ffmpeg:ffmpeg_AV_CODEC_ID_VC1_fuzzer: Use-of-uninitialized-value in guess_mv

Project: https://git.ffmpeg.org/ffmpeg.git Detailed Report: https://oss-fuzz.com/testcase?key=5173365772451840 Project: ffmpeg Fuzzing Engine: libFuzzer Fuzz Target: ffmpegAVCODECIDVC1fuzzer Job Type: libfuzzermsanffmpeg Platform Id: linux Crash Type: Use-of-uninitialized-value Crash Address: Cra...