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Diffstat (limited to 'src/pulsecore/sample-util.c')
-rw-r--r--src/pulsecore/sample-util.c116
1 files changed, 34 insertions, 82 deletions
diff --git a/src/pulsecore/sample-util.c b/src/pulsecore/sample-util.c
index 52023d31..d902b4b5 100644
--- a/src/pulsecore/sample-util.c
+++ b/src/pulsecore/sample-util.c
@@ -46,27 +46,15 @@ pa_memblock *pa_silence_memblock_new(pa_mempool *pool, const pa_sample_spec *spe
}
pa_memblock *pa_silence_memblock(pa_memblock* b, const pa_sample_spec *spec) {
- void *data;
-
- assert(b);
- assert(spec);
-
- data = pa_memblock_acquire(b);
- pa_silence_memory(data, pa_memblock_get_length(b), spec);
- pa_memblock_release(b);
+ assert(b && b->data && spec);
+ pa_silence_memory(b->data, b->length, spec);
return b;
}
void pa_silence_memchunk(pa_memchunk *c, const pa_sample_spec *spec) {
- void *data;
-
- assert(c);
- assert(c->memblock);
- assert(spec);
+ assert(c && c->memblock && c->memblock->data && spec && c->length);
- data = pa_memblock_acquire(c->memblock);
- pa_silence_memory((uint8_t*) data+c->index, c->length, spec);
- pa_memblock_release(c->memblock);
+ pa_silence_memory((uint8_t*) c->memblock->data+c->index, c->length, spec);
}
void pa_silence_memory(void *p, size_t length, const pa_sample_spec *spec) {
@@ -94,38 +82,26 @@ void pa_silence_memory(void *p, size_t length, const pa_sample_spec *spec) {
}
size_t pa_mix(
- pa_mix_info streams[],
- unsigned nstreams,
- void *data,
- size_t length,
- const pa_sample_spec *spec,
- const pa_cvolume *volume,
- int mute) {
-
- pa_cvolume full_volume;
- size_t d = 0;
- unsigned k;
+ const pa_mix_info streams[],
+ unsigned nstreams,
+ void *data,
+ size_t length,
+ const pa_sample_spec *spec,
+ const pa_cvolume *volume,
+ int mute) {
- assert(streams);
- assert(data);
- assert(length);
- assert(spec);
+ assert(streams && data && length && spec);
- if (!volume)
- volume = pa_cvolume_reset(&full_volume, spec->channels);
-
- for (k = 0; k < nstreams; k++)
- streams[k].internal = pa_memblock_acquire(streams[k].chunk.memblock);
-
switch (spec->format) {
case PA_SAMPLE_S16NE:{
+ size_t d;
unsigned channel = 0;
for (d = 0;; d += sizeof(int16_t)) {
int32_t sum = 0;
if (d >= length)
- goto finish;
+ return d;
if (!mute && volume->values[channel] != PA_VOLUME_MUTED) {
unsigned i;
@@ -135,12 +111,12 @@ size_t pa_mix(
pa_volume_t cvolume = streams[i].volume.values[channel];
if (d >= streams[i].chunk.length)
- goto finish;
+ return d;
if (cvolume == PA_VOLUME_MUTED)
v = 0;
else {
- v = *((int16_t*) ((uint8_t*) streams[i].internal + streams[i].chunk.index + d));
+ v = *((int16_t*) ((uint8_t*) streams[i].chunk.memblock->data + streams[i].chunk.index + d));
if (cvolume != PA_VOLUME_NORM)
v = (int32_t) (v * pa_sw_volume_to_linear(cvolume));
@@ -163,18 +139,17 @@ size_t pa_mix(
if (++channel >= spec->channels)
channel = 0;
}
-
- break;
}
case PA_SAMPLE_S16RE:{
+ size_t d;
unsigned channel = 0;
for (d = 0;; d += sizeof(int16_t)) {
int32_t sum = 0;
if (d >= length)
- goto finish;
+ return d;
if (!mute && volume->values[channel] != PA_VOLUME_MUTED) {
unsigned i;
@@ -184,12 +159,12 @@ size_t pa_mix(
pa_volume_t cvolume = streams[i].volume.values[channel];
if (d >= streams[i].chunk.length)
- goto finish;
+ return d;
if (cvolume == PA_VOLUME_MUTED)
v = 0;
else {
- v = INT16_SWAP(*((int16_t*) ((uint8_t*) streams[i].internal + streams[i].chunk.index + d)));
+ v = INT16_SWAP(*((int16_t*) ((uint8_t*) streams[i].chunk.memblock->data + streams[i].chunk.index + d)));
if (cvolume != PA_VOLUME_NORM)
v = (int32_t) (v * pa_sw_volume_to_linear(cvolume));
@@ -212,18 +187,17 @@ size_t pa_mix(
if (++channel >= spec->channels)
channel = 0;
}
-
- break;
}
case PA_SAMPLE_U8: {
+ size_t d;
unsigned channel = 0;
for (d = 0;; d ++) {
int32_t sum = 0;
if (d >= length)
- goto finish;
