[mythtv-users] vdpau errors using nvidia-drivers-381.22

[Michael Heironimus]

On Thu, Jul 06, 2017 at 09:17:06PM -0400, Tom Dexter wrote:
> I'm running under Gentoo using a 4.9.16 kernel on x86. I started to
> notice a growing number of h264 videos that wouldn't play correctly. I
> would get a flickering video, oddly enough displaying what appeared to
> be the last frame of the *previous* video or recording I played. It
> finally came up enough that I started looking into it. It turned out
> the frontend was logging these errors repeatedly:
> 
> 2017-07-06 20:34:32.133432 E [1493/18682] Decoder
> mythrender_vdpau.cpp:1596 (Decode) - VDPAU: Error at
> mythrender_vdpau.cpp:1596 (#20, The size of a supplied object does not
> match the object it is being used with.)

<snip>

I saw that and found that it seemed to happen any time the video
resolution wasn't a multiple of 4, which meant that some of my DVD rips
where I'd cropped out letterboxing did not work. In my case, the videos
played correctly with mpv but not with MythTV's internal player, but I
never went back to find out if mpv was actually playing them with vdpau
or if it was catching the error and falling back to software.

-- 
Michael Heironimus