euglena/lib/video/examples/Movie/Reverse/Reverse.pde
2016-07-10 00:36:44 -07:00

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/**
* Reverse playback example.
*
* The Movie.speed() method allows to change the playback speed.
* Use negative values for backwards playback. Note that not all
* video formats support backwards playback. This depends on the
* underlying gstreamer plugins used by gsvideo. For example, the
* theora codec does support backward playback, but not so the H264
* codec, at least in its current version.
*
*/
import processing.video.*;
Movie mov;
boolean speedSet = false;
boolean once = true;
void setup() {
size(640, 360);
background(0);
mov = new Movie(this, "transit.mkv");
mov.play();
}
void movieEvent(Movie m) {
m.read();
if (speedSet == true) {
speedSet = false;
}
}
void draw() {
if (speedSet == false && once == true) {
// Setting the speed should be done only once,
// this is the reason for the if statement.
speedSet = true;
once = false;
mov.jump(mov.duration());
// -1 means backward playback at normal speed.
mov.speed(-1.0);
// Setting to play again, since the movie stop
// playback once it reached the end.
mov.play();
}
image(mov, 0, 0, width, height);
}