MP4(3)

💖 MP4SetTrackEditDwell 💖

okay bestie, so this one lives in the MP4 File Format Library (that's the MP4(3) manual, hi hello 👋) and it's literally the lil function that sets the dwell value of a track edit segment. say that five times fast, i dare you 🫶

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✨ NAME ✨

MP4SetTrackEditDwell — set the dwell value of a track edit segment 🌸

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✨ SYNTAX ✨

#include <mp4.h>

bool MP4SetTrackEditDwell(
     MP4FileHandle hFile,
     MP4TrackId trackId,
     MP4EditId editId,
     bool dwell
);

look at her. four args, one bool back. clean. iconic. no notes 💅

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✨ ARGUMENTS ✨

• hFile — the mp4 file we're doing the operation on. the main character of the file world 👑
• trackId — which track we're touching. pick your fave ✨
• editId — which edit segment we mean. > ⚠️ caveat bestie, this one's a trap: the first edit has id 1, NOT 0. not me almost indexing from zero 😭 it's 1. it's literally 1. remember it. iykyk.
• dwell — the brand new dwell value you're setting. this is the whole point of the function, slay 🎀

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✨ RETURN VALUES ✨

• on success → true (1) 🎉
• on error → false (0) 💀

that's it. that's the whole vibe check.

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✨ DESCRIPTION ✨

so MP4SetTrackEditDwell sets the dwell value of the specified edit segment from the specified track. periodt. 💜

and here's what the value actually means, because this part matters:

• a value of true (1) means that during this edit segment, the media will be paused 🛑 like. full stop. frozen. napping.
• a value of false (0) means that during this edit segment, the media will be played at its normal rate ▶️ business as usual, no funny business.

so basically you're telling the edit segment: are we pausing here or are we moving at normal speed? two options. that's the whole decision. lowkey elegant fr fr 🌈

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✨ SEE ALSO ✨

• MP4(3)
• MP4GetTrackEditDwell(3) — the getter! the little sister! go read her too 🦋

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okay and one final cute sign-off for the credits because we always give credit: this lovely page comes from Cisco Systems Inc., sitting at Version 0.9, and it's chillin' in the MP4(3) section of the manual. bye bestie, go set some dwell values 💖✨🎀🦋🌸💅🫶