-/* $Id$ */
-
/***
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,
+ by the Free Software Foundation; either version 2.1 of the License,
or (at your option) any later version.
PulseAudio is distributed in the hope that it will be useful, but
#include <config.h>
#endif
-#include <stdio.h>
#include <string.h>
#include <stdlib.h>
+#include <stdio.h>
+#include <errno.h>
+#include <math.h>
-#include <liboil/liboilfuncs.h>
-#include <liboil/liboil.h>
+#include <pulse/timeval.h>
#include <pulsecore/log.h>
+#include <pulsecore/core-error.h>
#include <pulsecore/macro.h>
#include <pulsecore/g711.h>
+#include <pulsecore/core-util.h>
+#include <pulsecore/endianmacros.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;
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);
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_S32LE:
case PA_SAMPLE_S32BE:
- case PA_SAMPLE_FLOAT32:
- case PA_SAMPLE_FLOAT32RE:
- c = 0;
- break;
+ case PA_SAMPLE_FLOAT32LE:
+ case PA_SAMPLE_FLOAT32BE:
+ case PA_SAMPLE_S24LE:
+ case PA_SAMPLE_S24BE:
+ case PA_SAMPLE_S24_32LE:
+ case PA_SAMPLE_S24_32BE:
+ 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();
}
-
- 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);
+void* pa_silence_memory(void *p, size_t length, const pa_sample_spec *spec) {
+ pa_assert(p);
+ pa_assert(length > 0);
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);
- }
- }
+ memset(p, silence_byte(spec->format), length);
+ return p;
}
-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]);
- }
- }
-}
+size_t pa_frame_align(size_t l, const pa_sample_spec *ss) {
+ size_t fs;
-static void calc_linear_float_volume(float linear[], const pa_cvolume *volume) {
- unsigned channel;
+ pa_assert(ss);
- pa_assert(linear);
- pa_assert(volume);
+ fs = pa_frame_size(ss);
- for (channel = 0; channel < volume->channels; channel++)
- linear[channel] = pa_sw_volume_to_linear(volume->values[channel]);
+ return (l/fs) * fs;
}
-size_t pa_mix(
- pa_mix_info streams[],
- unsigned nstreams,
- void *data,
- size_t length,
- const pa_sample_spec *spec,
- const pa_cvolume *volume,
- pa_bool_t mute) {
-
- pa_cvolume full_volume;
- unsigned k;
- size_t d = 0;
-
- 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].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 (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 = *((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) = (int16_t) sum;
-
- data = (uint8_t*) data + sizeof(int16_t);
-
- if (PA_UNLIKELY(++channel >= spec->channels))
- channel = 0;
- }
-
- break;
- }
-
- 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 (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 = 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 (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;
- }
-
- 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 += 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) = PA_INT32_SWAP((int32_t) sum);
-
- data = (uint8_t*) data + sizeof(int32_t);
-
- if (PA_UNLIKELY(++channel >= spec->channels))
