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* vdpau: warn on HEVC due to completely broken nVidia driverswm42017-03-141-4/+7
| | | | | | I guess that's the full extent I still care about nVidia's broken garbage. In theory, we could always force the video mixer (which is the only method getting the video data that works), but why bother.
* vdpau: reject decoding of non-4:2:0wm42017-01-171-0/+5
| | | | | | | | | | | Tried to decode a High 4:2:2 file, since libavcodec code seemed to indicate that it's supported. Well, it decodes to garbage. I couldn't find out why ffmpeg.c actually appears to reject this correctly. The API seems to be fine with, just that the output is garbage. Add a hack for now.
* vdpau: use libavutil for surface allocation during decodingwm42017-01-171-44/+7
| | | | | | | | | | | | | | | | Use the libavutil vdpau frame allocation code instead of our own "old" code. This also uses its code for copying a video surface to normal memory (used by vdpau-copy). Since vdpau doesn't really have an internal pixel format, 4:2:0 can be accessed as both nv12 and yuv420p - and libavutil prefers to report yuv420p. The OpenGL interop has to be adjusted accordingly. Preemption is a potential problem, but it doesn't break it more than it already is. This requires a bug fix to FFmpeg's vdpau code, or vdpau-copy (as well as taking screenshots) will fail. Libav has fixed this bug ages ago.
* build: prefix hwaccel decoder wrapper filenames with hw_wm42017-01-171-0/+189
Should have done this a long time ago. d3d.c remains as it is, because it's just a bunch of helper functions.