1 files changed, 49 insertions, 0 deletions
diff --git a/media/libstagefright/include/CallbackDataSource.h b/media/libstagefright/include/CallbackDataSource.h
new file mode 100644
index 0000000..678eb2e
--- /dev/null
+++ b/media/libstagefright/include/CallbackDataSource.h
@@ -0,0 +1,49 @@
+/*
+ * Copyright 2015 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 ANDROID_CALLBACKDATASOURCE_H
+#define ANDROID_CALLBACKDATASOURCE_H
+
+#include <media/stagefright/DataSource.h>
+#include <media/stagefright/foundation/ADebug.h>
+
+namespace android {
+
+class IDataSource;
+class IMemory;
+
+// A stagefright DataSource that wraps a binder IDataSource. It's a "Callback"
+// DataSource because it calls back to the IDataSource for data.
+class CallbackDataSource : public DataSource {
+public:
+    CallbackDataSource(const sp<IDataSource>& iDataSource);
+    virtual ~CallbackDataSource();
+
+    // DataSource implementation.
+    virtual status_t initCheck() const;
+    virtual ssize_t readAt(off64_t offset, void *data, size_t size);
+    virtual status_t getSize(off64_t *size);
+
+private:
+    sp<IDataSource> mIDataSource;
+    sp<IMemory> mMemory;
+
+    DISALLOW_EVIL_CONSTRUCTORS(CallbackDataSource);
+};
+
+}; // namespace android
+
+#endif // ANDROID_CALLBACKDATASOURCE_H