public override void WriteInnerBody(Mp4Stream stream)
 {
     base.WriteInnerBody(stream);
     stream.WriteUInt16(this.QtVersion);
     stream.WriteUInt16(this.QtRevision);
     stream.WriteUInt32(this.QtVendor);
     stream.WriteUInt16(this.ChannelCount);
     stream.WriteUInt16(this.SampleSize);
     stream.WriteUInt16(this.QtCompressionId);
     stream.WriteUInt16(this.QtPacketSize);
     stream.WriteUInt32(this.SampleRate);
     if (this.QtVersion == 1)
     {
         stream.WriteUInt32(this.QtV1SamplesPerPacket);
         stream.WriteUInt32(this.QtV1BytesPerPacket);
         stream.WriteUInt32(this.QtV1BytesPerFrame);
         stream.WriteUInt32(this.QtV1BytesPerSample);
     }
     else if (this.QtVersion == 2)
     {
         stream.WriteUInt32(this.QtV2StructSize);
         stream.WriteDouble(this.QtV2SampleRate64);
         stream.WriteUInt32(this.QtV2ChannelCount);
         stream.WriteUInt32(this.QtV2Reserved);
         stream.WriteUInt32(this.QtV2BitsPerChannel);
         stream.WriteUInt32(this.QtV2FormatSpecificFlags);
         stream.WriteUInt32(this.QtV2BytesPerAudioPacket);
         stream.WriteUInt32(this.QtV2LPCMFramesPerAudioPacket);
         if (this.QtV2Extension != null)
         {
             stream.Write(this.QtV2Extension, this.QtV2Extension.Length);
         }
     }
 }