ffmpeg | branch: release/3.2 | Michael Niedermayer <mich...@niedermayer.cc> | Sat Jun 24 13:45:35 2017 +0200| [a2bde1363c9313d025fb5deed6caead1b0b04b78] | committer: Michael Niedermayer
avcodec/mpeg4videodec: Fix GMC with videos of dimension 1 Fixes: runtime error: shift exponent -1 is negative Fixes: 2338/clusterfuzz-testcase-minimized-5153426541379584 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> (cherry picked from commit 4976a3411f71518d17a57e373b62517f066648fd) Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=a2bde1363c9313d025fb5deed6caead1b0b04b78 --- libavcodec/mpeg4videodec.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavcodec/mpeg4videodec.c b/libavcodec/mpeg4videodec.c index b057466f19..5dfd2954f7 100644 --- a/libavcodec/mpeg4videodec.c +++ b/libavcodec/mpeg4videodec.c @@ -171,7 +171,7 @@ static int mpeg4_decode_sprite_trajectory(Mpeg4DecContext *ctx, GetBitContext *g int a = 2 << s->sprite_warping_accuracy; int rho = 3 - s->sprite_warping_accuracy; int r = 16 / a; - int alpha = 0; + int alpha = 1; int beta = 0; int w = s->width; int h = s->height; _______________________________________________ ffmpeg-cvslog mailing list ffmpeg-cvslog@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog
