Initial contribution from Sony Corporation.
Add DRM Framework to support DRM content playback
together with StageFright.
- DRM Framework code is added
- include/drm
- drm
- api/current.xml is updated to include DRM Framework Java APIs
- cmds/servicemanager/service_manager.c is modified
to add drmManager and drmIOService.
Change-Id: I6d7bc9c7067362b500e530988a9ce241761866fb
diff --git a/drm/libdrmframework/include/PlugInManager.h b/drm/libdrmframework/include/PlugInManager.h
new file mode 100644
index 0000000..9ad195f
--- /dev/null
+++ b/drm/libdrmframework/include/PlugInManager.h
@@ -0,0 +1,273 @@
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef __PLUGIN_MANAGER_H__
+#define __PLUGIN_MANAGER_H__
+
+#include <dlfcn.h>
+#include <sys/types.h>
+#include <dirent.h>
+
+#include <utils/String8.h>
+#include <utils/Vector.h>
+#include <utils/KeyedVector.h>
+
+namespace android {
+
+const char* const PLUGIN_MANAGER_CREATE = "create";
+const char* const PLUGIN_MANAGER_DESTROY = "destroy";
+const char* const PLUGIN_EXTENSION = ".so";
+
+/**
+ * This is the template class for Plugin manager.
+ *
+ * The DrmManager uses this class to handle the plugins.
+ *
+ */
+template<typename Type>
+class TPlugInManager {
+private:
+ typedef void* HANDLE;
+ typedef Type* create_t(void);
+ typedef void destroy_t(Type*);
+ typedef create_t* FPCREATE;
+ typedef destroy_t* FPDESTORY;
+
+ typedef struct _PlugInContainer {
+ String8 sPath;
+ HANDLE hHandle;
+ FPCREATE fpCreate;
+ FPDESTORY fpDestory;
+ Type* pInstance;
+
+ _PlugInContainer():
+ sPath("")
+ ,hHandle(NULL)
+ ,fpCreate(NULL)
+ ,fpDestory(NULL)
+ ,pInstance(NULL)
+ {}
+ } PlugInContainer;
+
+ typedef KeyedVector<String8, PlugInContainer*> PlugInMap;
+ PlugInMap m_plugInMap;
+
+ typedef Vector<String8> PlugInIdList;
+ PlugInIdList m_plugInIdList;
+
+public:
+ /**
+ * Load all the plug-ins in the specified directory
+ *
+ * @param[in] rsPlugInDirPath
+ * Directory path which plug-ins (dynamic library) are stored
+ * @note Plug-ins should be implemented according to the specification
+ */
+ void loadPlugIns(const String8& rsPlugInDirPath) {
+ Vector<String8> plugInFileList = getPlugInPathList(rsPlugInDirPath);
+
+ if (!plugInFileList.isEmpty()) {
+ for (unsigned int i = 0; i < plugInFileList.size(); ++i) {
+ loadPlugIn(plugInFileList[i]);
+ }
+ }
+ }
+
+ /**
+ * Unload all the plug-ins
+ *
+ */
+ void unloadPlugIns() {
+ for (unsigned int i = 0; i < m_plugInIdList.size(); ++i) {
+ unloadPlugIn(m_plugInIdList[i]);
+ }
+ m_plugInIdList.clear();
+ }
+
+ /**
+ * Get all the IDs of available plug-ins
+ *
+ * @return[in] plugInIdList
+ * String type Vector in which all plug-in IDs are stored
+ */
+ Vector<String8> getPlugInIdList() const {
+ return m_plugInIdList;
+ }
+
+ /**
+ * Get a plug-in reference of specified ID
+ *
+ * @param[in] rsPlugInId
+ * Plug-in ID to be used
+ * @return plugIn
+ * Reference of specified plug-in instance
+ */
+ Type& getPlugIn(const String8& rsPlugInId) {
+ if (!contains(rsPlugInId)) {
+ // This error case never happens
+ }
+ return *(m_plugInMap.valueFor(rsPlugInId)->pInstance);
+ }
+
+public:
+ /**
+ * Load a plug-in stored in the specified path
+ *
+ * @param[in] rsPlugInPath
+ * Plug-in (dynamic library) file path
+ * @note Plug-in should be implemented according to the specification
+ */
+ void loadPlugIn(const String8& rsPlugInPath) {
