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1 // Copyright 2016 The Chromium Authors. All rights reserved. | 1 // Copyright 2016 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef MEDIA_CAPTURE_VIDEO_LINUX_CAMERA_FACING_CHROMEOS_H_ | 5 #ifndef MEDIA_CAPTURE_VIDEO_LINUX_CAMERA_CONFIG_CHROMEOS_H_ |
6 #define MEDIA_CAPTURE_VIDEO_LINUX_CAMERA_FACING_CHROMEOS_H_ | 6 #define MEDIA_CAPTURE_VIDEO_LINUX_CAMERA_CONFIG_CHROMEOS_H_ |
7 | 7 |
8 #include <stddef.h> | 8 #include <stddef.h> |
9 | 9 |
10 #include <string> | 10 #include <string> |
11 #include <unordered_map> | 11 #include <unordered_map> |
12 | 12 |
13 #include <base/strings/string_piece.h> | 13 #include <base/strings/string_piece.h> |
14 #include "media/base/video_facing.h" | 14 #include "media/base/video_facing.h" |
15 #include "media/capture/capture_export.h" | 15 #include "media/capture/capture_export.h" |
16 | 16 |
17 namespace media { | 17 namespace media { |
18 | 18 |
19 // CameraFacingChromeOS reads the file /etc/camera/camera_characteristics.conf | 19 // CameraConfigChromeOS reads the file /etc/camera/camera_characteristics.conf |
20 // and populates |camera_id_to_facing_|, |usb_id_to_camera_id_| and | 20 // and populates |camera_id_to_facing_|, |usb_id_to_camera_id_| and |
21 // |model_id_to_camera_id_|. | 21 // |model_id_to_camera_id_|. |
22 // | 22 // |
23 // Each line in the config file can be: | 23 // Each line in the config file can be: |
24 // 1. Empty line | 24 // 1. Empty line |
25 // 2. Line starts with '#': comments | 25 // 2. Line starts with '#': comments |
26 // 3. Line follows the format: | 26 // 3. Line follows the format: |
27 // camera[camera_id].[root_level_attribute]=[value] OR | 27 // camera[camera_id].[root_level_attribute]=[value] OR |
28 // camera[camera_id].module[module_id].[module_level_attribute]=[value] | 28 // camera[camera_id].module[module_id].[module_level_attribute]=[value] |
29 // | 29 // |
(...skipping 11 matching lines...) Expand all Loading... |
41 // camera0.module0.usb_vid_pid=0123:4567 | 41 // camera0.module0.usb_vid_pid=0123:4567 |
42 // camera0.module0.horizontal_view_angle=68.4 | 42 // camera0.module0.horizontal_view_angle=68.4 |
43 // camera0.module0.lens_info_available_focal_lengths=1.64 | 43 // camera0.module0.lens_info_available_focal_lengths=1.64 |
44 // camera0.module0.lens_info_minimum_focus_distance=0.22 | 44 // camera0.module0.lens_info_minimum_focus_distance=0.22 |
45 // camera0.module0.lens_info_optimal_focus_distance=0.5 | 45 // camera0.module0.lens_info_optimal_focus_distance=0.5 |
46 // camera0.module0.vertical_view_angle=41.6 | 46 // camera0.module0.vertical_view_angle=41.6 |
47 // camera0.module1.usb_vid_pid=89ab:cdef | 47 // camera0.module1.usb_vid_pid=89ab:cdef |
48 // camera0.module1.lens_info_available_focal_lengths=1.69,2 | 48 // camera0.module1.lens_info_available_focal_lengths=1.69,2 |
49 // camera1.lens_facing=1 | 49 // camera1.lens_facing=1 |
50 // camera1.sensor_orientation=180 | 50 // camera1.sensor_orientation=180 |
51 class CAPTURE_EXPORT CameraFacingChromeOS { | 51 class CAPTURE_EXPORT CameraConfigChromeOS { |
52 public: | 52 public: |
53 CameraFacingChromeOS(); | 53 CameraConfigChromeOS(); |
54 CAPTURE_EXPORT CameraFacingChromeOS(const std::string& config_file_path); | 54 CAPTURE_EXPORT CameraConfigChromeOS(const std::string& config_file_path); |
