MP4(3)

💖 MP4(3) — the MP4 File Format Library page, bestie edition 💖

okay so you're in the MP4 File Format Library section of the manual, section 3, and we're about to talk about one very specific little function. it's giving "one job, does it well." periodt.

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✨ NAME ✨

MP4GetHintTrackReferenceTrackId — get the reference track id for a hint track 🎯

like. that's it. that's the whole thing. she's a getter. she gets.

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🌸 SYNTAX 🌸

#include <mp4.h>

MP4TrackId MP4GetHintTrackReferenceTrackId(
     MP4FileHandle hFile,
     MP4TrackId hintTrackId
)

copy it exactly, bestie, don't freestyle the signature 💅

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🎀 ARGUMENTS 🎀

• hFile — specifies the mp4 file to which the operation applies. yes, the whole file. she needs to know where the vibes live.
• hintTrackId — specifies the hint track to which the operation applies. the specific hint track we're asking about. main character of this call, fr fr.

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🦋 RETURN VALUES 🦋

upon success, you get back the track id of the reference media track — iconic, we love a happy ending 💖

upon an error, you get MP4_INVALID_TRACK_ID. no cap. that's the sad path. 😭

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🌈 DESCRIPTION 🌈

so MP4GetHintTrackReferenceTrackId gets the track id of the reference media track associated with the specified hint track. that's the entire plot. no subplots, no drama, just a clean little lookup 🫶

the way that a hint track can point at a media track and this function is the one that tells you which one?? yeah. obsessed. ✨

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👑 SEE ALSO 👑

• MP4(3)
• MP4AddHintTrack(3)

go read those too, iykyk 📚

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and that's the page, bestie!! brought to you by Cisco Systems Inc., version 0.9 — yes, version 0.9, she's vintage but she slays 💅 stay hydrated, read your man pages, and may all your track ids be valid 🌟