[mythtv-users] MythTV Companion for iPad Update

[Brian Frost]

When should we start looking for this on the App Store?



On Dec 2, 2011, at 2:26 PM, Robert McNamara wrote:

> 
> 
> On Fri, Dec 2, 2011 at 12:12 PM, Matt Emmott <memmott at gmail.com> wrote:
> 
> 
> 
> Very cool. I notice it takes some time to "spin up" the stream. Is that something that can be sped up as the app matures? What's the bottleneck? I assume the Mythtv box is what's doing the transcoding before sending the stream to the iPad; is it just a matter of CPU power on that end? 
> 
> 
> 
> You need to have at least one segment of video completed before you can start playback.  In fact, you really want more than one just in case.  My app currently waits for the transcoder to be on segment 4 or greater, so that there's at least 30 seconds worth of completed content the gauge the average transcode speed and see whether the backend is going to be able to keep up with a real live stream.
> 
> Yes, it's basically CPU constrained, and dependent on how conservative/complete the app decides to be in making sure the selected transcode profile is sustainable over time.  I can set it to start playback after a single segment is completed, but that doesn't leave a lot of room for error-- if the first 10 seconds of the movie are all black screen, the transcode will occur at a blistering pace-- but what happens when you're following behind that at real speed and the transcoder gets to, say, the shootout scene from the Matrix?  The app needs to be able to handle that kind of thing.
> 
> The other option is to allow people to pre-transcode, and any stream which is already transcoded would start immediately.  But the reality is, if you're transcoding on the fly, you need to think carefully about handling the above situations.  Having to pre-transcode would make it pretty pedestrian.
> 
> Robert
> _______________________________________________
> mythtv-users mailing list
> mythtv-users at mythtv.org
> http://www.mythtv.org/mailman/listinfo/mythtv-users

-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://www.mythtv.org/pipermail/mythtv-users/attachments/20111215/ef9b25f3/attachment-0001.html