/*******************************************************************************
 * 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.xuggler.demos;

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

/**
 * Opens up a media container, and prints out a summary of the contents.
 * 
 * If you pass -Dxuggle.options we'll also tell you what every
 * configurable option on the container and streams is set to.
 * 
 * @author aclarke
 *
 */
public class GetContainerInfo
{
  /**
   * Takes a media container (file) as the first argument, opens it, and tells you what's inside the container.
   * @param args Must contain one string which represents a filename
   */
  public static void main(String[] args)
  {
    // If the user passes -Dxuggle.options, then we print
    // out all possible options as well.
    String optionString = System.getProperty("xuggle.options");
    if (optionString != null)
    {
      Configuration.printHelp(System.out);
    }

    if (args.length <= 0)
      throw new IllegalArgumentException("must pass in a filename as the first argument");
    
    String filename = args[0];
    // Create a Xuggler container object
    IContainer container = IContainer.make();
    
    // Open up the container
    if (container.open(filename, IContainer.Type.READ, null) < 0)
      throw new IllegalArgumentException("could not open file: " + filename);
    
    // query how many streams the call to open found
    int numStreams = container.getNumStreams();
    System.out.printf("file \"%s\": %d stream%s; ",
        filename,
        numStreams,
        numStreams == 1 ? "" : "s");
    System.out.printf("duration (ms): %s; ", container.getDuration() == Global.NO_PTS ? "unknown" : "" + container.getDuration()/1000);
    System.out.printf("start time (ms): %s; ", container.getStartTime() == Global.NO_PTS ? "unknown" : "" + container.getStartTime()/1000);
    System.out.printf("file size (bytes): %d; ", container.getFileSize());
    System.out.printf("bit rate: %d; ", container.getBitRate());
    System.out.printf("\n");

    // and 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();
      
      // and now print out the meta data.
      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() == Global.NO_PTS ? "unknown" : "" + stream.getDuration());
      System.out.printf("start time: %s; ", container.getStartTime() == Global.NO_PTS ? "unknown" : "" + stream.getStartTime());
      System.out.printf("language: %s; ", stream.getLanguage() == null ? "unknown" : stream.getLanguage());
      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());
      
      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.printf("\n");
    }
    
  }
}