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apedec: set s->currentframeblocks after validating nblocks

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Justin Ruggles 2011-10-11 13:25:27 -04:00 committed by Michael Niedermayer
parent 998fc04bcf
commit ae2d3d6be0
1 changed files with 2 additions and 2 deletions
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4
libavcodec/apedec.c
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@ -827,7 +827,7 @@ static int ape_decode_frame(AVCodecContext * avctx,
s->ptr = s->last_ptr = s->data;
s->data_end = s->data + buf_size;
nblocks = s->samples = bytestream_get_be32(&s->ptr);
nblocks = bytestream_get_be32(&s->ptr);
n = bytestream_get_be32(&s->ptr);
if(n < 0 || n > 3){
av_log(avctx, AV_LOG_ERROR, "Incorrect offset passed\n");
@ -836,13 +836,13 @@ static int ape_decode_frame(AVCodecContext * avctx,
}
s->ptr += n;
s->currentframeblocks = nblocks;
buf += 4;
if (!nblocks || nblocks > INT_MAX) {
av_log(avctx, AV_LOG_ERROR, "Invalid sample count: %u.\n", nblocks);
*data_size = 0;
return AVERROR_INVALIDDATA;
}
s->currentframeblocks = s->samples = nblocks;
memset(s->decoded0, 0, sizeof(s->decoded0));
memset(s->decoded1, 0, sizeof(s->decoded1));