On Sun, May 16, 2010 at 5:26 AM, Muzer <muzerakascooby at gmail.com> wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > Hi all, > > I'm trying to watch Avatar (a rip from the BD that I made myself with > makemkv) with mplayer. I have added a load of options to try to improve > the playback quality, as it was extremely jerky and stuttering before - > now it's watchable, but still not perfect. > > The command-line I use is: > > mplayer title00.mkv -channels 6 -vo vdpau -vc ffh264vdpau -lavdopts > threads=3:skiploopfilter=all:fast > > > I have disabled compositing in kwin - that makes a difference. > > I have tried using xv instead of vdpau, and the quality is virtually the > same, which raises the question of whether vdpau is actually doing its job. > > The exact nature of the jerkiness is that it runs reasonably smoothly > for about a second, then does a little freeze in the picture and jumps - > all within about half a second. Sound remains smooth. This repeats. This > is unnoticeable during most scenes, but really distracts you from the > large, sweeping panoramic views. > > I am using mplayer from the Ubuntu Lucid repo - I will try the SVN if > you think it might help. > > I am using pure ALSA as my sound output, but with a custom plugin that > downmixes 5.1 surround to 4.0 (for my 4.0 surround system). I am pretty > sure there is no interference from pulseaudio anywhere along the line. > > My CPU is an "Intel(R) Core(TM)2 Duo CPU ? ? E7300 ?@ 2.66GHz" > > My GPU is an "nVidia Corporation G96 [GeForce 9500 GT]" - actually > branded PNY. I am using the proprietary nvidia driver from the Ubuntu > Lucid repo - again, if there is a newer one and you think it might help, > I'll try grabbing that. > > I have tried enabling the cache and framedrop, all making no difference. > > My monitor's resolution is somewhat lower than 1080p, so it has to scale > the video down. However, even if I try to watch it fullsize (with some > of it falling off the edge of the monitor obviously), it still jerks along. > > Playing lower-resolution films (though I have not tried any other h264 > videos) does not exhibit this problem. I have not tried any other HD > videos either. > > Anyone got any clue? Is my computer too poor to play it, or is it a > software issue? If it's a hardware issue, do you think it's the GPU or > the CPU that needs an upgrade? > > > > Thanks a lot, > > Muzer. I am not to sure about the limitations of older vdpau hardware but it seems that you have a feature set A card which states full h264 decoding but maybe they where not expecting such a large file (I have heard the movie is the full 50 gigs) considering most movies I have ripped are only 25-30 gigs, so Avatar may have a way higher bitrate. Here is some info on the feature sets and which cards use which one. http://en.wikipedia.org/wiki/Nvidia_PureVideo
