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-rw-r--r--src/Makefile.am8
-rw-r--r--src/pulsecore/sample-util.c560
-rw-r--r--src/pulsecore/sample-util.h11
-rw-r--r--src/tests/mix-test.c261
4 files changed, 727 insertions, 113 deletions
diff --git a/src/Makefile.am b/src/Makefile.am
index 024988ba..8fe7be9d 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -239,7 +239,8 @@ noinst_PROGRAMS = \
rtpoll-test \
sig2str-test \
resampler-test \
- smoother-test
+ smoother-test \
+ mix-test
if HAVE_SIGXCPU
noinst_PROGRAMS += \
@@ -389,6 +390,11 @@ resampler_test_LDADD = $(AM_LDADD) libpulsecore.la
resampler_test_CFLAGS = $(AM_CFLAGS) $(LIBOIL_CFLAGS)
resampler_test_LDFLAGS = $(AM_LDFLAGS) $(BINLDFLAGS) $(LIBOIL_LIBS)
+mix_test_SOURCES = tests/mix-test.c
+mix_test_LDADD = $(AM_LDADD) libpulsecore.la
+mix_test_CFLAGS = $(AM_CFLAGS) $(LIBOIL_CFLAGS)
+mix_test_LDFLAGS = $(AM_LDFLAGS) $(BINLDFLAGS) $(LIBOIL_LIBS)
+
smoother_test_SOURCES = tests/smoother-test.c
smoother_test_LDADD = $(AM_LDADD) libpulsecore.la
smoother_test_CFLAGS = $(AM_CFLAGS)
diff --git a/src/pulsecore/sample-util.c b/src/pulsecore/sample-util.c
index 001a997e..4ea5d446 100644
--- a/src/pulsecore/sample-util.c
+++ b/src/pulsecore/sample-util.c
@@ -35,6 +35,7 @@
#include <pulsecore/log.h>
#include <pulsecore/macro.h>
+#include <pulsecore/g711.h>
#include "sample-util.h"
#include "endianmacros.h"
@@ -119,6 +120,58 @@ void pa_silence_memory(void *p, size_t length, const pa_sample_spec *spec) {
memset(p, c, length);
}
+static void calc_linear_integer_stream_volumes(pa_mix_info streams[], unsigned nstreams, const pa_sample_spec *spec) {
+ unsigned k;
+
+ pa_assert(streams);
+ pa_assert(spec);
+
+ for (k = 0; k < nstreams; k++) {
+ unsigned channel;
+
+ for (channel = 0; channel < spec->channels; channel++) {
+ pa_mix_info *m = streams + k;
+ m->linear[channel].i = (int32_t) (pa_sw_volume_to_linear(m->volume.values[channel]) * 0x10000);
+ }
+ }
+}
+
+static void calc_linear_integer_volume(int32_t linear[], const pa_cvolume *volume) {
+ unsigned channel;
+
+ pa_assert(linear);
+ pa_assert(volume);
+
+ for (channel = 0; channel < volume->channels; channel++)
+ linear[channel] = (int32_t) (pa_sw_volume_to_linear(volume->values[channel]) * 0x10000);
+}
+
+static void calc_linear_float_stream_volumes(pa_mix_info streams[], unsigned nstreams, const pa_sample_spec *spec) {
+ unsigned k;
+
+ pa_assert(streams);
+ pa_assert(spec);
+
+ for (k = 0; k < nstreams; k++) {
+ unsigned channel;
+
+ for (channel = 0; channel < spec->channels; channel++) {
+ pa_mix_info *m = streams + k;
+ m->linear[channel].f = pa_sw_volume_to_linear(m->volume.values[channel]);
+ }
+ }
+}
+
+static void calc_linear_float_volume(float linear[], const pa_cvolume *volume) {
+ unsigned channel;
+
+ pa_assert(linear);
+ pa_assert(volume);
+
+ for (channel = 0; channel < volume->channels; channel++)
+ linear[channel] = pa_sw_volume_to_linear(volume->values[channel]);
+}
+
size_t pa_mix(
pa_mix_info streams[],
unsigned nstreams,
@@ -126,11 +179,11 @@ size_t pa_mix(
size_t length,
const pa_sample_spec *spec,
const pa_cvolume *volume,
- int mute) {
+ pa_bool_t mute) {
pa_cvolume full_volume;
- size_t d = 0;
unsigned k;
+ size_t d = 0;
pa_assert(streams);
pa_assert(data);
@@ -141,50 +194,49 @@ size_t pa_mix(
