Michael Niedermayer 6a69f04927 avcodec/vc1dec: Allocate only as much space as is unescaped ...

Fixes: OOM
Fixes: 18137/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_VC1IMAGE_fuzzer-5723834900021248
Fixes: 20037/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_VC1IMAGE_fuzzer-5683758976204800

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

2020-01-18 18:35:57 +01:00

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