[FFmpeg-user] Problem with changing options at runtime with a command

[Michael Koch]

Am 03.07.2021 um 15:06 schrieb Michael Koch:
> Hi Gyan,
>
>>
>> As the docs state, the acceptable commands are w, h, x, ,y
>>
>> so the syntax is
>>
>>     c crop -1 w 100
>>
>
> Is this documented somewhere? I mean typing "c" in the console while 
> FFmpeg is running.
> I know that you mentioned it on stackoverflow some time ago, but I 
> never found it in the FFmpeg docs.
>
> https://stackoverflow.com/questions/56058909/ffmpeg-drawtext-and-live-coordinates-with-sendcmd-zmq 
>
>
> I think it should be added to chapter 34 in FFmpeg-all.html, "Changing 
> options at runtime with a command".

P.S. In the same chapter could also be mentioned that two other methods 
exist: sendcmd and zmq.

Michael