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1 /* |
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2 * Copyright (c) 2010 Ixonos Plc. |
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3 * All rights reserved. |
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4 * This component and the accompanying materials are made available |
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5 * under the terms of the "Eclipse Public License v1.0" |
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6 * which accompanies this distribution, and is available |
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7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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8 * |
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9 * Initial Contributors: |
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10 * Nokia Corporation - Initial contribution |
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11 * |
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12 * Contributors: |
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13 * Ixonos Plc |
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14 * |
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15 * Description: |
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16 * Definition for CMPEG4Timer. |
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17 * |
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18 */ |
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19 |
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20 |
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21 |
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22 |
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23 #ifndef __MPEG4TIMER_H__ |
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24 #define __MPEG4TIMER_H__ |
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25 |
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26 /* |
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27 * Includes |
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28 */ |
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29 |
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30 #include <e32base.h> |
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31 #include <gdi.h> |
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32 #include <e32std.h> |
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33 #include "vedcommon.h" |
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34 #include "movieprocessorimpl.h" |
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35 |
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36 /* |
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37 * Class Declarations |
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38 */ |
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39 |
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40 class CMPEG4Timer: public CBase |
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41 { |
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42 public: |
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43 |
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44 /** |
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45 * Public member functions |
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46 */ |
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47 |
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48 /** |
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49 * C++ default constructor |
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50 */ |
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51 CMPEG4Timer() {}; |
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52 |
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53 /** |
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54 * Destructor can be called at any time (i.e., also in the middle of a processing operation) |
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55 * Should release all allocated resources, including releasing all allocated memory and |
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56 * *deleting* all output files that are currently being processed but not yet completed. |
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57 */ |
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58 ~CMPEG4Timer(); |
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59 |
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60 /** |
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61 * Constructors for instantiating new video processors. |
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62 * Should reserve as little resources as possible at this point. |
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63 */ |
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64 static CMPEG4Timer * NewL(CMovieProcessorImpl * aMovProcessor, TInt aTimeIncrementResolution); |
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65 |
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66 /** |
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67 * Get the frame duration in millisec from the last frame with modulo base larger than zero |
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68 * |
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69 * @return Duration in millisec |
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70 * |
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71 */ |
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72 TInt64 GetMPEG4DurationInMsSinceLastModulo(); |
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73 |
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74 /** |
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75 * Update the time stamp and duration of the last frame for MPEG-4 video |
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76 * |
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77 * @param aAbsFrameNumber frame number in the movie |
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78 * @param aFrameNumber frame number in the current video clip |
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79 * @param aTimeScale time scale |
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80 * |
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81 */ |
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82 void UpdateMPEG4Time(TInt aAbsFrameNumber, TInt aFrameNumber, TInt aTimeScale); |
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83 |
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84 /** |
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85 * Pointer to iMPEG4TimeStamp object (contains MPEG-4 frame timing information) |
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86 * |
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87 */ |
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88 tMPEG4TimeParameter * GetMPEG4TimeStampPtr() { return &iMPEG4TimeStamp; } |
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89 |
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90 /** |
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91 * Pointer to iMPEG4TimeResolution object (contains MPEG-4 frame time resolution information) |
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92 * |
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93 */ |
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94 TInt * GetMPEG4TimeResolutionPtr() { return &iMPEG4TimeResolution; } |
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95 |
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96 |
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97 private: |
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98 |
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99 /* |
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100 * Private member functions |
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101 */ |
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102 |
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103 /** |
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104 * Symbian OS C++ style constructor |
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105 * |
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106 */ |
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107 void ConstructL(CMovieProcessorImpl * aMovProcessor, TInt aTimeIncrementResolution); |
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108 |
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109 /* |
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110 * Member variables |
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111 */ |
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112 |
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113 /* frame duration in millisec from the last frame with modulo base larger than zero */ |
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114 TInt iMPEG4DurationInMsSinceLastModulo; |
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115 |
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116 /* structure for timing information of MPEG-4 frame */ |
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117 tMPEG4TimeParameter iMPEG4TimeStamp; |
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118 |
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119 /* time resolution of MPEG-4 video clip */ |
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120 TInt iMPEG4TimeResolution; |
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121 |
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122 /* video processor object */ |
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123 CMovieProcessorImpl * iProcessor; |
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124 |
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125 TInt iPrevModuloTimeBaseVal; |
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126 |
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127 }; |
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128 |
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129 #endif /* __TRANSCODER_H__ */ |
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130 |
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131 /* End of File */ |