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      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 #ifndef OMX_MASTER_H_
     18 
     19 #define OMX_MASTER_H_
     20 
     21 #include <OMXPluginBase.h>
     22 
     23 #include <utils/threads.h>
     24 #include <utils/KeyedVector.h>
     25 #include <utils/List.h>
     26 #include <utils/String8.h>
     27 
     28 namespace android {
     29 
     30 struct OMXMaster : public OMXPluginBase {
     31     OMXMaster();
     32     virtual ~OMXMaster();
     33 
     34     virtual OMX_ERRORTYPE makeComponentInstance(
     35             const char *name,
     36             const OMX_CALLBACKTYPE *callbacks,
     37             OMX_PTR appData,
     38             OMX_COMPONENTTYPE **component);
     39 
     40     virtual OMX_ERRORTYPE destroyComponentInstance(
     41             OMX_COMPONENTTYPE *component);
     42 
     43     virtual OMX_ERRORTYPE enumerateComponents(
     44             OMX_STRING name,
     45             size_t size,
     46             OMX_U32 index);
     47 
     48     virtual OMX_ERRORTYPE getRolesOfComponent(
     49             const char *name,
     50             Vector<String8> *roles);
     51 
     52 private:
     53     Mutex mLock;
     54     List<OMXPluginBase *> mPlugins;
     55     KeyedVector<String8, OMXPluginBase *> mPluginByComponentName;
     56     KeyedVector<OMX_COMPONENTTYPE *, OMXPluginBase *> mPluginByInstance;
     57 
     58     void *mVendorLibHandle;
     59 
     60     void addVendorPlugin();
     61     void addPlugin(const char *libname);
     62     void addPlugin(OMXPluginBase *plugin);
     63     void clearPlugins();
     64 
     65     OMXMaster(const OMXMaster &);
     66     OMXMaster &operator=(const OMXMaster &);
     67 };
     68 
     69 }  // namespace android
     70 
     71 #endif  // OMX_MASTER_H_
     72