[FFmpeg-trac] #3651(avcodec:open): UT Video Codec is inefficient compared to libutvideo
FFmpeg
trac at avcodec.org
Fri May 23 15:25:52 CEST 2014
#3651: UT Video Codec is inefficient compared to libutvideo
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Reporter: Zerowalker | Owner:
Type: enhancement | Status: open
Priority: wish | Component: avcodec
Version: git-master | Resolution:
Keywords: utvideo | Blocked By:
Blocking: | Reproduced by developer: 1
Analyzed by developer: 0 |
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Comment (by Zerowalker):
Hmm, this is very weird.
For example, if i playback an UT Video Codec video of a certain caliber,
it will take about 50% CPU usage for me (i got 4 core, so 2 x 100%), while
the original decoder only uses about 1 core.
The same goes for everything i tried, the original decoder won by quite a
large difference, same goes for Lagarith.
For me that should mean it's faster at the same threads, in pure
efficiency right?
As i can't even use 8 threads in an optimal way as i only got 4 cores with
No-HT.
Thanks
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Ticket URL: <https://trac.ffmpeg.org/ticket/3651#comment:6>
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