Re: Video Haltiness Multiple Times/Second
Just FYI, I spoke to the MythTV developers re: embedded ffmpeg version:
In the development MythTV version, the embedded ffmpeg version is from ~ last November, and hence probably doesn't include some of the fixes for VDPAU integration. There's a plan to update it in the near future. However, the developer doing this was waiting for the new hwaccel API to be fully merged and stable. Unfortunately, the ffmpeg developers are dragging out the review process for this.
For the 0.21 branch, the embedded ffmpeg is maybe a couple years old. Couple this with using patches for VDPAU integration that are probably also from the same time period (i.e. ~ Nov last year) and problems are to be expected.