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 20:59:40 +0000 (22:59 +0200)
commit2324ef1ff32e5effd6f295bca80580ae4816be0b
tree4789802b905ddd70e412108862bbb54e40fde0d2
parentc705476c4788ab7c5e4c4ee00aab9bbc038cf700
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>
libavcodec/cinepak.c