Video grab and save using labview

Dear All
I am trying to grab and save a video from ni smart camera (NI 1744). I
am using Grab and save vi which is attached. I open a new project in
labview 10. To this project I add the smart camera as a RT target and
then add the attached grab and save vi under the smart camera in the
project. I right click the smart camera and select " Deploy all".
Deployment starts but it terminates displaying the following error
message:
" LabVIEW: Failed to load shared library
nivissvc.*:LV_AviMovieOpen:C. Ensure that the library is present on
the RT target. Use MAX to install NI software or FTP to transfer
custom libraries to the RT target.
Deployment completed with errors "
Kindly note that I am able to grab a video using MAX (Measurement and
Automation) without any problem. I have also re installed IMAQ RT,
Vision RT, IMAQdx RT and Labview RT on the smart camera several times
but that has not solved the problem. I shall be really grateful if
anyone can provide any guidance regarding how to carry out successful
deployment of the attached vi or if anyone can suggest an alternative
way of grabbing and saving a video from NI smart Camera (NI 1744).
System Specifications: Toshiba Satellite Laptop, Windows 7 home
premium. Labview 10.
Attachments:
Grab and Save to AVI IMAQdx 8_6.vi ‏54 KB

AVI is still not supported for the 1744, which uses a VxWorks Operating System (as compared with the newer series of smart cameras the 177x which use pharlap OS and support the new AVI functions).
Attached is a sample LV project and code to illustrate how to acquire images on your smart camera and write those to a network image variable. I also made a host side VI to read the image variable where you can use your AVI function to save to your local host machine images acquired from the smart camera.
Hopes thishelps,
Brad
Attachments:
Smart Camera Acq Example.zip ‏35 KB

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package com.snn.multimedia;
* @(#)FrameAccess.java 1.5 01/03/13
* Copyright (c) 1999-2001 Sun Microsystems, Inc. All Rights Reserved.
* Sun grants you ("Licensee") a non-exclusive, royalty free, license to use,
* modify and redistribute this software in source and binary code form,
* provided that i) this copyright notice and license appear on all copies of
* the software; and ii) Licensee does not utilize the software in a manner
* which is disparaging to Sun.
* This software is provided "AS IS," without a warranty of any kind. ALL
* EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, INCLUDING ANY
* IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR
* NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN AND ITS LICENSORS SHALL NOT BE
* LIABLE FOR ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING
* OR DISTRIBUTING THE SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN OR ITS
* LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR FOR DIRECT,
* INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE DAMAGES, HOWEVER
* CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY, ARISING OUT OF THE USE OF
* OR INABILITY TO USE SOFTWARE, EVEN IF SUN HAS BEEN ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGES.
* This software is not designed or intended for use in on-line control of
* aircraft, air traffic, aircraft navigation or aircraft communications; or in
* the design, construction, operation or maintenance of any nuclear
* facility. Licensee represents and warrants that it will not use or
* redistribute the Software for such purposes.
import java.util.Date;
import java.util.Arrays;
import java.util.Iterator;
import javax.imageio.ImageIO;
import javax.imageio.stream.ImageOutputStream;
import javax.imageio.ImageWriter;
import java.awt.*;
import java.awt.image.BufferedImage;
import java.awt.image.DataBufferByte;
import javax.media.*;
import javax.media.control.FramePositioningControl;
import javax.media.control.TrackControl;
import javax.media.Format;
import javax.media.format.*;
import javax.media.util.BufferToImage;
import javax.media.util.ImageToBuffer;
import java.io.FileOutputStream;
import java.io.OutputStream;
import com.sun.image.codec.jpeg.*;
* Sample program to access individual video frames by using a
* "pass-thru" codec. The codec is inserted into the data flow
* path. As data pass through this codec, a callback is invoked
* for each frame of video data.
public class FrameAccess extends java.awt.Frame implements ControllerListener
Processor p;
Object waitSync = new Object();
boolean stateTransitionOK = true;
* Given a media locator, create a processor and use that processor
* as a player to playback the media.
* During the processor's Configured state, two "pass-thru" codecs,
* PreAccessCodec and PostAccessCodec, are set on the video track.
* These codecs are used to get access to individual video frames
* of the media.
* Much of the code is just standard code to present media in JMF.
public boolean open(MediaLocator ml)
try
p = Manager.createProcessor(ml);
catch (Exception e)
System.err.println("Failed to create a processor from the given url: "
+ e);
return false;
p.addControllerListener(this);
// Put the Processor into configured state.
p.configure();
if (!waitForState(p.Configured))
System.err.println("Failed to configure the processor.");
return false;
// So I can use it as a player.
p.setContentDescriptor(null);
// Obtain the track controls.
