ffmpeg - How to decode frames from MDAT atom extracted from mp4 video -

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i new video codecs , learning video file format specifications. have read quicktime file format specifications here, , mp4 file format (which similar) here. there atoms such ftype, moov, mdat etc. mdat atom contains actual audio , video data. moov atom contains information how extract data mdat, gives references chunks (samples).

i want extract video samples in mdat atom video file without using tool such ffmpeg, or juggler etc. can write own code this. problem is, if can locate video data (samples) in mdat using information moov, these samples compressed. , need uncompress these frames. question can uncompress samples extracted mdat , actual video frames ?

tools such xuggler, ffmpeg etc used extract frames video files. here want extract samples(for video data) mdat writing own code, want uncompress using tool. don't want write codecs.

can please me this....!

thanks...

ffmpeg collection of libraries. libavformat used read , write files(what doing own code), libavcodec can used on own decode samples.


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