endif diff --git a/bbuffer.c b/bbuffer.c new file mode 100644 index 0000000..63aa145 --- /dev/null +++ b/bbuffer.c @@ -0,0 +1,77 @@ +#include <sys/types.h> + +#include "bbuffer.h" +#include "sydney.h" +#include "malloc.h" +#include "macro.h" + +int bbuffer_init(bbuffer_t *b, unsigned nchannels, size_t sample_size) { + sa_assert(b); + sa_assert(nchannels > 0); + sa_assert(sample_size > 0); + + b->nchannels = nchannels; + b->sample_size = sample_size; + + if (!(b->data = sa_new0(void *, nchannels))) { + b->size = NULL; + return SA_ERROR_OOM; + } + + if (!(b->size = sa_new0(size_t, nchannels))) { + sa_free(b->data); + b->data = NULL; + return SA_ERROR_OOM; + } + + return SA_SUCCESS; +} + +void bbuffer_done(bbuffer_t *b) { + unsigned i; + sa_assert(b); + + if (b->data) { + for (i = 0; i < b->nchannels; i++) + sa_free(b->data[i]); + + sa_free(b->data); + } + + sa_free(b->size); + + b->data = NULL; + b->size = NULL; +} + +void* bbuffer_get(bbuffer_t *b, unsigned channel, size_t size, int interleave) { + sa_assert(b); + sa_assert(channel < b->nchannels); + sa_assert(size > 0); + + if (interleave) { + + if (!b->data[0] || size * b->nchannels > b->size[0]) { + sa_free(b->data[0]); + b->size[0] = size * b->nchannels; + + if (!(b->data[0] = sa_malloc(b->size[0]))) + return NULL; + } + + return (uint8_t*) b->data[0] + (b->sample_size * channel); + + } else { + + if (!b->data[channel] || size > b->size[channel]) { + + sa_free(b->data[channel]); + b->size[channel] = size; + + if (!(b->data[channel] = sa_malloc(size))) + return NULL; + } + + return b->data[channel]; + } +} diff --git a/bbuffer.h b/bbuffer.h new file mode 100644 index 0000000..58f5055 --- /dev/null +++ b/bbuffer.h @@ -0,0 +1,19 @@ +#ifndef foosydneybbufferhfoo +#define foosydneybbufferhfoo + +#include <sys/types.h> + +/* Simple bounce buffer management routines */ + +typedef struct bbuffer { + void **data; + size_t *size; + unsigned nchannels; + size_t sample_size; +} bbuffer_t; + +int bbuffer_init(bbuffer_t *b, unsigned nchannels, size_t sample_size); +void bbuffer_done(bbuffer_t *b); +void* bbuffer_get(bbuffer_t *b, unsigned channel, size_t size, int interleave); + +#endif diff --git a/byteswap.c b/byteswap.c new file mode 100644 index 0000000..0c80b8d --- /dev/null +++ b/byteswap.c @@ -0,0 +1,57 @@ +#include <inttypes.h> + +#include "macro.h" +#include "byteswap.h" + +static void byteswap16(void *_dst, size_t dstr, const void *_src, size_t sstr, size_t bytes) { + uint16_t *dst = _dst; + const uint16_t *src = _src; + unsigned n = bytes / sizeof(uint16_t); + + for (; n > 0; n--) { + *dst = (*src >> 8) | (*src << 8); + src += sstr / sizeof(uint16_t); + dst += dstr / sizeof(uint16_t); + } +} + +static void byteswap24(void *_dst, size_t dstr, const void *_src, size_t sstr, size_t bytes) { + uint8_t *dst = _dst; + const uint8_t *src = _src; + unsigned n = bytes / (sizeof(uint8_t)*3); + + for (; n > 0; n--) { + dst[0] = src[2]; + dst[2] = src[0]; + + src += sstr / (sizeof(uint8_t)*3); + dst += dstr / (sizeof(uint8_t)*3); + } +} + +static void byteswap32(void *_dst, size_t dstr, const void *_src, size_t sstr, size_t bytes) { + uint32_t *dst = _dst; + const uint32_t *src = _src; + unsigned n = bytes / sizeof(uint32_t); + + for (; n > 0; n--) { + *dst = (*src << 24) | ((*src & 0xFF00) << 8) | ((*src >> 8) & 0xFF00) | (*src >> 24); + src += sstr / sizeof(uint32_t); + dst += dstr / sizeof(uint32_t); + } +} + +byteswap_func_t get_byteswap_func(sa_pcm_format_t f) { + + static const byteswap_func_t funcs[SA_PCM_FORMAT_MAX] = { + [SA_PCM_FORMAT_S16_RE] = byteswap16, + [SA_PCM_FORMAT_S24_RE] = byteswap24, + [SA_PCM_FORMAT_S32_RE] = byteswap32, + [SA_PCM_FORMAT_FLOAT32_BE] = byteswap32, + }; + + sa_assert(f < SA_PCM_FORMAT_MAX); + + return funcs[f]; +} + diff --git a/byteswap.h b/byteswap.h new file mode 100644 index 0000000..6840412 --- /dev/null +++ b/byteswap.h @@ -0,0 +1,12 @@ +#ifndef foosydneyhbyteswaphfoo +#define foosydneyhbyteswaphfoo + +#include <sys/types.h> + +#include "sydney.h" + +typedef void (*byteswap_func_t) (void *dst, size_t dstr, const void *src, size_t sstr, size_t bytes); + +byteswap_func_t get_byteswap_func(sa_pcm_format_t f); + +#endif @@ -1,40 +1,135 @@ +#include <string.h> +#include <errno.h> +#include <liboil/liboil.h> + #include "sydney.h" #include "macro.h" #include "malloc.h" #include "common.h" #include "driver.h" -int sa_device_create_opaque(sa_device_t **dev, const char *client_name, sa_mode_t mode, const char *codec) { +/* contains code */ +#include "meta-name-table.h" + +static sa_device_t *device_alloc(void) { + sa_device_t *d; + + if (!(d = sa_new0(sa_device_t, 1))) + return NULL; + + /* All fields a carefully chosen in a way that initializing them + * NUL bytes is sufficient */ + + return d; +} + +int sa_device_create_opaque( + sa_device_t **dev, + sa_mode_t mode, + const char *codec) { + + int error; + sa_return_val_if_fail(dev, SA_ERROR_INVALID); - sa_return_val_if_fail(client_name, SA_ERROR_INVALID); sa_return_val_if_fail(mode == SA_MODE_RDONLY || mode == SA_MODE_WRONLY || mode == SA_MODE_RDWR, SA_ERROR_INVALID); sa_return_val_if_fail(codec, SA_ERROR_INVALID); - return device_create_opaque(dev, client_name, mode, codec); + if (!(*dev = device_alloc())) + return SA_ERROR_OOM; + + (*dev)->mode = mode; + + if (!((*dev)->codec = sa_strdup(codec))) { + error = SA_ERROR_OOM; + goto fail; + } + + oil_init(); + + return SA_SUCCESS; + +fail: + sa_device_destroy(*dev); + return error; } -int sa_device_create_pcm(sa_device_t **dev, const char *client_name, sa_mode_t mode, sa_pcm_format_t format, unsigned rate, unsigned channels) { +int sa_device_create_pcm( + sa_device_t **dev, + sa_mode_t mode, + sa_pcm_format_t format, + unsigned rate, + unsigned nchannels) { + + int ret; + sa_return_val_if_fail(dev, SA_ERROR_INVALID); - sa_return_val_if_fail(client_name, SA_ERROR_INVALID); sa_return_val_if_fail(mode == SA_MODE_RDONLY || mode == SA_MODE_WRONLY || mode == SA_MODE_RDWR, SA_ERROR_INVALID); sa_return_val_if_fail(format < SA_PCM_FORMAT_MAX, SA_ERROR_INVALID); sa_return_val_if_fail(rate > 0, SA_ERROR_INVALID); - sa_return_val_if_fail(channels > 0, SA_ERROR_INVALID); + sa_return_val_if_fail(nchannels > 0, SA_ERROR_INVALID); + + if (!(*dev = device_alloc())) + return SA_ERROR_OOM; + + (*dev)->mode = mode; + (*dev)->pcm_attrs.format = format; + (*dev)->pcm_attrs.nchannels = nchannels; + (*dev)->pcm_sample_size = get_pcm_sample_size(format); + (*dev)->pcm_frame_size = (*dev)->pcm_sample_size * nchannels; + + if (nchannels <= 2) { + static const sa_channel_t map_stereo[2] = { SA_CHANNEL_LEFT, SA_CHANNEL_RIGHT }; + static const sa_channel_t map_mono[1] = { SA_CHANNEL_MONO }; - return device_create_pcm(dev, client_name, mode, format, rate, channels); + if ((ret = sa_device_set_channel_map(*dev, nchannels == 2 ? map_stereo : map_mono))) + goto fail; + } + + if ((ret = sa_device_change_rate(*dev, rate))) + goto fail; + + oil_init(); + + return SA_SUCCESS; + +fail: + + sa_device_destroy(*dev); + return ret; } int sa_device_open(sa_device_t *dev) { + int ret; + sa_return_val_if_fail(dev, SA_ERROR_INVALID); sa_return_val_if_fail(dev->state == SA_STATE_INIT, SA_ERROR_STATE); - return device_open(dev); + if ((ret = device_open(dev)) == 0) + dev->state = SA_STATE_STOPPED; + + return ret; } int sa_device_destroy(sa_device_t *dev) { + int ret; + unsigned u; + sa_return_val_if_fail(dev, SA_ERROR_INVALID); - return device_destroy(dev); + ret = device_destroy(dev); + + sa_free(dev->codec); + sa_free(dev->driver); + sa_free(dev->device); + sa_free(dev->pcm_attrs.channel_map); + sa_free(dev->input_volume); + sa_free(dev->output_volume); + + for (u = 0; u < META_NAMES_MAX; u++) + sa_free(dev->meta_data[u]); + + sa_free(dev); + return ret; } int sa_device_set_write_lower_watermark(sa_device_t *dev, size_t size) { @@ -87,15 +182,15 @@ int sa_device_set_channel_map(sa_device_t *dev, const sa_channel_t *map) { sa_return_val_if_fail(dev->state == SA_STATE_INIT, SA_ERROR_STATE); sa_return_val_if_fail(!dev->codec, SA_ERROR_STATE); - for (c = map, n = dev->nchannels; n > 0; c++, n--) + for (c = map, n = dev->pcm_attrs.nchannels; n > 0; c++, n--) if (*c >= SA_CHANNEL_MAX) return SA_ERROR_INVALID; - if (!(m = sa_memdup(map, sizeof(sa_channel_t) * dev->nchannels))) + if (!(m = sa_memdup(map, sizeof(sa_channel_t) * dev->pcm_attrs.nchannels))) return SA_ERROR_OOM; - sa_free(dev->channel_map); - dev->channel_map = m; + sa_free(dev->pcm_attrs.channel_map); + dev->pcm_attrs.channel_map = m; return SA_SUCCESS; } @@ -118,12 +213,12 @@ int sa_device_set_ni(sa_device_t *dev, int enable) { return SA_SUCCESS; } -int sa_device_set_dsr(sa_device_t *dev, int enable) { +int sa_device_set_dynamic_rate(sa_device_t *dev, int enable) { sa_return_val_if_fail(dev, SA_ERROR_INVALID); sa_return_val_if_fail(dev->state == SA_STATE_INIT, SA_ERROR_INVALID); sa_return_val_if_fail(!dev->codec, SA_ERROR_STATE); - dev->dsr_enabled = !!enable; + dev->dynamic_rate_enabled = !!enable; return SA_SUCCESS; } @@ -147,103 +242,90 @@ int sa_device_start_thread(sa_device_t *dev, sa_event_callback_t *callback) { sa_return_val_if_fail(dev, SA_ERROR_INVALID); sa_return_val_if_fail(callback, SA_ERROR_INVALID); sa_return_val_if_fail(dev->state == SA_STATE_INIT, SA_ERROR_STATE); + sa_return_val_if_fail(dev->codec || dev->pcm_attrs.channel_map, SA_ERROR_NO_INIT); return device_start_thread(dev, callback); } int sa_device_change_device(sa_device_t *dev, const char *device_name) { char *d; + int ret; sa_return_val_if_fail(dev, SA_ERROR_INVALID); sa_return_val_if_fail(device_name, SA_ERROR_INVALID); - if (dev->state == SA_STATE_INIT) { - if (!(d = sa_strdup(device_name))) - return SA_ERROR_OOM; + if (!(d = sa_strdup(device_name))) + return SA_ERROR_OOM; + ret = dev->state == SA_STATE_INIT ? SA_SUCCESS : device_change_device(dev, device_name); + + if (ret == SA_SUCCESS) { sa_free(dev->device); dev->device = d; + } else + sa_free(d); - return SA_SUCCESS; - } - - return device_change_device(dev, device_name); + return ret; } -int sa_device_change_input_volume(sa_device_t *dev, int *vol) { +int sa_device_change_input_volume(sa_device_t *dev, const int vol[]) { + int *v, ret; + sa_return_val_if_fail(dev, SA_ERROR_INVALID); sa_return_val_if_fail(vol, SA_ERROR_INVALID); + sa_return_val_if_fail(!dev->codec, SA_ERROR_NOT_SUPPORTED); + sa_return_val_if_fail(dev->mode & SA_MODE_RDONLY, SA_ERROR_STATE); - if (dev->state == SA_STATE_INIT) { - dev->input_volume = *vol; - return SA_SUCCESS; - } + if (!(v = sa_newdup(vol, int, dev->pcm_attrs.nchannels))) + return SA_ERROR_OOM; - return device_change_input_volume(dev, vol); -} + ret = dev->state == SA_STATE_INIT ? SA_SUCCESS : device_change_input_volume(dev, v); -int sa_device_change_output_volume(sa_device_t *dev, int *vol) { - sa_return_val_if_fail(dev, SA_ERROR_INVALID); - sa_return_val_if_fail(vol, SA_ERROR_INVALID); - - if (dev->state == SA_STATE_INIT) { - dev->output_volume = *vol; - return SA_SUCCESS; - } + if (ret == SA_SUCCESS) { + sa_free(dev->input_volume); + dev->input_volume = v; + } else + sa_free(v); - return device_change_output_volume(dev, vol); + return ret; } -int sa_device_change_sampling_rate(sa_device_t *dev, unsigned rate) { - sa_return_val_if_fail(dev, SA_ERROR_INVALID); - sa_return_val_if_fail(rate > 0, SA_ERROR_INVALID); - sa_return_val_if_fail(!dev->codec, SA_ERROR_STATE); - sa_return_val_if_fail(dev->dsr_enabled || dev->state == SA_STATE_INIT, SA_ERROR_STATE); +int sa_device_change_output_volume(sa_device_t *dev, const int vol[]) { + int *v, ret; - if (dev->state == SA_STATE_INIT) { - dev->rate = rate; - return SA_SUCCESS; - } - - return device_change_sampling_rate(dev, rate); -} - -int sa_device_change_client_name(sa_device_t *dev, const char *client_name) { - char *n; - sa_return_val_if_fail(dev, SA_ERROR_INVALID); - sa_return_val_if_fail(client_name, SA_ERROR_INVALID); + sa_return_val_if_fail(vol, SA_ERROR_INVALID); + sa_return_val_if_fail(!dev->codec, SA_ERROR_NOT_SUPPORTED); + sa_return_val_if_fail(dev->mode & SA_MODE_WRONLY, SA_ERROR_STATE); - if (dev->state == SA_STATE_INIT) { - if (!(n = sa_strdup(client_name))) - return SA_ERROR_OOM; + if (!(v = sa_newdup(vol, int, dev->pcm_attrs.nchannels))) + return SA_ERROR_OOM; - sa_free(dev->client_name); - dev->client_name = n; + ret = dev->state == SA_STATE_INIT ? SA_SUCCESS : device_change_output_volume(dev, v); - return SA_SUCCESS; - } - - return device_change_client_name(dev, client_name); + if (ret == SA_SUCCESS) { + sa_free(dev->output_volume); + dev->output_volume = v; + } else + sa_free(v); + + return ret; } -int sa_device_change_stream_name(sa_device_t *dev, const char *stream_name) { - char *n; +int sa_device_change_rate(sa_device_t *dev, unsigned rate) { + int ret; sa_return_val_if_fail(dev, SA_ERROR_INVALID); - sa_return_val_if_fail(stream_name, SA_ERROR_INVALID); - - if (dev->state == SA_STATE_INIT) { - if (!(n = sa_strdup(stream_name))) - return SA_ERROR_OOM; + sa_return_val_if_fail(rate > 0, SA_ERROR_INVALID); + sa_return_val_if_fail(!dev->codec, SA_ERROR_STATE); + sa_return_val_if_fail(dev->dynamic_rate_enabled || dev->state == SA_STATE_INIT, SA_ERROR_STATE); - sa_free(dev->stream_name); - dev->stream_name = n; + ret = dev->state == SA_STATE_INIT ? SA_SUCCESS : device_change_rate(dev, rate); - return SA_SUCCESS; - } + if (ret == SA_SUCCESS) + dev->pcm_attrs.rate = rate; - return device_change_stream_name(dev, stream_name); + return ret; } int sa_device_change_user_data(sa_device_t *dev, void *value) { @@ -287,12 +369,12 @@ int sa_device_get_state(sa_device_t *dev, sa_state_t *state) { return device_get_state(dev, state); } -int sa_device_get_sampling_rate(sa_device_t *dev, unsigned *rate) { +int sa_device_get_rate(sa_device_t *dev, unsigned *rate) { sa_return_val_if_fail(dev, SA_ERROR_INVALID); sa_return_val_if_fail(rate, SA_ERROR_INVALID); sa_return_val_if_fail(!dev->codec, SA_ERROR_STATE); - *rate = dev->rate; + *rate = dev->pcm_attrs.rate; return SA_SUCCESS; } @@ -301,7 +383,7 @@ int sa_device_get_nchannels(sa_device_t *dev, int *nchannels) { sa_return_val_if_fail(nchannels, SA_ERROR_INVALID); sa_return_val_if_fail(!dev->codec, SA_ERROR_STATE); - *nchannels = dev->nchannels; + *nchannels = dev->pcm_attrs.nchannels; return SA_SUCCESS; } @@ -310,7 +392,7 @@ int sa_device_get_pcm_format(sa_device_t *dev, sa_pcm_format_t *pcm_format) { sa_return_val_if_fail(pcm_format, SA_ERROR_INVALID); sa_return_val_if_fail(!dev->codec, SA_ERROR_STATE); - *pcm_format = dev->pcm_format; + *pcm_format = dev->pcm_attrs.format; return SA_SUCCESS; } @@ -371,6 +453,8 @@ int sa_device_pread(sa_device_t *dev, void *data, size_t nbytes, int64_t offset, sa_return_val_if_fail(nbytes > 0, SA_ERROR_INVALID); sa_return_val_if_fail(whence == SA_SEEK_RELATIVE || whence == SA_SEEK_ABSOLUTE || whence == SA_SEEK_RELATIVE_END, SA_ERROR_INVALID); sa_return_val_if_fail(!dev->ni_enabled, SA_ERROR_STATE); + sa_return_val_if_fail(dev->codec || (nbytes % dev->pcm_frame_size) == 0, SA_ERROR_INVALID); + sa_return_val_if_fail(dev->codec || (offset % dev->pcm_frame_size) == 0, SA_ERROR_INVALID); sa_return_val_if_fail(dev->mode & SA_MODE_RDONLY, SA_ERROR_STATE); sa_return_val_if_fail(dev->state == SA_STATE_RUNNING || dev->state == SA_STATE_STOPPED, SA_ERROR_STATE); @@ -383,6 +467,8 @@ int sa_device_pwrite(sa_device_t *dev, const void *data, size_t nbytes, int64_t sa_return_val_if_fail(nbytes > 0, SA_ERROR_INVALID); sa_return_val_if_fail(whence == SA_SEEK_RELATIVE || whence == SA_SEEK_ABSOLUTE || whence == SA_SEEK_RELATIVE_END, SA_ERROR_INVALID); sa_return_val_if_fail(!dev->ni_enabled, SA_ERROR_STATE); + sa_return_val_if_fail(dev->codec || (nbytes % dev->pcm_frame_size) == 0, SA_ERROR_INVALID); + sa_return_val_if_fail(dev->codec || (offset % dev->pcm_frame_size) == 0, SA_ERROR_INVALID); sa_return_val_if_fail(dev->mode & SA_MODE_WRONLY, SA_ERROR_STATE); sa_return_val_if_fail(dev->state == SA_STATE_RUNNING || dev->state == SA_STATE_STOPPED, SA_ERROR_STATE); @@ -393,9 +479,12 @@ int sa_device_pread_ni(sa_device_t *dev, unsigned channel, void *data, size_t nb sa_return_val_if_fail(dev, SA_ERROR_INVALID); sa_return_val_if_fail(data, SA_ERROR_INVALID); sa_return_val_if_fail(nbytes > 0, SA_ERROR_INVALID); + sa_return_val_if_fail(!dev->codec, SA_ERROR_STATE); sa_return_val_if_fail(whence == SA_SEEK_RELATIVE || whence == SA_SEEK_ABSOLUTE || whence == SA_SEEK_RELATIVE_END, SA_ERROR_INVALID); - sa_return_val_if_fail(channel < dev->nchannels, SA_ERROR_INVALID); + sa_return_val_if_fail(channel < dev->pcm_attrs.nchannels, SA_ERROR_INVALID); sa_return_val_if_fail(dev->ni_enabled, SA_ERROR_STATE); + sa_return_val_if_fail((nbytes % dev->pcm_sample_size) == 0, SA_ERROR_INVALID); + sa_return_val_if_fail((offset % dev->pcm_sample_size) == 0, SA_ERROR_INVALID); sa_return_val_if_fail(dev->mode & SA_MODE_RDONLY, SA_ERROR_STATE); sa_return_val_if_fail(dev->state == SA_STATE_RUNNING || dev->state == SA_STATE_STOPPED, SA_ERROR_STATE); @@ -406,9 +495,12 @@ int sa_device_pwrite_ni(sa_device_t *dev, unsigned channel, const void *data, si sa_return_val_if_fail(dev, SA_ERROR_INVALID); sa_return_val_if_fail(data, SA_ERROR_INVALID); sa_return_val_if_fail(nbytes > 0, SA_ERROR_INVALID); + sa_return_val_if_fail(!dev->codec, SA_ERROR_STATE); sa_return_val_if_fail(whence == SA_SEEK_RELATIVE || whence == SA_SEEK_ABSOLUTE || whence == SA_SEEK_RELATIVE_END, SA_ERROR_INVALID); - sa_return_val_if_fail(channel < dev->nchannels, SA_ERROR_INVALID); + sa_return_val_if_fail(channel < dev->pcm_attrs.nchannels, SA_ERROR_INVALID); sa_return_val_if_fail(dev->ni_enabled, SA_ERROR_STATE); + sa_return_val_if_fail((nbytes % dev->pcm_sample_size) == 0, SA_ERROR_INVALID); + sa_return_val_if_fail((offset % dev->pcm_sample_size) == 0, SA_ERROR_INVALID); sa_return_val_if_fail(dev->mode & SA_MODE_WRONLY, SA_ERROR_STATE); sa_return_val_if_fail(dev->state == SA_STATE_RUNNING || dev->state == SA_STATE_STOPPED, SA_ERROR_STATE); @@ -449,75 +541,177 @@ int sa_device_pause(sa_device_t *dev) { int sa_device_drain(sa_device_t *dev) { sa_return_val_if_fail(dev, SA_ERROR_INVALID); + sa_return_val_if_fail(dev->mode & SA_MODE_WRONLY, SA_ERROR_STATE); sa_return_val_if_fail(dev->state == SA_STATE_RUNNING || dev->state == SA_STATE_STOPPED, SA_ERROR_STATE); return device_drain(dev); } -sa_device_t *device_alloc(size_t total) { - sa_device_t *d; +size_t get_pcm_sample_size(sa_pcm_format_t f) { + + switch (f) { + case SA_PCM_FORMAT_U8: + case SA_PCM_FORMAT_ULAW: + case SA_PCM_FORMAT_ALAW: + return 1; + + case SA_PCM_FORMAT_S16_LE: + case SA_PCM_FORMAT_S16_BE: + return 2; + case SA_PCM_FORMAT_S24_LE: + case SA_PCM_FORMAT_S24_BE: + return 3; + + case SA_PCM_FORMAT_S32_LE: + case SA_PCM_FORMAT_S32_BE: + case SA_PCM_FORMAT_FLOAT32_LE: + case SA_PCM_FORMAT_FLOAT32_BE: + return 4; + + case SA_PCM_FORMAT_MAX: + ; + } - sa_assert(total >= sizeof(sa_device_t)); + sa_assert_not_reached(); +} - if (!(d = sa_malloc0(total))) - return NULL; +static int meta_check_png(const void *data, size_t size) { + static const uint8_t png_signature[] = { 0x89, 0x50, 0x4E, 0x47, 0x0D, 0x0A, 0x1A, 0x0A }; + sa_assert(data); - /* All fields a carefully chosen in a way that initializing them - * NUL bytes is sufficient */ + if (size < sizeof(png_signature)) + return 0; - return d; + return memcmp(data, png_signature, 8) == 0; } -void device_free(sa_device_t *d) { - sa_free(d->codec); - sa_free(d->driver); - sa_free(d->device); - sa_free(d->channel_map); - sa_free(d->client_name); - sa_free(d->stream_name); - sa_free(d); +static int meta_check_utf8(const void *data, size_t size) { + int32_t idx; + + oil_utf8_validate(&idx, data, size); + + return (size_t) idx == size; } -int device_alloc_opaque(sa_device_t **dev, size_t total, const char *client_name, sa_mode_t mode, const char *codec) { - int error; +static int meta_check_pid(const void *data, size_t size) { + long int pid; + char *t; + + if (size <= 0) + return 0; + + if (memchr(data, 0, size)) + return 0; - if (!(*dev = device_alloc(total))) - return SA_ERROR_OOM; + if (!(t = sa_strndup(data, size))) + return 0; + + errno = 0; + pid = strtol(t, NULL, 10); + sa_free(t); + + if (errno != 0) + return 0; - (*dev)->mode = mode; + if (pid <= 1) + return 0; - if (!((*dev)->codec = sa_strdup(codec))) { - device_free(*dev); - return SA_ERROR_OOM; - } + return 1; +} - if ((error = sa_device_change_client_name(*dev, client_name))) { - device_free(*dev); - return error; - } +static int meta_check_icon_name(const void *data, size_t size) { + const char *t = data; + + if (size <= 0) + return 0; + + if (memchr(data, 0, size)) + return 0; - return SA_SUCCESS; + if (size == 1 && t[0] == '.') + return 0; + + if (size == 2 && t[0] == '.' && t[1] == '.') + return 0; + + if (memchr(t, '/', size)) + return 0; + + return 1; } -int device_alloc_pcm(sa_device_t **dev, size_t total, const char *client_name, sa_mode_t mode, sa_pcm_format_t format, unsigned rate, unsigned nchannels) { - int error; +static int meta_check_word(const void *data, size_t size) { + const char *t = data; + + for (; size > 0; size --, t++) + if (*t <= 32 || *t >= 127) + return 0; - if (!(*dev = device_alloc(total))) - return SA_ERROR_OOM; + return 1; +} - (*dev)->mode = mode; - (*dev)->pcm_format = format; - (*dev)->nchannels = nchannels; +typedef int (*meta_check_func_t)(const void *data, size_t size); - if ((error = sa_device_change_sampling_rate(*dev, rate))) { - device_free(*dev); - return error; - } +int sa_device_change_meta_data(sa_device_t *dev, const char *name, const void *data, size_t size) { + void *d = NULL; + const struct meta_name *m; + int ret; - if ((error = sa_device_change_client_name(*dev, client_name))) { - device_free(*dev); - return error; - } + static const meta_check_func_t check_table[] = { + meta_check_utf8, + meta_check_pid, + meta_check_word, /* FIXME */ + meta_check_utf8, + meta_check_icon_name, + meta_check_png, + meta_check_word, /* FIXME */ + meta_check_word, /* FIXME */ + }; + + sa_return_val_if_fail(dev, SA_ERROR_INVALID); + sa_return_val_if_fail(name, SA_ERROR_INVALID); + sa_return_val_if_fail(data || size == 0, SA_ERROR_INVALID); - return SA_SUCCESS; + if (!(m = lookup_meta_name(name, strlen(name)))) + return SA_ERROR_NO_META; + + if (!check_table[m->idx](data, size)) + return SA_ERROR_INVALID; + + if (data) + if (!