> I notice that the performance of playback seems to be suboptimal. Indeed, but I don't think it far behind i386? * Your average PIII 500 can play back MPEG2 SDTV at the full frame rate if you have Xv support (i.e. hardware colour space translation) * My G4 400 can _almost_ do the same thing.
The G4 should be capable of better, but I think that the MPEG decoding code in avlib is primitive. There is PPC code there, but I doubt it is as well optimised as the Pentium code. Jeremiah did lots of work optimising QuickTime calls and doing assembler for the OSD translation. I miss him :-( Last April, Benjamin Hulley told me about a hack which opens an interface to the hardware DVD decoding: http://www.defyne.org/dvb/accellent.html To my shame, I haven't had the time to explore, though. ... > For example, I captured some HDTV video over firewire using MythTV. > When I try to play it back using the frontend, it is totally > unwatchable. I have that problem on PCs too. None of my machines (EPIA M10000, Gigabyte w KM400/AMD XP2400, various Pentium and Celeron at work) are up to the task. ... > However, when I use VLC to play the same file, it looks almost > perfect, with only barely perceptible jerkiness Interesting. I will have to experiment myself, now. -- Nigel Pearson, [EMAIL PROTECTED]|"Look at this! Telstra Dev. Lab, Sydney, Australia | Do you think I put this in Office:9814 4803 Fax: 9814 4897 | to get better reception?" Mobile: 0408 664435 Home: 9792 6998 | Batty - Fern Gully _______________________________________________ mythtv-dev mailing list mythtv-dev@mythtv.org http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-dev