java 视频随机漫步#processing #randomwalk #video #random

Posted 2021-05-08

/*
First esperiment in random walk
applied to video

THIS IS A PROCESSING SKETCH
Change file suffix from .java to .pde
before running
*/

import processing.video.*;
Movie myMovie;

static float frameDuration = 0.1;
float maxJump = 2.0;
float jumpBias = .7;

void setup() {
  size(320, 240);
  myMovie = new Movie(this, "test.mp4");
  myMovie.play();
  image(myMovie, 0, 0);
}

void draw() {
  float jump = ((randomGaussian() * maxJump) + jumpBias) * frameDuration;
  float newtime = myMovie.time() + jump;
  if(newtime < 0.0)
    newtime = 1;
  myMovie.jump(newtime);
}

void movieEvent(Movie m) {
  m.read();
  image(m, 0, 0);
}