[FFmpeg-user] problem with trying maths in a filter

Julian Gardner joolzg at gardnersweden.com
Thu Aug 22 10:05:32 EEST 2019


Thanks for that, works now.

Maybe i should look at the eval code and fix it!!!!

---
BR

Joolz


On 2019-08-22 00:24, James Darnley wrote:
> On 2019-08-21 23:44, Julian Gardner wrote:
>> tried a few versions on varying machines but cant get this work, so 
>> can
>> someone help me as to why these filters dont work
>> 
>> this
>> overlay=x=32+(mod(t/30,1)*448):y=32+(mod(t/60,1)*206)
>> 
>> or this
>> overlay=x=32+mul(mod(t/30,1),448):y=32+mul(mod(t/60,1),206)
>> 
>> I get this error
>> 
>> [AVFilterGraph @ 0x2c3a880] No such filter: '1)*448):y'
>> 
> 
> Unfortunately you need to escape the commas , with a backslash \ to 
> make
> \, because commas are used to separate filters.
> 
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