diff -r 000000000000 -r 6474c204b198 dom/camera/GonkCameraSource.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dom/camera/GonkCameraSource.h	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,164 @@
+/*
+ * 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 GONK_CAMERA_SOURCE_H_
+
+#define GONK_CAMERA_SOURCE_H_
+
+#include <media/stagefright/MediaBuffer.h>
+#include <media/stagefright/MediaSource.h>
+#include <camera/CameraParameters.h>
+#include <utils/List.h>
+#include <utils/RefBase.h>
+#include <utils/String16.h>
+
+#include "GonkCameraHwMgr.h"
+
+namespace android {
+
+class IMemory;
+
+class GonkCameraSource : public MediaSource, public MediaBufferObserver {
+public:
+
+    static GonkCameraSource *Create(const sp<GonkCameraHardware>& aCameraHw,
+                                    Size videoSize,
+                                    int32_t frameRate,
+                                    bool storeMetaDataInVideoBuffers = false);
+
+    virtual ~GonkCameraSource();
+
+    virtual status_t start(MetaData *params = NULL);
+    virtual status_t stop() { return reset(); }
+    virtual status_t read(
+            MediaBuffer **buffer, const ReadOptions *options = NULL);
+
+    /**
+     * Check whether a GonkCameraSource object is properly initialized.
+     * Must call this method before stop().
+     * @return OK if initialization has successfully completed.
+     */
+    virtual status_t initCheck() const;
+
+    /**
+     * Returns the MetaData associated with the GonkCameraSource,
+     * including:
+     * kKeyColorFormat: YUV color format of the video frames
+     * kKeyWidth, kKeyHeight: dimension (in pixels) of the video frames
+     * kKeySampleRate: frame rate in frames per second
+     * kKeyMIMEType: always fixed to be MEDIA_MIMETYPE_VIDEO_RAW
+     */
+    virtual sp<MetaData> getFormat();
+
+    /**
+     * Tell whether this camera source stores meta data or real YUV
+     * frame data in video buffers.
+     *
+     * @return true if meta data is stored in the video
+     *      buffers; false if real YUV data is stored in
+     *      the video buffers.
+     */
+    bool isMetaDataStoredInVideoBuffers() const;
+
+    virtual void signalBufferReturned(MediaBuffer* buffer);
+
+protected:
+
+    enum CameraFlags {
+        FLAGS_SET_CAMERA = 1L << 0,
+        FLAGS_HOT_CAMERA = 1L << 1,
+    };
+
+    int32_t  mCameraFlags;
+    Size     mVideoSize;
+    int32_t  mNumInputBuffers;
+    int32_t  mVideoFrameRate;
+    int32_t  mColorFormat;
+    status_t mInitCheck;
+
+    sp<MetaData> mMeta;
+
+    int64_t mStartTimeUs;
+    int32_t mNumFramesReceived;
+    int64_t mLastFrameTimestampUs;
+    bool mStarted;
+    int32_t mNumFramesEncoded;
+
+    // Time between capture of two frames.
+    int64_t mTimeBetweenFrameCaptureUs;
+
+    GonkCameraSource(const sp<GonkCameraHardware>& aCameraHw,
+                 Size videoSize, int32_t frameRate,
+                 bool storeMetaDataInVideoBuffers = false);
+
+    virtual int startCameraRecording();
+    virtual void stopCameraRecording();
+    virtual void releaseRecordingFrame(const sp<IMemory>& frame);
+
+    // Returns true if need to skip the current frame.
+    // Called from dataCallbackTimestamp.
+    virtual bool skipCurrentFrame(int64_t timestampUs) {return false;}
+
+    friend class GonkCameraSourceListener;
+    // Callback called when still camera raw data is available.
+    virtual void dataCallback(int32_t msgType, const sp<IMemory> &data) {}
+
+    virtual void dataCallbackTimestamp(int64_t timestampUs, int32_t msgType,
+            const sp<IMemory> &data);
+
+private:
+
+    Mutex mLock;
+    Condition mFrameAvailableCondition;
+    Condition mFrameCompleteCondition;
+    List<sp<IMemory> > mFramesReceived;
+    List<sp<IMemory> > mFramesBeingEncoded;
+    List<int64_t> mFrameTimes;
+
+    int64_t mFirstFrameTimeUs;
+    int32_t mNumFramesDropped;
+    int32_t mNumGlitches;
+    int64_t mGlitchDurationThresholdUs;
+    bool mCollectStats;
+    bool mIsMetaDataStoredInVideoBuffers;
+    sp<GonkCameraHardware> mCameraHw;
+
+    void releaseQueuedFrames();
+    void releaseOneRecordingFrame(const sp<IMemory>& frame);
+
+    status_t init(Size videoSize, int32_t frameRate,
+                  bool storeMetaDataInVideoBuffers);
+    status_t isCameraColorFormatSupported(const CameraParameters& params);
+    status_t configureCamera(CameraParameters* params,
+                    int32_t width, int32_t height,
+                    int32_t frameRate);
+
+    status_t checkVideoSize(const CameraParameters& params,
+                    int32_t width, int32_t height);
+
+    status_t checkFrameRate(const CameraParameters& params,
+                    int32_t frameRate);
+
+    void releaseCamera();
+    status_t reset();
+
+    GonkCameraSource(const GonkCameraSource &);
+    GonkCameraSource &operator=(const GonkCameraSource &);
+};
+
+}  // namespace android
+
+#endif  // GONK_CAMERA_SOURCE_H_