diff options
Diffstat (limited to 'third_party/libwebrtc/modules/video_capture/linux/device_info_v4l2.h')
-rw-r--r-- | third_party/libwebrtc/modules/video_capture/linux/device_info_v4l2.h | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/third_party/libwebrtc/modules/video_capture/linux/device_info_v4l2.h b/third_party/libwebrtc/modules/video_capture/linux/device_info_v4l2.h new file mode 100644 index 0000000000..55415845ad --- /dev/null +++ b/third_party/libwebrtc/modules/video_capture/linux/device_info_v4l2.h @@ -0,0 +1,72 @@ +/* + * Copyright (c) 2012 The WebRTC project authors. All Rights Reserved. + * + * Use of this source code is governed by a BSD-style license + * that can be found in the LICENSE file in the root of the source + * tree. An additional intellectual property rights grant can be found + * in the file PATENTS. All contributing project authors may + * be found in the AUTHORS file in the root of the source tree. + */ + +#ifndef MODULES_VIDEO_CAPTURE_LINUX_DEVICE_INFO_V4L2_H_ +#define MODULES_VIDEO_CAPTURE_LINUX_DEVICE_INFO_V4L2_H_ + +#include <stdint.h> + +#include "modules/video_capture/device_info_impl.h" + +#include "rtc_base/platform_thread.h" +#ifdef WEBRTC_LINUX +#include <sys/inotify.h> +#endif + +struct v4l2_capability; + +namespace webrtc { +namespace videocapturemodule { +class DeviceInfoV4l2 : public DeviceInfoImpl { + public: + DeviceInfoV4l2(); + ~DeviceInfoV4l2() override; + uint32_t NumberOfDevices() override; + int32_t GetDeviceName(uint32_t deviceNumber, + char* deviceNameUTF8, + uint32_t deviceNameLength, + char* deviceUniqueIdUTF8, + uint32_t deviceUniqueIdUTF8Length, + char* productUniqueIdUTF8 = 0, + uint32_t productUniqueIdUTF8Length = 0, + pid_t* pid = 0, + bool* deviceIsPlaceholder = 0) override; + /* + * Fills the membervariable _captureCapabilities with capabilites for the + * given device name. + */ + int32_t CreateCapabilityMap(const char* deviceUniqueIdUTF8) override + RTC_EXCLUSIVE_LOCKS_REQUIRED(_apiLock); + int32_t DisplayCaptureSettingsDialogBox(const char* /*deviceUniqueIdUTF8*/, + const char* /*dialogTitleUTF8*/, + void* /*parentWindow*/, + uint32_t /*positionX*/, + uint32_t /*positionY*/) override; + int32_t FillCapabilities(int fd) RTC_EXCLUSIVE_LOCKS_REQUIRED(_apiLock); + int32_t Init() override; + + private: + bool IsDeviceNameMatches(const char* name, const char* deviceUniqueIdUTF8); + bool IsVideoCaptureDevice(struct v4l2_capability* cap); + +#ifdef WEBRTC_LINUX + void HandleEvent(inotify_event* event, int fd); + int EventCheck(int fd); + int HandleEvents(int fd); + int ProcessInotifyEvents(); + rtc::PlatformThread _inotifyEventThread; + void InotifyProcess(); + int _fd_v4l, _fd_dev, _wd_v4l, _wd_dev; /* accessed on InotifyEventThread thread */ + std::atomic<bool> _isShutdown; +#endif +}; +} // namespace videocapturemodule +} // namespace webrtc +#endif // MODULES_VIDEO_CAPTURE_LINUX_DEVICE_INFO_V4L2_H_ |