Extractor service

Run extractors in a separate process. Currently all data is copied through a
binder transaction, and WVMExtractor is still run in the mediaserver process.

Change-Id: Ic5dbce87126dd321ad792f4dd540c2ff6b068d13
diff --git a/services/mediaextractor/MediaExtractorService.h b/services/mediaextractor/MediaExtractorService.h
new file mode 100644
index 0000000..c4e924e
--- /dev/null
+++ b/services/mediaextractor/MediaExtractorService.h
@@ -0,0 +1,48 @@
+/*
+ * Copyright (C) 2013 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_MEDIA_EXTRACTOR_SERVICE_H
+#define ANDROID_MEDIA_EXTRACTOR_SERVICE_H
+
+#include <binder/BinderService.h>
+#include <media/IMediaExtractorService.h>
+#include <media/IMediaExtractor.h>
+
+namespace android {
+
+class MediaExtractorService : public BinderService<MediaExtractorService>, public BnMediaExtractorService
+{
+    friend class BinderService<MediaExtractorService>;    // for MediaExtractorService()
+public:
+    MediaExtractorService() : BnMediaExtractorService() { }
+    virtual ~MediaExtractorService() { }
+    virtual void onFirstRef() { }
+
+    static const char*  getServiceName() { return "media.extractor"; }
+
+    virtual status_t    hello();
+    virtual sp<IMediaExtractor> makeExtractor(const sp<IDataSource> &source, const char *mime);
+
+    virtual status_t    onTransact(uint32_t code, const Parcel& data, Parcel* reply,
+                                uint32_t flags);
+
+private:
+    Mutex               mLock;
+};
+
+}   // namespace android
+
+#endif  // ANDROID_MEDIA_EXTRACTOR_SERVICE_H