summaryrefslogtreecommitdiffstats
path: root/src/pulsecore/sample-util.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/pulsecore/sample-util.c')
-rw-r--r--src/pulsecore/sample-util.c791
1 files changed, 637 insertions, 154 deletions
diff --git a/src/pulsecore/sample-util.c b/src/pulsecore/sample-util.c
index 21771302..b42b79d1 100644
--- a/src/pulsecore/sample-util.c
+++ b/src/pulsecore/sample-util.c
@@ -1,5 +1,3 @@
-/* $Id$ */
-
/***
This file is part of PulseAudio.
@@ -35,35 +33,13 @@
#include <pulsecore/log.h>
#include <pulsecore/macro.h>
+#include <pulsecore/g711.h>
#include "sample-util.h"
#include "endianmacros.h"
#define PA_SILENCE_MAX (PA_PAGE_SIZE*16)
-pa_memblock *pa_silence_memblock_new(pa_mempool *pool, const pa_sample_spec *spec, size_t length) {
- size_t fs;
- pa_assert(pool);
- pa_assert(spec);
-
- if (length <= 0)
- length = pa_bytes_per_second(spec)/20; /* 50 ms */
-
- if (length > PA_SILENCE_MAX)
- length = PA_SILENCE_MAX;
-
- fs = pa_frame_size(spec);
-
- length = (length+fs-1)/fs;
-
- if (length <= 0)
- length = 1;
-
- length *= fs;
-
- return pa_silence_memblock(pa_memblock_new(pool, length), spec);
-}
-
pa_memblock *pa_silence_memblock(pa_memblock* b, const pa_sample_spec *spec) {
void *data;
@@ -73,10 +49,11 @@ pa_memblock *pa_silence_memblock(pa_memblock* b, const pa_sample_spec *spec) {
data = pa_memblock_acquire(b);
pa_silence_memory(data, pa_memblock_get_length(b), spec);
pa_memblock_release(b);
+
return b;
}
-void pa_silence_memchunk(pa_memchunk *c, const pa_sample_spec *spec) {
+pa_memchunk* pa_silence_memchunk(pa_memchunk *c, const pa_sample_spec *spec) {
void *data;
pa_assert(c);
@@ -86,35 +63,90 @@ void pa_silence_memchunk(pa_memchunk *c, const pa_sample_spec *spec) {
data = pa_memblock_acquire(c->memblock);
pa_silence_memory((uint8_t*) data+c->index, c->length, spec);
pa_memblock_release(c->memblock);
-}
-void pa_silence_memory(void *p, size_t length, const pa_sample_spec *spec) {
- uint8_t c = 0;
- pa_assert(p);
- pa_assert(length > 0);
- pa_assert(spec);
+ return c;
+}
- switch (spec->format) {
+static uint8_t silence_byte(pa_sample_format_t format) {
+ switch (format) {
case PA_SAMPLE_U8:
- c = 0x80;
- break;
+ return 0x80;
case PA_SAMPLE_S16LE:
case PA_SAMPLE_S16BE:
- case PA_SAMPLE_FLOAT32:
- case PA_SAMPLE_FLOAT32RE:
- c = 0;
- break;
+ case PA_SAMPLE_S32LE:
+ case PA_SAMPLE_S32BE:
+ case PA_SAMPLE_FLOAT32LE:
+ case PA_SAMPLE_FLOAT32BE:
+ return 0;
case PA_SAMPLE_ALAW:
- c = 0xd5;
- break;
+ return 0xd5;
case PA_SAMPLE_ULAW:
- c = 0xff;
- break;
+ return 0xff;
default:
pa_assert_not_reached();
}
+ return 0;
+}
+
+void* pa_silence_memory(void *p, size_t length, const pa_sample_spec *spec) {
+ pa_assert(p);
+ pa_assert(length > 0);
+ pa_assert(spec);
- memset(p, c, length);
+ memset(p, silence_byte(spec->format), length);
+ return p;
+}
+
+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(
@@ -124,11 +156,11 @@ 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);
@@ -139,50 +171,49 @@ 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;
