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Closing as I believe everything here has been addressed. I just now downloaded the following H265 (hevc) UHD (4K) sample (because I could not find an actual Pixel 3 to download): http://jell.yfish.us/media/jellyfish-120-mbps-4k-uhd-hevc-10bit.mkv and played it forward/backward and seeking. Although backward was awfully slow. Below shows the Info output: 1 video stream vid0 (0), id 0x0000ad: video1 hevc 3840x2160 29.97 pix yuv420p10le 902+0 frms 30.10 secs 0:00:30.10 Using "HEVC decode and/or encode hardware acceleration" is temporarily documented at: https://www.cinelerra-gg.org/download/GPU_potential_speedup.pdf |
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Thanks to spitsyn.andrey for proving this will work. I need to document usage once I understand his work. |
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This issue seems to be worked on, at least one user reported working HEVC decoding and encoding on AMD RX550 hardware and Cinelerra-GG from git: https://lists.cinelerra-gg.org/pipermail/cin/2019-May/000658.html But be aware about https://bugs.freedesktop.org/show_bug.cgi?id=110673 - "1. intra_period must >= 8 otherwise segment fault in mesa. 2. Hevc encoding only works correctly in CQP mode. I have tested CBR and VBR, both of them produce contents of garbageļ¼ green or black mostly." |
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I thought there was a chance if ffmpeg could do it. By the way, it would be useful if possible to get clarified the difference between the supported X11-OpenGL accelerated playback (effects done in hardware) vs. hardware accelerated video decoding ;) |
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No, it does not support it. Not sure if it ever will. If gg has more to say on this subject, I will report back. |
- Anonymous