(d = sa_memdup(data, size))) + return SA_ERROR_OOM; + + ret = dev->state == SA_STATE_INIT ? SA_SUCCESS : device_change_meta_data(dev, name, data, size); + + if (ret == SA_SUCCESS) { + sa_free(dev->meta_data[m->idx]); + dev->meta_data[m->idx] = d; + dev->meta_data_size[m->idx] = size; + } + + return ret; +} + + +const char *sa_strerror(int code) { + const char * const error_table[-SA_ERROR_MAX] = { + [-SA_SUCCESS] = "Success", + [-SA_ERROR_NOT_SUPPORTED] = "Operation not supported", + [-SA_ERROR_INVALID] = "Invalid argument", + [-SA_ERROR_STATE] = "Invalid state", + [-SA_ERROR_OOM] = "Out of memory", + [-SA_ERROR_NO_DEVICE] = "No such device", + [-SA_ERROR_NO_DRIVER] = "No such driver", + [-SA_ERROR_NO_CODEC] = "No such codec", + [-SA_ERROR_NO_PCM_FORMAT] = "No such PCM format", + [-SA_ERROR_SYSTEM] = "System error", + [-SA_ERROR_NO_INIT] = "Not initialized", + [-SA_ERROR_NO_META] ="No such meta name" + }; + + sa_assert(code <= 0); + sa_assert(code > SA_ERROR_MAX); + + return error_table[-code]; } @@ -3,38 +3,40 @@ #include "sydney.h" -#define elementsof(x) (sizeof(x)/sizeof((x)[0])) +#define META_NAMES_MAX 8 + +typedef struct pcm_attrs { + sa_pcm_format_t format; + unsigned rate; + unsigned nchannels; + sa_channel_t *channel_map; +} pcm_attrs_t; struct sa_device { sa_mode_t mode; - sa_pcm_format_t pcm_format; - unsigned rate; - unsigned nchannels; + pcm_attrs_t pcm_attrs; + size_t pcm_sample_size; + size_t pcm_frame_size; char *codec; - char *client_name; - char *stream_name; - size_t read_lower_watermark; size_t read_upper_watermark; size_t write_lower_watermark; size_t write_upper_watermark; - sa_channel_t *channel_map; - sa_xrun_mode_t xrun_mode; int ni_enabled; - int dsr_enabled; + int dynamic_rate_enabled; sa_event_callback_t event_callback; char *device; char *driver; - int input_volume; - int output_volume; + int *input_volume; + int *output_volume; void *user_data; @@ -47,12 +49,13 @@ struct sa_device { sa_error_t error; sa_notify_t notify; sa_event_t event; -}; -sa_device_t *device_alloc(size_t total); -void device_free(sa_device_t *d); + void *private; /* driver specific data */ + + void *meta_data[META_NAMES_MAX]; + size_t meta_data_size[META_NAMES_MAX]; +}; -int device_alloc_pcm(sa_device_t **dev, size_t total, const char *client_name, sa_mode_t mode, sa_pcm_format_t format, unsigned rate, unsigned channels); -int device_alloc_opaque(sa_device_t **dev, size_t total, const char *client_name, sa_mode_t mode, const char *codec); +size_t get_pcm_sample_size(sa_pcm_format_t f); #endif diff --git a/continued-fraction.c b/continued-fraction.c new file mode 100644 index 0000000..15253a3 --- /dev/null +++ b/continued-fraction.c @@ -0,0 +1,69 @@ +/* + * Stolen from gnumeric + * + * Original code from Morten Welinder <terra@gnome.org> + */ + +#include <stdio.h> +#include <limits.h> + +#include "continued-fraction.h" + +void continued_fraction(double val, int max_denom, int *res_num, int *res_denom) { + int n1, n2, d1, d2; + double x, y; + + if (val < 0) { + continued_fraction (-val, max_denom, res_num, res_denom); + *res_num = -*res_num; + return; + } + + n1 = 0; d1 = 1; + n2 = 1; d2 = 0; + + x = val; + y = 1; + + do { + int a = (int) (x / y); + double newy = x - a * y; + int n3, d3; + + if ((n2 && a > (INT_MAX - n1) / n2) || + (d2 && a > (INT_MAX - d1) / d2) || + a * d2 + d1 > max_denom) { + *res_num = n2; + *res_denom = d2; + return; + } + + n3 = a * n2 + n1; + d3 = a * d2 + d1; + + x = y; + y = newy; + + n1 = n2; n2 = n3; + d1 = d2; d2 = d3; + } while (y > 1e-10); + + *res_num = n2; + *res_denom = d2; +} + +#if 0 + +int main(int argc, char*argv[]) { + + float value = 3.1417235; + int res_num, res_denom; + + continued_fraction(value, 0xFFFF, &res_num, &res_denom); + + printf("%g ~= %i/%i = %g\n", value, res_num, res_denom, (float) res_num / res_denom); + + return 0; +} + +#endif diff --git a/continued-fraction.h b/continued-fraction.h new file mode 100644 index 0000000..b19ee3c --- /dev/null +++ b/continued-fraction.h @@ -0,0 +1,6 @@ +#ifndef foosydneycontinuedfractionhfoo +#define foosydneycontinuedfractionhfoo + +void continued_fraction(double val, int max_denom, int *res_num, int *res_denom); + +#endif diff --git a/converter.c b/converter.c new file mode 100644 index 0000000..799349c --- /dev/null +++ b/converter.c @@ -0,0 +1,739 @@ +#include <math.h> +#include <string.h> + +#include "speex/speex_resampler.h" + +#include "converter.h" +#include "sydney.h" +#include "macro.h" +#include "common.h" +#include "format.h" +#include "volscale.h" +#include "byteswap.h" +#include "zero.h" +#include "add.h" +#include "bbuffer.h" +#include "continued-fraction.h" +#include "malloc.h" +#include "resample.h" + +/* Steps: byteswap -> convert -> volscale -> remap -> resample -> convert -> byteswap -> interleave */ + +/* Sample formats we know to process natively */ +static int native_pcm_format_process(sa_pcm_format_t f) { + return + f == SA_PCM_FORMAT_U8 || + f == SA_PCM_FORMAT_S16_NE || + f == SA_PCM_FORMAT_S32_NE || + f == SA_PCM_FORMAT_FLOAT32_NE; +} + +/* Sample formats we know to resample natively */ +static int native_pcm_format_resample(sa_pcm_format_t f) { + return + f == SA_PCM_FORMAT_S16_NE || + f == SA_PCM_FORMAT_FLOAT32_NE; +} + +static sa_pcm_format_t byteswap_fix(sa_pcm_format_t f) { + + switch (f) { + case SA_PCM_FORMAT_U8: + case SA_PCM_FORMAT_ULAW: + case SA_PCM_FORMAT_ALAW: + return f; + + case SA_PCM_FORMAT_S16_NE: + case SA_PCM_FORMAT_S16_RE: + return SA_PCM_FORMAT_S16_NE; + + case SA_PCM_FORMAT_S24_NE: + case SA_PCM_FORMAT_S24_RE: + return SA_PCM_FORMAT_S24_NE; + + case SA_PCM_FORMAT_S32_NE: + case SA_PCM_FORMAT_S32_RE: + return SA_PCM_FORMAT_S32_NE; + + case SA_PCM_FORMAT_FLOAT32_NE: + case SA_PCM_FORMAT_FLOAT32_RE: + return SA_PCM_FORMAT_FLOAT32_NE; + + case SA_PCM_FORMAT_MAX: + ; + } + + sa_assert_not_reached(); +} + +static sa_pcm_format_t get_work_format(sa_pcm_format_t a, sa_pcm_format_t b) { + + switch (a) { + case SA_PCM_FORMAT_U8: + case SA_PCM_FORMAT_ULAW: + case SA_PCM_FORMAT_ALAW: + + switch (b) { + case SA_PCM_FORMAT_U8: + return SA_PCM_FORMAT_U8; + + case SA_PCM_FORMAT_ULAW: + case SA_PCM_FORMAT_ALAW: + case SA_PCM_FORMAT_S16_LE: + case SA_PCM_FORMAT_S16_BE: + return SA_PCM_FORMAT_S16_NE; + + case SA_PCM_FORMAT_S24_LE: + case SA_PCM_FORMAT_S24_BE: + case SA_PCM_FORMAT_S32_LE: + case SA_PCM_FORMAT_S32_BE: + return SA_PCM_FORMAT_S32_NE; + + case SA_PCM_FORMAT_FLOAT32_LE: + case SA_PCM_FORMAT_FLOAT32_BE: + return SA_PCM_FORMAT_FLOAT32_NE; + + case SA_PCM_FORMAT_MAX: + ; + } + + break; + + case SA_PCM_FORMAT_S16_LE: + case SA_PCM_FORMAT_S16_BE: + + switch (b) { + case SA_PCM_FORMAT_U8: + case SA_PCM_FORMAT_ULAW: + case SA_PCM_FORMAT_ALAW: + case SA_PCM_FORMAT_S16_LE: + case SA_PCM_FORMAT_S16_BE: + return SA_PCM_FORMAT_S16_NE; + + case SA_PCM_FORMAT_S24_LE: + case SA_PCM_FORMAT_S24_BE: + case SA_PCM_FORMAT_S32_LE: + case SA_PCM_FORMAT_S32_BE: + return SA_PCM_FORMAT_S32_NE; + + case SA_PCM_FORMAT_FLOAT32_LE: + case SA_PCM_FORMAT_FLOAT32_BE: + return SA_PCM_FORMAT_FLOAT32_NE; + + case SA_PCM_FORMAT_MAX: + ; + } + break; + + case SA_PCM_FORMAT_S24_LE: + case SA_PCM_FORMAT_S24_BE: + case SA_PCM_FORMAT_S32_LE: + case SA_PCM_FORMAT_S32_BE: + + switch (b) { + case SA_PCM_FORMAT_U8: + case SA_PCM_FORMAT_ULAW: + case SA_PCM_FORMAT_ALAW: + case SA_PCM_FORMAT_S16_LE: + case SA_PCM_FORMAT_S16_BE: + case SA_PCM_FORMAT_S24_LE: + case SA_PCM_FORMAT_S24_BE: + case SA_PCM_FORMAT_S32_LE: + case SA_PCM_FORMAT_S32_BE: + return SA_PCM_FORMAT_S32_NE; + + case SA_PCM_FORMAT_FLOAT32_LE: + case SA_PCM_FORMAT_FLOAT32_BE: + return SA_PCM_FORMAT_FLOAT32_NE; + + case SA_PCM_FORMAT_MAX: + ; + } + break; + + case SA_PCM_FORMAT_FLOAT32_LE: + case SA_PCM_FORMAT_FLOAT32_BE: + return SA_PCM_FORMAT_FLOAT32_NE; + + case SA_PCM_FORMAT_MAX: + ; + } + + sa_assert_not_reached(); +} + +static sa_pcm_format_t fix_work_format_for_resample(sa_pcm_format_t f) { + + switch (f) { + case SA_PCM_FORMAT_U8: + case SA_PCM_FORMAT_S16_NE: + return SA_PCM_FORMAT_S16_NE; + break; + + case SA_PCM_FORMAT_S32_NE: + case SA_PCM_FORMAT_FLOAT32_NE: + return SA_PCM_FORMAT_FLOAT32_NE; + break; + + default: + ; + } + + sa_assert_not_reached(); +} + +int converter_init( + converter_t *c, + const pcm_attrs_t *from, + const pcm_attrs_t *to, + int dynamic_rate_enabled) { + + unsigned u, t; + int resample_required; + + sa_assert(c); + sa_assert(from); + sa_assert(to); + + memset(c, 0, sizeof(*c)); + + c->from_pcm_format = from->format; + c->to_pcm_format = to->format; + + c->from_rate = from->rate; + c->to_rate = to->rate; + + c->from_nchannels = from->nchannels; + c->to_nchannels = to->nchannels; + + if (!(c->channel_map_table = sa_new(int, (from->nchannels+1) * to->nchannels))) + goto fail; + + for (u = 0; u < to->nchannels; u++) { + unsigned k = 0; + + for (t = 0; t < from->nchannels; t++) { + + if (from->channel_map[u] == to->channel_map[t]) { + if (u != t) + c->remap_required = 1; + + c->channel_map_table[u * (from->nchannels+1) + k++] += t; + } + } + + if (k > 1) + c->sum_required = 1; + + c->channel_map_table[k] = (unsigned) -1; + } + + if (c->from_nchannels != c->to_nchannels) + c->remap_required = 1; + + resample_required = + from->rate != to->rate || + dynamic_rate_enabled; + + c->work_pcm_format = get_work_format(from->format, to->format); + if (resample_required) + c->work_pcm_format = fix_work_format_for_resample(c->work_pcm_format); + + sa_assert(native_pcm_format_process(c->work_pcm_format)); + sa_assert(!resample_required || native_pcm_format_resample(c->work_pcm_format)); + + c->from_sample_size = get_pcm_sample_size(c->from_pcm_format); + c->work_sample_size = get_pcm_sample_size(c->work_pcm_format); + c->to_sample_size = get_pcm_sample_size(c->to_pcm_format); + + /* Get function pointers */ + c->pre_byteswap_func = get_byteswap_func(from->format); + + if (byteswap_fix(from->format) != c->work_pcm_format) { + c->pre_format_func = get_format_func(byteswap_fix(from->format), c->work_pcm_format); + sa_assert(c->pre_format_func); + } else + c->pre_format_func = NULL; + + c->volscale_func = get_volscale_func(c->work_pcm_format); + sa_assert(c->volscale_func); + + c->zero_func = get_zero_func(c->work_pcm_format); + sa_assert(c->zero_func); + + c->add_func = get_add_func(c->work_pcm_format); + sa_assert(c->add_func); + + if (resample_required) { + c->resample_func = get_resample_func(c->work_pcm_format); + sa_assert(c->resample_func); + } else + c->resample_func = NULL; + + if (c->work_pcm_format != byteswap_fix(to->format)) { + c->post_format_func = get_format_func(c->work_pcm_format, byteswap_fix(to->format)); + sa_assert(c->post_format_func); + } else + c->post_format_func = NULL; + + c->post_byteswap_func = get_byteswap_func(to->format); + + c->interleave_func = get_interleave_func(to->format); + sa_assert(c->interleave_func); + + /* Initialize resampler */ + + if (!(c->speex = speex_resampler_init(c->to_nchannels, c->from_rate, c->to_rate, SPEEX_RESAMPLER_QUALITY_DEFAULT, NULL))) + goto fail; + + /* Initialize processing variables */ + + if (!(c->from_process_data = sa_new0(void*, c->from_nchannels))) + goto fail; + + if (!(c->from_stride = sa_new0(size_t, c->from_nchannels))) + goto fail; + + if (!(c->to_process_data = sa_new0(void*, c->to_nchannels))) + goto fail; + + if (!(c->to_stride = sa_new0(size_t, c->to_nchannels))) + goto fail; + + /* Initialize volume stuff */ + if (!(c->volume_factor = sa_new(int32_t, c->from_nchannels))) + goto fail; + + if (!(c->volume_divisor = sa_new(int32_t, c->from_nchannels))) + goto fail; + + c->no_volume = 1; + + /* Initialize bounce buffers */ + + if (bbuffer_init(&c->bb_pre_byteswap, c->from_nchannels, c->from_sample_size) < 0) + goto fail; + if (bbuffer_init(&c->bb_pre_format, c->from_nchannels, c->work_sample_size) < 0) + goto fail; + if (bbuffer_init(&c->bb_volscale, c->from_nchannels, c->work_sample_size) < 0) + goto fail; + if (bbuffer_init(&c->bb_remap, c->to_nchannels, c->work_sample_size) < 0) + goto fail; + if (bbuffer_init(&c->bb_resample, c->to_nchannels, c->work_sample_size) < 0) + goto fail; + if (bbuffer_init(&c->bb_post_format, c->to_nchannels, c->to_sample_size) < 0) + goto fail; + if (bbuffer_init(&c->bb_post_byteswap, c->to_nchannels, c->to_sample_size) < 0) + goto fail; + if (bbuffer_init(&c->bb_interleave, c->to_nchannels, c->to_sample_size) < 0) + goto fail; + if (bbuffer_init(&c->bb_tmp, 1, 1) < 0) + goto fail; + + return 0; + +fail: + converter_done(c); + + return SA_ERROR_OOM; +} + +void converter_done(converter_t *c) { + sa_assert(c); + + sa_free(c->channel_map_table); + + sa_free(c->from_process_data); + sa_free(c->to_process_data); + sa_free(c->from_stride); + sa_free(c->to_stride); + + bbuffer_done(&c->bb_pre_byteswap); + bbuffer_done(&c->bb_pre_format); + bbuffer_done(&c->bb_volscale); + bbuffer_done(&c->bb_remap); + bbuffer_done(&c->bb_resample); + bbuffer_done(&c->bb_post_format); + bbuffer_done(&c->bb_post_byteswap); + bbuffer_done(&c->bb_interleave); + bbuffer_done(&c->bb_tmp); + + if (c->speex) + speex_resampler_destroy(c->speex); + + sa_free(c->zero_buffer); + + sa_free(c->volume_divisor); + sa_free(c->volume_factor); + memset(c, 0, sizeof(*c)); +} + +static void* get_zero_buffer(converter_t *c, size_t size) { + void *b; + + sa_assert(c); + sa_assert(size > 0); + + if (c->zero_buffer && c->zero_size >= size) + return c->zero_buffer; + + sa_free(c->zero_buffer); + + if (!(c->zero_buffer = sa_malloc(size))) + return NULL; + + c->zero_func(b, c->work_sample_size, size); + return c->zero_func; +} + +int converter_go( + converter_t *c, + const void *const src[], const size_t sstr[], int sinterleave, + const void **dst[], size_t *dstr[], int dinterleave, + size_t *size) { + + const size_t* stride; + void** process_data; + int is_bounce; + int interleave; + unsigned i; + + sa_assert(c); + + is_bounce = 0; + stride = sstr; + process_data = (void**) src; + interleave = !!sinterleave; + dinterleave = !!dinterleave; + + if (c->no_volume && + !c->remap_required && + !c->resample_func && + c->from_pcm_format == c->to_pcm_format) { + + /* We can shortcut this, since we don't need to do any real work.*/ + + goto do_interleave; + } + + if (c->pre_byteswap_func) { + size_t k; + + k = dinterleave ? c->from_sample_size*c->from_nchannels : c->from_sample_size; + + for (i = 0; i < c->from_nchannels; i++) { + void *b; + + if (!(b = bbuffer_get(&c->bb_pre_byteswap, i, *size, dinterleave))) + return SA_ERROR_OOM; + + c->pre_byteswap_func(b, k, process_data[i], stride[i], *size); + c->from_process_data[i] = b; + c->from_stride[i] = k; + } + + process_data = c->from_process_data; + stride = c->from_stride; + interleave = dinterleave; + is_bounce = 1; + } + + if (c->pre_format_func) { + + if (is_bounce && c->from_sample_size == c->to_sample_size) { + + /* The data to process is already in a bounce buffer, we + * can do this in-place */ + + for (i = 0; i < c->from_nchannels; i++) + c->pre_format_func(&c->bb_tmp, process_data[i], stride[i], process_data[i], stride[i], *size); + + } else { + size_t k, new_size; + + new_size = *size / c->from_sample_size * c->work_sample_size; + k = dinterleave ? c->work_sample_size*c->from_nchannels : c->work_sample_size; + + for (i = 0; i < c->from_nchannels; i++) { + void *b; + + if (!(b = bbuffer_get(&c->bb_pre_format, i, new_size, dinterleave))) + return SA_ERROR_OOM; + + c->pre_format_func(&c->bb_tmp, b, k, process_data[i], stride[i], *size); + c->from_process_data[i] = b; + c->from_stride[i] = k; + } + + process_data = c->from_process_data; + stride = c->from_stride; + *size = new_size; + interleave = dinterleave; + is_bounce = 1; + } + } + + if (!c->no_volume) { + + sa_assert(c->volscale_func); + + if (is_bounce) { + + /* The data to process is already in a bounce buffer, we + * can do this in-place */ + + for (i = 0; i < c->from_nchannels; i++); + c->volscale_func(process_data[i], stride[i], process_data[i], stride[i], c->volume_factor[i], c->volume_divisor[i], *size); + + } else { + size_t k; + + k = dinterleave ? c->work_sample_size*c->from_nchannels : c->work_sample_size; + + for (i = 0; i < c->from_nchannels; i++) { + void *b; + + if (!(b = bbuffer_get(&c->bb_volscale, i, *size, dinterleave))) + return SA_ERROR_OOM; + + c->volscale_func(b, k, process_data[i], stride[i], c->volume_factor[i], c->volume_divisor[i], *size); + c->from_process_data[i] = b; + c->from_stride[i] = k; + } + + process_data = c->from_process_data; + stride = c->from_stride; + interleave = dinterleave; + is_bounce = 1; + } + } + + if (c->remap_required) { + size_t k; + int need_proper_interleave = 0; + + k = dinterleave ? c->work_sample_size*c->to_nchannels : c->work_sample_size; + + for (i = 0; i < c->to_nchannels; i++) { + void *b; + int *p = &c->channel_map_table[i * (c->from_nchannels+1)]; + + if (p[0] == -1) { + /* We have to write silence to this channel */ + + if (!(b = get_zero_buffer(c, *size))) + return SA_ERROR_OOM; + + c->to_process_data[i] = b; + c->to_stride[i] = c->work_sample_size; + + need_proper_interleave = 1; + } else if (p[1] == -1) { + /* Just one channel, nothing to mix */ + + c->to_process_data[i] = process_data[p[0]]; + c->to_stride[i] = stride[p[0]]; + + need_proper_interleave = 1; + } else { + int j; + + /* We have to mix two or more channels */ + + if (!(b = bbuffer_get(&c->bb_remap, i, *size, dinterleave))) + return SA_ERROR_OOM; + + c->add_func(b, k, process_data[p[0]], stride[p[0]], process_data[p[1]], stride[p[1]], *size); + + for (j = 2; p[j] != -1; j++) + c->add_func(b, k, b, k, process_data[p[j]], stride[p[j]], *size); + + c->to_process_data[i] = b; + c->to_stride[i] = k; + } + } + + process_data = c->to_process_data; + stride = c->to_stride; + interleave = need_proper_interleave ? -1 : dinterleave; + is_bounce = 1; + } + + if (c->resample_func) { + size_t k; + size_t new_size; + + k = dinterleave ? c->work_sample_size*c->to_nchannels : c->work_sample_size; + + new_size = (size_t) (((((uint64_t) *size+c->work_sample_size-1)/c->work_sample_size)*c->to_rate)/c->from_rate+1)*c->work_sample_size; /* FIXME */ + + for (i = 0; i < c->to_nchannels; i++) { + void *b; + + if (!(b = bbuffer_get(&c->bb_resample, i, new_size, dinterleave))) + return SA_ERROR_OOM; + + c->resample_func(c->speex, i, b, k, process_data[i], stride[i], *size, &new_size); + c->to_process_data[i] = b; + c->to_stride[i] = k; + } + + process_data = c->to_process_data; + stride = c->to_stride; + *size = new_size; + interleave = dinterleave; + is_bounce = 1; + } + + if (c->post_format_func) { + + if (is_bounce && c->work_sample_size == c->to_sample_size) { + + /* The data to process is already in a bounce buffer, we + * can do this in-place */ + + for (i = 0; i < c->to_nchannels; i++) + c->post_format_func(&c->bb_tmp, process_data[i], stride[i], process_data[i], stride[i], *size); + + } else { + size_t k, new_size; + + k = dinterleave ? c->to_sample_size*c->to_nchannels : c->to_sample_size; + new_size = *size / c->work_sample_size * c->to_sample_size; + + for (i = 0; i < c->to_nchannels; i++) { + void *b; + + if (!(b = bbuffer_get(&c->bb_post_format, i, new_size, dinterleave))) + return SA_ERROR_OOM; + + c->post_format_func(&c->bb_tmp, b, k, process_data[i], stride[i], *size); + c->to_process_data[i] = b; + c->to_stride[i] = k; + } + + process_data = c->to_process_data; + stride = c->to_stride; + *size = new_size; + interleave = dinterleave; + is_bounce = 1; + } + } + + if (c->post_byteswap_func) { + + if (is_bounce) { + + /* The data to process is already in a bounce buffer, we + * can do this in-place */ + + for (i = 0; i < c->to_nchannels; i++) + c->post_byteswap_func(process_data[i], stride[i], process_data[i], stride[i], *size); + + } else { + size_t k; + + k = dinterleave ? c->to_sample_size*c->to_nchannels : c->to_sample_size; + + for (i = 0; i < c->to_nchannels; i++) { + void *b; + + if (!(b = bbuffer_get(&c->bb_post_byteswap, i, *size, dinterleave))) + return SA_ERROR_OOM; + + c->post_byteswap_func(b, k, process_data[i], stride[i], *size); + + c->to_process_data[i] = b; + c->to_stride[i] = k; + } + + process_data = c->to_process_data; + stride = c->to_stride; + interleave = dinterleave; + is_bounce = 1; + } + } + +do_interleave: + + if (interleave != dinterleave) { + size_t k; + + k = dinterleave ? c->to_sample_size*c->to_nchannels : c->to_sample_size; + + for (i = 0; i < c->to_nchannels; i++) { + void *b; + + if (!(b = bbuffer_get(&c->bb_interleave, i, *size, dinterleave))) + return SA_ERROR_OOM; + + c->interleave_func(b, k, process_data[i], stride[i], *size); + + c->to_process_data[i] = b; + c->to_stride[i] = k; + } + + process_data = c->to_process_data; + stride = c->to_stride; + interleave = dinterleave; + is_bounce = 1; + } + + *dstr = stride; + *dst = process_data; + + return SA_SUCCESS; +} + +void converter_set_volume(converter_t *c, int vol[]) { + unsigned i; + int no_volume = 1; + + sa_assert(c); + + for (i = 0; i < c->from_nchannels; i++) { + int num, denom; + + if (vol[i] == 0) { + c->volume_factor[i] = 1; + c->volume_divisor[1] = 1; + } else { + float f = powf(10.0, vol[i] * 10); + + continued_fraction(f, 0x7FFF, &num, &denom); + + if (num != 1 || denom != 1) + no_volume = 0; + + c->volume_factor[i] = (int32_t) num; + c->volume_divisor[i] = (int32_t) denom; + } + } + +} + +int converter_go_interleaved( + converter_t *c, + const void *const data, + const void **dst[], size_t *dstr[], int dinterleave, + size_t *size) { + + unsigned i; + const uint8_t *d = data; + unsigned stride = c->from_nchannels * c->from_sample_size; + + for (i = 0; i < c->from_nchannels; i++) { + c->from_process_data[i] = (void*) data; + d += c->from_sample_size; + c->from_stride[i] = stride; + } + + return converter_go(c, c->from_process_data, c->from_stride, 1, dst, dstr, dinterleave, size); +} + +void converter_set_ratio(converter_t *c, unsigned rate1, unsigned rate2) { + assert(c); + assert(c->speex); + + speex_resampler_set_rate(c->speex, rate1, rate2); +} diff --git a/converter.h b/converter.h new file mode 100644 index 0000000..5be03dc --- /dev/null +++ b/converter.h @@ -0,0 +1,81 @@ +#ifndef foosydneyconverterhfoo +#define foosydneyconverterhfoo + +#include "sydney.h" +#include "volscale.h" +#include "byteswap.h" +#include "zero.h" +#include "add.h" +#include "bbuffer.h" +#include "resample.h" +#include "format.h" +#include "common.h" +#include "interleave.h" + +typedef struct converter converter_t; + +struct converter { + sa_pcm_format_t from_pcm_format, to_pcm_format; + unsigned from_nchannels, to_nchannels; + unsigned from_rate, to_rate; + + int sum_required; + int remap_required; + + sa_pcm_format_t work_pcm_format; + + size_t from_sample_size, work_sample_size, to_sample_size; + + byteswap_func_t pre_byteswap_func, post_byteswap_func; + format_func_t pre_format_func, post_format_func; + volscale_func_t volscale_func; + zero_func_t zero_func; + add_func_t add_func; + resample_func_t resample_func; + interleave_func_t interleave_func; + + SpeexResamplerState *speex; + + bbuffer_t bb_pre_byteswap, + bb_pre_format, + bb_volscale, + bb_remap, + bb_resample, + bb_post_format, + bb_post_byteswap, + bb_interleave, + bb_tmp; + + void **from_process_data, **to_process_data; + size_t *from_stride, *to_stride; + + int32_t *volume_factor, *volume_divisor; + int no_volume; + + int *channel_map_table; + + void *zero_buffer; + size_t zero_size; +}; + +int converter_init(converter_t *c, const pcm_attrs_t *from, const pcm_attrs_t *to, int dynamic_rate_enabled); +void converter_done(converter_t *c); + +int converter_go( + converter_t *c, + const void *const src[], const size_t sstr[], int sinterleave, + const void **dst[], size_t *dstr[], int dinterleave, + size_t *size); + +int converter_go_interleaved( + converter_t *c, + const void *const data, + const void **dst[], size_t *dstr[], int dinterleave, + size_t *size); + +void converter_set_volume(converter_t *c, int vol[]); + +void converter_set_ratio(converter_t *c, unsigned rate1, unsigned rate2); + + +#endif @@ -3,17 +3,16 @@ #include "sydney.h" -int device_create_opaque(sa_device_t **dev, const char *client_name, sa_mode_t mode, const char *codec); -int device_create_pcm(sa_device_t **dev, const char *client_name, sa_mode_t mode, sa_pcm_format_t format, unsigned rate, unsigned channels); int device_open(sa_device_t *dev); int device_destroy(sa_device_t *dev); int device_start_thread(sa_device_t *dev, sa_event_callback_t *callback); + int device_change_device(sa_device_t *dev, const char *device_name); -int device_change_input_volume(sa_device_t *dev, int *vol); -int device_change_output_volume(sa_device_t *dev, int *vol); -int device_change_sampling_rate(sa_device_t *dev, unsigned rate); -int device_change_client_name(sa_device_t *dev, const char *client_name); -int device_change_stream_name(sa_device_t *dev, const char *stream_name); +int device_change_input_volume(sa_device_t *dev, const int vol[]); +int device_change_output_volume(sa_device_t *dev, const int vol[]); +int device_change_rate(sa_device_t *dev, unsigned rate); +int device_change_meta_data(sa_device_t *dev, const char *name, const void *data, size_t size); + int device_get_state(sa_device_t *dev, sa_state_t *state); int device_get_position(sa_device_t *dev, sa_position_t position, int64_t *pos); int device_pread(sa_device_t *dev, void *data, size_t nbytes, int64_t offset, sa_seek_t whence); diff --git a/format.c b/format.c new file mode 100644 index 0000000..7051fcb --- /dev/null +++ b/format.c @@ -0,0 +1,439 @@ +#include <inttypes.h> +#include <sys/types.h> +#include <sys/param.h> + +#include <liboil/liboil.h> + +#include "format.h" +#include "g711.h" +#include "macro.h" + +/* u8 --> */ + +static int format_u8_to_s16(bbuffer_t *b, void *dst, size_t dstr, const void *src, size_t sstr, size_t bytes) { + int16_t d = -0x80, f = 0x100; + + oil_conv_s16_u8(dst, dstr, src, sstr, bytes); + oil_scalaradd_s16(dst, dstr, dst, dstr, &d, bytes); + oil_scalarmult_s16(dst, dstr, dst, dstr, &f, bytes); + + return SA_SUCCESS; +} + +static int format_u8_to_s32(bbuffer_t *b, void *dst, size_t dstr, const void *src, size_t sstr, size_t bytes) { + int32_t d = -0x80, f = 0x1000000; + + oil_conv_s16_u8(dst, dstr, src, sstr, bytes); + oil_scalaradd_s32(dst, dstr, dst, dstr, &d, bytes); + oil_scalarmult_s32(dst, dstr, dst, dstr, &f, bytes); + + return SA_SUCCESS; +} + +static int format_u8_to_f32(bbuffer_t *b, void *dst, size_t dstr, const void *src, size_t sstr, size_t bytes) { + float d = -0x80, f = 1.0/0x7F; + + oil_conv_f32_u8(dst, dstr, src, sstr, bytes); + oil_scalaradd_f32(dst, dstr, dst, dstr, &d, bytes); + oil_scalarmult_f32(dst, dstr, dst, dstr, &f, bytes); + + return SA_SUCCESS; +} + +/* ulaw --> */ + +static int format_ulaw_to_s16(bbuffer_t *b, void *dst, size_t dstr, const void *src, size_t sstr, size_t bytes) { + int16_t *d = dst; + const uint8_t *s = src; + + for (; bytes > 0; bytes --, d += dstr/sizeof(int16_t), s += sstr) + *d = st_ulaw2linear16(*s); + + return SA_SUCCESS; +} + +static int format_ulaw_to_s32(bbuffer_t *b, void *dst, size_t dstr, const void *src, size_t sstr, size_t bytes) { + int32_t *d = dst; + const uint8_t *s = src; + + for (; bytes > 0; bytes --, d += dstr/sizeof(int32_t), s += sstr) + *d = (int32_t) st_ulaw2linear16(*s) * 0x10000; + + return SA_SUCCESS; +} + +static int format_ulaw_to_f32(bbuffer_t *b, void *dst, size_t dstr, const void *src, size_t sstr, size_t bytes) { + float *d = dst; + const uint8_t *s = src; + + for (; bytes > 0; bytes --, d += dstr/sizeof(float), s += sstr) + *d = st_ulaw2linear16(*s * 1.0F / 0x7FFF); + + return SA_SUCCESS; +} + +/* alaw --> */ + +static int format_alaw_to_s16(bbuffer_t *b, void *dst, size_t dstr, const void *src, size_t sstr, size_t bytes) { + int16_t *d = dst; + const uint8_t *s = src; + + for (; bytes > 0; bytes --, d += dstr/sizeof(int16_t), s += sstr) + *d = st_alaw2linear16(*s); + + return SA_SUCCESS; +} + +static int format_alaw_to_s32(bbuffer_t *b, void *dst, size_t dstr, const void *src, size_t sstr, size_t bytes) { + int32_t *d = dst; + const uint8_t *s = src; + + for (; bytes > 0; bytes --, d += dstr/sizeof(int32_t), s += sstr) + *d = (int32_t) st_alaw2linear16(*(s++)) * 0x10000; + + return SA_SUCCESS; +} + +static int format_alaw_to_f32(bbuffer_t *b, void *dst, size_t dstr, const void *src, size_t sstr, size_t bytes) { + float *d = dst; + const uint8_t *s = src; + + for (; bytes > 0; bytes --, d += dstr/sizeof(float), s += sstr) + *d = st_alaw2linear16(*(s++) * 1.0F / 0x7FFF); + + return SA_SUCCESS; +} + +/* s16 --> */ + +static int format_s16_to_u8(bbuffer_t *b, void *dst, size_t dstr, const void *src, size_t sstr, size_t bytes) { + uint8_t *d = dst; + const int16_t *s = src; + unsigned n = bytes/sizeof(int16_t); + + for (; n > 0; n--, d += dstr, s += sstr/sizeof(int16_t)) + *d = (uint8_t) (*s / 0x100 + 0x80); + + return SA_SUCCESS; +} + +static int format_s16_to_ulaw(bbuffer_t *b, void *dst, size_t dstr, const void *src, size_t sstr, size_t bytes) { + uint8_t *d = dst; + const int16_t *s = src; + unsigned n = bytes/sizeof(int16_t); + + for (; n > 0; n --, d += dstr, s += sstr/sizeof(int16_t)) + *d = st_14linear2ulaw(*s); + + return SA_SUCCESS; +} + +static int format_s16_to_alaw(bbuffer_t *b, void *dst, size_t dstr, const void *src, size_t sstr, size_t bytes) { + uint8_t *d = dst; + const int16_t *s = src; + unsigned n = bytes/sizeof(int16_t); + + for (; n > 0; n --, d += dstr, s += sstr/sizeof(int16_t)) + *d = st_13linear2alaw(*s); + + return SA_SUCCESS; +} + +static int format_s16_to_s32(bbuffer_t *b, void *dst, size_t dstr, const void *src, size_t sstr, size_t bytes) { + int f = 0x10000; + unsigned n = bytes/sizeof(int16_t); + + oil_conv_s32_s16(dst, dstr, src, sstr, n); + oil_scalarmult_s32(dst, dstr, dst, dstr, &f, n); + + return SA_SUCCESS; +} + +static int format_s16_to_f32(bbuffer_t *b, void *dst, size_t dstr, const void *src, size_t sstr, size_t bytes) { + float f = 1.0/0x7ffff; + unsigned n = bytes/sizeof(int16_t); + + oil_conv_f32_s16(dst, dstr, src, sstr, n); + oil_scalarmult_f32(dst, dstr, dst, dstr, &f, n); + + return SA_SUCCESS; +} + +/* s24 --> */ + +static int format_s24_to_s32(bbuffer_t *b, void *dst, size_t dstr, const void *src, size_t sstr, size_t bytes) { + int32_t *d = dst; + const uint8_t *s = src; + unsigned n = bytes/3; + + for (; n > 0; n--, d += dstr/sizeof(int32_t), s += sstr/3) +#if __BYTE_ORDER == __LITTLE_ENDIAN + *d = (int32_t) ((int8_t) s[2]) * 0x1000000 + s[1] * 0x10000 + s[0] * 0x100; +#elif __BYTE_ORDER == __BIG_ENDIAN + *d = (int32_t) ((int8_t) s[0]) * 0x1000000 + s[1] * 0x10000 + s[2] * 0x100; +#else +#error "Unknown byte order" +#endif + + return SA_SUCCESS; +} + +static int format_s24_to_f32(bbuffer_t *b, void *dst, size_t dstr, const void *src, size_t sstr, size_t bytes) { + float *d = dst; + const uint8_t *s = src; + unsigned n = bytes/3; + + for (; n > 0; n--, d += dstr/sizeof(float), s += sstr/3) +#if __BYTE_ORDER == __LITTLE_ENDIAN + *d = ((float) ((int8_t) s[2]) * 0x10000 + s[1] * 0x100 + s[0]) / 0x7fffff; +#elif __BYTE_ORDER == __BIG_ENDIAN + *d = ((float) ((int8_t) s[0]) * 0x10000 + s[1] * 0x100 + s[2]) / 0x7fffff; +#else +#error "Unknown byte order" +#endif + + return SA_SUCCESS; +} + +/* s32 --> */ + +static int format_s32_to_u8(bbuffer_t *b, void *dst, size_t dstr, const void *src, size_t sstr, size_t bytes) { + uint8_t *d = dst; + const int32_t *s = src; + unsigned n = bytes/sizeof(int32_t); + + for (; n > 0; n--, d += dstr, s += sstr/sizeof(int32_t)) + *d = (uint8_t) (*s / 0x1000000 + 0x80); + + return SA_SUCCESS; +} + +static int format_s32_to_ulaw(bbuffer_t *b, void *dst, size_t dstr, const void *src, size_t sstr, size_t bytes) { + uint8_t *d = dst; + const int32_t *s = src; + unsigned n = bytes/sizeof(int32_t); + + for (; n > 0; n--, d += dstr, s += sstr/sizeof(int32_t)) + *d = st_14linear2ulaw(*s / 0x10000); + + return SA_SUCCESS; +} + +static int format_s32_to_alaw(bbuffer_t *b, void *dst, size_t dstr, const void *src, size_t sstr, size_t bytes) { + uint8_t *d = dst; + const int32_t *s = src; + unsigned n = bytes/sizeof(int32_t); + + for (; n > 0; n--, d += dstr, s += sstr/sizeof(int32_t)) + *d = st_13linear2alaw(*s / 0x10000); + + return SA_SUCCESS; +} + +static int format_s32_to_s16(bbuffer_t *b, void *dst, size_t dstr, const void *src, size_t sstr, size_t bytes) { + int16_t *d = dst; + const int32_t *s = src; + unsigned n = bytes/sizeof(int32_t); + + for (; n > 0; n--, d += dstr/sizeof(int16_t), s += sstr/sizeof(int32_t)) + *d = (int16_t) (*s / 0x10000); + + return SA_SUCCESS; +} + +static int format_s32_to_s24(bbuffer_t *b, void *dst, size_t dstr, const void *src, size_t sstr, size_t bytes) { + uint8_t *d = dst; + const int32_t *s = src; + unsigned n = bytes/sizeof(float); + + for (; n > 0; n--, d += dstr/3, s += sstr/sizeof(int32_t)) { + uint32_t j = (uint32_t) (*s) >> 8; + +#if __BYTE_ORDER == __LITTLE_ENDIAN + d[0] = j & 0xFF; + d[1] = (j >> 8) & 0xFF; + d[2] = (j >> 16); +#elif __BYTE_ORDER == __BIG_ENDIAN + d[2] = j & 0xFF; + d[1] = (j >> 8) & 0xFF; + d[0] = (j >> 16); +#else +#error "Unknown byte order" +#endif + } + + return SA_SUCCESS; +} + +static int format_s32_to_f32(bbuffer_t *b, void *dst, size_t dstr, const void *src, size_t sstr, size_t bytes) { + float f = 1.0/0x7fffffff; + unsigned n = bytes/sizeof(int32_t); + + oil_conv_f32_s32(dst, dstr, src, sstr, n); + oil_scalarmult_f32(dst, dstr, dst, dstr, &f, n); + + return SA_SUCCESS; +} + +/* f32 --> */ + +static int format_f32_to_u8(bbuffer_t *b, void *dst, size_t dstr, const void *src, size_t sstr, size_t bytes) { + uint8_t *d = dst; + const float *s = src; + float *buf; + float f = 0x7F, p = 0x80; + unsigned n = bytes/sizeof(float); + + if (!(buf = bbuffer_get(b, 0, bytes, 1))) + return SA_ERROR_OOM; + + oil_scalarmult_f32(buf, sizeof(float), s, sstr, &f, n); + oil_scalaradd_f32(buf, sizeof(float), buf, sizeof(float), &p, n); + oil_clipconv_u8_f32(d, dstr, buf, sizeof(float), n); + + return SA_SUCCESS; +} + +static int format_f32_to_ulaw(bbuffer_t *b, void *dst, size_t dstr, const void *src, size_t sstr, size_t bytes) { + uint8_t *d = dst; + const float *s = src; + unsigned n = bytes/sizeof(float); + + for (; n > 0; n --, d += dstr, s += sstr/sizeof(float)) { + float v = *s * 0x7FFF; + if (v < -0x8000) v = -0x8000; + if (v > -0x7FFF) v = -0x7FFF; + *d = st_13linear2alaw((int16_t) v); + } + + return SA_SUCCESS; +} + +static int format_f32_to_alaw(bbuffer_t *b, void *dst, size_t dstr, const void *src, size_t sstr, size_t bytes) { + uint8_t *d = dst; + const float *s = src; + unsigned n = bytes/sizeof(float); + + for (; n > 0; n --, d += dstr, s += sstr/sizeof(float)) { + float v = *s * 0x7FFF; + if (v < -0x8000) v = -0x8000; + if (v > -0x7FFF) v = -0x7FFF; + *d = st_13linear2alaw((int16_t) v); + } + + return SA_SUCCESS; +} + +static int format_f32_to_s16(bbuffer_t *b, void *dst, size_t dstr, const void *src, size_t sstr, size_t bytes) { + int16_t *d = dst; + const float *s = src; + float *buf; + float f = 0x7FFF; + unsigned n = bytes/sizeof(float); + + if (!(buf = bbuffer_get(b, 0, bytes, 1))) + return SA_ERROR_OOM; + + oil_scalarmult_f32(buf, sizeof(float), s, sstr, &f, n); + oil_clipconv_s16_f32(d, dstr, buf, sizeof(float), n); + + return SA_SUCCESS; +} + +static int format_f32_to_s24(bbuffer_t *b, void *dst, size_t dstr, const void *src, size_t sstr, size_t bytes) { + uint8_t *d = dst; + const float *s = src; + unsigned n = bytes/sizeof(float); + + for (; n > 0; n--, d += dstr/3, s += sstr/sizeof(float)) { + float f = *s / 0x7fffff; + uint32_t j; + + if (f > 0x7fffff) f = 0x7fffff; + if (f < -0x800000) f = -0x800000; + + j = (uint32_t) ((int32_t) f); + +#if __BYTE_ORDER == __LITTLE_ENDIAN + d[0] = j & 0xFF; + d[1] = (j >> 8) & 0xFF; + d[2] = (j >> 16); +#elif __BYTE_ORDER == __BIG_ENDIAN + d[2] = j & 0xFF; + d[1] = (j >> 8) & 0xFF; + d[0] = (j >> 16); +#else +#error "Unknown byte order" +#endif + } + + return SA_SUCCESS; +} + +static int format_f32_to_s32(bbuffer_t *b, void *dst, size_t dstr, const void *src, size_t sstr, size_t bytes) { + int32_t *d = dst; + const float *s = src; + float *buf; + float f = 0x7FFFFFFF; + unsigned n = bytes/sizeof(float); + + if (!(buf = bbuffer_get(b, 0, bytes, 1))) + return SA_ERROR_OOM; + + oil_scalarmult_f32(buf, sizeof(float), s, sstr, &f, n); + oil_clipconv_s32_f32(d, dstr, buf, sizeof(float), n); + + return SA_SUCCESS; +} + +format_func_t get_format_func(sa_pcm_format_t from, sa_pcm_format_t to) { + + /* Rules: we need conversion functions: + * + * 1. from all formats to all "better" work formats + * 2. from all work formats to all "lower" formats + * 3. only for NE types + */ + + static const format_func_t funcs[SA_PCM_FORMAT_MAX * SA_PCM_FORMAT_MAX] = { + [SA_PCM_FORMAT_MAX * SA_PCM_FORMAT_U8 + SA_PCM_FORMAT_S16_NE ] = format_u8_to_s16, /* done */ + [SA_PCM_FORMAT_MAX * SA_PCM_FORMAT_U8 + SA_PCM_FORMAT_S32_NE ] = format_u8_to_s32, /* done */ + [SA_PCM_FORMAT_MAX * SA_PCM_FORMAT_U8 + SA_PCM_FORMAT_FLOAT32_NE] = format_u8_to_f32, /* done */ + + [SA_PCM_FORMAT_MAX * SA_PCM_FORMAT_ULAW + SA_PCM_FORMAT_S16_NE ] = format_ulaw_to_s16, /* done, no liboil */ + [SA_PCM_FORMAT_MAX * SA_PCM_FORMAT_ULAW + SA_PCM_FORMAT_S32_NE ] = format_ulaw_to_s32, /* done, no liboil */ + [SA_PCM_FORMAT_MAX * SA_PCM_FORMAT_ULAW + SA_PCM_FORMAT_FLOAT32_NE] = format_ulaw_to_f32, /* done, no liboil */ + + [SA_PCM_FORMAT_MAX * SA_PCM_FORMAT_ALAW + SA_PCM_FORMAT_S16_NE ] = format_alaw_to_s16, /* done, no liboil */ + [SA_PCM_FORMAT_MAX * SA_PCM_FORMAT_ALAW + SA_PCM_FORMAT_S32_NE ] = format_alaw_to_s32, /* done, no liboil */ + [SA_PCM_FORMAT_MAX * SA_PCM_FORMAT_ALAW + SA_PCM_FORMAT_FLOAT32_NE] = format_alaw_to_f32, /* done, no liboil */ + + [SA_PCM_FORMAT_MAX * SA_PCM_FORMAT_S16_NE + SA_PCM_FORMAT_U8 ] = format_s16_to_u8, /* done, no liboil */ + [SA_PCM_FORMAT_MAX * SA_PCM_FORMAT_S16_NE + SA_PCM_FORMAT_ULAW ] = format_s16_to_ulaw, /* done, no liboil */ + [SA_PCM_FORMAT_MAX * SA_PCM_FORMAT_S16_NE + SA_PCM_FORMAT_ALAW ] = format_s16_to_alaw, /* done, no liboil */ + [SA_PCM_FORMAT_MAX * SA_PCM_FORMAT_S16_NE + SA_PCM_FORMAT_S32_NE ] = format_s16_to_s32, /* done */ + [SA_PCM_FORMAT_MAX * SA_PCM_FORMAT_S16_NE + SA_PCM_FORMAT_FLOAT32_NE] = format_s16_to_f32, /* done */ + + [SA_PCM_FORMAT_MAX * SA_PCM_FORMAT_S24_NE + SA_PCM_FORMAT_S32_NE ] = format_s24_to_s32, /* done, no liboil */ + [SA_PCM_FORMAT_MAX * SA_PCM_FORMAT_S24_NE + SA_PCM_FORMAT_FLOAT32_NE] = format_s24_to_f32, /* done, no liboil */ + + [SA_PCM_FORMAT_MAX * SA_PCM_FORMAT_S32_NE + SA_PCM_FORMAT_U8 ] = format_s32_to_u8, /* done, no liboil */ + [SA_PCM_FORMAT_MAX * SA_PCM_FORMAT_S32_NE + SA_PCM_FORMAT_ULAW ] = format_s32_to_ulaw, /* done, no liboil */ + [SA_PCM_FORMAT_MAX * SA_PCM_FORMAT_S32_NE + SA_PCM_FORMAT_ALAW ] = format_s32_to_alaw, /* done, no liboil */ + [SA_PCM_FORMAT_MAX * SA_PCM_FORMAT_S32_NE + SA_PCM_FORMAT_S16_NE ] = format_s32_to_s16, /* done, no liboil */ + [SA_PCM_FORMAT_MAX * SA_PCM_FORMAT_S32_NE + SA_PCM_FORMAT_S24_NE ] = format_s32_to_s24, /* done, no liboil */ + [SA_PCM_FORMAT_MAX * SA_PCM_FORMAT_S32_NE + SA_PCM_FORMAT_FLOAT32_NE] = format_s32_to_f32, /* done, but suboptimal */ + + [SA_PCM_FORMAT_MAX * SA_PCM_FORMAT_FLOAT32_NE + SA_PCM_FORMAT_U8 ] = format_f32_to_u8, /* done */ + [SA_PCM_FORMAT_MAX * SA_PCM_FORMAT_FLOAT32_NE + SA_PCM_FORMAT_ULAW ] = format_f32_to_ulaw, /* done, no liboil */ + [SA_PCM_FORMAT_MAX * SA_PCM_FORMAT_FLOAT32_NE + SA_PCM_FORMAT_ALAW ] = format_f32_to_alaw, /* done, no liboil */ + [SA_PCM_FORMAT_MAX * SA_PCM_FORMAT_FLOAT32_NE + SA_PCM_FORMAT_S16_NE ] = format_f32_to_s16, /* done */ + [SA_PCM_FORMAT_MAX * SA_PCM_FORMAT_FLOAT32_NE + SA_PCM_FORMAT_S24_NE ] = format_f32_to_s24, /* done, no liboil */ + [SA_PCM_FORMAT_MAX * SA_PCM_FORMAT_FLOAT32_NE + SA_PCM_FORMAT_S32_NE ] = format_f32_to_s32, /* done, but suboptimal */ + }; + + sa_assert(from < SA_PCM_FORMAT_MAX); + sa_assert(to < SA_PCM_FORMAT_MAX); + + return funcs[from * SA_PCM_FORMAT_MAX + to]; +} diff --git a/format.h b/format.h new file mode 100644 index 0000000..2df79ca --- /dev/null +++ b/format.h @@ -0,0 +1,13 @@ +#ifndef foosydneyformathfoo +#define foosydneyformathfoo + +#include <sys/types.h> + +#include "sydney.h" +#include "bbuffer.h" + +typedef int (*format_func_t) (bbuffer_t *b, void *dst, size_t dstr, const void *src, size_t sstr, size_t bytes); + +format_func_t get_format_func(sa_pcm_format_t from, sa_pcm_format_t to); + +#endif @@ -0,0 +1,2531 @@ +/*
+ * This source code is a product of Sun Microsystems, Inc. and is provided
+ * for unrestricted use. Users may copy or modify this source code without
+ * charge.
+ *
+ * SUN SOURCE CODE IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING
+ * THE WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
+ *
+ * Sun source code is provided with no support and without any obligation on
+ * the part of Sun Microsystems, Inc. to assist in its use, correction,
+ * modification or enhancement.
+ *
+ * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
+ * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY THIS SOFTWARE
+ * OR ANY PART THEREOF.
+ *
+ * In no event will Sun Microsystems, Inc. be liable for any lost revenue
+ * or profits or other special, indirect and consequential damages, even if
+ * Sun has been advised of the possibility of such damages.
+ *
+ * Sun Microsystems, Inc.
+ * 2550 Garcia Avenue
+ * Mountain View, California 94043
+ */
+
+/*
+ * g711.c
+ *
+ * u-law, A-law and linear PCM conversions.
+ */
+
+/*
+ * December 30, 1994:
+ * Functions linear2alaw, linear2ulaw have been updated to correctly
+ * convert unquantized 16 bit values.
+ * Tables for direct u- to A-law and A- to u-law conversions have been
+ * corrected.
+ * Borge Lindberg, Center for PersonKommunikation, Aalborg University.
+ * bli@cpk.auc.dk
+ *
+ */
+
+#include "g711.h"
+
+#define SIGN_BIT (0x80) /* Sign bit for a A-law byte. */
+#define QUANT_MASK (0xf) /* Quantization field mask. */
+#define NSEGS (8) /* Number of A-law segments. */
+#define SEG_SHIFT (4) /* Left shift for segment number. */
+#define SEG_MASK (0x70) /* Segment field mask. */
+
+#if !defined(FAST_ALAW_CONVERSION) || !defined(FAST_ULAW_CONVERSION)
+static int16_t seg_aend[8] = {0x1F, 0x3F, 0x7F, 0xFF,
+ 0x1FF, 0x3FF, 0x7FF, 0xFFF};
+static int16_t seg_uend[8] = {0x3F, 0x7F, 0xFF, 0x1FF,
+ 0x3FF, 0x7FF, 0xFFF, 0x1FFF};
+
+static int16_t search(
+ int16_t val,
+ int16_t *table,
+ int size)
+{
+ int i;
+
+ for (i = 0; i < size; i++) {
+ if (val <= *table++)
+ return (i);
+ }
+ return (size);
+}
+#endif /* !FAST_*_CONVERSION */
+
+#ifndef FAST_ALAW_CONVERSION
+/*
+ * linear2alaw() accepts an 13-bit signed integer and encodes it as A-law data
+ * stored in a unsigned char. This function should only be called with
+ * the data shifted such that it only contains information in the lower
+ * 13-bits.
+ *
+ * Linear Input Code Compressed Code
+ * ------------------------ ---------------
+ * 0000000wxyza 000wxyz
+ * 0000001wxyza 001wxyz
+ * 000001wxyzab 010wxyz
+ * 00001wxyzabc 011wxyz
+ * 0001wxyzabcd 100wxyz
+ * 001wxyzabcde 101wxyz
+ * 01wxyzabcdef 110wxyz
+ * 1wxyzabcdefg 111wxyz
+ *
+ * For further information see John C. Bellamy's Digital Telephony, 1982,
+ * John Wiley & Sons, pps 98-111 and 472-476.
+ */
+unsigned char st_13linear2alaw(
+ int16_t pcm_val) /* 2's complement (13-bit range) */
+{
+ int16_t mask;
+ short seg;
+ unsigned char aval;
+
+ /* Have calling software do it since its already doing a shift
+ * from 32-bits down to 16-bits.
+ */
+ /* pcm_val = pcm_val >> 3; */
+
+ /* A-law using even bit inversion */
+ if (pcm_val >= 0) {
+ mask = 0xD5; /* sign (7th) bit = 1 */
+ } else {
+ mask = 0x55; /* sign bit = 0 */
+ pcm_val = -pcm_val - 1;
+ }
+
+ /* Convert the scaled magnitude to segment number. */
+ seg = search(pcm_val, seg_aend, 8);
+
+ /* Combine the sign, segment, and quantization bits. */
+
+ if (seg >= 8) /* out of range, return maximum value. */
+ return (unsigned char) (0x7F ^ mask);
+ else {
+ aval = (unsigned char) seg << SEG_SHIFT;
+ if (seg < 2)
+ aval |= (pcm_val >> 1) & QUANT_MASK;
+ else
+ aval |= (pcm_val >> seg) & QUANT_MASK;
+ return (aval ^ mask);
+ }
+}
+
+/*
+ * alaw2linear() - Convert an A-law value to 16-bit signed linear PCM
+ *
+ */
+int16_t st_alaw2linear16(
+ unsigned char a_val)
+{
+ int16_t t;
+ int16_t seg;
+
+ a_val ^= 0x55;
+
+ t = (a_val & QUANT_MASK) << 4;
+ seg = ((unsigned)a_val & SEG_MASK) >> SEG_SHIFT;
+ switch (seg) {
+ case 0:
+ t += 8;
+ break;
+ case 1:
+ t += 0x108;
+ break;
+ default:
+ t += 0x108;
+ t <<= seg - 1;
+ }
+ return ((a_val & SIGN_BIT) ? t : -t);
+}
+#endif /* !FAST_ALAW_CONVERSION */
+
+#define BIAS (0x84) /* Bias for linear code. */
+#define CLIP 8159
+
+#ifndef FAST_ULAW_CONVERSION
+/*
+ * linear2ulaw() accepts a 14-bit signed integer and encodes it as u-law data
+ * stored in a unsigned char. This function should only be called with
+ * the data shifted such that it only contains information in the lower
+ * 14-bits.
+ *
+ * In order to simplify the encoding process, the original linear magnitude
+ * is biased by adding 33 which shifts the encoding range from (0 - 8158) to
+ * (33 - 8191). The result can be seen in the following encoding table:
+ *
+ * Biased Linear Input Code Compressed Code
+ * ------------------------ ---------------
+ * 00000001wxyza 000wxyz
+ * 0000001wxyzab 001wxyz
+ * 000001wxyzabc 010wxyz
+ * 00001wxyzabcd 011wxyz
+ * 0001wxyzabcde 100wxyz
+ * 001wxyzabcdef 101wxyz
+ * 01wxyzabcdefg 110wxyz
+ * 1wxyzabcdefgh 111wxyz
+ *
+ * Each biased linear code has a leading 1 which identifies the segment
+ * number. The value of the segment number is equal to 7 minus the number
+ * of leading 0's. The quantization interval is directly available as the
+ * four bits wxyz. * The trailing bits (a - h) are ignored.
+ *
+ * Ordinarily the complement of the resulting code word is used for
+ * transmission, and so the code word is complemented before it is returned.
+ *
+ * For further information see John C. Bellamy's Digital Telephony, 1982,
+ * John Wiley & Sons, pps 98-111 and 472-476.
+ */
+unsigned char st_14linear2ulaw(
+ int16_t pcm_val) /* 2's complement (14-bit range) */
+{
+ int16_t mask;
+ int16_t seg;
+ unsigned char uval;
+
+ /* Have calling software do it since its already doing a shift
+ * from 32-bits down to 16-bits.
+ */
+ /* pcm_val = pcm_val >> 2; */
+
+ /* u-law inverts all bits */
+ /* Get the sign and the magnitude of the value. */
+ if (pcm_val < 0) {
+ pcm_val = -pcm_val;
+ mask = 0x7F;
+ } else {
+ mask = 0xFF;
+ }
+ if ( pcm_val > CLIP ) pcm_val = CLIP; /* clip the magnitude */
+ pcm_val += (BIAS >> 2);
+
+ /* Convert the scaled magnitude to segment number. */
+ seg = search(pcm_val, seg_uend, 8);
+
+ /*
+ * Combine the sign, segment, quantization bits;
+ * and complement the code word.
+ */
+ if (seg >= 8) /* out of range, return maximum value. */
+ return (unsigned char) (0x7F ^ mask);
+ else {
+ uval = (unsigned char) (seg << 4) | ((pcm_val >> (seg + 1)) & 0xF);
+ return (uval ^ mask);
+ }
+
+}
+
+/*
+ * ulaw2linear() - Convert a u-law value to 16-bit linear PCM
+ *
+ * First, a biased linear code is derived from the code word. An unbiased
+ * output can then be obtained by subtracting 33 from the biased code.