+ return d;
if (!mute && volume->values[channel] != PA_VOLUME_MUTED) {
unsigned i;
@@ -233,12 +207,12 @@ size_t pa_mix(
pa_volume_t cvolume = streams[i].volume.values[channel];
if (d >= streams[i].chunk.length)
- goto finish;
+ return d;
if (cvolume == PA_VOLUME_MUTED)
v = 0;
else {
- v = (int32_t) *((uint8_t*) streams[i].internal + streams[i].chunk.index + d) - 0x80;
+ v = (int32_t) *((uint8_t*) streams[i].chunk.memblock->data + streams[i].chunk.index + d) - 0x80;
if (cvolume != PA_VOLUME_NORM)
v = (int32_t) (v * pa_sw_volume_to_linear(cvolume));
@@ -261,18 +235,17 @@ size_t pa_mix(
if (++channel >= spec->channels)
channel = 0;
}
-
- break;
}
case PA_SAMPLE_FLOAT32NE: {
+ size_t d;
unsigned channel = 0;
for (d = 0;; d += sizeof(float)) {
float sum = 0;
if (d >= length)
- goto finish;
+ return d;
if (!mute && volume->values[channel] != PA_VOLUME_MUTED) {
unsigned i;
@@ -282,12 +255,12 @@ size_t pa_mix(
pa_volume_t cvolume = streams[i].volume.values[channel];
if (d >= streams[i].chunk.length)
- goto finish;
+ return d;
if (cvolume == PA_VOLUME_MUTED)
v = 0;
else {
- v = *((float*) ((uint8_t*) streams[i].internal + streams[i].chunk.index + d));
+ v = *((float*) ((uint8_t*) streams[i].chunk.memblock->data + streams[i].chunk.index + d));
if (cvolume != PA_VOLUME_NORM)
v *= pa_sw_volume_to_linear(cvolume);
@@ -306,34 +279,17 @@ size_t pa_mix(
if (++channel >= spec->channels)
channel = 0;
}
-
- break;
}
default:
pa_log_error("ERROR: Unable to mix audio data of format %s.", pa_sample_format_to_string(spec->format));
abort();
}
-
-finish:
-
- for (k = 0; k < nstreams; k++)
- pa_memblock_release(streams[k].chunk.memblock);
-
- return d;
}
-void pa_volume_memchunk(
- pa_memchunk*c,
- const pa_sample_spec *spec,
- const pa_cvolume *volume) {
-
- void *ptr;
-
- assert(c);
- assert(spec);
- assert(c->length % pa_frame_size(spec) == 0);
+void pa_volume_memchunk(pa_memchunk*c, const pa_sample_spec *spec, const pa_cvolume *volume) {
+ assert(c && spec && (c->length % pa_frame_size(spec) == 0));
assert(volume);
if (pa_cvolume_channels_equal_to(volume, PA_VOLUME_NORM))
@@ -344,8 +300,6 @@ void pa_volume_memchunk(
return;
}
- ptr = pa_memblock_acquire(c->memblock);
-
switch (spec->format) {
case PA_SAMPLE_S16NE: {
int16_t *d;
@@ -356,7 +310,7 @@ void pa_volume_memchunk(
for (channel = 0; channel < spec->channels; channel++)
linear[channel] = pa_sw_volume_to_linear(volume->values[channel]);
- 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 = (int16_t*) ((uint8_t*) c->memblock->data+c->index), n = c->length/sizeof(int16_t); n > 0; d++, n--) {
int32_t t = (int32_t)(*d);
t = (int32_t) (t * linear[channel]);
@@ -381,7 +335,7 @@ void pa_volume_memchunk(
for (channel = 0; channel < spec->channels; channel++)
linear[channel] = pa_sw_volume_to_linear(volume->values[channel]);
- 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 = (int16_t*) ((uint8_t*) c->memblock->data+c->index), n = c->length/sizeof(int16_t); n > 0; d++, n--) {
int32_t t = (int32_t)(INT16_SWAP(*d));
t = (int32_t) (t * linear[channel]);
@@ -403,7 +357,7 @@ void pa_volume_memchunk(
size_t n;
unsigned channel = 0;
- for (d = (uint8_t*) ptr + c->index, n = c->length; n > 0; d++, n--) {
+ for (d = (uint8_t*) c->memblock->data + c->index, n = c->length; n > 0; d++, n--) {
int32_t t = (int32_t) *d - 0x80;
t = (int32_t) (t * pa_sw_volume_to_linear(volume->values[channel]));
@@ -425,7 +379,7 @@ void pa_volume_memchunk(
unsigned n;
unsigned channel;
- d = (float*) ((uint8_t*) ptr + c->index);
+ d = (float*) ((uint8_t*) c->memblock->data + c->index);
skip = spec->channels * sizeof(float);
n = c->length/sizeof(float)/spec->channels;
@@ -448,7 +402,5 @@ void pa_volume_memchunk(
pa_sample_format_to_string(spec->format));
abort();
}
-
- pa_memblock_release(c->memblock);
}
generated by cgit (git 2.34.1) at 2024-11-16 03:12:50 +0000