On Tue, 2009-05-05 at 20:50 -0500, Mike Isely wrote: > On Tue, 5 May 2009, Roger wrote: > > I intend to use the HVR-1950 on MythTV to record. But wondering if > > playing the live ATSC high definition using mplayer with it's hacks to > > resize the video before playing it will allow one to view live tv on a > > slow CPU. > > That I seriously doubt would work. The mpeg decode step generally has > to happen in the processor and that limits your bottom end which is > probably going to be at least P4-class 2.4GHz or better before it is > going to work for HD video.
Ah. The missing piece of data. Even though I have a P3 750*2 CPU's, should probably look at resizing after recording. :-/ And, makes sense now as to why the HVR-1950 doesn't have a chip feature for resizing video. (As you said, the HVR-1950 is pretty much a PVRUSB2 unit with an ATSC tuner.) Another idea, I should grab some high definition test video from the Internet and play with mplayer here to see what I can do! 720p can play slowly at 88-95% CPU usage with mplayer without XvMC. (Obviously, 1080 will likely be a no-go unless I resize.) However, enabling XvMC significantly reduced CPU usage down to 20-30% while playing 1080!!! (w/ P3 2x750 & 1G RAM) Since I only watch local TV, most programs still seem to be broadcast in standard definition. So, for my boxes with a usable NVidia card w/ XvMC feature, I should be alright as this feature is usable with MythTV, except for my laptop. (The system requirements completely omit the XvMC feature of Nvidia cards.) -- Roger http://rogerx.freeshell.org _______________________________________________ pvrusb2 mailing list [email protected] http://www.isely.net/cgi-bin/mailman/listinfo/pvrusb2
