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.EncodingOptions;
  16
  17 public class AvconvVideo extends AbstractConverter {
  18
  19         @Override
  20         public String getCommand(final File inputFile, final File targetFile,
  21                         final EncodingOptions options) {
  22
  23                 int videoBitrate;
  24                 int audioBitrate;
  25
  26                 switch (options.videoBitrate) {
  27                 case LOW:
  28                         videoBitrate = 1000;
  29                         audioBitrate = 128;
  30                         break;
  31
  32                 case MEDIUM:
  33                         videoBitrate = 3500;
  34                         audioBitrate = 128;
  35                         break;
  36
  37                 case HIGH:
  38                         videoBitrate = 40000;
  39                         audioBitrate = 500;
  40                         break;
  41
  42                 default:
  43                         throw new RuntimeException("Video bitrate: " + options.videoBitrate
  44                                         + " is not supported.");
  45                 }
  46
  47                 // convert
  48                 final StringBuffer codecParams = new StringBuffer();
  49
  50                 codecParams.append("-acodec libmp3lame -vcodec libx264");
  51
  52                 codecParams.append(" -b " + videoBitrate + "k");
  53                 codecParams.append(" -b:a " + audioBitrate + "k");
  54
  55                 if (options.deinterlace)
  56                         codecParams.append(" -filter:v yadif");
  57
  58                 return "avconv -i \"" + inputFile.getAbsolutePath() + "\" "
  59                                 + codecParams.toString() + " \"" + targetFile.getAbsolutePath()
  60                                 + "\"";
  61         }
  62
  63         @Override
  64         public List<String> getSourceFileExtensions() {
  65                 return toList("mkv", "mts");
  66         }
  67
  68         @Override
  69         public List<String> getTargetFileExtensions() {
  70                 return toList("mp4");
  71         }
  72
  73         @Override
  74         public boolean isTerminalMandatory() {
  75                 return true;
  76         }
  77
  78 }