src/main/java/eu/svjatoslav/meviz/encoder/converters/AvconvVideo.java

   1 /*
   2  * Meviz - Various tools collection to work with multimedia.
   3  * Copyright (C) 2012, Svjatoslav Agejenko, svjatoslav@svjatoslav.eu
   4  *
   5  * This program is free software; you can redistribute it and/or
   6  * modify it under the terms of version 2 of the GNU General Public License
   7  * as published by the Free Software Foundation.
   8  */
   9
  10 package eu.svjatoslav.meviz.encoder.converters;
  11
  12 import java.io.File;
  13 import java.util.List;
  14
  15 import eu.svjatoslav.meviz.encoder.BitrateParameter;
  16 import eu.svjatoslav.meviz.encoder.BitrateParameter.bitrate;
  17 import eu.svjatoslav.meviz.encoder.EncodingOptions;
  18
  19 public class AvconvVideo extends AbstractConverter {
  20
  21         private void constructCodecParamsString(final EncodingOptions options,
  22                         final int videoBitrate, final int audioBitrate,
  23                         final StringBuffer codecParams, final String videoCodec,
  24                         final String audioCodec) {
  25
  26                 if (audioCodec == null)
  27                         codecParams.append("-an ");
  28                 else
  29                         codecParams.append("-acodec " + audioCodec + " ");
  30
  31                 codecParams.append("-vcodec " + videoCodec + " ");
  32
  33                 if (videoBitrate != -1)
  34                         codecParams.append("-b " + videoBitrate + "k ");
  35
  36                 if (audioBitrate != -1)
  37                         codecParams.append("-b:a " + audioBitrate + "k ");
  38
  39                 if (options.deinterlace)
  40                         codecParams.append("-filter:v yadif ");
  41         }
  42
  43         private int getAudioBitrateValue(final BitrateParameter.bitrate bitRate) {
  44                 switch (bitRate) {
  45                 case LOW:
  46                         return 128;
  47
  48                 case MEDIUM:
  49                         return 160;
  50
  51                 case HIGH:
  52                         return 320;
  53
  54                 case COPY:
  55                         return -1;
  56
  57                 case NONE:
  58                         return -1;
  59
  60                 default:
  61                         throw new RuntimeException("Audio bitrate: " + bitRate
  62                                         + " is not supported.");
  63                 }
  64         }
  65
  66         @Override
  67         public String getCommand(final File inputFile, final File targetFile,
  68                         final EncodingOptions options) {
  69
  70                 int videoBitrate = getVideoBitrateValue(options.getVideoBitrate());
  71                 int audioBitrate = getAudioBitrateValue(options.getAudioBitrate());
  72
  73                 // convert
  74                 final StringBuffer codecParams = new StringBuffer();
  75
  76                 String videoCodec = "libx264";
  77                 String audioCodec = "libmp3lame";
  78
  79                 if (options.getVideoBitrate() == bitrate.COPY)
  80                         videoCodec = "copy";
  81
  82                 if (options.getAudioBitrate() == bitrate.COPY)
  83                         audioCodec = "copy";
  84
  85                 if (options.getAudioBitrate() == bitrate.NONE)
  86                         audioCodec = null;
  87
  88                 if (options.forPortablePlayer) {
  89                         videoBitrate = 1000;
  90                         audioBitrate = 128;
  91                         videoCodec = "libxvid";
  92                         codecParams.append("-s 640x480 ");
  93                 }
  94
  95                 constructCodecParamsString(options, videoBitrate, audioBitrate,
  96                                 codecParams, videoCodec, audioCodec);
  97
  98                 return "avconv -i \"" + inputFile.getAbsolutePath() + "\" "
  99                                 + codecParams.toString() + "\"" + targetFile.getAbsolutePath()
 100                                 + "\"";
 101         }
 102
 103         @Override
 104         public List<String> getSourceFileExtensions() {
 105                 return toList("mkv", "mts", "mp4", "avi", "mpg", "mpeg", "vob", "m4v");
 106         }
 107
 108         @Override
 109         public List<String> getTargetFileExtensions() {
 110                 return toList("mkv", "mts", "mp4", "avi", "mpg", "mpeg", "vob", "m4v");
 111         }
 112
 113         private int getVideoBitrateValue(final BitrateParameter.bitrate bitRate) {
 114                 switch (bitRate) {
 115                 case LOW:
 116                         return 1000;
 117
 118                 case MEDIUM:
 119                         return 4000;
 120
 121                 case HIGH:
 122                         return 40000;
 123
 124                 case COPY:
 125                         return -1;
 126
 127                 default:
 128                         throw new RuntimeException("Video bitrate: " + bitRate
 129                                         + " is not supported.");
 130                 }
 131         }
 132
 133         @Override
 134         public boolean isTerminalMandatory() {
 135                 return true;
 136         }
 137
 138 }