[Kdenlive-devel] Keyframes feature

[Marco Gittler]

i made a patch for frei0r plugins to support keyframes.

inigo video.mpg -filter frei0r.contrast0r  
Contrast="0=0.0;200=1.0;300=0.0"


works like we want (i hope someone can test this, to check this too).
it this is what we want for all frei0r plugins, i'll clean up it and  
commit it to mlt

support for color and position values will come later.

regards marco

Am 28.10.2008 um 19:10 schrieb Jean-Michel Pouré:

> On Tue, 2008-10-28 at 10:53 -0700, Dan Dennedy wrote:
>> I plan to add more interpolation capabilities at the framework level
>> similar to the way mlt_geometry works today. Therefore, I suggest
>> using a single property with a value syntax following:
>> [frame=]N[;[frame=N]]*. When "frame" = -1, then it means the "end."
>> (-2 means second last frame and so on.) You can actually use
>> mlt_geometry for this now as it actually a fairly generic thing that
>> contains and interpolates up to five floats per key frame allowing  
>> all
>> sorts of characters (except '=') as delimiter. (See man strtod for  
>> the
>> rules - whatever endptr points to ought to be the delimiter.)
>
> Keyframes are really needed.
> This is my #1 feature, with non-destructive rendering.
>
> Do you think it would be possible to name keyframes, just as they work
> in Final Cut Pro. Each keyframe can have a name, beginning and end.
>
> On each keyframe, you can add one or several effects.
>
> Kind regards,
> JMP
>
>
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