Processing 1.0 - Processing Discourse - gstreamer video library: error

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Index › Programming Questions & Help › Video Capture, Movie Playback, Vision Libraries › gstreamer video library: error

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gstreamer video library: error (Read 564 times)

snorpey

gstreamer video library: error
May 2^nd, 2008, 7:36pm

hi.
I just tried the gstreamer library for processing.

Even though i can use my webcam with other applications, it does not work with processing (ubuntu 8.04). Whenn running the GettingStartedCapture example, i get an error:

the example:
Code:


/**
 * Getting Started with Capture.
 * 
 * GSVideo version by Andres Colubri. 
 * 
 * Reading and displaying an image from an attached Capture device. 
 */ 
import codeanticode.gsvideo.*;

GSCapture cam;


void setup() {
  size(640, 480);

  // With GSVideo there is not method to select the capture device, yet.
  cam = new GSCapture(this, 320, 240);
}


void draw() {
  if (cam.available() == true) {
    cam.read();
    image(cam, 160, 100);
    // The following does the same, and is faster when just drawing the image
    // without any additional resizing, transformations, or tint.
    //set(160, 100, cam);
  }
}

the error:
Code:



Locking assertion failure.  Backtrace:
#0 /usr/lib/libxcb-xlib.so.0 [0xb75b8767]
#1 /usr/lib/libxcb-xlib.so.0(xcb_xlib_unlock+0x31) [0xb75b88b1]
#2 /usr/lib/libX11.so.6(_XReply+0xfd) [0xa9a7c1bd]
#3 /home/georg/Software/Processing/java/lib/i386/xawt/libmawt.so [0xa9b6fd7e]
#4 /home/georg/Software/Processing/java/lib/i386/xawt/libmawt.so [0xa9b59d47]
#5 /home/georg/Software/Processing/java/lib/i386/xawt/libmawt.so [0xa9b59ec3]
#6 /home/georg/Software/Processing/java/lib/i386/xawt/libmawt.so(Java_sun_awt_X11GraphicsEnvironment_initDisplay+0x26) [0xa9b5a106]
#7 [0xb29c7bfa]
#8 [0xb29c1b3b]
#9 [0xb29c1b3b]
#10 [0xb29bf219]
#11 /home/georg/Software/Processing/java/lib/i386/client/libjvm.so [0xb776b19c]
#12 /home/georg/Software/Processing/java/lib/i386/client/libjvm.so [0xb787fb38]
#13 /home/georg/Software/Processing/java/lib/i386/client/libjvm.so [0xb776afcf]
#14 /home/georg/Software/Processing/java/lib/i386/client/libjvm.so(JVM_DoPrivileged+0x32d) [0xb77c8a7d]
#15 /home/georg/Software/Processing/java/lib/i386/libjava.so(Java_java_security_AccessController_doPrivileged__Ljava_security_PrivilegedAction_2+0x3d) [0xb756530d]
#16 [0xb29c74ab]
#17 [0xb29c1a64]
#18 [0xb29bf219]
#19 /home/georg/Software/Processing/java/lib/i386/client/libjvm.so [0xb776b19c]
Locking assertion failure.  Backtrace:
#0 /usr/lib/libxcb-xlib.so.0 [0xb75b8767]
#1 /usr/lib/libxcb-xlib.so.0(xcb_xlib_lock+0x2e) [0xb75b881e]
#2 /usr/lib/libX11.so.6 [0xa9a7b518]
#3 /usr/lib/libX11.so.6(XGetVisualInfo+0x26) [0xa9a720a6]
#4 /home/georg/Software/Processing/java/lib/i386/xawt/libmawt.so [0xa9b59089]
#5 /home/georg/Software/Processing/java/lib/i386/xawt/libmawt.so [0xa9b592d3]
#6 /home/georg/Software/Processing/java/lib/i386/xawt/libmawt.so [0xa9b59f71]
#7 /home/georg/Software/Processing/java/lib/i386/xawt/libmawt.so(Java_sun_awt_X11GraphicsEnvironment_initDisplay+0x26) [0xa9b5a106]
#8 [0xb29c7bfa]
#9 [0xb29c1b3b]
#10 [0xb29c1b3b]
#11 [0xb29bf219]
#12 /home/georg/Software/Processing/java/lib/i386/client/libjvm.so [0xb776b19c]
#13 /home/georg/Software/Processing/java/lib/i386/client/libjvm.so [0xb787fb38]
#14 /home/georg/Software/Processing/java/lib/i386/client/libjvm.so [0xb776afcf]
#15 /home/georg/Software/Processing/java/lib/i386/client/libjvm.so(JVM_DoPrivileged+0x32d) [0xb77c8a7d]
#16 /home/georg/Software/Processing/java/lib/i386/libjava.so(Java_java_security_AccessController_doPrivileged__Ljava_security_PrivilegedAction_2+0x3d) [0xb756530d]
#17 [0xb29c74ab]
#18 [0xb29c1a64]
#19 [0xb29bf219]

what went wrong?

stuff i do

ac Full Member Offline Posts: 237	Re: gstreamer video library: error Reply #1 - May 4^th, 2008, 10:18pm Were you able to run the movie playback examples? Do you get the same error? As for the capture, some people found that the default gstreamer plugin for camera input, v4l2src, doesn't work with some cameras, but v4lsrc does work. Try the following: cam = new GSCapture(this, 320, 240, “v4lsrc”);

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