[FFmpeg-user] Benchmarking with ffmpeg - What are the parameters meaning?

[David Wagner]

Am 11.09.2012 00:50, schrieb Roger Pack:
>>> Definitely averaged..... I often skip a few minutes of streams when
>>> recoding and the value slowly climbs - starting at 0.
>> Can you tell me why this means that it is the average speed and not the real
>> speed at which the frames are processed. I'm not sure if I understand the
>> assumption in your example.
> Imagine you're doing a screencast for 2 hours using ffmpeg.  After 5
> minutes, the fps cuts "in half" because of up-network traffic
> congestion.  The ffmpeg console output wouldn't really let you know
> that you're now operating "at half speed" until much later.  The other
> example is if cpu congestion occurs when you're half way through
> transcoding a file, you might not know about it for quite awhile (or
> if you're receiving from stdin and it blocks for a minute, then
> continues, your fps will be abnormally low).  Those types of
> situations.
> -r

ok, if you have the drop with a delay then I would agree.
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