[MPlayer-dev-eng] Re: PATCH [0/12] CoreAVCDecoder support
alannisota at gmail.com
Fri Feb 9 06:32:48 CET 2007
> i wonder if you have any mingw mplayer binaries with the coreavc patchset
> applied? or if you know that it builds on win32 ok?
1st let me appologize for breaking the threads in my past couple of posts. I
had suspended my mail delivery, and so didn't have an easy way to respond.
It built fine for me on mingw, however, my binaries would be useless, as I
wasn't able to get display to work at any resonable frame-rate (even for normal
mplayer) If I use '-vo null' I can benchmark in windows, and it seems to be
about right. I haven't found a way to compare to Native windows though...Using
graphedit w/ Chegepuga gives almost identical performance to mplayer with '-vo
null' Using the Haali 'TimeCodec' utility gives performance 20% better than
mplayer with '-vo null'
> also do you have any current benchmarks for us ? i know i'm asking a lot, but
> providing specific samples where coreavc is faster will also be appreciated.
Here are some benchmarks on Linux using a 2.8GHz P4 w/ HT enabled (adds a few
fps with the dual-cpu patch). I don't have a dual-cpu system to benchmark
against, but others have confirmed that a dual-cpu system just about doubles
performance with this codec. I also have a 1.8 GHz Pentium-M which tested
anywhere from the same to 20% slower on Windows compared to the P4.
Using CoreAVC 1.2.0
mplayer -demuxer lavf -vo null -nosound -benchmark <stream>
Need to add '-demuxer lavf' when using TS streams, as mplayer's demuxer doesn't
supply 'format' during codec initialization.
sample1 h264 1280x720x60fields/sec: 82 117 fields/sec
sample2 mbaff 1440x1080x25frames/sec: 13 17 frames/sec
sample3 avc1 1280x720x30frames/sec: 48 72 frames/sec
sample4 paff 1440x1080x30frames/sec N/A 45 frames/sec
here is an archive containing segments of the above streams. In most cases, it
is just a small section of a larger file which I used for benchmarking.
Last time I did this, I generated a bunch of data by encoding with x264 and
various options, I'm not going to redo that. The results shouldn't have
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