www in docker support

decompiled-libs/www/acxent-videoj-1.0.0/org/jcodec/codecs/y4m/Y4MMuxer.java

@@ -0,0 +1,53 @@
+package org.jcodec.codecs.y4m;
+
+import java.io.IOException;
+import java.nio.ByteBuffer;
+import java.nio.channels.WritableByteChannel;
+import org.jcodec.common.AudioCodecMeta;
+import org.jcodec.common.Codec;
+import org.jcodec.common.Muxer;
+import org.jcodec.common.MuxerTrack;
+import org.jcodec.common.VideoCodecMeta;
+import org.jcodec.common.model.Packet;
+import org.jcodec.common.model.Size;
+
+public class Y4MMuxer implements Muxer, MuxerTrack {
+  private WritableByteChannel ch;
+  
+  private boolean headerWritten;
+  
+  private VideoCodecMeta meta;
+  
+  public static final byte[] frameTag = "FRAME\n".getBytes();
+  
+  public Y4MMuxer(WritableByteChannel ch) {
+    this.ch = ch;
+  }
+  
+  protected void writeHeader() throws IOException {
+    Size size = this.meta.getSize();
+    byte[] bytes = String.format("YUV4MPEG2 W%d H%d F25:1 Ip A0:0 C420jpeg XYSCSS=420JPEG\n", size.getWidth(), size.getHeight())
+      .getBytes();
+    this.ch.write(ByteBuffer.wrap(bytes));
+  }
+  
+  public void addFrame(Packet outPacket) throws IOException {
+    if (!this.headerWritten) {
+      writeHeader();
+      this.headerWritten = true;
+    } 
+    this.ch.write(ByteBuffer.wrap(frameTag));
+    this.ch.write(outPacket.data.duplicate());
+  }
+  
+  public MuxerTrack addVideoTrack(Codec codec, VideoCodecMeta meta) {
+    this.meta = meta;
+    return this;
+  }
+  
+  public MuxerTrack addAudioTrack(Codec codec, AudioCodecMeta meta) {
+    throw new RuntimeException("Y4M doesn't support audio");
+  }
+  
+  public void finish() throws IOException {}
+}