Adds a converter for web video and changes behavior of the normal video converter

The normal video converter now includes all streams
The web video converter selects the first of each stream
Changes some method names
Moves the convert command to the abstract converter

src/main/java/net/knarcraft/ffmpegconverter/converter/WebVideoConverter.java

@@ -0,0 +1,53 @@
+package net.knarcraft.ffmpegconverter.converter;
+
+import net.knarcraft.ffmpegconverter.streams.AudioStream;
+import net.knarcraft.ffmpegconverter.streams.StreamObject;
+import net.knarcraft.ffmpegconverter.streams.SubtitleStream;
+import net.knarcraft.ffmpegconverter.streams.VideoStream;
+import net.knarcraft.ffmpegconverter.utility.FFMpegHelper;
+
+import java.io.File;
+import java.util.List;
+
+public class WebVideoConverter extends AbstractConverter {
+
+    /**
+     * Instantiates a new web video converter
+     *
+     * @param ffprobePath  <p>Path/command to ffprobe.</p>
+     * @param ffmpegPath   <p>Path/command to ffmpeg.</p>
+     * @param outExtension <p>The extension of the new file.</p>
+     */
+    public WebVideoConverter(String ffprobePath, String ffmpegPath, String outExtension) {
+        super(outExtension);
+        this.ffprobePath = ffprobePath;
+        this.ffmpegPath = ffmpegPath;
+    }
+
+    @Override
+    public String[] getValidFormats() {
+        return videoFormats;
+    }
+
+    @Override
+    public String[] generateConversionCommand(String executable, File file, List<StreamObject> streams, String outFile) {
+        List<String> command = FFMpegHelper.getFFMpegWebVideoCommand(executable, file.getName());
+        if (this.debug) {
+            FFMpegHelper.addDebugArguments(command, 50, 120);
+        }
+
+        //Get first streams from the file
+        SubtitleStream subtitleStream = getFirstSubtitleStream(streams);
+        VideoStream videoStream = getFirstVideoStream(streams);
+        AudioStream audioStream = getFirstAudioSteam(streams);
+
+        //Add streams to output
+        FFMpegHelper.addSubtitleAndVideoStream(command, subtitleStream, videoStream, file);
+        if (audioStream != null) {
+            FFMpegHelper.addAudioStream(command, audioStream, true);
+        }
+
+        command.add(outFile);
+        return command.toArray(new String[0]);
+    }
+}