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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 * Video decoder client. |
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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 #ifndef CTRVIDEODECODERCLIENT_H |
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23 #define CTRVIDEODECODERCLIENT_H |
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24 |
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25 // INCLUDES |
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26 #include <e32base.h> |
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27 #include <devvideoplay.h> |
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28 #include <devvideobase.h> |
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29 #include <devvideostandardcustominterfaces.h> |
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30 |
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31 #include "ctrcommon.h" |
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32 |
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33 |
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34 // FORWARD DECLARATIONS |
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35 class MTRDevVideoClientObserver; |
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36 class CCMRMediaBuffer; |
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37 |
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38 |
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39 /** |
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40 * Video decoder client |
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41 * @lib TRANSCODER.LIB |
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42 */ |
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43 NONSHARABLE_CLASS(CTRVideoDecoderClient) : public CBase, public MMMFDevVideoPlayObserver, public MMmfVideoResourceObserver |
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44 |
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45 { |
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46 public: // Constuctor / destructor |
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47 |
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48 /** |
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49 * Two-phased constructor. |
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50 */ |
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51 static CTRVideoDecoderClient* NewL(MTRDevVideoClientObserver& aObserver); |
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52 |
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53 /** |
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54 * Destructor. |
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55 */ |
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56 ~CTRVideoDecoderClient(); |
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57 |
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58 // Information methods |
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59 /** |
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60 * Checks codec support by MIME type |
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61 * @param aFormat MIME type |
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62 * @param aShortFormat MIME type (short version) |
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63 * @param aUid Uid of the codec to check |
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64 * @param aFallbackUid Fallback Uid incase the first one is not found |
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65 * @return TBool value: ETrue - givemn MIME type is supported; EFalse - no support; |
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66 */ |
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67 TBool SupportsCodec(const TDesC8& aFormat, const TDesC8& aShortFormat, TInt aUid, TInt aFallbackUid); |
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68 |
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69 /** |
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70 * Gets codec info |
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71 * @param none |
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72 * @return none |
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73 */ |
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74 void GetCodecInfoL(); |
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75 |
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76 /** |
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77 * Sets codec parameters |
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78 * @param aCodecType Codec type |
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79 * @param aCodecLevel Codec level |
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80 * @param aInputFormat Input video format |
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81 * @param aOutputFormat Output video format |
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82 * @return none |
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83 */ |
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84 void SetCodecParametersL(TInt aCodecType, TInt aCodecLevel, const TTRVideoFormat& aInputFormat, |
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85 const TTRVideoFormat& aOutputFormat); |
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86 |
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87 /** |
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88 * From MMMFDevVideoPlayObserver. Notifies the client that one or more new empty input buffers are available |
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89 * @param none |
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90 * @return none |
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91 */ |
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92 void MdvpoNewBuffers(); |
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93 |
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94 /** |
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95 * From MMMFDevVideoPlayObserver. Returns a used input video picture back to the caller |
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96 * @param aPicture Video picture |
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97 * @return none |
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98 */ |
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99 void MdvpoReturnPicture(TVideoPicture *aPicture); |
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100 |
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101 /** |
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102 * From MMMFDevVideoPlayObserver. Delivers supplemental information from a coded data unit |
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103 * @param aData Data, aTimestamp TimeStamp info, aPictureId Picture Id |
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104 * @return none |
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105 */ |
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106 void MdvpoSupplementalInformation(const TDesC8 &aData, const TTimeIntervalMicroSeconds &aTimestamp, |
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107 const TPictureId &aPictureId); |
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108 |
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109 /** |
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110 * From MMMFDevVideoPlayObserver. Back channel information from the decoder, indicating a picture loss |
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111 * without specifying the lost picture |
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112 * @param none |
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113 * @return none |
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114 */ |
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115 void MdvpoPictureLoss(); |
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116 |
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117 /** |
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118 * From MMMFDevVideoPlayObserver. Back channel information from the decoder, indicating the pictures that have been lost |
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119 * @param aPictures Array with picture Ids |
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120 * @return none |
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121 */ |
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122 void MdvpoPictureLoss(const TArray< TPictureId > &aPictures); |
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123 |
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124 /** |
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125 * From MMMFDevVideoPlayObserver. Back channel information from the decoder, indicating the loss of consecutive |
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126 * macroblocks in raster scan order |
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127 * @param aFirstMacroblock First macroblock, aNumMacroblocks, Number of macroblocks, aPicture PictureId |
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128 * @return none |
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129 */ |
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130 void MdvpoSliceLoss(TUint aFirstMacroblock, TUint aNumMacroblocks, const TPictureId &aPicture); |
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131 |
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132 /** |
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133 * From MMMFDevVideoPlayObserver. Back channel information from the decoder, indicating a reference picture |
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134 * selection request |
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135 * @param aSelectionData Selection data |
