I need the file structure of MPEG-4 AVC video

[ahrouhi]

Any one who knows a MPEG-4 AVC file structure format, to enable me navigate inside the file in binary mode, reply my post. I am familiar with theory of MPEG-4 AVC techniques and H.264 standard , but knowng the technique of standard is not enough to navigate inside the binary file. I should implement my idea and so I need to navigate inside video file. I need to know what’s the header start and end symbol, frames start and end symbols and how intra prediction data placed inside I-frame bit-stream.

[ahrouhi]

At the moment i am trying to find out the file generation algorithm by re-engineering the codes of open source MPEG-4 softwares such as JM, X264 and FFMPEG. Its really really hard job, Millions of line of codes should be interpreted. If anyone help me , i would be very gratefull.

[Ai Haibara]

Why not just email the people behind those programs and discuss it with them? It would save you a lot of time and effort going through the code of all the programs, trying to find what you're looking for.

[ahrouhi]

Thanks for your suggestion, i emailed them but they seems very busey or assume my email is spam, because no answer received.

[Cornucopia]

MP4 is based on QT/MOV. Use an atom viewer to parse the segments.

Scott

[ahrouhi]

Would you please tell me about atom viewer? Please note that i dont want to play or convert the video file. I want to navigate inside the binary file. Can atom viewer!!! help me?

[Cornucopia]

It's been a while, but on the Apple website there was a Quicktime utility called "Atom Viewer" or "Atom Dump" or something like that. It parses the file and shows listing of the "atoms", which is Apple-speak for the header & payload fields/chunks.

You'd have to also check with apple for a doc that explains the meaning of the various atom elements.

Scott