From a64e85acf96bc0c55363fe55c9e9116aef2a8584 Mon Sep 17 00:00:00 2001 From: Lennart Poettering Date: Sat, 12 May 2007 23:38:38 +0000 Subject: resampling works git-svn-id: file:///home/lennart/svn/public/libsydney/trunk@4 9ba3c220-e4d3-45a2-8aa3-73fcc9aff6ce --- Makefile | 20 +- TODO | 3 +- add.c | 55 + add.h | 13 + bbuffer.c | 77 ++ bbuffer.h | 19 + byteswap.c | 57 ++ byteswap.h | 12 + common.c | 450 ++++++--- common.h | 37 +- continued-fraction.c | 69 ++ continued-fraction.h | 6 + converter.c | 739 ++++++++++++++ converter.h | 81 ++ driver.h | 13 +- format.c | 439 ++++++++ format.h | 13 + g711.c | 2531 +++++++++++++++++++++++++++++++++++++++++++++++ g711.h | 40 + interleave.c | 64 ++ interleave.h | 12 + macro.h | 13 +- malloc.c | 2 +- malloc.h | 5 +- meta-name-table.gperf | 10 + meta-name-table.h | 123 +++ oss.c | 192 ++-- resample.c | 172 +--- resample.h | 14 + speex/arch.h | 197 ++++ speex/resample.c | 1080 ++++++++++++++++++++ speex/speex_resampler.h | 328 ++++++ sydney.h | 55 +- test-sine.c | 21 +- volscale.c | 67 ++ volscale.h | 13 + zero.c | 53 + zero.h | 13 + 38 files changed, 6713 insertions(+), 395 deletions(-) create mode 100644 add.c create mode 100644 add.h create mode 100644 bbuffer.c create mode 100644 bbuffer.h create mode 100644 byteswap.c create mode 100644 byteswap.h create mode 100644 continued-fraction.c create mode 100644 continued-fraction.h create mode 100644 converter.c create mode 100644 converter.h create mode 100644 format.c create mode 100644 format.h create mode 100644 g711.c create mode 100644 g711.h create mode 100644 interleave.c create mode 100644 interleave.h create mode 100644 meta-name-table.gperf create mode 100644 meta-name-table.h create mode 100644 resample.h create mode 100644 speex/arch.h create mode 100644 speex/resample.c create mode 100644 speex/speex_resampler.h create mode 100644 volscale.c create mode 100644 volscale.h create mode 100644 zero.c create mode 100644 zero.h diff --git a/Makefile b/Makefile index ab247e0..96700a7 100644 --- a/Makefile +++ b/Makefile @@ -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 \{\} \; diff --git a/TODO b/TODO index 3186ba6..03c9498 100644 --- a/TODO +++ b/TODO @@ -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? diff --git a/add.c b/add.c new file mode 100644 index 0000000..93c49fd --- /dev/null +++ b/add.c @@ -0,0 +1,55 @@ +#include + +#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]; +} diff --git a/add.h b/add.h new file mode 100644 index 0000000..35e6bee --- /dev/null +++ b/add.h @@ -0,0 +1,13 @@ +#ifndef foosydneyaddhfoo +#define foosydneyaddhfoo + +#include +#include + +#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 + +#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 + +/* 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 + +#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 + +#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 diff --git a/common.c b/common.c index b7a92d7..ea9858c 100644 --- a/common.c +++ b/common.c @@ -1,40 +1,135 @@ +#include +#include +#include + #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]; } diff --git a/common.h b/common.h index 1500ef1..16050df 100644 --- a/common.h +++ b/common.h @@ -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 + */ + +#include +#include + +#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 +#include + +#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 diff --git a/driver.h b/driver.h index 49bebbd..0eee0ed 100644 --- a/driver.h +++ b/driver.h @@ -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 +#include +#include + +#include + +#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 + +#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 diff --git a/g711.c b/g711.c new file mode 100644 index 0000000..55a8239 --- /dev/null +++ b/g711.c @@ -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, 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-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, + 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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 +}; + +#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 diff --git a/g711.h b/g711.h new file mode 100644 index 0000000..9b2582d --- /dev/null +++ b/g711.h @@ -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 + +#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 + +#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 + +#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 diff --git a/macro.h b/macro.h index d2edead..368555d 100644 --- a/macro.h +++ b/macro.h @@ -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 diff --git a/malloc.c b/malloc.c index 080eb2f..6a89554 100644 --- a/malloc.c +++ b/malloc.c @@ -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); diff --git a/malloc.h b/malloc.h index df459ed..d9dcee9 100644 --- a/malloc.h +++ b/malloc.h @@ -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 ." +#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; +} diff --git a/oss.c b/oss.c index f39571c..7b351ae 100644 --- a/oss.c +++ b/oss.c @@ -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; } diff --git a/resample.c b/resample.c index f69e6d6..292f891 100644 --- a/resample.c +++ b/resample.c @@ -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 +#include + +#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 +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 + +#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 +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 (;jsinc_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 (;jsinc_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 (;jin_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 (;jin_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;iden_rate;i++) + { + spx_uint32_t j; + for (j=0;jfilt_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;inb_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;inb_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;jmagic_samples[i];j++) + st->mem[i*st->mem_alloc_size+j] = 0; + st->magic_samples[i] = 0; + } + /* Copy data going backward */ + for (j=0;jmem[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 (;jfilt_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;inb_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;jfilt_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;ilast_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;imagic_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;jin_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;iin_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;iout_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;iin_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;iout_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;inb_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;inb_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;inb_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;inb_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 diff --git a/sydney.h b/sydney.h index 7f70add..ecb10bc 100644 --- a/sydney.h +++ b/sydney.h @@ -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 +#include #include +#include #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 + +#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 +#include + +#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 diff --git a/zero.c b/zero.c new file mode 100644 index 0000000..b2b20be --- /dev/null +++ b/zero.c @@ -0,0 +1,53 @@ +#include + +#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]; +} diff --git a/zero.h b/zero.h new file mode 100644 index 0000000..2e76d90 --- /dev/null +++ b/zero.h @@ -0,0 +1,13 @@ +#ifndef foosydneyzerohfoo +#define foosydneyzerohfoo + +#include +#include + +#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 -- cgit