[Cin] Removal of AVStream.*index_entries*

[Andrew Randrianasulu]

В сообщении от Friday 06 November 2020 01:40:34 вы написали:
> Quoting Andrew Randrianasulu (2020-11-05 17:53:51)
> > В сообщении от Thursday 05 November 2020 14:57:22 вы написали:
> > > Hi,
> > > Quoting Andrew Randrianasulu (2020-10-30 21:23:22)
> > > > Hello, Anton. 
> > > > 
> > > > Sorry for writing to you directly and not to ffmpeg-devel, I'm not subscribed to it (just reader via web interface). You can copy my email there if you want.
> > > > 
> > > > In https://git.ffmpeg.org/gitweb/ffmpeg.git/commit/cea7c19cda0ea1630ae1de8c102ab14231b9db10 you moved nb_index_entries to private header, yet as it turned out  this code was used by CinelerraGG:
> > > > 
> > > > https://git.cinelerra-gg.org/git/?p=goodguy/cinelerra.git;a=blob;f=cinelerra-5.1/cinelerra/ffmpeg.C;h=97b6698acbb2ffc342f93049dbd54537d0a39235;hb=HEAD
> > > > 
> > > > line 723 for example ..
> > > > 
> > > > Do you have any alternative route for getting this info?
> > > > I hacked sources of CinlerraGG a bit by directly including libavformat's internal header, but it was not very good idea becaiuse something conflicted when I added it to header file, and required alteration of yet another file even if I added it only to ffmpeg.C
> > > > 
> > > > My hack attached ...
> > > 
> > > frankly, that code looks like a horrible pile of hacks. I cannot, from a
> > > quick glance, tell what is it using those private fields for and why it
> > > doesn't just call avformat_seek_file() like any other well-behaved
> > > program would.
> > 
> > Good question. I think code  'evolved' this way, because this is
> > non-linear video editor (so, playback/decoding position can jump
> > randomly forward and backward). Also, some format seeks better than
> > others. May be other editors work-around  this problem differently. Or
> > their users just adviced to avoid hard-to-edit formats.
> 
> I think ffms2 <https://github.com/FFMS/ffms2> also operates under
> similar constraints, but it does not access private fields. Maybe you
> could draw some inspiration from there.

Thanks, I compiled it once for Aegisub, and forgot about it :/

> 
> > 
> > Can I forward your question about this code to our mail list?
> 
> Sure. I can also be reached on IRC in freenode/#ffmpeg-devel, if anyone
> wants to discuss this further.
> 

Forwarding ...