1 /*

     2 * Copyright (c) 2004-2006 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:    Provides G729 payload format spesific definitions.

    15 *

    16 */

    17 

    18 

    19 

    20 

    21 #ifndef G729PAYLOADFORMATUTIL_H

    22 #define G729PAYLOADFORMATUTIL_H

    23 

    24 //  INCLUDES

    25 #ifdef _DEBUG

    26     #include <e32svr.h>

    27     #define TRACE_G729_PAYLOAD_FORMAT_WRITE

    28     #define TRACE_G729_PAYLOAD_FORMAT_READ

    29 #endif

    30 

    31 // CONSTANTS

    32 const TUint KG729SampleRate = 8000;

    33 const TUint8 KDefNumOfChannels = 1;

    34 

    35 // Codec header bytes indicating type of the frame

    36 const TUint8 KAudioFrameHeaderByte( 1 );

    37 const TUint8 KCNoiseFrameHeaderByte( 2 );

    38 

    39 // Number of header bytes

    40 const TUint8 KG729NumOfHeaderBytes = 2;

    41 

    42 // Size of the speech parameter buffer codec uses

    43 const TUint8 KG729CodecEncBufSize = 24;

    44 const TUint8 KG729CodecDecBufSize = 24;

    45 

    46 // Number of 16-bit speech parameters codec uses

    47 const TUint8 KG729NumOfAudioParams = 11;

    48 const TUint8 KG729NumOfCNoiseParams = 4;

    49 

    50 // Number of bits used for each codec input/output speech parameter

    51 const TUint8 KG729CodecBufAudioBits[] = { 8, 10, 8, 1, 13, 4, 7, 5, 13, 4, 7 };

    52 const TUint8 KG729CodecBufCNoiseBits[] = { 1, 5, 4, 5 };

    53 

    54 // RFC3551

    55 const TInt KG729FrameSize10ms       = 10;

    56 const TInt KG729CNFrameSize         = 2;

    57 const TInt KG729FrameTimeInMs       = 10;

    58 

    59 // Bits in one byte

    60 const TUint8 KBitsInByte = 8;

    61 

    62 #endif      // G729PAYLOADFORMATUTIL_H

    63             

    64 // End of File