http://netty.io/netty-all/: Netty is an asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers and clients. (The Netty Project) 
public abstract class io.netty.handler.codec.rtsp.RtspObjectEncoder<H extends io.netty.handler.codec.http.HttpMessage> extends io.netty.handler.codec.http.HttpObjectEncoder<H>
  minor version: 0
  major version: 59
  flags: flags: (0x0421) ACC_PUBLIC, ACC_SUPER, ACC_ABSTRACT
  this_class: io.netty.handler.codec.rtsp.RtspObjectEncoder
  super_class: io.netty.handler.codec.http.HttpObjectEncoder
{
  protected void <init>();
    descriptor: ()V
    flags: (0x0004) ACC_PROTECTED
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // io.netty.handler.codec.rtsp.RtspObjectEncoder this
         0: .line 37
            aload 0 /* this */
            invokespecial io.netty.handler.codec.http.HttpObjectEncoder.<init>:()V
         1: .line 38
            return
        end local 0 // io.netty.handler.codec.rtsp.RtspObjectEncoder this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    2     0  this  Lio/netty/handler/codec/rtsp/RtspObjectEncoder<TH;>;

  public boolean acceptOutboundMessage(java.lang.Object);
    descriptor: (Ljava/lang/Object;)Z
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=2, args_size=2
        start local 0 // io.netty.handler.codec.rtsp.RtspObjectEncoder this
        start local 1 // java.lang.Object msg
         0: .line 42
            aload 1 /* msg */
            instanceof io.netty.handler.codec.http.FullHttpMessage
            ireturn
        end local 1 // java.lang.Object msg
        end local 0 // io.netty.handler.codec.rtsp.RtspObjectEncoder this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lio/netty/handler/codec/rtsp/RtspObjectEncoder<TH;>;
            0    1     1   msg  Ljava/lang/Object;
    Exceptions:
      throws java.lang.Exception
    MethodParameters:
      Name  Flags
      msg   
}
Signature: <H::Lio/netty/handler/codec/http/HttpMessage;>Lio/netty/handler/codec/http/HttpObjectEncoder<TH;>;
SourceFile: "RtspObjectEncoder.java"
InnerClasses:
  public abstract Sharable = io.netty.channel.ChannelHandler$Sharable of io.netty.channel.ChannelHandler
    RuntimeVisibleAnnotations: 
      io.netty.channel.ChannelHandler$Sharable()
      java.lang.Deprecated()