import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

netwerk/protocol/device/CameraStreamImpl.h

@@ -0,0 +1,71 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef __CAMERASTREAMIMPL_H__
+#define __CAMERASTREAMIMPL_H__
+
+#include "mozilla/jni/Refs.h"
+
+#include "nsString.h"
+
+/**
+ * This singleton class handles communication with the Android camera
+ * through JNI. It is used by the IPDL parent or directly from the chrome process
+ */
+
+namespace mozilla {
+namespace net {
+
+class CameraStreamImpl {
+public:
+    class FrameCallback {
+    public:
+        virtual void ReceiveFrame(char* frame, uint32_t length) = 0;
+    };
+
+    /**
+     * instance bound to a given camera
+     */
+    static CameraStreamImpl* GetInstance(uint32_t aCamera);
+
+    bool initNeeded() {
+        return !mInit;
+    }
+
+    FrameCallback* GetFrameCallback() {
+        return mCallback;
+    }
+
+    MOZ_MUST_USE bool Init(const nsCString& contentType, const uint32_t& camera, const uint32_t& width, const uint32_t& height, FrameCallback* callback);
+    void Close();
+
+    uint32_t GetWidth() { return mWidth; }
+    uint32_t GetHeight() { return mHeight; }
+    uint32_t GetFps() { return mFps; }
+
+    void takePicture(const nsAString& aFileName);
+
+private:
+    class Callback;
+
+    CameraStreamImpl(uint32_t aCamera);
+    CameraStreamImpl(const CameraStreamImpl&);
+    CameraStreamImpl& operator=(const CameraStreamImpl&);
+
+    ~CameraStreamImpl();
+
+    void TransmitFrame(jni::ByteArray::Param aData);
+
+    bool mInit;
+    uint32_t mCamera;
+    uint32_t mWidth;
+    uint32_t mHeight;
+    uint32_t mFps;
+    FrameCallback* mCallback;
+};
+
+} // namespace net
+} // namespace mozilla
+
+#endif