MP4(3)

💖 MP4AddRtpSampleData — it's giving "attach the media data to the RTP packet" ✨

okay bestie, so this is a page from the MP4 File Format Library manual, section 3 — and today's main character is MP4AddRtpSampleData. she adds media sample data to an RTP packet. that's literally the whole job description and she ate 💅

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🌸 NAME 🌸

MP4AddRtpSampleData — add media sample data to an RTP packet 🎀

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✨ SYNTAX ✨

#include <mp4.h>

bool MP4AddRtpSampleData(
     MP4FileHandle hFile,
     MP4TrackId hintTrackId,
     MP4SampleId sampleId,
     u_int32_t dataOffset,
     u_int32_t dataLength
);

yes the include is <mp4.h>, no she's not changing it, don't even ask 🫶

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🦋 ARGUMENTS 🦋

• hFile — which mp4 file we're doing the operation on. that's your girl. the file in question 💖
• hintTrackId — the hint track this operation applies to. hint track said "me, I'm the one" 👑
• sampleId — the reference media sample id that the media data is gonna be pulled from. like, the source sample. the origin story 🌟
• dataOffset — the byte offset inside that specified media sample where we start grabbing data for the current RTP packet. precision, periodt 🎯
• dataLength — how many bytes of media data get included in the current RTP packet. length check, slay 📏

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💀 RETURN VALUES 💀

• on success? true (1) — we love a happy ending 😭💖
• on error? false (0) — not the vibe, but at least she's honest 🙈

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🔥 DESCRIPTION 🔥

so MP4AddRtpSampleData adds a reference in the current pending RTP packet to the media data in the specified media sample of the reference media track.

🚨 the way that this is a reference, not a copy, of the media data. no duplicating, no photocopying, just pointing at the real thing. iykyk ✨

that's it. that's the function. she's small but she's important 💅

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🌈 SEE ALSO 🌈

• MP4(3)
• MP4AddRtpPacket (3)
• MP4AddRtpImmediateData (3)

go read your sisters' pages, they're iconic too 💜

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and that's the whole page bestie!! this manual page is brought to you by Cisco Systems Inc., running Version 0.9, and yes it's filed under MP4(3) — so when you cite her, cite her right. mwah 🎀💖✨🦋