[FFmpeg-devel] [SCISYS Possible Spam] Re: [SCISYS Possible Spam] Re: [PATCH v5] avformat/mov: Memory optimization with QuickTime/MP4

[Jörg Beckmann]

> -----Ursprüngliche Nachricht-----
> Von: ffmpeg-devel <ffmpeg-devel-bounces at ffmpeg.org> Im Auftrag von Carl
> Eugen Hoyos
> Gesendet: Montag, 6. Januar 2020 15:24
> An: FFmpeg development discussions and patches <ffmpeg-devel at ffmpeg.org>
> Betreff: [SCISYS Possible Spam] Re: [FFmpeg-devel] [SCISYS Possible Spam]
> Re: [PATCH v5] avformat/mov: Memory optimization with QuickTime/MP4
> 
> Am Mo., 16. Dez. 2019 um 12:13 Uhr schrieb Jörg Beckmann
> <Joerg.Beckmann at scisys.com>:
> >
> >
> > > -----Ursprüngliche Nachricht-----
> > > Von: ffmpeg-devel <ffmpeg-devel-bounces at ffmpeg.org> Im Auftrag von
> > > Carl Eugen Hoyos
> > > Gesendet: Montag, 16. Dezember 2019 11:50
> > > An: FFmpeg development discussions and patches
> > > <ffmpeg-devel at ffmpeg.org>
> > > Betreff: [SCISYS Possible Spam] Re: [FFmpeg-devel] [PATCH v5]
> avformat/mov:
> > > Memory optimization with QuickTime/MP4
> > >
> > > Am Mo., 9. Dez. 2019 um 16:05 Uhr schrieb Jörg Beckmann
> > > <Joerg.Beckmann at scisys.com>:
> > > >
> > > > Invents a new option "discard_fragments" for the MP4/Quicktime/MOV
> decoder.
> > > >
> > > > If the option is not set, nothing changes at all. If it is set,
> > > > old fragments are discarded as far as possible on each call to switch_root.
> > >
> > > > For pure audio streams, the memory usage is now constant.
> > >
> > > Is it possible to detect this case?
> > > If possible, the new option could have an "auto" setting.
> >
> > I'm not sure whether it really works with all possible stream types.
> 
> Why is it not possible to detect that the stream only contains audio?

Oh sorry, I misunderstood your question. Of course it is possible to detect that it contains only audio. I thought you suggested to detect that is fragmented. I'll take a look into the sources to find an appropriate location for the check and send the modified patch again. But it will take a few days.

Do you think, "auto" should be the default value?

> 
> Carl Eugen

Jörg