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avcodec/eatgv: use av_reallocp_array() and check return value 

Fixes #2949.

Signed-off-by: Paul B Mahol <onemda@gmail.com>
This commit is contained in:
Paul B Mahol 2013-09-09 12:23:56 +00:00
parent 81f231b5c7
commit a5615b82eb
1 changed files with 8 additions and 2 deletions
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10
libavcodec/eatgv.c
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@ -169,12 +169,18 @@ static int tgv_decode_inter(TgvContext *s, AVFrame *frame,
/* allocate codebook buffers as necessary */
if (num_mvs > s->num_mvs) {
s->mv_codebook = av_realloc(s->mv_codebook, num_mvs*2*sizeof(int));
if (av_reallocp_array(&s->mv_codebook, num_mvs, sizeof(*s->mv_codebook))) {
s->num_mvs = 0;
return AVERROR(ENOMEM);
}
s->num_mvs = num_mvs;
}
if (num_blocks_packed > s->num_blocks_packed) {
s->block_codebook = av_realloc(s->block_codebook, num_blocks_packed*16);
if (av_reallocp_array(&s->block_codebook, num_blocks_packed, sizeof(*s->block_codebook))) {
s->num_blocks_packed = 0;
return AVERROR(ENOMEM);
}
s->num_blocks_packed = num_blocks_packed;
}