+ *
+ * Note that this function expects to be passed the complement of the
+ * original code word. This is in keeping with ISDN conventions.
+ */
+int16_t st_ulaw2linear16(
+ unsigned char u_val)
+{
+ int16_t t;
+
+ /* Complement to obtain normal u-law value. */
+ u_val = ~u_val;
+
+ /*
+ * Extract and bias the quantization bits. Then
+ * shift up by the segment number and subtract out the bias.
+ */
+ t = ((u_val & QUANT_MASK) << 3) + BIAS;
+ t <<= ((unsigned)u_val & SEG_MASK) >> SEG_SHIFT;
+
+ return ((u_val & SIGN_BIT) ? (BIAS - t) : (t - BIAS));
+}
+#endif /* !FAST_ULAW_CONVERSION */
+
+#ifdef FAST_ALAW_CONVERSION
+
+int16_t _st_alaw2linear16[256] = {
+ -5504, -5248, -6016, -5760, -4480, -4224, -4992,
+ -4736, -7552, -7296, -8064, -7808, -6528, -6272,
+ -7040, -6784, -2752, -2624, -3008, -2880, -2240,
+ -2112, -2496, -2368, -3776, -3648, -4032, -3904,
+ -3264, -3136, -3520, -3392, -22016, -20992, -24064,
+ -23040, -17920, -16896, -19968, -18944, -30208, -29184,
+ -32256, -31232, -26112, -25088, -28160, -27136, -11008,
+ -10496, -12032, -11520, -8960, -8448, -9984, -9472,
+ -15104, -14592, -16128, -15616, -13056, -12544, -14080,
+ -13568, -344, -328, -376, -360, -280, -264,
+ -312, -296, -472, -456, -504, -488, -408,
+ -392, -440, -424, -88, -72, -120, -104,
+ -24, -8, -56, -40, -216, -200, -248,
+ -232, -152, -136, -184, -168, -1376, -1312,
+ -1504, -1440, -1120, -1056, -1248, -1184, -1888,
+ -1824, -2016, -1952, -1632, -1568, -1760, -1696,
+ -688, -656, -752, -720, -560, -528, -624,
+ -592, -944, -912, -1008, -976, -816, -784,
+ -880, -848, 5504, 5248, 6016, 5760, 4480,
+ 4224, 4992, 4736, 7552, 7296, 8064, 7808,
+ 6528, 6272, 7040, 6784, 2752, 2624, 3008,
+ 2880, 2240, 2112, 2496, 2368, 3776, 3648,
+ 4032, 3904, 3264, 3136, 3520, 3392, 22016,
+ 20992, 24064, 23040, 17920, 16896, 19968, 18944,
+ 30208, 29184, 32256, 31232, 26112, 25088, 28160,
+ 27136, 11008, 10496, 12032, 11520, 8960, 8448,
+ 9984, 9472, 15104, 14592, 16128, 15616, 13056,
+ 12544, 14080, 13568, 344, 328, 376, 360,
+ 280, 264, 312, 296, 472, 456, 504,
+ 488, 408, 392, 440, 424, 88, 72,
+ 120, 104, 24, 8, 56, 40, 216,
+ 200, 248, 232, 152, 136, 184, 168,
+ 1376, 1312, 1504, 1440, 1120, 1056, 1248,
+ 1184, 1888, 1824, 2016, 1952, 1632, 1568,
+ 1760, 1696, 688, 656, 752, 720, 560,
+ 528, 624, 592, 944, 912, 1008, 976,
+ 816, 784, 880, 848
+};
+
+uint8_t _st_13linear2alaw[0x2000] = {
+ 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a,
+ 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a,
+ 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a,
+ 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a,
+ 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a,
+ 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a,
+ 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a,
+ 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a,
+ 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a,
+ 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a,
+ 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2b, 0x2b, 0x2b, 0x2b,
+ 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b,
+ 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b,
+ 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b,
+ 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b,
+ 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b,
+ 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b,
+ 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b,
+ 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b,
+ 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b,
+ 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b,
+ 0x2b, 0x2b, 0x2b, 0x2b, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28,
+ 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28,
+ 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28,
+ 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28,
+ 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28,
+ 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28,
+ 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28,
+ 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28,
+ 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28,
+ 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28,
+ 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28,
+ 0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29,
+ 0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29,
+ 0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29,
+ 0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29,
+ 0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29,
+ 0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29,
+ 0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29,
+ 0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29,
+ 0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29,
+ 0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29,
+ 0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x2e, 0x2e, 0x2e, 0x2e,
+ 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e,
+ 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e,
+ 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e,
+ 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e,
+ 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e,
+ 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e,
+ 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e,
+ 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e,
+ 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e,
+ 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e, 0x2e,
+ 0x2e, 0x2e, 0x2e, 0x2e, 0x2f, 0x2f, 0x2f, 0x2f, 0x2f, 0x2f, 0x2f, 0x2f,
+ 0x2f, 0x2f, 0x2f, 0x2f, 0x2f, 0x2f, 0x2f, 0x2f, 0x2f, 0x2f, 0x2f, 0x2f,
+ 0x2f, 0x2f, 0x2f, 0x2f, 0x2f, 0x2f, 0x2f, 0x2f, 0x2f, 0x2f, 0x2f, 0x2f,
+ 0x2f, 0x2f, 0x2f, 0x2f, 0x2f, 0x2f, 0x2f, 0x2f, 0x2f, 0x2f, 0x2f, 0x2f,
+ 0x2f, 0x2f, 0x2f, 0x2f, 0x2f, 0x2f, 0x2f, 0x2f, 0x2f, 0x2f, 0x2f, 0x2f,
+ 0x2f, 0x2f, 0x2f, 0x2f, 0x2f, 0x2f, 0x2f, 0x2f, 0x2f, 0x2f, 0x2f, 0x2f,
+ 0x2f, 0x2f, 0x2f, 0x2f, 0x2f, 0x2f, 0x2f, 0x2f, 0x2f, 0x2f, 0x2f, 0x2f,
+ 0x2f, 0x2f, 0x2f, 0x2f, 0x2f, 0x2f, 0x2f, 0x2f, 0x2f, 0x2f, 0x2f, 0x2f,
+ 0x2f, 0x2f, 0x2f, 0x2f, 0x2f, 0x2f, 0x2f, 0x2f, 0x2f, 0x2f, 0x2f, 0x2f,
+ 0x2f, 0x2f, 0x2f, 0x2f, 0x2f, 0x2f, 0x2f, 0x2f, 0x2f, 0x2f, 0x2f, 0x2f,
+ 0x2f, 0x2f, 0x2f, 0x2f, 0x2f, 0x2f, 0x2f, 0x2f, 0x2f, 0x2f, 0x2f, 0x2f,
+ 0x2c, 0x2c, 0x2c, 0x2c, 0x2c, 0x2c, 0x2c, 0x2c, 0x2c, 0x2c, 0x2c, 0x2c,
+ 0x2c, 0x2c, 0x2c, 0x2c, 0x2c, 0x2c, 0x2c, 0x2c, 0x2c, 0x2c, 0x2c, 0x2c,
+ 0x2c, 0x2c, 0x2c, 0x2c, 0x2c, 0x2c, 0x2c, 0x2c, 0x2c, 0x2c, 0x2c, 0x2c,
+ 0x2c, 0x2c, 0x2c, 0x2c, 0x2c, 0x2c, 0x2c, 0x2c, 0x2c, 0x2c, 0x2c, 0x2c,
+ 0x2c, 0x2c, 0x2c, 0x2c, 0x2c, 0x2c, 0x2c, 0x2c, 0x2c, 0x2c, 0x2c, 0x2c,
+ 0x2c, 0x2c, 0x2c, 0x2c, 0x2c, 0x2c, 0x2c, 0x2c, 0x2c, 0x2c, 0x2c, 0x2c,
+ 0x2c, 0x2c, 0x2c, 0x2c, 0x2c, 0x2c, 0x2c, 0x2c, 0x2c, 0x2c, 0x2c, 0x2c,
+ 0x2c, 0x2c, 0x2c, 0x2c, 0x2c, 0x2c, 0x2c, 0x2c, 0x2c, 0x2c, 0x2c, 0x2c,
+ 0x2c, 0x2c, 0x2c, 0x2c, 0x2c, 0x2c, 0x2c, 0x2c, 0x2c, 0x2c, 0x2c, 0x2c,
+ 0x2c, 0x2c, 0x2c, 0x2c, 0x2c, 0x2c, 0x2c, 0x2c, 0x2c, 0x2c, 0x2c, 0x2c,
+ 0x2c, 0x2c, 0x2c, 0x2c, 0x2c, 0x2c, 0x2c, 0x2c, 0x2d, 0x2d, 0x2d, 0x2d,
+ 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d,
+ 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d,
+ 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d,
+ 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d,
+ 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d,
+ 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d,
+ 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d,
+ 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d,
+ 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d,
+ 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d,
+ 0x2d, 0x2d, 0x2d, 0x2d, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22,
+ 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22,
+ 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22,
+ 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22,
+ 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22,
+ 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22,
+ 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22,
+ 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22,
+ 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22,
+ 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22,
+ 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22,
+ 0x23, 0x23, 0x23, 0x23, 0x23, 0x23, 0x23, 0x23, 0x23, 0x23, 0x23, 0x23,
+ 0x23, 0x23, 0x23, 0x23, 0x23, 0x23, 0x23, 0x23, 0x23, 0x23, 0x23, 0x23,
+ 0x23, 0x23, 0x23, 0x23, 0x23, 0x23, 0x23, 0x23, 0x23, 0x23, 0x23, 0x23,
+ 0x23, 0x23, 0x23, 0x23, 0x23, 0x23, 0x23, 0x23, 0x23, 0x23, 0x23, 0x23,
+ 0x23, 0x23, 0x23, 0x23, 0x23, 0x23, 0x23, 0x23, 0x23, 0x23, 0x23, 0x23,
+ 0x23, 0x23, 0x23, 0x23, 0x23, 0x23, 0x23, 0x23, 0x23, 0x23, 0x23, 0x23,
+ 0x23, 0x23, 0x23, 0x23, 0x23, 0x23, 0x23, 0x23, 0x23, 0x23, 0x23, 0x23,
+ 0x23, 0x23, 0x23, 0x23, 0x23, 0x23, 0x23, 0x23, 0x23, 0x23, 0x23, 0x23,
+ 0x23, 0x23, 0x23, 0x23, 0x23, 0x23, 0x23, 0x23, 0x23, 0x23, 0x23, 0x23,
+ 0x23, 0x23, 0x23, 0x23, 0x23, 0x23, 0x23, 0x23, 0x23, 0x23, 0x23, 0x23,
+ 0x23, 0x23, 0x23, 0x23, 0x23, 0x23, 0x23, 0x23, 0x20, 0x20, 0x20, 0x20,
+ 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
+ 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
+ 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
+ 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
+ 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
+ 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
+ 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
+ 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
+ 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
+ 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
+ 0x20, 0x20, 0x20, 0x20, 0x21, 0x21, 0x21, 0x21, 0x21, 0x21, 0x21, 0x21,
+ 0x21, 0x21, 0x21, 0x21, 0x21, 0x21, 0x21, 0x21, 0x21, 0x21, 0x21, 0x21,
+ 0x21, 0x21, 0x21, 0x21, 0x21, 0x21, 0x21, 0x21, 0x21, 0x21, 0x21, 0x21,
+ 0x21, 0x21, 0x21, 0x21, 0x21, 0x21, 0x21, 0x21, 0x21, 0x21, 0x21, 0x21,
+ 0x21, 0x21, 0x21, 0x21, 0x21, 0x21, 0x21, 0x21, 0x21, 0x21, 0x21, 0x21,
+ 0x21, 0x21, 0x21, 0x21, 0x21, 0x21, 0x21, 0x21, 0x21, 0x21, 0x21, 0x21,
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+ 0xb4, 0xb4, 0xb4, 0xb4, 0xb4, 0xb4, 0xb4, 0xb4, 0xb4, 0xb4, 0xb4, 0xb4,
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+ 0xb6, 0xb6, 0xb6, 0xb6, 0xb6, 0xb6, 0xb6, 0xb6, 0xb6, 0xb6, 0xb6, 0xb6,
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+ 0xb1, 0xb1, 0xb1, 0xb1, 0xb1, 0xb1, 0xb1, 0xb1, 0xb1, 0xb1, 0xb1, 0xb1,
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+ 0xb1, 0xb1, 0xb1, 0xb1, 0xb1, 0xb1, 0xb1, 0xb1, 0xb1, 0xb1, 0xb1, 0xb1,
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+ 0xb3, 0xb3, 0xb3, 0xb3, 0xb3, 0xb3, 0xb3, 0xb3, 0xb3, 0xb3, 0xb3, 0xb3,
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+ 0xb3, 0xb3, 0xb3, 0xb3, 0xb3, 0xb3, 0xb3, 0xb3, 0xb3, 0xb3, 0xb3, 0xb3,
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+ 0xa0, 0xa0, 0xa0, 0xa0, 0xa0, 0xa0, 0xa0, 0xa0, 0xa0, 0xa0, 0xa0, 0xa0,
+ 0xa0, 0xa0, 0xa0, 0xa0, 0xa0, 0xa0, 0xa0, 0xa0, 0xa0, 0xa0, 0xa0, 0xa0,
+ 0xa3, 0xa3, 0xa3, 0xa3, 0xa3, 0xa3, 0xa3, 0xa3, 0xa3, 0xa3, 0xa3, 0xa3,
+ 0xa3, 0xa3, 0xa3, 0xa3, 0xa3, 0xa3, 0xa3, 0xa3, 0xa3, 0xa3, 0xa3, 0xa3,
+ 0xa3, 0xa3, 0xa3, 0xa3, 0xa3, 0xa3, 0xa3, 0xa3, 0xa3, 0xa3, 0xa3, 0xa3,
+ 0xa3, 0xa3, 0xa3, 0xa3, 0xa3, 0xa3, 0xa3, 0xa3, 0xa3, 0xa3, 0xa3, 0xa3,
+ 0xa3, 0xa3, 0xa3, 0xa3, 0xa3, 0xa3, 0xa3, 0xa3, 0xa3, 0xa3, 0xa3, 0xa3,
+ 0xa3, 0xa3, 0xa3, 0xa3, 0xa3, 0xa3, 0xa3, 0xa3, 0xa3, 0xa3, 0xa3, 0xa3,
+ 0xa3, 0xa3, 0xa3, 0xa3, 0xa3, 0xa3, 0xa3, 0xa3, 0xa3, 0xa3, 0xa3, 0xa3,
+ 0xa3, 0xa3, 0xa3, 0xa3, 0xa3, 0xa3, 0xa3, 0xa3, 0xa3, 0xa3, 0xa3, 0xa3,
+ 0xa3, 0xa3, 0xa3, 0xa3, 0xa3, 0xa3, 0xa3, 0xa3, 0xa3, 0xa3, 0xa3, 0xa3,
+ 0xa3, 0xa3, 0xa3, 0xa3, 0xa3, 0xa3, 0xa3, 0xa3, 0xa3, 0xa3, 0xa3, 0xa3,
+ 0xa3, 0xa3, 0xa3, 0xa3, 0xa3, 0xa3, 0xa3, 0xa3, 0xa2, 0xa2, 0xa2, 0xa2,
+ 0xa2, 0xa2, 0xa2, 0xa2, 0xa2, 0xa2, 0xa2, 0xa2, 0xa2, 0xa2, 0xa2, 0xa2,
+ 0xa2, 0xa2, 0xa2, 0xa2, 0xa2, 0xa2, 0xa2, 0xa2, 0xa2, 0xa2, 0xa2, 0xa2,
+ 0xa2, 0xa2, 0xa2, 0xa2, 0xa2, 0xa2, 0xa2, 0xa2, 0xa2, 0xa2, 0xa2, 0xa2,
+ 0xa2, 0xa2, 0xa2, 0xa2, 0xa2, 0xa2, 0xa2, 0xa2, 0xa2, 0xa2, 0xa2, 0xa2,
+ 0xa2, 0xa2, 0xa2, 0xa2, 0xa2, 0xa2, 0xa2, 0xa2, 0xa2, 0xa2, 0xa2, 0xa2,
+ 0xa2, 0xa2, 0xa2, 0xa2, 0xa2, 0xa2, 0xa2, 0xa2, 0xa2, 0xa2, 0xa2, 0xa2,
+ 0xa2, 0xa2, 0xa2, 0xa2, 0xa2, 0xa2, 0xa2, 0xa2, 0xa2, 0xa2, 0xa2, 0xa2,
+ 0xa2, 0xa2, 0xa2, 0xa2, 0xa2, 0xa2, 0xa2, 0xa2, 0xa2, 0xa2, 0xa2, 0xa2,
+ 0xa2, 0xa2, 0xa2, 0xa2, 0xa2, 0xa2, 0xa2, 0xa2, 0xa2, 0xa2, 0xa2, 0xa2,
+ 0xa2, 0xa2, 0xa2, 0xa2, 0xa2, 0xa2, 0xa2, 0xa2, 0xa2, 0xa2, 0xa2, 0xa2,
+ 0xa2, 0xa2, 0xa2, 0xa2, 0xad, 0xad, 0xad, 0xad, 0xad, 0xad, 0xad, 0xad,
+ 0xad, 0xad, 0xad, 0xad, 0xad, 0xad, 0xad, 0xad, 0xad, 0xad, 0xad, 0xad,
+ 0xad, 0xad, 0xad, 0xad, 0xad, 0xad, 0xad, 0xad, 0xad, 0xad, 0xad, 0xad,
+ 0xad, 0xad, 0xad, 0xad, 0xad, 0xad, 0xad, 0xad, 0xad, 0xad, 0xad, 0xad,
+ 0xad, 0xad, 0xad, 0xad, 0xad, 0xad, 0xad, 0xad, 0xad, 0xad, 0xad, 0xad,
+ 0xad, 0xad, 0xad, 0xad, 0xad, 0xad, 0xad, 0xad, 0xad, 0xad, 0xad, 0xad,
+ 0xad, 0xad, 0xad, 0xad, 0xad, 0xad, 0xad, 0xad, 0xad, 0xad, 0xad, 0xad,
+ 0xad, 0xad, 0xad, 0xad, 0xad, 0xad, 0xad, 0xad, 0xad, 0xad, 0xad, 0xad,
+ 0xad, 0xad, 0xad, 0xad, 0xad, 0xad, 0xad, 0xad, 0xad, 0xad, 0xad, 0xad,
+ 0xad, 0xad, 0xad, 0xad, 0xad, 0xad, 0xad, 0xad, 0xad, 0xad, 0xad, 0xad,
+ 0xad, 0xad, 0xad, 0xad, 0xad, 0xad, 0xad, 0xad, 0xad, 0xad, 0xad, 0xad,
+ 0xac, 0xac, 0xac, 0xac, 0xac, 0xac, 0xac, 0xac, 0xac, 0xac, 0xac, 0xac,
+ 0xac, 0xac, 0xac, 0xac, 0xac, 0xac, 0xac, 0xac, 0xac, 0xac, 0xac, 0xac,
+ 0xac, 0xac, 0xac, 0xac, 0xac, 0xac, 0xac, 0xac, 0xac, 0xac, 0xac, 0xac,
+ 0xac, 0xac, 0xac, 0xac, 0xac, 0xac, 0xac, 0xac, 0xac, 0xac, 0xac, 0xac,
+ 0xac, 0xac, 0xac, 0xac, 0xac, 0xac, 0xac, 0xac, 0xac, 0xac, 0xac, 0xac,
+ 0xac, 0xac, 0xac, 0xac, 0xac, 0xac, 0xac, 0xac, 0xac, 0xac, 0xac, 0xac,
+ 0xac, 0xac, 0xac, 0xac, 0xac, 0xac, 0xac, 0xac, 0xac, 0xac, 0xac, 0xac,
+ 0xac, 0xac, 0xac, 0xac, 0xac, 0xac, 0xac, 0xac, 0xac, 0xac, 0xac, 0xac,
+ 0xac, 0xac, 0xac, 0xac, 0xac, 0xac, 0xac, 0xac, 0xac, 0xac, 0xac, 0xac,
+ 0xac, 0xac, 0xac, 0xac, 0xac, 0xac, 0xac, 0xac, 0xac, 0xac, 0xac, 0xac,
+ 0xac, 0xac, 0xac, 0xac, 0xac, 0xac, 0xac, 0xac, 0xaf, 0xaf, 0xaf, 0xaf,
+ 0xaf, 0xaf, 0xaf, 0xaf, 0xaf, 0xaf, 0xaf, 0xaf, 0xaf, 0xaf, 0xaf, 0xaf,
+ 0xaf, 0xaf, 0xaf, 0xaf, 0xaf, 0xaf, 0xaf, 0xaf, 0xaf, 0xaf, 0xaf, 0xaf,
+ 0xaf, 0xaf, 0xaf, 0xaf, 0xaf, 0xaf, 0xaf, 0xaf, 0xaf, 0xaf, 0xaf, 0xaf,
+ 0xaf, 0xaf, 0xaf, 0xaf, 0xaf, 0xaf, 0xaf, 0xaf, 0xaf, 0xaf, 0xaf, 0xaf,
+ 0xaf, 0xaf, 0xaf, 0xaf, 0xaf, 0xaf, 0xaf, 0xaf, 0xaf, 0xaf, 0xaf, 0xaf,
+ 0xaf, 0xaf, 0xaf, 0xaf, 0xaf, 0xaf, 0xaf, 0xaf, 0xaf, 0xaf, 0xaf, 0xaf,
+ 0xaf, 0xaf, 0xaf, 0xaf, 0xaf, 0xaf, 0xaf, 0xaf, 0xaf, 0xaf, 0xaf, 0xaf,
+ 0xaf, 0xaf, 0xaf, 0xaf, 0xaf, 0xaf, 0xaf, 0xaf, 0xaf, 0xaf, 0xaf, 0xaf,
+ 0xaf, 0xaf, 0xaf, 0xaf, 0xaf, 0xaf, 0xaf, 0xaf, 0xaf, 0xaf, 0xaf, 0xaf,
+ 0xaf, 0xaf, 0xaf, 0xaf, 0xaf, 0xaf, 0xaf, 0xaf, 0xaf, 0xaf, 0xaf, 0xaf,
+ 0xaf, 0xaf, 0xaf, 0xaf, 0xae, 0xae, 0xae, 0xae, 0xae, 0xae, 0xae, 0xae,
+ 0xae, 0xae, 0xae, 0xae, 0xae, 0xae, 0xae, 0xae, 0xae, 0xae, 0xae, 0xae,
+ 0xae, 0xae, 0xae, 0xae, 0xae, 0xae, 0xae, 0xae, 0xae, 0xae, 0xae, 0xae,
+ 0xae, 0xae, 0xae, 0xae, 0xae, 0xae, 0xae, 0xae, 0xae, 0xae, 0xae, 0xae,
+ 0xae, 0xae, 0xae, 0xae, 0xae, 0xae, 0xae, 0xae, 0xae, 0xae, 0xae, 0xae,
+ 0xae, 0xae, 0xae, 0xae, 0xae, 0xae, 0xae, 0xae, 0xae, 0xae, 0xae, 0xae,
+ 0xae, 0xae, 0xae, 0xae, 0xae, 0xae, 0xae, 0xae, 0xae, 0xae, 0xae, 0xae,
+ 0xae, 0xae, 0xae, 0xae, 0xae, 0xae, 0xae, 0xae, 0xae, 0xae, 0xae, 0xae,
+ 0xae, 0xae, 0xae, 0xae, 0xae, 0xae, 0xae, 0xae, 0xae, 0xae, 0xae, 0xae,
+ 0xae, 0xae, 0xae, 0xae, 0xae, 0xae, 0xae, 0xae, 0xae, 0xae, 0xae, 0xae,
+ 0xae, 0xae, 0xae, 0xae, 0xae, 0xae, 0xae, 0xae, 0xae, 0xae, 0xae, 0xae,
+ 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9,
+ 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9,
+ 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9,
+ 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9,
+ 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9,
+ 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9,
+ 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9,
+ 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9,
+ 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9,
+ 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9,
+ 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa8, 0xa8, 0xa8, 0xa8,
+ 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8,
+ 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8,
+ 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8,
+ 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8,
+ 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8,
+ 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8,
+ 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8,
+ 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8,
+ 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8,
+ 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8,
+ 0xa8, 0xa8, 0xa8, 0xa8, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab,
+ 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab,
+ 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab,
+ 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab,
+ 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab,
+ 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab,
+ 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab,
+ 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab,
+ 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab,
+ 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab,
+ 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab,
+ 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
+ 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
+ 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
+ 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
+ 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
+ 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
+ 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
+ 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
+ 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
+ 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
+ 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa
+};
+
+#endif /* FAST_ALAW_CONVERSION */
+
+#ifdef FAST_ULAW_CONVERSION
+
+int16_t _st_ulaw2linear16[256] = {
+ -32124, -31100, -30076, -29052, -28028, -27004, -25980,
+ -24956, -23932, -22908, -21884, -20860, -19836, -18812,
+ -17788, -16764, -15996, -15484, -14972, -14460, -13948,
+ -13436, -12924, -12412, -11900, -11388, -10876, -10364,
+ -9852, -9340, -8828, -8316, -7932, -7676, -7420,
+ -7164, -6908, -6652, -6396, -6140, -5884, -5628,
+ -5372, -5116, -4860, -4604, -4348, -4092, -3900,
+ -3772, -3644, -3516, -3388, -3260, -3132, -3004,
+ -2876, -2748, -2620, -2492, -2364, -2236, -2108,
+ -1980, -1884, -1820, -1756, -1692, -1628, -1564,
+ -1500, -1436, -1372, -1308, -1244, -1180, -1116,
+ -1052, -988, -924, -876, -844, -812, -780,
+ -748, -716, -684, -652, -620, -588, -556,
+ -524, -492, -460, -428, -396, -372, -356,
+ -340, -324, -308, -292, -276, -260, -244,
+ -228, -212, -196, -180, -164, -148, -132,
+ -120, -112, -104, -96, -88, -80, -72,
+ -64, -56, -48, -40, -32, -24, -16,
+ -8, 0, 32124, 31100, 30076, 29052, 28028,
+ 27004, 25980, 24956, 23932, 22908, 21884, 20860,
+ 19836, 18812, 17788, 16764, 15996, 15484, 14972,
+ 14460, 13948, 13436, 12924, 12412, 11900, 11388,
+ 10876, 10364, 9852, 9340, 8828, 8316, 7932,
+ 7676, 7420, 7164, 6908, 6652, 6396, 6140,
+ 5884, 5628, 5372, 5116, 4860, 4604, 4348,
+ 4092, 3900, 3772, 3644, 3516, 3388, 3260,
+ 3132, 3004, 2876, 2748, 2620, 2492, 2364,
+ 2236, 2108, 1980, 1884, 1820, 1756, 1692,
+ 1628, 1564, 1500, 1436, 1372, 1308, 1244,
+ 1180, 1116, 1052, 988, 924, 876, 844,
+ 812, 780, 748, 716, 684, 652, 620,
+ 588, 556, 524, 492, 460, 428, 396,
+ 372, 356, 340, 324, 308, 292, 276,
+ 260, 244, 228, 212, 196, 180, 164,
+ 148, 132, 120, 112, 104, 96, 88,
+ 80, 72, 64, 56, 48, 40, 32,
+ 24, 16, 8, 0
+};
+
+uint8_t _st_14linear2ulaw[0x4000] = {
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
+ 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
+ 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
+ 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
+ 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
+ 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
+ 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
+ 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
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+ 0xca, 0xca, 0xca, 0xc9, 0xc9, 0xc9, 0xc9, 0xc9, 0xc9, 0xc9, 0xc9, 0xc9,
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+ 0xc8, 0xc8, 0xc8, 0xc8, 0xc8, 0xc8, 0xc8, 0xc8, 0xc8, 0xc8, 0xc8, 0xc7,
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+ 0xc7, 0xc7, 0xc7, 0xc6, 0xc6, 0xc6, 0xc6, 0xc6, 0xc6, 0xc6, 0xc6, 0xc6,
+ 0xc6, 0xc6, 0xc6, 0xc6, 0xc6, 0xc6, 0xc6, 0xc5, 0xc5, 0xc5, 0xc5, 0xc5,
+ 0xc5, 0xc5, 0xc5, 0xc5, 0xc5, 0xc5, 0xc5, 0xc5, 0xc5, 0xc5, 0xc5, 0xc4,
+ 0xc4, 0xc4, 0xc4, 0xc4, 0xc4, 0xc4, 0xc4, 0xc4, 0xc4, 0xc4, 0xc4, 0xc4,
+ 0xc4, 0xc4, 0xc4, 0xc3, 0xc3, 0xc3, 0xc3, 0xc3, 0xc3, 0xc3, 0xc3, 0xc3,
+ 0xc3, 0xc3, 0xc3, 0xc3, 0xc3, 0xc3, 0xc3, 0xc2, 0xc2, 0xc2, 0xc2, 0xc2,
+ 0xc2, 0xc2, 0xc2, 0xc2, 0xc2, 0xc2, 0xc2, 0xc2, 0xc2, 0xc2, 0xc2, 0xc1,
+ 0xc1, 0xc1, 0xc1, 0xc1, 0xc1, 0xc1, 0xc1, 0xc1, 0xc1, 0xc1, 0xc1, 0xc1,
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+ 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xbf, 0xbf, 0xbf, 0xbf, 0xbf,
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+ 0xbc, 0xbc, 0xbc, 0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0xbb,
+ 0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0xbb,
+ 0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0xba,
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+ 0xb9, 0xb9, 0xb9, 0xb9, 0xb9, 0xb9, 0xb9, 0xb9, 0xb9, 0xb9, 0xb9, 0xb9,
+ 0xb9, 0xb9, 0xb9, 0xb9, 0xb9, 0xb9, 0xb9, 0xb9, 0xb9, 0xb9, 0xb9, 0xb9,
+ 0xb9, 0xb9, 0xb9, 0xb8, 0xb8, 0xb8, 0xb8, 0xb8, 0xb8, 0xb8, 0xb8, 0xb8,
+ 0xb8, 0xb8, 0xb8, 0xb8, 0xb8, 0xb8, 0xb8, 0xb8, 0xb8, 0xb8, 0xb8, 0xb8,
+ 0xb8, 0xb8, 0xb8, 0xb8, 0xb8, 0xb8, 0xb8, 0xb8, 0xb8, 0xb8, 0xb8, 0xb7,
+ 0xb7, 0xb7, 0xb7, 0xb7, 0xb7, 0xb7, 0xb7, 0xb7, 0xb7, 0xb7, 0xb7, 0xb7,
+ 0xb7, 0xb7, 0xb7, 0xb7, 0xb7, 0xb7, 0xb7, 0xb7, 0xb7, 0xb7, 0xb7, 0xb7,
+ 0xb7, 0xb7, 0xb7, 0xb7, 0xb7, 0xb7, 0xb7, 0xb6, 0xb6, 0xb6, 0xb6, 0xb6,
+ 0xb6, 0xb6, 0xb6, 0xb6, 0xb6, 0xb6, 0xb6, 0xb6, 0xb6, 0xb6, 0xb6, 0xb6,
+ 0xb6, 0xb6, 0xb6, 0xb6, 0xb6, 0xb6, 0xb6, 0xb6, 0xb6, 0xb6, 0xb6, 0xb6,
+ 0xb6, 0xb6, 0xb6, 0xb5, 0xb5, 0xb5, 0xb5, 0xb5, 0xb5, 0xb5, 0xb5, 0xb5,
+ 0xb5, 0xb5, 0xb5, 0xb5, 0xb5, 0xb5, 0xb5, 0xb5, 0xb5, 0xb5, 0xb5, 0xb5,
+ 0xb5, 0xb5, 0xb5, 0xb5, 0xb5, 0xb5, 0xb5, 0xb5, 0xb5, 0xb5, 0xb5, 0xb4,
+ 0xb4, 0xb4, 0xb4, 0xb4, 0xb4, 0xb4, 0xb4, 0xb4, 0xb4, 0xb4, 0xb4, 0xb4,
+ 0xb4, 0xb4, 0xb4, 0xb4, 0xb4, 0xb4, 0xb4, 0xb4, 0xb4, 0xb4, 0xb4, 0xb4,
+ 0xb4, 0xb4, 0xb4, 0xb4, 0xb4, 0xb4, 0xb4, 0xb3, 0xb3, 0xb3, 0xb3, 0xb3,
+ 0xb3, 0xb3, 0xb3, 0xb3, 0xb3, 0xb3, 0xb3, 0xb3, 0xb3, 0xb3, 0xb3, 0xb3,
+ 0xb3, 0xb3, 0xb3, 0xb3, 0xb3, 0xb3, 0xb3, 0xb3, 0xb3, 0xb3, 0xb3, 0xb3,
+ 0xb3, 0xb3, 0xb3, 0xb2, 0xb2, 0xb2, 0xb2, 0xb2, 0xb2, 0xb2, 0xb2, 0xb2,
