OK, that one DID manage to fill up one of the cores -- towards the end of the bird scene -- but it remained watchable.
Originally Posted by tuxdriver
Mplayer skipped some frames, but it was not noticable during playback.
And I still had three cores idle. As I said, the Phenom II are awesome
Nice videos, BTW. It really shows the benefits of HD video. HD + nature documentaries = teh win
Last edited by pingufunkybeat; 10-09-2009 at 07:16 PM.
Basically everytime it hits 100% mplayer loses a/v sync. With a docu where you don't see the speaker it is not that obvious, but when you watch a full movie then after a certain time it is more or less unwatchabe. This is mainly with pure m2ts as the bitrates are really high. The same problem is even with vdpau when the stream has a few errors then it loses sync. Common win players do not have got this problem. I think mplayer should be optimized to resync better.
Damn, the bird scene stuttered :P
AMD, we'll welcome some GPU accel anytime.
http://www.andyqos.ukfsn.org/BBCHD-P-40.ts (20Mbps 1080p25 H.264)
posted by legume is another good CPU / video acceleration benchmark.
Set the playback to loop mode in your video player and let the video loop for a while (a few times).
If your CPU isn't powerful enough, you'll experience these issues:
- The video will stutter badly in some parts (i.e. the cart scene)
- During the second (and every subsequent) loop, the last part of the video (the little boy) will be skipped completely.
- Audio desync issues
Last edited by tuxdriver; 10-10-2009 at 11:53 AM.
Both videos (BBC & Planet Earth) definitely showed problems on my system (RV530 and old CoreDuo 1.83Ghz, Macbook Pro).
I've resorted to a multithreaded mplayer for my media center until GPU acceleration happens. You just have to check out the current mplayer and current ffmpeg-mt, then replace the libavcodec, libavformat and libavutil in the mplayer directory with the ones from ffmpeg. Configure, compile and install. When you run mplayer, just do mplayer -vfm ffmpeg -lavdopts threads=2 (or however many cores you have) and you're off and running. Your Core Duo should be more than fast enough... my 2.17GHz Core 2 Duo has a fair bit of overhead left when running 1080i mts files.
Thanks for the testvideo's guys. Helped a lot for tweaking my setup.
Another option to ffmpeg-mt is to use coreavc. Yes I know, proprietary, closed source, non-free, windoze binaries... but it actually *does work*, and for that matter, VERY WELL. coreavc is multi-threaded, and is (in my experience at least) quite a bit lighter on the CPU than ffmpeg-mt. I also notice that audio *always* stays in sync, even if it tops out the CPU.
Ubuntu forum, but the instructions are universally applicable -- I did it with F12-Alpha. For that matter, I took the rpmfuzion mplayer.src.rpm, added in the coreavc stuff, and made a binary rpm out of it so that it doesn't pollute my system.