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136 * @return none |
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137 */ |
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138 void MdvpoReferencePictureSelection(const TDesC8 &aSelectionData); |
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139 |
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140 /** |
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141 * From MMMFDevVideoPlayObserver. Called when a timed snapshot request has been completed |
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142 * @param aError Error, aPictureData Picture data, aPresentationTimestamp Presentation timestamp, aPictureId picture Id |
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143 * @return |
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144 */ |
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145 void MdvpoTimedSnapshotComplete(TInt aError, TPictureData *aPictureData, |
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146 const TTimeIntervalMicroSeconds &aPresentationTimestamp, const TPictureId &aPictureId); |
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147 |
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148 /** |
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149 * From MMMFDevVideoPlayObserver. Notifies the client that one or more new output pictures are available |
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150 * @param none |
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151 * @return none |
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152 */ |
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153 void MdvpoNewPictures(); |
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154 |
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155 /** |
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156 * From MMMFDevVideoPlayObserver. Reports a fatal decoding or playback error |
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157 * @param aError Rin-time error |
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158 * @return none |
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159 */ |
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160 void MdvpoFatalError(TInt aError); |
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161 |
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162 /** |
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163 * From MMMFDevVideoPlayObserver. Reports that DevVideoPlay initialization has completed |
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164 * @param aError Init error status |
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165 * @return none |
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166 */ |
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167 void MdvpoInitComplete(TInt aError); |
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168 |
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169 /** |
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170 * From MMMFDevVideoPlayObserver. Reports that the input video stream end has been reached and all pictures |
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171 * have been processed |
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172 * @param none |
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173 * @return none |
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174 */ |
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175 void MdvpoStreamEnd(); |
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176 |
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177 /** |
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178 * Returns used videopicture |
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179 * @param aPicture Video picture |
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180 * @return none |
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181 */ |
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182 void ReturnPicture(TVideoPicture* aPicture); |
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183 |
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184 /** |
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185 * Starts decoding |
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186 * @param none |
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187 * @return none |
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188 */ |
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189 void StartL(); |
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190 |
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191 /** |
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192 * Stops decoding synchronously |
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193 * @param none |
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194 * @return none |
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195 */ |
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196 void StopL(); |
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197 |
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198 /** |
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199 * Stops decoding asynchronously |
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200 * @param none |
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201 * @return none |
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202 */ |
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203 void AsyncStopL(); |
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204 |
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205 /** |
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206 * Pauses decoding |
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207 * @param none |
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208 * @return none |
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209 */ |
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210 void Pause(); |
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211 |
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212 /** |
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213 * Resumes decoding |
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214 * @param none |
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215 * @return none |
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216 */ |
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217 void ResumeL(); |
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218 |
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219 /** |
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220 * Checks codec info |
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221 * @param aUid Decoder Uid |
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222 * @return TBool ETrue - accelerated codec; EFalse - non-accelerated codec |
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223 */ |
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224 TBool CheckCodecInfoL(TUid aUid); |
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225 |
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226 /** |
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227 * Initialize decoder client |
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228 * @param none |
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229 * @return none |
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230 */ |
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231 void InitializeL(); |
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232 |
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233 /** |
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234 * Select decoder |
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235 * @param none |
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236 * @return none |
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237 */ |
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238 void SelectDecoderL(); |
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239 |
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240 /** |
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241 * Send buffer |
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242 * @param aBuffer Media buffer |
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243 * @return none |
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244 */ |
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245 void SendBufferL(CCMRMediaBuffer* aBuffer); |
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246 |
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247 /** |
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248 * Write coded buffer |
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249 * @param aBuffer Media buffer |
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250 * @return none |
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251 */ |
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252 void WriteCodedBufferL(CCMRMediaBuffer* aBuffer); |
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253 |
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254 /** |
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255 * Returns a time estimate on long it takes to decode one frame with the current settings |
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256 * @param aInput Input video format |
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257 * @param aCodecType EH263 or EMpeg4 |
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258 * @return TReal time estimate in seconds |
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259 */ |
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260 TReal EstimateDecodeFrameTimeL(const TTRVideoFormat& aInput, TInt aCodecType); |
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261 |
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262 /** |
