device_info_impl.h

Enable keyboard shortcuts

/*

 *  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_MAIN_SOURCE_DEVICE_INFO_IMPL_H_

#define MODULES_VIDEO_CAPTURE_MAIN_SOURCE_DEVICE_INFO_IMPL_H_

#include <stdint.h>

#include <vector>

#include "api/video/video_rotation.h"

#include "modules/video_capture/video_capture.h"

#include "modules/video_capture/video_capture_defines.h"

#include "rtc_base/synchronization/mutex.h"

#include "rtc_base/thread_annotations.h"

namespace webrtc {

namespace videocapturemodule {

class DeviceInfoImpl : public VideoCaptureModule::DeviceInfo {

 public:

  DeviceInfoImpl();

  ~DeviceInfoImpl(void) override;

  int32_t NumberOfCapabilities(const char* deviceUniqueIdUTF8) override;

  int32_t GetCapability(const char* deviceUniqueIdUTF8,

                        uint32_t deviceCapabilityNumber,

                        VideoCaptureCapability& capability) override;

  int32_t GetBestMatchedCapability(const char* deviceUniqueIdUTF8,

                                   const VideoCaptureCapability& requested,

                                   VideoCaptureCapability& resulting) override;

  int32_t GetOrientation(const char* deviceUniqueIdUTF8,

                         VideoRotation& orientation) override;

 protected:

  /* Initialize this object*/

  virtual int32_t Init() = 0;

  int32_t Refresh() override { return 0; }

/*

   * Fills the member variable _captureCapabilities with capabilities for the

   * given device name.

*/

  virtual int32_t CreateCapabilityMap(const char* deviceUniqueIdUTF8)

      RTC_EXCLUSIVE_LOCKS_REQUIRED(_apiLock) = 0;

 protected:

  // Data members

  typedef std::vector<VideoCaptureCapability> VideoCaptureCapabilities;

  VideoCaptureCapabilities _captureCapabilities RTC_GUARDED_BY(_apiLock);

  Mutex _apiLock;

  char* _lastUsedDeviceName RTC_GUARDED_BY(_apiLock);

  uint32_t _lastUsedDeviceNameLength RTC_GUARDED_BY(_apiLock);

};

}  // namespace videocapturemodule

}  // namespace webrtc

#endif  // MODULES_VIDEO_CAPTURE_MAIN_SOURCE_DEVICE_INFO_IMPL_H_