avcodec/cinepak: Skip empty frames
authorMichael Niedermayer <michael@niedermayer.cc>
Tue, 17 Apr 2018 00:13:43 +0000 (02:13 +0200)
committerMichael Niedermayer <michael@niedermayer.cc>
Mon, 16 Jul 2018 17:06:26 +0000 (19:06 +0200)
commit5d42300731b1ffdd52c27e198bb724f2c3918f23
treeed9ff5b07605dfd340ad6f91668cb6d5d32e35cc
parent4b0181dc009df6e8791417b6f7e7fd65bd284bf0
avcodec/cinepak: Skip empty frames

Speeds up decoding from 3 to 0.1 seconds for 6302/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_CINEPAK_fuzzer-5626371985375232
Fixes: Timeout

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 9033920bec9ccf17de205fc17c2b330906b200f5)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
libavcodec/cinepak.c