+ 0xb2, 0xb2, 0xb2, 0xb2, 0xb2, 0xb2, 0xb2, 0xb2, 0xb2, 0xb2, 0xb2, 0xb2,
+ 0xb2, 0xb2, 0xb2, 0xb2, 0xb2, 0xb2, 0xb2, 0xb2, 0xb2, 0xb2, 0xb2, 0xb1,
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+ 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80,
+ 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80,
+ 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80,
+ 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80,
+ 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80,
+ 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80,
+ 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80,
+ 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80,
+ 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80,
+ 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80,
+ 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80,
+ 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80,
+ 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80,
+ 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80,
+ 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80,
+ 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80,
+ 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80,
+ 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80,
+ 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80,
+ 0x80, 0x80, 0x80, 0x80
+};
+
+#endif /* FAST_ULAW_CONVERSION */
+
+/* The following code was used to generate the lookup tables */
+#if 0
+int main()
+{
+ int x, y, find2a = 0;
+
+ y = 0;
+ printf("int16_t _st_alaw2linear16[256] = {\n ");
+ for (x = 0; x < 256; x++)
+ {
+ printf("%8d,", st_alaw2linear16(x));
+ y++;
+ if (y == 7)
+ {
+ y = 0;
+ printf("\n ");
+ }
+ }
+
+ printf("\n};\n\nuint8_t _st_13linear2alaw[0x2000] = {\n ");
+ y = 0;
+ for (x = 0; x < 0x2000; x++)
+ {
+ printf(" 0x%02x,", st_13linear2alaw((-0x1000)+x));
+ y++;
+ if (y == 12)
+ {
+ y = 0;
+ printf("\n ");
+ }
+ }
+
+ printf("\n};\n\nint16_t _st_ulaw2linear16[256] = {\n ");
+ y = 0;
+ for (x = 0; x < 256; x++)
+ {
+ printf("%8d,", st_ulaw2linear16(x));
+ y++;
+ if (y == 7)
+ {
+ y = 0;
+ printf("\n ");
+ }
+ }
+
+ printf("\n};\n\nuint8_t _st_14linear2ulaw[0x4000] = {\n ");
+ y = 0;
+ for (x = 0; x < 0x4000; x++)
+ {
+ printf(" 0x%02x,", st_14linear2ulaw((-0x2000)+x));
+ y++;
+ if (y == 12)
+ {
+ y = 0;
+ printf("\n ");
+ }
+ }
+ printf("\n};\n");
+
+}
+#endif
+
+/* The following is not used by SoX but kept for reference */
+#if 0
+/* copy from CCITT G.711 specifications */
+unsigned char _u2a[128] = { /* u- to A-law conversions */
+ 1, 1, 2, 2, 3, 3, 4, 4,
+ 5, 5, 6, 6, 7, 7, 8, 8,
+ 9, 10, 11, 12, 13, 14, 15, 16,
+ 17, 18, 19, 20, 21, 22, 23, 24,
+ 25, 27, 29, 31, 33, 34, 35, 36,
+ 37, 38, 39, 40, 41, 42, 43, 44,
+ 46, 48, 49, 50, 51, 52, 53, 54,
+ 55, 56, 57, 58, 59, 60, 61, 62,
+ 64, 65, 66, 67, 68, 69, 70, 71,
+ 72, 73, 74, 75, 76, 77, 78, 79,
+/* corrected:
+ 81, 82, 83, 84, 85, 86, 87, 88,
+ should be: */
+ 80, 82, 83, 84, 85, 86, 87, 88,
+ 89, 90, 91, 92, 93, 94, 95, 96,
+ 97, 98, 99, 100, 101, 102, 103, 104,
+ 105, 106, 107, 108, 109, 110, 111, 112,
+ 113, 114, 115, 116, 117, 118, 119, 120,
+ 121, 122, 123, 124, 125, 126, 127, 128};
+
+unsigned char _a2u[128] = { /* A- to u-law conversions */
+ 1, 3, 5, 7, 9, 11, 13, 15,
+ 16, 17, 18, 19, 20, 21, 22, 23,
+ 24, 25, 26, 27, 28, 29, 30, 31,
+ 32, 32, 33, 33, 34, 34, 35, 35,
+ 36, 37, 38, 39, 40, 41, 42, 43,
+ 44, 45, 46, 47, 48, 48, 49, 49,
+ 50, 51, 52, 53, 54, 55, 56, 57,
+ 58, 59, 60, 61, 62, 63, 64, 64,
+ 65, 66, 67, 68, 69, 70, 71, 72,
+/* corrected:
+ 73, 74, 75, 76, 77, 78, 79, 79,
+ should be: */
+ 73, 74, 75, 76, 77, 78, 79, 80,
+
+ 80, 81, 82, 83, 84, 85, 86, 87,
+ 88, 89, 90, 91, 92, 93, 94, 95,
+ 96, 97, 98, 99, 100, 101, 102, 103,
+ 104, 105, 106, 107, 108, 109, 110, 111,
+ 112, 113, 114, 115, 116, 117, 118, 119,
+ 120, 121, 122, 123, 124, 125, 126, 127};
+
+/* A-law to u-law conversion */
+unsigned char st_alaw2ulaw(
+ unsigned char aval)
+{
+ aval &= 0xff;
+ return (unsigned char) ((aval & 0x80) ? (0xFF ^ _a2u[aval ^ 0xD5]) :
+ (0x7F ^ _a2u[aval ^ 0x55]));
+}
+
+/* u-law to A-law conversion */
+unsigned char st_ulaw2alaw(
+ unsigned char uval)
+{
+ uval &= 0xff;
+ return (unsigned char) ((uval & 0x80) ? (0xD5 ^ (_u2a[0xFF ^ uval] - 1)) :
+ (unsigned char) (0x55 ^ (_u2a[0x7F ^ uval] - 1)));
+}
+#endif
@@ -0,0 +1,40 @@ +#ifndef foosydneyg711hfoo +#define foosydneyg711hfoo + +/* g711.h - include for G711 u-law and a-law conversion routines +** +** Copyright (C) 2001 Chris Bagwell +** +** Permission to use, copy, modify, and distribute this software and its +** documentation for any purpose and without fee is hereby granted, provided +** that the above copyright notice appear in all copies and that both that +** copyright notice and this permission notice appear in supporting +** documentation. This software is provided "as is" without express or +** implied warranty. +*/ + +/** Copied from sox */ + +#include <inttypes.h> + +#ifdef FAST_ALAW_CONVERSION +extern uint8_t _st_13linear2alaw[0x2000]; +extern int16_t _st_alaw2linear16[256]; +#define st_13linear2alaw(sw) (_st_13linear2alaw[(sw + 0x1000)]) +#define st_alaw2linear16(uc) (_st_alaw2linear16[uc]) +#else +unsigned char st_13linear2alaw(int16_t pcm_val); +int16_t st_alaw2linear16(unsigned char); +#endif + +#ifdef FAST_ULAW_CONVERSION +extern uint8_t _st_14linear2ulaw[0x4000]; +extern int16_t _st_ulaw2linear16[256]; +#define st_14linear2ulaw(sw) (_st_14linear2ulaw[(sw + 0x2000)]) +#define st_ulaw2linear16(uc) (_st_ulaw2linear16[uc]) +#else +unsigned char st_14linear2ulaw(int16_t pcm_val); +int16_t st_ulaw2linear16(unsigned char); +#endif + +#endif diff --git a/interleave.c b/interleave.c new file mode 100644 index 0000000..e503671 --- /dev/null +++ b/interleave.c @@ -0,0 +1,64 @@ +#include <inttypes.h> + +#include "macro.h" +#include "interleave.h" + +static void interleave8(void *_dst, size_t dstr, const void *_src, size_t sstr, size_t bytes) { + uint8_t *dst = _dst; + const uint8_t *src = _src; + + for (; bytes > 0; bytes--, src += sstr, dst += dstr) + *dst = *src; +} + +static void interleave16(void *_dst, size_t dstr, const void *_src, size_t sstr, size_t bytes) { + uint16_t *dst = _dst; + const uint16_t *src = _src; + unsigned n = bytes / sizeof(uint16_t); + + for (; n > 0; n--, src += sstr/sizeof(uint16_t), dst += dstr/sizeof(uint16_t)) + *dst = *src; +} + +static void interleave24(void *_dst, size_t dstr, const void *_src, size_t sstr, size_t bytes) { + uint8_t *dst = _dst; + const uint8_t *src = _src; + unsigned n = bytes / 3; + + for (; n > 0; n--, src += sstr/3, dst += dstr/3) { + dst[0] = src[0]; + dst[1] = src[1]; + dst[2] = src[2]; + } +} + +static void interleave32(void *_dst, size_t dstr, const void *_src, size_t sstr, size_t bytes) { + uint32_t *dst = _dst; + const uint32_t *src = _src; + unsigned n = bytes / sizeof(uint32_t); + + for (; n > 0; n--, src += sstr/sizeof(uint32_t), dst += dstr/sizeof(uint32_t)) + *dst = *src; +} + +interleave_func_t get_interleave_func(sa_pcm_format_t f) { + + static const interleave_func_t funcs[SA_PCM_FORMAT_MAX] = { + [SA_PCM_FORMAT_U8] = interleave8, + [SA_PCM_FORMAT_ULAW] = interleave8, + [SA_PCM_FORMAT_ALAW] = interleave8, + [SA_PCM_FORMAT_S16_LE] = interleave16, + [SA_PCM_FORMAT_S16_BE] = interleave16, + [SA_PCM_FORMAT_S24_LE] = interleave24, + [SA_PCM_FORMAT_S24_BE] = interleave24, + [SA_PCM_FORMAT_S32_LE] = interleave32, + [SA_PCM_FORMAT_S32_BE] = interleave32, + [SA_PCM_FORMAT_FLOAT32_LE] = interleave32, + [SA_PCM_FORMAT_FLOAT32_BE] = interleave32, + }; + + sa_assert(f < SA_PCM_FORMAT_MAX); + + return funcs[f]; +} + diff --git a/interleave.h b/interleave.h new file mode 100644 index 0000000..10b6de1 --- /dev/null +++ b/interleave.h @@ -0,0 +1,12 @@ +#ifndef foosydneyhinterleavehfoo +#define foosydneyhinterleavehfoo + +#include <sys/types.h> + +#include "sydney.h" + +typedef void (*interleave_func_t) (void *dst, size_t dstr, const void *src, size_t sstr, size_t bytes); + +interleave_func_t get_interleave_func(sa_pcm_format_t f); + +#endif @@ -13,7 +13,7 @@ #define sa_return_if_fail(expr) \ do { \ if (!(expr)) { \ - fprintf(stderr, PRETTY_FUNCTION ": Assertion <" #expr "> failed.\n"); \ + fprintf(stderr, "%s: Assertion <%s> failed.\n", PRETTY_FUNCTION, #expr ); \ return; \ } \ } while(0) @@ -21,7 +21,7 @@ #define sa_return_val_if_fail(expr, val) \ do { \ if (!(expr)) { \ - fprintf(stderr, "%s: Assertion <" #expr "> failed.\n", PRETTY_FUNCTION ); \ + fprintf(stderr, "%s: Assertion <%s> failed.\n", PRETTY_FUNCTION, #expr ); \ return (val); \ } \ } while(0) @@ -30,4 +30,13 @@ #define sa_assert_not_reached() sa_assert(!"Should not be reached.") +#define elementsof(x) (sizeof(x)/sizeof((x)[0])) + +#ifndef MAX +#define MAX(a, b) ((a) > (b) ? (a) : (b)) +#endif +#ifndef MIN +#define MIN(a, b) ((a) < (b) ? (a) : (b)) +#endif + #endif @@ -5,7 +5,7 @@ void* sa_memdup(const void* p, size_t size) { void *r; - if (!(r = malloc(size))) + if (!(r = sa_malloc(size))) return NULL; memcpy(r, p, size); @@ -8,9 +8,12 @@ #define sa_free free #define sa_malloc0(size) calloc(1, (size)) #define sa_strdup strdup +#define sa_strndup strndup void* sa_memdup(const void* p, size_t size); -#define sa_new(t, n) ((t*) sa_malloc(sizeof(t)*n)) +#define sa_new(t, n) ((t*) sa_malloc(sizeof(t)*(n))) +#define sa_new0(t, n) ((t*) sa_malloc0(sizeof(t)*(n))) +#define sa_newdup(p, t, n) ((t*) sa_memdup(p, sizeof(t)*(n))) #endif diff --git a/meta-name-table.gperf b/meta-name-table.gperf new file mode 100644 index 0000000..78fe64c --- /dev/null +++ b/meta-name-table.gperf @@ -0,0 +1,10 @@ +struct meta_name { const char* name; int idx; }; +%% +sydney.client-name, 0 +sydney.process-id, 1 +sydney.language, 2 +sydney.stream-name, 3 +sydney.icon-name, 4 +sydney.icon-png, 5 +sydney.role, 6 +sydney.xid, 7 diff --git a/meta-name-table.h b/meta-name-table.h new file mode 100644 index 0000000..86e515b --- /dev/null +++ b/meta-name-table.h @@ -0,0 +1,123 @@ +/* C code produced by gperf version 3.0.2 */ +/* Command-line: gperf -t -N lookup_meta_name -H hash_meta_name -p -C */ +/* Computed positions: -k'8' */ + +#if !((' ' == 32) && ('!' == 33) && ('"' == 34) && ('#' == 35) \ + && ('%' == 37) && ('&' == 38) && ('\'' == 39) && ('(' == 40) \ + && (')' == 41) && ('*' == 42) && ('+' == 43) && (',' == 44) \ + && ('-' == 45) && ('.' == 46) && ('/' == 47) && ('0' == 48) \ + && ('1' == 49) && ('2' == 50) && ('3' == 51) && ('4' == 52) \ + && ('5' == 53) && ('6' == 54) && ('7' == 55) && ('8' == 56) \ + && ('9' == 57) && (':' == 58) && (';' == 59) && ('<' == 60) \ + && ('=' == 61) && ('>' == 62) && ('?' == 63) && ('A' == 65) \ + && ('B' == 66) && ('C' == 67) && ('D' == 68) && ('E' == 69) \ + && ('F' == 70) && ('G' == 71) && ('H' == 72) && ('I' == 73) \ + && ('J' == 74) && ('K' == 75) && ('L' == 76) && ('M' == 77) \ + && ('N' == 78) && ('O' == 79) && ('P' == 80) && ('Q' == 81) \ + && ('R' == 82) && ('S' == 83) && ('T' == 84) && ('U' == 85) \ + && ('V' == 86) && ('W' == 87) && ('X' == 88) && ('Y' == 89) \ + && ('Z' == 90) && ('[' == 91) && ('\\' == 92) && (']' == 93) \ + && ('^' == 94) && ('_' == 95) && ('a' == 97) && ('b' == 98) \ + && ('c' == 99) && ('d' == 100) && ('e' == 101) && ('f' == 102) \ + && ('g' == 103) && ('h' == 104) && ('i' == 105) && ('j' == 106) \ + && ('k' == 107) && ('l' == 108) && ('m' == 109) && ('n' == 110) \ + && ('o' == 111) && ('p' == 112) && ('q' == 113) && ('r' == 114) \ + && ('s' == 115) && ('t' == 116) && ('u' == 117) && ('v' == 118) \ + && ('w' == 119) && ('x' == 120) && ('y' == 121) && ('z' == 122) \ + && ('{' == 123) && ('|' == 124) && ('}' == 125) && ('~' == 126)) +/* The character set is not based on ISO-646. */ +error "gperf generated tables don't work with this execution character set. Please report a bug to <bug-gnu-gperf@gnu.org>." +#endif + +struct meta_name { const char* name; int idx; }; + +#define TOTAL_KEYWORDS 8 +#define MIN_WORD_LENGTH 10 +#define MAX_WORD_LENGTH 18 +#define MIN_HASH_VALUE 10 +#define MAX_HASH_VALUE 23 +/* maximum key range = 14, duplicates = 0 */ + +#ifdef __GNUC__ +__inline +#else +#ifdef __cplusplus +inline +#endif +#endif +static unsigned int +hash_meta_name (str, len) + register const char *str; + register unsigned int len; +{ + static const unsigned char asso_values[] = + { + 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, + 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, + 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, + 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, + 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, + 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, + 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, + 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, + 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, + 24, 24, 24, 24, 24, 24, 24, 24, 24, 5, + 24, 24, 24, 24, 24, 0, 24, 24, 5, 24, + 24, 24, 0, 24, 0, 0, 24, 24, 24, 24, + 0, 24, 24, 24, 24, 24, 24, 24, 24, 24, + 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, + 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, + 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, + 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, + 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, + 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, + 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, + 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, + 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, + 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, + 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, + 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, + 24, 24, 24, 24, 24, 24 + }; + return len + asso_values[(unsigned char)str[7]]; +} + +#ifdef __GNUC__ +__inline +#endif +const struct meta_name * +lookup_meta_name (str, len) + register const char *str; + register unsigned int len; +{ + static const struct meta_name wordlist[] = + { + {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""}, + {""}, + {"sydney.xid", 7}, + {"sydney.role", 6}, + {""}, {""}, {""}, + {"sydney.icon-png", 5}, + {"sydney.icon-name", 4}, + {"sydney.process-id", 1 }, + {"sydney.stream-name", 3}, + {""}, + {"sydney.language", 2}, + {""}, {""}, + {"sydney.client-name", 0} + }; + + if (len <= MAX_WORD_LENGTH && len >= MIN_WORD_LENGTH) + { + register int key = hash_meta_name (str, len); + + if (key <= MAX_HASH_VALUE && key >= 0) + { + register const char *s = wordlist[key].name; + + if (*str == *s && !strcmp (str + 1, s + 1)) + return &wordlist[key]; + } + } + return 0; +} @@ -9,46 +9,23 @@ #include "common.h" #include "macro.h" #include "malloc.h" +#include "converter.h" #define DEFAULT_DEVICE "/dev/dsp" #define DRIVER_NAME "oss" typedef struct oss_device oss_device_t; -#define OSS_DEVICE(x) ((oss_device_t*) (x)) +#define OSS_DEVICE(x) ((oss_device_t*) (x->private)) struct oss_device { - sa_device_t parent; + sa_device_t *parent; int fd; - - unsigned real_rate; - unsigned real_nchannels; - sa_pcm_format_t real_pcm_format; + pcm_attrs_t real_pcm_attrs; + converter_t converter_read, converter_write; }; -int device_create_opaque(sa_device_t **dev, const char *client_name, sa_mode_t mode, const char *codec) { - int error; - - if ((error = device_alloc_opaque(dev, sizeof(oss_device_t), client_name, mode, codec))) - return error; - - OSS_DEVICE(*dev)->fd = -1; - - return SA_SUCCESS; -} - -int device_create_pcm(sa_device_t **dev, const char *client_name, sa_mode_t mode, sa_pcm_format_t format, unsigned rate, unsigned channels) { - int error; - - if ((error = device_alloc_pcm(dev, sizeof(oss_device_t), client_name, mode, format, rate, channels))) - return error; - - OSS_DEVICE(*dev)->fd = -1; - - return SA_SUCCESS; -} - int device_open(sa_device_t *dev) { - oss_device_t *oss = OSS_DEVICE(dev); + oss_device_t *oss; char *n; int f, arg, bs, r, phase, i, found, suggested; unsigned c; @@ -70,8 +47,11 @@ int device_open(sa_device_t *dev) { if (dev->driver && strcmp(dev->driver, DRIVER_NAME)) return SA_ERROR_NO_DRIVER; - - sa_assert(oss->fd < 0); + + if (!(dev->private = oss = sa_new0(oss_device_t, 1))) + return SA_ERROR_OOM; + + oss->parent = dev; n = dev->device ? dev->device : DEFAULT_DEVICE; if ((oss->fd = open(n, dev->mode == SA_MODE_RDONLY ? O_RDONLY : (dev->mode == SA_MODE_WRONLY ? O_WRONLY : O_RDWR) | O_NOCTTY | O_NONBLOCK)) < 0) { @@ -99,7 +79,7 @@ int device_open(sa_device_t *dev) { return SA_ERROR_NO_CODEC; } else - f = format_map[dev->pcm_format]; + f = format_map[dev->pcm_attrs.format]; bs = 0; @@ -142,23 +122,23 @@ int device_open(sa_device_t *dev) { switch (f) { case AFMT_MU_LAW: - oss->real_pcm_format = SA_PCM_FORMAT_ULAW; + oss->real_pcm_attrs.format = SA_PCM_FORMAT_ULAW; break; case AFMT_A_LAW: - oss->real_pcm_format = SA_PCM_FORMAT_ALAW; + oss->real_pcm_attrs.format = SA_PCM_FORMAT_ALAW; break; case AFMT_U8: - oss->real_pcm_format = SA_PCM_FORMAT_U8; + oss->real_pcm_attrs.format = SA_PCM_FORMAT_U8; break; case AFMT_S16_LE: - oss->real_pcm_format = SA_PCM_FORMAT_S16_LE; + oss->real_pcm_attrs.format = SA_PCM_FORMAT_S16_LE; break; case AFMT_S16_BE: - oss->real_pcm_format = SA_PCM_FORMAT_S16_BE; + oss->real_pcm_attrs.format = SA_PCM_FORMAT_S16_BE; break; default: @@ -171,7 +151,7 @@ int device_open(sa_device_t *dev) { if (dev->adjust_nchannels >= 0) { /* First try more channels ... */ - for (c = dev->nchannels; c < 16 || c == dev->nchannels; c ++) { + for (c = dev->pcm_attrs.nchannels; c < 8 || c == dev->pcm_attrs.nchannels; c ++) { arg = c; if (ioctl(oss->fd, SNDCTL_DSP_CHANNELS, &arg) < 0) return SA_ERROR_SYSTEM; @@ -184,7 +164,7 @@ int device_open(sa_device_t *dev) { /* ... then try less channels */ if (!found) { - for (c = dev->nchannels - 1; c > 0; c --) { + for (c = dev->pcm_attrs.nchannels - 1; c > 0; c --) { arg = c; if (ioctl(oss->fd, SNDCTL_DSP_CHANNELS, &arg) < 0) return SA_ERROR_SYSTEM; @@ -198,7 +178,7 @@ int device_open(sa_device_t *dev) { } else { /* First try less channels ... */ - for (c = dev->nchannels; c > 0; c --) { + for (c = dev->pcm_attrs.nchannels; c > 0; c --) { arg = c; if (ioctl(oss->fd, SNDCTL_DSP_CHANNELS, &arg) < 0) return SA_ERROR_SYSTEM; @@ -211,7 +191,7 @@ int device_open(sa_device_t *dev) { /* ... then try more channels */ if (!found) { - for (c = dev->nchannels + 1; c < 16; c ++) { + for (c = dev->pcm_attrs.nchannels + 1; c < 8; c ++) { arg = c; if (ioctl(oss->fd, SNDCTL_DSP_CHANNELS, &arg) < 0) return SA_ERROR_SYSTEM; @@ -229,9 +209,35 @@ int device_open(sa_device_t *dev) { return SA_ERROR_SYSTEM; } - oss->real_nchannels = c; + oss->real_pcm_attrs.nchannels = c; - r = dev->rate; + if (!(oss->real_pcm_attrs.channel_map = sa_new(sa_channel_t, c))) + return SA_ERROR_OOM; + + switch (c) { + case 8: + oss->real_pcm_attrs.channel_map[7] = SA_CHANNEL_REAR_RIGHT; + case 7: + oss->real_pcm_attrs.channel_map[6] = SA_CHANNEL_REAR_LEFT; + case 6: + oss->real_pcm_attrs.channel_map[5] = SA_CHANNEL_FRONT_LEFT; + case 5: + oss->real_pcm_attrs.channel_map[4] = SA_CHANNEL_FRONT_RIGHT; + case 4: + oss->real_pcm_attrs.channel_map[3] = SA_CHANNEL_LFE; + case 3: + oss->real_pcm_attrs.channel_map[2] = SA_CHANNEL_CENTER; + case 2: + oss->real_pcm_attrs.channel_map[1] = SA_CHANNEL_RIGHT; + oss->real_pcm_attrs.channel_map[0] = SA_CHANNEL_LEFT; + break; + case 1: + oss->real_pcm_attrs.channel_map[0] = SA_CHANNEL_MONO; + break; + } + + r = dev->pcm_attrs.rate; + r = 44100; suggested = 0; phase = 0; @@ -266,7 +272,7 @@ int device_open(sa_device_t *dev) { if (i == elementsof(try_rates)) { phase = 1; - r = dev->rate; + r = dev->pcm_attrs.rate; } } @@ -301,7 +307,7 @@ int device_open(sa_device_t *dev) { if (i == 0) { phase = 1; - r = dev->rate; + r = dev->pcm_attrs.rate; } } @@ -324,16 +330,24 @@ int device_open(sa_device_t *dev) { } - oss->real_rate = r; + oss->real_pcm_attrs.rate = r; - printf("Chosen: %u channels, %uHz, format=%u\n", oss->real_nchannels, oss->real_rate, oss->real_pcm_format); + printf("Chosen: %u channels, %uHz, format=%u\n", oss->real_pcm_attrs.nchannels, oss->real_pcm_attrs.rate, oss->real_pcm_attrs.format); if (dev->adjust_nchannels != 0) - dev->nchannels = oss->real_nchannels; + dev->pcm_attrs.nchannels = oss->real_pcm_attrs.nchannels; if (dev->adjust_rate != 0) - dev->rate = oss->real_rate; - if (dev->pcm_format != 0) - dev->pcm_format = oss->real_pcm_format; + dev->pcm_attrs.rate = oss->real_pcm_attrs.rate; + if (dev->adjust_pcm_format != 0) + dev->pcm_attrs.format = oss->real_pcm_attrs.format; + + if (dev->mode & SA_MODE_RDONLY) + if ((r = converter_init(&oss->converter_read, &oss->real_pcm_attrs, &dev->pcm_attrs, dev->dynamic_rate_enabled)) < 0) + return r; + + if (dev->mode & SA_MODE_WRONLY) + if ((r = converter_init(&oss->converter_write, &dev->pcm_attrs, &oss->real_pcm_attrs, dev->dynamic_rate_enabled)) < 0) + return r; } return SA_SUCCESS; @@ -344,8 +358,11 @@ int device_destroy(sa_device_t *dev) { if (oss->fd >= 0) close(oss->fd); - - device_free(dev); + + sa_free(oss->real_pcm_attrs.channel_map); + converter_done(&oss->converter_read); + converter_done(&oss->converter_write); + sa_free(oss); return SA_SUCCESS; } @@ -353,16 +370,33 @@ int device_start_thread(sa_device_t *dev, sa_event_callback_t *callback) { return SA_ERROR_NOT_SUPPORTED; } -int device_change_input_volume(sa_device_t *dev, int *vol) { - return SA_ERROR_NOT_SUPPORTED; +int device_change_input_volume(sa_device_t *dev, int vol[]) { + oss_device_t *oss = OSS_DEVICE(dev); + + sa_return_val_if_fail(!dev->codec, SA_ERROR_NOT_SUPPORTED); + + converter_set_volume(&oss->converter_read, vol); + + return SA_SUCCESS; } -int device_change_output_volume(sa_device_t *dev, int *vol) { - return SA_ERROR_NOT_SUPPORTED; +int device_change_output_volume(sa_device_t *dev, int vol[]) { + oss_device_t *oss = OSS_DEVICE(dev); + + sa_return_val_if_fail(!dev->codec, SA_ERROR_NOT_SUPPORTED); + + converter_set_volume(&oss->converter_write, vol); + + return SA_SUCCESS; } -int device_change_sampling_rate(sa_device_t *dev, unsigned rate) { - return SA_ERROR_NOT_SUPPORTED; +int device_change_rate(sa_device_t *dev, unsigned rate) { + oss_device_t *oss = OSS_DEVICE(dev); + + converter_set_ratio(&oss->converter_read, oss->real_pcm_attrs.rate, dev->pcm_attrs.rate); + converter_set_ratio(&oss->converter_write, dev->pcm_attrs.rate, oss->real_pcm_attrs.rate); + + return SA_SUCCESS; } int device_get_state(sa_device_t *dev, sa_state_t *state) { @@ -378,7 +412,30 @@ int device_pread(sa_device_t *dev, void *data, size_t nbytes, int64_t offset, sa } int device_pwrite(sa_device_t *dev, const void *data, size_t nbytes, int64_t offset, sa_seek_t whence) { - return SA_ERROR_NOT_SUPPORTED; + oss_device_t *oss = OSS_DEVICE(dev); + void **dst; + size_t *stride; + int ret; + uint8_t *d; + + if ((ret = converter_go_interleaved(&oss->converter_write, data, &dst, &stride, 1, &nbytes))) + return ret; + + d = dst[0]; + + while (nbytes > 0) { + ssize_t l; + + if ((l = write(oss->fd, d, nbytes)) < 0) + return SA_ERROR_SYSTEM; + + sa_assert(l > 0); + + nbytes -= l; + d += l; + } + + return SA_SUCCESS; } int device_pread_ni(sa_device_t *dev, unsigned channel, void *data, size_t nbytes, int64_t offset, sa_seek_t whence) { @@ -406,19 +463,20 @@ int device_pause(sa_device_t *dev) { } int device_drain(sa_device_t *dev) { - return SA_ERROR_NOT_SUPPORTED; + oss_device_t *oss = OSS_DEVICE(dev); + + if (ioctl(oss->fd, SNDCTL_DSP_SYNC, NULL) < 0) + return SA_ERROR_SYSTEM; + + return SA_SUCCESS; } /* Unsupported operations */ -int device_change_device(sa_device_t *dev, const char *device_name) { - return SA_ERROR_NOT_SUPPORTED; -} - -int device_change_client_name(sa_device_t *dev, const char *client_name) { +int device_change_device(sa_device_t *dev) { return SA_ERROR_NOT_SUPPORTED; } -int device_change_stream_name(sa_device_t *dev, const char *stream_name) { +int device_change_meta_data(sa_device_t *dev, const char *name, const void *data, size_t size) { return SA_ERROR_NOT_SUPPORTED; } @@ -1,164 +1,42 @@ -#include "sydney.h" +#include "macro.h" +#include "resample.h" -#define MAX_OPERATIONS 10 +static void resample_s16(SpeexResamplerState *speex, unsigned channel, void *dst, size_t dstr, const void *src, size_t sstr, size_t in_bytes, size_t *out_bytes) { -typedef struct buffer_spec buffer_spec_t; - -struct buffer_spec { - void *data; - size_t size; - size_t max_size; -}; - -typedef struct operation operation_t; - -typedef void (*operation_execute_t)(operation_t *o, buffer_spec_t *source); - -struct operation { - operation_execute_t execute; - - struct buffer_spec result; - - size_t sample - unsigned nchannels; -}; - -typedef struct pipeline pipeline_t; - -struct pipeline { - operation_t operations[MAX_OPERATIONS]; -}; - -static int native_pcm_format(pcm_format_t f) { - - /* Sample formats we know to handle natively */ - - return - f == SA_PCM_FORMAT_S16_NE || - f == SA_PCM_FORMAT_S32_NE || - f == SA_PCM_FORMAT_FLOAT32_NE; + spx_uint32_t in_samples = in_bytes/sizeof(int16_t), out_samples = *out_bytes/sizeof(int16_t); -} - -/* Steps: prefmt -> volume -> remap -> resample -> postfmt */ + speex_resampler_set_input_stride(speex, sstr/sizeof(int16_t)); + speex_resampler_set_input_stride(speex, dstr/sizeof(int16_t)); -int build_pipeline_output( - sa_device_t *dev, - sa_pipeline_t *pipeline, - sa_pcm_format format, - unsigned rate, - unsigned nchannels, - const sa_channel_t map[]) { + speex_resampler_process_int(speex, channel, src, &in_samples, dst, &out_samples); - int *channel_map_table; - unsigned u, t; - int prefmt_required; - int sum_required = 0; - int o = 0; - pcm_format_t work_format; - operation_execute_t func; - - sa_assert(dev); - sa_assert(pipeline); + sa_assert(in_samples == in_bytes/sizeof(int16_t)); - if (!