[FFmpeg-devel] [HACK] mov.c: Handle MPEG-in-MOV (#241 and friends)

[Hendrik Leppkes]

On Tue, Oct 16, 2012 at 5:18 PM, Petter Ericson
<petter.ericson at codemill.se> wrote:
> Greetings,
>
> Attached is a patch that handles the files provided in #241 and duplicates.
> Needless to say, it is extremely hacky and would benefit from improvements,
> but as it stands, it checks for the two places I have found the m1s tag, and
> forces continued probing until mpegps_probe gets enough data to find its
> own header. I considered using the mpegps demuxer as a "subprocess" simliar
> to how DVDemuxer is used, but this proved to be too much trouble for me,
> given that it really isn't made to work in that way, and the above
> approach got the desired result.
>
> Improvements (rudimentary MOV parsing in the probe?) very welcome.
>

The fixed offset of the tag in the file seems rather arbitrary to me.
Did you confirm on multiple samples that its in that exact spot every
time?