src/main/java/eu/svjatoslav/meviz/encoder/converters/Mkv2Mp4.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
  14 import eu.svjatoslav.meviz.encoder.EncodingOptions;
  15
  16 public class Mkv2Mp4 implements Converter {
  17
  18         @Override
  19         public String getCommand(final File inputFile, final File targetFile,
  20                         final EncodingOptions options) {
  21
  22                 int videoBitrate;
  23                 int audioBitrate;
  24
  25                 switch (options.videoBitrate) {
  26                 case LOW:
  27                         videoBitrate = 1000;
  28                         audioBitrate = 128;
  29                         break;
  30
  31                 case MEDIUM:
  32                         videoBitrate = 3500;
  33                         audioBitrate = 128;
  34                         break;
  35
  36                 case HIGH:
  37                         videoBitrate = 15000;
  38                         audioBitrate = 500;
  39                         break;
  40
  41                 default:
  42                         throw new RuntimeException("Video bitrate: " + options.videoBitrate
  43                                         + " is not supported.");
  44                 }
  45
  46                 // convert
  47                 final StringBuffer codecParams = new StringBuffer();
  48
  49                 codecParams.append("-acodec libmp3lame -vcodec libx264");
  50
  51                 codecParams.append(" -b " + videoBitrate + "k");
  52                 codecParams.append(" -b:a " + audioBitrate + "k");
  53
  54                 if (options.deinterlace) {
  55                         codecParams.append(" -filter:v yadif");
  56                 }
  57
  58                 return "avconv -i \"" + inputFile.getAbsolutePath() + "\" "
  59                                 + codecParams.toString() + " \"" + targetFile.getAbsolutePath()
  60                                 + "\"";
  61         }
  62
  63         @Override
  64         public String getSourceFileExtension() {
  65                 return "mkv";
  66         }
  67
  68         @Override
  69         public String getTargetFileExtension() {
  70                 return "mp4";
  71         }
  72
  73         @Override
  74         public boolean isTerminalMandatory() {
  75                 return true;
  76         }
  77
  78 }