[mythtv-users] Support for mythrokuplayer

[jedi]

On Thu, Jan 23, 2014 at 11:07:41AM -0800, Yan Seiner wrote:
> 
> On 01/23/2014 11:03 AM, jedi wrote:
> >On Thu, Jan 23, 2014 at 09:51:10AM -0800, Yan Seiner wrote:
> >>On 01/23/2014 09:44 AM, jedi wrote:
> >>>On Wed, Jan 22, 2014 at 03:54:50PM -0800, Yan Seiner wrote:
> >>>>On my very anemic servers (AMD Athlon Dual Core 4600+) it takes
> >>>>about 10x as long to transcode as to play.  I clocked it with a new
> >>>>i3-3240 dual core, and it took about 4x.  I figure it needs
> >>>>something like a i5-3470 quad core to make it reasonable.
> >>>     That doesn't sound right.
> >>>
> >>>     Are you sure that the transcoder is using threading? You should be
> >>>getting much better performance than that and using multiple cpus in
> >>>the process. If your content or your transcoder can't take advantage
> >>>of multiple cores, then a faster CPU probably won't help.
> >>>
> >>>
> >>Yup.  I'm using handbrake and it's running on all available cores.
> >>h264 transcoding just takes time.  On the hyperthreaded Intel it
> >>shows as using 396% CPU :)
> >     I do loads of this kind of stuff. That's why I find your results
> >so intriguing.
> >
> >     I do h264 transcoding very frequently. I even started off a
> >transcode of a BluRay on multiple machines to see how each would
> >perform. Even working with files on an NFS mount didn't slow down
> >my i3.
> >
> >     Something else you might want to try is installing Plex on the
> >Roku. I have played around with that a little bit. It think I have
> >been able to play BDs through it.
> >
> >     Although I prefer to just use ION based myth frontends for the
> >kind of things that a Roku can't handle natively.
> >
> >
> >

    Source and target frame size and bitrate don't even scratch the 
surface here. There are TONS of h264 options. Some of them are quite
computationally intensive while providing little value in terms of 
quality or reduced file size.

    Handbrake could easily be doing something very boneheaded. 

    There's an "advanced configuration" page in Handbreke you want to
be looking at. The named preset you're using might also give some clues
as to what going on. The preset you're jusing could be overkill.

    Although it sounds like that roku conversion script mentioned by the
other guy could be the way to go.

    I spent a lot of time myself in the beginning getting my own h264 options
"just so" in terms of balancing quality versus CPU time. That Roku conversion
script seems to be something similar but just tailored to the Roku.


> Bit rate                                 : 12.4 Mbps
> Maximum bit rate                         : 12.8 Mbps
> Width                                    : 1 920 pixels
> Height                                   : 1 080 pixels
> Display aspect ratio                     : 16:9
> Frame rate                               : 29.970 fps
> 
> I would guess that if I reduced that size to DVD quality it would go
> quicker... :)
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