• Overview
  • About IP cameras and USB cameras
  • Features
  • Comparison
  • How it works: cameras
  • How it works: video chat without a server
  • How it works: video chat with a server
  • Modes of connections
  • Third-party libraries
  • Additional information
  • Version history
• Components
  • Video
    • TRVCamControl
      • Properties
        • TRVCamControl's colors
        • TRVCamControl.ShowFocus
    • TRVCamera
      • Properties
        • TRVCamera.Agent
        • TRVCamera.Bitrate
        • TRVCamera.Brightness, Contrast, Hue, Saturation, Sharpness
        • TRVCamera.CameraControl
        • TRVCamera.CameraHost, CameraPort
        • TRVCamera.CameraSearchTimeOut
        • TRVCamera.CommandMode
        • TRVCamera.CycleVideoImages, VideoImagesURLs
        • TRVCamera.DesktopMode, DesktopRect, ...
        • TRVCamera.DeviceType
        • TRVCamera.FFMpegProperty
        • TRVCamera.FileName, ToFile
        • TRVCamera.FlipHorizontally, FlipVertically
        • TRVCamera.FocusType, FocusDistance
        • TRVCamera.GStreamerProperty
        • TRVCamera.IPCameraTypes
        • TRVCamera.JpegIntegrity
        • TRVCamera.Language
        • TRVCamera.Latency
        • TRVCamera.LoginPrompt
        • TRVCamera.MaxCameraSearchThreadCount
        • TRVCamera.Parameters
        • TRVCamera.ProxyProperty
        • TRVCamera.Quality
        • TRVCamera.Rotation
        • TRVCamera.Searching
        • TRVCamera.SmoothImage
        • TRVCamera.SourceFileName
        • TRVCamera.URL
        • TRVCamera.UserAccess
        • TRVCamera.UserName, UserPassword
        • TRVCamera.Users
        • TRVCamera.VideoDeviceIndex, VideoDeviceCount, VideoDeviceList, VideoDeviceIdList
        • TRVCamera.VideoFormat
        • TRVCamera.VideoMode
        • TRVCamera.VideoResolution
      • Methods
        • TRVCamera.AddUser, ModifyUser
        • TRVCamera.FillVideoDeviceList
        • TRVCamera.Get- SetCamVideoMode, etc.
        • TRVCamera.Get- SetDesktopVideoMode, etc.
        • TRVCamera.GetAvailableCamProperties, GetAvailableCamMethods, GetAccessibleCamProperties, GetAccessibleCamMethods
        • TRVCamera.GetColorControlPropertyRange
        • TRVCamera.GetSnapShot
        • TRVCamera.IsSupportedFFMPEG
        • TRVCamera.IsSupportedGStreamer
        • TRVCamera.LockCommands, UnlockCommands
        • TRVCamera.Move***
        • TRVCamera.PlayVideoStream, PlayVideoFile
        • TRVCamera.ResetImageSetting
        • TRVCamera.SearchCamera
        • TRVCamera.SwitchLEDOn, SwitchLEDOff
        • TRVCamera.WaitForVideoStream, WaitForVideoFile, WaitForVideo, WaitForSearch
      • Events
        • TRVCamera.OnDownload, OnDownloaded
        • TRVCamera.OnEndVideoFile, OnEndVideoStream
        • TRVCamera.OnError
        • TRVCamera.OnGetImage
        • TRVCamera.OnGetVideoStreamIndex
        • TRVCamera.OnLogin
        • TRVCamera.OnLoginFailed
        • TRVCamera.OnMoved
        • TRVCamera.OnNewImage
        • TRVCamera.OnPrepared
        • TRVCamera.OnProgress
        • TRVCamera.OnSearchComplete
        • TRVCamera.OnSetProperty
        • TRVCamera.OnStartVideoFile, OnStartVideoStream
        • TRVCamera.OnVideoStart
    • TRVCamMultiView
      • Properties
        • TRVCamMultiView.AllowFullScreen
        • TRVCamMultiView.AudioSource
        • TRVCamMultiView.CameraControl
        • TRVCamMultiView.CamMoveMode
        • TRVCamMultiView.CaptionColor, CaptionFont, CaptionHeight
        • TRVCamMultiView.Color, ViewerColor
        • TRVCamMultiView.CurRenderMode, RenderMode
        • TRVCamMultiView.FocusLineColor
        • TRVCamMultiView.Font, ParentFont
        • TRVCamMultiView.FullScreen
        • TRVCamMultiView.FullScreenMultiView
        • TRVCamMultiView.HoverLineColor
        • TRVCamMultiView.IconStyle
        • TRVCamMultiView.Language
        • TRVCamMultiView.RefreshRate
        • TRVCamMultiView.RememberLastFrame
        • TRVCamMultiView.ScaleViewers
        • TRVCamMultiView.SearchPanelColor, SearchPanelTextColor
        • TRVCamMultiView.ViewerIndex
        • TRVCamMultiView.Viewers
        • TRVCamMultiView.WaitAnimationDelay
      • Events
        • TRVCamMultiView.OnFullScreen
        • TRVCamMultiView.OnSelectViewer
        • TRVCamMultiView.OnViewerPaint
    • TRVCamRecorder
      • Properties
        • TRVCamRecorder.Active
