[FFmpeg-devel] [ANNOUNCE] ffplay opengl branch

[Marton Balint]

Hi,

In the past few weeks I've managed to extend the current ffplay code to 
use openGL for displaying the video.

The ffplay opengl branch can be found in my github repository:
https://github.com/cus/ffplay.git

I tends to work quite well, but it's rather a proof of concept 
implementation, and obviously there is room for improvement:

- audio visualizations are not supported in opengl mode at the moment
   (rework current SDL drawing code? Enforce 24/32bit SDL video mode to
   support both opengl and non-opnengl output? Change visualization to
   avfilter?)
- only YUV pixel format is supported (how to add more? how to reuse
   avfilter auto negotiation code?)
- fix compatibility with less common opengl implementations (this stuff
   can be so ugly, I hope one day sombody will put the knowledge in
   mplayer/vlc opengl drivers to a standalone library, and we just use
   that...)
- prepare the textures in the video decode thread and not in the main
   thread (this is tricky, SDL opengl support is not multi-thread capable,
   therefore if we want to do this, we can forget SDL opengl, and start to
   use the architecture specific stuff, wgl/glx/etc, ugly, and we would
   like to keep ffplay clean...)

As you can see, the TODOs raise some questions, moving on requries some 
thinking, design, and quite a bit of time, the path is not clear. That is 
why I think this may not be the best candidate for a SOC project.

Anyway, the code is out there now, I don't think I will have the 
time to work on it in the coming weeks...

Regards,
Marton