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adpcm: Write the correct number of samples for ima-dk4

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Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
This commit is contained in:
Luca Barbato 2013-07-07 12:56:12 +02:00
parent bbf6a4aa20
commit 12576afe20
1 changed files with 1 additions and 1 deletions
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2
libavcodec/adpcm.c
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@ -770,7 +770,7 @@ static int adpcm_decode_frame(AVCodecContext *avctx, void *data,
return AVERROR_INVALIDDATA;
}
}
for (n = nb_samples >> (1 - st); n > 0; n--) {
for (n = (nb_samples >> (1 - st)) - 1; n > 0; n--) {
int v = bytestream2_get_byteu(&gb);
*samples++ = adpcm_ima_expand_nibble(&c->status[0 ], v >> 4 , 3);
*samples++ = adpcm_ima_expand_nibble(&c->status[st], v & 0x0F, 3);