Rockbox Technical Forums

Support and General Use => Plugins/Viewers => Topic started by: podpodpod on April 14, 2007, 07:14:08 AM

Title: Mpeg Playback
Post by: podpodpod on April 14, 2007, 07:14:08 AM

Hi

I have tested a few movies on the mpegplayer plugin
They all lag and i can see that the prformance is appaling...does anyone know why this is

Is a possiblilty the fact that I am using a certain build?

Will this be fixed in future?

Title: Re: Mpeg Playback
Post by: bluebrother on April 14, 2007, 07:16:51 AM

Quote from: http://www.rockbox.org/twiki/bin/view/Main/PluginMpegplayer

Performance - performance seems to be noticably worse with the current mpegplayer compared to versions prior to rebuffering and av sync.

Title: Re: Mpeg Playback
Post by: gnu on April 14, 2007, 12:21:19 PM

Have you converted your videos properly? With a *realistic* bitrate?

Title: Re: Mpeg Playback
Post by: Llorean on April 14, 2007, 03:34:28 PM

And what player are you on? Performance estimates are clearly posted on the wiki page.

Title: Re: Mpeg Playback
Post by: podpodpod on April 14, 2007, 05:05:46 PM

I'm on an iPod video 60gig
i have converted my videos to the correct size
bitrate tolerance is on auto-whatever that means

Not sure what im doing wrong...

Title: Re: Mpeg Playback
Post by: Llorean on April 14, 2007, 05:28:28 PM

On the iPod Video you should only expect 10fps for a full screen video. Did you set it to encode at 10fps?

Title: Re: Mpeg Playback
Post by: podpodpod on April 15, 2007, 08:09:04 AM

If i encode at 10fps will the video still be seamless, as in non stuttering...

Thanks

Title: Re: Mpeg Playback
Post by: Llorean on April 15, 2007, 08:10:54 AM

If you encode the video at 10fps, it'll be 10fps. It's not particularly smooth, no. Seriously, Video is not great on the 5G iPod. 10fps is poor, yes, but we tell you CLEARLY that it will be at about 10fps on the wiki page.

The 5G iPod has a very slow processor for the screen size it has to update.