001/*******************************************************************************
002 * Copyright (c) 2024, 2026, Olivier Ayache.  All rights reserved.
003 *
004 * This file is part of AVPKit.
005 *
006 * AVPKit is free software: you can redistribute it and/or modify
007 * it under the terms of the GNU Lesser General Public License as published by
008 * the Free Software Foundation, either version 3 of the License, or
009 * (at your option) any later version.
010 *
011 * AVPKit is distributed in the hope that it will be useful,
012 * but WITHOUT ANY WARRANTY; without even the implied warranty of
013 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
014 * GNU Lesser General Public License for more details.
015 *
016 * You should have received a copy of the GNU Lesser General Public License
017 * along with AVPKit.  If not, see <http://www.gnu.org/licenses/>.
018 *******************************************************************************/
019
020package com.avpkit.mediatool.demos;
021
022
023import com.avpkit.mediatool.IMediaReader;
024import com.avpkit.mediatool.IMediaViewer;
025import com.avpkit.mediatool.ToolFactory;
026
027/**
028 * Using {@link IMediaReader}, takes a media container, finds the first video
029 * stream, decodes that stream, and plays the video.
030 * 
031 * @author aclarke
032 * @author trebor
033 */
034
035public class DecodeAndPlayVideo
036{
037
038  /**
039   * Takes a media container (file) as the first argument, opens it, opens up a
040   * Swing window and displays video frames with the right
041   * timing.
042   * 
043   * @param args
044   *          Must contain one string which represents a filename
045   */
046
047  public static void main(String[] args)
048  {
049    if (args.length <= 0)
050      throw new IllegalArgumentException(
051          "must pass in a filename as the first argument");
052
053    String filename = args[0];
054    
055    // create a new reader
056
057    IMediaReader reader = ToolFactory.makeReader(filename);
058
059    //
060    // Create a MediaViewer object and tell it to play video only
061    //
062    reader.addListener(ToolFactory.makeViewer(IMediaViewer.Mode.VIDEO_ONLY));
063
064    // read out the contents of the media file, and sit back and watch
065
066    while (reader.readPacket() == null)
067      do {} while(false);
068    
069  }
070}