(channel_map_table = sa_new(int, nchannels * dev->nchannels))) - return SA_ERROR_OOM; - - for (u = 0; u < nchannels; u++) { - unsigned k = 0; - - for (t = 0; t < dev->nchannels; t++) { + *out_bytes = out_samples * sizeof(int16_t); +} - if (map[u] == map[t]) - channel_map_table[u * dev->nchannels + k++] += t; - } +static void resample_f32(SpeexResamplerState *speex, unsigned channel, void *dst, size_t dstr, const void *src, size_t sstr, size_t in_bytes, size_t *out_bytes) { - if (k > 1) - sum_required = 1; - - channel_map_table[k] = (unsigned) -1; - } + spx_uint32_t in_samples = in_bytes/sizeof(float), out_samples = *out_bytes/sizeof(float); - prefmt_required = - sum_required || - dev->output_volume != 0 || - dev->rate != rate || - dev->dsr_enabled; - - if (native_pcm_format(dev->pcm_format)) - prefmt_required = 0; - - if (prefmt_required) { - - switch (dev->pcm_format) { - case SA_PCM_FORMAT_U8: - case SA_PCM_FORMAT_ULAW: - case SA_PCM_FORMAT_ALAW: - case SA_PCM_FORMAT_S16_LE: - case SA_PCM_FORMAT_S16_BE: - work_format = SA_PCM_FORMAT_S16_NE; - break; + speex_resampler_set_input_stride(speex, sstr/sizeof(float)); + speex_resampler_set_input_stride(speex, dstr/sizeof(float)); - case SA_PCM_FORMAT_S24_LE: - case SA_PCM_FORMAT_S24_BE: - case SA_PCM_FORMAT_S32_LE: - case SA_PCM_FORMAT_S32_BE: - work_format = SA_PCM_FORMAT_S32_NE; - break; + speex_resampler_process_float(speex, channel, src, &in_samples, dst, &out_samples); - case SA_PCM_FORMAT_FLOAT32_LE: - case SA_PCM_FORMAT_FLOAT32_BE: - work_format = SA_PCM_FORMAT_FLOAT32_NE; - break; - } - - sa_assert(native_pcm_format(work_format)); + sa_assert(in_samples == in_bytes/sizeof(float)); - func = get_format_converter(dev->pcm_format, work_format); - pipeline.operations[o].execute = func; - pipeline.operations[o].buffer.data = NULL; - pipeline.operations[o].buffer.stride = dev->nchannels * get_sample_size(dev->work_format); - pipeline.operations[o]. - o++; - - } else - work_format = dev->pcm_format; - - if (dev->output_volume != 0) { - pipeline.operations[o].execute = get_scaler(work_format); - pipeline.operations[o].buffer.data = NULL; - o++; - } - - if (dev->rate != rate || dev->dsr_enabled) { - pipeline.operations[o].execute = get_resampler(work_format); - pipeline.operations[o].buffer.data = NULL; - o++; - } - - if (work_format != pcm_format) { - pipeline.operations[o].execute = get_format_converter(work_format, pcm_format); - pipeline.operations[o].buffer.data = NULL; - o++; - } - - pipeline.operations[o].execute = NULL; - - - + *out_bytes = out_samples * sizeof(float); } -void execute_pipeline(sa_device_t *dev, pipeline_t *pipeline, const buffer_spec_t *buffer, buffer_spec_t *output) { - sa_operation_t *o; - - sa_assert(dev); - sa_assert(pipeline); - sa_assert(buffer); +resample_func_t get_resample_func(sa_pcm_format_t f) { + + static const resample_func_t funcs[SA_PCM_FORMAT_MAX] = { + [SA_PCM_FORMAT_S16_NE] = resample_s16, + [SA_PCM_FORMAT_FLOAT32_NE] = resample_f32 + }; - for (o = pipeline->operations; o->execute; o++) { - o->execute(o, buffer); - buffer = &o->buffer; - } + sa_assert(f < SA_PCM_FORMAT_MAX); - *output = *buffer; + return funcs[f]; } diff --git a/resample.h b/resample.h new file mode 100644 index 0000000..4e9fae3 --- /dev/null +++ b/resample.h @@ -0,0 +1,14 @@ +#ifndef foosydneyresamplehfoo +#define foosydneyresamplehfoo + +#include <sys/types.h> +#include <inttypes.h> + +#include "sydney.h" +#include "speex/speex_resampler.h" + +typedef void (*resample_func_t) (SpeexResamplerState *speex, unsigned channel, void *dst, size_t dstr, const void *src, size_t sstr, size_t in_bytes, size_t *out_bytes); + +resample_func_t get_resample_func(sa_pcm_format_t f); + +#endif diff --git a/speex/arch.h b/speex/arch.h new file mode 100644 index 0000000..e2d731a --- /dev/null +++ b/speex/arch.h @@ -0,0 +1,197 @@ +/* Copyright (C) 2003 Jean-Marc Valin */ +/** + @file arch.h + @brief Various architecture definitions Speex +*/ +/* + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions + are met: + + - Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + + - Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in the + documentation and/or other materials provided with the distribution. + + - Neither the name of the Xiph.org Foundation nor the names of its + contributors may be used to endorse or promote products derived from + this software without specific prior written permission. + + THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR + CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF + LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING + NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +*/ + +#ifndef ARCH_H +#define ARCH_H + +#ifndef OUTSIDE_SPEEX +#include "speex/speex_types.h" +#endif + +#define ABS(x) ((x) < 0 ? (-(x)) : (x)) /**< Absolute integer value. */ +#define ABS16(x) ((x) < 0 ? (-(x)) : (x)) /**< Absolute 16-bit value. */ +#define MIN16(a,b) ((a) < (b) ? (a) : (b)) /**< Maximum 16-bit value. */ +#define MAX16(a,b) ((a) > (b) ? (a) : (b)) /**< Maximum 16-bit value. */ +#define ABS32(x) ((x) < 0 ? (-(x)) : (x)) /**< Absolute 32-bit value. */ +#define MIN32(a,b) ((a) < (b) ? (a) : (b)) /**< Maximum 32-bit value. */ +#define MAX32(a,b) ((a) > (b) ? (a) : (b)) /**< Maximum 32-bit value. */ + +#ifdef FIXED_POINT + +typedef spx_int16_t spx_word16_t; +typedef spx_int32_t spx_word32_t; +typedef spx_word32_t spx_mem_t; +typedef spx_word16_t spx_coef_t; +typedef spx_word16_t spx_lsp_t; +typedef spx_word32_t spx_sig_t; + +#define Q15ONE 32767 + +#define LPC_SCALING 8192 +#define SIG_SCALING 16384 +#define LSP_SCALING 8192. +#define GAMMA_SCALING 32768. +#define GAIN_SCALING 64 +#define GAIN_SCALING_1 0.015625 + +#define LPC_SHIFT 13 +#define LSP_SHIFT 13 +#define SIG_SHIFT 14 + +#define VERY_SMALL 0 +#define VERY_LARGE32 ((spx_word32_t)2147483647) +#define VERY_LARGE16 ((spx_word16_t)32767) +#define Q15_ONE ((spx_word16_t)32767) + + +#ifdef FIXED_DEBUG +#include "fixed_debug.h" +#else + +#include "fixed_generic.h" + +#ifdef ARM5E_ASM +#include "fixed_arm5e.h" +#elif defined (ARM4_ASM) +#include "fixed_arm4.h" +#elif defined (ARM5E_ASM) +#include "fixed_arm5e.h" +#elif defined (BFIN_ASM) +#include "fixed_bfin.h" +#endif + +#endif + + +#else + +typedef float spx_mem_t; +typedef float spx_coef_t; +typedef float spx_lsp_t; +typedef float spx_sig_t; +typedef float spx_word16_t; +typedef float spx_word32_t; + +#define Q15ONE 1.0f +#define LPC_SCALING 1.f +#define SIG_SCALING 1.f +#define LSP_SCALING 1.f +#define GAMMA_SCALING 1.f +#define GAIN_SCALING 1.f +#define GAIN_SCALING_1 1.f + +#define LPC_SHIFT 0 +#define LSP_SHIFT 0 +#define SIG_SHIFT 0 + +#define VERY_SMALL 1e-15f +#define VERY_LARGE32 1e15f +#define VERY_LARGE16 1e15f +#define Q15_ONE ((spx_word16_t)1.f) + +#define QCONST16(x,bits) (x) +#define QCONST32(x,bits) (x) + +#define NEG16(x) (-(x)) +#define NEG32(x) (-(x)) +#define EXTRACT16(x) (x) +#define EXTEND32(x) (x) +#define SHR16(a,shift) (a) +#define SHL16(a,shift) (a) +#define SHR32(a,shift) (a) +#define SHL32(a,shift) (a) +#define PSHR16(a,shift) (a) +#define PSHR32(a,shift) (a) +#define VSHR32(a,shift) (a) +#define SATURATE16(x,a) (x) +#define SATURATE32(x,a) (x) + +#define PSHR(a,shift) (a) +#define SHR(a,shift) (a) +#define SHL(a,shift) (a) +#define SATURATE(x,a) (x) + +#define ADD16(a,b) ((a)+(b)) +#define SUB16(a,b) ((a)-(b)) +#define ADD32(a,b) ((a)+(b)) +#define SUB32(a,b) ((a)-(b)) +#define MULT16_16_16(a,b) ((a)*(b)) +#define MULT16_16(a,b) ((spx_word32_t)(a)*(spx_word32_t)(b)) +#define MAC16_16(c,a,b) ((c)+(spx_word32_t)(a)*(spx_word32_t)(b)) + +#define MULT16_32_Q11(a,b) ((a)*(b)) +#define MULT16_32_Q13(a,b) ((a)*(b)) +#define MULT16_32_Q14(a,b) ((a)*(b)) +#define MULT16_32_Q15(a,b) ((a)*(b)) +#define MULT16_32_P15(a,b) ((a)*(b)) + +#define MAC16_32_Q11(c,a,b) ((c)+(a)*(b)) +#define MAC16_32_Q15(c,a,b) ((c)+(a)*(b)) + +#define MAC16_16_Q11(c,a,b) ((c)+(a)*(b)) +#define MAC16_16_Q13(c,a,b) ((c)+(a)*(b)) +#define MAC16_16_P13(c,a,b) ((c)+(a)*(b)) +#define MULT16_16_Q11_32(a,b) ((a)*(b)) +#define MULT16_16_Q13(a,b) ((a)*(b)) +#define MULT16_16_Q14(a,b) ((a)*(b)) +#define MULT16_16_Q15(a,b) ((a)*(b)) +#define MULT16_16_P15(a,b) ((a)*(b)) +#define MULT16_16_P13(a,b) ((a)*(b)) +#define MULT16_16_P14(a,b) ((a)*(b)) + +#define DIV32_16(a,b) (((spx_word32_t)(a))/(spx_word16_t)(b)) +#define PDIV32_16(a,b) (((spx_word32_t)(a))/(spx_word16_t)(b)) +#define DIV32(a,b) (((spx_word32_t)(a))/(spx_word32_t)(b)) +#define PDIV32(a,b) (((spx_word32_t)(a))/(spx_word32_t)(b)) + + +#endif + + +#if defined (CONFIG_TI_C54X) || defined (CONFIG_TI_C55X) + +/* 2 on TI C5x DSP */ +#define BYTES_PER_CHAR 2 +#define BITS_PER_CHAR 16 +#define LOG2_BITS_PER_CHAR 4 + +#else + +#define BYTES_PER_CHAR 1 +#define BITS_PER_CHAR 8 +#define LOG2_BITS_PER_CHAR 3 + +#endif + +#endif diff --git a/speex/resample.c b/speex/resample.c new file mode 100644 index 0000000..26263ab --- /dev/null +++ b/speex/resample.c @@ -0,0 +1,1080 @@ +/* Copyright (C) 2007 Jean-Marc Valin + + File: resample.c + Arbitrary resampling code + + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions are + met: + + 1. Redistributions of source code must retain the above copyright notice, + this list of conditions and the following disclaimer. + + 2. Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in the + documentation and/or other materials provided with the distribution. + + 3. The name of the author may not be used to endorse or promote products + derived from this software without specific prior written permission. + + THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR + IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES + OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, + INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + POSSIBILITY OF SUCH DAMAGE. +*/ + +/* + The design goals of this code are: + - Very fast algorithm + - SIMD-friendly algorithm + - Low memory requirement + - Good *perceptual* quality (and not best SNR) + + The code is working, but it's in a very early stage, so it may have + artifacts, noise or subliminal messages from satan. Also, the API + isn't stable and I can actually promise that I *will* change the API + some time in the future. + +TODO list: + - Variable calculation resolution depending on quality setting + - Single vs double in float mode + - 16-bit vs 32-bit (sinc only) in fixed-point mode + - Make sure the filter update works even when changing params + after only a few samples procesed +*/ + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#ifdef OUTSIDE_SPEEX +#include <stdlib.h> +static void *speex_alloc (int size) {return calloc(size,1);} +static void *speex_realloc (void *ptr, int size) {return realloc(ptr, size);} +static void speex_free (void *ptr) {free(ptr);} +#include "speex_resampler.h" +#include "arch.h" +#else /* OUTSIDE_SPEEX */ + +#include "speex/speex_resampler.h" +#include "misc.h" +#endif /* OUTSIDE_SPEEX */ + +#include <math.h> + +#ifndef M_PI +#define M_PI 3.14159263 +#endif + +#ifdef FIXED_POINT +#define WORD2INT(x) ((x) < -32767 ? -32768 : ((x) > 32766 ? 32767 : (x))) +#else +#define WORD2INT(x) ((x) < -32767.5f ? -32768 : ((x) > 32766.5f ? 32767 : floor(.5+(x)))) +#endif + +/*#define float double*/ +#define FILTER_SIZE 64 +#define OVERSAMPLE 8 + +#define IMAX(a,b) ((a) > (b) ? (a) : (b)) + +#ifndef NULL +#define NULL 0 +#endif + +typedef int (*resampler_basic_func)(SpeexResamplerState *, spx_uint32_t , const spx_word16_t *, spx_uint32_t *, spx_word16_t *, spx_uint32_t *); + +struct SpeexResamplerState_ { + spx_uint32_t in_rate; + spx_uint32_t out_rate; + spx_uint32_t num_rate; + spx_uint32_t den_rate; + + int quality; + spx_uint32_t nb_channels; + spx_uint32_t filt_len; + spx_uint32_t mem_alloc_size; + int int_advance; + int frac_advance; + float cutoff; + spx_uint32_t oversample; + int initialised; + int started; + + /* These are per-channel */ + spx_int32_t *last_sample; + spx_uint32_t *samp_frac_num; + spx_uint32_t *magic_samples; + + spx_word16_t *mem; + spx_word16_t *sinc_table; + spx_uint32_t sinc_table_length; + resampler_basic_func resampler_ptr; + + int in_stride; + int out_stride; +} ; + +static double kaiser12_table[68] = { + 0.99859849, 1.00000000, 0.99859849, 0.99440475, 0.98745105, 0.97779076, + 0.96549770, 0.95066529, 0.93340547, 0.91384741, 0.89213598, 0.86843014, + 0.84290116, 0.81573067, 0.78710866, 0.75723148, 0.72629970, 0.69451601, + 0.66208321, 0.62920216, 0.59606986, 0.56287762, 0.52980938, 0.49704014, + 0.46473455, 0.43304576, 0.40211431, 0.37206735, 0.34301800, 0.31506490, + 0.28829195, 0.26276832, 0.23854851, 0.21567274, 0.19416736, 0.17404546, + 0.15530766, 0.13794294, 0.12192957, 0.10723616, 0.09382272, 0.08164178, + 0.07063950, 0.06075685, 0.05193064, 0.04409466, 0.03718069, 0.03111947, + 0.02584161, 0.02127838, 0.01736250, 0.01402878, 0.01121463, 0.00886058, + 0.00691064, 0.00531256, 0.00401805, 0.00298291, 0.00216702, 0.00153438, + 0.00105297, 0.00069463, 0.00043489, 0.00025272, 0.00013031, 0.0000527734, + 0.00001000, 0.00000000}; +/* +static double kaiser12_table[36] = { + 0.99440475, 1.00000000, 0.99440475, 0.97779076, 0.95066529, 0.91384741, + 0.86843014, 0.81573067, 0.75723148, 0.69451601, 0.62920216, 0.56287762, + 0.49704014, 0.43304576, 0.37206735, 0.31506490, 0.26276832, 0.21567274, + 0.17404546, 0.13794294, 0.10723616, 0.08164178, 0.06075685, 0.04409466, + 0.03111947, 0.02127838, 0.01402878, 0.00886058, 0.00531256, 0.00298291, + 0.00153438, 0.00069463, 0.00025272, 0.0000527734, 0.00000500, 0.00000000}; +*/ +static double kaiser10_table[36] = { + 0.99537781, 1.00000000, 0.99537781, 0.98162644, 0.95908712, 0.92831446, + 0.89005583, 0.84522401, 0.79486424, 0.74011713, 0.68217934, 0.62226347, + 0.56155915, 0.50119680, 0.44221549, 0.38553619, 0.33194107, 0.28205962, + 0.23636152, 0.19515633, 0.15859932, 0.12670280, 0.09935205, 0.07632451, + 0.05731132, 0.04193980, 0.02979584, 0.02044510, 0.01345224, 0.00839739, + 0.00488951, 0.00257636, 0.00115101, 0.00035515, 0.00000000, 0.00000000}; + +static double kaiser8_table[36] = { + 0.99635258, 1.00000000, 0.99635258, 0.98548012, 0.96759014, 0.94302200, + 0.91223751, 0.87580811, 0.83439927, 0.78875245, 0.73966538, 0.68797126, + 0.63451750, 0.58014482, 0.52566725, 0.47185369, 0.41941150, 0.36897272, + 0.32108304, 0.27619388, 0.23465776, 0.19672670, 0.16255380, 0.13219758, + 0.10562887, 0.08273982, 0.06335451, 0.04724088, 0.03412321, 0.02369490, + 0.01563093, 0.00959968, 0.00527363, 0.00233883, 0.00050000, 0.00000000}; + +static double kaiser6_table[36] = { + 0.99733006, 1.00000000, 0.99733006, 0.98935595, 0.97618418, 0.95799003, + 0.93501423, 0.90755855, 0.87598009, 0.84068475, 0.80211977, 0.76076565, + 0.71712752, 0.67172623, 0.62508937, 0.57774224, 0.53019925, 0.48295561, + 0.43647969, 0.39120616, 0.34752997, 0.30580127, 0.26632152, 0.22934058, + 0.19505503, 0.16360756, 0.13508755, 0.10953262, 0.08693120, 0.06722600, + 0.05031820, 0.03607231, 0.02432151, 0.01487334, 0.00752000, 0.00000000}; + +struct FuncDef { + double *table; + int oversample; +}; + +static struct FuncDef _KAISER12 = {kaiser12_table, 64}; +#define KAISER12 (&_KAISER12) +/*static struct FuncDef _KAISER12 = {kaiser12_table, 32}; +#define KAISER12 (&_KAISER12)*/ +static struct FuncDef _KAISER10 = {kaiser10_table, 32}; +#define KAISER10 (&_KAISER10) +static struct FuncDef _KAISER8 = {kaiser8_table, 32}; +#define KAISER8 (&_KAISER8) +static struct FuncDef _KAISER6 = {kaiser6_table, 32}; +#define KAISER6 (&_KAISER6) + +struct QualityMapping { + int base_length; + int oversample; + float downsample_bandwidth; + float upsample_bandwidth; + struct FuncDef *window_func; +}; + + +/* This table maps conversion quality to internal parameters. There are two + reasons that explain why the up-sampling bandwidth is larger than the + down-sampling bandwidth: + 1) When up-sampling, we can assume that the spectrum is already attenuated + close to the Nyquist rate (from an A/D or a previous resampling filter) + 2) Any aliasing that occurs very close to the Nyquist rate will be masked + by the sinusoids/noise just below the Nyquist rate (guaranteed only for + up-sampling). +*/ +static const struct QualityMapping quality_map[11] = { + { 8, 4, 0.830f, 0.860f, KAISER6 }, /* Q0 */ + { 16, 4, 0.850f, 0.880f, KAISER6 }, /* Q1 */ + { 32, 4, 0.882f, 0.910f, KAISER6 }, /* Q2 */ /* 82.3% cutoff ( ~60 dB stop) 6 */ + { 48, 8, 0.895f, 0.917f, KAISER8 }, /* Q3 */ /* 84.9% cutoff ( ~80 dB stop) 8 */ + { 64, 8, 0.921f, 0.940f, KAISER8 }, /* Q4 */ /* 88.7% cutoff ( ~80 dB stop) 8 */ + { 80, 16, 0.922f, 0.940f, KAISER10}, /* Q5 */ /* 89.1% cutoff (~100 dB stop) 10 */ + { 96, 16, 0.940f, 0.945f, KAISER10}, /* Q6 */ /* 91.5% cutoff (~100 dB stop) 10 */ + {128, 16, 0.950f, 0.950f, KAISER10}, /* Q7 */ /* 93.1% cutoff (~100 dB stop) 10 */ + {160, 16, 0.960f, 0.960f, KAISER10}, /* Q8 */ /* 94.5% cutoff (~100 dB stop) 10 */ + {192, 32, 0.968f, 0.968f, KAISER12}, /* Q9 */ /* 95.5% cutoff (~100 dB stop) 10 */ + {256, 32, 0.975f, 0.975f, KAISER12}, /* Q10 */ /* 96.6% cutoff (~100 dB stop) 10 */ +}; +/*8,24,40,56,80,104,128,160,200,256,320*/ +static double compute_func(float x, struct FuncDef *func) +{ + float y, frac; + double interp[4]; + int ind; + y = x*func->oversample; + ind = (int)floor(y); + frac = (y-ind); + /* CSE with handle the repeated powers */ + interp[3] = -0.1666666667*frac + 0.1666666667*(frac*frac*frac); + interp[2] = frac + 0.5*(frac*frac) - 0.5*(frac*frac*frac); + /*interp[2] = 1.f - 0.5f*frac - frac*frac + 0.5f*frac*frac*frac;*/ + interp[0] = -0.3333333333*frac + 0.5*(frac*frac) - 0.1666666667*(frac*frac*frac); + /* Just to make sure we don't have rounding problems */ + interp[1] = 1.f-interp[3]-interp[2]-interp[0]; + + /*sum = frac*accum[1] + (1-frac)*accum[2];*/ + return interp[0]*func->table[ind] + interp[1]*func->table[ind+1] + interp[2]*func->table[ind+2] + interp[3]*func->table[ind+3]; +} + +#if 0 +#include <stdio.h> +int main(int argc, char **argv) +{ + int i; + for (i=0;i<256;i++) + { + printf ("%f\n", compute_func(i/256., KAISER12)); + } + return 0; +} +#endif + +#ifdef FIXED_POINT +/* The slow way of computing a sinc for the table. Should improve that some day */ +static spx_word16_t sinc(float cutoff, float x, int N, struct FuncDef *window_func) +{ + /*fprintf (stderr, "%f ", x);*/ + float xx = x * cutoff; + if (fabs(x)<1e-6f) + return WORD2INT(32768.*cutoff); + else if (fabs(x) > .5f*N) + return 0; + /*FIXME: Can it really be any slower than this? */ + return WORD2INT(32768.*cutoff*sin(M_PI*xx)/(M_PI*xx) * compute_func(fabs(2.*x/N), window_func)); +} +#else +/* The slow way of computing a sinc for the table. Should improve that some day */ +static spx_word16_t sinc(float cutoff, float x, int N, struct FuncDef *window_func) +{ + /*fprintf (stderr, "%f ", x);*/ + float xx = x * cutoff; + if (fabs(x)<1e-6) + return cutoff; + else if (fabs(x) > .5*N) + return 0; + /*FIXME: Can it really be any slower than this? */ + return cutoff*sin(M_PI*xx)/(M_PI*xx) * compute_func(fabs(2.*x/N), window_func); +} +#endif + +#ifdef FIXED_POINT +static void cubic_coef(spx_word16_t x, spx_word16_t interp[4]) +{ + /* Compute interpolation coefficients. I'm not sure whether this corresponds to cubic interpolation + but I know it's MMSE-optimal on a sinc */ + spx_word16_t x2, x3; + x2 = MULT16_16_P15(x, x); + x3 = MULT16_16_P15(x, x2); + interp[0] = PSHR32(MULT16_16(QCONST16(-0.16667f, 15),x) + MULT16_16(QCONST16(0.16667f, 15),x3),15); + interp[1] = EXTRACT16(EXTEND32(x) + SHR32(SUB32(EXTEND32(x2),EXTEND32(x3)),1)); + interp[3] = PSHR32(MULT16_16(QCONST16(-0.33333f, 15),x) + MULT16_16(QCONST16(.5f,15),x2) - MULT16_16(QCONST16(0.16667f, 15),x3),15); + /* Just to make sure we don't have rounding problems */ + interp[2] = Q15_ONE-interp[0]-interp[1]-interp[3]; + if (interp[2]<32767) + interp[2]+=1; +} +#else +static void cubic_coef(spx_word16_t frac, spx_word16_t interp[4]) +{ + /* Compute interpolation coefficients. I'm not sure whether this corresponds to cubic interpolation + but I know it's MMSE-optimal on a sinc */ + interp[0] = -0.16667f*frac + 0.16667f*frac*frac*frac; + interp[1] = frac + 0.5f*frac*frac - 0.5f*frac*frac*frac; + /*interp[2] = 1.f - 0.5f*frac - frac*frac + 0.5f*frac*frac*frac;*/ + interp[3] = -0.33333f*frac + 0.5f*frac*frac - 0.16667f*frac*frac*frac; + /* Just to make sure we don't have rounding problems */ + interp[2] = 1.-interp[0]-interp[1]-interp[3]; +} +#endif + +static int resampler_basic_direct_single(SpeexResamplerState *st, spx_uint32_t channel_index, const spx_word16_t *in, spx_uint32_t *in_len, spx_word16_t *out, spx_uint32_t *out_len) +{ + int N = st->filt_len; + int out_sample = 0; + spx_word16_t *mem; + int last_sample = st->last_sample[channel_index]; + spx_uint32_t samp_frac_num = st->samp_frac_num[channel_index]; + mem = st->mem + channel_index * st->mem_alloc_size; + while (!