xuggler
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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