[FFmpeg-user] Lost h/w vdpau UHD level 5.2 h264 since avconv_vdpau: use the hwcontext API to simplify code merged.

[Andy Furniss]

IIRC vdpau doesn't even go up to level 5.2 but before below merge it
worked for me.

Now it just silently falls back to s/w while still throwing the threads
warning.

I say it's 5.2 but I'll have to find/make 5.1 later to confirm it's not
just failing on UHD.

commit 6b706ce85fa56564986211b99d34e269066ca3d9
Merge: d779d8d bd49be8
Author: Derek Buitenhuis <derek.buitenhuis at gmail.com>
Date:   Wed Feb 17 16:46:44 2016 +0000

     Merge commit 'bd49be885e9ad6bae599c54473ba2fa2957eb140'

     * commit 'bd49be885e9ad6bae599c54473ba2fa2957eb140':
       avconv_vdpau: use the hwcontext API to simplify code

     Tested-by: wm4
     Merged-by: Derek Buitenhuis <derek.buitenhuis at gmail.com>


time ffm -hwaccel vdpau -i /mnt/ramdisk/x264-otc-2160p60-220M.mkv -f 
rawvideo -y /dev/null
ffmpeg version N-78583-g6b706ce Copyright (c) 2000-2016 the FFmpeg 
developers
   built with gcc 5.3.0 (GCC)
   configuration: --prefix=/usr --disable-doc --enable-gpl 
--enable-libzimg --enable-libvpx --enable-libx265 --enable-libmp3lame 
--enable-libx264
   libavutil      55. 18.100 / 55. 18.100
   libavcodec     57. 24.103 / 57. 24.103
   libavformat    57. 25.100 / 57. 25.100
   libavdevice    57.  0.101 / 57.  0.101
   libavfilter     6. 32.100 /  6. 32.100
   libswscale      4.  0.100 /  4.  0.100
   libswresample   2.  0.101 /  2.  0.101
   libpostproc    54.  0.100 / 54.  0.100
Input #0, matroska,webm, from '/mnt/ramdisk/x264-otc-2160p60-220M.mkv':
   Metadata:
     ENCODER         : Lavf57.19.100
   Duration: 00:00:08.33, start: 0.000000, bitrate: 218593 kb/s
     Stream #0:0: Video: h264 (High), yuv420p, 3840x2160 [SAR 1:1 DAR 
16:9], 60 fps, 60 tbr, 1k tbn, 120 tbc (default)
     Metadata:
       ENCODER         : Lavc57.16.101 libx264
       DURATION        : 00:00:08.334000000
Output #0, rawvideo, to '/dev/null':
   Metadata:
     encoder         : Lavf57.25.100
     Stream #0:0: Video: rawvideo (I420 / 0x30323449), yuv420p, 
3840x2160 [SAR 1:1 DAR 16:9], q=2-31, 200 kb/s, 60 fps, 60 tbn, 60 tbc 
(default)
     Metadata:
       DURATION        : 00:00:08.334000000
       encoder         : Lavc57.24.103 rawvideo
Stream mapping:
   Stream #0:0 -> #0:0 (h264 (native) -> rawvideo (native))
Press [q] to stop, [?] for help
[h264 @ 0x2055e80] Hardware accelerated decoding with frame threading is 
known to be unstable and its use is discouraged.
frame=  500 fps= 33 q=-0.0 Lsize= 6075000kB time=00:00:08.33 
bitrate=5971968.2kbits/s speed=0.554x
video:6075000kB audio:0kB subtitle:0kB other streams:0kB global 
headers:0kB muxing overhead: 0.000000%

real    0m15.259s
user    0m58.821s
sys     0m0.247s