I notice that the performance of playback seems to be suboptimal. 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. The action occurs at about half speed because of stuttering and includes frequent pauses of up to a second. I tried tweaking all the obvious settings in the Playback section of the front end's setup screen, to no avail.
However, when I use VLC to play the same file, it looks almost perfect, with only barely perceptible jerkiness due, presumably, to the fact that my Mac Mini can't quite keep up with playback. I grepped the MythTV source for CONFIG_DARWIN to find the Darwin-specific playback code, but came up empty. Perhaps we *need* some darwin-specific playback code? And if Darwin-specific playback code turns out to help, doesn't it indicate that the playback code MythTV is using for all other platforms today could be a whole lot more efficient? Also: does all MythTV playback go through NuppelVideoPlayer? If this is really something that can be fixed by configuration rather than programming, my apologies in advance, but so far I think it's a developer issue. -- Dave Abrahams Boost Consulting www.boost-consulting.com
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