volume = pa_cvolume_reset(&full_volume, spec->channels);
for (k = 0; k < nstreams; k++)
- streams[k].internal = pa_memblock_acquire(streams[k].chunk.memblock);
+ streams[k].ptr = (uint8_t*) pa_memblock_acquire(streams[k].chunk.memblock) + streams[k].chunk.index;
switch (spec->format) {
+
case PA_SAMPLE_S16NE:{
unsigned channel = 0;
+ int32_t linear[PA_CHANNELS_MAX];
+
+ calc_linear_integer_stream_volumes(streams, nstreams, spec);
+ calc_linear_integer_volume(linear, volume);
for (d = 0;; d += sizeof(int16_t)) {
int32_t sum = 0;
+ unsigned i;
- if (d >= length)
+ if (PA_UNLIKELY(d >= length))
goto finish;
- if (!mute && volume->values[channel] != PA_VOLUME_MUTED) {
- unsigned i;
-
- for (i = 0; i < nstreams; i++) {
- int32_t v;
- pa_volume_t cvolume = streams[i].volume.values[channel];
-
- if (d >= streams[i].chunk.length)
- goto finish;
-
- if (cvolume == PA_VOLUME_MUTED)
- v = 0;
- else {
- v = *((int16_t*) ((uint8_t*) streams[i].internal + streams[i].chunk.index + d));
+ for (i = 0; i < nstreams; i++) {
+ pa_mix_info *m = streams + i;
+ int32_t v, cv = m->linear[channel].i;
- if (cvolume != PA_VOLUME_NORM)
- v = (int32_t) (v * pa_sw_volume_to_linear(cvolume));
- }
+ if (PA_UNLIKELY(d >= m->chunk.length))
+ goto finish;
- sum += v;
+ if (PA_UNLIKELY(cv <= 0) || PA_UNLIKELY(!!mute) || PA_UNLIKELY(linear[channel] <= 0))
+ v = 0;
+ else {
+ v = *((int16_t*) m->ptr);
+ v = (v * cv) / 0x10000;
}
- if (volume->values[channel] != PA_VOLUME_NORM)
- sum = (int32_t) (sum * pa_sw_volume_to_linear(volume->values[channel]));
-
- sum = PA_CLAMP_UNLIKELY(sum, -0x8000, 0x7FFF);
+ sum += v;
+ m->ptr = (uint8_t*) m->ptr + sizeof(int16_t);
}
+ sum = PA_CLAMP_UNLIKELY(sum, -0x8000, 0x7FFF);
+ sum = (sum * linear[channel]) / 0x10000;
*((int16_t*) data) = (int16_t) sum;
+
data = (uint8_t*) data + sizeof(int16_t);
- if (++channel >= spec->channels)
+ if (PA_UNLIKELY(++channel >= spec->channels))
channel = 0;
}
@@ -193,45 +245,135 @@ size_t pa_mix(
case PA_SAMPLE_S16RE:{
unsigned channel = 0;
+ int32_t linear[PA_CHANNELS_MAX];
+
+ calc_linear_integer_stream_volumes(streams, nstreams, spec);
+ calc_linear_integer_volume(linear, volume);
for (d = 0;; d += sizeof(int16_t)) {
int32_t sum = 0;
+ unsigned i;
- if (d >= length)
+ if (PA_UNLIKELY(d >= length))
goto finish;
- if (!mute && volume->values[channel] != PA_VOLUME_MUTED) {
- unsigned i;
+ for (i = 0; i < nstreams; i++) {
+ pa_mix_info *m = streams + i;
+ int32_t v, cv = m->linear[channel].i;
+
+ if (PA_UNLIKELY(d >= m->chunk.length))
+ goto finish;
+
+ if (PA_UNLIKELY(cv <= 0) || PA_UNLIKELY(!!mute) || PA_UNLIKELY(linear[channel] <= 0))
+ v = 0;
+ else {
+ v = PA_INT16_SWAP(*((int16_t*) m->ptr));
+ v = (v * cv) / 0x10000;
+ }
+
+ sum += v;
+ m->ptr = (uint8_t*) m->ptr + sizeof(int16_t);
+ }
+
+ sum = PA_CLAMP_UNLIKELY(sum, -0x8000, 0x7FFF);
+ sum = (sum * linear[channel]) / 0x10000;
+ *((int16_t*) data) = PA_INT16_SWAP((int16_t) sum);
+
+ data = (uint8_t*) data + sizeof(int16_t);
+
+ if (PA_UNLIKELY(++channel >= spec->channels))
+ channel = 0;
+ }
+
+ break;
+ }
+
+ case PA_SAMPLE_S32NE:{
+ unsigned channel = 0;
+ int32_t linear[PA_CHANNELS_MAX];
+
+ calc_linear_integer_stream_volumes(streams, nstreams, spec);
+ calc_linear_integer_volume(linear, volume);
