audioclientapppacket.h

Go to the documentation of this file.

// ##########################################################################
// ####                                                                  ####
// ####                      RTP Audio Server Project                    ####
// ####                    ============================                  ####
// ####                                                                  ####
// #### Audio Client App Packet                                          ####
// ####                                                                  ####
// ####           Copyright (C) 1999-2012 by Thomas Dreibholz            ####
// ####                                                                  ####
// #### Contact:                                                         ####
// ####    EMail: dreibh@iem.uni-due.de                                  ####
// ####    WWW:   https://www.nntb.no/~dreibh/rtpaudio                ####
// ####                                                                  ####
// #### ---------------------------------------------------------------- ####
// ####                                                                  ####
// #### This program is free software: you can redistribute it and/or    ####
// #### modify it under the terms of the GNU General Public License as   ####
// #### published by the Free Software Foundation, either version 3 of   ####
// #### the License, or (at your option) any later version.              ####
// ####                                                                  ####
// #### This program is distributed in the hope that it will be useful,  ####
// #### but WITHOUT ANY WARRANTY; without even the implied warranty of   ####
// #### MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the    ####
// #### GNU General Public License for more details.                     ####
// ####                                                                  ####
// #### You should have received a copy of the GNU General Public        ####
// #### License along with this program.  If not, see                    ####
// #### <http://www.gnu.org/licenses/>.                                  ####
// ####                                                                  ####
// ##########################################################################
// $Id: audioclientapppacket.h 1286 2011-12-18 13:43:16Z dreibh $


#ifndef AUDIOCLIENTAPPPACKET_H
#define AUDIOCLIENTAPPPACKET_H


// #include <linux/ip.h>


// ###### IPv6 Traffic Class Settings #######################################
const card8 AudioServerDefaultTrafficClass = 0x00;
   // IPTOS_THROUGHPUT|IPTOS_RELIABILITY|IPTOS_LOWDELAY|IPTOS_PREC_FLASH;

const card8 AudioClientDefaultTrafficClass = 0x00;
   // IPTOS_RELIABILITY|IPTOS_PREC_PRIORITY;

static const cardinal RTPAudioDefaultPort = 7500;

static const card32 RTPAudioDataPPID = 0x2909ffff;

static const card32 RTPAudioControlPPID = 0x2909fffe;


struct AudioClientAppPacket
{
   // ====== Constructor ====================================================
   public:
   AudioClientAppPacket();

   // ====== Byte order translation =========================================
   void translate();


   // ====== Status functions ===============================================
   void reset();


   // ====== Constants ======================================================
   static const card32 AudioClientFormatID = 0x75003388;

   enum AudioClientAppMode {
      ACAS_UnknownCommand = 0,
      ACAS_Play           = 1,
      ACAS_Pause          = 2
   };


   // ====== Packet data ====================================================
   public:
   card32 FormatID;

   card16 SequenceNumber;

   card16 PosChgSeqNumber;


   card16 Status;

   card16 SamplingRate;

   card8 Channels;

   card8 Bits;

   card16 Encoding;

   card32 BandwidthLimit;

   card64 StartPosition;

   card64 RestartPosition;

   char MediaName[128];
} __attribute__((packed));


struct AudioClientSDESPrivPacket
{
   card8                PrefixLength;
   char                 Prefix[7];
   AudioClientAppPacket Status;
} __attribute__((packed));


#endif