/***
This file is part of PulseAudio.
-
+
+ Copyright 2004-2006 Lennart Poettering
+ Copyright 2006 Pierre Ossman <ossman@cendio.se> for Cendio AB
+
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
#include <stdio.h>
#include <string.h>
-#include <assert.h>
#include <stdlib.h>
#include <liboil/liboilfuncs.h>
+#include <liboil/liboil.h>
#include <pulsecore/log.h>
+#include <pulsecore/macro.h>
#include "sample-util.h"
#include "endianmacros.h"
-pa_memblock *pa_silence_memblock_new(const pa_sample_spec *spec, size_t length, pa_memblock_stat*s) {
- assert(spec);
+#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);
- if (length == 0)
- length = pa_bytes_per_second(spec)/10; /* 100 ms */
+ length = (length+fs-1)/fs;
- return pa_silence_memblock(pa_memblock_new(length, s), spec);
+ 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) {
- assert(b && b->data && spec);
- pa_silence_memory(b->data, b->length, spec);
+ void *data;
+
+ pa_assert(b);
+ pa_assert(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) {
- assert(c && c->memblock && c->memblock->data && spec && c->length);
+ void *data;
- pa_silence_memory((uint8_t*) c->memblock->data+c->index, c->length, spec);
+ pa_assert(c);
+ pa_assert(c->memblock);
+ pa_assert(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;
- assert(p && length && spec);
+ pa_assert(p);
+ pa_assert(length > 0);
+ pa_assert(spec);
switch (spec->format) {
case PA_SAMPLE_U8:
case PA_SAMPLE_S16LE:
case PA_SAMPLE_S16BE:
case PA_SAMPLE_FLOAT32:
+ case PA_SAMPLE_FLOAT32RE:
c = 0;
break;
case PA_SAMPLE_ALAW:
+ c = 0xd5;
+ break;
case PA_SAMPLE_ULAW:
- c = 80;
+ c = 0xff;
break;
default:
- assert(0);
+ pa_assert_not_reached();
}
-
+
memset(p, c, length);
}
size_t pa_mix(
- 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 && data && length && spec);
+ 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;
+
+ pa_assert(streams);
+ pa_assert(data);
+ pa_assert(length);
+ pa_assert(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)
- return d;
+ 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)
- return d;
-
+ goto finish;
+
if (cvolume == PA_VOLUME_MUTED)
v = 0;
else {
- v = *((int16_t*) ((uint8_t*) streams[i].chunk.memblock->data + streams[i].chunk.index + d));
-
+ v = *((int16_t*) ((uint8_t*) streams[i].internal + streams[i].chunk.index + d));
+
if (cvolume != PA_VOLUME_NORM)
v = (int32_t) (v * pa_sw_volume_to_linear(cvolume));
}
-
+
sum += v;
}
-
+
if (volume->values[channel] != PA_VOLUME_NORM)
sum = (int32_t) (sum * pa_sw_volume_to_linear(volume->values[channel]));
- if (sum < -0x8000) sum = -0x8000;
- if (sum > 0x7FFF) sum = 0x7FFF;
-
+ sum = CLAMP(sum, -0x8000, 0x7FFF);
}
-
- *((int16_t*) data) = sum;
+
+ *((int16_t*) data) = (int16_t) sum;
data = (uint8_t*) data + sizeof(int16_t);
-
+
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)
- return d;
+ 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)
- return d;
-
+ goto finish;
+
if (cvolume == PA_VOLUME_MUTED)
v = 0;
else {
- v = INT16_SWAP(*((int16_t*) ((uint8_t*) streams[i].chunk.memblock->data + streams[i].chunk.index + d)));
-
+ v = PA_INT16_SWAP(*((int16_t*) ((uint8_t*) streams[i].internal + streams[i].chunk.index + d)));
+
if (cvolume != PA_VOLUME_NORM)
