[FFmpeg-user] Demuxing HLS stream of fmp4 segments

[Dennis Mungai]

On Fri, 17 Apr 2020, 16:11 vectronic, <hello.vectronic at gmail.com> wrote:

>
>
> > On 17 Apr 2020, at 13:26, Pedro Pedrosa <pedrojvpedrosa at gmail.com>
> wrote:
> >
> > Hello all
> >
> > I'm trying to demux an HLS stream containing fmp4 segments. It works fine
> > if I demux from the start of the input but as soon as I add the -ss flag
> to
> > skip to a timecode it no longer produces any output.
> >
> > I have tested on my own ffmpeg-generated streams and also on a public
> file
> > at
> >
> https://bitmovin-a.akamaihd.net/content/MI201109210084_1/m3u8s-fmp4/f08e80da-bf1d-4e3d-8899-f0f6155f6efa_video_270_400000.m3u8
> >
> > Exact command that does not work: ffmpeg -ss 00:03:00 -i
> >
> https://bitmovin-a.akamaihd.net/content/MI201109210084_1/m3u8s-fmp4/f08e80da-bf1d-4e3d-8899-f0f6155f6efa_video_270_400000.m3u8
> > -y -frames 1 -f image2 test.jpg
> >
> > Usage that works (omit -ss): ffmpeg -i
> >
> https://bitmovin-a.akamaihd.net/content/MI201109210084_1/m3u8s-fmp4/f08e80da-bf1d-4e3d-8899-f0f6155f6efa_video_270_400000.m3u8
> > -y -frames 1 -f image2 test.jpg
> >
> > Any help would be greatly appreciated
> >
>
> I’ve had success using the patch I submitted against this ticket:
>
> https://trac.ffmpeg.org/ticket/7359 <https://trac.ffmpeg.org/ticket/7359>
>
>
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That patch needs to be split into two, with commit messages explaining what
each change does, as Michael Niedermayer explained.

Apply the recommendations mentioned therein and the ffmpeg-devel mailing
list will review the patch.