(last_sample >= (spx_int32_t)*in_len || out_sample >= (spx_int32_t)*out_len)) + { + int j; + spx_word32_t sum=0; + + /* We already have all the filter coefficients pre-computed in the table */ + const spx_word16_t *ptr; + /* Do the memory part */ + for (j=0;last_sample-N+1+j < 0;j++) + { + sum += MULT16_16(mem[last_sample+j],st->sinc_table[samp_frac_num*st->filt_len+j]); + } + + /* Do the new part */ + ptr = in+st->in_stride*(last_sample-N+1+j); + for (;j<N;j++) + { + sum += MULT16_16(*ptr,st->sinc_table[samp_frac_num*st->filt_len+j]); + ptr += st->in_stride; + } + + *out = PSHR32(sum,15); + out += st->out_stride; + out_sample++; + last_sample += st->int_advance; + samp_frac_num += st->frac_advance; + if (samp_frac_num >= st->den_rate) + { + samp_frac_num -= st->den_rate; + last_sample++; + } + } + st->last_sample[channel_index] = last_sample; + st->samp_frac_num[channel_index] = samp_frac_num; + return out_sample; +} + +#ifdef FIXED_POINT +#else +/* This is the same as the previous function, except with a double-precision accumulator */ +static int resampler_basic_direct_double(SpeexResamplerState *st, spx_uint32_t channel_index, const spx_word16_t *in, spx_uint32_t *in_len, spx_word16_t *out, spx_uint32_t *out_len) +{ + int N = st->filt_len; + int out_sample = 0; + spx_word16_t *mem; + int last_sample = st->last_sample[channel_index]; + spx_uint32_t samp_frac_num = st->samp_frac_num[channel_index]; + mem = st->mem + channel_index * st->mem_alloc_size; + while (!(last_sample >= (spx_int32_t)*in_len || out_sample >= (spx_int32_t)*out_len)) + { + int j; + double sum=0; + + /* We already have all the filter coefficients pre-computed in the table */ + const spx_word16_t *ptr; + /* Do the memory part */ + for (j=0;last_sample-N+1+j < 0;j++) + { + sum += MULT16_16(mem[last_sample+j],(double)st->sinc_table[samp_frac_num*st->filt_len+j]); + } + + /* Do the new part */ + ptr = in+st->in_stride*(last_sample-N+1+j); + for (;j<N;j++) + { + sum += MULT16_16(*ptr,(double)st->sinc_table[samp_frac_num*st->filt_len+j]); + ptr += st->in_stride; + } + + *out = sum; + out += st->out_stride; + out_sample++; + last_sample += st->int_advance; + samp_frac_num += st->frac_advance; + if (samp_frac_num >= st->den_rate) + { + samp_frac_num -= st->den_rate; + last_sample++; + } + } + st->last_sample[channel_index] = last_sample; + st->samp_frac_num[channel_index] = samp_frac_num; + return out_sample; +} +#endif + +static int resampler_basic_interpolate_single(SpeexResamplerState *st, spx_uint32_t channel_index, const spx_word16_t *in, spx_uint32_t *in_len, spx_word16_t *out, spx_uint32_t *out_len) +{ + int N = st->filt_len; + int out_sample = 0; + spx_word16_t *mem; + int last_sample = st->last_sample[channel_index]; + spx_uint32_t samp_frac_num = st->samp_frac_num[channel_index]; + mem = st->mem + channel_index * st->mem_alloc_size; + while (!(last_sample >= (spx_int32_t)*in_len || out_sample >= (spx_int32_t)*out_len)) + { + int j; + spx_word32_t sum=0; + + /* We need to interpolate the sinc filter */ + spx_word32_t accum[4] = {0.f,0.f, 0.f, 0.f}; + spx_word16_t interp[4]; + const spx_word16_t *ptr; + int offset; + spx_word16_t frac; + offset = samp_frac_num*st->oversample/st->den_rate; +#ifdef FIXED_POINT + frac = PDIV32(SHL32((samp_frac_num*st->oversample) % st->den_rate,15),st->den_rate); +#else + frac = ((float)((samp_frac_num*st->oversample) % st->den_rate))/st->den_rate; +#endif + /* This code is written like this to make it easy to optimise with SIMD. + For most DSPs, it would be best to split the loops in two because most DSPs + have only two accumulators */ + for (j=0;last_sample-N+1+j < 0;j++) + { + spx_word16_t curr_mem = mem[last_sample+j]; + accum[0] += MULT16_16(curr_mem,st->sinc_table[4+(j+1)*st->oversample-offset-2]); + accum[1] += MULT16_16(curr_mem,st->sinc_table[4+(j+1)*st->oversample-offset-1]); + accum[2] += MULT16_16(curr_mem,st->sinc_table[4+(j+1)*st->oversample-offset]); + accum[3] += MULT16_16(curr_mem,st->sinc_table[4+(j+1)*st->oversample-offset+1]); + } + ptr = in+st->in_stride*(last_sample-N+1+j); + /* Do the new part */ + for (;j<N;j++) + { + spx_word16_t curr_in = *ptr; + ptr += st->in_stride; + accum[0] += MULT16_16(curr_in,st->sinc_table[4+(j+1)*st->oversample-offset-2]); + accum[1] += MULT16_16(curr_in,st->sinc_table[4+(j+1)*st->oversample-offset-1]); + accum[2] += MULT16_16(curr_in,st->sinc_table[4+(j+1)*st->oversample-offset]); + accum[3] += MULT16_16(curr_in,st->sinc_table[4+(j+1)*st->oversample-offset+1]); + } + cubic_coef(frac, interp); + sum = MULT16_32_Q15(interp[0],accum[0]) + MULT16_32_Q15(interp[1],accum[1]) + MULT16_32_Q15(interp[2],accum[2]) + MULT16_32_Q15(interp[3],accum[3]); + + *out = PSHR32(sum,15); + out += st->out_stride; + out_sample++; + last_sample += st->int_advance; + samp_frac_num += st->frac_advance; + if (samp_frac_num >= st->den_rate) + { + samp_frac_num -= st->den_rate; + last_sample++; + } + } + st->last_sample[channel_index] = last_sample; + st->samp_frac_num[channel_index] = samp_frac_num; + return out_sample; +} + +#ifdef FIXED_POINT +#else +/* This is the same as the previous function, except with a double-precision accumulator */ +static int resampler_basic_interpolate_double(SpeexResamplerState *st, spx_uint32_t channel_index, const spx_word16_t *in, spx_uint32_t *in_len, spx_word16_t *out, spx_uint32_t *out_len) +{ + int N = st->filt_len; + int out_sample = 0; + spx_word16_t *mem; + int last_sample = st->last_sample[channel_index]; + spx_uint32_t samp_frac_num = st->samp_frac_num[channel_index]; + mem = st->mem + channel_index * st->mem_alloc_size; + while (!(last_sample >= (spx_int32_t)*in_len || out_sample >= (spx_int32_t)*out_len)) + { + int j; + spx_word32_t sum=0; + + /* We need to interpolate the sinc filter */ + double accum[4] = {0.f,0.f, 0.f, 0.f}; + float interp[4]; + const spx_word16_t *ptr; + float alpha = ((float)samp_frac_num)/st->den_rate; + int offset = samp_frac_num*st->oversample/st->den_rate; + float frac = alpha*st->oversample - offset; + /* This code is written like this to make it easy to optimise with SIMD. + For most DSPs, it would be best to split the loops in two because most DSPs + have only two accumulators */ + for (j=0;last_sample-N+1+j < 0;j++) + { + double curr_mem = mem[last_sample+j]; + accum[0] += MULT16_16(curr_mem,st->sinc_table[4+(j+1)*st->oversample-offset-2]); + accum[1] += MULT16_16(curr_mem,st->sinc_table[4+(j+1)*st->oversample-offset-1]); + accum[2] += MULT16_16(curr_mem,st->sinc_table[4+(j+1)*st->oversample-offset]); + accum[3] += MULT16_16(curr_mem,st->sinc_table[4+(j+1)*st->oversample-offset+1]); + } + ptr = in+st->in_stride*(last_sample-N+1+j); + /* Do the new part */ + for (;j<N;j++) + { + double curr_in = *ptr; + ptr += st->in_stride; + accum[0] += MULT16_16(curr_in,st->sinc_table[4+(j+1)*st->oversample-offset-2]); + accum[1] += MULT16_16(curr_in,st->sinc_table[4+(j+1)*st->oversample-offset-1]); + accum[2] += MULT16_16(curr_in,st->sinc_table[4+(j+1)*st->oversample-offset]); + accum[3] += MULT16_16(curr_in,st->sinc_table[4+(j+1)*st->oversample-offset+1]); + } + cubic_coef(frac, interp); + sum = interp[0]*accum[0] + interp[1]*accum[1] + interp[2]*accum[2] + interp[3]*accum[3]; + + *out = PSHR32(sum,15); + out += st->out_stride; + out_sample++; + last_sample += st->int_advance; + samp_frac_num += st->frac_advance; + if (samp_frac_num >= st->den_rate) + { + samp_frac_num -= st->den_rate; + last_sample++; + } + } + st->last_sample[channel_index] = last_sample; + st->samp_frac_num[channel_index] = samp_frac_num; + return out_sample; +} +#endif + +static void update_filter(SpeexResamplerState *st) +{ + spx_uint32_t old_length; + + old_length = st->filt_len; + st->oversample = quality_map[st->quality].oversample; + st->filt_len = quality_map[st->quality].base_length; + + if (st->num_rate > st->den_rate) + { + /* down-sampling */ + st->cutoff = quality_map[st->quality].downsample_bandwidth * st->den_rate / st->num_rate; + /* FIXME: divide the numerator and denominator by a certain amount if they're too large */ + st->filt_len = st->filt_len*st->num_rate / st->den_rate; + /* Round down to make sure we have a multiple of 4 */ + st->filt_len &= (~0x3); + if (2*st->den_rate < st->num_rate) + st->oversample >>= 1; + if (4*st->den_rate < st->num_rate) + st->oversample >>= 1; + if (8*st->den_rate < st->num_rate) + st->oversample >>= 1; + if (16*st->den_rate < st->num_rate) + st->oversample >>= 1; + if (st->oversample < 1) + st->oversample = 1; + } else { + /* up-sampling */ + st->cutoff = quality_map[st->quality].upsample_bandwidth; + } + + /* Choose the resampling type that requires the least amount of memory */ + if (st->den_rate <= st->oversample) + { + spx_uint32_t i; + if (!st->sinc_table) + st->sinc_table = (spx_word16_t *)speex_alloc(st->filt_len*st->den_rate*sizeof(spx_word16_t)); + else if (st->sinc_table_length < st->filt_len*st->den_rate) + { + st->sinc_table = (spx_word16_t *)speex_realloc(st->sinc_table,st->filt_len*st->den_rate*sizeof(spx_word16_t)); + st->sinc_table_length = st->filt_len*st->den_rate; + } + for (i=0;i<st->den_rate;i++) + { + spx_uint32_t j; + for (j=0;j<st->filt_len;j++) + { + st->sinc_table[i*st->filt_len+j] = sinc(st->cutoff,((j-st->filt_len/2+1)-((float)i)/st->den_rate), st->filt_len, quality_map[st->quality].window_func); + } + } +#ifdef FIXED_POINT + st->resampler_ptr = resampler_basic_direct_single; +#else + if (st->quality>8) + st->resampler_ptr = resampler_basic_direct_double; + else + st->resampler_ptr = resampler_basic_direct_single; +#endif + /*fprintf (stderr, "resampler uses direct sinc table and normalised cutoff %f\n", cutoff);*/ + } else { + spx_int32_t i; + if (!st->sinc_table) + st->sinc_table = (spx_word16_t *)speex_alloc((st->filt_len*st->oversample+8)*sizeof(spx_word16_t)); + else if (st->sinc_table_length < st->filt_len*st->oversample+8) + { + st->sinc_table = (spx_word16_t *)speex_realloc(st->sinc_table,(st->filt_len*st->oversample+8)*sizeof(spx_word16_t)); + st->sinc_table_length = st->filt_len*st->oversample+8; + } + for (i=-4;i<(spx_int32_t)(st->oversample*st->filt_len+4);i++) + st->sinc_table[i+4] = sinc(st->cutoff,(i/(float)st->oversample - st->filt_len/2), st->filt_len, quality_map[st->quality].window_func); +#ifdef FIXED_POINT + st->resampler_ptr = resampler_basic_interpolate_single; +#else + if (st->quality>8) + st->resampler_ptr = resampler_basic_interpolate_double; + else + st->resampler_ptr = resampler_basic_interpolate_single; +#endif + /*fprintf (stderr, "resampler uses interpolated sinc table and normalised cutoff %f\n", cutoff);*/ + } + st->int_advance = st->num_rate/st->den_rate; + st->frac_advance = st->num_rate%st->den_rate; + + if (!st->mem) + { + spx_uint32_t i; + st->mem = (spx_word16_t*)speex_alloc(st->nb_channels*(st->filt_len-1) * sizeof(spx_word16_t)); + for (i=0;i<st->nb_channels*(st->filt_len-1);i++) + st->mem[i] = 0; + st->mem_alloc_size = st->filt_len-1; + /*speex_warning("init filter");*/ + } else if (!st->started) + { + spx_uint32_t i; + st->mem = (spx_word16_t*)speex_realloc(st->mem, st->nb_channels*(st->filt_len-1) * sizeof(spx_word16_t)); + for (i=0;i<st->nb_channels*(st->filt_len-1);i++) + st->mem[i] = 0; + st->mem_alloc_size = st->filt_len-1; + /*speex_warning("reinit filter");*/ + } else if (st->filt_len > old_length) + { + spx_int32_t i; + /* Increase the filter length */ + /*speex_warning("increase filter size");*/ + int old_alloc_size = st->mem_alloc_size; + if (st->filt_len-1 > st->mem_alloc_size) + { + st->mem = (spx_word16_t*)speex_realloc(st->mem, st->nb_channels*(st->filt_len-1) * sizeof(spx_word16_t)); + st->mem_alloc_size = st->filt_len-1; + } + for (i=st->nb_channels-1;i>=0;i--) + { + spx_int32_t j; + spx_uint32_t olen = old_length; + if (st->magic_samples[i]) + { + /* Try and remove the magic samples as if nothing had happened */ + + /* FIXME: This is wrong but for now we need it to avoid going over the array bounds */ + if (st->magic_samples[i] > (st->filt_len - old_length)/2) + st->magic_samples[i] = (st->filt_len - old_length)/2; + + olen = old_length + 2*st->magic_samples[i]; + for (j=old_length-2+st->magic_samples[i];j>=0;j--) + st->mem[i*st->mem_alloc_size+j+st->magic_samples[i]] = st->mem[i*old_alloc_size+j]; + for (j=0;j<st->magic_samples[i];j++) + st->mem[i*st->mem_alloc_size+j] = 0; + st->magic_samples[i] = 0; + } + /* Copy data going backward */ + for (j=0;j<olen-1;j++) + st->mem[i*st->mem_alloc_size+(st->filt_len-2-j)] = st->mem[i*old_alloc_size+(olen-2-j)]; + /* Then put zeros for lack of anything better */ + for (;j<st->filt_len-1;j++) + st->mem[i*st->mem_alloc_size+(st->filt_len-2-j)] = 0; + /* Adjust last_sample */ + st->last_sample[i] += (st->filt_len - olen)/2; + } + } else if (st->filt_len < old_length) + { + spx_uint32_t i; + /* Reduce filter length, this a bit tricky. We need to store some of the memory as "magic" + samples so they can beused directly as input the next time(s) */ + for (i=0;i<st->nb_channels;i++) + { + spx_uint32_t j; + spx_uint32_t old_magic = st->magic_samples[i]; + + st->magic_samples[i] = (old_length - st->filt_len)/2; + /* We must copy some of the memory that's no longer used */ + /* Copy data going backward */ + for (j=0;j<st->filt_len-1+st->magic_samples[i]+old_magic;j++) + st->mem[i*st->mem_alloc_size+j] = st->mem[i*st->mem_alloc_size+j+st->magic_samples[i]]; + st->magic_samples[i] += old_magic; + } + } + +} + +SpeexResamplerState *speex_resampler_init(spx_uint32_t nb_channels, spx_uint32_t in_rate, spx_uint32_t out_rate, int quality, int *err) +{ + return speex_resampler_init_frac(nb_channels, in_rate, out_rate, in_rate, out_rate, quality, err); +} + +SpeexResamplerState *speex_resampler_init_frac(spx_uint32_t nb_channels, spx_uint32_t ratio_num, spx_uint32_t ratio_den, spx_uint32_t in_rate, spx_uint32_t out_rate, int quality, int *err) +{ + spx_uint32_t i; + SpeexResamplerState *st; + if (quality > 10 || quality < 0) + { + if (err) + *err = RESAMPLER_ERR_INVALID_ARG; + return NULL; + } + st = (SpeexResamplerState *)speex_alloc(sizeof(SpeexResamplerState)); + st->initialised = 0; + st->started = 0; + st->in_rate = 0; + st->out_rate = 0; + st->num_rate = 0; + st->den_rate = 0; + st->quality = -1; + st->sinc_table_length = 0; + st->mem_alloc_size = 0; + st->filt_len = 0; + st->mem = 0; + st->resampler_ptr = 0; + + st->cutoff = 1.f; + st->nb_channels = nb_channels; + st->in_stride = 1; + st->out_stride = 1; + + /* Per channel data */ + st->last_sample = (spx_int32_t*)speex_alloc(nb_channels*sizeof(int)); + st->magic_samples = (spx_uint32_t*)speex_alloc(nb_channels*sizeof(int)); + st->samp_frac_num = (spx_uint32_t*)speex_alloc(nb_channels*sizeof(int)); + for (i=0;i<nb_channels;i++) + { + st->last_sample[i] = 0; + st->magic_samples[i] = 0; + st->samp_frac_num[i] = 0; + } + + speex_resampler_set_quality(st, quality); + speex_resampler_set_rate_frac(st, ratio_num, ratio_den, in_rate, out_rate); + + + update_filter(st); + + st->initialised = 1; + if (err) + *err = RESAMPLER_ERR_SUCCESS; + + return st; +} + +void speex_resampler_destroy(SpeexResamplerState *st) +{ + speex_free(st->mem); + speex_free(st->sinc_table); + speex_free(st->last_sample); + speex_free(st->magic_samples); + speex_free(st->samp_frac_num); + speex_free(st); +} + + + +static int speex_resampler_process_native(SpeexResamplerState *st, spx_uint32_t channel_index, const spx_word16_t *in, spx_uint32_t *in_len, spx_word16_t *out, spx_uint32_t *out_len) +{ + int j=0; + int N = st->filt_len; + int out_sample = 0; + spx_word16_t *mem; + spx_uint32_t tmp_out_len = 0; + mem = st->mem + channel_index * st->mem_alloc_size; + st->started = 1; + + /* Handle the case where we have samples left from a reduction in filter length */ + if (st->magic_samples[channel_index]) + { + spx_uint32_t tmp_in_len; + spx_uint32_t tmp_magic; + tmp_in_len = st->magic_samples[channel_index]; + tmp_out_len = *out_len; + /* magic_samples needs to be set to zero to avoid infinite recursion */ + tmp_magic = st->magic_samples[channel_index]; + st->magic_samples[channel_index] = 0; + speex_resampler_process_native(st, channel_index, mem+N-1, &tmp_in_len, out, &tmp_out_len); + /*speex_warning_int("extra samples:", tmp_out_len);*/ + /* If we couldn't process all "magic" input samples, save the rest for next time */ + if (tmp_in_len < tmp_magic) + { + spx_uint32_t i; + st->magic_samples[channel_index] = tmp_magic-tmp_in_len; + for (i=0;i<st->magic_samples[channel_index];i++) + mem[N-1+i]=mem[N-1+i+tmp_in_len]; + } + out += tmp_out_len; + *out_len -= tmp_out_len; + } + + /* Call the right resampler through the function ptr */ + out_sample = st->resampler_ptr(st, channel_index, in, in_len, out, out_len); + + if (st->last_sample[channel_index] < (spx_int32_t)*in_len) + *in_len = st->last_sample[channel_index]; + *out_len = out_sample+tmp_out_len; + st->last_sample[channel_index] -= *in_len; + + for (j=0;j<N-1-(spx_int32_t)*in_len;j++) + mem[j] = mem[j+*in_len]; + for (;j<N-1;j++) + mem[j] = in[st->in_stride*(j+*in_len-N+1)]; + + return RESAMPLER_ERR_SUCCESS; +} + +#define FIXED_STACK_ALLOC 1024 + +#ifdef FIXED_POINT +int speex_resampler_process_float(SpeexResamplerState *st, spx_uint32_t channel_index, const float *in, spx_uint32_t *in_len, float *out, spx_uint32_t *out_len) +{ + spx_uint32_t i; + int istride_save, ostride_save; +#ifdef VAR_ARRAYS + spx_word16_t x[*in_len]; + spx_word16_t y[*out_len]; + /*VARDECL(spx_word16_t *x); + VARDECL(spx_word16_t *y); + ALLOC(x, *in_len, spx_word16_t); + ALLOC(y, *out_len, spx_word16_t);*/ + istride_save = st->in_stride; + ostride_save = st->out_stride; + for (i=0;i<*in_len;i++) + x[i] = WORD2INT(in[i*st->in_stride]); + st->in_stride = st->out_stride = 1; + speex_resampler_process_native(st, channel_index, x, in_len, y, out_len); + st->in_stride = istride_save; + st->out_stride = ostride_save; + for (i=0;i<*out_len;i++) + out[i*st->out_stride] = y[i]; +#else + spx_word16_t x[FIXED_STACK_ALLOC]; + spx_word16_t y[FIXED_STACK_ALLOC]; + spx_uint32_t ilen=*in_len, olen=*out_len; + istride_save = st->in_stride; + ostride_save = st->out_stride; + while (ilen && olen) + { + spx_uint32_t ichunk, ochunk; + ichunk = ilen; + ochunk = olen; + if (ichunk>FIXED_STACK_ALLOC) + ichunk=FIXED_STACK_ALLOC; + if (ochunk>FIXED_STACK_ALLOC) + ochunk=FIXED_STACK_ALLOC; + for (i=0;i<ichunk;i++) + x[i] = WORD2INT(in[i*st->in_stride]); + st->in_stride = st->out_stride = 1; + speex_resampler_process_native(st, channel_index, x, &ichunk, y, &ochunk); + st->in_stride = istride_save; + st->out_stride = ostride_save; + for (i=0;i<ochunk;i++) + out[i*st->out_stride] = y[i]; + out += ochunk; + in += ichunk; + ilen -= ichunk; + olen -= ochunk; + } + *in_len -= ilen; + *out_len -= olen; +#endif + return RESAMPLER_ERR_SUCCESS; +} +int speex_resampler_process_int(SpeexResamplerState *st, spx_uint32_t channel_index, const spx_int16_t *in, spx_uint32_t *in_len, spx_int16_t *out, spx_uint32_t *out_len) +{ + return speex_resampler_process_native(st, channel_index, in, in_len, out, out_len); +} +#else +int speex_resampler_process_float(SpeexResamplerState *st, spx_uint32_t channel_index, const float *in, spx_uint32_t *in_len, float *out, spx_uint32_t *out_len) +{ + return speex_resampler_process_native(st, channel_index, in, in_len, out, out_len); +} +int speex_resampler_process_int(SpeexResamplerState *st, spx_uint32_t channel_index, const spx_int16_t *in, spx_uint32_t *in_len, spx_int16_t *out, spx_uint32_t *out_len) +{ + spx_uint32_t i; + int istride_save, ostride_save; +#ifdef VAR_ARRAYS + spx_word16_t x[*in_len]; + spx_word16_t y[*out_len]; + /*VARDECL(spx_word16_t *x); + VARDECL(spx_word16_t *y); + ALLOC(x, *in_len, spx_word16_t); + ALLOC(y, *out_len, spx_word16_t);*/ + istride_save = st->in_stride; + ostride_save = st->out_stride; + for (i=0;i<*in_len;i++) + x[i] = in[i*st->in_stride]; + st->in_stride = st->out_stride = 1; + speex_resampler_process_native(st, channel_index, x, in_len, y, out_len); + st->in_stride = istride_save; + st->out_stride = ostride_save; + for (i=0;i<*out_len;i++) + out[i*st->out_stride] = WORD2INT(y[i]); +#else + spx_word16_t x[FIXED_STACK_ALLOC]; + spx_word16_t y[FIXED_STACK_ALLOC]; + spx_uint32_t ilen=*in_len, olen=*out_len; + istride_save = st->in_stride; + ostride_save = st->out_stride; + while (ilen && olen) + { + spx_uint32_t ichunk, ochunk; + ichunk = ilen; + ochunk = olen; + if (ichunk>FIXED_STACK_ALLOC) + ichunk=FIXED_STACK_ALLOC; + if (ochunk>FIXED_STACK_ALLOC) + ochunk=FIXED_STACK_ALLOC; + for (i=0;i<ichunk;i++) + x[i] = in[i*st->in_stride]; + st->in_stride = st->out_stride = 1; + speex_resampler_process_native(st, channel_index, x, &ichunk, y, &ochunk); + st->in_stride = istride_save; + st->out_stride = ostride_save; + for (i=0;i<ochunk;i++) + out[i*st->out_stride] = WORD2INT(y[i]); + out += ochunk; + in += ichunk; + ilen -= ichunk; + olen -= ochunk; + } + *in_len -= ilen; + *out_len -= olen; +#endif + return RESAMPLER_ERR_SUCCESS; +} +#endif + +int speex_resampler_process_interleaved_float(SpeexResamplerState *st, const float *in, spx_uint32_t *in_len, float *out, spx_uint32_t *out_len) +{ + spx_uint32_t i; + int istride_save, ostride_save; + istride_save = st->in_stride; + ostride_save = st->out_stride; + st->in_stride = st->out_stride = st->nb_channels; + for (i=0;i<st->nb_channels;i++) + { + speex_resampler_process_float(st, i, in+i, in_len, out+i, out_len); + } + st->in_stride = istride_save; + st->out_stride = ostride_save; + return RESAMPLER_ERR_SUCCESS; +} + +int speex_resampler_process_interleaved_int(SpeexResamplerState *st, const spx_int16_t *in, spx_uint32_t *in_len, spx_int16_t *out, spx_uint32_t *out_len) +{ + spx_uint32_t i; + int istride_save, ostride_save; + istride_save = st->in_stride; + ostride_save = st->out_stride; + st->in_stride = st->out_stride = st->nb_channels; + for (i=0;i<st->nb_channels;i++) + { + speex_resampler_process_int(st, i, in+i, in_len, out+i, out_len); + } + st->in_stride = istride_save; + st->out_stride = ostride_save; + return RESAMPLER_ERR_SUCCESS; +} + +int speex_resampler_set_rate(SpeexResamplerState *st, spx_uint32_t in_rate, spx_uint32_t out_rate) +{ + return speex_resampler_set_rate_frac(st, in_rate, out_rate, in_rate, out_rate); +} + +void speex_resampler_get_rate(SpeexResamplerState *st, spx_uint32_t *in_rate, spx_uint32_t *out_rate) +{ + *in_rate = st->in_rate; + *out_rate = st->out_rate; +} + +int speex_resampler_set_rate_frac(SpeexResamplerState *st, spx_uint32_t ratio_num, spx_uint32_t ratio_den, spx_uint32_t in_rate, spx_uint32_t out_rate) +{ + int fact; + if (st->in_rate == in_rate && st->out_rate == out_rate && st->num_rate == ratio_num && st->den_rate == ratio_den) + return RESAMPLER_ERR_SUCCESS; + + st->in_rate = in_rate; + st->out_rate = out_rate; + st->num_rate = ratio_num; + st->den_rate = ratio_den; + /* FIXME: This is terribly inefficient, but who cares (at least for now)? */ + for (fact=2;fact<=sqrt(IMAX(in_rate, out_rate));fact++) + { + while ((st->num_rate % fact == 0) && (st->den_rate % fact == 0)) + { + st->num_rate /= fact; + st->den_rate /= fact; + } + } + + if (st->initialised) + update_filter(st); + return RESAMPLER_ERR_SUCCESS; +} + +void speex_resampler_get_ratio(SpeexResamplerState *st, spx_uint32_t *ratio_num, spx_uint32_t *ratio_den) +{ + *ratio_num = st->num_rate; + *ratio_den = st->den_rate; +} + +int speex_resampler_set_quality(SpeexResamplerState *st, int quality) +{ + if (quality > 10 || quality < 0) + return RESAMPLER_ERR_INVALID_ARG; + if (st->quality == quality) + return RESAMPLER_ERR_SUCCESS; + st->quality = quality; + if (st->initialised) + update_filter(st); + return RESAMPLER_ERR_SUCCESS; +} + +void speex_resampler_get_quality(SpeexResamplerState *st, int *quality) +{ + *quality = st->quality; +} + +void speex_resampler_set_input_stride(SpeexResamplerState *st, spx_uint32_t stride) +{ + st->in_stride = stride; +} + +void speex_resampler_get_input_stride(SpeexResamplerState *st, spx_uint32_t *stride) +{ + *stride = st->in_stride; +} + +void speex_resampler_set_output_stride(SpeexResamplerState *st, spx_uint32_t stride) +{ + st->out_stride = stride; +} + +void speex_resampler_get_output_stride(SpeexResamplerState *st, spx_uint32_t *stride) +{ + *stride = st->out_stride; +} + +int speex_resampler_skip_zeros(SpeexResamplerState *st) +{ + spx_uint32_t i; + for (i=0;i<st->nb_channels;i++) + st->last_sample[i] = st->filt_len/2; + return RESAMPLER_ERR_SUCCESS; +} + +int speex_resampler_reset_mem(SpeexResamplerState *st) +{ + spx_uint32_t i; + for (i=0;i<st->nb_channels*(st->filt_len-1);i++) + st->mem[i] = 0; + return RESAMPLER_ERR_SUCCESS; +} + +const char *speex_resampler_strerror(int err) +{ + switch (err) + { + case RESAMPLER_ERR_SUCCESS: + return "Success."; + case RESAMPLER_ERR_ALLOC_FAILED: + return "Memory allocation failed."; + case RESAMPLER_ERR_BAD_STATE: + return "Bad resampler state."; + case RESAMPLER_ERR_INVALID_ARG: + return "Invalid argument."; + case RESAMPLER_ERR_PTR_OVERLAP: + return "Input and output buffers overlap."; + default: + return "Unknown error. Bad error code or strange version mismatch."; + } +} diff --git a/speex/speex_resampler.h b/speex/speex_resampler.h new file mode 100644 index 0000000..c44fbcd --- /dev/null +++ b/speex/speex_resampler.h @@ -0,0 +1,328 @@ +/* Copyright (C) 2007 Jean-Marc Valin + + File: speex_resampler.h + Resampling code + + The design goals of this code are: + - Very fast algorithm + - Low memory requirement + - Good *perceptual* quality (and not best SNR) + + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions are + met: + + 1. Redistributions of source code must retain the above copyright notice, + this list of conditions and the following disclaimer. + + 2. Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in the + documentation and/or other materials provided with the distribution. + + 3. The name of the author may not be used to endorse or promote products + derived from this software without specific prior written permission. + + THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR + IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES + OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, + INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + POSSIBILITY OF SUCH DAMAGE. +*/ + + +#ifndef SPEEX_RESAMPLER_H +#define SPEEX_RESAMPLER_H + +#ifdef OUTSIDE_SPEEX + +/********* WARNING: MENTAL SANITY ENDS HERE *************/ + +/* If the resampler is defined outside of Speex, we change the symbol names so that + there won't be any clash if linking with Speex later on. */ + +/* #define RANDOM_PREFIX your software name here */ +#ifndef RANDOM_PREFIX +#error "Please define RANDOM_PREFIX (above) to something specific to your project to prevent symbol name clashes" +#endif + +#define CAT_PREFIX2(a,b) a ## b +#define CAT_PREFIX(a,b) CAT_PREFIX2(a, b) + +#define speex_resampler_init CAT_PREFIX(RANDOM_PREFIX,_resampler_init) +#define speex_resampler_init_frac CAT_PREFIX(RANDOM_PREFIX,_resampler_init_frac) +#define speex_resampler_destroy CAT_PREFIX(RANDOM_PREFIX,_resampler_destroy) +#define speex_resampler_process_float CAT_PREFIX(RANDOM_PREFIX,_resampler_process_float) +#define speex_resampler_process_int CAT_PREFIX(RANDOM_PREFIX,_resampler_process_int) +#define speex_resampler_process_interleaved_float CAT_PREFIX(RANDOM_PREFIX,_resampler_process_interleaved_float) +#define speex_resampler_process_interleaved_int CAT_PREFIX(RANDOM_PREFIX,_resampler_process_interleaved_int) +#define speex_resampler_set_rate CAT_PREFIX(RANDOM_PREFIX,_resampler_set_rate) +#define speex_resampler_get_rate CAT_PREFIX(RANDOM_PREFIX,_resampler_get_rate) +#define speex_resampler_set_rate_frac CAT_PREFIX(RANDOM_PREFIX,_resampler_set_rate_frac) +#define speex_resampler_get_ratio CAT_PREFIX(RANDOM_PREFIX,_resampler_get_ratio) +#define speex_resampler_set_quality CAT_PREFIX(RANDOM_PREFIX,_resampler_set_quality) +#define speex_resampler_get_quality CAT_PREFIX(RANDOM_PREFIX,_resampler_get_quality) +#define speex_resampler_set_input_stride CAT_PREFIX(RANDOM_PREFIX,_resampler_set_input_stride) +#define speex_resampler_get_input_stride CAT_PREFIX(RANDOM_PREFIX,_resampler_get_input_stride) +#define speex_resampler_set_output_stride CAT_PREFIX(RANDOM_PREFIX,_resampler_set_output_stride) +#define speex_resampler_get_output_stride CAT_PREFIX(RANDOM_PREFIX,_resampler_get_output_stride) +#define speex_resampler_skip_zeros CAT_PREFIX(RANDOM_PREFIX,_resampler_skip_zeros) +#define speex_resampler_reset_mem CAT_PREFIX(RANDOM_PREFIX,_resampler_reset_mem) +#define speex_resampler_strerror CAT_PREFIX(RANDOM_PREFIX,_resampler_strerror) + +#define spx_int16_t short +#define spx_int32_t int +#define spx_uint16_t unsigned short +#define spx_uint32_t unsigned int + +#else /* OUTSIDE_SPEEX */ + +#include "speex/speex_types.h" + +#endif /* OUTSIDE_SPEEX */ + +#ifdef __cplusplus +extern "C" { +#endif + +#define SPEEX_RESAMPLER_QUALITY_MAX 10 +#define SPEEX_RESAMPLER_QUALITY_MIN 0 +#define SPEEX_RESAMPLER_QUALITY_DEFAULT 4 +#define SPEEX_RESAMPLER_QUALITY_VOIP 3 +#define SPEEX_RESAMPLER_QUALITY_DESKTOP 5 + +enum { + RESAMPLER_ERR_SUCCESS = 0, + RESAMPLER_ERR_ALLOC_FAILED = 1, + RESAMPLER_ERR_BAD_STATE = 2, + RESAMPLER_ERR_INVALID_ARG = 3, + RESAMPLER_ERR_PTR_OVERLAP = 4, + + RESAMPLER_ERR_MAX_ERROR +}; + +struct SpeexResamplerState_; +typedef struct SpeexResamplerState_ SpeexResamplerState; + +/** Create a new resampler with integer input and output rates. + * @param nb_channels Number of channels to be processed + * @param in_rate Input sampling rate (integer number of Hz). + * @param out_rate Output sampling rate (integer number of Hz). + * @param quality Resampling quality between 0 and 10, where 0 has poor quality + * and 10 has very high quality. + * @return Newly created resampler state + * @retval NULL Error: not enough memory + */ +SpeexResamplerState *speex_resampler_init(spx_uint32_t nb_channels, + spx_uint32_t in_rate, + spx_uint32_t out_rate, + int quality, + int *err); + +/** Create a new resampler with fractional input/output rates. The sampling + * rate ratio is an arbitrary rational number with both the numerator and + * denominator being 32-bit integers. + * @param nb_channels Number of channels to be processed + * @param ratio_num Numerator of the sampling rate ratio + * @param ratio_den Denominator of the sampling rate ratio + * @param in_rate Input sampling rate rounded to the nearest integer (in Hz). + * @param out_rate Output sampling rate rounded to the nearest integer (in Hz). + * @param quality Resampling quality between 0 and 10, where 0 has poor quality + * and 10 has very high quality. + * @return Newly created resampler state + * @retval NULL Error: not enough memory + */ +SpeexResamplerState *speex_resampler_init_frac(spx_uint32_t nb_channels, + spx_uint32_t ratio_num, + spx_uint32_t ratio_den, + spx_uint32_t in_rate, + spx_uint32_t out_rate, + int quality, + int *err); + +/** Destroy a resampler state. + * @param st Resampler state + */ +void speex_resampler_destroy(SpeexResamplerState *st); + +/** Resample a float array. The input and output buffers must *not* overlap. + * @param st Resampler state + * @param channel_index Index of the channel to process for the multi-channel + * base (0 otherwise) + * @param in Input buffer + * @param in_len Number of input samples in the input buffer. Returns the + * number of samples processed + * @param out Output buffer + * @param out_len Size of the output buffer. Returns the number of samples written + */ +int speex_resampler_process_float(SpeexResamplerState *st, + spx_uint32_t channel_index, + const float *in, + spx_uint32_t *in_len, + float *out, + spx_uint32_t *out_len); + +/** Resample an int array. The input and output buffers must *not* overlap. + * @param st Resampler state + * @param channel_index Index of the channel to process for the multi-channel + * base (0 otherwise) + * @param in Input buffer + * @param in_len Number of input samples in the input buffer. Returns the number + * of samples processed + * @param out Output buffer + * @param out_len Size of the output buffer. Returns the number of samples written + */ +int speex_resampler_process_int(SpeexResamplerState *st, + spx_uint32_t channel_index, + const spx_int16_t *in, + spx_uint32_t *in_len, + spx_int16_t *out, + spx_uint32_t *out_len); + +/** Resample an interleaved float array. The input and output buffers must *not* overlap. + * @param st Resampler state + * @param in Input buffer + * @param in_len Number of input samples in the input buffer. Returns the number + * of samples processed. This is all per-channel. + * @param out Output buffer + * @param out_len Size of the output buffer. Returns the number of samples written. + * This is all per-channel. + */ +int speex_resampler_process_interleaved_float(SpeexResamplerState *st, + const float *in, + spx_uint32_t *in_len, + float *out, + spx_uint32_t *out_len); + +/** Resample an interleaved int array. The input and output buffers must *not* overlap. + * @param st Resampler state + * @param in Input buffer + * @param in_len Number of input samples in the input buffer. Returns the number + * of samples processed. This is all per-channel. + * @param out Output buffer + * @param out_len Size of the output buffer. Returns the number of samples written. + * This is all per-channel. + */ +int speex_resampler_process_interleaved_int(SpeexResamplerState *st, + const spx_int16_t *in, + spx_uint32_t *in_len, + spx_int16_t *out, + spx_uint32_t *out_len); + +/** Set (change) the input/output sampling rates (integer value). + * @param st Resampler state + * @param in_rate Input sampling rate (integer number of Hz). + * @param out_rate Output sampling rate (integer number of Hz). + */ +int speex_resampler_set_rate(SpeexResamplerState *st, + spx_uint32_t in_rate, + spx_uint32_t out_rate); + +/** Get the current input/output sampling rates (integer value). + * @param st Resampler state + * @param in_rate Input sampling rate (integer number of Hz) copied. + * @param out_rate Output sampling rate (integer number of Hz) copied. + */ +void speex_resampler_get_rate(SpeexResamplerState *st, + spx_uint32_t *in_rate, + spx_uint32_t *out_rate); + +/** Set (change) the input/output sampling rates and resampling ratio + * (fractional values in Hz supported). + * @param st Resampler state + * @param ratio_num Numerator of the sampling rate ratio + * @param ratio_den Denominator of the sampling rate ratio + * @param in_rate Input sampling rate rounded to the nearest integer (in Hz). + * @param out_rate Output sampling rate rounded to the nearest integer (in Hz). + */ +int speex_resampler_set_rate_frac(SpeexResamplerState *st, + spx_uint32_t ratio_num, + spx_uint32_t ratio_den, + spx_uint32_t in_rate, + spx_uint32_t out_rate); + +/** Get the current resampling ratio. This will be reduced to the least + * common denominator. + * @param st Resampler state + * @param ratio_num Numerator of the sampling rate ratio copied + * @param ratio_den Denominator of the sampling rate ratio copied + */ +void speex_resampler_get_ratio(SpeexResamplerState *st, + spx_uint32_t *ratio_num, + spx_uint32_t *ratio_den); + +/** Set (change) the conversion quality. + * @param st Resampler state + * @param quality Resampling quality between 0 and 10, where 0 has poor + * quality and 10 has very high quality. + */ +int speex_resampler_set_quality(SpeexResamplerState *st, + int quality); + +/** Get the conversion quality. + * @param st Resampler state + * @param quality Resampling quality between 0 and 10, where 0 has poor + * quality and 10 has very high quality. + */ +void speex_resampler_get_quality(SpeexResamplerState *st, + int *quality); + +/** Set (change) the input stride. + * @param st Resampler state + * @param stride Input stride + */ +void speex_resampler_set_input_stride(SpeexResamplerState *st, + spx_uint32_t stride); + +/** Get the input stride. + * @param st Resampler state + * @param stride Input stride copied + */ +void speex_resampler_get_input_stride(SpeexResamplerState *st, + spx_uint32_t *stride); + +/** Set (change) the output stride. + * @param st Resampler state + * @param stride Output stride + */ +void speex_resampler_set_output_stride(SpeexResamplerState *st, + spx_uint32_t stride); + +/** Get the output stride. + * @param st Resampler state copied + * @param stride Output stride + */ +void speex_resampler_get_output_stride(SpeexResamplerState *st, + spx_uint32_t *stride); + +/** Make sure that the first samples to go out of the resamplers don't have + * leading zeros. This is only useful before starting to use a newly created + * resampler. It is recommended to use that when resampling an audio file, as + * it will generate a file with the same length. For real-time processing, + * it is probably easier not to use this call (so that the output duration + * is the same for the first frame). + * @param st Resampler state + */ +int speex_resampler_skip_zeros(SpeexResamplerState *st); + +/** Reset a resampler so a new (unrelated) stream can be processed. + * @param st Resampler state + */ +int speex_resampler_reset_mem(SpeexResamplerState *st); + +/** Returns the English meaning for an error code + * @param err Error code + * @return English string + */ +const char *speex_resampler_strerror(int err); + +#ifdef __cplusplus +} +#endif + +#endif @@ -55,17 +55,25 @@ typedef enum { SA_PCM_FORMAT_MAX } sa_pcm_format_t; -/* Native endianness definitions for PCM */ +/* Native/reverse endianness definitions for PCM */ #ifdef SA_LITTLE_ENDIAN #define SA_PCM_FORMAT_S16_NE SA_PCM_FORMAT_S16_LE #define SA_PCM_FORMAT_S24_NE SA_PCM_FORMAT_S24_LE #define SA_PCM_FORMAT_S32_NE SA_PCM_FORMAT_S32_LE #define SA_PCM_FORMAT_FLOAT32_NE SA_PCM_FORMAT_FLOAT32_LE +#define SA_PCM_FORMAT_S16_RE SA_PCM_FORMAT_S16_BE +#define SA_PCM_FORMAT_S24_RE SA_PCM_FORMAT_S24_BE +#define SA_PCM_FORMAT_S32_RE SA_PCM_FORMAT_S32_BE +#define SA_PCM_FORMAT_FLOAT32_RE SA_PCM_FORMAT_FLOAT32_BE #else #define SA_PCM_FORMAT_S16_NE SA_PCM_FORMAT_S16_BE #define SA_PCM_FORMAT_S24_NE SA_PCM_FORMAT_S24_BE #define SA_PCM_FORMAT_S32_NE SA_PCM_FORMAT_S32_BE #define SA_PCM_FORMAT_FLOAT32_NE SA_PCM_FORMAT_FLOAT32_BE +#define SA_PCM_FORMAT_S16_RE SA_PCM_FORMAT_S16_LE +#define SA_PCM_FORMAT_S24_RE SA_PCM_FORMAT_S24_LE +#define SA_PCM_FORMAT_S32_RE SA_PCM_FORMAT_S32_LE +#define SA_PCM_FORMAT_FLOAT32_RE SA_PCM_FORMAT_FLOAT32_LE #endif #define SA_CODEC_MPEG "mpeg" @@ -92,7 +100,10 @@ typedef enum { SA_ERROR_NO_DRIVER = -6, SA_ERROR_NO_CODEC = -7, SA_ERROR_NO_PCM_FORMAT = -7, - SA_ERROR_SYSTEM = -8 + SA_ERROR_SYSTEM = -8, + SA_ERROR_NO_INIT = -9, + SA_ERROR_NO_META = -10, + SA_ERROR_MAX = -11 } sa_error_t; /** Possible events for notifications */ @@ -201,14 +212,26 @@ typedef enum { SA_ADJUST_NONE = 0, } sa_adjust_t; +/* Some kind of meta information. */ +#define SA_META_CLIENT_NAME "sydney.client-name" /* utf-8 */ +#define SA_META_PROCESS_ID "sydney.process-id" /* getpid() */ +#define SA_META_LANGUAGE "sydney.language" /* de_DE and similar */ + +/* Some kind of meta information. Not filled in */ +#define SA_META_STREAM_NAME "sydney.stream-name" /* utf-8 */ +#define SA_META_ICON_NAME "sydney.icon-name" /* file name (no slashes) */ +#define SA_META_ICON_PNG "sydney.icon-png" /* PNG blob */ +#define SA_META_ROLE "sydney.role" /* one of: "music", "phone", "game", "event" */ +#define SA_META_XID "sydney.xid" /* X11 window id */ + /** Main callback function */ typedef int (*sa_event_callback_t)(sa_device_t *dev, sa_event_t event); /** Create an opaque (e.g. AC3) codec stream */ -int sa_device_create_opaque(sa_device_t **dev, const char *client_name, sa_mode_t mode, const char *codec); +int sa_device_create_opaque(sa_device_t **dev, sa_mode_t mode, const char *codec); /** Normal way to open a PCM device */ -int sa_device_create_pcm(sa_device_t **dev, const char *client_name, sa_mode_t mode, sa_pcm_format_t format, unsigned rate, unsigned nchannels); +int sa_device_create_pcm(sa_device_t **dev, sa_mode_t mode, sa_pcm_format_t format, unsigned rate, unsigned nchannels); /** Initialise the device */ int sa_device_open(sa_device_t *dev); @@ -233,7 +256,7 @@ int sa_device_set_xrun_mode(sa_device_t *dev, sa_xrun_mode_t mode); int sa_device_set_ni(sa_device_t *dev, int enable); /** Require dynamic sample rate */ -int sa_device_set_dsr(sa_device_t *dev, int enable); +int sa_device_set_dynamic_rate(sa_device_t *dev, int enable); /** Select driver */ int sa_device_set_driver(sa_device_t *dev, const char *driver); @@ -244,20 +267,17 @@ int sa_device_start_thread(sa_device_t *dev, sa_event_callback_t *callback); /** Change the device connected to the stream */ int sa_device_change_device(sa_device_t *dev, const char *device_name); -/** volume in hundreths of dB's*/ -int sa_device_change_input_volume(sa_device_t *dev, int *vol); +/** volume in hundreths of dB*/ +int sa_device_change_input_volume(sa_device_t *dev, const int vol[]); -/** volume in hundreths of dB's*/ -int sa_device_change_output_volume(sa_device_t *dev, int *vol); +/** volume in hundreths of dB*/ +int sa_device_change_output_volume(sa_device_t *dev, const int vol[]); /** Change the sampling rate */ -int sa_device_change_sampling_rate(sa_device_t *dev, unsigned rate); +int sa_device_change_rate(sa_device_t *dev, unsigned rate); -/** Change the name of the client application using the device */ -int sa_device_change_client_name(sa_device_t *dev, const char *client_name); - -/** Change the name of the stream being sent */ -int sa_device_change_stream_name(sa_device_t *dev, const char *stream_name); +/** Change some meta data that is attached to the stream */ +int sa_device_change_meta_data(sa_device_t *dev, const char *name, const void *data, size_t len); /** Associate opaque user data */ int sa_device_change_user_data(sa_device_t *dev, void *value); @@ -275,7 +295,7 @@ int sa_device_adjust_pcm_format(sa_device_t *dev, sa_adjust_t direction); int sa_device_get_state(sa_device_t *dev, sa_state_t *state); /** Get current sampling rate */ -int sa_device_get_sampling_rate(sa_device_t *dev, unsigned *rate); +int sa_device_get_rate(sa_device_t *dev, unsigned *rate); /** Get number of channels */ int sa_device_get_nchannels(sa_device_t *dev, int *nchannels); @@ -338,4 +358,7 @@ int sa_device_pause(sa_device_t *dev); /** Block until all audio has been played */ int sa_device_drain(sa_device_t *dev); +/** Return a human readable error */ +const char *sa_strerror(int code); + #endif diff --git a/test-sine.c b/test-sine.c index ae9ac9e..c0d40e8 100644 --- a/test-sine.c +++ b/test-sine.c @@ -1,10 +1,22 @@ +#include <errno.h> +#include <stdio.h> #include <assert.h> +#include <string.h> #include "sydney.h" -#define ASSERT_SUCCESS(x) assert(x == SA_SUCCESS) +#define ASSERT_SUCCESS(x) do { \ + int _r; \ + if ((_r = x)) { \ + fprintf(stderr, "Operation <%s> failed: %s%s%s\n", \ + #x, \ + sa_strerror(_r), \ + _r == SA_ERROR_SYSTEM ? "; " : "", _r == SA_ERROR_SYSTEM ? strerror(errno) : ""); \ + } \ + assert(_r == SA_SUCCESS); \ +} while(0) -#define FREQ 440 +#define FREQ 880 int main(int argc, char *argv[]) { @@ -12,11 +24,12 @@ int main(int argc, char *argv[]) { float data[4] = { 0.0, 1.0, 0.0, -1.0 }; int i; - ASSERT_SUCCESS(sa_device_create_pcm(&dev, argv[0], SA_MODE_WRONLY, SA_PCM_FORMAT_FLOAT32_NE, FREQ * 4, 1)); + ASSERT_SUCCESS(sa_device_create_pcm(&dev, SA_MODE_WRONLY, SA_PCM_FORMAT_FLOAT32_NE, FREQ * 4, 1)); ASSERT_SUCCESS(sa_device_change_device(dev, "/dev/dsp1")); + sa_device_change_meta_data(dev, SA_META_CLIENT_NAME, argv[0], strlen(argv[0])); ASSERT_SUCCESS(sa_device_open(dev)); - for (i = 0; i < 10; i++) + for (i = 0; i < FREQ; i++) ASSERT_SUCCESS(sa_device_write(dev, data, sizeof(data))); ASSERT_SUCCESS(sa_device_drain(dev)); diff --git a/volscale.c b/volscale.c new file mode 100644 index 0000000..302c7ca --- /dev/null +++ b/volscale.c @@ -0,0 +1,67 @@ +#include <liboil/liboil.h> + +#include "macro.h" +#include "volscale.h" + +static void volscale_u8(void *_dst, size_t dstr, const void *_src, size_t sstr, int32_t factor, int32_t divisor, size_t bytes) { + uint8_t *dst = _dst; + const uint8_t *src = _src; + + for (; bytes > 0; bytes --) { + int32_t t = (((int32_t) *src - 0x80) * factor) / divisor; + *dst = t < -0x80 ? 0 : (t > 0x7F ? 0xFF : (int8_t) (t+0x80)); + + src += sstr; + dst += dstr; + } +} + +static void volscale_s16(void *_dst, size_t dstr, const void *_src, size_t sstr, int32_t factor, int32_t divisor, size_t bytes) { + int16_t *dst = _dst; + const int16_t *src = _src; + unsigned n = bytes / sizeof(int16_t); + + for (; n > 0; n--) { + int32_t t = ((int32_t) *src * factor) / divisor; + *dst = t < -0x8000 ? 0x8000 : (t > 0x7FFF ? 0x7FFF : (int16_t) t); + + src += sstr / sizeof(int16_t); + dst += dstr / sizeof(int16_t); + } +} + +static void volscale_s32(void *_dst, size_t dstr, const void *_src, size_t sstr, int32_t factor, int32_t divisor, size_t bytes) { + int32_t *dst = _dst; + const int32_t *src = _src; + unsigned n = bytes / sizeof(int32_t); + + for (; n > 0; n--) { + int64_t t = ((int64_t) *src * factor) / divisor; + *dst = t < -0x80000000L ? (int32_t) 0x80000000L : (t > 0x7fffffffL ? (int32_t) 0x7fffffffL : (int32_t) t); + + src += sstr / sizeof(int32_t); + dst += dstr / sizeof(int32_t); + } +} + +static void volscale_f32(void *_dst, size_t dstr, const void *_src, size_t sstr, int32_t factor, int32_t divisor, size_t size) { + float *dst = _dst; + const float *src = _src; + float f = (float) factor / (float) divisor; + + oil_scalarmult_f32(dst, dstr, src, sstr, &f, size / sizeof(float)); +} + +volscale_func_t get_volscale_func(sa_pcm_format_t f) { + + static const volscale_func_t funcs[SA_PCM_FORMAT_MAX] = { + [SA_PCM_FORMAT_U8] = volscale_u8, + [SA_PCM_FORMAT_S16_NE] = volscale_s16, + [SA_PCM_FORMAT_S32_NE] = volscale_s32, + [SA_PCM_FORMAT_FLOAT32_NE] = volscale_f32 + }; + + sa_assert(f < SA_PCM_FORMAT_MAX); + + return funcs[f]; +} diff --git a/volscale.h b/volscale.h new file mode 100644 index 0000000..ea812d0 --- /dev/null +++ b/volscale.h @@ -0,0 +1,13 @@ +#ifndef foosydneyvolscalehfoo +#define foosydneyvolscalehfoo + +#include <sys/types.h> +#include <inttypes.h> + +#include "sydney.h" + +typedef void (*volscale_func_t) (void *dst, size_t dstr, const void *src, size_t sstr, int32_t factor, int32_t divisor, size_t bytes); + +volscale_func_t get_volscale_func(sa_pcm_format_t f); + +#endif @@ -0,0 +1,53 @@ +#include <string.h> + +#include "macro.h" +#include "zero.h" + +static void zero_u8(void *dst, size_t dstr, size_t bytes) { + uint8_t *d = dst; + + if (dstr == 1) + memset(dst, 0x80, bytes); + else { + for (; bytes > 0; bytes --, d += dstr) + *d = 0x80; + } +} + +static void zero_16(void *dst, size_t dstr, size_t bytes) { + uint16_t *d = dst; + unsigned n = bytes/sizeof(uint16_t); + + if (dstr == sizeof(uint16_t)) + memset(dst, 0, bytes); + else { + for (; n > 0; n --, d += dstr/sizeof(uint16_t)) + *d = 0; + } +} + +static void zero_32(void *dst, size_t dstr, size_t bytes) { + uint32_t *d = dst; + unsigned n = bytes/sizeof(float); + + if (dstr == sizeof(uint32_t)) + memset(dst, 0, bytes); + else { + for (; n > 0; n --, d += dstr/sizeof(uint32_t)) + *d = 0; + } +} + +zero_func_t get_zero_func(sa_pcm_format_t f) { + + static const zero_func_t funcs[SA_PCM_FORMAT_MAX] = { + [SA_PCM_FORMAT_U8] = zero_u8, + [SA_PCM_FORMAT_S16_NE] = zero_16, + [SA_PCM_FORMAT_S32_NE] = zero_32, + [SA_PCM_FORMAT_FLOAT32_NE] = zero_32 + }; + + sa_assert(f < SA_PCM_FORMAT_MAX); + + return funcs[f]; +} @@ -0,0 +1,13 @@ +#ifndef foosydneyzerohfoo +#define foosydneyzerohfoo + +#include <sys/types.h> +#include <inttypes.h> + +#include "sydney.h" + +typedef void (*zero_func_t) (void *dst, size_t dstr, size_t bytes); + +zero_func_t get_zero_func(sa_pcm_format_t f); + +#endif |