Unable to dectek webcam drivers using JMF
Hi,
I am unable to detect the webcam drivers(civil:\\?\usb#vid_04f2&pid_b119&mi_00#6&18e8659b&0&0000#{65e8773d-8f56-11d0-a3b9-00a0c9223196}\global) using JMStudio.
FYI : jmf.properties is already available in the classpath
whereas using FMJ(fmjstudio) am able to detect the webcam drivers. i realized upon having civil.dll in the fmj library path able to detect the webcam drivers sucessfully.
Please suggest how we can take forward using JMF
Thanks
vijay
user13614010 wrote:
I am unable to detect the webcam drivers(civil:\\?\usb#vid_04f2&pid_b119&mi_00#6&18e8659b&0&0000#{65e8773d-8f56-11d0-a3b9-00a0c9223196}\global) using JMStudio.civil://? Not sure JMF supports that...
whereas using FMJ(fmjstudio) am able to detect the webcam drivers. i realized upon having civil.dll in the fmj library path able to detect the webcam drivers sucessfully.FMJ does still JMF doesn't. JMF only works with the VFW api to detect web cams in Windows...
Similar Messages
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How do you access a WDM webcam( that hasn't got a VFW driver ) using JMF ?
I'm trying to write capture sofware to access whatever webcam I connect to a usb port . Unfortunately, jmf registry does not detect the wdm devices. When running the code the vfwwdm.dll wrapper does do the convert, but you have an annoying window pop up to select the appropriate device. Has anyone found a way to access the wdm driver using the windows vfwwdm.dll wrapper without getting the chooser window? and using jmf to access and manipulate the device?
your help would be appreciated.
Egimbal2 wrote:
Yes, create a bean property that does the iterator.next() trick, then reference this bean property in your JSP using JSTL. This means wrapping a bean around the map, which is exactly what you do when you want to do these unorthodox things.I've followed the general thrust of this approach, if not exactly to the letter.
I'm using Spring as my MVC framework, so in my Controller—rather than in a bean that wraps the map, as gimbal2 suggested—I'm doing the 'iterator().next() trick' to retrieve the value from my map, and then adding it to the ModelAndView under the specific attribute name "myValue".
public ModelAndView mySpringHandlerMethod(HttpSession session) {
...obtain javaBean by calling back end...
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<c:out value="${myValue.numberOfStoreys}" />Thanks for the advice, folks, it certainly pointed me in the right direction.
Regards,
Ken. -
What is thecode to open webcam using JMF
hi, i am doing a project where i need to use web cam using JMF in the JPanel and also have to track the mouse event(e.g the mouse coordination) please help me with the code that opens a web cam in the pannel.
Hi,
Take a look to opendocument function.
Regards -
Error Playing .wav file on RHEL 4 using JMF
Hi,
We are using jmf api to play wav files on our application deployed on rhel version 4. But we are receiving the following error
**"Cannot find a Processor for: myfolder/myAudio.wav" --->
this exception is comming from javax.media.Manager
throw new NoProcessorException("Cannot find a Processor for: " + source);"**.
Any ideas what could be issue with this, am I missing some drivers/processor for wav files? I did a default jmf studio installation.
Thanks and Regards
Vikram Pancholi
Edited by: vpancholi on Sep 8, 2009 8:51 AMIf we take a look at the supported formats page...
[http://java.sun.com/javase/technologies/desktop/media/jmf/2.1.1/formats.html]
And the WAV file is supported by the cross-platform pack, AKA, jmf.jar.
If you're unable to open a WAV file, I'd say it's most likely because you don't have JMF.jar on your library path. You can fix that at runtime with the switch -djava.library.path=<whatever>
That's what I would say the issue is. -
Fast acquring of images using JMF
Hello!
I have been trying to write a class for reading frames from a video camera using JMF, however the BufferToImage.createImage appeared to be very slow -- the code is fast if the method is commented out. How can I get the images faster? Or perhaps read pixels directly from the video stream buffer? Or is there another problem with the code? If BufferToImage was constructed using Buffer.getFormat, it was also slow.
I attach the code that I have used for reading the frames.
Sincerely,
Artur Rataj
* A video input driver that uses Java Media Framework.
* This file is provided under the terms of the GNU General Public License.
* version 0.1, date 2004-07-21, author Artur Rataj
package video.drivers;
import java.io.*;
import java.awt.*;
import java.awt.image.*;
import javax.media.*;
import javax.media.protocol.*;
import javax.media.control.*;
import javax.media.format.*;
import javax.media.util.BufferToImage;
* This is a video driver that uses Java Media Framework to access video input devices.
public class JMFDriver extends VideoDriver implements ControllerListener {
* The input stream processor.
