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noaudio: correctly account acquired samples 

This will fix the return value of the function which otherwise returns too
many samples because sw->total_hw_samples_acquired isn't correctly
accounted.

Signed-off-by: Michael Walle <michael@walle.cc>
Signed-off-by: malc <av1474@comtv.ru>
This commit is contained in:
Michael Walle 2011-01-04 01:48:55 +01:00 committed by malc
parent 011da610ba
commit 8a7d0890ac
1 changed files with 3 additions and 0 deletions
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3
audio/noaudio.c
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@ -117,9 +117,12 @@ static int no_run_in (HWVoiceIn *hw)
static int no_read (SWVoiceIn *sw, void *buf, int size) static int no_read (SWVoiceIn *sw, void *buf, int size)
{ {
/* use custom code here instead of audio_pcm_sw_read() to avoid
* useless resampling/mixing */
int samples = size >> sw->info.shift; int samples = size >> sw->info.shift;
int total = sw->hw->total_samples_captured - sw->total_hw_samples_acquired; int total = sw->hw->total_samples_captured - sw->total_hw_samples_acquired;
int to_clear = audio_MIN (samples, total); int to_clear = audio_MIN (samples, total);
sw->total_hw_samples_acquired += total;
audio_pcm_info_clear_buf (&sw->info, buf, to_clear); audio_pcm_info_clear_buf (&sw->info, buf, to_clear);
return to_clear << sw->info.shift; return to_clear << sw->info.shift;
} }