Examples of MediaWriter

com.xuggle.mediatool.MediaWriter
An {@link IMediaCoder} that encodes and decodes media to containers.
The MediaWriter class is a simplified interface to the Xuggler library that opens up a media container, and allows media data to be written into it.

The {@link MediaWriter} class implements {@link IMediaListener}, and so it can be attached to any {@link IMediaGenerator} that generates rawmedia events (e.g. {@link MediaReader}).

Calls to {@link #onAudioSamples}, and {@link #onVideoPicture} encodemedia into packets and write those encoded packets.

If you are generating video from Java {@link BufferedImage} but youdon't have an {@link IVideoPicture} object handy, don't sweat. Youcan use {@link #pushImage(BufferedImage,int,long)}, and {@link MediaWriter}will convert your {@link BufferedImage} into the right type.

Examples of com.xuggle.mediatool.MediaWriter

    int sampleRate = 44100;
    int totalSeconds = 5;


    // create the writer


    IMediaWriter writer = new MediaWriter(file.toString());


    // add the audio stream


    ICodec codec = ICodec.findEncodingCodec(ICodec.ID.CODEC_ID_MP3);
    IContainer container = writer.getContainer();
    int streamIndex = writer.addAudioStream(
        audioStreamIndex, audioStreamId, codec, channelCount, sampleRate); 
    IStream stream = container.getStream(streamIndex);
    int sampleCount = stream.getStreamCoder().getDefaultAudioFrameSize();


    // create a place for audio samples


    IAudioSamples samples = IAudioSamples.make(sampleCount, channelCount);


    // create the tone generator


    TestAudioSamplesGenerator generator = new TestAudioSamplesGenerator();
    generator.prepare(channelCount, sampleRate);


    // let's make some noise!


    int totalSamples = 0;
    short[] javaSamples = new short[sampleCount*channelCount];
    while (totalSamples < sampleRate * totalSeconds)
    {
      generator.fillNextSamples(samples, sampleCount);
      samples.get(0, javaSamples, 0, javaSamples.length);
      writer.encodeAudio(streamIndex, javaSamples);
      totalSamples += samples.getNumSamples();
    }


    // close the writer


    writer.close();


    assert (file.exists());
    assertEquals(file.length(), 40365, 100);
    log.debug("manually check: " + file);
  }

View Full Code Here

Examples of com.xuggle.mediatool.MediaWriter

    int channelCount = 2;
    int sampleRate = 44100;


    // create the writer
    
    MediaWriter writer = new MediaWriter(file.toString());
    writer.addListener(new MediaViewer(mViewerMode, true));


    // add the video stream


    ICodec videoCodec = ICodec.findEncodingCodec(ICodec.ID.CODEC_ID_FLV1);
    writer.addVideoStream(videoStreamIndex, videoStreamId, videoCodec, w, h);


    // add the audio stream


    ICodec audioCodec = ICodec.findEncodingCodec(ICodec.ID.CODEC_ID_MP3);
    IContainer container = writer.getContainer();
    IStream stream = container.getStream(writer.addAudioStream(audioStreamIndex, audioStreamId,
      audioCodec, channelCount, sampleRate));
    int sampleCount = stream.getStreamCoder().getDefaultAudioFrameSize();


    // create a place for audio samples and video pictures


    IAudioSamples samples = IAudioSamples.make(sampleCount, channelCount);
    IVideoPicture picture = IVideoPicture.make(IPixelFormat.Type.YUV420P, w, h);


    // create the tone generator


    TestAudioSamplesGenerator generator = new TestAudioSamplesGenerator();
    generator.prepare(channelCount, sampleRate);


    // make some media


    long videoTime = 0;
    long audioTime = 0;
    long totalSamples = 0;
    long totalSeconds = 6;


    // the goal is to get 6 seconds of audio and video, in this case
    // driven by audio, but kicking out a video frame at about the right
    // time


    while (totalSamples < sampleRate * totalSeconds)
    {
      // comput the time based on the number of samples


      audioTime = (totalSamples * 1000 * 1000) / sampleRate;