Processor processor;
* The stream from the input video device.
PushBufferStream frameStream;
* A converter from stream data to an image.
BufferToImage frameStreamConverter;
* A video stream buffer.
Buffer videoBuffer;
* Constructs a new driver.
public JMFDriver(String deviceAddress, int width, int height, int bitsPerPixel)
throws VideoDriverException {
super(deviceAddress, width, height, bitsPerPixel);
MediaLocator locator = new MediaLocator(deviceAddress);
if(locator == null)
throw new VideoDriverException("Device not found: " + deviceAddress);
javax.media.protocol.DataSource source;
try {
source = javax.media.Manager.createDataSource(locator);
} catch(IOException e) {
throw new VideoDriverException("Could not read device " + deviceAddress +
": " + e.toString());
} catch(NoDataSourceException e) {
throw new VideoDriverException("Could not read device " + deviceAddress +
": " + e.toString());
if(!( source instanceof CaptureDevice ))
throw new VideoDriverException("The device " + deviceAddress +
" not recognized as a video input one.");
FormatControl[] formatControls =
((CaptureDevice)source).getFormatControls();
if(formatControls == null || formatControls.length == 0)
throw new VideoDriverException("Could not set the format of images from " +
deviceAddress + ".");
VideoFormat videoFormat = null;
searchFormat:
for(int i = 0; i < formatControls.length; ++i) {
FormatControl c = formatControls;
Format[] formats = c.getSupportedFormats();
for(int j = 0; j < formats.length; ++j)
if(formats[j] instanceof VideoFormat) {
VideoFormat f = (VideoFormat)formats[j];
if(f.getSize().getWidth() == this.width &&
f.getSize().getHeight() == this.height) {
int bpp = -1;
if(f instanceof RGBFormat)
bpp = ((RGBFormat)f).getBitsPerPixel();
else if(f instanceof YUVFormat) {
YUVFormat yuv = (YUVFormat)f;
bpp = (yuv.getStrideY() + yuv.getStrideUV())*8/
this.width;
if(bpp == bitsPerPixel) {
videoFormat = (VideoFormat)c.setFormat(f);
break searchFormat;
if(videoFormat == null)
throw new VideoDriverException("Could not find the format of images from " +
deviceAddress + " at " + bitsPerPixel + " bits per pixel.");
try {
source.connect();
} catch(IOException e) {
throw new VideoDriverException("Could not connect to the device " +
deviceAddress + ": " + e.toString());
try {
processor = Manager.createProcessor(source);
} catch(IOException e) {
throw new VideoDriverException("Could not initialize the processing " +
"of images from " + deviceAddress + ": " + e.toString());
} catch(NoProcessorException e) {
throw new VideoDriverException("Could not initialize the processing " +
"of images from " + deviceAddress + ": " + e.toString());
processor.addControllerListener(this);
synchronized(this) {
processor.realize();
try {
wait();
} catch(InterruptedException e) {
throw new VideoDriverException("Could not initialize the processing " +
"of images from " + deviceAddress + ": " + e.toString());
processor.start();
PushBufferDataSource frameSource = null;
try {
frameSource = (PushBufferDataSource)processor.getDataOutput();
} catch(NotRealizedError e) {
/* empty */
PushBufferStream[] frameStreams = frameSource.getStreams();
for(int i = 0; i < frameStreams.length; ++i)
if(frameStreams[i].getFormat() instanceof VideoFormat) {
frameStream = frameStreams[i];
break;
videoBuffer = new Buffer();
videoBuffer.setTimeStamp(0);
videoBuffer.setFlags(videoBuffer.getFlags() |
Buffer.FLAG_NO_WAIT |
Buffer.FLAG_NO_DROP |
Buffer.FLAG_NO_SYNC);
processor.prefetch();
public void controllerUpdate(ControllerEvent event) {
if(event instanceof RealizeCompleteEvent)
synchronized(this) {
notifyAll();
* Acquires an image from the input video device.
public Image acquireImage() throws VideoDriverException {
try {
frameStream.read(videoBuffer);
} catch(IOException e) {
throw new VideoDriverException("Could not acquire a video frame: " +
e.toString());
frameStreamConverter = new BufferToImage(
(VideoFormat)frameStream.getFormat());
Image out = frameStreamConverter.createImage(videoBuffer);
return out;
* Closes the input video device.
public void close() {
processor.close();
public static void main(String[] args) throws Exception {
JMFDriver driver = new JMFDriver("v4l://0", 768, 576, 16);
while(true)
Image image = driver.acquireImage();
System.out.print(".");
System.out.flush();This is how you do this:
First you must know upfront what type of a format your camera is using,
all the valid formats are static members of BufferedImage.
