How to synchronise two videos?

i declare two Players for play two different video files, and when the time pass, the lag time between players Increase, i.e, the first video lasts 80s, and the second lasts 90, when the first is finished, the lag time is 0.3s, how can i do for reduce it? thx!

Hi,
Firslty, when you have 3 cubes which are transparently partitioned.Why do you want to synchronize them. Is your objective to have similar outline in all the 3 cubes , thereby letting users access information of all 3 cubes from any cube.
Generally, we see the following design.
Virtual Cube ------This cube is transparently paritioned to all the cubes ( 1 to 5)
Cube1 Cube2 Cube3 Cube4 Cube5 -----These are individual cubes, where actual storage is there.
Generally, users access Virtual cube for information retrieval.This way, you need to synchronize the outlines between virtual cube and the relevant cube1..5.
Hope this adds value
Sandeep Reddy Enti
HCC
http://hyperionconsultancy.com/

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Using iMovie-does anyone knows how to put two videos side by side in the same screen/

Using iMovie-Does anyone knows how to put two videos side by side in the same screen?

See iMovie Help here.
http://help.apple.com/imovie/mac/10.0/#movb8c659f55

How to play two videos at the same time

Hi everyone!
Ok, so what I'm trying to do is basically play two videos, which are already saved on the computer, at the same time. I can get one video to play, but when i try to start another it just displays a blank screen.
import javax.swing.*;
import javax.media.*;
import java.awt.*;
import javax.media.protocol.*;
public class TwoVideoTest {
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     MediaLocator locator2 = null;
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     locator1 = new MediaLocator("file:/C:/truck1.mpg");
     locator2 = new MediaLocator("file:/C:/truck2.mpg");
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     System.out.println("COULNDT CREATE LOCATORS IN MAIN TEST CLASS");
                      System.exit(-1);
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HELLO AGAIN! I guess i post too soon....
So i modified my code and now the videos play together. Threads, sigh.
But the audio that comes with the video doesn't appear to be starting at the same time. And this problem I ASSURE you i have no clue how to handle. And yes i know, the two video audios will overlap, but this a test for heavens sake!
Anyways, heres the modified code in case it will help anyone
import javax.swing.*;
import javax.media.*;
import java.awt.*;
import javax.media.protocol.*;
public class Video implements Runnable{
     String url;
     MediaLocator locator;
     Player player;
     JPanel panel;
     public Video (String url,JPanel panel) {
          this.url = url;
          try {
               locator = new MediaLocator(url);
               player = Manager.createRealizedPlayer(locator);
               panel.add(player.getVisualComponent());
               player.start();
          } catch (Exception e) {
               System.out.println("ERROR CREATING MEDIALOCATOR");
               System.exit(-1);
     public void run() {
          try {
          Thread.sleep(100);
          } catch(Exception e) {}
     public static void main(String[]args) {
        JFrame frame = new JFrame();
          frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
          JPanel panel1 = new JPanel();
          JPanel panel2 = new JPanel();
          panel1.setPreferredSize(new Dimension(100,100));
          panel2.setPreferredSize(new Dimension(100,100));
          Thread thread1 = new Thread(new Video("file:/C:/truck1.mpg",panel1));
          Thread thread2 = new Thread(new Video("file:/C:/truck2.mpg",panel2));
          frame.getContentPane().add(panel1);
          frame.getContentPane().add(panel2);
          frame.setSize(new Dimension(500,500));
          frame.setVisible(true);
          thread1.start();
          thread2.start();

How to view two video files synchronously?

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second, i have two audio chips about telephoning. c is the record of one terminal,and d is the other record of terminal .i want to conbine c and d as only one file ,so,when i play it ,i will hear a full conversation.
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These are back-ups for the IFO files, which are used for play and control functions for the DVD.
http://filext.com/file-extension/BUP
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Hi,
I have two matching stills, one is marked up with guidelines as to where I wish the pan window to go, this is on video track 2, on track 1 is the pure image less these guidance notes. I have turned off default scale to frame size and this imported montage 'still' is larger than my project size. I now hope to position the still with the guidance lines and area showing start of pan for frame 1 and have the underlying matching image on track1 take up the same position also.
I thus need to link both images so that moving the one moves the other. How do I do this ?
Currenly I can move the track2 image but track 1 image doesnt follow with it.
Once I have indicated using keyframes the path I want to follow, I shall turn off track 1 and have Premiere create a movie just with the good image showing.
How do I link the two image tracks together ?
I am otherwise following a tutorial at http://www.savevid.com/video/create-an-advanced-photo-montage-in-premiere-pro.html which does the montage pan though I have just one photo, on tracks 1 and 2.
Envirographics.

