[mythtv-users] Playback Profiles? WTF?!

[Raphael]

Glen Hawksworth wrote:
> I have tried every possible combination of the ffmpeg settings and I get
> stuttering with all of them; best result is one stutter every 3-4
> seconds.
> I did some searching about DMA and I believe my box is using UDMA. It is
> running off a CF card (/dev/sda) at ATA133.
> I am baffled as to how HD is watchable with a 2GHz in MythTV 0.21
> I am going to spend some of easter trying the 256MB nVidia to see if it
> makes a difference and then try reloading the frontend from scratch.
> 

Ok, so to check DMA you do as root:

hdparm /dev/hda

Replace hda with whatever drive your recordings are stored on. You won't 
really need to check for DMA on the CF card, since your recordings won't 
be on that one. There was another post earlier about resolution size. My 
TV has a resolution of 1366x768. I'm using a 1280x768 modeline in X. I 
also don't have a 1080p TV, so don't know whether processor usage would 
go up at that resolution.

But yes, ffmpeg does put most of the work on the processor.
My graphics card has 256MB of RAM I believe; it's an Nvidia FX5200, AGP. 
However, I don't think that you're going to need more RAM for HD 
decoding and displaying at an HD resolution.

So what you're saying is you get stutter free HD with XVMC, and 
stuttering every 3-4 seconds with ffmpeg? Is your sql database on a 
separate drive from your recording? Some people have mentioned getting 
stuttering due to heavy sql activity.

Hope you're making some progress.
Raphael