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1 // Copyright (c) 2007-2009 Nokia Corporation and/or its subsidiary(-ies). |
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2 // All rights reserved. |
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3 // This component and the accompanying materials are made available |
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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 |
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5 // which accompanies this distribution, and is available |
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6 // at the URL "http://www.symbianfoundation.org/legal/licencesv10.html". |
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7 // |
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8 // Initial Contributors: |
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9 // Nokia Corporation - initial contribution. |
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10 // |
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11 // Contributors: |
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12 // |
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13 // Description: |
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14 // Constants and structs specific to Sorenson Spark. See the DevVideo specs for more details. |
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15 // |
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16 // |
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17 |
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18 #ifndef __DEVVIDEO_SORENSENSPARK_H__ |
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19 #define __DEVVIDEO_SORENSENSPARK_H__ |
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20 |
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21 #include <e32base.h> |
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22 |
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23 /** |
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24 Specifies the picture type. |
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25 @publishedAll |
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26 @released |
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27 */ |
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28 enum TSparkPictureType |
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29 { |
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30 /** |
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31 Indicates a keyframe |
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32 */ |
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33 ESparkPictureTypeKey = 0x01, |
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34 /** |
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35 Indicates a predicted or inter frame |
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36 */ |
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37 ESparkPictureTypeP = 0x02, |
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38 /** |
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39 Indicates a predicted frame that is disposable |
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40 */ |
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41 ESparkPictureTypeDisp = 0x04 |
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42 }; |
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43 |
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44 /** |
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45 Specifies action of deblocking filter |
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46 @publishedAll |
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47 @released |
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48 */ |
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49 enum TSparkDeblocking |
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50 { |
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51 /** |
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52 Never deblock |
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53 */ |
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54 EDeblockNever = 0x1, |
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55 /** |
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56 Always deblock |
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57 */ |
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58 EDeblockAlways = 0x2, |
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59 /** |
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60 Apply deblocking as requested by video packet deblocking flag |
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61 */ |
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62 EDeblockAsIndicated = 0x4 |
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63 }; |
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64 |
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65 |
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66 /** |
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67 Settings to describe decompression |
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68 @publishedAll |
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69 @released |
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70 */ |
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71 class TSparkDecompressSettings |
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72 { |
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73 public: |
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74 /** |
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75 If this member is set to EDeblockNever the decompressor will never deblock the image even |
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76 if the deblocking bit is set in the bitstream. If this member is set to EDeblockAlways the |
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77 decompressor will deblock the image even if the deblocking bit not set in the bitstream. |
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78 If this member is set to EDeblockAsIndicated then deblocking will only occur when the |
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79 deblocking bit in the bitstream is set to 1. |
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80 */ |
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81 TSparkDeblocking iDeblockingMethod; |
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82 }; |
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83 |
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84 |
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85 /** |
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86 Sorenson Spark video packet header |
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87 @publishedAll |
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88 @released |
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89 */ |
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90 class TSparkPictureHeader |
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91 { |
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92 public: |
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93 /** |
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94 Indicates the temporal reference, which is formed by incrementing the value in the previously transmitted |
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95 picture header by one, plus the number of non-transmitted pictures since the previously transmitted one. |
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96 */ |
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97 TUint iTemporalReference; |
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98 /** |
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99 Indicates the picture coding type. iPictureType is set according to the picture header as one of |
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100 the values defined in TSparkPictureType |
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101 */ |
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102 TSparkPictureType iPictureType; |
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103 /** |
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104 Requests use of deblocking filter |
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105 */ |
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106 TBool Deblocking; |
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107 /** |
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108 Indicates the initial value of the quantization parameter |
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109 */ |
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110 TUint iQuantizer; |
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111 }; |
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112 |
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113 #endif |