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_