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audio fixes + initial audio capture support (malc)

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git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2040 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
bellard 2006-07-04 16:51:32 +00:00
parent feea13e186
commit 8ead62cfc2
15 changed files with 514 additions and 54 deletions
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34
audio/noaudio.c
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@ -40,22 +40,21 @@ static int no_run_out (HWVoiceOut *hw)
{
NoVoiceOut *no = (NoVoiceOut *) hw;
int live, decr, samples;
int64_t now = qemu_get_clock (vm_clock);
int64_t ticks = now - no->old_ticks;
int64_t bytes = (ticks * hw->info.bytes_per_second) / ticks_per_sec;
if (bytes > INT_MAX) {
samples = INT_MAX >> hw->info.shift;
}
else {
samples = bytes >> hw->info.shift;
}
int64_t now;
int64_t ticks;
int64_t bytes;
live = audio_pcm_hw_get_live_out (&no->hw);
if (!live) {
return 0;
}
now = qemu_get_clock (vm_clock);
ticks = now - no->old_ticks;
bytes = (ticks * hw->info.bytes_per_second) / ticks_per_sec;
bytes = audio_MIN (bytes, INT_MAX);
samples = bytes >> hw->info.shift;
no->old_ticks = now;
decr = audio_MIN (live, samples);
hw->rpos = (hw->rpos + decr) % hw->samples;
@ -101,17 +100,20 @@ static void no_fini_in (HWVoiceIn *hw)
static int no_run_in (HWVoiceIn *hw)
{
NoVoiceIn *no = (NoVoiceIn *) hw;
int64_t now = qemu_get_clock (vm_clock);
int64_t ticks = now - no->old_ticks;
int64_t bytes = (ticks * hw->info.bytes_per_second) / ticks_per_sec;
int live = audio_pcm_hw_get_live_in (hw);
int dead = hw->samples - live;
int samples;
bytes = audio_MIN (bytes, INT_MAX);
samples = bytes >> hw->info.shift;
samples = audio_MIN (samples, dead);
if (dead) {
int64_t now = qemu_get_clock (vm_clock);
int64_t ticks = now - no->old_ticks;
int64_t bytes = (ticks * hw->info.bytes_per_second) / ticks_per_sec;
no->old_ticks = now;
bytes = audio_MIN (bytes, INT_MAX);
samples = bytes >> hw->info.shift;
samples = audio_MIN (samples, dead);
}
return samples;
}