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+/*
+ * Copyright (C) 2009 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 CAMERA_SOURCE_H_
+
+#define CAMERA_SOURCE_H_
+
+#include <media/stagefright/MediaBuffer.h>
+#include <media/stagefright/MediaSource.h>
+#include <utils/List.h>
+#include <utils/RefBase.h>
+#include <utils/threads.h>
+
+namespace android {
+
+class ICamera;
+class IMemory;
+class Camera;
+
+class CameraSource : public MediaSource, public MediaBufferObserver {
+public:
+ static CameraSource *Create();
+ static CameraSource *CreateFromCamera(const sp<Camera> &camera);
+
+ virtual ~CameraSource();
+
+ virtual status_t start(MetaData *params = NULL);
+ virtual status_t stop();
+
+ virtual sp<MetaData> getFormat();
+
+ virtual status_t read(
+ MediaBuffer **buffer, const ReadOptions *options = NULL);
+
+ virtual void signalBufferReturned(MediaBuffer* buffer);
+
+private:
+ friend class CameraSourceListener;
+
+ sp<Camera> mCamera;
+ sp<MetaData> mMeta;
+
+ Mutex mLock;
+ Condition mFrameAvailableCondition;
+ Condition mFrameCompleteCondition;
+ List<sp<IMemory> > mFramesReceived;
+ List<sp<IMemory> > mFramesBeingEncoded;
+ List<int64_t> mFrameTimes;
+
+ int64_t mStartTimeUs;
+ int64_t mFirstFrameTimeUs;
+ int64_t mLastFrameTimestampUs;
+ int32_t mNumFramesReceived;
+ int32_t mNumFramesEncoded;
+ int32_t mNumFramesDropped;
+ int32_t mNumGlitches;
+ int64_t mGlitchDurationThresholdUs;
+ bool mCollectStats;
+ bool mStarted;
+
+ CameraSource(const sp<Camera> &camera);
+
+ void dataCallbackTimestamp(
+ int64_t timestampUs, int32_t msgType, const sp<IMemory> &data);
+
+ void releaseQueuedFrames();
+ void releaseOneRecordingFrame(const sp<IMemory>& frame);
+
+ CameraSource(const CameraSource &);
+ CameraSource &operator=(const CameraSource &);
+};
+
+} // namespace android
+
+#endif // CAMERA_SOURCE_H_