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| author | Michael Niedermayer <michaelni@gmx.at> | 2013-10-29 16:12:01 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2013-10-29 16:13:07 +0100 |
| commit | ce55e667facbaf0e7aa8d543b114b28d22c2a250 (patch) | |
| tree | bb50729871b19b7f865ed9fbe0986b8cccde68cd | |
| parent | 6103faaa51d2f46d6ccecaad9a089b4b42ff66ee (diff) | |
| download | ffmpeg-ce55e667facbaf0e7aa8d543b114b28d22c2a250.tar.gz | |
avcodec/mpegvideo_enc: check that max_b_frames is not negative
Fixes crash found by saste
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
| -rw-r--r-- | libavcodec/mpegvideo_enc.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/libavcodec/mpegvideo_enc.c b/libavcodec/mpegvideo_enc.c index 9b503865c6..3db975c5ff 100644 --- a/libavcodec/mpegvideo_enc.c +++ b/libavcodec/mpegvideo_enc.c @@ -452,6 +452,11 @@ av_cold int ff_MPV_encode_init(AVCodecContext *avctx) av_log(avctx, AV_LOG_ERROR, "b frames not supported by codec\n"); return -1; } + if (s->max_b_frames < 0) { + av_log(avctx, AV_LOG_ERROR, + "max b frames must be 0 or postive for mpegvideo based encoders\n"); + return -1; + } if ((s->codec_id == AV_CODEC_ID_MPEG4 || s->codec_id == AV_CODEC_ID_H263 || |