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

[David Wagner]

Am 11.09.2012 15:50, schrieb Carl Eugen Hoyos:
> David Wagner<david.wagner123<at>  googlemail.com>  writes:
>
>>>> And I'm searching especially something for decoding.
>>>> Is there an option for only measuring the decoding
>>>> performance?
>>> I always use:
>>> $ time ffmpeg -i input -f null -
>>>
>>> (You are right that this does not only decode, it also
>>> encodes to the "null" format, but I don't think this
>>> will affect the measuring.)
>>>
>> I want to compare encoding with decoding performance
>> requirements and see how the codecs behave.
> If you believe that encoding to the null format affects
> the decoding performance measurement, I honestly wonder
> how you are going to measure encoding performance
> without using a decoder.
>
Ok. I could first transcode my uncompressed files and then I could 
decode and "encode" the target format to null to see the target formats 
behaviour. But probably I would need to free the memory after each test.
> Please put (and leave) an empty line between quoted text
> and your reply, it makes reading mails significantly easier.
>
> Carl Eugen
>
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