RepoMirrors
/
ffmpeg
mirror of https://git.ffmpeg.org/ffmpeg.git
1
0
Fork 0
Code Issues Projects Releases Wiki Activity

Prevent NULL dereferences when missing the reference frame in the Electronic Arts CMV decoder. 

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Laurent Aimar 2011-10-01 00:45:00 +02:00 committed by Michael Niedermayer
parent e9064c9ce8
commit 113d7be624
1 changed files with 4 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
libavcodec/eacmv.c
View File

@ -110,9 +110,10 @@ static void cmv_decode_inter(CmvContext * s, const uint8_t *buf, const uint8_t *
}else{ /* inter using last frame as reference */
int xoffset = (buf[i] & 0xF) - 7;
int yoffset = ((buf[i] >> 4)) - 7;
cmv_motcomp(s->frame.data[0], s->frame.linesize[0],
s->last_frame.data[0], s->last_frame.linesize[0],
x*4, y*4, xoffset, yoffset, s->avctx->width, s->avctx->height);
if (s->last_frame.data[0])
cmv_motcomp(s->frame.data[0], s->frame.linesize[0],
s->last_frame.data[0], s->last_frame.linesize[0],
x*4, y*4, xoffset, yoffset, s->avctx->width, s->avctx->height);
}
i++;
}