[FFmpeg-trac] #657(undetermined:new): xvid -- no multithreaded encoding.
FFmpeg
trac at avcodec.org
Wed Nov 16 11:25:41 CET 2011
#657: xvid -- no multithreaded encoding.
-------------------------------------+-------------------------------------
Reporter: dE_logics | Owner:
Type: defect | Status: new
Priority: normal | Component:
Version: 0.7.7 | undetermined
Keywords: xvid | Resolution:
threads | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
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Changes (by cehoyos):
* cc: de.techno@… (removed)
* keywords: xvid multi thread => xvid threads
Comment:
Please provide a command line and complete, uncut console output for all
(non-build) reports on this bug tracker!
(You do know that FFmpeg contains a native MPEG-4 ASP encoder that is not
known to be worse than xvid?)
What happens if you (slowly) increase the thread count? With the native
encoders, you have to use a higher thread count than the number of cores
you want to use (same as make -j).
For me, -vcodec libxvid -threads 8 uses many threads, but it significantly
hurts performance over -threads 1.
In case I understood correctly that you are writing down your experience
somewhere:
Please note that 0.7 uses a deprecated syntax that gets outdated, you
should definitely use current git head for tutorials and similar.
--
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/657#comment:1>
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