1 /*

     2 * Copyright (c) 2004-2005 Nokia Corporation and/or its subsidiary(-ies).

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description:    STP (Streaming Transport Protocol) header of RTP packet

    15 *              : to send/receive.

    16 *

    17 */

    18 

    19 

    20 

    21 

    22 #ifndef __RTPSTPHEADER_H

    23 #define __RTPSTPHEADER_H

    24 

    25 //  INCLUDES

    26 #include <rtpdef.h>

    27 

    28 // CONSTANTS

    29 

    30 // MACROS

    31 

    32 // DATA TYPES

    33 

    34 // FUNCTION PROTOTYPES

    35 

    36 // FORWARD DECLARATIONS

    37 

    38 

    39 // CLASS DECLARATION

    40 

    41 /**

    42 *  STP (Streaming Transport Protocol) common parts of RTP packet headers.

    43 *

    44 *  @lib RtpStpPacket.dll

    45 */

    46 class TRtpHeader

    47     {

    48     public: // Header fields

    49         TRtpHeader();

    50         TUint8 iMarker;              // Marker (M) (1 bit)

    51         TUint8 iPadding;             // Padding (P) (1 bit)

    52         TUint8 iChecksumInd;         // Checksum indication (C) (1 bit)

    53         TUint8 iSpeechItemToggle;    // Speech item toggle indication (S) (1 bit)

    54         TUint8 iPayloadType;         // Payload type (PT) (3 bits)

    55         TUint8 iSeqNum;              // Sequence number (8 bits)

    56         TUint16 iChecksum;           // Checksum (16 bits)

    57     };

    58 

    59 inline TRtpHeader::TRtpHeader() 

    60     : iMarker( 0 ),

    61       iPadding( 0 ),

    62       iChecksumInd( 0 ),

    63       iSpeechItemToggle( 0 ),

    64       iPayloadType( 0 ),

    65       iSeqNum( 0 ),

    66       iChecksum( 0 )

    67     {

    68     };

    69 

    70 /**

    71 *  STP (Streaming Transport Protocol) header of RTP packet to send.

    72 *

    73 *  @lib RtpStpPacket.dll

    74 */

    75 class TRtpSendHeader : public TRtpHeader

    76     {

    77     };

    78 

    79 /**

    80 *  STP (Streaming Transport Protocol) header of RTP packet to receive.

    81 *

    82 *  @lib RtpStpPacket.dll

    83 */

    84 class TRtpRecvHeader : public TRtpHeader

    85     {

    86     };

    87 

    88 #endif      // __RTPSTPHEADER_H

    89 

    90 // End of File