MP4(3)

📦 version 2.1.0, in fedora 43, fedora 44

💖 MP4GetRtpPacketBFrame — like, the MP4 library, bestie 💖

okay so we're deep in the MP4 file format library manual (that's the manual name, cutie — MP4(3), say it with your chest) and today's main character is a tiny lil function that just wants to tell you ONE thing about ONE RTP packet. no cap.

✨ NAME ✨

MP4GetRtpPacketBFrame — Get the B frame flag of an RTP packet

🌸 SYNTAX 🌸

#include <mp4.h>

int8_t MP4GetRtpPacketBFrame(
     MP4FileHandle hFile,
     MP4TrackId hintTrackId,
     u_int16_t packetIndex
)

🎀 ARGUMENTS 🎀

  • hFile — the mp4 file this whole operation is happening to. your file. your vibe. your responsibility 🫶
  • hintTrackId — the hint track this operation applies to. yes bestie, hint tracks specifically, that's the whole point ✨
  • packetIndex — the exact packet we're talking about. which one? that one. the one at this index 💅

💀 RETURN VALUES 💀

  • on the good path? you get the state of the B frame flag for the packet you asked about. slay.
  • on the bad path? you get -1. it's giving error energy. 😭

🔥 DESCRIPTION 🔥

So like, MP4GetRtpPacketBFrame returns the state of the B Frame flag of an RTP packet. that's it. that's the job. no notes.

if you wanna know what this flag actually means though, go read MP4AddRtpHint — it's got the full description. iykyk 💖

ngl this function is a getter and a getter only. it does not set anything. it does not add anything. it looks at a packet and reports back. periodt.

🦋 SEE ALSO 🦋

and that's the whole page, bestie!! ✨ this one came from Cisco Systems Inc., it's Version 0.9, and yeah the footer says MP4(3) again because the manual name is forever. mwah. 💅🎀

📦 where this page comes from