1/* 2 * Copyright (C) 2009 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#include "QComOMXPlugin.h" 18 19#include <dlfcn.h> 20 21#include <media/hardware/HardwareAPI.h> 22 23namespace android { 24 25OMXPluginBase *createOMXPlugin() { 26 return new QComOMXPlugin; 27} 28 29QComOMXPlugin::QComOMXPlugin() 30 : mLibHandle(dlopen("libOmxCore.so", RTLD_NOW)), 31 mInit(NULL), 32 mDeinit(NULL), 33 mComponentNameEnum(NULL), 34 mGetHandle(NULL), 35 mFreeHandle(NULL), 36 mGetRolesOfComponentHandle(NULL) { 37 if (mLibHandle != NULL) { 38 mInit = (InitFunc)dlsym(mLibHandle, "OMX_Init"); 39 mDeinit = (DeinitFunc)dlsym(mLibHandle, "OMX_Deinit"); 40 41 mComponentNameEnum = 42 (ComponentNameEnumFunc)dlsym(mLibHandle, "OMX_ComponentNameEnum"); 43 44 mGetHandle = (GetHandleFunc)dlsym(mLibHandle, "OMX_GetHandle"); 45 mFreeHandle = (FreeHandleFunc)dlsym(mLibHandle, "OMX_FreeHandle"); 46 47 mGetRolesOfComponentHandle = 48 (GetRolesOfComponentFunc)dlsym( 49 mLibHandle, "OMX_GetRolesOfComponent"); 50 51 (*mInit)(); 52 } 53} 54 55QComOMXPlugin::~QComOMXPlugin() { 56 if (mLibHandle != NULL) { 57 (*mDeinit)(); 58 59 dlclose(mLibHandle); 60 mLibHandle = NULL; 61 } 62} 63 64OMX_ERRORTYPE QComOMXPlugin::makeComponentInstance( 65 const char *name, 66 const OMX_CALLBACKTYPE *callbacks, 67 OMX_PTR appData, 68 OMX_COMPONENTTYPE **component) { 69 if (mLibHandle == NULL) { 70 return OMX_ErrorUndefined; 71 } 72 73 return (*mGetHandle)( 74 reinterpret_cast<OMX_HANDLETYPE *>(component), 75 const_cast<char *>(name), 76 appData, const_cast<OMX_CALLBACKTYPE *>(callbacks)); 77} 78 79OMX_ERRORTYPE QComOMXPlugin::destroyComponentInstance( 80 OMX_COMPONENTTYPE *component) { 81 if (mLibHandle == NULL) { 82 return OMX_ErrorUndefined; 83 } 84 85 return (*mFreeHandle)(reinterpret_cast<OMX_HANDLETYPE *>(component)); 86} 87 88OMX_ERRORTYPE QComOMXPlugin::enumerateComponents( 89 OMX_STRING name, 90 size_t size, 91 OMX_U32 index) { 92 if (mLibHandle == NULL) { 93 return OMX_ErrorUndefined; 94 } 95 96 return (*mComponentNameEnum)(name, size, index); 97} 98 99OMX_ERRORTYPE QComOMXPlugin::getRolesOfComponent( 100 const char *name, 101 Vector<String8> *roles) { 102 roles->clear(); 103 104 if (mLibHandle == NULL) { 105 return OMX_ErrorUndefined; 106 } 107 108 OMX_U32 numRoles; 109 OMX_ERRORTYPE err = (*mGetRolesOfComponentHandle)( 110 const_cast<OMX_STRING>(name), &numRoles, NULL); 111 112 if (err != OMX_ErrorNone) { 113 return err; 114 } 115 116 if (numRoles > 0) { 117 OMX_U8 **array = new OMX_U8 *[numRoles]; 118 for (OMX_U32 i = 0; i < numRoles; ++i) { 119 array[i] = new OMX_U8[OMX_MAX_STRINGNAME_SIZE]; 120 } 121 122 OMX_U32 numRoles2; 123 err = (*mGetRolesOfComponentHandle)( 124 const_cast<OMX_STRING>(name), &numRoles2, array); 125 126 if (err != OMX_ErrorNone) { 127 return err; 128 } 129 130 if (numRoles2 != numRoles) { 131 return err; 132 } 133 134 for (OMX_U32 i = 0; i < numRoles; ++i) { 135 String8 s((const char *)array[i]); 136 roles->push(s); 137 138 delete[] array[i]; 139 array[i] = NULL; 140 } 141 142 delete[] array; 143 array = NULL; 144 } 145 146 return OMX_ErrorNone; 147} 148 149} // namespace android 150