1 /* 2 * Copyright (C) 2011 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef SOFT_OMX_COMPONENT_H_ 18 19 #define SOFT_OMX_COMPONENT_H_ 20 21 #include <media/stagefright/foundation/ABase.h> 22 #include <media/stagefright/foundation/AString.h> 23 #include <utils/RefBase.h> 24 25 #include <OMX_Component.h> 26 27 namespace android { 28 29 struct SoftOMXComponent : public RefBase { 30 SoftOMXComponent( 31 const char *name, 32 const OMX_CALLBACKTYPE *callbacks, 33 OMX_PTR appData, 34 OMX_COMPONENTTYPE **component); 35 36 virtual OMX_ERRORTYPE initCheck() const; 37 38 void setLibHandle(void *libHandle); 39 void *libHandle() const; 40 41 virtual void prepareForDestruction() {} 42 43 protected: 44 virtual ~SoftOMXComponent(); 45 46 const char *name() const; 47 48 void notify( 49 OMX_EVENTTYPE event, 50 OMX_U32 data1, OMX_U32 data2, OMX_PTR data); 51 52 void notifyEmptyBufferDone(OMX_BUFFERHEADERTYPE *header); 53 void notifyFillBufferDone(OMX_BUFFERHEADERTYPE *header); 54 55 virtual OMX_ERRORTYPE sendCommand( 56 OMX_COMMANDTYPE cmd, OMX_U32 param, OMX_PTR data); 57 58 virtual OMX_ERRORTYPE getParameter( 59 OMX_INDEXTYPE index, OMX_PTR params); 60 61 virtual OMX_ERRORTYPE setParameter( 62 OMX_INDEXTYPE index, const OMX_PTR params); 63 64 virtual OMX_ERRORTYPE getConfig( 65 OMX_INDEXTYPE index, OMX_PTR params); 66 67 virtual OMX_ERRORTYPE setConfig( 68 OMX_INDEXTYPE index, const OMX_PTR params); 69 70 virtual OMX_ERRORTYPE getExtensionIndex( 71 const char *name, OMX_INDEXTYPE *index); 72 73 virtual OMX_ERRORTYPE useBuffer( 74 OMX_BUFFERHEADERTYPE **buffer, 75 OMX_U32 portIndex, 76 OMX_PTR appPrivate, 77 OMX_U32 size, 78 OMX_U8 *ptr); 79 80 virtual OMX_ERRORTYPE allocateBuffer( 81 OMX_BUFFERHEADERTYPE **buffer, 82 OMX_U32 portIndex, 83 OMX_PTR appPrivate, 84 OMX_U32 size); 85 86 virtual OMX_ERRORTYPE freeBuffer( 87 OMX_U32 portIndex, 88 OMX_BUFFERHEADERTYPE *buffer); 89 90 virtual OMX_ERRORTYPE emptyThisBuffer( 91 OMX_BUFFERHEADERTYPE *buffer); 92 93 virtual OMX_ERRORTYPE fillThisBuffer( 94 OMX_BUFFERHEADERTYPE *buffer); 95 96 virtual OMX_ERRORTYPE getState(OMX_STATETYPE *state); 97 98 private: 99 AString mName; 100 const OMX_CALLBACKTYPE *mCallbacks; 101 OMX_COMPONENTTYPE *mComponent; 102 103 void *mLibHandle; 104 105 static OMX_ERRORTYPE SendCommandWrapper( 106 OMX_HANDLETYPE component, 107 OMX_COMMANDTYPE cmd, 108 OMX_U32 param, 109 OMX_PTR data); 110 111 static OMX_ERRORTYPE GetParameterWrapper( 112 OMX_HANDLETYPE component, 113 OMX_INDEXTYPE index, 114 OMX_PTR params); 115 116 static OMX_ERRORTYPE SetParameterWrapper( 117 OMX_HANDLETYPE component, 118 OMX_INDEXTYPE index, 119 OMX_PTR params); 120 121 static OMX_ERRORTYPE GetConfigWrapper( 122 OMX_HANDLETYPE component, 123 OMX_INDEXTYPE index, 124 OMX_PTR params); 125 126 static OMX_ERRORTYPE SetConfigWrapper( 127 OMX_HANDLETYPE component, 128 OMX_INDEXTYPE index, 129 OMX_PTR params); 130 131 static OMX_ERRORTYPE GetExtensionIndexWrapper( 132 OMX_HANDLETYPE component, 133 OMX_STRING name, 134 OMX_INDEXTYPE *index); 135 136 static OMX_ERRORTYPE UseBufferWrapper( 137 OMX_HANDLETYPE component, 138 OMX_BUFFERHEADERTYPE **buffer, 139 OMX_U32 portIndex, 140 OMX_PTR appPrivate, 141 OMX_U32 size, 142 OMX_U8 *ptr); 143 144 static OMX_ERRORTYPE AllocateBufferWrapper( 145 OMX_HANDLETYPE component, 146 OMX_BUFFERHEADERTYPE **buffer, 147 OMX_U32 portIndex, 148 OMX_PTR appPrivate, 149 OMX_U32 size); 150 151 static OMX_ERRORTYPE FreeBufferWrapper( 152 OMX_HANDLETYPE component, 153 OMX_U32 portIndex, 154 OMX_BUFFERHEADERTYPE *buffer); 155 156 static OMX_ERRORTYPE EmptyThisBufferWrapper( 157 OMX_HANDLETYPE component, 158 OMX_BUFFERHEADERTYPE *buffer); 159 160 static OMX_ERRORTYPE FillThisBufferWrapper( 161 OMX_HANDLETYPE component, 162 OMX_BUFFERHEADERTYPE *buffer); 163 164 static OMX_ERRORTYPE GetStateWrapper( 165 OMX_HANDLETYPE component, 166 OMX_STATETYPE *state); 167 168 DISALLOW_EVIL_CONSTRUCTORS(SoftOMXComponent); 169 }; 170 171 template<typename T> 172 bool isValidOMXParam(T *a) { 173 static_assert(offsetof(typeof(*a), nSize) == 0, "nSize not at offset 0"); 174 static_assert(std::is_same< decltype(a->nSize), OMX_U32>::value, "nSize has wrong type"); 175 static_assert(offsetof(typeof(*a), nVersion) == 4, "nVersion not at offset 4"); 176 static_assert(std::is_same< decltype(a->nVersion), OMX_VERSIONTYPE>::value, 177 "nVersion has wrong type"); 178 179 if (a->nSize < sizeof(*a)) { 180 ALOGE("b/27207275: need %zu, got %u", sizeof(*a), a->nSize); 181 android_errorWriteLog(0x534e4554, "27207275"); 182 return false; 183 } 184 return true; 185 } 186 187 } // namespace android 188 189 #endif // SOFT_OMX_COMPONENT_H_ 190
