[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
             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            |

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


Ticket URL: <https://trac.ffmpeg.org/ticket/3651#comment:6>
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