Michael Niedermayer fe0416f8a1 avcodec/jpeg2000dec: Skip DWT if nothing is coded ...

Improves speed in uncommon case

Fixes: Timeout
Fixes: 10964/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_JPEG2000_fuzzer-5132066034286592

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

2018-12-08 17:01:03 +01:00

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