Hi,
I have followed this advice, the pan route is now perfect along with some tweaking of the bezier handles to make it go straight along the top from west to east..
However on the monitor it plays with comb like artefacts along edges , on the produced avi file from Export>Movie, one sees double, a balloon has two strings for example. Humans have a ghosted edge all around them. As the image stops moving at end of the pan I see the two ballon strings get closer and become one just as the pan ends. Its blurred, I also see tide marks in some places, back of a guys shirt, as if its in 256colour mode !Written using an authoring prog to dvd the TV playback is no better. Just nothing like the stills in the same video from which a montage was made to use for this Ken Burns effect. Why is the pan a mess ? It was a bit jerky on the PC, I hoped TV viewing would see an improvement.
I have done a right-click on the image, Field Options and checked Flicker Removal as seen in a thread, made no difference.
I'd also Crop the vertical in PS to just what was needed for the Project's/Sequence's vertical Frame dimension.”…done that
Project is:- , custom size 1152 x 768 PAL square pixel into which I brought a montage 3754 x 1221 also square pixel. This yields crisp detail even when zoomed in on in photoshop. So why the jerky double image effect ?
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Envirographics

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Hello there,
I making a program in which I can capture the video and save it to a file, suppose the file name is "foo".
O.K. now every time I run the program it overrites the previous one(video file).
So the problem is every time I run the program the video should be added to the previous one that is concatenated.
That there are 2 videos
1> one is stored on the disk already.
2> other one is which is live and is going to be captured.
Hope you can understand.
Please help me.
Thanks in advance.

Thanks Captfoss,
I got another idea
I just used the Cancat class from Concat.java example.
Here is the code\
import java.awt.*;
import java.net.*;
import javax.media.*;
import java.awt.event.*;
import javax.swing.*;
import javax.media.format.*;
import javax.media.protocol.*;
import javax.media.control.*;
import javax.media.Manager.*;
import java.util.*;
import java.io.*;
import java.util.Vector;
import java.io.File;
import javax.media.control.TrackControl;
import javax.media.control.QualityControl;
import javax.media.Format;
import javax.media.datasink.*;
import javax.media.protocol.DataSource;
import java.io.IOException;
/* This program is to capture from a webcam and save it in disk */
public class run extends JFrame implements ControllerListener,ActionListener
     Processor p; DataSink sink;
     MenuBar mb;
     MenuItem start,stop;
     Menu file;
     Vector dl;
     MediaLocator ml,oml;
     MediaLocator iml[] = new MediaLocator[2];
     DataSource ds,original,clone;
     Player player;
     ContentDescriptor cd;
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          mb=new MenuBar();
          file=new Menu("File");
          start=new MenuItem("Start");
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          // I start the processor and sink after clicking the start button
          // I start the processor and sink after clicking the start button
          start.setEnabled(false);
          stop=new MenuItem("Stop");
          // I use stop button to stop the processor and the sink
          file.add(start);
          file.add(stop);
          mb.add(file);
          setMenuBar(mb);
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          stop.addActionListener(this);
          addWindowListener
          (new WindowAdapter()
                    public void windowClosing(WindowEvent we)
                         System.exit(0);
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               iml[1] = ml;
               iml[0] = new MediaLocator("file:/e:/J-Solve1.avi");
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               System.err.println("Got exception "+e);
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          Format CapFormat = null;
          String type = "N/A";
          CaptureDeviceInfo deviceInfo=null;
          boolean VideoFormatMatch=false;
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               // search for video device
               deviceInfo = (CaptureDeviceInfo)deviceList.elementAt(i);
               if(deviceInfo.getName().indexOf("vfw:")<0)
                    continue;
               Format deviceFormat[] = deviceInfo.getFormats();
               for (int f=0;f<deviceFormat.length;f++)
                    if(deviceFormat[f] instanceof RGBFormat)type="RGB";
                    if(deviceFormat[f] instanceof YUVFormat)type="YUV";
                    if(deviceFormat[f] instanceof JPEGFormat)type="JPG";
                    Dimension size = ((VideoFormat)deviceFormat[f]).getSize();
                    //camImgSize.addElement(type+" "+ size.width+"x" +size.height);
                    CapDevice = deviceInfo;
                    //camCapDevice.addElement(CapDevice);
                    System.out.println("Video device = "+ deviceInfo.getName());
                    CapFormat = (VideoFormat)deviceFormat[f];
                    //camCapFormat.addElement(CapFormat);
                    System.out.println("Video format = " + deviceFormat[f].toString());
                    VideoFormatMatch=true; // at least one
          if(VideoFormatMatch==false)
               if(deviceInfo!=null)System.out.println(deviceInfo);
               System.out.println("Video Format not found");
               return false;
          return true;
     public void addNotify()
          super.addNotify();
          pack();
     public void actionPerformed(ActionEvent ae)
          try
               if(ae.getActionCommand().equals("Start"))
                    sink.open();
                    sink.start();
                    p.start();
                    player.start();
                    System.out.println("start");
                    Concat concat = new Concat();
                    if (!concat.doIt(iml, oml))
                             System.err.println("Failed to concatenate the inputs");
               else
                    player.stop();
                    p.stop();
                    p.close();
                    //Thread.sleep(1000);
                    sink.stop();
                    sink.close();
                    System.out.println("stop");
          catch(Exception e)
               System.out.println("Some problem "+e);
     public synchronized void controllerUpdate(ControllerEvent ce)
          try
               if (ce instanceof RealizeCompleteEvent)
                    Component comp;
                    System.out.println("Realized");
                    sink = Manager.createDataSink(p.getDataOutput(), new MediaLocator("file:/e:/J-Solve1.avi"));
                    start.setEnabled(true);
                    if ((comp = player.getVisualComponent()) != null)
                         add (BorderLayout.CENTER, comp);
                    else
                         System.out.println("No visual component");
                    //if ((comp = player.getControlPanelComponent()) != null)
                    //     add (BorderLayout.SOUTH, comp);
                    validate();
                    System.out.println("Updated");
          catch(Exception e)
               System.out.println("Exception rasied "+e);
     public static void main(String s[])
          run r = new run();
}But it gives exception
Create processor for : file:/e:/J-Solve1.avi
Create processor for : vfw://0
Java.io.IOException:Capture device in use
Cannot create processor for given URL : java.media.noProcessorException
Error instantiating the class : com.sun.media.protocol.vfw.Datasource
Failed to concatenate
My idea is right, but there is a problem
The catured ml is ok,
but for on going capture for which my class and concat class both try to make a processor.
Which gives this error.
How to resolve this problem.
Thanks in advance.