Next you need to create a BufferedImage of the same format.
Here is an example:
My creative webcam is set to: 640x480 RGB 24bit color. i Create a BufferedImage into which i will copy the buffer:
BufferedImage buff = new BufferedImage(640,480,BufferedImage.TYPE_3BYTE_BGR);
Next the copy operation where appropriate
cbuffer is my javax.media.Buffer from which i will copy the image data:
System.arraycopy((byte[])cbuffer.getData(), 0, ((DataBufferByte) buff.getRaster().getDataBuffer()).getData(),0,img_size_bytes);
Things to note here, are i cast the cbuffer.getData() to byte[] because that is the type of data this is. I cast buff.getRaster().getDataBuffer() to DataBufferByte because the bufferedimage is of type TYPE_3BYTE_BGR.
also, img_size_bytes equals to 640*480*3
This operation will copy the raw buffer into your buffered image avoiding the use of BufferToImage
Only problem is the image will be flipped, but just flip the webcam to correct this =) -
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You don't need to buy anything but you should have backups.
you can delete #2 you created. Then resize to full drive.
There are already
GPT
EFI
Mac
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Reading the instructions first and just swallow whatever pride or inidignation. It is a "my way or highwar" setup and utility,.
http://manuals.info.apple.com/en_US/boot_camp_install-setup_10.7.pdf
create a Windows support software (drivers) CD or USB storage media
http://support.apple.com/kb/HT4407
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https://support.apple.com/kb/HT4569
Installation Guide Instructions for all features and settings.
Boot Camp 4.0 FAQ Get answers to commonly asked Boot Camp questions.
Windows 7 FAQ Answers to commonly asked Windows 7 questions.
http://www.apple.com/support/bootcamp/ -
How to use jmf convert the rtp packet (captured by jpcap) in to wav file?
I use the jpcap capture the rtp packets(payload: ITU-T G.711 PCMU ,from voip)
and now I want to use JMF read those data and convert in to wav file
How to do this? please help mepedrorp wrote:
Hi Captfoss!
I fixed it but now I have another problem. My application send me this message:
Cannot initialize audio renderer with format: LINEAR, Unknown Sample Rate, 16-bit, Mono, LittleEndian, Signed
Unable to handle format: ALAW/rtp, Unknown Sample Rate, 8-bit, Mono, FrameSize=8 bits
Failed to prefetch: com.sun.media.PlaybackEngine@1b45ddc
Error: Unable to prefetch com.sun.media.PlaybackEngine@1b45ddc
This time the fail is prefetching. I have no idea why this problem is. Could you help me?The system cant play an audio file / stream if it doesn't know the sample rate...somewhere along the way, in your code, the sample rate got lost. Sample rates are highly important, because they tell the system how fast to play the file.
You need to go look through your code and find where the sample rate information is getting lost... -
P2p video streaming using jmf (is it possible to "forward" the stream ?)
Hello
In my project a peer will start streaming captured video from the webcam to his neighbors and then his neighbors will have to display the video and forward(stream) it to their neighbors and so on . So my question is can i do this using jmf , a simple scenario will be : peer_1 streams to peeer_2 and then peer_2 to forward(stream) the video received from peer_1 to peer_3 .
I've read the jmf2_0 guide and i've seen that it's only possible to stream from a server to a client and that's about it , but i want also the client to pass the stream forward to another client ... like for example [http://img72.imageshack.us/img72/593/p2pjmf.gif|http://img72.imageshack.us/img72/593/p2pjmf.gif]
I want to know at least if this it's possible with jmf or should i start looking for another solution ? and do you have any examples of such projects or examples of forwarding the stream with jmf ....
thanks for any suggestions_Cris_ wrote:
I want to know at least if this it's possible with jmf or should i start looking for another solution ? and do you have any examples of such projects or examples of forwarding the stream with jmf .... You can do what with JMF. Once you receive the stream, it's just a video stream. You can do anything you want with it...display it, record it, or send it as an RTP stream. -
Good webcam to use with Skype please
I have a G5 iMac running the latest version of Tiger. I would like some advice on buying a good webcam to use with Skype. I'll be going Mac to PC. I've heard that the Logitech Fusion is good. Any suggestions?
