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 String constructCodecParamsString(final EncodingOptions options,
  22                         final int videoBitrate, final int audioBitrate,
  23                         final String videoCodec, final String audioCodec) {
  24
  25                 StringBuffer codecParams = new StringBuffer();
  26
  27                 if (audioCodec == null)
  28                         codecParams.append("-an ");
  29                 else
  30                         codecParams.append("-acodec " + audioCodec + " ");
  31
  32                 codecParams.append("-vcodec " + videoCodec + " ");
  33
  34                 if (videoBitrate != -1)
  35                         codecParams.append("-b " + videoBitrate + "k ");
  36
  37                 if (audioBitrate != -1)
  38                         codecParams.append("-b:a " + audioBitrate + "k ");
  39
  40                 if (options.deinterlace)
  41                         codecParams.append("-filter:v yadif ");
  42
  43                 return codecParams.toString();
  44         }
  45
  46         private int getAudioBitrateValue(final BitrateParameter.bitrate bitRate) {
  47                 switch (bitRate) {
  48                 case LOW:
  49                         return 128;
  50
  51                 case MEDIUM:
  52                         return 160;
  53
  54                 case HIGH:
  55                         return 320;
  56
  57                 case COPY:
  58                         return -1;
  59
  60                 case NONE:
  61                         return -1;
  62
  63                 default:
  64                         throw new RuntimeException("Audio bitrate: " + bitRate
  65                                         + " is not supported.");
  66                 }
  67         }
  68
  69         @Override
  70         public String getCommand(final File inputFile, final File targetFile,
  71                         final EncodingOptions options, String targetFormat) {
  72
  73                 int videoBitrate = getVideoBitrateValue(options.getVideoBitrate());
  74                 int audioBitrate = getAudioBitrateValue(options.getAudioBitrate());
  75
  76                 // convert
  77                 final StringBuffer codecParams = new StringBuffer();
  78
  79                 String videoCodec = "libx264";
  80                 String audioCodec = "libmp3lame";
  81
  82                 if (targetFormat.equals("webm")) {
  83                         videoCodec = "vp9";
  84                         audioCodec = "opus";
  85                 }
  86
  87                 if (options.getVideoBitrate() == bitrate.COPY)
  88                         videoCodec = "copy";
  89
  90                 if (options.getAudioBitrate() == bitrate.COPY)
  91                         audioCodec = "copy";
  92
  93                 if (options.getAudioBitrate() == bitrate.NONE)
  94                         audioCodec = null;
  95
  96                 if (options.forPortablePlayer) {
  97                         videoBitrate = 1000;
  98                         audioBitrate = 128;
  99                         videoCodec = "libxvid";
 100                         codecParams.append("-s 640x480 ");
 101                 }
 102
 103                 codecParams.append(constructCodecParamsString(options, videoBitrate,
 104                                 audioBitrate, videoCodec, audioCodec));
 105
 106                 return "avconv -i \"" + inputFile.getAbsolutePath() + "\" "
 107                                 + codecParams.toString() + "\"" + targetFile.getAbsolutePath()
 108                                 + "\"";
 109         }
 110
 111         @Override
 112         public List<String> getSourceFileExtensions() {
 113                 return toList("mkv", "mts", "mp4", "avi", "mpg", "mpeg", "vob", "m4v",
 114                                 "webm");
 115         }
 116
 117         @Override
 118         public List<String> getTargetFileExtensions() {
 119                 return toList("mkv", "mts", "mp4", "avi", "mpg", "mpeg", "vob", "m4v",
 120                                 "webm");
 121         }
 122
 123         private int getVideoBitrateValue(final BitrateParameter.bitrate bitRate) {
 124                 switch (bitRate) {
 125                 case LOW:
 126                         return 1000;
 127
 128                 case MEDIUM:
 129                         return 4000;
 130
 131                 case HIGH:
 132                         return 40000;
 133
 134                 case COPY:
 135                         return -1;
 136
 137                 default:
 138                         throw new RuntimeException("Video bitrate: " + bitRate
 139                                         + " is not supported.");
 140                 }
 141         }
 142
 143         @Override
 144         public boolean isTerminalMandatory() {
 145                 return true;
 146         }
 147
 148 }