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| author | Michael Niedermayer <michaelni@gmx.at> | 2012-03-10 22:02:46 +0100 |
|---|---|---|
| committer | Sean McGovern <gseanmcg@gmail.com> | 2013-09-23 19:52:45 -0400 |
| commit | 7a9af1da39009167a3dd62204ad2bfd6bbe114b7 (patch) | |
| tree | e4fe7bbce0485e2491b65dd07a86c7872caa973e | |
| parent | 068c8672866858d56ea8747fca5f1e0fcd2d920c (diff) | |
| download | ffmpeg-7a9af1da39009167a3dd62204ad2bfd6bbe114b7.tar.gz | |
mjpegb: Detect changing number of planes in interlaced video
Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
Signed-off-by: Martin Storsjö <martin@martin.st>
(cherry picked from commit af11fa5409cc72fc45ca7f3527400beca10967b9)
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
| -rw-r--r-- | libavcodec/mjpegdec.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/libavcodec/mjpegdec.c b/libavcodec/mjpegdec.c index 5256a8e04c..a1a67893b6 100644 --- a/libavcodec/mjpegdec.c +++ b/libavcodec/mjpegdec.c @@ -245,6 +245,13 @@ int ff_mjpeg_decode_sof(MJpegDecodeContext *s) if (nb_components <= 0 || nb_components > MAX_COMPONENTS) return -1; + if (s->interlaced && (s->bottom_field == !s->interlace_polarity)) { + if (nb_components != s->nb_components) { + av_log(s->avctx, AV_LOG_ERROR, + "nb_components changing in interlaced picture\n"); + return AVERROR_INVALIDDATA; + } + } if (s->ls && !(s->bits <= 8 || nb_components == 1)) { av_log(s->avctx, AV_LOG_ERROR, "only <= 8 bits/component or 16-bit gray accepted for JPEG-LS\n"); |