Opened 15 years ago
Last modified 13 years ago
#1460 new defect
vdpau acceleration not used by default with mkv files
| Reported by: | Owned by: | reimar | |
|---|---|---|---|
| Priority: | normal | Component: | vd |
| Version: | HEAD | Severity: | normal |
| Keywords: | Cc: | mennucc1@… | |
| Blocked By: | Blocking: | ||
| Reproduced by developer: | no | Analyzed by developer: | no |
Description
Using Ubuntu 9.04 AMD64, compiling MPlayer from SVN (I show "Last Changed Rev: 29256"), an x264 mkv file is not played with vdpau codec acceleration by default.
Using the command line option "-vc ffh264vdpau", I was able to force vdpau on, and having done this the video looked fine. I wasn't able to see any difference from software decode, the only way I was able to be sure it had done anything at all was that it printed "Selected video codec: [ffh264vdpau] vfm: ffmpeg (FFmpeg H.264 (VDPAU))", and the CPU usage went from ~40% to ~1%.
Change History (2)
comment:1 by , 14 years ago
| Cc: | added |
|---|
comment:2 by , 13 years ago
| Owner: | changed from to |
|---|
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I can confirm. Here are some lines of output from
# mplayer -vo vdpau -identify -quiet sample.mkv
ID_DEMUXER=mkv
ID_VIDEO_FORMAT=avc1
ID_VIDEO_BITRATE=0
ID_VIDEO_WIDTH=1280
ID_VIDEO_HEIGHT=574
ID_VIDEO_FPS=23.976
ID_VIDEO_ASPECT=2.2300
ID_AUDIO_FORMAT=8192
ID_AUDIO_BITRATE=0
ID_AUDIO_RATE=48000
ID_AUDIO_NCH=6
ID_LENGTH=8931.60
ID_SEEKABLE=1
ID_CHAPTERS=0
ID_VIDEO_CODEC=ffh264
ID_AUDIO_BITRATE=448000
ID_AUDIO_RATE=48000
ID_AUDIO_NCH=2
ID_AUDIO_CODEC=ffac3
ID_VIDEO_ASPECT=2.2300
and this uses ~50% CPU (and that is even more than '-vo xv') ; whereas
# mplayer -vo vdpau -identify -quiet -vc ffh264vdpau sample.mkv
uses ~10% CPU .
a.