- channel = 0;
- }
-
- break;
- }
-
- 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;
+bool pa_frame_aligned(size_t l, const pa_sample_spec *ss) {
+ size_t fs;
- if (PA_UNLIKELY(d >= length))
- goto finish;
+ pa_assert(ss);
- for (i = 0; i < nstreams; i++) {
- pa_mix_info *m = streams + i;
- int32_t v, cv = m->linear[channel].i;
+ fs = pa_frame_size(ss);
- if (PA_UNLIKELY(d >= m->chunk.length))
- goto finish;
+ return l % fs == 0;
+}
- 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;
- }
+void pa_interleave(const void *src[], unsigned channels, void *dst, size_t ss, unsigned n) {
+ unsigned c;
+ size_t fs;
- sum += v;
- m->ptr = (uint8_t*) m->ptr + 1;
- }
+ pa_assert(src);
+ pa_assert(channels > 0);
+ pa_assert(dst);
+ pa_assert(ss > 0);
+ pa_assert(n > 0);
- sum = (sum * linear[channel]) / 0x10000;
- sum = PA_CLAMP_UNLIKELY(sum, -0x80, 0x7F);
- *((uint8_t*) data) = (uint8_t) (sum + 0x80);
+ fs = ss * channels;
- data = (uint8_t*) data + 1;
+ for (c = 0; c < channels; c++) {
+ unsigned j;
+ void *d;
+ const void *s;
- if (PA_UNLIKELY(++channel >= spec->channels))
- channel = 0;
- }
+ s = src[c];
+ d = (uint8_t*) dst + c * ss;
- break;
+ for (j = 0; j < n; j ++) {
+ memcpy(d, s, (int) ss);
+ s = (uint8_t*) s + ss;
+ d = (uint8_t*) d + fs;
}
+ }
+}
- 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;
- }
+void pa_deinterleave(const void *src, void *dst[], unsigned channels, size_t ss, unsigned n) {
+ size_t fs;
+ unsigned c;
- sum += v;
- m->ptr = (uint8_t*) m->ptr + 1;
- }
+ pa_assert(src);
+ pa_assert(dst);
+ pa_assert(channels > 0);
+ pa_assert(ss > 0);
+ pa_assert(n > 0);
- sum = PA_CLAMP_UNLIKELY(sum, -0x8000, 0x7FFF);
- sum = (sum * linear[channel]) / 0x10000;
- *((uint8_t*) data) = (uint8_t) st_14linear2ulaw(sum >> 2);
+ fs = ss * channels;
- data = (uint8_t*) data + 1;
+ for (c = 0; c < channels; c++) {
+ unsigned j;
+ const void *s;
+ void *d;
- if (PA_UNLIKELY(++channel >= spec->channels))
- channel = 0;
- }
+ s = (uint8_t*) src + c * ss;
+ d = dst[c];
- break;
+ for (j = 0; j < n; j ++) {
+ memcpy(d, s, (int) ss);
+ s = (uint8_t*) s + fs;
+ d = (uint8_t*) d + ss;
}
+ }
+}
- 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);
+static pa_memblock *silence_memblock_new(pa_mempool *pool, uint8_t c) {
+ pa_memblock *b;
+ size_t length;
+ void *data;
- for (d = 0;; d ++) {
- int32_t sum = 0;
- unsigned i;
+ pa_assert(pool);
- if (PA_UNLIKELY(d >= length))
- goto finish;
+ length = PA_MIN(pa_mempool_block_size_max(pool), PA_SILENCE_MAX);
- for (i = 0; i < nstreams; i++) {
- pa_mix_info *m = streams + i;
- int32_t v, cv = m->linear[channel].i;
+ b = pa_memblock_new(pool, length);
- if (PA_UNLIKELY(d >= m->chunk.length))
- goto finish;
+ data = pa_memblock_acquire(b);
+ memset(data, c, length);
+ pa_memblock_release(b);
- 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;
- }
+ pa_memblock_set_is_silence(b, true);
- sum += v;
- m->ptr = (uint8_t*) m->ptr + 1;
- }
+ return b;
+}
- sum = PA_CLAMP_UNLIKELY(sum, -0x8000, 0x7FFF);
