/*******************************************************************************
* Copyright (c) 2008, 2010 Xuggle Inc. All rights reserved.
*
* This file is part of Xuggle-Xuggler-Main.
*
* Xuggle-Xuggler-Main is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Xuggle-Xuggler-Main is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with Xuggle-Xuggler-Main. If not, see <http://www.gnu.org/licenses/>.
*******************************************************************************/
package com.xuggle.mediatool.demos;
import java.io.File;
import com.xuggle.mediatool.IMediaReader;
import com.xuggle.mediatool.IMediaViewer;
import com.xuggle.mediatool.IMediaWriter;
import com.xuggle.mediatool.ToolFactory;
import static java.lang.System.out;
import static java.lang.System.exit;
/**
* A very simple media transcoder which uses {@link IMediaReader}, {@link
* IMediaWriter} and {@link IMediaViewer}.
*/
public class TranscodeAudioAndVideo
{
/**
* Transcodes a media file into a new media file, guessing parameters
* and codecs
* based on the file names.
* @param args 2 strings; an input file and an output file.
*/
public static void main(String[] args)
{
if (args.length < 2)
{
out.println("To perform a simple media transcode. The destination " +
"format will be guessed from the file extention.");
out.println("");
out.println(" TranscodeAudioAndVideo <source-file> <destination-file>");
out.println("");
out.println(
"The destination type will be guess from the supplied file extsion.");
exit(0);
}
File source = new File(args[0]);
if (!source.exists())
{
out.println("Source file does not exist: " + source);
exit(0);
}
transcode(args[0], args[1]);
}
/**
* Transcode a source url to a destination url. Really. That's
* all this does.
*/
public static void transcode(String sourceUrl, String destinationUrl)
{
out.printf("transcode %s -> %s\n", sourceUrl, destinationUrl);
// create the media reader, not that no BufferedImages need to be
// created because the video is not going to be manipulated
IMediaReader reader = ToolFactory.makeReader(sourceUrl);
// add a viewer to the reader, to see progress as the media is
// transcoded
reader.addListener(ToolFactory.makeViewer(true));
// create the media writer
reader.addListener(ToolFactory.makeWriter(destinationUrl, reader));
// read packets from the source file, which dispatch events to the
// writer, this will continue until
while (reader.readPacket() == null)
do {} while(false);
}
}