Fixed aspect ratio of WEBM files

[meviz.git] / src / main / java / eu / svjatoslav / meviz / encoder / converters / AvconvVideo.java

diff --git a/src/main/java/eu/svjatoslav/meviz/encoder/converters/AvconvVideo.java b/src/main/java/eu/svjatoslav/meviz/encoder/converters/AvconvVideo.java
index c63837a..2492b52 100644 (file)
--- a/src/main/java/eu/svjatoslav/meviz/encoder/converters/AvconvVideo.java
+++ b/src/main/java/eu/svjatoslav/meviz/encoder/converters/AvconvVideo.java
@@ -1,7 +1,7 @@
 /*
  * Meviz - Various tools collection to work with multimedia.
- * Copyright (C) 2012, Svjatoslav Agejenko, svjatoslav@svjatoslav.eu
- * 
+ * Copyright (C) 2012 -- 2017, Svjatoslav Agejenko, svjatoslav@svjatoslav.eu
+ *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of version 2 of the GNU General Public License
  * as published by the Free Software Foundation.
@@ -9,70 +9,151 @@
 
 package eu.svjatoslav.meviz.encoder.converters;
 
+import eu.svjatoslav.meviz.encoder.BitrateParameter.Bitrate;
+import eu.svjatoslav.meviz.encoder.EncodingOptions;
+
 import java.io.File;
 import java.util.List;
 
-import eu.svjatoslav.meviz.encoder.EncodingOptions;
-
 public class AvconvVideo extends AbstractConverter {
 
-       @Override
-       public String getCommand(final File inputFile, final File targetFile,
-                       final EncodingOptions options) {
+    private String constructCodecParamsString(final EncodingOptions options,
+                                              final int videoBitrate, final int audioBitrate,
+                                              final String videoCodec, final String audioCodec) {
+
+        final StringBuilder codecParams = new StringBuilder();
+
+        if (audioCodec == null)
+            codecParams.append("-an ");
+        else
+            codecParams.append("-acodec " + audioCodec + " ");
+
+        codecParams.append("-vcodec " + videoCodec + " ");
+
+        if (videoBitrate != -1)
+            codecParams.append("-b " + videoBitrate + "k ");
+
+        if (audioBitrate != -1)
+            codecParams.append("-b:a " + audioBitrate + "k ");
+
+        if (options.isDeinterlace())
+            codecParams.append("-filter:v yadif ");
+
+        if (options.getTargetFps() != null)
+            codecParams.append("-r " + options.getTargetFps() + " ");
+
+        return codecParams.toString();
+    }
+
+    private int getAudioBitrateValue(final Bitrate bitRate) {
+        switch (bitRate) {
+            case LOW:
+                return 128;
+
+            case MEDIUM:
+                return 160;
+
+            case HIGH:
+                return 320;
+
+            case COPY:
+                return -1;
+
+            case NONE:
+                return -1;
+
+            default:
+                throw new RuntimeException("Audio bitrate: " + bitRate
+                        + " is not supported.");
+        }
+    }
+
+    @Override
+    public String getCommand(final File inputFile, final File targetFile,
+                             final EncodingOptions options, final String targetFormat) {
+
+        int videoBitrate = getVideoBitrateValue(options.getVideoBitrate());
+        int audioBitrate = getAudioBitrateValue(options.getAudioBitrate());
+
+        // convert
+        final StringBuilder codecParams = new StringBuilder();
+
+        String videoCodec = "libx264";
+        String audioCodec = "libmp3lame";
+
+        if (targetFormat.equals("webm")) {
+            videoCodec = "vp8";
+            audioCodec = "opus";
+            codecParams.append("-s 800x450 ");
+        }
+
+        if (options.getVideoBitrate() == Bitrate.COPY)
+            videoCodec = "copy";
+
+        if (options.getAudioBitrate() == Bitrate.COPY)
+            audioCodec = "copy";
+
+        if (options.getAudioBitrate() == Bitrate.NONE)
+            audioCodec = null;
+
+        if (options.isForPortablePlayer()) {
+            videoBitrate = 1000;
+            audioBitrate = 128;
+            videoCodec = "libxvid";
 
-               int videoBitrate;
-               int audioBitrate;
+            // reduce resolution
+            codecParams.append("-s 640x480 ");
 
-               switch (options.videoBitrate) {
-               case LOW:
-                       videoBitrate = 1000;
-                       audioBitrate = 128;
-                       break;
+            // enforce maximum keyframe interval
+            codecParams.append("-g 150 ");
+        }
 
-               case MEDIUM:
-                       videoBitrate = 3500;
-                       audioBitrate = 128;
-                       break;
+        codecParams.append(constructCodecParamsString(options, videoBitrate,
+                audioBitrate, videoCodec, audioCodec));
 
-               case HIGH:
-                       videoBitrate = 40000;
-                       audioBitrate = 500;
-                       break;
+        return "avconv -i \"" + inputFile.getAbsolutePath() + "\" "
+                + codecParams.toString() + "\"" + targetFile.getAbsolutePath()
+                + "\"";
+    }
 
-               default:
-                       throw new RuntimeException("Video bitrate: " + options.videoBitrate
-                                       + " is not supported.");
-               }
+    @Override
+    public List<String> getSourceFileExtensions() {
+        return getSupportedExtensions();
+    }
 
-               // convert
-               final StringBuffer codecParams = new StringBuffer();
+    private List<String> getSupportedExtensions() {
+        return toList("mkv", "mts", "mp4", "avi", "mpg", "mpeg", "vob", "m4v",
+                "webm", "mov", "asf");
+    }
 
-               codecParams.append("-acodec libmp3lame -vcodec libx264");
+    @Override
+    public List<String> getTargetFileExtensions() {
+        return getSupportedExtensions();
+    }
 
-               codecParams.append(" -b " + videoBitrate + "k");
-               codecParams.append(" -b:a " + audioBitrate + "k");
+    private int getVideoBitrateValue(final Bitrate bitRate) {
+        switch (bitRate) {
+            case LOW:
+                return 1000;
 
-               if (options.deinterlace)
-                       codecParams.append(" -filter:v yadif");
+            case MEDIUM:
+                return 4000;
 
-               return "avconv -i \"" + inputFile.getAbsolutePath() + "\" "
-                               + codecParams.toString() + " \"" + targetFile.getAbsolutePath()
-                               + "\"";
-       }
+            case HIGH:
+                return 16000;
 
-       @Override
-       public List<String> getSourceFileExtensions() {
-               return toList("mkv", "mts");
-       }
+            case COPY:
+                return -1;
 
-       @Override
-       public List<String> getTargetFileExtensions() {
-               return toList("mp4");
-       }
+            default:
+                throw new RuntimeException("Video bitrate: " + bitRate
+                        + " is not supported.");
+        }
+    }
 
-       @Override
-       public boolean isTerminalMandatory() {
-               return true;
-       }
+    @Override
+    public boolean isTerminalMandatory() {
+        return true;
+    }
 
 }