- sum = (sum * linear[channel]) / 0x10000;
- *((uint8_t*) data) = (uint8_t) st_13linear2alaw(sum >> 3);
+void pa_silence_cache_init(pa_silence_cache *cache) {
+ pa_assert(cache);
- data = (uint8_t*) data + 1;
+ memset(cache, 0, sizeof(pa_silence_cache));
+}
- if (PA_UNLIKELY(++channel >= spec->channels))
- channel = 0;
- }
+void pa_silence_cache_done(pa_silence_cache *cache) {
+ pa_sample_format_t f;
+ pa_assert(cache);
- break;
- }
+ for (f = 0; f < PA_SAMPLE_MAX; f++)
+ if (cache->blocks[f])
+ pa_memblock_unref(cache->blocks[f]);
- case PA_SAMPLE_FLOAT32NE: {
- unsigned channel = 0;
- float linear[PA_CHANNELS_MAX];
+ memset(cache, 0, sizeof(pa_silence_cache));
+}
- calc_linear_float_stream_volumes(streams, nstreams, spec);
- calc_linear_float_volume(linear, volume);
+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_S24LE:
+ case PA_SAMPLE_S24BE:
+ case PA_SAMPLE_S24_32LE:
+ case PA_SAMPLE_S24_32BE:
+ 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_S24LE] = pa_memblock_ref(b);
+ cache->blocks[PA_SAMPLE_S24BE] = pa_memblock_ref(b);
+ cache->blocks[PA_SAMPLE_S24_32LE] = pa_memblock_ref(b);
+ cache->blocks[PA_SAMPLE_S24_32BE] = 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();
+ }
- for (d = 0;; d += sizeof(float)) {
- float sum = 0;
- unsigned i;
+ pa_assert(b);
- if (PA_UNLIKELY(d >= length))
- goto finish;
+ ret->memblock = pa_memblock_ref(b);
- for (i = 0; i < nstreams; i++) {
- pa_mix_info *m = streams + i;
- float v, cv = m->linear[channel].f;
+ l = pa_memblock_get_length(b);
+ if (length > l || length == 0)
+ length = l;
- if (PA_UNLIKELY(d >= m->chunk.length))
- goto finish;
+ ret->length = pa_frame_align(length, spec);
+ ret->index = 0;
- if (PA_UNLIKELY(cv <= 0) || PA_UNLIKELY(!!mute) || PA_UNLIKELY(linear[channel] <= 0))
- v = 0;
- else {
- v = *((float*) m->ptr);
- v *= cv;
- }
+ return ret;
+}
- sum += v;
- m->ptr = (uint8_t*) m->ptr + sizeof(float);
- }
+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;
- sum *= linear[channel];
- *((float*) data) = sum;
+ s = src; d = dst;
- data = (uint8_t*) data + sizeof(float);
+ if (format == PA_SAMPLE_FLOAT32NE) {
+ for (; n > 0; n--) {
+ float f;
- if (PA_UNLIKELY(++channel >= spec->channels))
- channel = 0;
- }
+ f = *s;
+ *d = PA_CLAMP_UNLIKELY(f, -1.0f, 1.0f);
- break;
+ s = (const float*) ((const uint8_t*) s + sstr);
+ d = (float*) ((uint8_t*) d + dstr);
}
+ } else {
+ pa_assert(format == PA_SAMPLE_FLOAT32RE);
- 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 (PA_UNLIKELY(d >= length))
- goto finish;
+ for (; n > 0; n--) {
+ float f;
- for (i = 0; i < nstreams; i++) {
- pa_mix_info *m = streams + i;
- float v, cv = m->linear[channel].f;
+ f = PA_FLOAT32_SWAP(*s);
+ f = PA_CLAMP_UNLIKELY(f, -1.0f, 1.0f);
+ *d = PA_FLOAT32_SWAP(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;
- }
-
- sum += v;
- m->ptr = (uint8_t*) m->ptr + sizeof(float);
- }
-
- sum *= linear[channel];
- *((uint32_t*) data) = PA_UINT32_SWAP(*(uint32_t*) &sum);
-