- for (i = 0; i < nstreams; i++) {
- int32_t v;
- pa_volume_t cvolume = streams[i].volume.values[channel];
+ for (d = 0;; d += sizeof(int32_t)) {
+ int64_t sum = 0;
+ unsigned i;
- if (d >= streams[i].chunk.length)
- goto finish;
+ if (PA_UNLIKELY(d >= length))
+ goto finish;
- if (cvolume == PA_VOLUME_MUTED)
- v = 0;
- else {
- v = PA_INT16_SWAP(*((int16_t*) ((uint8_t*) streams[i].internal + streams[i].chunk.index + d)));
+ for (i = 0; i < nstreams; i++) {
+ pa_mix_info *m = streams + i;
+ int64_t v;
+ int32_t cv = m->linear[channel].i;
- if (cvolume != PA_VOLUME_NORM)
- v = (int32_t) (v * pa_sw_volume_to_linear(cvolume));
- }
+ if (PA_UNLIKELY(d >= m->chunk.length))
+ goto finish;
- sum += v;
+ if (PA_UNLIKELY(cv <= 0) || PA_UNLIKELY(!!mute) || PA_UNLIKELY(linear[channel] <= 0))
+ v = 0;
+ else {
+ v = *((int32_t*) m->ptr);
+ v = (v * cv) / 0x10000;
}
- if (volume->values[channel] != PA_VOLUME_NORM)
- sum = (int32_t) (sum * pa_sw_volume_to_linear(volume->values[channel]));
+ sum += v;
+ m->ptr = (uint8_t*) m->ptr + sizeof(int32_t);
+ }
+
+ sum = PA_CLAMP_UNLIKELY(sum, -0x80000000LL, 0x7FFFFFFFLL);
+ sum = (sum * linear[channel]) / 0x10000;
+ *((int32_t*) data) = (int32_t) sum;
+
+ data = (uint8_t*) data + sizeof(int32_t);
+
+ if (PA_UNLIKELY(++channel >= spec->channels))
+ channel = 0;
+ }
+
+ break;
+ }
+
+ case PA_SAMPLE_S32RE:{
+ unsigned channel = 0;
+ int32_t linear[PA_CHANNELS_MAX];
+
+ calc_linear_integer_stream_volumes(streams, nstreams, spec);
+ calc_linear_integer_volume(linear, volume);
+
+ for (d = 0;; d += sizeof(int32_t)) {
+ int64_t sum = 0;
+ unsigned i;
+
+ if (PA_UNLIKELY(d >= length))
+ goto finish;
+
+ for (i = 0; i < nstreams; i++) {
+ pa_mix_info *m = streams + i;
+ int64_t v;
+ int32_t cv = m->linear[channel].i;
+
+ if (PA_UNLIKELY(d >= m->chunk.length))
+ goto finish;
+
+ if (PA_UNLIKELY(cv <= 0) || PA_UNLIKELY(!!mute) || PA_UNLIKELY(linear[channel] <= 0))
+ v = 0;
+ else {
+ v = PA_INT32_SWAP(*((int32_t*) m->ptr));
+ v = (v * cv) / 0x10000;
+ }
- sum = PA_CLAMP_UNLIKELY(sum, -0x8000, 0x7FFF);
+ sum += v;
+ m->ptr = (uint8_t*) m->ptr + sizeof(int32_t);
}
- *((int16_t*) data) = PA_INT16_SWAP((int16_t) sum);
- data = (uint8_t*) data + sizeof(int16_t);
+ sum = PA_CLAMP_UNLIKELY(sum, -0x80000000LL, 0x7FFFFFFFLL);
+ sum = (sum * linear[channel]) / 0x10000;
+ *((int32_t*) data) = PA_INT32_SWAP((int32_t) sum);
+
+ data = (uint8_t*) data + sizeof(int32_t);
- if (++channel >= spec->channels)
+ if (PA_UNLIKELY(++channel >= spec->channels))
channel = 0;
}
@@ -240,45 +382,133 @@ size_t pa_mix(
case PA_SAMPLE_U8: {
unsigned channel = 0;
+ int32_t linear[PA_CHANNELS_MAX];
+
+ calc_linear_integer_stream_volumes(streams, nstreams, spec);
+ calc_linear_integer_volume(linear, volume);
for (d = 0;; d ++) {
int32_t sum = 0;
+ unsigned i;
- if (d >= length)
+ if (PA_UNLIKELY(d >= length))
goto finish;
- if (!mute && volume->values[channel] != PA_VOLUME_MUTED) {
- unsigned i;
+ for (i = 0; i < nstreams; i++) {
+ pa_mix_info *m = streams + i;
+ int32_t v, cv = m->linear[channel].i;
+
+ if (PA_UNLIKELY(d >= m->chunk.length))
+ goto finish;
+
+ if (PA_UNLIKELY(cv <= 0) || PA_UNLIKELY(!!mute) || PA_UNLIKELY(linear[channel] <= 0))
+ v = 0;
+ else {
+ v = (int32_t) *((uint8_t*) m->ptr) - 0x80;
+ v = (v * cv) / 0x10000;