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263 * Checks if decoder supports scaling and enables scaling if supported. |
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264 * Disables scaling if aInputSize is equal to aOutputSize or scaling is not supported. |
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265 * @param aInputSize Source picture size |
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266 * @param aOutputSize Decoded picture size |
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267 * @return TBool ETrue if scaling is supported, EFalse otherwise |
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268 */ |
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269 TBool SetDecoderScaling(TSize& aInputSize, TSize& aOutputSize); |
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270 |
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271 /** |
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272 * Enable / Disable resource observer |
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273 * @param aEnable ETrue: Observer is enabled, EFalse observer is disabled |
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274 * @return none |
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275 */ |
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276 void EnableResourceObserver(TBool aEnable); |
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277 |
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278 /** |
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279 * From MMmfVideoResourceObserver. Indicates that a media device has lost its resources |
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280 * @param aMediaDevice UID for the media device that lost resources |
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281 * @return none |
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282 */ |
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283 void MmvroResourcesLost(TUid aMediaDevice); |
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284 |
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285 /** |
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286 * From MMmfVideoResourceObserver. Indicates that a media device has regained its resources |
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287 * @param aMediaDevice UID for the media device that regained resources |
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288 * @return none |
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289 */ |
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290 void MmvroResourcesRestored(TUid aMediaDevice); |
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291 |
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292 private: |
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293 /** |
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294 * C++ default constructor. |
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295 */ |
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296 CTRVideoDecoderClient(MTRDevVideoClientObserver& aObserver); |
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297 |
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298 /** |
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299 * Symbian 2nd phase constructor, can leave |
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300 */ |
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301 void ConstructL(); |
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302 |
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303 private: |
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304 // Observer |
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305 MTRDevVideoClientObserver& iObserver; |
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306 |
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307 // DevVideoPlay |
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308 CMMFDevVideoPlay* iDevVideoPlay; |
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309 |
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310 // Decoder mime type |
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311 TBuf8<256> iMimeType; |
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312 |
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313 // Short version mime type |
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314 TBuf8<256> iShortMimeType; |
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315 |
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316 // Uncompressed format |
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317 TUncompressedVideoFormat iUncompressedFormat; |
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318 |
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319 // Compressed format |
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320 CCompressedVideoFormat* iCompresedFormat; |
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321 |
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322 // HwDevice Uid |
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323 THwDeviceId iHwDeviceId; |
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324 |
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325 // Video coded input buffer |
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326 TVideoInputBuffer* iInputBuffer; |
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327 |
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328 // Decoded picture |
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329 TVideoPicture* iDecodedPicture; |
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330 |
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331 // Uid of the selected codec |
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332 TUid iUid; |
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333 |
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334 // Fallback codec to use if the first one doesn't work |
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335 TUid iFallbackUid; |
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336 |
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337 // Coded buffer |
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338 CCMRMediaBuffer* iCodedBuffer; |
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339 |
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340 // Codec type |
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341 TInt iCodecType; |
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342 |
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343 // Codec level |
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344 TInt iCodecLevel; |
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345 |
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346 // Buffer options |
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347 CMMFDevVideoPlay::TBufferOptions iBufferOptions; |
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348 |
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349 // Fatal error code |
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350 TInt iFatalError; |
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351 |
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352 // Input format |
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353 TTRVideoFormat iInputFormat; |
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354 |
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355 // Output format |
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356 TTRVideoFormat iOutputFormat; |
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357 |
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358 // Data unit type |
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359 TVideoDataUnitType iDataUnitType; |
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360 |
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361 // Stop |
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362 TBool iStop; |
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363 |
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364 // Pause |
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365 TBool iPause; |
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366 |
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367 // Last ts |
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368 TTimeIntervalMicroSeconds iLastTimestamp; |
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369 |
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370 // If selected decoder is accelerated or not |
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371 TBool iAcceleratedCodecSelected; |
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372 |
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373 // If scaling is used or not |
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374 TBool iScalingInUse; |
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375 |
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376 // Decoded picture size if scaling is used |
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377 TSize iScaledOutputSize; |
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378 |
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379 // If deblocking should be used when scaling |
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380 TBool iScalingWithDeblocking; |
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381 |
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382 // Video resource handler custom interface |
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383 MMmfVideoResourceHandler* iVideoResourceHandlerCI; |
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384 }; |
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385 |
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386 |
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387 |
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388 #endif // CTRVIDEODECODERCLIENT_H |