public void setMainSource() {
setProcessing(false);
VideoFormat vidformat = new VideoFormat(VideoFormat.RGB);
Vector devices = CaptureDeviceManager.getDeviceList(vidformat);
CaptureDeviceInfo di = null;
if (devices.size() > 0) di = (CaptureDeviceInfo) devices.elementAt(0);
else {
JOptionPane.showMessageDialog(
parent, "Your camera is not connected", "No webcam found", JOptionPane.WARNING_MESSAGE);
return;
}
try {
ml = di.getLocator();
setMainCamSource(Manager.createDataSource(ml));
} catch (Exception e) {
JOptionPane.showMessageDialog(
parent,
"Exception locating media: " + e.getMessage(),
"Error",
JOptionPane.WARNING_MESSAGE);
return;
}
}
public void player_begin(URL url) {
if (h4JmfPlugin.playMP3 != null) {
logger.severe("playMP3!=null");
h4JmfPlugin.cnsl.append("playMP3!=null");
return;
}
if (url == null) {
h4JmfPlugin.cnsl.append("url==null");
return;
}
MediaLocator mediaLocator = new MediaLocator(url);
try {
// final JPanel jpnl_this=this;
DataSource ds = Manager.createDataSource(mediaLocator);
// cnsl.append("ds="+ds);
h4JmfPlugin.playMP3 = Manager.createPlayer(ds);
/**
* ********************************************************** ControllerListener moved to
* outer class addControllerListener done in h4JmfPlugin **********************************
*/
h4JmfPlugin.player_begin();
} catch (Exception e) {
logger.severe(e.getMessage());
h4JmfPlugin.cnsl.append(e);
return;
}
// h4JmfPlugin.playMP3.realize();
// logger.info("after realize()");
// but possible [JMF thread: com.sun.media.PlaybackEngine@1ac13d7[
// com.sun.media.PlaybackEngine@1ac13d7 ] ( realizeThread)] [error] PlaybackEngine@1ac13d7 ] (
// realizeThread): Unable to handle format: mpeglayer3, 16000.0 Hz, 16-bit, Mono,
// LittleEndian, Signed, 2000.0 frame rate, FrameSize=16384 bits
// running tshvr under hedwig :11:17:08 PM [JMF thread:
// com.sun.media.content.unknown.Handler@8c7be5 ( prefetchThread)] [error] Handler@8c7be5 (
// prefetchThread): Error: Unable to prefetch com.sun.media.PlaybackEngine@6d3b92
} // player_begin
private String createProcessor() {
if (locator == null) return "Locator is null";
DataSource ds;
DataSource clone;
try {
ds = Manager.createDataSource(locator);
} catch (Exception e) {
return "Couldn't create DataSource";
}
// Try to create a processor to handle the input media locator
try {
processor = Manager.createProcessor(ds);
} catch (NoProcessorException npe) {
return "Couldn't create processor";
} catch (IOException ioe) {
return "IOException creating processor";
}
// Wait for it to configure
boolean result = waitForState(processor, Processor.Configured);
if (result == false) return "Couldn't configure processor";
// Get the tracks from the processor
TrackControl[] tracks = processor.getTrackControls();
// Do we have atleast one track?
if (tracks == null || tracks.length < 1) return "Couldn't find tracks in processor";
boolean programmed = false;
// Search through the tracks for a video track
for (int i = 0; i < tracks.length; i++) {
Format format = tracks[i].getFormat();
if (tracks[i].isEnabled() && format instanceof VideoFormat && !programmed) {
// Found a video track. Try to program it to output JPEG/RTP
// Make sure the sizes are multiple of 8's.
Dimension size = ((VideoFormat) format).getSize();
float frameRate = ((VideoFormat) format).getFrameRate();
int w = (size.width % 8 == 0 ? size.width : (int) (size.width / 8) * 8);
int h = (size.height % 8 == 0 ? size.height : (int) (size.height / 8) * 8);
VideoFormat jpegFormat =
new VideoFormat(
VideoFormat.JPEG_RTP,
new Dimension(w, h),
Format.NOT_SPECIFIED,
Format.byteArray,
frameRate);
tracks[i].setFormat(jpegFormat);
System.err.println("Video transmitted as:");
System.err.println(" " + jpegFormat);
// Assume succesful
programmed = true;
} else tracks[i].setEnabled(false);
}
if (!programmed) return "Couldn't find video track";
// Set the output content descriptor to RAW_RTP
ContentDescriptor cd = new ContentDescriptor(ContentDescriptor.RAW_RTP);
processor.setContentDescriptor(cd);
// Realize the processor. This will internally create a flow
// graph and attempt to create an output datasource for JPEG/RTP
// video frames.
result = waitForState(processor, Controller.Realized);
if (result == false) return "Couldn't realize processor";
// Set the JPEG quality to .5.
setJPEGQuality(processor, 0.5f);
// Get the output data source of the processor
dataOutput = processor.getDataOutput();
return null;
}