- data = (uint8_t*) data + sizeof(float);
-
- if (PA_UNLIKELY(++channel >= spec->channels))
- channel = 0;
- }
-
- break;
+ s = (const float*) ((const uint8_t*) s + sstr);
+ d = (float*) ((uint8_t*) d + dstr);
}
-
- default:
- pa_log_error("ERROR: Unable to mix audio data of format %s.", pa_sample_format_to_string(spec->format));
- pa_assert_not_reached();
}
-
-finish:
-
- for (k = 0; k < nstreams; k++)
- pa_memblock_release(streams[k].chunk.memblock);
-
- return d;
}
+/* Similar to pa_bytes_to_usec() but rounds up, not down */
-void pa_volume_memchunk(
- pa_memchunk*c,
- const pa_sample_spec *spec,
- const pa_cvolume *volume) {
-
- void *ptr;
+pa_usec_t pa_bytes_to_usec_round_up(uint64_t length, const pa_sample_spec *spec) {
+ size_t fs;
+ pa_usec_t usec;
- 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;
-
- if (pa_cvolume_channels_equal_to(volume, PA_VOLUME_MUTED)) {
- pa_silence_memchunk(c, spec);
- return;
- }
-
- ptr = (uint8_t*) pa_memblock_acquire(c->memblock) + c->index;
-
- switch (spec->format) {
-
- case PA_SAMPLE_S16NE: {
- int16_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(int16_t); n > 0; d++, n--) {
- int32_t t;
-
- t = (int32_t)(*d);
- t = (t * linear[channel]) / 0x10000;
- t = PA_CLAMP_UNLIKELY(t, -0x8000, 0x7FFF);
- *d = (int16_t) t;
-
- if (PA_UNLIKELY(++channel >= spec->channels))
- channel = 0;
- }
- break;
- }
-
- case PA_SAMPLE_S16RE: {
- int16_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(int16_t); n > 0; d++, n--) {
- int32_t t;
-
- t = (int32_t)(PA_INT16_SWAP(*d));
- t = (t * linear[channel]) / 0x10000;
- t = PA_CLAMP_UNLIKELY(t, -0x8000, 0x7FFF);
- *d = PA_INT16_SWAP((int16_t) t);
-
- 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;
- }
-
- break;
- }
-
- case PA_SAMPLE_U8: {
- 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) *d - 0x80;
- t = (t * linear[channel]) / 0x10000;
- t = PA_CLAMP_UNLIKELY(t, -0x80, 0x7F);
- *d = (uint8_t) (t + 0x80);
-
- 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;
- }
+ fs = pa_frame_size(spec);
+ length = (length + fs - 1) / fs;
- case PA_SAMPLE_FLOAT32NE: {
- float *d;
- int skip;
- unsigned n;
- unsigned channel;
+ usec = (pa_usec_t) length * PA_USEC_PER_SEC;
- d = ptr;
- skip = spec->channels * sizeof(float);
- n = c->length/sizeof(float)/spec->channels;
+ return (usec + spec->rate - 1) / spec->rate;
+}
- for (channel = 0; channel < spec->channels; channel ++) {
- float v, *t;
+/* Similar to pa_usec_to_bytes() but rounds up, not down */
- if (PA_UNLIKELY(volume->values[channel] == PA_VOLUME_NORM))
- continue;
+size_t pa_usec_to_bytes_round_up(pa_usec_t t, const pa_sample_spec *spec) {
+ uint64_t u;
+ pa_assert(spec);
- v = (float) pa_sw_volume_to_linear(volume->values[channel]);
- t = d + channel;
- oil_scalarmult_f32(t, skip, t, skip, &v, n);
- }
- break;
- }
+ u = (uint64_t) t * (uint64_t) spec->rate;
- case PA_SAMPLE_FLOAT32RE: {
- uint32_t *d;
- size_t n;
- unsigned channel;
- float linear[PA_CHANNELS_MAX];
+ u = (u + PA_USEC_PER_SEC - 1) / PA_USEC_PER_SEC;
