[theora-dev] Encoding - CPU usage ...

David Kuehling dvdkhlng at gmx.de
Mon Oct 9 01:01:53 PDT 2006

>>>>> "Mat" == Mat  <heavensdoor78 at gmail.com> writes:

>> But maybe there is something which i can do to make better
>> performance?  Example, i have code to convert RGB buffer to YUV
>> buffer, but this is can take lot CPU ticks.

> Can't you grab directly in YUV ?  ( like V4L2_PIX_FMT_YUV420 )

In my experience the least-common denominator for V4L2 capture would be
V4L2_PIX_FMT_YUYV.  Which is twice as many chroma data as YUV420.  But
reducing that shouldn't take much cpu power.


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