Transcode mp4 to flv using Xuggler

Ilias TsagklisNovember 11th, 2012Last Updated: May 9th, 2013

0 184 1 minute read

This is an example that demonstrates how to transcode mp4 to flv using Xuggler. This is a very easy and common transcoding.

To do that, one should follow these basic steps:

Create a IMediaReader to read the video file.
Create an IMediaWriter using ToolFactory.makeWriter.
Add a writer to the reader, to create the output file
Create a IMediaViewer with stats enabled
Add a viewer to the reader, to see the decoded media
Read and decode packets from the source file and dispatch decoded audio and video to the writer .

Let’s see the code:

package com.javacodegeeks.xuggler;
 
import com.xuggle.mediatool.IMediaReader;
import com.xuggle.mediatool.IMediaViewer;
import com.xuggle.mediatool.IMediaWriter;
import com.xuggle.mediatool.ToolFactory;
 
public class TranscodingExample {
 
    private static final String inputFilename = "c:/myvideo.mp4";
    private static final String outputFilename = "c:/myvideo.flv";
 
    public static void main(String[] args) {
 
  // create a media reader
 
  IMediaReader mediaReader = 
 
   ToolFactory.makeReader(inputFilename);
 
  // create a media writer
 
  IMediaWriter mediaWriter = 
 
   ToolFactory.makeWriter(outputFilename, mediaReader);
 
  // add a writer to the reader, to create the output file
 
  mediaReader.addListener(mediaWriter);
 
  // create a media viewer with stats enabled
 
  IMediaViewer mediaViewer = ToolFactory.makeViewer(true);
 
  // add a viewer to the reader, to see the decoded media
 
  mediaReader.addListener(mediaViewer);
 
  // read and decode packets from the source file and
 
  // and dispatch decoded audio and video to the writer
 
  while (mediaReader.readPacket() == null) ;
 
    }
 
}