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_LINUX_DEVICE_INFO_V4L2_H_ 12 #define MODULES_VIDEO_CAPTURE_LINUX_DEVICE_INFO_V4L2_H_ 13 14 #include <stdint.h> 15 16 #include "modules/video_capture/device_info_impl.h" 17 18 namespace webrtc { 19 namespace videocapturemodule { 20 class DeviceInfoV4l2 : public DeviceInfoImpl { 21 public: 22 DeviceInfoV4l2(); 23 ~DeviceInfoV4l2() override; 24 uint32_t NumberOfDevices() override; 25 int32_t GetDeviceName(uint32_t deviceNumber, 26 char* deviceNameUTF8, 27 uint32_t deviceNameLength, 28 char* deviceUniqueIdUTF8, 29 uint32_t deviceUniqueIdUTF8Length, 30 char* productUniqueIdUTF8 = 0, 31 uint32_t productUniqueIdUTF8Length = 0) override; 32 /* 33 * Fills the membervariable _captureCapabilities with capabilites for the 34 * given device name. 35 */ 36 int32_t CreateCapabilityMap(const char* deviceUniqueIdUTF8) override 37 RTC_EXCLUSIVE_LOCKS_REQUIRED(_apiLock); 38 int32_t DisplayCaptureSettingsDialogBox(const char* /*deviceUniqueIdUTF8*/, 39 const char* /*dialogTitleUTF8*/, 40 void* /*parentWindow*/, 41 uint32_t /*positionX*/, 42 uint32_t /*positionY*/) override; 43 int32_t FillCapabilities(int fd) RTC_EXCLUSIVE_LOCKS_REQUIRED(_apiLock); 44 int32_t Init() override; 45 46 private: 47 bool IsDeviceNameMatches(const char* name, const char* deviceUniqueIdUTF8); 48 }; 49 } // namespace videocapturemodule 50 } // namespace webrtc 51 #endif // MODULES_VIDEO_CAPTURE_LINUX_DEVICE_INFO_V4L2_H_ 52