+ }
+
+ sum += v;
+ m->ptr = (uint8_t*) m->ptr + 1;
+ }
+
+ sum = (sum * linear[channel]) / 0x10000;
+ sum = PA_CLAMP_UNLIKELY(sum, -0x80, 0x7F);
+ *((uint8_t*) data) = (uint8_t) (sum + 0x80);
+
+ data = (uint8_t*) data + 1;
+
+ if (PA_UNLIKELY(++channel >= spec->channels))
+ channel = 0;
+ }
+
+ break;
+ }
+
+ case PA_SAMPLE_ULAW: {
+ unsigned channel = 0;
+ int32_t linear[PA_CHANNELS_MAX];
- for (i = 0; i < nstreams; i++) {
- int32_t v;
- pa_volume_t cvolume = streams[i].volume.values[channel];
+ calc_linear_integer_stream_volumes(streams, nstreams, spec);
+ calc_linear_integer_volume(linear, volume);
- if (d >= streams[i].chunk.length)
- goto finish;
+ for (d = 0;; d ++) {
+ int32_t sum = 0;
+ unsigned i;
- if (cvolume == PA_VOLUME_MUTED)
- v = 0;
- else {
- v = (int32_t) *((uint8_t*) streams[i].internal + streams[i].chunk.index + d) - 0x80;
+ if (PA_UNLIKELY(d >= length))
+ goto finish;
+
+ for (i = 0; i < nstreams; i++) {
+ pa_mix_info *m = streams + i;
+ int32_t v, cv = m->linear[channel].i;
- if (cvolume != PA_VOLUME_NORM)
- v = (int32_t) (v * pa_sw_volume_to_linear(cvolume));
- }
+ if (PA_UNLIKELY(d >= m->chunk.length))
+ goto finish;
- sum += v;
+ if (PA_UNLIKELY(cv <= 0) || PA_UNLIKELY(!!mute) || PA_UNLIKELY(linear[channel] <= 0))
+ v = 0;
+ else {
+ v = (int32_t) st_ulaw2linear16(*((uint8_t*) m->ptr));
+ v = (v * cv) / 0x10000;
}
- if (volume->values[channel] != PA_VOLUME_NORM)
- sum = (int32_t) (sum * pa_sw_volume_to_linear(volume->values[channel]));
+ sum += v;
+ m->ptr = (uint8_t*) m->ptr + 1;
+ }
+
+ sum = PA_CLAMP_UNLIKELY(sum, -0x8000, 0x7FFF);
+ sum = (sum * linear[channel]) / 0x10000;
+ *((uint8_t*) data) = (uint8_t) st_14linear2ulaw(sum >> 2);
+
+ data = (uint8_t*) data + 1;
+
+ if (PA_UNLIKELY(++channel >= spec->channels))
+ channel = 0;
+ }
+
+ break;
+ }
+
+ case PA_SAMPLE_ALAW: {
+ unsigned channel = 0;
+ int32_t linear[PA_CHANNELS_MAX];
+
+ calc_linear_integer_stream_volumes(streams, nstreams, spec);
+ calc_linear_integer_volume(linear, volume);
+
+ for (d = 0;; d ++) {
+ int32_t sum = 0;
+ unsigned i;
+
+ if (PA_UNLIKELY(d >= length))
+ goto finish;
+
+ for (i = 0; i < nstreams; i++) {
+ pa_mix_info *m = streams + i;
+ int32_t v, cv = m->linear[channel].i;
- sum = PA_CLAMP_UNLIKELY(sum, -0x80, 0x7F);
+ if (PA_UNLIKELY(d >= m->chunk.length))
+ goto finish;
+
+ if (PA_UNLIKELY(cv <= 0) || PA_UNLIKELY(!!mute) || PA_UNLIKELY(linear[channel] <= 0))
+ v = 0;
+ else {
+ v = (int32_t) st_alaw2linear16(*((uint8_t*) m->ptr));
+ v = (v * cv) / 0x10000;
+ }
+
+ sum += v;
+ m->ptr = (uint8_t*) m->ptr + 1;
}
- *((uint8_t*) data) = (uint8_t) (sum + 0x80);
+ sum = PA_CLAMP_UNLIKELY(sum, -0x8000, 0x7FFF);
+ sum = (sum * linear[channel]) / 0x10000;
+ *((uint8_t*) data) = (uint8_t) st_13linear2alaw(sum >> 3);
+
data = (uint8_t*) data + 1;
- if (++channel >= spec->channels)
+ if (PA_UNLIKELY(++channel >= spec->channels))
channel = 0;
}
@@ -287,43 +517,88 @@ size_t pa_mix(
case PA_SAMPLE_FLOAT32NE: {
unsigned channel = 0;
+ float linear[PA_CHANNELS_MAX];
+
+ calc_linear_float_stream_volumes(streams, nstreams, spec);
+ calc_linear_float_volume(linear, volume);
for (d = 0;; d += sizeof(float)) {
float sum = 0;
+ unsigned i;
- if (d >= length)
+ if (PA_UNLIKELY(d >= length))
goto finish;
