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.bitrate;
  16 import eu.svjatoslav.meviz.encoder.EncodingOptions;
  17
  18 public class AvconvVideo extends AbstractConverter {
  19
  20         private void constructCodecParamsString(final EncodingOptions options,
  21                         final int videoBitrate, final int audioBitrate,
  22                         final StringBuffer codecParams, final String videoCodec,
  23                         final String audioCodec) {
  24
  25                 codecParams.append("-acodec " + audioCodec + " -vcodec " + videoCodec
  26                                 + " ");
  27
  28                 if (videoBitrate != -1)
  29                         codecParams.append("-b " + videoBitrate + "k ");
  30
  31                 if (audioBitrate != -1)
  32                         codecParams.append("-b:a " + audioBitrate + "k ");
  33
  34                 if (options.deinterlace)
  35                         codecParams.append("-filter:v yadif ");
  36         }
  37
  38         @Override
  39         public String getCommand(final File inputFile, final File targetFile,
  40                         final EncodingOptions options) {
  41
  42                 int videoBitrate = -1;
  43                 int audioBitrate = -1;
  44
  45                 switch (options.getVideoBitrate()) {
  46                 case LOW:
  47                         videoBitrate = 1000;
  48                         audioBitrate = 128;
  49                         break;
  50
  51                 case MEDIUM:
  52                         videoBitrate = 4000;
  53                         audioBitrate = 192;
  54                         break;
  55
  56                 case HIGH:
  57                         videoBitrate = 40000;
  58                         audioBitrate = 500;
  59                         break;
  60
  61                 case COPY:
  62                         break;
  63
  64                 default:
  65                         throw new RuntimeException("Video bitrate: " + options.getVideoBitrate()
  66                                         + " is not supported.");
  67                 }
  68
  69                 // convert
  70                 final StringBuffer codecParams = new StringBuffer();
  71
  72                 String videoCodec = "libx264";
  73                 String audioCodec = "libmp3lame";
  74
  75                 if (options.getVideoBitrate() == bitrate.COPY) {
  76                         videoCodec = "copy";
  77                         audioCodec = "copy";
  78                 }
  79
  80                 if (options.forPortablePlayer) {
  81                         videoBitrate = 1000;
  82                         audioBitrate = 128;
  83                         videoCodec = "libxvid";
  84                         codecParams.append("-s 640x480 ");
  85                 }
  86
  87                 constructCodecParamsString(options, videoBitrate, audioBitrate,
  88                                 codecParams, videoCodec, audioCodec);
  89
  90                 return "avconv -i \"" + inputFile.getAbsolutePath() + "\" "
  91                                 + codecParams.toString() + "\"" + targetFile.getAbsolutePath()
  92                                 + "\"";
  93         }
  94
  95         @Override
  96         public List<String> getSourceFileExtensions() {
  97                 return toList("mkv", "mts", "mp4", "avi", "mpg", "mpeg", "vob", "m4v");
  98         }
  99
 100         @Override
 101         public List<String> getTargetFileExtensions() {
 102                 return toList("mkv", "mts", "mp4", "avi", "mpg", "mpeg", "vob", "m4v");
 103         }
 104
 105         @Override
 106         public boolean isTerminalMandatory() {
 107                 return true;
 108         }
 109
 110 }