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avcodec/iff: check pixfmt for rgb8 / rgbn

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Fixes out of array access

Found-by: Piotr Bandurski <ami_stuff@o2.pl>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 3539d6c63a16e1b2874bb037a86f317449c58770)

Conflicts:

	libavcodec/iff.c
(cherry picked from commit 656f930160db48e0b7b25069c62abc340e7f0628)

Conflicts:

	libavcodec/iff.c
This commit is contained in:
Michael Niedermayer 2014-08-10 21:59:33 +02:00
parent f712d3669e
commit abc1fa7c5a
1 changed files with 2 additions and 2 deletions
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4
libavcodec/iff.c
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@ -832,9 +832,9 @@ static int decode_frame(AVCodecContext *avctx,
break;
case 4:
bytestream2_init(&gb, buf, buf_size);
if (avctx->codec_tag == MKTAG('R','G','B','8'))
if (avctx->codec_tag == MKTAG('R','G','B','8') && avctx->pix_fmt == AV_PIX_FMT_RGB32)
decode_rgb8(&gb, s->frame.data[0], avctx->width, avctx->height, s->frame.linesize[0]);
else if (avctx->codec_tag == MKTAG('R','G','B','N'))
else if (avctx->codec_tag == MKTAG('R','G','B','N') && avctx->pix_fmt == AV_PIX_FMT_RGB444)
decode_rgbn(&gb, s->frame.data[0], avctx->width, avctx->height, s->frame.linesize[0]);
else
return unsupported(avctx);