virtualenv/FFmpeg
1
0
Fork 0
mirror of https://github.com/FFmpeg/FFmpeg.git synced 2024-12-23 12:43:46 +02:00
Code Issues Releases Activity

vc1dec: odd sized sprites are unsupported

Browse Source 
It should be easy to add support but without a sample we would
not know if they work.

Fixes out of array reads

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2013-03-06 00:03:58 +01:00
parent d929364814
commit 058e1f8dd7
1 changed files with 5 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
libavcodec/vc1dec.c
View File

@ -5292,6 +5292,11 @@ static av_cold int vc1_decode_init(AVCodecContext *avctx)
v->sprite_height > 1 << 14 || v->sprite_height > 1 << 14 ||
v->output_width > 1 << 14 || v->output_width > 1 << 14 ||
v->output_height > 1 << 14) return -1; v->output_height > 1 << 14) return -1;
if ((v->sprite_width&1) || (v->sprite_height&1)) {
av_log(avctx, AV_LOG_ERROR, "odd sprite\n");
return AVERROR_PATCHWELCOME;
}
} }
return 0; return 0;
} }