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                 codecParams.append("-acodec " + audioCodec + " -vcodec " + videoCodec
  27                                 + " ");
  28
  29                 if (videoBitrate != -1)
  30                         codecParams.append("-b " + videoBitrate + "k ");
  31
  32                 if (audioBitrate != -1)
  33                         codecParams.append("-b:a " + audioBitrate + "k ");
  34
  35                 if (options.deinterlace)
  36                         codecParams.append("-filter:v yadif ");
  37         }
  38
  39         private int getAudioBitrateValue(final BitrateParameter.bitrate bitRate) {
  40                 switch (bitRate) {
  41                 case LOW:
  42                         return 128;
  43
  44                 case MEDIUM:
  45                         return 160;
  46
  47                 case HIGH:
  48                         return 320;
  49
  50                 case COPY:
  51                         return -1;
  52
  53                 default:
  54                         throw new RuntimeException("Audio bitrate: " + bitRate
  55                                         + " is not supported.");
  56                 }
  57         }
  58
  59         @Override
  60         public String getCommand(final File inputFile, final File targetFile,
  61                         final EncodingOptions options) {
  62
  63                 int videoBitrate = getVideoBitrateValue(options.getVideoBitrate());
  64                 int audioBitrate = getAudioBitrateValue(options.getAudioBitrate());
  65
  66                 // convert
  67                 final StringBuffer codecParams = new StringBuffer();
  68
  69                 String videoCodec = "libx264";
  70                 String audioCodec = "libmp3lame";
  71
  72                 if (options.getVideoBitrate() == bitrate.COPY)
  73                         videoCodec = "copy";
  74
  75                 if (options.getAudioBitrate() == bitrate.COPY)
  76                         audioCodec = "copy";
  77
  78                 if (options.forPortablePlayer) {
  79                         videoBitrate = 1000;
  80                         audioBitrate = 128;
  81                         videoCodec = "libxvid";
  82                         codecParams.append("-s 640x480 ");
  83                 }
  84
  85                 constructCodecParamsString(options, videoBitrate, audioBitrate,
  86                                 codecParams, videoCodec, audioCodec);
  87
  88                 return "avconv -i \"" + inputFile.getAbsolutePath() + "\" "
  89                                 + codecParams.toString() + "\"" + targetFile.getAbsolutePath()
  90                                 + "\"";
  91         }
  92
  93         @Override
  94         public List<String> getSourceFileExtensions() {
  95                 return toList("mkv", "mts", "mp4", "avi", "mpg", "mpeg", "vob", "m4v");
  96         }
  97
  98         @Override
  99         public List<String> getTargetFileExtensions() {
 100                 return toList("mkv", "mts", "mp4", "avi", "mpg", "mpeg", "vob", "m4v");
 101         }
 102
 103         private int getVideoBitrateValue(final BitrateParameter.bitrate bitRate) {
 104                 switch (bitRate) {
 105                 case LOW:
 106                         return 1000;
 107
 108                 case MEDIUM:
 109                         return 4000;
 110
 111                 case HIGH:
 112                         return 40000;
 113
 114                 case COPY:
 115                         return -1;
 116
 117                 default:
 118                         throw new RuntimeException("Video bitrate: " + bitRate
 119                                         + " is not supported.");
 120                 }
 121         }
 122
 123         @Override
 124         public boolean isTerminalMandatory() {
 125                 return true;
 126         }
 127
 128 }