|
1 /* |
|
2 * Copyright (c) 2009 Aricent and/or its subsidiary(-ies). |
|
3 * All rights reserved. |
|
4 * This component and the accompanying materials are made available |
|
5 * under the terms of the License "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 * Aricent - initial contribution. |
|
11 * |
|
12 * Contributors: |
|
13 * |
|
14 * Description: |
|
15 * Header file to the Mpeg4Asp Decoder wrapper Implementation. |
|
16 * |
|
17 */ |
|
18 |
|
19 #ifndef ARIMPEG4ASPDECWRAPPER_H |
|
20 #define ARIMPEG4ASPDECWRAPPER_H |
|
21 |
|
22 //System includes |
|
23 #include <e32def.h> |
|
24 #include <e32base.h> |
|
25 #include <devvideoconstants.h> |
|
26 |
|
27 //User includes |
|
28 #include "aribasecodec.h" |
|
29 #include "ariprint.h" |
|
30 |
|
31 const TInt KMaxFrameWidth = 640;//should be 1280 for enabling 720P decoding; |
|
32 const TInt KMaxFrameHeight = 480;//should be 720 for enabling 720P decoding; |
|
33 |
|
34 // FORWARD DECLARATIONS |
|
35 class TUncompressedVideoFormat; |
|
36 class TVideoInputBuffer; |
|
37 class TVideoPictureHeader; |
|
38 |
|
39 /** |
|
40 * Class MCodecObserver |
|
41 * whenever a new configuration information finds in the file, ti should |
|
42 * be informated to the hwdevice. so that it will delete the existing |
|
43 * codec object and wil create a new object and configures the codec with |
|
44 * the new configuration information. |
|
45 */ |
|
46 |
|
47 class MCodecObserver |
|
48 { |
|
49 public: |
|
50 /** |
|
51 * Callback to inform the HW device when there is new config. |
|
52 * @return "None" |
|
53 */ |
|
54 virtual void NewConfigFound()=0; |
|
55 |
|
56 /** |
|
57 * Callback to inform the HW device when there is new config. |
|
58 * @return "None" |
|
59 */ |
|
60 virtual void EInputConsumed()=0; |
|
61 }; |
|
62 /** |
|
63 * Class CCodecInterface |
|
64 * This class is base class whish is part of Aricent's Mpeg4 ASP/H263 decoder wrapper |
|
65 * used by the Mpeg4 ASP/H263. This HwDevice Plugin to decode Mpeg4 ASP/H263 content to |
|
66 * yuv420. |
|
67 * |
|
68 */ |
|
69 class CAriMpeg4aspdecWrapper: public MBaseCodec, public CBase |
|
70 { |
|
71 public:// Constructor and Destructor |
|
72 |
|
73 /** |
|
74 * Two-phased constructor. |
|
75 * @return pointer to an instance of CAriMpeg4aspdecWrapper |
|
76 */ |
|
77 IMPORT_C static CAriMpeg4aspdecWrapper* NewL( |
|
78 MCodecObserver* aObserver ); |
|
79 |
|
80 /** |
|
81 * Destructor |
|
82 */ |
|
83 virtual ~CAriMpeg4aspdecWrapper(); |
|
84 |
|
85 |
|
86 public:// MBaseCodec functions |
|
87 |
|
88 /** |
|
89 * Retrieves a custom interface to the specified hardware device |
|
90 |
|
91 * @param aInpBuf Coded input data passed by Engine. |
|
92 * @param aOutBuf Decoded output data. |
|
93 |
|
94 * @leave "The method will leave if an error occurs". |
|
95 |
|
96 * @return one of the TCodecState |
|
97 */ |
|
98 virtual TInt DoProcessL( TAny *aInpBuf, TAny* aOutBuf = NULL ) = 0; |
|
99 |
|
100 /** |
|
101 * Resets the Decoder |
|
102 * @return None |
|
103 */ |
|
104 virtual void Reset() = 0; |
|
105 |
|
106 public: // New Functions |
|
107 /** |
|
108 * Common API to set the values to the decoder. |
|
109 * @param aCommand indicates the action to do. |
|
110 * @param aCmdData Any input data required |
|
111 |
|
112 * @leave "The method will leave if an error occurs". |
|
113 */ |
|
114 virtual TInt SetParam( TInt aCommand, TAny* aCmdData ) = 0; |
|
115 |
|
116 /** |
|
117 * Common API to get the values to the decoder. |
|
118 * @param aCommand indicates the action to do. |
|
119 * @param aCmdData Any output data required |
|
120 |
|
121 * @leave "The method will leave if an error occurs". |
|
122 */ |
|
123 virtual TInt GetParam( TInt aCommand, TAny* aCmdData ) = 0; |
|
124 /** |
|
125 * Returns the stream information and creates the decoder |
|
126 * @param aInpBuf Coded input data. |
|
127 * @param aOutBuf Decoded output data. |
|
128 |
|
129 * @leave The method will leave if an error occurs. |
|
130 */ |
|
131 virtual void SetFormatsL( TVideoDataUnitType &aInputFormat, |
|
132 TUncompressedVideoFormat &aOutputFormat ) = 0; |
|
133 |
|
134 /** |
|
135 * Configure the decoder using the stream passed |
|
136 * @param aInpBuf Coded input data. |
|
137 |
|
138 * @leave The method will leave if an error occurs. |
|
139 */ |
|
140 virtual void ConfigDecoderL( const TDesC8* aInpBuf ) = 0; |
|
141 |
|
142 /** |
|
143 * Returns the length of the ouput frame |
|
144 * @return |
|
145 |
|
146 * @leave The method will leave if an error occurs. |
|
147 */ |
|
148 virtual TInt GetOutputBufferLength() = 0; |
|
149 |
|
150 /** |
|
151 * Gets the slice loss information |
|
152 * @param aFirstMacroBlock |
|
153 * @param aNumMacroBlocks |
|
154 */ |
|
155 virtual void GetSliceLossInfo( TUint& aFirstMacroblock, |
|
156 TUint& aNumMacroblocks ) = 0; |
|
157 |
|
158 /** |
|
159 * Gets the picture Loss Information |
|
160 * @return percentage value |
|
161 */ |
|
162 virtual TUint GetPictureLossInfo() = 0; |
|
163 |
|
164 /** |
|
165 * Gets the Last frame |
|
166 * @return none |
|
167 */ |
|
168 virtual TInt GetLastFrame( TAny* aOutput ) = 0; |
|
169 |
|
170 /** |
|
171 * Gets the header info |
|
172 * @param aDataUnit Input stream data. |
|
173 * @param aHeaderPtr Output header information returned. |
|
174 |
|
175 * @leave The method will leave if an error occurs |
|
176 KErrArgument - input data is null or zero length |
|
177 KErrCorrupt - input stream is corrupt |
|
178 KErrUnderflow - input stream is insufficient. |
|
179 */ |
|
180 IMPORT_C |
|
181 static void GetHeaderInfoL( TVideoInputBuffer& aDataUnit, |
|
182 TVideoPictureHeader& aHeaderPtr ); |
|
183 }; |
|
184 |
|
185 #endif //ARIMPEG4ASPDECWRAPPER_H |