Examples of IMediaReader

com.xuggle.mediatool.IMediaReader
An {@link IMediaCoder} that reads and decodes media from an{@link IContainer}.
An {@link IMediaReader} opens up a media container,reads packets from it, decodes the data, and then dispatches information about the data to any registered {@link IMediaListener} objects. The main method ofinterest is {@link #readPacket()}.

Here's an example of a very simple program that prints out a line when the {@link IMediaReader} decides to open a container.
```
 IMediaDebugListener myListener = new MediaListenerAdapter(){ public void onOpen(IMediaGenerator pipe) { System.out.println("opened: " + ((IMediaReader)pipe).getUrl()); } }; IMediaReader reader = ToolFactory.makeReader("myinputfile.flv"); reader.addListener(myListener); while(reader.readPacket() == null) ; 
```
And here's a slightly more involved example where we read a file and display it on screen in real-time:
```
 IMediaReader reader = ToolFactory.makeReader("myinputfile.flv"); reader.addListener(ToolFactory.makeViewer()); while(reader.readPacket() == null) ; 
```
For examples of this class in action, see the com.xuggle.mediatool.demos package.
@author trebor @author aclarke

Examples of com.xuggle.mediatool.IMediaReader

          catch (BrokenBarrierException e)
          {
            e.printStackTrace();
            return;
          }
          final IMediaReader reader = 
            ToolFactory.makeReader("fixtures/testfile_videoonly_20sec.flv");
          try {
            reader.setBufferedImageTypeToGenerate(BufferedImage.TYPE_3BYTE_BGR);


            log.debug("Created reader: {}", reader);
            if (ADD_VIEWER)
            {
              final IMediaViewer viewer = ToolFactory.makeViewer();
              reader.addListener(viewer);
            }
            while(reader.readPacket() == null)
            {
              log.trace("read packet: {}", numPackets[index]);
              ++numPackets[index];
            }
          } catch (OutOfMemoryError e)
          {
            // This test will cause this error on small JVMs, and that's OK
            // we'll just let this thread abort and keep going.  There are other
            // tests in this suite that look at memory allocation errors.
            numPackets[index]=-1;
          } finally {
            reader.close();
            log.debug("Thread exited; memory exception: {};",
                numPackets[index]==-1 ? "yes" : "no");
          }
          
        }}, "TestThread_"+index);

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Examples of com.xuggle.mediatool.IMediaReader

      final int index = i;
      threads[index] = new Thread(new Runnable()
      {
        public void run()
        {
          final IMediaReader reader = ToolFactory.makeReader(
              "fixtures/testfile_videoonly_20sec.flv");
          try
          {
            reader.setBufferedImageTypeToGenerate(BufferedImage.TYPE_3BYTE_BGR);
            reader.setAddDynamicStreams(false);
            reader.setQueryMetaData(true);
            if (ADD_VIEWER)
            {
              final IMediaViewer viewer = ToolFactory.makeViewer();
              reader.addListener(viewer);
            }


            reader.addListener(ToolFactory.makeWriter(
                MultiThreadedWritingExhaustiveTest.class.getName()
                + "_" + mModel.toString()
                + "_" + mTestNumber + "_" + index + ".flv", reader));
            while (reader.readPacket() == null)
              ++numPackets[index];
          }
          catch (OutOfMemoryError e)
          {
            // This test will cause this error on small JVMs, and that's OK
            // we'll just let this thread abort and keep going. There are other
            // tests in this suite that look at memory allocation errors.
            log.debug("Thread {} exited with memory exception WHICH IS OK: {}",
                index, e);
            numPackets[index] = -1;
          }
          finally
          {
            try {
              reader.close();
            } catch (RuntimeException e) {
              log.debug("Got and ignoring: {}", e);
            }
            log.debug("thread exited with {} packets processed",
                numPackets[index]);

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Examples of com.xuggle.mediatool.IMediaReader

        error.getDescription());
    }      


    // create a media reader to wrap that container


    IMediaReader reader = ToolFactory.makeReader(container);
    
    // Add a media viewer that will display the video, but that exits
    // the JVM when it is destroyed
    reader.addListener(ToolFactory.makeViewer(true, JFrame.EXIT_ON_CLOSE));


    // read out the contents of the media file, note that nothing else
    // happens here.  action happens in the onVideoPicture() method
    // which is called when complete video pictures are extracted from
    // the media source.  Since we're reading from a web cam this
    // loop will never return, but if the window is closed, the JVM is
    // exited.


    while (reader.readPacket() == null)
      do {} while(false);


  }

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Examples of com.xuggle.mediatool.IMediaReader


  public DecodeAndCaptureFrames(String filename)
  {
    // create a media reader for processing video