+ for (i = 0; i < nstreams; i++) {
+ pa_mix_info *m = streams + i;
+ int32_t v, cv = m->linear[channel].i;
- if (cvolume == PA_VOLUME_MUTED)
- v = 0;
- else {
- v = *((int16_t*) ((uint8_t*) streams[i].internal + streams[i].chunk.index + d));
+ if (PA_UNLIKELY(d >= m->chunk.length))
+ goto finish;
- if (cvolume != PA_VOLUME_NORM)
- v = (int32_t) (v * pa_sw_volume_to_linear(cvolume));
- }
-
- 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 = CLAMP(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;
}
@@ -191,45 +222,135 @@ 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);
+ }
- for (i = 0; i < nstreams; i++) {
- int32_t v;
- pa_volume_t cvolume = streams[i].volume.values[channel];
+ sum = PA_CLAMP_UNLIKELY(sum, -0x8000, 0x7FFF);
+ sum = (sum * linear[channel]) / 0x10000;
+ *((int16_t*) data) = PA_INT16_SWAP((int16_t) sum);
- if (d >= streams[i].chunk.length)
- goto finish;
+ data = (uint8_t*) data + sizeof(int16_t);
+
+ if (PA_UNLIKELY(++channel >= spec->channels))
+ channel = 0;
+ }
- if (cvolume == PA_VOLUME_MUTED)
- v = 0;
- else {
- v = PA_INT16_SWAP(*((int16_t*) ((uint8_t*) streams[i].internal + streams[i].chunk.index + d)));
+ break;
+ }
- if (cvolume != PA_VOLUME_NORM)
- v = (int32_t) (v * pa_sw_volume_to_linear(cvolume));
- }
+ case PA_SAMPLE_S32NE:{
+ unsigned channel = 0;
+ int32_t linear[PA_CHANNELS_MAX];
- sum += v;
+ 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 = *((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);
- sum = CLAMP(sum, -0x8000, 0x7FFF);
+ 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 += 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);
- if (++channel >= spec->channels)
+ data = (uint8_t*) data + sizeof(int32_t);
+
+ if (PA_UNLIKELY(++channel >= spec->channels))
channel = 0;
}
@@ -238,45 +359,133 @@ 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;
- for (i = 0; i < nstreams; i++) {
- int32_t v;
- pa_volume_t cvolume = streams[i].volume.values[channel];
+ 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;
+ }
- if (d >= streams[i].chunk.length)
- goto finish;
+ sum += v;
+ m->ptr = (uint8_t*) m->ptr + 1;
+ }
- if (cvolume == PA_VOLUME_MUTED)
- v = 0;
- else {
- v = (int32_t) *((uint8_t*) streams[i].internal + streams[i].chunk.index + d) - 0x80;
+ sum = (sum * linear[channel]) / 0x10000;
+ sum = PA_CLAMP_UNLIKELY(sum, -0x80, 0x7F);
+ *((uint8_t*) data) = (uint8_t) (sum + 0x80);
- if (cvolume != PA_VOLUME_NORM)
- v = (int32_t) (v * pa_sw_volume_to_linear(cvolume));
- }
+ data = (uint8_t*) data + 1;
- sum += v;
+ if (PA_UNLIKELY(++channel >= spec->channels))
+ channel = 0;
+ }
+
+ break;
+ }
+
+ case PA_SAMPLE_ULAW: {
+ 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;
+
+ 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_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 = CLAMP(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;
}
@@ -285,43 +494,88 @@ 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;
+ }
- if (d >= streams[i].chunk.length)
- goto finish;
