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>
Thu, 19 Apr 2018 23:53:41 +0000 (01:53 +0200)
commitecb375684d7b5a29ee208977259ffd65b951015f
tree069db87ee3a3531fc06dec1257abd6b76ec44504
parentdf56bc18efd2afb10e1751e6be1f731d3da54786
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