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Fix mid/side stereo buggy output zeroing, fixes issue264 part 2.

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Originally committed as revision 15004 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2008-08-28 00:46:09 +00:00
parent 53e6fbb4c5
commit 29ca668f0a
1 changed files with 1 additions and 7 deletions
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8
libavcodec/wmadec.c
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@ -689,18 +689,12 @@ next:
n4 = s->block_len / 2; n4 = s->block_len / 2;
if(s->channel_coded[ch]){ if(s->channel_coded[ch]){
ff_imdct_calc(&s->mdct_ctx[bsize], s->output, s->coefs[ch]); ff_imdct_calc(&s->mdct_ctx[bsize], s->output, s->coefs[ch]);
}else }else if(!(s->ms_stereo && ch==1))
memset(s->output, 0, sizeof(s->output)); memset(s->output, 0, sizeof(s->output));
/* multiply by the window and add in the frame */ /* multiply by the window and add in the frame */
index = (s->frame_len / 2) + s->block_pos - n4; index = (s->frame_len / 2) + s->block_pos - n4;
wma_window(s, &s->frame_out[ch][index]); wma_window(s, &s->frame_out[ch][index]);
/* specific fast case for ms-stereo : add to second
channel if it is not coded */
if (s->ms_stereo && !s->channel_coded[1]) {
wma_window(s, &s->frame_out[1][index]);
}
} }
/* update block number */ /* update block number */