[Libav-user] Demuxing mp4 file in ffmpeg

Mayank Agarwal mayank77fromindia at gmail.com
Wed Jan 15 00:37:26 CET 2014


I am trying to understand the demuxing o mp4code of mp4 file in ffmpeg.

I have the following doubts.

1.There is no ff_mp4_demuxer for mp4 demuxing so how
the functions like read_packet,read_header which are there
in vtable for other demuxers(like avi/asf) are called in mp4 case.

2.Please help me in understanding read_frame_internal.
wher it is copying the file data to AVPacket *pkt.

3.Also in mp4 file case where it is assigning
s->iFormat->name to mp4 so that appropriate demuxer functions can be called

4.Also if for mp4 it is calling mpegts demux functions.

Thanks for your help.

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