TrackControl tc[] = p.getTrackControls();
if (tc == null)
System.err.println("Failed to obtain track controls from the processor.");
return false;
// Search for the track control for the video track.
TrackControl videoTrack = null;
for (int i = 0; i < tc.length; i++)
if (tc.getFormat() instanceof VideoFormat)
videoTrack = tc[i];
break;
if (videoTrack == null)
System.err.println("The input media does not contain a video track.");
return false;
VideoFormat currentFormat = (VideoFormat)videoTrack.getFormat();
System.err.println("Video format: " + videoTrack.getFormat() );
videoTrack.setFormat(new VideoFormat("RGB", currentFormat.getSize(), currentFormat.getMaxDataLength(), currentFormat.getDataType(), currentFormat.getFrameRate()));
// Instantiate and set the frame access codec to the data flow path.
try
// Try to retrieve a FramePositioningControl from the player.
FramePositioningControl fpc = (FramePositioningControl) p.getControl("javax.media.control.FramePositioningControl");
if (fpc == null)
System.err.println("The player does not support FramePositioningControl.");
System.err.println("There's no reason to go on for the purpose of this demo.");
return false;
Time duration = p.getStopTime();
long totalFrames = 0;
if (duration != Duration.DURATION_UNKNOWN)
System.err.println("Movie duration: " + duration.getSeconds());
totalFrames = fpc.mapTimeToFrame(duration);
if (totalFrames != FramePositioningControl.FRAME_UNKNOWN)
System.err.println("Total # of video frames in the movies: "
+ totalFrames);
} else
System.err.println("The FramePositiongControl does not support mapTimeToFrame.");
} else
System.err.println("Movie duration: unknown");
long[] frames;
if (totalFrames > 0L)
double intervalDouble = Math.floor(totalFrames / 5.0);
long interval = new Double(intervalDouble).longValue();
frames = new long[5];
frames[0] = 1;
frames[1] = frames[0] + interval;
frames[2] = frames[1] + interval;
frames[3] = frames[2] + interval;
frames[4] = frames[3] + interval;
} else
frames = new long[1];
frames[0] = 1;
// Codec codec[] = { new PreAccessCodec(), new PostAccessCodec()};
Codec codec[] = { new OverlayCodec(frames)};
videoTrack.setCodecChain(codec);
catch (UnsupportedPlugInException e)
System.err.println("The process does not support effects.");
// Realize the processor.
p.prefetch();
if (!waitForState(p.Prefetched))
System.err.println("Failed to realize the processor.");
return false;
// Display the visual & control component if there's one.
setLayout(new BorderLayout());
Component cc;
Component vc;
if ((vc = p.getVisualComponent()) != null)
add("Center", vc);
if ((cc = p.getControlPanelComponent()) != null)
add("South", cc);
// Start the processor.
p.start();
setVisible(true);
return true;
public void addNotify()
super.addNotify();
pack();
* Block until the processor has transitioned to the given state.
* Return false if the transition failed.
boolean waitForState(int state)
synchronized (waitSync)
try
while (p.getState() != state && stateTransitionOK)
waitSync.wait();
catch (Exception e)
return stateTransitionOK;
* Controller Listener.
public void controllerUpdate(ControllerEvent evt)
if (evt instanceof ConfigureCompleteEvent
|| evt instanceof RealizeCompleteEvent
|| evt instanceof PrefetchCompleteEvent)
synchronized (waitSync)
stateTransitionOK = true;
waitSync.notifyAll();
} else
if (evt instanceof ResourceUnavailableEvent)
synchronized (waitSync)
stateTransitionOK = false;
waitSync.notifyAll();
} else
if (evt instanceof EndOfMediaEvent)
p.close();
System.exit(0);
* Main program
public static void main(String[] args)
if (args.length == 0)
prUsage();
System.exit(0);
String url = args[0];
if (url.indexOf(":") < 0)
prUsage();
System.exit(0);
MediaLocator ml;
if ((ml = new MediaLocator(url)) == null)
System.err.println("Cannot build media locator from: " + url);
System.exit(0);
FrameAccess fa = new FrameAccess();
if (!fa.open(ml))
System.exit(0);
static void prUsage()
System.err.println("Usage: java FrameAccess <url>");
* Inner class.
* A pass-through codec to access to individual frames.
public class PreAccessCodec implements Codec
* Callback to access individual video frames.
void accessFrame(Buffer frame)
// For demo, we'll just print out the frame #, time &
// data length.
long t = (long) (frame.getTimeStamp() / 10000000f);
System.err.println("Pre: frame #: " + frame.getSequenceNumber()
+ ", time: " + ((float) t) / 100f + ", len: "
+ frame.getLength());
* The code for a pass through codec.
