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Do not read beyond end of input in EA-TGV. This should avoid FATE test #362

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result depending on uninitialized data.

FATE result may change for this test.

Originally committed as revision 22082 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Vitor Sessak 2010-02-26 18:12:27 +00:00
parent 50ff78db01
commit 4784b0922f
1 changed files with 4 additions and 0 deletions
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4
libavcodec/eatgv.c
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@ -192,6 +192,10 @@ static int tgv_decode_inter(TgvContext * s, const uint8_t *buf, const uint8_t *b
s->block_codebook[i][15-j] = tmp[get_bits(&gb, 2)];
}
if (get_bits_left(&gb) < vector_bits *
(s->avctx->height/4) * (s->avctx->width/4))
return -1;
/* read vectors and build frame */
for(y=0; y<s->avctx->height/4; y++)
for(x=0; x<s->avctx->width/4; x++) {