Muzer <muzerakascooby <at> gmail.com> writes: > muzer <at> muzer-desktop:~/Huge/video/Avatar-BD$ mplayer title00.mkv > -channels 6 -vo vdpau -vc ffh264vdpau -lavdopts > threads=3:skiploopfilter=all:fast Please remove the non-working part of the command line. I don't assume they affect your problems but still... And while you are at it, also remove -channels 6 (minimal command lines for testing, please). > [h264_vdpau @ 0x4096c00]non-existing SPS 1 referenced in buffering period (Assuming you also get those messages with -demuxer lavf) Does the issue improve with -demuxer lavf -really-quiet or -demuxer mkv -really-quiet ? You could test -aid 4 and, most important, does mplayer title00.mkv -vc ffh264 -aid 4 -lavdopts skiploopfilter=all:fast -vo gl work? (If your computer is not fast enough, you can add -speed 0.5 just to find out if your problem is VDPAU-related or not). Do you also get the output (the many lines of "non-existing SPS 1" with ffmpeg -i title00.mkv -f crc -vframes 1000 - ? Carl Eugen