v = (int32_t) (v * pa_sw_volume_to_linear(cvolume));
}
-
+
sum += v;
}
-
+
if (volume->values[channel] != PA_VOLUME_NORM)
sum = (int32_t) (sum * pa_sw_volume_to_linear(volume->values[channel]));
- if (sum < -0x8000) sum = -0x8000;
- if (sum > 0x7FFF) sum = 0x7FFF;
-
+ sum = CLAMP(sum, -0x8000, 0x7FFF);
}
-
- *((int16_t*) data) = INT16_SWAP(sum);
+
+ *((int16_t*) data) = PA_INT16_SWAP((int16_t) sum);
data = (uint8_t*) data + sizeof(int16_t);
-
+
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)
- return d;
+ 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)
- return d;
-
+ goto finish;
+
if (cvolume == PA_VOLUME_MUTED)
v = 0;
else {
- v = (int32_t) *((uint8_t*) streams[i].chunk.memblock->data + streams[i].chunk.index + d) - 0x80;
-
+ v = (int32_t) *((uint8_t*) streams[i].internal + streams[i].chunk.index + d) - 0x80;
+
if (cvolume != PA_VOLUME_NORM)
v = (int32_t) (v * pa_sw_volume_to_linear(cvolume));
}
if (volume->values[channel] != PA_VOLUME_NORM)
sum = (int32_t) (sum * pa_sw_volume_to_linear(volume->values[channel]));
- if (sum < -0x80) sum = -0x80;
- if (sum > 0x7F) sum = 0x7F;
-
+ sum = CLAMP(sum, -0x80, 0x7F);
}
-
+
*((uint8_t*) data) = (uint8_t) (sum + 0x80);
data = (uint8_t*) data + 1;
-
+
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)
- return d;
-
+ goto finish;
+
if (!mute && volume->values[channel] != PA_VOLUME_MUTED) {
unsigned i;
-
+
for (i = 0; i < nstreams; i++) {
float v;
pa_volume_t cvolume = streams[i].volume.values[channel];
-
+
if (d >= streams[i].chunk.length)
- return d;
-
+ goto finish;
+
if (cvolume == PA_VOLUME_MUTED)
v = 0;
else {
- v = *((float*) ((uint8_t*) streams[i].chunk.memblock->data + streams[i].chunk.index + d));
-
+ v = *((float*) ((uint8_t*) streams[i].internal + streams[i].chunk.index + d));
+
if (cvolume != PA_VOLUME_NORM)
v *= pa_sw_volume_to_linear(cvolume);
}
-
+
sum += v;
}
-
+
if (volume->values[channel] != PA_VOLUME_NORM)
sum *= pa_sw_volume_to_linear(volume->values[channel]);
}
-
+
*((float*) data) = sum;
data = (uint8_t*) data + sizeof(float);
if (++channel >= spec->channels)
channel = 0;
}
+
+ break;
}
-
+
default:
- pa_log_error(__FILE__": ERROR: Unable to mix audio data of format %s.", pa_sample_format_to_string(spec->format));
+ 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) {
- assert(c && spec && (c->length % pa_frame_size(spec) == 0));
- assert(volume);
+void pa_volume_memchunk(
+ pa_memchunk*c,
+ const pa_sample_spec *spec,
+ const pa_cvolume *volume) {
+
+ void *ptr;
+
+ pa_assert(c);
+ pa_assert(spec);
+ pa_assert(c->length % pa_frame_size(spec) == 0);
+ pa_assert(volume);
if (pa_cvolume_channels_equal_to(volume, PA_VOLUME_NORM))
return;
return;
}
+ ptr = pa_memblock_acquire(c->memblock);
+
switch (spec->format) {
+
case PA_SAMPLE_S16NE: {
int16_t *d;
size_t n;
unsigned channel;
- double linear[PA_CHANNELS_MAX];
+ int32_t linear[PA_CHANNELS_MAX];
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*) 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]);
-
- if (t < -0x8000) t = -0x8000;
- if (t > 0x7FFF) t = 0x7FFF;
-
+ linear[channel] = (int32_t) (pa_sw_volume_to_linear(volume->values[channel]) * 0x10000);
+
+ for (channel = 0, d = (int16_t*) ((uint8_t*) ptr + c->index), 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);