- if (!mute && volume->values[channel] != PA_VOLUME_MUTED) {
- unsigned i;
+ for (i = 0; i < nstreams; i++) {
+ pa_mix_info *m = streams + i;
+ float v, cv = m->linear[channel].f;
+
+ if (PA_UNLIKELY(d >= m->chunk.length))
+ goto finish;
+
+ if (PA_UNLIKELY(cv <= 0) || PA_UNLIKELY(!!mute) || PA_UNLIKELY(linear[channel] <= 0))
+ v = 0;
+ else {
+ v = *((float*) m->ptr);
+ v *= cv;
+ }
+
+ sum += v;
+ m->ptr = (uint8_t*) m->ptr + sizeof(float);
+ }
+
+ sum *= linear[channel];
+ *((float*) data) = sum;
- for (i = 0; i < nstreams; i++) {
- float v;
- pa_volume_t cvolume = streams[i].volume.values[channel];
+ data = (uint8_t*) data + sizeof(float);
+
+ if (PA_UNLIKELY(++channel >= spec->channels))
+ channel = 0;
+ }
+
+ break;
+ }
+
+ case PA_SAMPLE_FLOAT32RE: {
+ unsigned channel = 0;
+ float linear[PA_CHANNELS_MAX];
+
+ calc_linear_float_stream_volumes(streams, nstreams, spec);
+ calc_linear_float_volume(linear, volume);
+
+ for (d = 0;; d += sizeof(float)) {
+ float sum = 0;
+ unsigned i;
- if (d >= streams[i].chunk.length)
- goto finish;
+ if (PA_UNLIKELY(d >= length))
+ goto finish;
- if (cvolume == PA_VOLUME_MUTED)
- v = 0;
- else {
- v = *((float*) ((uint8_t*) streams[i].internal + streams[i].chunk.index + d));
+ for (i = 0; i < nstreams; i++) {
+ pa_mix_info *m = streams + i;
+ float v, cv = m->linear[channel].f;
- if (cvolume != PA_VOLUME_NORM)
- v *= pa_sw_volume_to_linear(cvolume);
- }
+ if (PA_UNLIKELY(d >= m->chunk.length))
+ goto finish;
- sum += v;
+ if (PA_UNLIKELY(cv <= 0) || PA_UNLIKELY(!!mute) || PA_UNLIKELY(linear[channel] <= 0))
+ v = 0;
+ else {
+ uint32_t z = *(uint32_t*) m->ptr;
+ z = PA_UINT32_SWAP(z);
+ v = *((float*) &z);
+ v *= cv;
}
- if (volume->values[channel] != PA_VOLUME_NORM)
- sum *= pa_sw_volume_to_linear(volume->values[channel]);
+ sum += v;
+ m->ptr = (uint8_t*) m->ptr + sizeof(float);
}
- *((float*) data) = sum;
+ sum *= linear[channel];
+ *((uint32_t*) data) = PA_UINT32_SWAP(*(uint32_t*) &sum);
+
data = (uint8_t*) data + sizeof(float);
- if (++channel >= spec->channels)
+ if (PA_UNLIKELY(++channel >= spec->channels))
channel = 0;
}
@@ -332,7 +607,7 @@ size_t pa_mix(
default:
pa_log_error("ERROR: Unable to mix audio data of format %s.", pa_sample_format_to_string(spec->format));
- abort();
+ pa_assert_not_reached();
}
finish:
@@ -364,7 +639,7 @@ void pa_volume_memchunk(
return;
}
- ptr = pa_memblock_acquire(c->memblock);
+ ptr = (uint8_t*) pa_memblock_acquire(c->memblock) + c->index;
switch (spec->format) {
@@ -374,10 +649,9 @@ void pa_volume_memchunk(
unsigned channel;
int32_t linear[PA_CHANNELS_MAX];
- for (channel = 0; channel < spec->channels; channel++)
- linear[channel] = (int32_t) (pa_sw_volume_to_linear(volume->values[channel]) * 0x10000);
+ calc_linear_integer_volume(linear, volume);
- for (channel = 0, d = (int16_t*) ((uint8_t*) ptr + c->index), n = c->length/sizeof(int16_t); n > 0; d++, n--) {
+ for (channel = 0, d = ptr, n = c->length/sizeof(int16_t); n > 0; d++, n--) {
int32_t t;
t = (int32_t)(*d);
@@ -397,10 +671,9 @@ void pa_volume_memchunk(
unsigned channel;
int32_t linear[PA_CHANNELS_MAX];
- for (channel = 0; channel < spec->channels; channel++)
- linear[channel] = (int32_t) (pa_sw_volume_to_linear(volume->values[channel]) * 0x10000);
