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tqi: Fix passing errors from the MB decode. This silences some valgrind warnings.

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Fixes second half of Ticket794
Bug found by: Oana Stratulat

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2011-12-19 04:13:37 +01:00
parent 608708009f
commit f85334f58e
1 changed files with 7 additions and 3 deletions
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10
libavcodec/eatqi.c
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@ -57,12 +57,15 @@ static av_cold int tqi_decode_init(AVCodecContext *avctx)
return 0;
}
static void tqi_decode_mb(MpegEncContext *s, DCTELEM (*block)[64])
static int tqi_decode_mb(MpegEncContext *s, DCTELEM (*block)[64])
{
int n;
s->dsp.clear_blocks(block[0]);
for (n=0; n<6; n++)
ff_mpeg1_decode_block_intra(s, block[n], n);
if(ff_mpeg1_decode_block_intra(s, block[n], n)<0)
return -1;
return 0;
}
static inline void tqi_idct_put(TqiContext *t, DCTELEM (*block)[64])
@ -134,7 +137,8 @@ static int tqi_decode_frame(AVCodecContext *avctx,
for (s->mb_y=0; s->mb_y<(avctx->height+15)/16; s->mb_y++)
for (s->mb_x=0; s->mb_x<(avctx->width+15)/16; s->mb_x++)
{
tqi_decode_mb(s, t->block);
if(tqi_decode_mb(s, t->block) < 0)
break;
tqi_idct_put(t, t->block);
}