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-rw-r--r--src/pulsecore/sample-util.c560
1 files changed, 450 insertions, 110 deletions
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 */
generated by cgit (git 2.34.1) at 2025-11-04 00:51:56 +0000