Video Playback Performance – Processing

I try out different video playback mechanism in the Processing to compare their performance. The digital video is the one I used in the last post herunterladen. It is the trailer of the film Hugo. The details are: 1280 x 692 H.264 AAC, bitrate 2,093.

The computer I am using is iMac 3.06 GHz Intel Core 2 Duo, 4 GB RAM, ATI Radeon HD 4670 256 MB graphic card herunterladen. Processing is the latest 1.5.1 version.

For the video playback classes, I tested the default QuickTime Video library, a FasterMovie class, the GSVideo library, and the JMCVideo library with JavaFX 1.2 SDK k3 cd downloaden gratis.

To render the video, I start with the standard image() function, and proceed to test with various OpenGL texturing methods, including the GLGraphics library herunterladen.

Again, I sample the CPU and Memory usage with the Activity Monitor from the Mac OSX utilities, in an interval of 30 seconds. The results are the average of 5 samples images from icloud on mac.

Performance with 2D image function

CPU (%) Memory (Mb)
QuickTime 175 221
FasterMovie 137 275
GSVideo 151 118
JMCVideo 147 87

The OpenGL and QuickTime video libraries have problem working together musiknoten online kostenlos downloaden. The program stops at the size() statement. I have to either put the first video related command before the size() or a dummy line

println(Capture.list());
size(1280, 692, OPENGL);

The second batch of tests use the standard OpenGL vertex and texture functions herunterladen.

Performance with OpenGL texture and vertex functions

CPU (%) Memory (Mb)
QuickTime 158 430
FasterMovie 143 610
GSVideo 147 315
JMCVideo 142 397

The third batch of tests involve custom arrangement in OpenGL amazon music song purchased as. Both GSVideo and JMCVideo come with their own functions to write directly to OpenGL texture. For the FasterMovie test, I combine it with the pixel buffer object I have shown in my previous post dropbox files download handy.
 
Performance with custom OpenGL texture method

  CPU (%) Memory (Mb)
FasterMovie+PBO 69 275
GSVideo+GLGraphics 58 120
JMCVideo+OpenGL 57 91

 
Sample code for GSVideo and GLGraphics (from codeanticode)

import processing.opengl.*;
import codeanticode.glgraphics.*;
import codeanticode.gsvideo.*;
 
GSMovie mov;
GLTexture tex;
 
void setup() 
{
  size(1280, 692, GLConstants.GLGRAPHICS);
  background(0);   
  mov = new GSMovie(this, "Hugo.mp4");
  tex = new GLTexture(this);
  mov.setPixelDest(tex);  
  mov.loop();
}
 
void draw() 
{
  if (tex.putPixelsIntoTexture()) 
  {
    image(tex, 0, 0);
  }
}
 
void movieEvent(GSMovie _m) {
  _m.read();
}

 
Sample code for JMCVideo (from Angus Forbes)

import jmcvideo.*;
import processing.opengl.*;
import javax.media.opengl.*; 
 
JMCMovieGL mov;
PGraphicsOpenGL pgl;
 
void setup() 
{
  size(1280, 692, OPENGL);
  background(0);
  mov = new JMCMovieGL(this, "Hugo.mp4", ARGB);
  mov.loop();
 
  pgl = (PGraphicsOpenGL) g;
  GL gl = pgl.beginGL();  
  gl.glViewport(0, 0, width, height);
  pgl.endGL();
}
 
void draw() 
{
  GL gl = pgl.beginGL();  
  mov.image(gl, 0, 0, width, height);
  pgl.endGL();
}