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| author | Michael Niedermayer <michaelni@gmx.at> | 2013-07-13 16:18:06 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2013-07-13 16:23:31 +0200 |
| commit | 4cdb42b428ef425aceeee548af1ee1a8798a02a2 (patch) | |
| tree | cd767301f2e6467d5af4efba02f751ed47c3fe69 | |
| parent | 786b0968dd2969bc6319ead96ed44e856198c704 (diff) | |
| download | ffmpeg-4cdb42b428ef425aceeee548af1ee1a8798a02a2.tar.gz | |
avcodec/012v: improve stride selection
Fixes decoding some files
Fixes Ticket2126
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
| -rw-r--r-- | libavcodec/012v.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/libavcodec/012v.c b/libavcodec/012v.c index 58e3cd6fbd..f694769089 100644 --- a/libavcodec/012v.c +++ b/libavcodec/012v.c @@ -49,6 +49,12 @@ static int zero12v_decode_frame(AVCodecContext *avctx, void *data, av_log(avctx, AV_LOG_ERROR, "Width 1 not supported.\n"); return AVERROR_INVALIDDATA; } + + if ( avctx->codec_tag == MKTAG('0', '1', '2', 'v') + && avpkt->size % avctx->height == 0 + && avpkt->size / avctx->height * 3 >= width * 8) + stride = avpkt->size / avctx->height; + if (avpkt->size < avctx->height * stride) { av_log(avctx, AV_LOG_ERROR, "Packet too small: %d instead of %d\n", avpkt->size, avctx->height * stride); |