1 // Copyright (c) 2007-2009 Nokia Corporation and/or its subsidiary(-ies).

     2 // All rights reserved.

     3 // This component and the accompanying materials are made available

     4 // under the terms of the License "Symbian Foundation License v1.0" to Symbian Foundation members and "Symbian Foundation End User License Agreement v1.0" to non-members

     5 // which accompanies this distribution, and is available

     6 // at the URL "http://www.symbianfoundation.org/legal/licencesv10.html".

     7 //

     8 // Initial Contributors:

     9 // Nokia Corporation - initial contribution.

    10 //

    11 // Contributors:

    12 //

    13 // Description:

    14 //

    15 

    16 #ifndef CONVERSIONCOEFFICIENT_H

    17 #define CONVERSIONCOEFFICIENT_H

    18 

    19 /**

    20 Specifies the possible YUV-RGB conversion coefficients to use. 

    21 

    22 The coefficients are determined by two factors: 

    23 The YUV signal range used, and the actual conversion multipliers.

    24 @publishedAll

    25 @released

    26 */

    27 enum TYuvCoefficients

    28 	{

    29 	/**

    30 	The nominal Y range is [16…235] and the U and V ranges [16…240]. This corresponds to H.264 | MPEG-4 AVC video_range_flag=0.

    31 	*/

    32 	EYuvRange0	   = 0x01000000,

    33 

    34 	/**

    35 	The nominal Y, U, and V ranges are [0…255]. This corresponds to H.264 | MPEG-4 AVC video_range_flag=1.

    36 	*/

    37 	EYuvRange1	   = 0x02000000,

    38 

    39 	/**

    40 	The YUV-RGB conversion cofficients are those specified in ITU-R Recommendation BT.709. 

    41 	This corresponds to H.264 | MPEG-4 AVC matrix_coefficients=1. BT.709 is the default YUV format used 

    42 	for MPEG-4 Part 2 and H.264 | MPEG-4 AVC.

    43 	*/

    44 	EYuvBt709		= 0x00000001,

    45 

    46 	/**

    47 	YUV data with range 0 (Y [16…235]) and conversion coefficients according to BT.709. 

    48 	This is the most typical configuration.

    49 	*/

    50 	EYuvBt709Range0  = EYuvRange0 | EYuvBt709,

    51 

    52 	/**

    53 	YUV data with range 1 (Y [0…255]) and conversion coefficients according to BT.709.

    54 	*/

    55 	EYuvBt709Range1  = EYuvRange1 | EYuvBt709,

    56 

    57 	/**

    58 	The YUV-RGB conversion cofficients are those specified in ITU-R Recommendation BT.601.5.

    59 	*/

    60 	EYuvBt601		= 0x00000002,

    61 

    62 	/**

    63 	YUV data with range 0 (Y [16…235]) and conversion coefficients according to BT.601.5. 

    64 	This is the data format used in H.263.

    65 	*/

    66 	EYuvBt601Range0  = EYuvRange0 | EYuvBt601,

    67 

    68 	/**

    69 	YUV data with range 1 (Y [0…255]) and conversion coefficients according to BT.601.5.

    70 	*/

    71 	EYuvBt601Range1  = EYuvRange1 | EYuvBt601,

    72 

    73 	/**

    74 	A custom conversion matrix is used. 

    75 	@see TYuvConversionMatrix.

    76 	*/

    77 	ECustomYuvMatrix = 0x00800000

    78 	};

    79 

    80 #endif // CONVERSIONCOEFFICIENT_H