*d = (int16_t) t;
-
+
if (++channel >= spec->channels)
channel = 0;
}
int16_t *d;
size_t n;
unsigned channel;
- double linear[PA_CHANNELS_MAX];
-
+ int32_t linear[PA_CHANNELS_MAX];
+
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*) 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]);
-
- if (t < -0x8000) t = -0x8000;
- if (t > 0x7FFF) t = 0x7FFF;
-
- *d = INT16_SWAP((int16_t) t);
-
+ linear[channel] = (int32_t) (pa_sw_volume_to_linear(volume->values[channel]) * 0x10000);
+
+ for (channel = 0, d = (int16_t*) ((uint8_t*) ptr + c->index), 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);
+ *d = PA_INT16_SWAP((int16_t) t);
+
if (++channel >= spec->channels)
channel = 0;
}
break;
}
-
+
case PA_SAMPLE_U8: {
uint8_t *d;
size_t n;
- unsigned channel = 0;
-
- 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]));
-
- if (t < -0x80) t = -0x80;
- if (t > 0x7F) t = 0x7F;
-
+ 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);
+
+ for (channel = 0, d = (uint8_t*) ptr + c->index, 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);
*d = (uint8_t) (t + 0x80);
-
+
if (++channel >= spec->channels)
channel = 0;
}
break;
}
-
+
case PA_SAMPLE_FLOAT32NE: {
float *d;
int skip;
unsigned n;
unsigned channel;
-
- d = (float*) ((uint8_t*) c->memblock->data + c->index);
+
+ d = (float*) ((uint8_t*) ptr + c->index);
skip = spec->channels * sizeof(float);
n = c->length/sizeof(float)/spec->channels;
-
+
for (channel = 0; channel < spec->channels ; channel ++) {
float v, *t;
-
+
if (volume->values[channel] == PA_VOLUME_NORM)
continue;
-
+
v = (float) pa_sw_volume_to_linear(volume->values[channel]);
-
t = d + channel;
oil_scalarmult_f32(t, skip, t, skip, &v, n);
}
}
default:
- pa_log_error(__FILE__": ERROR: Unable to change volume of format %s.",
- pa_sample_format_to_string(spec->format));
- abort();
+ 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 */
}
+
+ pa_memblock_release(c->memblock);
+}
+
+size_t pa_frame_align(size_t l, const pa_sample_spec *ss) {
+ size_t fs;
+
+ pa_assert(ss);
+
+ fs = pa_frame_size(ss);
+
+ return (l/fs) * fs;
+}
+
+int pa_frame_aligned(size_t l, const pa_sample_spec *ss) {
+ size_t fs;
+
+ pa_assert(ss);
+
+ fs = pa_frame_size(ss);
+
+ return l % fs == 0;
}
+void pa_interleave(const void *src[], unsigned channels, void *dst, size_t ss, unsigned n) {
+ unsigned c;
+ size_t fs;
+
+ pa_assert(src);
+ pa_assert(channels > 0);
+ pa_assert(dst);
+ pa_assert(ss > 0);
+ pa_assert(n > 0);
+
+ fs = ss * channels;
+
+ for (c = 0; c < channels; c++) {
+ unsigned j;
+ void *d;
+ const void *s;
+
+ s = src[c];
+ d = (uint8_t*) dst + c * ss;
+
+ for (j = 0; j < n; j ++) {
+ oil_memcpy(d, s, ss);
+ s = (uint8_t*) s + ss;
+ d = (uint8_t*) d + fs;
+ }
+ }
+}
+
+void pa_deinterleave(const void *src, void *dst[], unsigned channels, size_t ss, unsigned n) {
+ size_t fs;
+ unsigned c;
+
+ pa_assert(src);
+ pa_assert(dst);
+ pa_assert(channels > 0);
+ pa_assert(ss > 0);
+ pa_assert(n > 0);
+
+ fs = ss * channels;
+
+ for (c = 0; c < channels; c++) {
+ unsigned j;
+ const void *s;
+ void *d;
+
+ s = (uint8_t*) src + c * ss;
+ d = dst[c];
+
+ for (j = 0; j < n; j ++) {
+ oil_memcpy(d, s, ss);
+ s = (uint8_t*) s + fs;
+ d = (uint8_t*) d + ss;
+ }
+ }
+}