[FFmpeg-trac] #3651(avcodec:reopened): UT Video Codec is inefficient compared to libutvideo

FFmpeg trac at avcodec.org
Sat Jan 7 19:08:49 EET 2017


#3651: UT Video Codec is inefficient compared to libutvideo
-------------------------------------+------------------------------------
             Reporter:  Zerowalker   |                    Owner:
                 Type:  enhancement  |                   Status:  reopened
             Priority:  wish         |                Component:  avcodec
              Version:  git-master   |               Resolution:
             Keywords:  utvideo      |               Blocked By:
             Blocking:               |  Reproduced by developer:  1
Analyzed by developer:  0            |
-------------------------------------+------------------------------------

Comment (by richardpl):

 Replying to [comment:29 Cigaes]:
 > I read in the report:
 > {{{
 >   Stream #0:0 -> #0:0 (utvideo (native) -> wrapped_avframe (native))
 > bench: utime=69.007s
 > bench: maxrss=80832kB
 >
 > real    0m9.651s
 > user    1m9.011s
 > sys     0m0.670s
 > }}}
 > and
 > {{{
 >   Stream #0:0 -> #0:0 (libutvideo -> rawvideo)
 > bench: utime=40.979s
 > bench: maxrss=22828kB
 >
 > real    0m11.342s
 > user    0m40.982s
 > sys     0m2.014s
 > }}}
 >
 > I find that rather convincing: the older ffmpeg with libutvideo decoding
 is 68% faster than the current one with native decoding. Is there
 something wrong?

 One gives more FPS than other.

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Ticket URL: <https://trac.ffmpeg.org/ticket/3651#comment:31>
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