Thanks,
JimHi Jim,
Any Firewire (6 pin to 6 pin) DV capable CamCorder
Any Firewire Web cam
Any USB cam with Mac Drivers and this utility http://www.ecamm.com/mac/ichatusbcam/
10:53 PM Monday; January 22, 2007 -
Question - applet using JMF for playing .mov
I develop an applet using JMF for playing .mov. It works fine, and the applet starts normally. Even my applet works fine from other computers in our LAN (The applet runs ok without JMF). But only on one PC it doesn't work and I get the following message
Failed to configure: com.sun.media.PlaybackEngine@a7c45e
Bad header in the media: moov atom not present
Error: Unable to realize com.sun.media.PlaybackEngine@a7c45e
FATAL ERROR: Failed to realize: failed to parse the input media.
Exception in thread "JMF thread: SendEventQueue: com.sun.media.content.unknown.Handler" java.lang.Error: Failed to realize: failed to parse the input media.
at PlayerApplet.Fatal(PlayerApplet.java:201)
at PlayerApplet.controllerUpdate(PlayerApplet.java:191)
at com.sun.media.BasicController.dispatchEvent(BasicController.java:1254)
at com.sun.media.SendEventQueue.processEvent(BasicController.java:1286)
at com.sun.media.util.ThreadedEventQueue.dispatchEvents(ThreadedEventQueue.java:65)
at com.sun.media.util.ThreadedEventQueue.run(ThreadedEventQueue.java:92)
My html:
<html>
<head><title>PlayerApplet</title></head>
<body>
<applet code="PlayerApplet.class" archive="fobs4jmf.jar, customizer.jar, jmf.jar, mp3plugin.jar, sound.jar, multiplayer.jar, mediaplayer.jar" width=640 height=510>
<param name=file value="safexmas.mov">
</applet>
</body>
</html>
Anyone can help me?
Thanks for your timeIt started to work but I had to install fobs4jmf on the client computer.
And put .dll to windows/system33 directory. But how can I play video using applet in browser without installing any software on the client machine? -
Hi guys,
I wanna create an applet that just takes a snapshot image from the user's webcam in clientside,
so I wouldn't like to tell the user to install JMF(java media framework) first on clientside.
Does anyone know if it's possible to access the webcam from a standard JRE, if yes than how without using JMF?
Any link or anything else would be greatly appreciated, since anything I found on the net was based on JMF...I have already done a software to distribute that had to use a webcam to take pictures. Since I didnt want the client to install JMF, I reused some classes from JMFregistry to install it from my own software.
Then, inside my software there was a button "Check for web devices". After running that option once, everything was ok to use the webcam. Of coarse I had to bundle the JMF together. -
Hello,
I've got an applet that consumes a lot of CPU. I'm studying to migrate this applet to a pda, but it's not enough cpu for it. I'm reading JMF docs and I decide to generate a movie with the output of an applet. �If it's possible? My idea is to create the movie on the server. I can modify my applet to avoid the use of the applet inheritance and then render the output to an standard movie format. After I will send the movie to the browser
You can see the applet here. Click on View route 3D under the flash movie.
http://www.tmb.net/vullanar/en_US/resultatcerca.jsp?tipusrepre=0&origenx=31514.420&origeny=82758.000&descripcioorigen=L1+-ARCDE+TRIOMF&destix=34704.550&destiy=87378.460&descripciodesti=L2+-ARTIGUES-SANTADRI%C0&tipustransport=0&numtransbords=2&tempscaminant=20&velocitatcaminant=1&tipushora=1&dia=27&mes=05&hora=12&minut=22&idioma=en_US&operador=TMB&poblacioorigen=1&poblaciodesti=1
Thanks in advance,
David B.passionforjava2 wrote:
...I have issues with applet unable to transmit voice using JMF. i know it is a security issue. As the error on the console says
java.lang.RuntimeException: No permission to capture from applets
Error : Couldn't create DataSourceWhen JMF is installed, it generally offers a checkbox to allow or deny 'capture in applet'. By default it is not checked, and if the user goes with that recommendation, I am not sure that anything will overrule that.
In a folder iPhone/myphone/What is the URL where we can visit this applet?
.. i have applet embedded html file along with .jar files with required classed and applet signed. Are you prompted to trust the digitally signed code? You can see the dialog I mean by visiting the applet linked from [http://pscode.org/test/docload/].