    IMediaReader reader = ToolFactory.makeReader(filename);
    
    // stipulate that we want BufferedImages created in BGR 24bit color space
    reader.setBufferedImageTypeToGenerate(BufferedImage.TYPE_3BYTE_BGR);


    
    // note that DecodeAndCaptureFrames is derived from
    // MediaReader.ListenerAdapter and thus may be added as a listener
    // to the MediaReader. DecodeAndCaptureFrames implements
    // onVideoPicture().


    reader.addListener(this);


    // read out the contents of the media file, note that nothing else
    // happens here.  action happens in the onVideoPicture() method
    // which is called when complete video pictures are extracted from
    // the media source


    while (reader.readPacket() == null)
      do {} while(false);
  }

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Examples of com.xuggle.mediatool.IMediaReader

      throw new IllegalArgumentException(
          "must pass in a filename as the first argument");


    // create a media reader for processing video


    IMediaReader reader = ToolFactory.makeReader(args[0]);


    // Create a MediaViewer object and tell it to play audio only


    reader.addListener(ToolFactory.makeViewer(IMediaViewer.Mode.AUDIO_ONLY));


    // read out the contents of the media file, and sit back and watch


    while (reader.readPacket() == null)
      do {} while(false);
  }

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Examples of com.xuggle.mediatool.IMediaReader

        error.getDescription());
    }      


    // create a media reader to wrap that container


    IMediaReader reader = ToolFactory.makeReader(container);
    
    // Add a media viewer that will display the video, but that exits
    // the JVM when it is destroyed
    reader.addListener(ToolFactory.makeViewer(true, JFrame.EXIT_ON_CLOSE));


    // read out the contents of the media file, note that nothing else
    // happens here.  action happens in the onVideoPicture() method
    // which is called when complete video pictures are extracted from
    // the media source.  Since we're reading from a web cam this
    // loop will never return, but if the window is closed, the JVM is
    // exited.


    while (reader.readPacket() == null)
      do {} while(false);


  }

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Examples of com.xuggle.mediatool.IMediaReader

    if (args.length <= 0)
      throw new IllegalArgumentException(
        "must pass in a filename as the first argument");
    
    // create a new mr. decode an play audio and video
    IMediaReader reader = ToolFactory.makeReader(args[0]);
    reader.addListener(ToolFactory.makeViewer());
    while(reader.readPacket() == null)
      do {} while(false);
    
  }

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Examples of com.xuggle.mediatool.IMediaReader

    out.printf("transcode %s -> %s\n", sourceUrl, destinationUrl);


    // create the media reader, not that no BufferedImages need to be
    // created because the video is not going to be manipulated


    IMediaReader reader = ToolFactory.makeReader(sourceUrl);


    // add a viewer to the reader, to see progress as the media is
    // transcoded


    reader.addListener(ToolFactory.makeViewer(true));


    // create the media writer
    reader.addListener(ToolFactory.makeWriter(destinationUrl, reader));


    // read packets from the source file, which dispatch events to the
    // writer, this will continue until 


    while (reader.readPacket() == null)
      do {} while(false);
  }

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Examples of com.xuggle.mediatool.IMediaReader


    String filename = args[0];
    
    // create a new reader


    IMediaReader reader = ToolFactory.makeReader(filename);


    //
    // Create a MediaViewer object and tell it to play video only
    //
    reader.addListener(ToolFactory.makeViewer(IMediaViewer.Mode.VIDEO_ONLY));


    // read out the contents of the media file, and sit back and watch


    while (reader.readPacket() == null)
      do {} while(false);
    
  }

View Full Code Here

Examples of com.xuggle.mediatool.IMediaReader

    final int channelCount = 2;
    final int sampleRate = 44100; // Hz


    // create the first media reader


    IMediaReader reader1 = ToolFactory.makeReader(sourceUrl1);


    // create the second media reader


    IMediaReader reader2 = ToolFactory.makeReader(sourceUrl2);


    // create the media concatenator


    MediaConcatenator concatenator = new MediaConcatenator(audioStreamIndex,
      videoStreamIndex);


    // concatenator listens to both readers


    reader1.addListener(concatenator);
    reader2.addListener(concatenator);


    // create the media writer which listens to the concatenator


    IMediaWriter writer = ToolFactory.makeWriter(destinationUrl);
    concatenator.addListener(writer);


    // add the video stream


    writer.addVideoStream(videoStreamIndex, videoStreamId, width, height);


    // add the audio stream


    writer.addAudioStream(audioStreamIndex, audioStreamId, channelCount,
      sampleRate);


    // read packets from the first source file until done


    while (reader1.readPacket() == null)
      ;


    // read packets from the second source file until done


    while (reader2.readPacket() == null)
      ;


    // close the writer


    writer.close();

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