Le 5 sept. 2013 à 17:47, wm4 <[email protected]> a écrit : > On Thu, 5 Sep 2013 13:53:46 +0300 > Oleg <[email protected]> wrote: > >> 3. VDA decoded frames could be rendered without copying frame to RAM, using >> OpenGL. Anyway ffmpeg stores all frames in RAM, so h264_vda decoder copies >> each frame to RAM that's way h264_vda could be slower then classical h264 >> decoder. > > Just to make sure there's no confusion: h264_vda is a different > interface from h264 + VDA hwaccel. It's true that h264_vda forces > copying video data to RAM. But h264 + hwaccel does not. > _______________________________________________ > Libav-user mailing list > [email protected] > http://ffmpeg.org/mailman/listinfo/libav-user
Hi, What is "h264 + hwaccel" ? What is the difference between h264_vda and h264_vdpau that are listed among FFmpeg's decoders? And... is H264 VDA the only hwaccel that doesn't require many modifications to be used? (because of how it works => copying the data back to RAM) Regards, Lucas _______________________________________________ Libav-user mailing list [email protected] http://ffmpeg.org/mailman/listinfo/libav-user