- calc_linear_float_volume(linear, volume);
+ u *= pa_frame_size(spec);
- for (channel = 0, d = ptr, n = c->length/sizeof(float); n > 0; d++, n--) {
- float t;
- uint32_t z;
+ return (size_t) u;
+}
- z = PA_UINT32_SWAP(*d);
- t = *(float*) &z;
- t *= linear[channel];
- z = *(uint32_t*) &t;
- *d = PA_UINT32_SWAP(z);
+void pa_memchunk_dump_to_file(pa_memchunk *c, const char *fn) {
+ FILE *f;
+ void *p;
- if (PA_UNLIKELY(++channel >= spec->channels))
- channel = 0;
- }
+ pa_assert(c);
+ pa_assert(fn);
- break;
- }
+ /* Only for debugging purposes */
+ f = pa_fopen_cloexec(fn, "a");
- 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 */
+ if (!f) {
+ pa_log_warn("Failed to open '%s': %s", fn, pa_cstrerror(errno));
+ return;
}
- pa_memblock_release(c->memblock);
-}
-
-size_t pa_frame_align(size_t l, const pa_sample_spec *ss) {
- size_t fs;
+ p = pa_memblock_acquire(c->memblock);
- pa_assert(ss);
+ if (fwrite((uint8_t*) p + c->index, 1, c->length, f) != c->length)
+ pa_log_warn("Failed to write to '%s': %s", fn, pa_cstrerror(errno));
- fs = pa_frame_size(ss);
+ pa_memblock_release(c->memblock);
- return (l/fs) * fs;
+ fclose(f);
}
-int pa_frame_aligned(size_t l, const pa_sample_spec *ss) {
- size_t fs;
+static void calc_sine(float *f, size_t l, double freq) {
+ size_t i;
- pa_assert(ss);
+ l /= sizeof(float);
- fs = pa_frame_size(ss);
-
- return l % fs == 0;
+ for (i = 0; i < l; i++)
+ *(f++) = (float) 0.5f * sin((double) i*M_PI*2*freq / (double) l);
}
-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;
+void pa_memchunk_sine(pa_memchunk *c, pa_mempool *pool, unsigned rate, unsigned freq) {
+ size_t l;
+ unsigned gcd, n;
+ void *p;
- for (c = 0; c < channels; c++) {
- unsigned j;
- void *d;
- const void *s;
+ pa_memchunk_reset(c);
- s = src[c];
- d = (uint8_t*) dst + c * ss;
+ gcd = pa_gcd(rate, freq);
+ n = rate / gcd;
- for (j = 0; j < n; j ++) {
- oil_memcpy(d, s, ss);
- s = (uint8_t*) s + ss;
- d = (uint8_t*) d + fs;
- }
- }
-}
+ l = pa_mempool_block_size_max(pool) / sizeof(float);
-void pa_deinterleave(const void *src, void *dst[], unsigned channels, size_t ss, unsigned n) {
- size_t fs;
- unsigned c;
+ l /= n;
+ if (l <= 0) l = 1;
+ l *= n;
- pa_assert(src);
- pa_assert(dst);
- pa_assert(channels > 0);
- pa_assert(ss > 0);
- pa_assert(n > 0);
+ c->length = l * sizeof(float);
+ c->memblock = pa_memblock_new(pool, c->length);
- fs = ss * channels;
+ p = pa_memblock_acquire(c->memblock);
+ calc_sine(p, c->length, freq * l / rate);
+ pa_memblock_release(c->memblock);
+}
- for (c = 0; c < channels; c++) {
- unsigned j;
- const void *s;
- void *d;
+size_t pa_convert_size(size_t size, const pa_sample_spec *from, const pa_sample_spec *to) {
+ pa_usec_t usec;
- s = (uint8_t*) src + c * ss;
- d = dst[c];
+ pa_assert(from);
+ pa_assert(to);
- for (j = 0; j < n; j ++) {
- oil_memcpy(d, s, ss);
- s = (uint8_t*) s + fs;
- d = (uint8_t*) d + ss;
- }
- }
+ usec = pa_bytes_to_usec_round_up(size, from);
+ return pa_usec_to_bytes_round_up(usec, to);
}