avcodec/cinepak: move some checks prior to frame allocation
authorMichael Niedermayer <michael@niedermayer.cc>
Tue, 17 Apr 2018 00:13:42 +0000 (02:13 +0200)
committerMichael Niedermayer <michael@niedermayer.cc>
Thu, 19 Apr 2018 23:53:41 +0000 (01:53 +0200)
commitdf56bc18efd2afb10e1751e6be1f731d3da54786
tree0b4cb1add13193b16ce32eba6f26324c17fca1a2
parentef99025603913c3dcd6c716f308b83cbf7077ef7
avcodec/cinepak: move some checks prior to frame allocation

Speeds up decoding from 8 to 3 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 2324ef1ff32e5effd6f295bca80580ae4816be0b)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
libavcodec/cinepak.c