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MP4: Fall back to parsing length from mvhd if there is no trak info #682

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@phw phw commented Jul 8, 2025

Some MP4 files don't have a "trak" atom with info about the individual audio track. In this case fall back to get the overall file duration from "mvhd".

See https://tickets.metabrainz.org/browse/PICARD-3092 for some example files.

@phw phw requested a review from lazka July 8, 2025 10:10
@phw phw force-pushed the mp4-mvhd-length branch from 5c2c132 to ddac977 Compare July 8, 2025 10:27
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