..Along with that .jar i do have jmf.jar and java.policy.applet file and jmf.properties file . Forget the policy files, they are a waste of time, and completely impractical for end users. -
Source code for audio- video conferencing using JMF
i am doing a project on VIDEO CONFERNCING using JMF. i am using the HP WEBCAM of my laptop. guys i desperately need help. plz give me the code if any of has it.plz plz its urgent
i am doing a project on VIDEO CONFERNCING using JMF. i am using the HP WEBCAM of my laptop. guys i desperately need help. plz give me the code if any of has it.plz plz its urgentYou can't get the code for the whole application.....
but you can get plenty of code to get started on making your own video conf. application using JMF here .
Also, there is a [JMF Forum|http://forums.sun.com/forum.jspa?forumID=28] here. If you face any problems while coding, you can post your queries there.
Thanks! -
Problem with Transmitting media using JMF
Hello Everyone !!
I am working on an application called SIPSpeaker which listens for incoming calls, answer the call and plays a message. I am done with the first two parts of the application, i.e. it can successfully answers the call. I am now facing problem with transmitting audio to the SIP Phone (the caller). I am using JMF and I am trying to send the audio over RTP.
My code looks something like this....
locator = new MediaLocator("rtp://130.237.214.124:" + port + "/audio");
f = new File("C:/1.wav");
try {
ds = Manager.createDataSource(f.toURL());
} catch (NoDataSourceException ex) {
ex.printStackTrace();
} catch (MalformedURLException ex) {
ex.printStackTrace();
} catch (IOException ex) {
ex.printStackTrace();
format = new Format[]{new AudioFormat(AudioFormat.GSM_RTP,8000,8,1)};
contentDesc = new ContentDescriptor(ContentDescriptor.RAW_RTP);
processor = Manager.createProcessor(ds);
waitForState(processor,Processor.Configured);
processor.setContentDescriptor(contentDesc);
processor.getTrackControls()[0].setFormat(format[0]);
waitForState(processor,Processor.Realized);
try {
sink = Manager.createDataSink(processor.getDataOutput(),locator);
System.out.println("6");
} catch (NotRealizedError ex) {
ex.printStackTrace();
} catch (NoDataSinkException ex) {
ex.printStackTrace();
processor.start();
try {
sink.open();
sink.start();
} catch (SecurityException ex) {
ex.printStackTrace();
} catch (IOException ex) {
ex.printStackTrace();
we are required to work with a .wav file as input ....
i am new to java and to JMF and i have absolutely no idea whats going wrong...
please help me
Regards,
Sanjay !!Hello
following is the error i get
Failed to realize: com.sun.media.ProcessEngine@618d26
Cannot build a flow graph with the customized options:
Unable to transcode format: mpeglayer3, 44100.0 Hz, 16-bit, Stereo, LittleEndian, Signed, 16000.0 frame rate, FrameSize=32768 bits
to: mpegaudio/rtp, 8000.0 Hz, 8-bit, Mono
outputting to: RAW/RTP
Error: Unable to realize com.sun.media.ProcessEngine@618d26
what could be the problem ??? -
Hallo,
Is it advisable to use JMF in an applet? There are several vesions to download ( Cross-platform Java , Linux Performance Pack, Windows Performance Pack). On my windows 7 I could determine a capture devce (microphone) only with the jar originated from Windows Performance Pack and only after running jmfinit.exe. Is it possible to determine this with Cross-platform Java package, and if yes then how to do it?
with regards
Rafal Ziolkowski
Edited by: user10418558 on 2012-03-26 03:07Hi,
I found JMF works better as an application running on the local machine; you can deploy the app with java web start, it works like a charm.
I assume there are ways to get the applet to work but just understand how the API works; the "Cross Platform" contains all the libs required but there are native bindings that are required for your OS. The windows performance pack contains all the binary files that allow JMF to access the hardware such as a webcam; as does the linux pack, but for linux you need to extract the cross platform libs in the same location as the install script for it to work. Also another note here is that there is no native libraries (that I am aware of) for OS X, so you cannot install or run JMF on Apple Macintosh.
If you want to install JMF on linux you need to set your LD_PRELOAD var to where your V4L compat library is, check this forum for details I posted it earlier.
There is also another tweak you might need to do with the install script, the tail argument is incorrect; this needs to be changed to fit your distro.
So in short, you have to install the performance pack for your system in order for JMF to work.
Maybe you are looking for
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