#pragma once

#include "effects/video_effect.hpp"

namespace effector {

// Film running through a projector: the grain is new on every frame, the
// picture sways a little in the gate and its brightness flickers, and dust
// and scratches pass over it.
//
// The sway is a sum of slow swings, each a whole number of times in the
// clip, so it loops; grain, flicker and dust are drawn from at.fresh() and
// are different on every frame, as they are on film.
class FilmGateEffect : public VideoEffect {
public:
    std::string name() const override { return "filmgate"; }
    std::string title() const override { return "Film gate"; }
    std::string description() const override {
        return "Film running through a projector: grain new on every frame, as Film grain draws "
               "it, a picture swaying in the gate, flicker, dust and scratches.";
    }
    const std::vector<ParamSpec>& params() const override;

protected:
    Image animate(Image input, const ParamValues& values, const Moment& at) const override;
};

}  // namespace effector