Ayrton Sparling

This should be fixed in the next major release of h265ize.

Are you guys using the latest version of ffmpeg? What does `ffmpeg -version` return?`

My first preliminary search lead to results that this bug had been fixed long ago. Please ensure your ffmpeg versions are up to date.

Can you guys try running this with the `--debug` flag?

It seems mkvextract doesn't want to work with your video. Run h265ize with `--disable-upconvert`.

It looks like your mkv doesn't match the mkv spec. Strange. I suggest stripping the video and subtitles to a new file using `-map` and seeing if you can somehow...

Your right about `ffmpeg -n` causing the error. But that last command you sent should work. Idk why ffmpeg is erroring out on it. Make sure your ffmpeg is up...

Just read about you compiling from source. Try a stable release.

No there is not.

That option used to exist but got removed for some reason. Can I suggest trying [nmmes-cli](https://github.com/NMMES/nmmes-cli). It's the successor to h265ize and offers close to all the features h265ize does...