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fix swr_convert buffering of packed audio 

swr_convert is not properly buffering packed input audio when the
output is not large enough, and when resampling is not actually needed
(same samplerate and no SWR_FLAG_RESAMPLE).

buf_set() is only handling the first channel and leaving the others as-is.

Sample program to reproduce the problem is here https://gist.github.com/2431768

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Andrew Wason 2012-04-20 17:06:25 -04:00 committed by Michael Niedermayer
parent a812b599b5
commit e9b1d5ae5e
1 changed files with 5 additions and 3 deletions
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8
libswresample/swresample.c
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@ -360,12 +360,14 @@ static void fill_audiodata(AudioData *out, uint8_t *in_arg [SWR_CH_MAX]){
* out may be equal in.
*/
static void buf_set(AudioData *out, AudioData *in, int count){
int ch;
if(in->planar){
int ch;
for(ch=0; ch<out->ch_count; ch++)
out->ch[ch]= in->ch[ch] + count*out->bps;
}else
out->ch[0]= in->ch[0] + count*out->ch_count*out->bps;
}else{
for(ch=0; ch<out->ch_count; ch++)
out->ch[ch]= in->ch[0] + (ch + count*out->ch_count) * out->bps;
}
}
/**