[FFmpeg-devel] Would like to work on lavf-based concatenation tool for GSoC qualification

Geza Kovacs gkovacs
Thu Apr 2 17:01:01 CEST 2009

On Thu, 2009-04-02 at 14:17 +0200, Michael Niedermayer wrote:
> On Thu, Apr 02, 2009 at 05:09:16AM -0400, Geza Kovacs wrote:
> > On Wed, 2009-04-01 at 13:50 -0700, Baptiste Coudurier wrote:
> > > Yes, please enhance ffmpeg binary. You can put code in a separate file,
> > > but the goal is to enhance ffplay and ffmpeg binaries, so factorizing
> > > the code is likely needed.
> > > 
> > 
> > I've attached a patch that adds said functionality as an ffmpeg
> > command-line option. I assume there's a more clean way to do this than
> > by introducing a conditional at the beginning of av_encode(); I assume I
> > would probably want to modify opt_format and opt_output_file in the
> > final version instead, but for the sake of time this seemed to work best
> > with the code I had already written for now.
> Id like to clarify that the goal of the qualification tasks is to
> get code into ffmpeg svn that is usefull for ffmpeg
> hacks will not reach svn

Thanks for the response, that was exactly what I was concerned about.
What, then, is considered a "non-hack"-ish way of accomplishing this? In
this case, one has to override the output format settings based on
information from the input format settings, so I don't believe this
could be done optimally within opt_format or opt_output_file, or whether
this should be done, in a "non-hack"-ish way, within opt_format() and
opt_output_file() or instead within av_encode().

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