[FFmpeg-user] Strange CPU usage in MPEG2 encoding

Roberto Ragusa mail at robertoragusa.it
Mon Sep 1 17:48:21 CEST 2014

On 09/01/2014 12:39 PM, SF wrote:

> Is someone here have ideas about what is going on ? Why the bufsize + maxrate option can create so much CPU load, 
> even with still pictures ? And why this does not occur with the same FFMPEG command-line ?

Did you try to do some profiling and identify the code parts which
are taking so much additional time?

Something like:

valgrind --tool=callgrind --callgrind-out-file=/tmp/prof yourprogram

kcachegrind /tmp/prof

or whatever tool you prefer.

   Roberto Ragusa    mail at robertoragusa.it

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