+ break;
+ }
- if (cvolume == PA_VOLUME_MUTED)
- v = 0;
- else {
- v = *((float*) ((uint8_t*) streams[i].internal + streams[i].chunk.index + d));
+ case PA_SAMPLE_FLOAT32RE: {
+ unsigned channel = 0;
+ float linear[PA_CHANNELS_MAX];
- if (cvolume != PA_VOLUME_NORM)
- v *= pa_sw_volume_to_linear(cvolume);
- }
+ calc_linear_float_stream_volumes(streams, nstreams, spec);
+ calc_linear_float_volume(linear, volume);
- sum += v;
+ for (d = 0;; d += sizeof(float)) {
+ float sum = 0;
+ unsigned i;
+
+ if (PA_UNLIKELY(d >= length))
+ goto finish;
+
+ 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 {
+ 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;
}
@@ -330,7 +584,7 @@ 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:
@@ -354,6 +608,9 @@ void pa_volume_memchunk(
pa_assert(c->length % pa_frame_size(spec) == 0);
pa_assert(volume);
+ if (pa_memblock_is_silence(c->memblock))
+ return;
+
if (pa_cvolume_channels_equal_to(volume, PA_VOLUME_NORM))
return;
@@ -362,7 +619,7 @@ void pa_volume_memchunk(
return;
}
- ptr = pa_memblock_acquire(c->memblock);
+ ptr = (uint8_t*) pa_memblock_acquire(c->memblock) + c->index;
switch (spec->format) {
@@ -372,18 +629,17 @@ 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);
t = (t * linear[channel]) / 0x10000;
- t = CLAMP(t, -0x8000, 0x7FFF);
+ t = PA_CLAMP_UNLIKELY(t, -0x8000, 0x7FFF);
*d = (int16_t) t;
- if (++channel >= spec->channels)
+ if (PA_UNLIKELY(++channel >= spec->channels))
channel = 0;
}
break;
@@ -395,18 +651,62 @@ 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));
t = (t * linear[channel]) / 0x10000;
- t = CLAMP(t, -0x8000, 0x7FFF);
+ t = PA_CLAMP_UNLIKELY(t, -0x8000, 0x7FFF);
*d = PA_INT16_SWAP((int16_t) t);
- if (++channel >= spec->channels)
+ if (PA_UNLIKELY(++channel >= spec->channels))
+ channel = 0;
+ }
+
+ break;
+ }
+
+ case PA_SAMPLE_S32NE: {
+ int32_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/sizeof(int32_t); n > 0; d++, n--) {
+ int64_t t;
+
+ t = (int64_t)(*d);
+ t = (t * linear[channel]) / 0x10000;
+ t = PA_CLAMP_UNLIKELY(t, -0x80000000LL, 0x7FFFFFFFLL);
+ *d = (int32_t) t;
+
+ if (PA_UNLIKELY(++channel >= spec->channels))
+ channel = 0;
+ }
+ break;
+ }
+
+ case PA_SAMPLE_S32RE: {
+ int32_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/sizeof(int32_t); n > 0; d++, n--) {
+ int64_t t;
+
+ t = (int64_t)(PA_INT32_SWAP(*d));
+ t = (t * linear[channel]) / 0x10000;
+ t = PA_CLAMP_UNLIKELY(t, -0x80000000LL, 0x7FFFFFFFLL);
+ *d = PA_INT32_SWAP((int32_t) t);
+
+ if (PA_UNLIKELY(++channel >= spec->channels))
channel = 0;
}
@@ -419,18 +719,61 @@ 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;
t = (t * linear[channel]) / 0x10000;
- t = CLAMP(t, -0x80, 0x7F);
+ t = PA_CLAMP_UNLIKELY(t, -0x80, 0x7F);
*d = (uint8_t) (t + 0x80);
- if (++channel >= spec->channels)
+ if (PA_UNLIKELY(++channel >= spec->channels))
+ channel = 0;
+ }
+ 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;
@@ -442,14 +785,14 @@ void pa_volume_memchunk(
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]);
