[FFmpeg-user] v360 expressions

[Paul B Mahol]

On 2/25/20, Michael Koch <astroelectronic at t-online.de> wrote:
> Paul,
>
>> On 2/19/20, Michael Koch <astroelectronic at t-online.de> wrote:
>>> Hi,
>>>
>>> would it be possible to allow expressions for the yaw, pitch and roll
>>> parameters in the v360 filter? I have a project where I need these
>>> angles to be a function of time.
>>>
>> Nope, would make filter 10x times slower.
>
> Would it always slow down the filter, or only if these expressions are
> actually a function of time?
> Some nice effects would be possible when the angles and/or field of view
> could be functions of time.
> A "eval" option (like in "eq" filter) could be added to specify when to
> evaluate the expressions, and the default would be "init" for fast
> processing.
>

Eval is evil. It is not gonna be added.

> Michael
>
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