Hi there,

I am trying to add a new format to libav. Long story short this is a
format which encapsulate another format (either MPEG-2 or MPEG-4). So
technically it should be sufficient to skip to the proper offset and
call the regular MOV demuxer.

I could not figure out to handle format-of-format in libav.
Technically I would like to do:


static int dicom_read_header(AVFormatContext *s)
{
  [...]compute offset to start of MPEG-4 file + seek to offset[...]
  return mov_read_header(s);
}

`mov_read_header` is not exported, so I cannot do that. How should I
handle format-of-format in libav ?

Thanks much,
--
Mathieu
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