[FFmpeg-user] pseudocolor and general filter syntax

Paul B Mahol onemda at gmail.com
Sat Aug 26 16:12:31 EEST 2017

On 8/26/17, Kieran O Leary <kieran.o.leary at gmail.com> wrote:
> On 26 Aug 2017 1:51 pm, "Paul B Mahol" <onemda at gmail.com> wrote:
> On 8/26/17, Kieran O Leary <kieran.o.leary at gmail.com> wrote:
>> I'm trying and failing to get the pseudocolour filter to work. I think my
>> issue is more to do with not knowing how to formulate the filter syntax in
>> general. I basically just copy pasted the example from the filter
>> documentation and I am guessing that I should be populating the
>> amax/ymax/val values with actual numbers?
>>  If so, I'm not sure what to populate val and amax with. Things like ymin
>> and ymax seem like they should be 235 and 255 for 8-bit, but I'm clueless
>> about the others.
> amax/ymax.. are valid as described in documentation, that way you do get
> working filter example for both 8bit and 10bit video.
> You do not change example in any way, why you removed ' chars?
> ' is important because it says to escape ","
> Damn, sorry. I think I initially copy pasted the example as is from the
> documentation and I got the same error. Then I switched the single quotes
> to double quotes to see if that would make a difference. I can't test again
> until tomorrow, but thanks for clarifying.

Ah, put everything also into ""

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