1 /* 2 * Copyright (c) 2012 The WebRTC project authors. All Rights Reserved. 3 * 4 * Use of this source code is governed by a BSD-style license 5 * that can be found in the LICENSE file in the root of the source 6 * tree. An additional intellectual property rights grant can be found 7 * in the file PATENTS. All contributing project authors may 8 * be found in the AUTHORS file in the root of the source tree. 9 */ 10 11 #ifndef MODULES_VIDEO_CAPTURE_MAIN_SOURCE_DEVICE_INFO_IMPL_H_ 12 #define MODULES_VIDEO_CAPTURE_MAIN_SOURCE_DEVICE_INFO_IMPL_H_ 13 14 #include <stdint.h> 15 16 #include <vector> 17 18 #include "api/video/video_rotation.h" 19 #include "modules/video_capture/video_capture.h" 20 #include "modules/video_capture/video_capture_defines.h" 21 #include "rtc_base/synchronization/rw_lock_wrapper.h" 22 23 namespace webrtc { 24 namespace videocapturemodule { 25 class DeviceInfoImpl : public VideoCaptureModule::DeviceInfo { 26 public: 27 DeviceInfoImpl(); 28 ~DeviceInfoImpl(void) override; 29 int32_t NumberOfCapabilities(const char* deviceUniqueIdUTF8) override; 30 int32_t GetCapability(const char* deviceUniqueIdUTF8, 31 const uint32_t deviceCapabilityNumber, 32 VideoCaptureCapability& capability) override; 33 34 int32_t GetBestMatchedCapability(const char* deviceUniqueIdUTF8, 35 const VideoCaptureCapability& requested, 36 VideoCaptureCapability& resulting) override; 37 int32_t GetOrientation(const char* deviceUniqueIdUTF8, 38 VideoRotation& orientation) override; 39 40 protected: 41 /* Initialize this object*/ 42 43 virtual int32_t Init() = 0; 44 /* 45 * Fills the member variable _captureCapabilities with capabilities for the 46 * given device name. 47 */ 48 virtual int32_t CreateCapabilityMap(const char* deviceUniqueIdUTF8) = 0; 49 50 protected: 51 // Data members 52 typedef std::vector<VideoCaptureCapability> VideoCaptureCapabilities; 53 VideoCaptureCapabilities _captureCapabilities; 54 RWLockWrapper& _apiLock; 55 char* _lastUsedDeviceName; 56 uint32_t _lastUsedDeviceNameLength; 57 }; 58 } // namespace videocapturemodule 59 } // namespace webrtc 60 #endif // MODULES_VIDEO_CAPTURE_MAIN_SOURCE_DEVICE_INFO_IMPL_H_ 61