[FFmpeg-user] How to slow down a video

[Ulf Zibis]

Am 05.05.20 um 20:14 schrieb Michael Koch:
> Am 05.05.2020 um 18:27 schrieb Ulf Zibis:
>>
>> Aside I have a question: Where can I find a list of properties, which can be used as parameter in commands. E.g. I can use "PTS" for current picture time stamp and "h" for the heigth.
>
> Either in the documentation, or in the built-in help function (which does sometimes contain more details).
> ffmpeg -h filter=asetrate
>
>> In my case interesting: What is the parameter for the audio rate to use with asetrate=RATE*1.25 ?
>>
>
> I don't think such a variable exists for asetrate filter. Or it's undocumented.

Ah, the usable parameters are dependent from the filter in use, right?

(I thought, that those parameters are common for all.)

-Ulf