1 /*

     2 * Copyright (c) 2007 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 the License "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:    Class to parse RTP packets.*

    15 */

    16 

    17 

    18 

    19 

    20 #ifndef CRTPPACKET_H

    21 #define CRTPPACKET_H

    22 

    23 // INCLUDES

    24 #include <RtpHeader.h>

    25 

    26 // CONSTANTS

    27 // None

    28 

    29 // MACROS

    30 // None

    31 

    32 // DATA TYPES

    33 // None

    34 

    35 // FORWARD DECLARATIONS

    36 // None

    37 

    38 // CLASS DECLARATION

    39 

    40 /**

    41 *  Class for RTP header.

    42 *

    43 *  @lib RtpClipHandler.lib

    44 *  @since Series 60 3.0

    45 */

    46 class CRtpPacket : public CBase 

    47     {

    48 

    49 public: // Constructors and destructor

    50         

    51     /**

    52     * Two-phased constructor.

    53     * @return a pointer to the newly created RTP packet object.

    54     */

    55     IMPORT_C static CRtpPacket* NewL();

    56     

    57     /**

    58     * Two-phased constructor.

    59     * @return a pointer to the newly created RTP packet object.

    60     */

    61     IMPORT_C static CRtpPacket* NewLC();

    62 

    63     /**

    64     * Destructor.

    65     */

    66     IMPORT_C virtual ~CRtpPacket();

    67 

    68 public: // New functions

    69 

    70     /**

    71     * Parse RTCP packet buffer to retrive RTCP fields.

    72     * @since Series 60 3.0

    73     * @param aPktBuf a RTP packet.

    74     * @return system wide error code.

    75     */

    76     IMPORT_C TInt ParseRtp( const TDesC8& aPktBuf );

    77     

    78     /**

    79     * Sets syncronised time stamp of packet.

    80     * @since Series 60 3.0

    81     * @param aTs a new timestamp value.

    82     * @return none.

    83     */

    84     IMPORT_C void SetTimeStamp( const TUint32 aTs );

    85     

    86 private: // Constructors and destructor

    87 

    88     /**

    89     * By default Symbian 2nd phase constructor is private.

    90     */

    91     void ConstructL();

    92 

    93     /**

    94     * C++ default constructor.

    95     * @since Series 60 3.0

    96     */

    97     CRtpPacket();

    98 

    99 private: // New functions

   100 

   101     /**

   102     * Read 32 bits from current offset.

   103     * @since Series 60 3.0

   104     * @param aPktBuf a packet buffer.

   105     * @param aByte a byte index.

   106     * @return an readed unsigned integer.

   107     */

   108     TUint Read32Bits( const TPtrC8& aPktBuf,

   109                       TInt& aByte );

   110 

   111 public: // Data

   112 

   113     /**

   114     * Header of the packet.

   115     */

   116     TRtpRecvHeader iRtpRecvHeader;

   117 

   118     /**

   119     * Payload off the packet.

   120     */

   121     TPtrC8 iPayload;

   122 

   123     };

   124 

   125 #endif // CRTPPACKET_H

   126 

   127 // End of File