ALAC, Atmos Songs Reporting File Length while playing is to short.

[ViPiMP]

Tried literally everything.
Checked every dependency of gamdl.
Everything seems alright.
But the music stream inside the m4a is longer as reported in the metadata.
So with most players it cuts out.

[bascurtiz]

I've fixed this issue in my variant.

fix (alac): resolution for incorrect duration tags in ALAC downloads

• Updated amdecrypt.py to correctly patch both timescale and duration in mdhd boxes (support for v0 and v1)
• Added tag filtering in downloader_base.py and interface_song.py to prevent preview-related tags (e.g., ©dur, iTunSMPB) from overwriting full-track metadata

code difference:
bascurtiz/orpheusdl-applemusic@2fd63b1

comparison before/after fix on a playlist of 300 tracks:
https://docs.google.com/spreadsheets/d/1X7tnAXRS6jBclHqCh5lj7UVbOXvrS9s2fbOkUDJbQh4/edit?usp=sharing

[MDSVJ]

Might be worth opening a PR.

[glomatico]

I've fixed this issue in my variant.
fix (alac): resolution for incorrect duration tags in ALAC downloads

• Updated amdecrypt.py to correctly patch both timescale and duration in mdhd boxes (support for v0 and v1)
• Added tag filtering in downloader_base.py and interface_song.py to prevent preview-related tags (e.g., ©dur, iTunSMPB) from overwriting full-track metadata

code difference: bascurtiz/orpheusdl-applemusic@2fd63b1
comparison before/after fix on a playlist of 300 tracks: https://docs.google.com/spreadsheets/d/1X7tnAXRS6jBclHqCh5lj7UVbOXvrS9s2fbOkUDJbQh4/edit?usp=sharing

Might be worth opening a PR.

plz do it