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indeo2: check decoding errors.

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This commit is contained in:
Anton Khirnov 2012-11-17 08:08:40 +01:00
parent 6ea2c9a4cf
commit 7b1fbd4729
1 changed files with 25 additions and 12 deletions
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37
libavcodec/indeo2.c
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@ -176,21 +176,34 @@ static int ir2_decode_frame(AVCodecContext *avctx,
init_get_bits(&s->gb, buf + start, (buf_size - start) * 8);
if (s->decode_delta) { /* intraframe */
ir2_decode_plane(s, avctx->width, avctx->height,
s->picture.data[0], s->picture.linesize[0], ir2_luma_table);
if ((ret = ir2_decode_plane(s, avctx->width, avctx->height,
s->picture.data[0], s->picture.linesize[0],
ir2_luma_table)) < 0)
return ret;
/* swapped U and V */
ir2_decode_plane(s, avctx->width >> 2, avctx->height >> 2,
s->picture.data[2], s->picture.linesize[2], ir2_luma_table);
ir2_decode_plane(s, avctx->width >> 2, avctx->height >> 2,
s->picture.data[1], s->picture.linesize[1], ir2_luma_table);
if ((ret = ir2_decode_plane(s, avctx->width >> 2, avctx->height >> 2,
s->picture.data[2], s->picture.linesize[2],
ir2_luma_table)) < 0)
return ret;
if ((ret = ir2_decode_plane(s, avctx->width >> 2, avctx->height >> 2,
s->picture.data[1], s->picture.linesize[1],
ir2_luma_table)) < 0)
return ret;
} else { /* interframe */
ir2_decode_plane_inter(s, avctx->width, avctx->height,
s->picture.data[0], s->picture.linesize[0], ir2_luma_table);
if ((ret = ir2_decode_plane_inter(s, avctx->width, avctx->height,
s->picture.data[0], s->picture.linesize[0],
ir2_luma_table)) < 0)
return ret;
/* swapped U and V */
ir2_decode_plane_inter(s, avctx->width >> 2, avctx->height >> 2,
s->picture.data[2], s->picture.linesize[2], ir2_luma_table);
ir2_decode_plane_inter(s, avctx->width >> 2, avctx->height >> 2,
s->picture.data[1], s->picture.linesize[1], ir2_luma_table);
if ((ret = ir2_decode_plane_inter(s, avctx->width >> 2, avctx->height >> 2,
s->picture.data[2], s->picture.linesize[2],
ir2_luma_table)) < 0)
return ret;
if ((ret = ir2_decode_plane_inter(s, avctx->width >> 2, avctx->height >> 2,
s->picture.data[1], s->picture.linesize[1],
ir2_luma_table)) < 0)
return ret;
}
*picture = s->picture;