      // if the audioTime i>= videoTime then it's time for a video frame


      if (audioTime >= videoTime)
      {
        BufferedImage image = new BufferedImage(w, h, 
          BufferedImage.TYPE_3BYTE_BGR);
      
        Graphics2D g = image.createGraphics();
        g.setRenderingHint(
          RenderingHints.KEY_ANTIALIASING,
          RenderingHints.VALUE_ANTIALIAS_ON);


        double theta = videoTime / 1000000d;
        g.setColor(Color.RED);
        g.rotate(theta, w / 2, h / 2);
        
        g.fillRect(50, 50, 100, 100);
        
        picture.setPts(videoTime);
        writer.encodeVideo(videoStreamIndex, image, videoTime,
            Global.DEFAULT_TIME_UNIT);
      
        videoTime += deltaTime;
      }


      // generate audio
      
      generator.fillNextSamples(samples, sampleCount);
      writer.encodeAudio(audioStreamIndex, samples);
      totalSamples += samples.getNumSamples();
    }


    // close the writer


    writer.close();


    assert(file.exists());
    assertEquals(file.length(), 521938, 120000);
    log.debug("manually check: " + file);
  }

View Full Code Here

Examples of com.xuggle.mediatool.MediaWriter

    int channelCount = 2;
    int sampleRate = 44100;


    // create the writer
    
    IMediaWriter writer = new MediaWriter(file.toString());


    // add the audio stream


    ICodec codec = ICodec.findEncodingCodec(ICodec.ID.CODEC_ID_MP3);
    IContainer container = writer.getContainer();
    IStream stream = container.getStream(
        writer.addAudioStream(audioStreamIndex, audioStreamId,
            codec, channelCount, sampleRate));
    int sampleCount = stream.getStreamCoder().getDefaultAudioFrameSize();


    // create a place for audio samples


    IAudioSamples samples = IAudioSamples.make(sampleCount, channelCount);


    // create the tone generator


    TestAudioSamplesGenerator generator = new TestAudioSamplesGenerator();
    generator.prepare(channelCount, sampleRate);


    // write some data, so that the media header will be written


    generator.fillNextSamples(samples, sampleCount);
    writer.encodeAudio(audioStreamIndex, samples);


    // re-delete the output file so no broke media files persist after
    // the test
    
    file.delete();


    // now write some data on a different index


    generator.fillNextSamples(samples, sampleCount);
    writer.encodeAudio(audioStreamIndex+1, samples);


    // should no get here


    assert(false);
  }

View Full Code Here

Examples of com.xuggle.mediatool.MediaWriter

    int channelCount = 2;
    int sampleRate = 44100;


    // create the writer
    
    IMediaWriter writer = new MediaWriter(file.toString());
    
    // mask late stream exceptoins


    writer.setMaskLateStreamExceptions(true);


    // add the audio stream


    ICodec codec = ICodec.findEncodingCodec(ICodec.ID.CODEC_ID_MP3);
    IContainer container = writer.getContainer();
    IStream stream = container.getStream(
        writer.addAudioStream(audioStreamIndex, audioStreamId,
            codec, channelCount, sampleRate));
    int sampleCount = stream.getStreamCoder().getDefaultAudioFrameSize();


    // create a place for audio samples


    IAudioSamples samples = IAudioSamples.make(sampleCount, channelCount);


    // create the tone generator


    TestAudioSamplesGenerator generator = new TestAudioSamplesGenerator();
    generator.prepare(channelCount, sampleRate);


    // write some data, so that the media header will be written


    generator.fillNextSamples(samples, sampleCount);
    writer.encodeAudio(audioStreamIndex, samples);


    // now write some data on a different index


    generator.fillNextSamples(samples, sampleCount);
    writer.encodeAudio(audioStreamIndex+1, samples);


    // delete the output file so no broke media files persist after the
    // test
    
    file.delete();