+ calc_linear_integer_volume(linear, volume);
- for (channel = 0, d = (int16_t*) ((uint8_t*) ptr + c->index), n = c->length/sizeof(int16_t); n > 0; d++, n--) {
+ for (channel = 0, d = ptr, n = c->length/sizeof(int16_t); n > 0; d++, n--) {
int32_t t;
t = (int32_t)(PA_INT16_SWAP(*d));
@@ -421,10 +694,9 @@ void pa_volume_memchunk(
unsigned channel;
int32_t linear[PA_CHANNELS_MAX];
- for (channel = 0; channel < spec->channels; channel++)
- linear[channel] = (int32_t) (pa_sw_volume_to_linear(volume->values[channel]) * 0x10000);
+ calc_linear_integer_volume(linear, volume);
- for (channel = 0, d = (int32_t*) ((uint8_t*) ptr + c->index), n = c->length/sizeof(int32_t); n > 0; d++, n--) {
+ for (channel = 0, d = ptr, n = c->length/sizeof(int32_t); n > 0; d++, n--) {
int64_t t;
t = (int64_t)(*d);
@@ -444,10 +716,9 @@ void pa_volume_memchunk(
unsigned channel;
int32_t linear[PA_CHANNELS_MAX];
- for (channel = 0; channel < spec->channels; channel++)
- linear[channel] = (int32_t) (pa_sw_volume_to_linear(volume->values[channel]) * 0x10000);
+ calc_linear_integer_volume(linear, volume);
- for (channel = 0, d = (int32_t*) ((uint8_t*) ptr + c->index), n = c->length/sizeof(int32_t); n > 0; d++, n--) {
+ for (channel = 0, d = ptr, n = c->length/sizeof(int32_t); n > 0; d++, n--) {
int64_t t;
t = (int64_t)(PA_INT32_SWAP(*d));
@@ -468,10 +739,9 @@ void pa_volume_memchunk(
unsigned channel;
int32_t linear[PA_CHANNELS_MAX];
- for (channel = 0; channel < spec->channels; channel++)
- linear[channel] = (int32_t) (pa_sw_volume_to_linear(volume->values[channel]) * 0x10000);
+ calc_linear_integer_volume(linear, volume);
- for (channel = 0, d = (uint8_t*) ptr + c->index, n = c->length; n > 0; d++, n--) {
+ for (channel = 0, d = ptr, n = c->length; n > 0; d++, n--) {
int32_t t;
t = (int32_t) *d - 0x80;
@@ -485,20 +755,64 @@ void pa_volume_memchunk(
break;
}
+ case PA_SAMPLE_ULAW: {
+ uint8_t *d;
+ size_t n;
+ unsigned channel;
+ int32_t linear[PA_CHANNELS_MAX];
+
+ calc_linear_integer_volume(linear, volume);
+
+ for (channel = 0, d = ptr, n = c->length; n > 0; d++, n--) {
+ int32_t t;
+
+ t = (int32_t) st_ulaw2linear16(*d);
+ t = (t * linear[channel]) / 0x10000;
+ t = PA_CLAMP_UNLIKELY(t, -0x8000, 0x7FFF);
+ *d = (uint8_t) st_14linear2ulaw(t >> 2);
+
+ if (PA_UNLIKELY(++channel >= spec->channels))
+ channel = 0;
+ }
+ break;
+ }
+
+ case PA_SAMPLE_ALAW: {
+ uint8_t *d;
+ size_t n;
+ unsigned channel;
+ int32_t linear[PA_CHANNELS_MAX];
+
+ calc_linear_integer_volume(linear, volume);
+
+ for (channel = 0, d = ptr, n = c->length; n > 0; d++, n--) {
+ int32_t t;
+
+ t = (int32_t) st_alaw2linear16(*d);
+ t = (t * linear[channel]) / 0x10000;
+ t = PA_CLAMP_UNLIKELY(t, -0x8000, 0x7FFF);
+ *d = (uint8_t) st_13linear2alaw(t >> 3);
+
+ if (PA_UNLIKELY(++channel >= spec->channels))
+ channel = 0;
+ }
+ break;
+ }
+
case PA_SAMPLE_FLOAT32NE: {
float *d;
int skip;
unsigned n;
unsigned channel;
- d = (float*) ((uint8_t*) ptr + c->index);
+ d = ptr;
skip = spec->channels * sizeof(float);
n = c->length/sizeof(float)/spec->channels;
- for (channel = 0; channel < spec->channels ; channel ++) {
+ for (channel = 0; channel < spec->channels; channel ++) {
float v, *t;
- if (volume->values[channel] == PA_VOLUME_NORM)
+ if (PA_UNLIKELY(volume->values[channel] == PA_VOLUME_NORM))
