Screen capturing / Movie stills

Core Library Questions

minimaxwe..

Screen capturing / Movie stills

in Core Library Questions • 2 years ago

I'm trying to make a thing that captures movie stills every minute with processing but because i'm new to processing i'm not advanced and keep getting the same note.

It says "Cannot convert movie to capture"

Can someone help me out with this?

Here's the code:

import processing.video.*;
Capture myMovie;
int intervalTime = 1*60;
int secondsSinceStart = 0;
String startTime = getTimestamp();
int counter = 0;
boolean doSave = true;
void setup() {
myMovie = new Movie(this, "movie.avi");
size(myMovie.height, myMovie.width);
println(Capture.list());
myMovie = new Capture(this, width, height, 30);
noStroke();
}
void draw() {
if (interval == 0 && doSave == true) {
String saveFileName = startTime+"-"+nf(counter,5);
saveFrame(saveFileName+".png");
doSave = false;
counter++;
}
else if (interval != 0) {
doSave = true;
}
fill(random(0,255),random(0,255),random(0,255));
rect(map(interval, 0,intervalTime, 0,width),0, 5,5);
}
String getTimestamp() {
Calendar now = Calendar.getInstance();
return String.format("%1$ty%1$tm%1$td_%1$tH%1$tM%1$tS", now);
}

Replies(2)

minimaxwe..

Re: Screen capturing / Movie stills

2 years ago

anyone?

amnon.owed

Re: Screen capturing / Movie stills

2 years ago

You're mixing up many different kinds of code.

Perhaps Capture is a non-intuitive name, but it can be used for a webcam, not to capture the screen.

There are two ways to record to a movie:
1. Directly with moviemaker
2. Indirectly by saving a series of stills (and then combining them later in ANOTHER program like quicktime)

It seems in addition to capture, those two ways are also in your sketch. Like I said, you mix up many different things.

Let's just focus on a series of stills first. There are two functions that can do it:
1. save()
2. saveFrame()

An example of the second can be found here: Examples > Topics > File IO > SaveManyImages

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