+ if (contains(rsPlugInPath)) {
+ return;
+ }
+
+ PlugInContainer* pPlugInContainer = new PlugInContainer();
+
+ pPlugInContainer->hHandle = dlopen(rsPlugInPath.string(), RTLD_LAZY);
+
+ if (NULL == pPlugInContainer->hHandle) {
+ delete pPlugInContainer;
+ pPlugInContainer = NULL;
+ return;
+ }
+
+ pPlugInContainer->sPath = rsPlugInPath;
+ pPlugInContainer->fpCreate
+ = (FPCREATE)dlsym(pPlugInContainer->hHandle, PLUGIN_MANAGER_CREATE);
+ pPlugInContainer->fpDestory
+ = (FPDESTORY)dlsym(pPlugInContainer->hHandle, PLUGIN_MANAGER_DESTROY);
+
+ if (NULL != pPlugInContainer->fpCreate && NULL != pPlugInContainer->fpDestory) {
+ pPlugInContainer->pInstance = (Type*)pPlugInContainer->fpCreate();
+ m_plugInIdList.add(rsPlugInPath);
+ m_plugInMap.add(rsPlugInPath, pPlugInContainer);
+ } else {
+ dlclose(pPlugInContainer->hHandle);
+ delete pPlugInContainer;
+ pPlugInContainer = NULL;
+ return;
+ }
+ }
+
+ /**
+ * Unload a plug-in stored in the specified path
+ *
+ * @param[in] rsPlugInPath
+ * Plug-in (dynamic library) file path
+ */
+ void unloadPlugIn(const String8& rsPlugInPath) {
+ if (!contains(rsPlugInPath)) {
+ return;
+ }
+
+ PlugInContainer* pPlugInContainer = m_plugInMap.valueFor(rsPlugInPath);
+ pPlugInContainer->fpDestory(pPlugInContainer->pInstance);
+ dlclose(pPlugInContainer->hHandle);
+
+ m_plugInMap.removeItem(rsPlugInPath);
+ delete pPlugInContainer;
+ pPlugInContainer = NULL;
+ }
+
+private:
+ /**
+ * True if TPlugInManager contains rsPlugInId
+ */
+ bool contains(const String8& rsPlugInId) {
+ return m_plugInMap.indexOfKey(rsPlugInId) != NAME_NOT_FOUND;
+ }
+
+ /**
+ * Return file path list of plug-ins stored in the specified directory
+ *
+ * @param[in] rsDirPath
+ * Directory path in which plug-ins are stored
+ * @return plugInFileList
+ * String type Vector in which file path of plug-ins are stored
+ */
+ Vector<String8> getPlugInPathList(const String8& rsDirPath) {
+ Vector<String8> fileList;
+ DIR* pDir = opendir(rsDirPath.string());
+ struct dirent* pEntry = new dirent();
+
+ while (NULL != pDir && NULL != (pEntry = readdir(pDir))) {
+ if (!isPlugIn(pEntry)) {
+ continue;
+ }
+ String8 plugInPath;
+ plugInPath += rsDirPath;
+ plugInPath += "/";
+ plugInPath += pEntry->d_name;
+
+ fileList.add(plugInPath);
+ }
+
+ if (NULL != pDir) {
+ closedir(pDir);
+ }
+ delete pEntry;
+ pEntry = NULL;
+
+ return fileList;
+ }
+
+ /**
+ * True if the input name denotes plug-in
+ */
+ bool isPlugIn(const struct dirent* pEntry) const {
+ String8 sName(pEntry->d_name);
+ int extentionPos = sName.size() - String8(PLUGIN_EXTENSION).size();
+ if (extentionPos < 0) {
+ return false;
+ }
+ return extentionPos == (int)sName.find(PLUGIN_EXTENSION);
+ }
+
+ /**
+ * True if the input entry is "." or ".."
+ */
+ bool isDotOrDDot(const struct dirent* pEntry) const {
+ String8 sName(pEntry->d_name);
+ return "." == sName || ".." == sName;
+ }
+
+ /**
+ * True if input entry is directory
+ */
+ bool isDirectory(const struct dirent* pEntry) const {
+ return DT_DIR == pEntry->d_type;
+ }
+
+ /**
+ * True if input entry is regular file
+ */
+ bool isRegularFile(const struct dirent* pEntry) const {
+ return DT_REG == pEntry->d_type;
+ }
+
+ /**
+ * True if input entry is link
+ */
+ bool isLink(const struct dirent* pEntry) const {
+ return DT_LNK == pEntry->d_type;
+ }
+};
+
+};
+
+#endif /* __PLUGIN_MANAGER_H__ */
+