continue;
v = (float) pa_sw_volume_to_linear(volume->values[channel]);
@@ -508,6 +822,32 @@ void pa_volume_memchunk(
break;
}
+ case PA_SAMPLE_FLOAT32RE: {
+ uint32_t *d;
+ size_t n;
+ unsigned channel;
+ float linear[PA_CHANNELS_MAX];
+
+ calc_linear_float_volume(linear, volume);
+
+ for (channel = 0, d = ptr, n = c->length/sizeof(float); n > 0; d++, n--) {
+ float t;
+ uint32_t z;
+
+ z = PA_UINT32_SWAP(*d);
+ t = *(float*) &z;
+ t *= linear[channel];
+ z = *(uint32_t*) &t;
+ *d = PA_UINT32_SWAP(z);
+
+ if (PA_UNLIKELY(++channel >= spec->channels))
+ channel = 0;
+ }
+
+ break;
+ }
+
+
default:
pa_log_warn(" Unable to change volume of format %s.", pa_sample_format_to_string(spec->format));
/* If we cannot change the volume, we just don't do it */
diff --git a/src/pulsecore/sample-util.h b/src/pulsecore/sample-util.h
index 0a39d5ca..2ef8f924 100644
--- a/src/pulsecore/sample-util.h
+++ b/src/pulsecore/sample-util.h
@@ -39,7 +39,14 @@ typedef struct pa_mix_info {
pa_memchunk chunk;
pa_cvolume volume;
void *userdata;
- void *internal; /* Used internally by pa_mix(), should not be initialised when calling pa_mix() */
+
+ /* The following fields are used internally by pa_mix(), should
+ * not be initialised by the caller of pa_mix(). */
+ void *ptr;
+ union {
+ int32_t i;
+ float f;
+ } linear[PA_CHANNELS_MAX];
} pa_mix_info;
size_t pa_mix(
@@ -49,7 +56,7 @@ size_t pa_mix(
size_t length,
const pa_sample_spec *spec,
const pa_cvolume *volume,
- int mute);
+ pa_bool_t mute);
void pa_volume_memchunk(
pa_memchunk*c,
diff --git a/src/tests/mix-test.c b/src/tests/mix-test.c
new file mode 100644
index 00000000..d07b1b0c
--- /dev/null
+++ b/src/tests/mix-test.c
@@ -0,0 +1,261 @@
+/* $Id: resampler-test.c 2037 2007-11-09 02:45:07Z lennart $ */
+
+/***
+ This file is part of PulseAudio.
+
+ PulseAudio is free software; you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2 of the License,
+ or (at your option) any later version.
+
+ PulseAudio is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with PulseAudio; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
+ USA.
+***/
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <stdio.h>
+
+#include <pulse/sample.h>
+#include <pulse/volume.h>
+
+#include <pulsecore/resampler.h>
+#include <pulsecore/macro.h>
+#include <pulsecore/endianmacros.h>
+#include <pulsecore/memblock.h>
+#include <pulsecore/sample-util.h>
+
+#include <liboil/liboil.h>
+
+static float swap_float(float a) {
+ uint32_t *b = (uint32_t*) &a;
+ *b = PA_UINT32_SWAP(*b);
+ return a;
+}
+
+static void dump_block(const pa_sample_spec *ss, const pa_memchunk *chunk) {
+ void *d;
+ unsigned i;
+
+ d = pa_memblock_acquire(chunk->memblock);
+
+ switch (ss->format) {
+
+ case PA_SAMPLE_U8:
+ case PA_SAMPLE_ULAW:
+ case PA_SAMPLE_ALAW: {
+ uint8_t *u = d;
+
+ for (i = 0; i < chunk->length / pa_frame_size(ss); i++)
+ printf("0x%02x ", *(u++));
+
+ break;
+ }
+
+ case PA_SAMPLE_S16NE:
+ case PA_SAMPLE_S16RE: {
+ uint16_t *u = d;
+
+ for (i = 0; i < chunk->length / pa_frame_size(ss); i++)
+ printf("0x%04x ", *(u++));
+
+ break;
+ }
+
+ case PA_SAMPLE_S32NE:
+ case PA_SAMPLE_S32RE: {
+ uint32_t *u = d;
+
+ for (i = 0; i < chunk->length / pa_frame_size(ss); i++)
+ printf("0x%08x ", *(u++));
+
+ break;
+ }
+
