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Home » Extra libraries, Code snippets, applications etc. » Applications created with U++ » VideoPlayerCtrl using OpenGL + ffmpeg + portaudio (It was needed so I wrote one but it still needs a lot of work and review)
Re: VideoPlayerCtrl using OpenGL + ffmpeg + portaudio [message #57345 is a reply to message #57344] Thu, 15 July 2021 14:31 Go to previous messageGo to previous message
jjacksonRIAB is currently offline  jjacksonRIAB
Messages: 227
Registered: June 2011
Experienced Member
Xemuth,
Yes, you're right on all points. What I was eventually hoping to use GL for was supporting accelerated color YUV->RGB conversion and hardware scaling but as you notice it uses a cached static SwScale context and the texture resizing that I thought was accelerated actually turns out to be CPU-based anyway. It also uses an ImageBuffer as the backing buffer so it could be easily adapted to work without OpenGL at all. One major thing that that I suspect would kill performance is that decoders ideally operate already in GPU-space and GPU memory so if you start out in that area you want to stay in GPU instead of bringing rendered frames back into CPU-side and then putting them back in the GPU again as GL textures.

Sure, I'd be happy to put it on UppHub.

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