MP4(3)

💖 MP4(3) — MP4 File Format Library 💖

okay so bestie, we're opening the MP4(3) manual page and it's literally all about one function. no cap, it's giving very specific but very useful.

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✨ NAME ✨

MP4GetTrackDuration — get the duration of a track. periodt.

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🎀 SYNTAX 🎀

#include <mp4.h>

MP4Duration MP4GetTrackDuration(
     MP4FileHandle hFile,
     MP4TrackId trackId
)

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🦋 ARGUMENTS 🦋

• hFile — specifies the mp4 file to which the operation applies. like, the file you're doing the thing to, bestie.
• trackId — specifies the track for which the duration is desired. the specific track whose duration you want, iykyk.

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🌸 RETURN VALUES 🌸

It gives you back the duration in track time scale units of the track in the mp4 file. so the number is in track time scale units, not regular seconds or whatever. noted.

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🔥 DESCRIPTION 🔥

MP4GetTrackDuration returns the total duration of all the samples in the specified track in the mp4 file. it's literally adding up the whole track's sample duration for you. iconic behavior.

Caveat: The value is in units of the track time scale. so do not come for the units, bestie — they are track time scale units, and that's on periodt. 💅

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👑 SEE ALSO 👑

• MP4(3) — yes, go read that one too. it's the main character of this manual family. 💖

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Cisco Systems Inc. made this, it's Version 0.9, and the footer is repping MP4(3) — there's no date on the footer bestie, so that's the whole tea 💖🫶