MP4(3)

💖 MP4AddRtpImmediateData 💖

okay bestie, so we're in the MP4(3) page from the MP4 File Format Library and this one's all about slipping a lil extra something into your RTP packets. no cap, it's a whole vibe. 🦋

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✨ NAME ✨

MP4AddRtpImmediateData — literally just: add immediate data to an RTP packet. that's the whole job. she's simple, she's iconic, she serves. 👑

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🌸 SYNTAX 🌸

first things first, you gotta pull her in:

#include <mp4.h>

then here's the summoning circle:

bool MP4AddRtpImmediateData(
     MP4FileHandle hFile,
     MP4TrackId hintTrackId,
     u_int8_t* pBytes,
     u_int32_t numBytes
);

look at her. four little args. so demure. so mindful. 💅

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🎀 ARGUMENTS 🎀

• hFile — the mp4 file you're doing this whole operation to. which file? yeah, this one. 🗂️
• hintTrackId — the hint track that this operation applies to. you gotta tell her which track is the main character here. ✨
• pBytes — a pointer to the immediate data that should get included in the current RTP packet. it's a pointer, so be normal about it. 🙈
• numBytes — how long that immediate data is, in bytes. the length. the amount. the size. numBytes fr fr. 📏

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🫶 RETURN VALUES 🫶

• success? you get true (1). slay. 🎉
• error? you get false (0). and you will simply have to deal. 😭

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🔥 DESCRIPTION 🔥

so MP4AddRtpImmediateData adds immediate data to the current pending RTP packet. like, the one that's still waiting. the one that hasn't gone out the door yet. ⏳

typically, this is what you use to add RTP payload specific headers to RTP packets. that's the use case, that's the moment, that's her purpose. 💖

⚠️ okay so here's the part where you actually pay attention bestie: the size of a block of immediate data is limited to 14 bytes. fourteen. one-four. that's the cap. 💀

but wait — plot twist — if you need more space, you can add multiple immediate data blocks. so like, she's limited but she's not limited limited. stack 'em up, queen. 🧚

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🌈 SEE ALSO 🌈

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

(iykyk, go read the whole family. the lore is deep. 📚)

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and that's the tea, bestie 🍓 — this page came to you straight from Cisco Systems Inc., Version 0.9, and she's been serving that MP4(3) energy this whole time. go forth and add your immediate data, 14 bytes at a time. mwah. 💜✨