View Full Code Here

Examples of com.xuggle.mediatool.MediaWriter

    assert(inputFile.exists());
    outputFile.delete();
    assert(!outputFile.exists());


    MediaReader reader = new MediaReader(INPUT_FILENAME);
    MediaWriter writer = new MediaWriter(OUTPUT_FILENAME, reader);
    reader.addListener(writer);


    writer.addListener(new MediaViewer(mViewerMode, true, 0));


    MediaDebugListener readerCounter = new MediaDebugListener(URL, META_DATA);
    MediaDebugListener writerCounter = new MediaDebugListener(EVENT, META_DATA);


    reader.addListener(readerCounter);
    writer.addListener(writerCounter);


    
    IError rv;
    while ((rv = reader.readPacket()) == null)
      ;

View Full Code Here

Examples of com.xuggle.mediatool.MediaWriter

    // construct a writer which does not get called directly by the
    // MediaReader, and thus many things need to be handled manually


    if (mTestContainer)
    {
      final MediaWriter writer = new MediaWriter(mDestination, 
        reader.getContainer());
      writer.setMaskLateStreamExceptions(false);
      writer.addListener(new MediaViewer(mViewerMode, true));


      writer.addListener(new MediaDebugListener(OPEN, CLOSE));


      reader.addListener(new MediaListenerAdapter()
        {
          public void onVideoPicture(IVideoPictureEvent event)
          {
            writer.onVideoPicture(event);
          }
          
          /** {@inheritDoc} */
          
          public void onAudioSamples(IAudioSamplesEvent event)
          {
            writer.onAudioSamples(event);
          }
        });


      // transcode


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


      // close the container
      
      writer.close();
    }


    // construct a writer give a reader, the easy simple case


    else
    {
      // construct the writer, no need to keep a reference to the
      // writer, it's maintained in the reader


      MediaWriter writer = new MediaWriter(mDestination, reader);
      reader.addListener(writer);
      writer.setMaskLateStreamExceptions(false);
      writer.addListener(new MediaViewer(mViewerMode, true));


      writer.addListener(new MediaDebugListener(EVENT, META_DATA));


      // transcode


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

View Full Code Here

Examples of com.xuggle.mediatool.MediaWriter

  {
    File file = new File(PREFIX + "should-not-be-created.flv");
    file.delete();
    assert(!file.exists());
    mReader.setAddDynamicStreams(true);
    mReader.addListener(new MediaWriter(file.toString(), mReader));
    assert(!file.exists());
  }

View Full Code Here

Examples of com.xuggle.mediatool.MediaWriter

    public void improperUrlTest()
  {
    File file = new File("/tmp/foo/bar/baz/should-not-be-created.flv");
    file.delete();
    assert(!file.exists());
    mReader.addListener(new MediaWriter(file.toString(), mReader));
    
    mReader.readPacket();
    assert(!file.exists());
  }

View Full Code Here

Examples of com.xuggle.mediatool.MediaWriter


  @Test(expected=IllegalArgumentException.class)
    public void improperInputContainerTypeTest()
  {
    File file = new File(PREFIX + "should-not-be-created.flv");
    MediaWriter writer = new MediaWriter(file.toString(), mReader);
    mReader.addListener(writer);
    mReader.readPacket();
    file.delete();
    new MediaWriter(file.toString(), writer.getContainer());
  }

View Full Code Here

Examples of com.xuggle.mediatool.MediaWriter

        IVideoResampler.Feature.FEATURE_COLORSPACECONVERSION))
      return;
    File file = new File(PREFIX + "transcode-to-flv.flv");
    file.delete();
    assert(!file.exists());
    MediaWriter writer = new MediaWriter(file.toString(), mReader);
    writer.addListener(new MediaViewer(mViewerMode, true));
    mReader.addListener(writer);
    while (mReader.readPacket() == null)
      ;
    assert(file.exists());
    assertEquals(1111676, file.length(), 300);

View Full Code Here

0 1 2

TOP

All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.