[mythtv-users] HD-PVR Framerate

[Greg Thompson]

Sorry for top post. Inbox won't let me bottom post. Anyway, the x264
decoder on the PI3 can easily do boy ray rips at over 30Mbs so I doubt it's
a hardware issue. Have you tried Kodi for live TV and recorded files on the
API yet ? That would at least rule out your hardware if it works ok.
On Wed, Nov 30, 2016 at 7:43 PM mythtv <mythtv at mdabbs.org> wrote:

> Most videos play back fine on the Pi3 but scenes with a lot of panning
> (hockey games) will have a pretty regular stutter in the playback.
> Peter Bennett was looking into it and noticed some dropped frames that
> could be related to the stutter.  I was thinking that if I could record
> at 30fps, the Pi3 would be able to handle that easily.  I guess I could
> just transcode everything, but that eliminates watching Live TV, which
> we still do a lot of.  I was hoping to replace my Ions with Pi3s but I
> guess I'm still a little ways away from that.  And I *really* don't want
> to use Kodi.
>
>
> On 11/30/2016 07:00 AM, Greg Thompson wrote:
> >> On Nov 30, 2016, at 7:44 AM, mythtv <mythtv at mdabbs.org> wrote:
> >>
> >> Does anyone know how to set the HD-PVR to record at 30fps instead of
> >> 60?  In trying to get the Pi3 to work, it was discovered that all of my
> >> recordings are 720p at 59.94 fps instead 29.97.  Below is the output of
> >> v4l2-ctl. Looking at the output below, it would seem that it would be
> >> recording in 480i but full frame of 480 instead of half that.
> >>
> >> I'm on an older kernel because newer kernels don't seem to be stable
> >> enough (The HD-PVR just stops recording after a few minutes).  I'm
> >> feeding it video from a u-verse STB that is locked at 720p.  Does the
> >> HD-PVR get it's framerate from the component video?  I'm considering
> >> setting the STB to 1080i but I hate to have to deal with deinterlacing
> >> it during playback.  I've never had good results with doing that so I'd
> >> rather just record it in Progressive mode.
> >>
> >>
> > 720P at 60fps is progressive mode.. AFAIK thats a standard for the HD
> box and can’t be changed their.. Can I ask why? I have no problems playing
> 720p 60fps on my Pi3.
> >
> > As to the Kernel issue, I have no issues with the latest kernel either.
> My Guess is a faulty Power Supply is causing your recordings to stop. This
> is a well known issue with the HD-PVR and failing power Supplies.
> >
> > -Greg
> >
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