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tvlabs / edge264

Simple H.264 decoder
BSD 3-Clause "New" or "Revised" License
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seg fault in edge264_test-cc #2

Closed stiwari closed 2 years ago

stiwari commented 2 years ago

This is on MacOS 12.2.1

./edge264_test-cc zsh: segmentation fault ./edge264_test-cc

It's probably due to the lack of input of the conformant files. I created the directory by hand, but don't know which of the 19 files I should use to test this code. Can you please tell me which ones work? If they are CAVLC that will be great.

traffaillac commented 2 years ago

Can you describe exactly the contents of your conformance directory ? The program expects pairs of .264 and .yuv files (c.f. image below).

Capture d’écran 2022-03-01 à 19 09 02

It should ignore files which it cannot decode. Files must be in Annex B format. To generate a yuv file I use JM reference decoder, but something like ffmpeg -i video.264 video.yuv might also work. Videos from conformance bitstreams that are known to work are printed in image below. They contain both CAVLC and CABAC encodings which are fully supported, although there might be a few bugs left (conformance streams are unfortunately not exhaustive).

Capture d’écran 2022-03-01 à 19 18 32

If you find a supported stream that fails to decode properly, please send me the shortest GOP containing the error (max. 5s), in annex B format (https://apple.stackexchange.com/questions/337854/software-for-splitting-or-trimming-mp4-video-without-transcoding).