Re: How to merge two video files in a single file.

If you want to get just sequence of two files, so you can use http://java.sun.com/products/java-media/jmf/2.1.1/solutions/Concat.html I suppose.
Or some for merging on http://java.sun.com/products/java-media/jmf/2.1.1/solutions/

Hi watergad,
ThX good help!
NeuralC

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mc2.next_mc=mc1;
mc1.x=mc2.x;
mc1.y=mc2.y;
mc2.visible=false;
mc1.addEventListener(MouseEvent.CLICK,startRotateF);
mc2.addEventListener(MouseEvent.CLICK,startRotateF);
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Hi there,
I have some problem which is tedious.
You see, I have used 2 different camcorder to film the same scene but each from different angle.
I placed this video file on V1 and V2, one on top of each other. This way, of course, only V2 can be seen. So, whenever I want V1 to be seen, I adjust the Opacity of V2 down.
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Thanks

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I don't know whether this is a practical/sensible answer that you want to hear but FCP7 has an incredible Multiclip facility which enables you to sync up any number of tracks.
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Message was edited by:
safdsad
Message was edited by:
safdsad

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Dear NI,
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Balaji DP
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Gantner Instruments.
Labview 8.5 Version
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James Mc
========
CLA and cRIO Fanatic
wiresmithtech.com/blog

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Hi everyone,
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Regards,

t00f wrote:
Hi everyone,
I am asking for your help while i am writing an example code. I want to learn how to synchronise two differents objects.Note that you don't "synchronize objects." You synchronize methods or blocks of code on objects (or, more properly I suppose, on their locks). This may seem like a petty distinction, but when you say "synchronize objects," it sounds like you think that you're controlling access to an object. That is not the case. If you need further explanation, let me know.

Linking two video clips together

I cannot find the way, how to link two video clips together so, that when moving one, the linked clip follows.
Is there a way of doing that?
The manual gives nothing with words: "linking video clips".
Message was edited by: TRST

You can't link video clips to each other. You can nest them. Put the two clips in a sequence the way you want them. Put the sequence with the two clips inside your master sequence. They will act as a single clip. That's the only way.

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thanks.

You might want to post your question in the iMovie user forum https://discussions.apple.com/community/ilife/imovie
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The effect you are looking for is 'Picture in Picture'. If you want the gap to be there for the duration of the timeline add some 'black video' - from the Tasks Pane> New Item - on the video track above the main track. Resize / position it to where you wish it to be.
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split video and audio and delete or disable the audio.
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Apply fade in / out to the remaining segments.
[EDIT]
Also check out the 'Presets' in Video Effects. There are a variety of PiP presets that may do what you need.
[/EDIT]
Cheers,
Neale
Insanity is hereditary, you get it from your children

How to synchronise two videos?

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