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commit glitch-free work

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git-svn-id: file:///home/lennart/svn/public/pulseaudio/branches/glitch-free@2122 fefdeb5f-60dc-0310-8127-8f9354f1896f
This commit is contained in:
Lennart Poettering 2008-03-15 15:19:40 +00:00
parent 347cfc356a
commit 12c01e942d
50 changed files with 2877 additions and 1194 deletions
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21
src/pulsecore/sample-util.c
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@ -43,26 +43,25 @@
#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_memblock *b;
pa_assert(pool);
pa_assert(spec);
if (length <= 0)
length = pa_bytes_per_second(spec)/20; /* 50 ms */
length = PA_MIN(pa_bytes_per_second(spec)/20, /* 50 ms */
pa_mempool_block_size_max(pool));
if (length > PA_SILENCE_MAX)
length = PA_SILENCE_MAX;
fs = pa_frame_size(spec);
length = pa_frame_align(length, spec);
length = (length+fs-1)/fs;
b = pa_silence_memblock(pa_memblock_new(pool, length), spec);
if (length <= 0)
length = 1;
pa_memblock_set_is_silence(b, TRUE);
length *= fs;
return pa_silence_memblock(pa_memblock_new(pool, length), spec);
return b;
}
pa_memblock *pa_silence_memblock(pa_memblock* b, const pa_sample_spec *spec) {
@ -74,6 +73,7 @@ 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;
}
@ -631,6 +631,9 @@ 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;