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

1 files changed, 183 insertions, 0 deletions

diff --git a/include/drm/DrmConstraints.h b/include/drm/DrmConstraints.h
new file mode 100644
index 0000000..a9ec942
--- /dev/null
+++ b/include/drm/DrmConstraints.h
@@ -0,0 +1,183 @@
+/*
+ * 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 __DRM_CONSTRAINTS_H__
+#define __DRM_CONSTRAINTS_H__
+
+#include "drm_framework_common.h"
+
+namespace android {
+
+/**
+ * This is an utility class which contains the constraints information.
+ *
+ * As a result of DrmManagerClient::getConstraints(const String8*, const int)
+ * an instance of DrmConstraints would be returned.
+ *
+ */
+class DrmConstraints {
+public:
+    /**
+     * The following variables are replica of android.drm.DrmStore.ConstraintsColumns
+     * Any changes should also be incorporated with Java Layer as well
+     */
+    /**
+     * The max repeat count
+     */
+    static const String8 MAX_REPEAT_COUNT;
+    /**
+     * The remaining repeat count
+     */
+    static const String8 REMAINING_REPEAT_COUNT;
+
+    /**
+     * The time before which the protected file can not be played/viewed
+     */
+    static const String8 LICENSE_START_TIME;
+
+    /**
+     * The time after which the protected file can not be played/viewed
+     */
+    static const String8 LICENSE_EXPIRY_TIME;
+
+    /**
+     * The available time for license
+     */
+    static const String8 LICENSE_AVAILABLE_TIME;
+
+    /**
+     * The data stream for extended metadata
+     */
+    static const String8 EXTENDED_METADATA;
+
+public:
+    /**
+     * Iterator for key
+     */
+    class KeyIterator {
+        friend class DrmConstraints;
+    private:
+        KeyIterator(DrmConstraints* drmConstraints)
+            : mDrmConstraints(drmConstraints), mIndex(0) {}
+
+    public:
+        KeyIterator(const KeyIterator& keyIterator);
+        KeyIterator& operator=(const KeyIterator& keyIterator);
+        virtual ~KeyIterator() {}
+
+    public:
+        bool hasNext();
+        const String8& next();
+
+    private:
+        DrmConstraints* mDrmConstraints;
+        unsigned int mIndex;
+    };
+
+    /**
+     * Iterator for constraints
+     */
+    class Iterator {
+        friend class DrmConstraints;
+    private:
+        Iterator(DrmConstraints* drmConstraints)
+            : mDrmConstraints(drmConstraints), mIndex(0) {}
+
+    public:
+        Iterator(const Iterator& iterator);
+        Iterator& operator=(const Iterator& iterator);
+        virtual ~Iterator() {}
+
+    public:
+        bool hasNext();
+        String8 next();
+
+    private:
+        DrmConstraints* mDrmConstraints;
+        unsigned int mIndex;
+    };
+
+public:
+    DrmConstraints() {}
+    virtual ~DrmConstraints() {
+        DrmConstraints::KeyIterator keyIt = this->keyIterator();
+
+        while (keyIt.hasNext()) {
+            String8 key = keyIt.next();
+                const char* value = this->getAsByteArray(&key);
+                if (NULL != value) {
+                    delete[] value;
+                    value = NULL;
+                }
+        }
+        mConstraintMap.clear();
+    }
+public:
+    /**
+     * Returns the number of constraints contained in this instance
+     *
+     * @return Number of constraints
+     */
+    int getCount(void) const;
+
+    /**
+     * Adds constraint information as <key, value> pair to this instance
+     *
+     * @param[in] key Key to add
+     * @param[in] value Value to add
+     * @return Returns DRM_NO_ERROR for success, DRM_ERROR_UNKNOWN for failure
+     */
+    status_t put(const String8* key, const char* value);
+
+    /**
+     * Retrieves the value of given key
+     *
+     * @param key Key whose value to be retrieved
+     * @return The value
+     */
+    String8 get(const String8& key) const;
+
+     /**
+     * Retrieves the value as byte array of given key
+     * @param key Key whose value to be retrieved as byte array
+     * @return The byte array value
+     */
+    const char* getAsByteArray(const String8* key) const;
+
+    /**
+     * Returns KeyIterator object to walk through the keys associated with this instance
+     *
+     * @return KeyIterator object
+     */
+    KeyIterator keyIterator();
+
+    /**
+     * Returns Iterator object to walk through the values associated with this instance
+     *
+     * @return Iterator object
+     */
+    Iterator iterator();
+private:
+    const char* getValue(const String8* key) const;
+private:
+    typedef KeyedVector<String8, const char*> DrmConstraintsMap;
+    DrmConstraintsMap mConstraintMap;
+};
+
+};
+
+#endif /* __DRM_CONSTRAINTS_H__ */
+