video wall of desktop

ikillbombs

in Contributed Library Questions • 1 year ago

Hi, i'm not very experienced with GStreamer(GSvideo) and want to know if there's a simple way to stream your desktop? I want to combine the maybe the syphon library, GSvideo and modul8, to create a videowall that hopefully runs stable :) So i thought using the processing library in OSX should be best. I've seen the video whale project and a example sketch of an videowall in python. I've allready figured out how to get desktop input:

import java.awt.Color;
import java.awt.Font;
import java.awt.Graphics2D;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import javax.imageio.ImageIO;
import java.awt.AWTException;
import java.awt.Robot;
import java.awt.event.KeyEvent;
import java.awt.*;
import java.awt.image.*;
import javax.swing.*;
//Robot objRobot = new Robot ();
//BufferedImage objBufferedImage = objRobot.createScreenCapture(objRectArea);
//
//prinltn(objBufferedImage);
//Define the area we want to save
int counter = 0;
void draw(){
Robot objRobot = null;
try
{
objRobot = new Robot();
} catch(Exception ex)
{
}
Dimension screenDim = Toolkit.getDefaultToolkit().getScreenSize();
BufferedImage objBufferedImage = objRobot.createScreenCapture(new Rectangle(0, 0, (int)screenDim.getWidth(), (int)screenDim.getHeight()));
int areaToExportWidth = 1024;
int areaToExportHeight = 768;
//Create the image
BufferedImage exportImage =objRobot.createScreenCapture(new Rectangle(0, 0, (int)screenDim.getWidth(), (int)screenDim.getHeight()));
//Get graphics - Get the layer we can actually draw on
Graphics2D imageGraphics = (Graphics2D) exportImage.getGraphics();
//Cleanup after ourselves
imageGraphics.dispose();
//Setup to write the BufferedImage to a file
String pathToFile = "/Users/martijnmellema/Documents/Processing/- minor/ typografie 2";
File outputDirectory = new File(pathToFile);
File outputFile = new File(pathToFile+"\\"+counter+"MyImage.png");
//Here we make sure the directory exists.
/*
* Returns TRUE if:
* The directory is MISSING
* and/or the directory IS NOT a directory
*/
if(!outputDirectory.exists() || !outputDirectory.isDirectory()){
outputDirectory.mkdirs(); //Make the directory
} // Else do nothing
//Write the file
try { //Attempt the write
ImageIO.write(exportImage, "png", outputFile);
} catch (IOException e) { //For some reason it failed so...
e.printStackTrace(); //... why did it fail?
}
counter++;
}

using a pipeline:

import codeanticode.gsvideo.*;
GSPipeline pipeline;
void setup() {
size(640, 480);
pipeline = new GSPipeline(this, "osxvideosrc ! tee name=videoout ! queue ! videorate ! video/x-raw-yuv,width=640,height=480 ! queue ! xvidenc ! queue ! muxout. pulsesrc ! audio/x-raw-int,rate=22000,channels=1,width=16 ! queue ! muxout. avimux name=muxout ! filesink location=video.avi videoout. ! queue ! ffmpegcolorspace");
pipeline.play();
}
void draw() {
if (pipeline.available()) {
pipeline.read();
image(pipeline, 0, 0);
}
}

Here's a link to an example video wall:

http://www.linux-1u.net/X11/Quad/gstreamer.net/video-wall-howto.html

So 'im wondering how to combine this?

I've allready installed GStreamer on the other computer, that has Windows XP.

video wall of desktop

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