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slhck / ffmpeg-normalize

Audio Normalization for Python/ffmpeg
MIT License
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Metadata flags like "Commentary" or "Visual Impaired" get lost. #265

Open joshinils opened 3 months ago

joshinils commented 3 months ago

Using https://mkvtoolnix.download/downloads.html I can edit the flags for different audio tracks.

For files where I've set the Commentary or Visual Impaired flags, they are lost after normalization.

To reproduce you can set the commentary flag on an MKV file and normalize, afterward it is back to the pre-filled value of "No" in mkvtoolnix-gui.

joshinils commented 3 months ago

Thankfully I've also renamed the tracks, so the info is not really lost for all the files I have. But I'd have to programmatically parse my track titles and re-set the flags, which I'm willing to do in future anyway, since I want to also set the "original language" flag for all of them.

slhck commented 3 months ago

Could you please supply a sample and the full debugging output for troubleshooting purposes?

This is, essentially, an ffmpeg issue. If metadata is not copied despite setting the metadata copy flag, there might be an alternative solution.