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alsdec: change channel sorting so it match reference implementation 

Read channel source instead of channel target for channel sorting.

Signed-off-by: Paul B Mahol <onemda@gmail.com>
This commit is contained in:
Paul B Mahol 2013-01-03 18:37:32 +00:00
parent 0140566359
commit d4211c4722
1 changed files with 5 additions and 2 deletions
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7
libavcodec/alsdec.c
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@ -356,12 +356,15 @@ static av_cold int read_specific_config(ALSDecContext *ctx)
return AVERROR(ENOMEM);
for (i = 0; i < avctx->channels; i++) {
sconf->chan_pos[i] = get_bits(&gb, chan_pos_bits);
if (sconf->chan_pos[i] >= avctx->channels) {
int idx;
idx = get_bits(&gb, chan_pos_bits);
if (idx >= avctx->channels) {
av_log(avctx, AV_LOG_WARNING, "Invalid channel reordering.\n");
sconf->chan_sort = 0;
break;
}
sconf->chan_pos[idx] = i;
}
align_get_bits(&gb);