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| author | Paul B Mahol <onemda@gmail.com> | 2012-05-04 10:24:39 +0000 |
|---|---|---|
| committer | Paul B Mahol <onemda@gmail.com> | 2012-05-04 10:42:11 +0000 |
| commit | 4b70bba57ec9d61282e8b2b427d738dd44415652 (patch) | |
| tree | da4ad0982407c69566bad18a76253fa10ca4c80b /libavcodec | |
| parent | b7159877b18f6f0262180574cb7163ca6ab664c6 (diff) | |
| download | ffmpeg-4b70bba57ec9d61282e8b2b427d738dd44415652.tar.gz | |
zerocodec: check if there is previous frame
Fixes crash in bug #1219.
Signed-off-by: Paul B Mahol <onemda@gmail.com>
Diffstat (limited to 'libavcodec')
| -rw-r--r-- | libavcodec/zerocodec.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/libavcodec/zerocodec.c b/libavcodec/zerocodec.c index 02e37bc0e7..4944a3e486 100644 --- a/libavcodec/zerocodec.c +++ b/libavcodec/zerocodec.c @@ -65,6 +65,10 @@ static int zerocodec_decode_frame(AVCodecContext *avctx, void *data, pic->key_frame = 1; pic->pict_type = AV_PICTURE_TYPE_I; } else { + if (prev == NULL) { + av_log(avctx, AV_LOG_ERROR, "No previous frame!\n"); + return AVERROR_INVALIDDATA; + } pic->key_frame = 0; pic->pict_type = AV_PICTURE_TYPE_P; } |