Examples of com.xuggle.xuggler.IStream

com.xuggle.xuggler.IStream
Represents a stream of similar data (eg video) in a {@link IContainer}.
Streams are really virtual concepts; {@link IContainer}s really just contain a bunch of {@link IPacket}s. But each {@link IPacket} usually has a stream id associated with it, and all {@link IPacket}s with that stream id represent the same type of (usually time-based) data. For example in many FLV video files, there is a stream with id "0" that contains all video data, and a stream with id "1" that contains all audio data.
You use an {@link IStream} object to get properly configured {@link IStreamCoder} for decoding, and to tell {@link IStreamCoder}s how to encode {@link IPacket}s when decoding.

  {
    // verify parameters
    if (null == samples)
      throw new IllegalArgumentException("NULL input samples");


    IStream stream = getStream(streamIndex);
    if (null == stream)
      return;


    IStreamCoder coder = stream.getStreamCoder();
    try
    {
      if (IAudioSamples.Format.FMT_S16 != coder.getSampleFormat())
      {
        throw new IllegalArgumentException("stream[" + streamIndex

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    // if not found create one


    if (videoConverter == null)
    {
      IStream stream = mStreams.get(streamIndex);
      IStreamCoder coder = stream.getStreamCoder();
      videoConverter = ConverterFactory.createConverter(
        ConverterFactory.findDescriptor(image),
        coder.getPixelType(),
        coder.getWidth(), coder.getHeight(),
        image.getWidth(), image.getHeight());

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      super.onWriteHeader(new WriteHeaderEvent(this));
    }
    
    // establish the coder for the output stream index


    IStream stream = mStreams.get(getOutputStreamIndex(inputStreamIndex));
    if (null == stream)
      throw new RuntimeException("invalid input stream index (no stream): "
         + inputStreamIndex);
    IStreamCoder coder = stream.getStreamCoder();
    if (null == coder)
      throw new RuntimeException("invalid input stream index (no coder): "
        + inputStreamIndex);
    
    // return the coder

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  private boolean addStreamFromContainer(int inputStreamIndex)
  {
    // get the input stream


    IStream inputStream = mInputContainer.getStream(inputStreamIndex);
    IStreamCoder inputCoder = inputStream.getStreamCoder();
    ICodec.Type inputType = inputCoder.getCodecType();
    ICodec.ID inputID = inputCoder.getCodecID();
    
    // if this stream is not a supported type, indicate failure


    if (!isSupportedCodecType(inputType))
      return false;


    IContainerFormat format = getContainer().getContainerFormat();
    
    switch(inputType)
    {
      case CODEC_TYPE_AUDIO:
        addAudioStream(inputStream.getIndex(),
            inputStream.getId(),
            format.establishOutputCodecId(inputID),
            inputCoder.getChannels(),
            inputCoder.getSampleRate());
        break;
      case CODEC_TYPE_VIDEO:
        addVideoStream(inputStream.getIndex(),
            inputStream.getId(),
            format.establishOutputCodecId(inputID),
            inputCoder.getFrameRate(),
            inputCoder.getWidth(),
            inputCoder.getHeight());
        break;

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    // and iterate through the streams to print their meta data
    for(int i = 0; i < numStreams; i++)
    {
      // Find the stream object
      IStream stream = container.getStream(i);
      // Get the pre-configured decoder that can decode this stream;
      IStreamCoder coder = stream.getStreamCoder();
      
      // and now print out the meta data.
      System.out.printf("stream %d: ",    i);
      System.out.printf("type: %s; ",     coder.getCodecType());
      System.out.printf("codec: %s; ",    coder.getCodecID());
      System.out.printf("duration: %s; ", stream.getDuration() == Global.NO_PTS ? "unknown" : "" + stream.getDuration());
      System.out.printf("start time: %s; ", container.getStartTime() == Global.NO_PTS ? "unknown" : "" + stream.getStartTime());
      System.out.printf("language: %s; ", stream.getLanguage() == null ? "unknown" : stream.getLanguage());
      System.out.printf("timebase: %d/%d; ", stream.getTimeBase().getNumerator(), stream.getTimeBase().getDenominator());
      System.out.printf("coder tb: %d/%d; ", coder.getTimeBase().getNumerator(), coder.getTimeBase().getDenominator());
      
      if (coder.getCodecType() == ICodec.Type.CODEC_TYPE_AUDIO)
      {
        System.out.printf("sample rate: %d; ", coder.getSampleRate());

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com.xuggle.xuggler.demos.DecodeAndCaptureFrames

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