diff options
| author | Michael Niedermayer <michaelni@gmx.at> | 2012-04-15 21:01:35 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2012-04-15 21:02:01 +0200 |
| commit | 88a97d660d65b8d5ac2ca719969c0096ace00114 (patch) | |
| tree | 7f3d9062d286d568f7dcd2579f15913f3d2360f7 | |
| parent | fefc65675eb5def2a34787cffea53c88e956cca1 (diff) | |
| download | ffmpeg-88a97d660d65b8d5ac2ca719969c0096ace00114.tar.gz | |
indeo5: check for unsupported luma block type
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
| -rw-r--r-- | libavcodec/indeo5.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/libavcodec/indeo5.c b/libavcodec/indeo5.c index d0aea84f5a..b35486b106 100644 --- a/libavcodec/indeo5.c +++ b/libavcodec/indeo5.c @@ -167,6 +167,11 @@ static int decode_gop_header(IVI5DecContext *ctx, AVCodecContext *avctx) blk_size = 8 >> get_bits1(&ctx->gb); mb_size = blk_size << !mb_size; + if (p==0 && blk_size==4) { + av_log(avctx, AV_LOG_ERROR, "4x4 luma blocks are unsupported!\n"); + return AVERROR_PATCHWELCOME; + } + blk_size_changed = mb_size != band->mb_size || blk_size != band->blk_size; if (blk_size_changed) { band->mb_size = mb_size; |