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About Ilias Tsagklis

Ilias Tsagklis
Ilias is a software developer turned online entrepreneur. He is co-founder and Executive Editor at Java Code Geeks.

Inspect a video file with Xuggler

This is an example that shows how to inspect a video file with Xuggler in order to obtain useful information about it.

These are the basic steps you need to take:

  • Create a Xuggler IContainer object.
  • Open up the container using container.open(filename, IContainer.Type.READ, null).
  • Query how many streams the call to open found using container.getNumStreams().
  • Query for the total duration using container.getDuration()
  • Query for the bit rate using container.getBitRate().
  • Iterate through the streams to print their meta data.
  • Get the pre-configured decoder that can decode this stream using IStreamCoder to obtain several information.

Here is the code:

package com.javacodegeeks.xuggler.intro;

import com.xuggle.xuggler.ICodec;
import com.xuggle.xuggler.IContainer;
import com.xuggle.xuggler.IStream;
import com.xuggle.xuggler.IStreamCoder;

public class VideoInfo {

    private static final String filename = "c:/myvideo.mp4";

    public static void main(String[] args) {

  // first we create a Xuggler container object

  IContainer container = IContainer.make();

  // we attempt to open up the container

  int result = container.open(filename, IContainer.Type.READ, null);

  // check if the operation was successful

  if (result<0)

throw new RuntimeException("Failed to open media file");

  // query how many streams the call to open found

  int numStreams = container.getNumStreams();

  // query for the total duration

  long duration = container.getDuration();

  // query for the file size

  long fileSize = container.getFileSize();

  // query for the bit rate

  long bitRate = container.getBitRate();

  System.out.println("Number of streams: " + numStreams);

  System.out.println("Duration (ms): " + duration);

  System.out.println("File Size (bytes): " + fileSize);

  System.out.println("Bit Rate: " + bitRate);

  // 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();

System.out.println("*** Start of Stream Info ***");

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());

System.out.printf("start time: %s; ", container.getStartTime());

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());

System.out.println();

if (coder.getCodecType() == ICodec.Type.CODEC_TYPE_AUDIO) {

    System.out.printf("sample rate: %d; ", coder.getSampleRate());

    System.out.printf("channels: %d; ", coder.getChannels());

    System.out.printf("format: %s", coder.getSampleFormat());

} 

else if (coder.getCodecType() == ICodec.Type.CODEC_TYPE_VIDEO) {

    System.out.printf("width: %d; ", coder.getWidth());

    System.out.printf("height: %d; ", coder.getHeight());

    System.out.printf("format: %s; ", coder.getPixelType());

    System.out.printf("frame-rate: %5.2f; ", coder.getFrameRate().getDouble());

}

System.out.println();

System.out.println("*** End of Stream Info ***");

  }

    }

}

This was an example on how to inspect a video file with Xuggler.

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