<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_REOPENED " title="REOPENED --- - Vdpau driver lag" href="https://bugs.freedesktop.org/show_bug.cgi?id=55913#c5">Comment # 5</a> on <a class="bz_bug_link bz_status_REOPENED " title="REOPENED --- - Vdpau driver lag" href="https://bugs.freedesktop.org/show_bug.cgi?id=55913">bug 55913</a> from <a class="email" href="mailto:lists@andyfurniss.entadsl.com" title="Andy Furniss <lists@andyfurniss.entadsl.com>"> Andy Furniss</a> <pre>(In reply to <a href="show_bug.cgi?id=55913#c4">comment #4</a>) > mplayer2 uses advanced VDPAU functionality that mplayer does not use - the > presentation queue. This works fine with Nvidia's implementation. Likely the > bug is in Mesa's implementation of the presentation queue. Maybe, but maybe it's something as simple as the fact (or way) that mesa vdpau is vsynced. Some further testing results - Use VDPAU_TRACE=1 and grep/awk/bash to get the diffs from the timestamps mplayer2 uses on vdp_presentation_queue_display. Playing 25 fps on a 60Hz screen looks OK ish for a while - 50030334 33349000 50022000 33350000 50022000 33348000 50023000 33349000 50022000 33349000 33356334 33333332 50029334 but then when it starts lagging mplayer2 is asking for longer intervals - 100052334 16682334 100046000 16673000 100046000 16674000 83333330 66728336 83371000 66697000 83372000 66697000 83370000 66699000 83370000 First thought it's trying to framedrop - maybe my GPU is too slow (it's powerful but set to low). Turn it up and no lag - me thinks that's it then, but then mplayer works so another test. GPU on low again but screen @120Hz also = no lag, so it's not just perf. If you know mplayer2 code well perhaps that will tell yoou something. Another separate observation SD or HD just -vo seems to work but the %cpu shown for vo rises. It seems it's rate of rise decreased as it gets higher so I don't know if it will ever get to 100 and start lagging.</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the assignee for the bug.</li> </ul> </body> </html>