Android Tango depth camera capture support.

media/capture/video/android/video_capture_device_tango_android.h

+// Copyright (c) 2017 The Chromium Authors. All rights reserved.

[mcasas, 2017/07/15 00:12:37]

No (c) anymore, and 2017 in VideoCaptureTango.java.

+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef MEDIA_CAPTURE_VIDEO_ANDROID_VIDEO_CAPTURE_DEVICE_TANGO_ANDROID_H_
+#define MEDIA_CAPTURE_VIDEO_ANDROID_VIDEO_CAPTURE_DEVICE_TANGO_ANDROID_H_
+
+#include <jni.h>
+
+#include "base/macros.h"
+#include "base/memory/weak_ptr.h"
+#include "video_capture_device_android.h"
+
+namespace media {
+
+class CAPTURE_EXPORT VideoCaptureDeviceTangoAndroid
+    : public VideoCaptureDeviceAndroid {
+ public:
+  explicit VideoCaptureDeviceTangoAndroid(
+      const VideoCaptureDeviceDescriptor& device_descriptor);
+  ~VideoCaptureDeviceTangoAndroid() override;
+
+  void GetPhotoState(GetPhotoStateCallback callback) override{};
+  void SetPhotoOptions(mojom::PhotoSettingsPtr settings,
+                       SetPhotoOptionsCallback callback) override{};
+  void TakePhoto(TakePhotoCallback callback) override{};
+
+  // Implement org.chromium.media.VideoCapture.nativePointCloudAvailable.
+  void OnPointCloudAvailable(JNIEnv* env,
+                             jobject obj,
+                             jobject points_buffer,
+                             jint num_points,
+                             jdouble timestamp) override;
+
+ private:
+  friend class VideoCaptureDeviceTangoAndroidTest;
+  struct TangoIntrinsics {
+    // Fields naming and the description is the same as for struct
+    // TangoCameraIntrinsic at
+    // https://developers.google.com/tango/apis/c/reference/struct/tango-camera-intrinsics.
+    float fx = 0;
+    float fy = 0;
+    float cx = 0;
+    float cy = 0;
+  };
+
+  static std::unique_ptr<TangoIntrinsics> GetIntrinsics(JNIEnv* env,
+                                                        jobject obj);
+
+  std::unique_ptr<TangoIntrinsics> intrinsics_;
+  base::WeakPtrFactory<VideoCaptureDeviceTangoAndroid> weak_ptr_factory_;
+  DISALLOW_IMPLICIT_CONSTRUCTORS(VideoCaptureDeviceTangoAndroid);
+};
+
+}  // namespace media
+
+#endif  // MEDIA_CAPTURE_VIDEO_ANDROID_VIDEO_CAPTURE_DEVICE_ANDROID_H_