55 CAPTURE_EXPORT ~CameraFacingChromeOS(); | 55 CAPTURE_EXPORT ~CameraConfigChromeOS(); |
56 | 56 |
57 // Get camera facing by specifying USB vid and pid and device path. |model_id| | 57 // Get camera facing by specifying USB vid and pid and device path. |model_id| |
58 // should be formatted as "vid:pid". |device_id| is something like | 58 // should be formatted as "vid:pid". |device_id| is something like |
59 // "/dev/video2". It first tries to match usb path, obtained from |device_id|. | 59 // "/dev/video2". It first tries to match usb path, obtained from |device_id|. |
60 // If fails, |model_id| is then used. | 60 // If fails, |model_id| is then used. |
61 CAPTURE_EXPORT VideoFacingMode | 61 CAPTURE_EXPORT VideoFacingMode |
62 GetCameraFacing(const std::string& device_id, | 62 GetCameraFacing(const std::string& device_id, |
63 const std::string& model_id) const; | 63 const std::string& model_id) const; |
| 64 // Get the orientation of the camera. The value is the angle that the camera |
| 65 // image needs to be rotated clockwise so it shows correctly on the display in |
| 66 // its natural orientation. It should be 0, 90, 180, or 270. |
| 67 // |
| 68 // For example, suppose a device has a naturally tall screen. The back-facing |
| 69 // camera sensor is mounted in landscape. You are looking at the screen. If |
| 70 // the top side of the camera sensor is aligned with the right edge of the |
| 71 // screen in natural orientation, the value should be 90. If the top side of a |
| 72 // front-facing camera sensor is aligned with the right of the screen, the |
| 73 // value should be 270. |
| 74 int GetOrientation(const std::string& device_id, |
| 75 const std::string& model_id) const; |
64 | 76 |
65 static const VideoFacingMode kLensFacingDefault = | 77 static const VideoFacingMode kLensFacingDefault = |
66 VideoFacingMode::MEDIA_VIDEO_FACING_NONE; | 78 VideoFacingMode::MEDIA_VIDEO_FACING_NONE; |
67 | 79 |
68 private: | 80 private: |
69 std::string GetUsbId(const std::string& device_id) const; | 81 std::string GetUsbId(const std::string& device_id) const; |
| 82 int GetCameraId(const std::string& device_id, |
| 83 const std::string& model_id) const; |
70 // Read file content and populate |camera_id_to_facing_|, | 84 // Read file content and populate |camera_id_to_facing_|, |
71 // |usb_id_to_camera_id_| and |model_id_to_camera_id_|. | 85 // |usb_id_to_camera_id_| and |model_id_to_camera_id_|. |
72 void InitializeDeviceInfo(const std::string& config_file_path); | 86 void InitializeDeviceInfo(const std::string& config_file_path); |
73 | 87 |
74 std::unordered_map<int, VideoFacingMode> camera_id_to_facing_; | 88 std::unordered_map<int, VideoFacingMode> camera_id_to_facing_; |
| 89 std::unordered_map<int, int> camera_id_to_orientation_; |
75 std::unordered_map<std::string, int> usb_id_to_camera_id_; | 90 std::unordered_map<std::string, int> usb_id_to_camera_id_; |
76 std::unordered_map<std::string, int> model_id_to_camera_id_; | 91 std::unordered_map<std::string, int> model_id_to_camera_id_; |
77 }; | 92 }; |
78 | 93 |
79 } // namespace media | 94 } // namespace media |
80 | 95 |
81 #endif // MEDIA_CAPTURE_VIDEO_LINUX_CAMERA_FACING_CHROMEOS_H_ | 96 #endif // MEDIA_CAPTURE_VIDEO_LINUX_CAMERA_CONFIG_CHROMEOS_H_ |
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