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[legume]

Ahh, thanks, I didn't know that one - so my concern there was wrong.
A bit of messing around I guess to replicate the "shortcut" convinience...

[legume]

Well you didn't get to test the crash if you didn't get to use vaapi for whatever reason!...

[legume]

You should in practice use vdpau with AMD currently for decode.
ffmpeg vaapi decode leaks mem.
mpv recently removed vaapi dec + opengl presentation...

[legume]

It's known that AMD don't ramp up the clocks for UVD - They don't need to for playback.

R9 285 on old Phenom II x4 965be box.

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[legume]

Did you enable it in config? If not -

make menuconfig / whatever go to drivers -> graphics support -> display engine configuration...

[legume]

Compiled OK for me - but then it could be compiler version.

In case you didn't - make menuconfig / whatever go to drivers -> graphics...

[legume]

ffmpeg doesn't have all the needed patches merged from libav yet. With them/testing with avconv there are still some issues that gstreamer doesn't have....

[legume]

Thanks, that confirms it, to get the intel vid to match with mpv you would need

mpv --vf=format=colorlevels=full:colormatrix=bt.601 --vo=opengl

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[legume]

On this point I guess that using vaapipostproc format=i420 is causing the issue - nice if it's h/w accelerated, but not nice because it seems to be using...

[legume]

Yea, I can clearly see the difference from pausing/overlaying in the first second, there are I guess other ways I can infer what matrix each is using,...

[legume]

Thanks, so h264 is quite similar to omx, no b frames or cabac fixed qp, 26 for intel, 28 omx.

On the colors, looking at the yuv the intel...

[legume]

Strong green and red are the most noticeable difference between 601 and 709 mix ups. There's also the chance of some full range vs limited range difference....

[legume]

So it seems that both gstreamer screencap and bgr0 > nv12 conversion are faster that ffmpeg. So I can just cap at 1080p60 with omx. 68 fps seems to...

[legume]

Neither omx or vaapi currently do high - so try omitting the
! "video/x-h264,profile=high" ! It messes up my test with that command -...

[legume]

That's not really what I meant when talking about benching screencap + bgr0 -> nv12, but FWIW on that very very short sample using s/w decode (your...