@@ -459,6 +802,32 @@ 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 */
@@ -542,3 +911,117 @@ void pa_deinterleave(const void *src, void *dst[], unsigned channels, size_t ss,
}
}
}
+
+static pa_memblock *silence_memblock_new(pa_mempool *pool, uint8_t c) {
+ pa_memblock *b;
+ size_t length;
+ void *data;
+
+ pa_assert(pool);
+
+ length = PA_MIN(pa_mempool_block_size_max(pool), PA_SILENCE_MAX);
+
+ b = pa_memblock_new(pool, length);
+
+ data = pa_memblock_acquire(b);
+ memset(data, c, length);
+ pa_memblock_release(b);
+
+ pa_memblock_set_is_silence(b, TRUE);
+
+ return b;
+}
+
+void pa_silence_cache_init(pa_silence_cache *cache) {
+ pa_assert(cache);
+
+ memset(cache, 0, sizeof(pa_silence_cache));
+}
+
+void pa_silence_cache_done(pa_silence_cache *cache) {
+ pa_sample_format_t f;
+ pa_assert(cache);
+
+ for (f = 0; f < PA_SAMPLE_MAX; f++)
+ if (cache->blocks[f])
+ pa_memblock_unref(cache->blocks[f]);
+
+ memset(cache, 0, sizeof(pa_silence_cache));
+}
+
+pa_memchunk* pa_silence_memchunk_get(pa_silence_cache *cache, pa_mempool *pool, pa_memchunk* ret, const pa_sample_spec *spec, size_t length) {
+ pa_memblock *b;
+ size_t l;
+
+ pa_assert(cache);
+ pa_assert(pa_sample_spec_valid(spec));
+
+ if (!(b = cache->blocks[spec->format]))
+
+ switch (spec->format) {
+ case PA_SAMPLE_U8:
+ cache->blocks[PA_SAMPLE_U8] = b = silence_memblock_new(pool, 0x80);
+ break;
+ case PA_SAMPLE_S16LE:
+ case PA_SAMPLE_S16BE:
+ case PA_SAMPLE_S32LE:
+ case PA_SAMPLE_S32BE:
+ case PA_SAMPLE_FLOAT32LE:
+ case PA_SAMPLE_FLOAT32BE:
+ cache->blocks[PA_SAMPLE_S16LE] = b = silence_memblock_new(pool, 0);
+ cache->blocks[PA_SAMPLE_S16BE] = pa_memblock_ref(b);
+ cache->blocks[PA_SAMPLE_S32LE] = pa_memblock_ref(b);
+ cache->blocks[PA_SAMPLE_S32BE] = pa_memblock_ref(b);
+ cache->blocks[PA_SAMPLE_FLOAT32LE] = pa_memblock_ref(b);
+ cache->blocks[PA_SAMPLE_FLOAT32BE] = pa_memblock_ref(b);
+ break;
+ case PA_SAMPLE_ALAW:
+ cache->blocks[PA_SAMPLE_ALAW] = b = silence_memblock_new(pool, 0xd5);
+ break;
+ case PA_SAMPLE_ULAW:
+ cache->blocks[PA_SAMPLE_ULAW] = b = silence_memblock_new(pool, 0xff);
+ break;
+ default:
+ pa_assert_not_reached();
+ }
+
+ pa_assert(b);
+
+ ret->memblock = pa_memblock_ref(b);
+
+ l = pa_memblock_get_length(b);
+ if (length > l || length == 0)
+ length = l;
+
+ ret->length = pa_frame_align(length, spec);
+ ret->index = 0;
+
+ return ret;
+}
+
+void pa_sample_clamp(pa_sample_format_t format, void *dst, size_t dstr, const void *src, size_t sstr, unsigned n) {
+ const float *s;
+ float *d;
+
+ s = src; d = dst;
+
+ if (format == PA_SAMPLE_FLOAT32NE) {
+
+ float minus_one = -1.0, plus_one = 1.0;
+ oil_clip_f32(d, dstr, s, sstr, n, &minus_one, &plus_one);
+
+ } else {
+ pa_assert(format == PA_SAMPLE_FLOAT32RE);
+
+ for (; n > 0; n--) {
+ float f;
+
+ f = PA_FLOAT32_SWAP(*s);
+ f = PA_CLAMP_UNLIKELY(f, -1.0, 1.0);
+ *d = PA_FLOAT32_SWAP(f);
+
+ s = (const float*) ((const uint8_t*) s + sstr);
+ d = (float*) ((uint8_t*) d + dstr);
+ }
+ }
+}
generated by cgit (git 2.34.1) at 2025-07-19 03:37:56 +0000