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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 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 // VideoCaptureManager is used to open/close, start/stop, enumerate available | 5 // VideoCaptureManager is used to open/close, start/stop, enumerate available |
6 // video capture devices, and manage VideoCaptureController's. | 6 // video capture devices, and manage VideoCaptureController's. |
7 // All functions are expected to be called from Browser::IO thread. Some helper | 7 // All functions are expected to be called from Browser::IO thread. Some helper |
8 // functions (*OnDeviceThread) will dispatch operations to the device thread. | 8 // functions (*OnDeviceThread) will dispatch operations to the device thread. |
9 // VideoCaptureManager will open OS dependent instances of VideoCaptureDevice. | 9 // VideoCaptureManager will open OS dependent instances of VideoCaptureDevice. |
10 // A device can only be opened once. | 10 // A device can only be opened once. |
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275 void DoGetPhotoCapabilities( | 275 void DoGetPhotoCapabilities( |
276 VideoCaptureDevice::GetPhotoCapabilitiesCallback callback, | 276 VideoCaptureDevice::GetPhotoCapabilitiesCallback callback, |
277 VideoCaptureDevice* device); | 277 VideoCaptureDevice* device); |
278 void DoSetPhotoOptions( | 278 void DoSetPhotoOptions( |
279 VideoCaptureDevice::SetPhotoOptionsCallback callback, | 279 VideoCaptureDevice::SetPhotoOptionsCallback callback, |
280 media::mojom::PhotoSettingsPtr settings, | 280 media::mojom::PhotoSettingsPtr settings, |
281 VideoCaptureDevice* device); | 281 VideoCaptureDevice* device); |
282 void DoTakePhoto(VideoCaptureDevice::TakePhotoCallback callback, | 282 void DoTakePhoto(VideoCaptureDevice::TakePhotoCallback callback, |
283 VideoCaptureDevice* device); | 283 VideoCaptureDevice* device); |
284 | 284 |
285 #if defined(OS_MACOSX) | |
286 // Called on the IO thread after the device layer has been initialized on Mac. | |
287 // Sets |capture_device_api_initialized_| to true and then executes and_then. | |
288 void OnDeviceLayerInitialized(const base::Closure& and_then); | |
289 | |
290 // Returns true if the current operation needs to be preempted by a call to | |
291 // InitializeCaptureDeviceApiOnUIThread. | |
292 // Called on the IO thread. | |
293 bool NeedToInitializeCaptureDeviceApi(MediaStreamType stream_type); | |
294 | |
295 // Called on the IO thread to do async initialization of the capture api. | |
296 // Once initialization is done, and_then will be run on the IO thread. | |
297 void InitializeCaptureDeviceApiOnUIThread(const base::Closure& and_then); | |
298 | |
299 // Due to initialization issues with AVFoundation on Mac, we need | |
300 // to make sure we initialize the APIs on the UI thread before we can reliably | |
301 // use them. This variable is only checked and set on the IO thread. | |
302 bool capture_device_api_initialized_ = false; | |
303 #endif | |
304 | |
305 #if defined(OS_ANDROID) | 285 #if defined(OS_ANDROID) |
306 void ReleaseDevices(); | 286 void ReleaseDevices(); |
307 void ResumeDevices(); | 287 void ResumeDevices(); |
308 | 288 |
309 std::unique_ptr<base::android::ApplicationStatusListener> | 289 std::unique_ptr<base::android::ApplicationStatusListener> |
310 app_status_listener_; | 290 app_status_listener_; |
311 bool application_state_has_running_activities_; | 291 bool application_state_has_running_activities_; |
312 #endif | 292 #endif |
313 | 293 |
314 // The message loop of media stream device thread, where VCD's live. | 294 // The message loop of media stream device thread, where VCD's live. |
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353 // Map used by DesktopCapture. | 333 // Map used by DesktopCapture. |
354 std::map<media::VideoCaptureSessionId, gfx::NativeViewId> | 334 std::map<media::VideoCaptureSessionId, gfx::NativeViewId> |
355 notification_window_ids_; | 335 notification_window_ids_; |
356 | 336 |
357 DISALLOW_COPY_AND_ASSIGN(VideoCaptureManager); | 337 DISALLOW_COPY_AND_ASSIGN(VideoCaptureManager); |
358 }; | 338 }; |
359 | 339 |
360 } // namespace content | 340 } // namespace content |
361 | 341 |
362 #endif // CONTENT_BROWSER_RENDERER_HOST_MEDIA_VIDEO_CAPTURE_MANAGER_H_ | 342 #endif // CONTENT_BROWSER_RENDERER_HOST_MEDIA_VIDEO_CAPTURE_MANAGER_H_ |
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