+ case PA_SAMPLE_FLOAT32NE:
+ case PA_SAMPLE_FLOAT32RE: {
+ float *u = d;
+
+ for (i = 0; i < chunk->length / pa_frame_size(ss); i++) {
+ printf("%1.5f ", ss->format == PA_SAMPLE_FLOAT32NE ? *u : swap_float(*u));
+ u++;
+ }
+
+ break;
+ }
+
+ default:
+ pa_assert_not_reached();
+ }
+
+ printf("\n");
+
+ pa_memblock_release(chunk->memblock);
+}
+
+static pa_memblock* generate_block(pa_mempool *pool, const pa_sample_spec *ss) {
+ pa_memblock *r;
+ void *d;
+ unsigned i;
+
+ pa_assert_se(r = pa_memblock_new(pool, pa_frame_size(ss) * 10));
+ d = pa_memblock_acquire(r);
+
+ switch (ss->format) {
+
+ case PA_SAMPLE_U8:
+ case PA_SAMPLE_ULAW:
+ case PA_SAMPLE_ALAW: {
+ uint8_t *u = d;
+
+ u[0] = 0x00;
+ u[1] = 0xFF;
+ u[2] = 0x7F;
+ u[3] = 0x80;
+ u[4] = 0x9f;
+ u[5] = 0x3f;
+ u[6] = 0x1;
+ u[7] = 0xF0;
+ u[8] = 0x20;
+ u[9] = 0x21;
+ break;
+ }
+
+ case PA_SAMPLE_S16NE:
+ case PA_SAMPLE_S16RE: {
+ uint16_t *u = d;
+
+ u[0] = 0x0000;
+ u[1] = 0xFFFF;
+ u[2] = 0x7FFF;
+ u[3] = 0x8000;
+ u[4] = 0x9fff;
+ u[5] = 0x3fff;
+ u[6] = 0x1;
+ u[7] = 0xF000;
+ u[8] = 0x20;
+ u[9] = 0x21;
+ break;
+ }
+
+ case PA_SAMPLE_S32NE:
+ case PA_SAMPLE_S32RE: {
+ uint32_t *u = d;
+
+ u[0] = 0x00000001;
+ u[1] = 0xFFFF0002;
+ u[2] = 0x7FFF0003;
+ u[3] = 0x80000004;
+ u[4] = 0x9fff0005;
+ u[5] = 0x3fff0006;
+ u[6] = 0x10007;
+ u[7] = 0xF0000008;
+ u[8] = 0x200009;
+ u[9] = 0x21000A;
+ break;
+ }
+
+ case PA_SAMPLE_FLOAT32NE:
+ case PA_SAMPLE_FLOAT32RE: {
+ float *u = d;
+
+ u[0] = 0.0;
+ u[1] = -1.0;
+ u[2] = 1.0;
+ u[3] = 4711;
+ u[4] = 0.222;
+ u[5] = 0.33;
+ u[6] = -.3;
+ u[7] = 99;
+ u[8] = -0.555;
+ u[9] = -.123;
+
+ if (ss->format == PA_SAMPLE_FLOAT32RE)
+ for (i = 0; i < 10; i++)
+ u[i] = swap_float(u[i]);
+
+ break;
+ }
+
+ default:
+ pa_assert_not_reached();
+ }
+
+ pa_memblock_release(r);
+
+ return r;
+}
+
+int main(int argc, char *argv[]) {
+ pa_mempool *pool;
+ pa_sample_spec a;
+ pa_cvolume v;
+
+ oil_init();
+ pa_log_set_maximal_level(PA_LOG_DEBUG);
+
+ pa_assert_se(pool = pa_mempool_new(FALSE));
+
+ a.channels = 1;
+ a.rate = 44100;
+
+ v.channels = a.channels;
+ v.values[0] = pa_sw_volume_from_linear(0.9);
+
+ for (a.format = 0; a.format < PA_SAMPLE_MAX; a.format ++) {
+ pa_memchunk i, j, k;
+ pa_mix_info m[2];
+ void *ptr;
+
+ printf("=== mixing: %s\n", pa_sample_format_to_string(a.format));
+
+ /* Generate block */
+ i.memblock = generate_block(pool, &a);
+ i.length = pa_memblock_get_length(i.memblock);
+ i.index = 0;
+
+ /* Make a copy */
+ j = i;
+ pa_memblock_ref(j.memblock);
+ pa_memchunk_make_writable(&j, 0);
+
+ /* Adjust volume of the copy */
+ pa_volume_memchunk(&j, &a, &v);
+
+ m[0].chunk = i;
+ m[0].volume.values[0] = PA_VOLUME_NORM;
+ m[0].volume.channels = a.channels;
+ m[1].chunk = j;
+ m[1].volume.values[0] = PA_VOLUME_NORM;
+ m[1].volume.channels = a.channels;
+
+ k.memblock = pa_memblock_new(pool, i.length);
+ k.length = i.length;
+ k.index = 0;
+
+ ptr = (uint8_t*) pa_memblock_acquire(k.memblock) + k.index;
+ pa_mix(m, 2, ptr, k.length, &a, NULL, FALSE);
+ pa_memblock_release(k.memblock);
+
+ dump_block(&a, &i);
+ dump_block(&a, &j);
+ dump_block(&a, &k);
+
+ pa_memblock_unref(i.memblock);
+ pa_memblock_unref(j.memblock);
+ pa_memblock_unref(k.memblock);
+ }
+
+ pa_mempool_free(pool);
+
+ return 0;
+}