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Zane van Iperen authored
Causes a divide-by-zero in the rare case where: - the file has an audio stream, - the first audio frame isn't within the first BRP_BASF_LOOKAHEAD frames, - an audio frame is encountered later, and - its chunk header (except num_blocks) contains all zeros (matching the uninitialised structure in the context) The decoder will discard any garbage data, so the check isn't really needed. Fixes: division by 0 Fixes: 26667/clusterfuzz-testcase-minimized-ffmpeg_dem_ARGO_BRP_fuzzer-5645146928185344.fuzz Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpegSigned-off-by: Zane van Iperen <zane@zanevaniperen.com>