// We'll advertize as supporting all video formats.
protected Format supportedIns[] = new Format[] {
new VideoFormat(null)
// We'll advertize as supporting all video formats.
protected Format supportedOuts[] = new Format[] {
new VideoFormat(null)
Format input = null, output = null;
public String getName()
return "Pre-Access Codec";
// No op.
public void open()
// No op.
public void close()
// No op.
public void reset()
public Format[] getSupportedInputFormats()
return supportedIns;
public Format[] getSupportedOutputFormats(Format in)
if (in == null)
return supportedOuts;
} else
// If an input format is given, we use that input format
// as the output since we are not modifying the bit stream
// at all.
Format outs[] = new Format[1];
outs[0] = in;
return outs;
public Format setInputFormat(Format format)
input = format;
return input;
public Format setOutputFormat(Format format)
output = format;
return output;
public int process(Buffer in, Buffer out)
// This is the "Callback" to access individual frames.
accessFrame(in);
// Swap the data between the input & output.
Object data = in.getData();
in.setData(out.getData());
out.setData(data);
// Copy the input attributes to the output
out.setFormat(in.getFormat());
out.setLength(in.getLength());
out.setOffset(in.getOffset());
return BUFFER_PROCESSED_OK;
public Object[] getControls()
return new Object[0];
public Object getControl(String type)
return null;
public class OverlayCodec extends PreAccessCodec
long[] myFrames;
BufferedImage work;
byte[] workData;
int width;
int height;
int dataLen;
RGBFormat supportedRGB = new RGBFormat(null, // size
Format.NOT_SPECIFIED, // maxDataLength
Format.byteArray, // dataType
Format.NOT_SPECIFIED, // frameRate
24, // bitsPerPixel
3, 2, 1, // red/green/blue masks
3, // pixelStride
Format.NOT_SPECIFIED, // lineStride
Format.FALSE, // flipped
Format.NOT_SPECIFIED); // endian
public OverlayCodec(long[] frames)
// force specific input format
supportedIns = new Format[] {
supportedRGB};
myFrames = new long[frames.length];
System.arraycopy(frames, 0, myFrames, 0, frames.length);
public String getName()
return "Capture Codec";
public Format setInputFormat(Format format)
if ((format != null) && (format instanceof RGBFormat)
&& format.matches(supportedRGB))
// set up working image if valid type
// (it should be since we insisted!)
Dimension size = ((RGBFormat) format).getSize();
width = size.width;
height = size.height;
dataLen = width * height * 3;
if ((dataLen > 0)
&& ((work == null) || (work.getWidth() != width)
|| (work.getHeight() != height)))
// working image - same 3-byte format as buffer
work = new BufferedImage(width, height,
BufferedImage.TYPE_3BYTE_BGR);
// reference to pixel data
workData = ((DataBufferByte) work.getRaster().getDataBuffer()).getData();
return format;
* Callback to access individual video frames.
void accessFrame(Buffer in)
try
if (Arrays.binarySearch(myFrames, in.getSequenceNumber()) >= 0)
BufferToImage stopBuffer = new BufferToImage((VideoFormat) in.getFormat());
Image stopImage = stopBuffer.createImage(in);
BufferedImage outImage = new BufferedImage(140, 96,
BufferedImage.TYPE_INT_RGB);
Graphics og = outImage.getGraphics();
og.drawImage(stopImage, 0, 0, 140, 96, null);
FileOutputStream fout = new FileOutputStream("image"
+ in.getSequenceNumber() + ".jpg");
writeImage(outImage, fout);
catch (Exception e)
e.printStackTrace();
public int process(Buffer in, Buffer out)
try
accessFrame(in);
BufferToImage stopBuffer = new BufferToImage((VideoFormat) in.getFormat());
Image stopImage = stopBuffer.createImage(in);
ImageToBuffer outImagebuffer = new ImageToBuffer();
out = outImagebuffer.createBuffer(stopImage, p.getRate());
// Swap the data between the input & output.
in.copy(out, true);
catch (Exception e)
e.printStackTrace();
return BUFFER_PROCESSED_OK;
void writeImage(BufferedImage outImage, OutputStream os) throws Exception
Iterator writers = ImageIO.getImageWritersByFormatName("jpg");
ImageWriter writer = (ImageWriter) writers.next();
ImageOutputStream ios = ImageIO.createImageOutputStream(os);
writer.setOutput(ios);
writer.write(outImage);
ios.close();

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