        • TRVCamRecorder.Audio*
        • TRVCamRecorder.AudioCodec, VideoCodec
        • TRVCamRecorder.AudioCodecName, VideoCodecName
        • TRVCamRecorder.AudioSource, UseAudio
        • TRVCamRecorder.OutputFileName
        • TRVCamRecorder.Paused
        • TRVCamRecorder.SourceAudioGUID, SourceAudioIndex
        • TRVCamRecorder.SourceVideoGUID, SourceVideoIndex
        • TRVCamRecorder.Video*
        • TRVCamRecorder.VideoEncodingParameters
        • TRVCamRecorder.VideoSource, UseVideo
      • Events
        • TRVCamRecorder.OnError
        • TRVCamRecorder.OnFirstFrame
        • TRVCamRecorder.OnGetImage
    • TRVCamView
      • Properties
        • TRVCamView.AllowFullScreen
        • TRVCamView.AutoSize
        • TRVCamView.CamMoveMode
        • TRVCamView.Color
        • TRVCamView.CurRenderMode, RenderMode
        • TRVCamView.FocusLineColor
        • TRVCamView.Font, ParentFont
        • TRVCamView.FrameScaleQuality
        • TRVCamView.FullScreen
        • TRVCamView.FullScreenView
        • TRVCamView.GUIDFrom, IndexFrom
        • TRVCamView.HoverLineColor
        • TRVCamView.IconStyle
        • TRVCamView.Language
        • TRVCamView.RememberLastFrame
        • TRVCamView.SearchPanelColor, SearchPanelTextColor
        • TRVCamView.ShowCameraSearch
        • TRVCamView.ShowCaption, CaptionParts, Title, CaptionColor, CaptionFont, CaptionHeight
        • TRVCamView.UseOptimalVideoResolution
        • TRVCamView.VideoSource, Camera, Receiver
        • TRVCamView.ViewMode
        • TRVCamView.WaitAnimationDelay
      • Events
        • TRVCamView.OnBeginMove, OnEndMove
        • TRVCamView.OnFullScreen
        • TRVCamView.OnMouseEnter, OnMouseLeave
        • TRVCamView.OnPaint
    • TRVWebCamDialog
      • Properties
        • TRVWebCamDialog.Camera
        • TRVWebCamDialog.Language
      • Methods
        • TRVWebCamDialog.Execute
  • Audio
    • TRVAudioPlayer
      • Properties
        • TRVAudioPlayer.Encode*
        • TRVAudioPlayer.OutputFileName
        • TRVAudioPlayer.Recording
        • TRVAudioPlayer.UseFFMpeg
      • Events
        • TRVAudioPlayer.OnStopRecording
        • TRVAudioPlayer.OnError
    • TRVCamSound
      • Properties
        • TRVCamSound.Camera
        • TRVCamSound.GUID
      • Events
        • TRVCamSound.OnGetAudioStreamIndex
    • TRVMicrophone
    • TRVMicrophoneView
      • Properties
        • TRVMicrophoneView.Orientation
        • TRVMicrophoneView.Style
      • Events
        • TRVMicrophoneView.OnPaint
  • Network
    • TRVCamReceiver
      • Properties
        • TRVCamReceiver.Active
        • TRVCamReceiver.AudioLatency, VideoLatency
        • TRVCamReceiver.BufferDuration
        • TRVCamReceiver.BufferSize
        • TRVCamReceiver.Color
        • TRVCamReceiver.ConnectionProperties
        • TRVCamReceiver.FilterSystemCmd
        • TRVCamReceiver.GUIDMy
        • TRVCamReceiver.IgnoreCorruptedFrames
        • TRVCamReceiver.JpegIntegrity
        • TRVCamReceiver.Mute
        • TRVCamReceiver.Port
        • TRVCamReceiver.Protocol
        • TRVCamReceiver.ProxyProperty
        • TRVCamReceiver.ReceiveMediaTypes
        • TRVCamReceiver.RetryCount
        • TRVCamReceiver.Senders
        • TRVCamReceiver.SessionKey, SessionKey2
        • TRVCamReceiver.SmoothImage
        • TRVCamReceiver.State
        • TRVCamReceiver.SynchonizedReceiveUserData 
        • TRVCamReceiver.TCPConnectionType
        • TRVCamReceiver.UseTempFiles
        • TRVCamReceiver.Volume
      • Methods
        • TRVCamReceiver.GetOpenChannelCount, GetMaxChannelCount
      • Events
        • TRVCamReceiver.OnConnected, OnConnecting, OnDisconnect, OnConnectError
        • TRVCamReceiver.OnDecodeAudio
        • TRVCamReceiver.OnDecodeVideo
        • TRVCamReceiver.OnGetGroupInfo
        • TRVCamReceiver.OnRequestJoinGroup
        • TRVCamReceiver.OnGetAllGroups
        • TRVCamReceiver.OnGetAllUsers, OnGetAllOnlineUsers
        • TRVCamReceiver.OnGetGroupUsers
        • TRVCamReceiver.OnGetImage
        • TRVCamReceiver.OnOpenChannel, OnCloseChannel
        • TRVCamReceiver.OnReceiveCmdData
        • TRVCamReceiver.OnReceiveFileData
        • TRVCamReceiver.OnReceiveUserData
        • TRVCamReceiver.OnSessionConnected, OnSessionDisconnected
        • TRVCamReceiver.OnUserEnter, OnUserExit
        • TRVCamReceiver.OnUserJoinsGroup, OnUserLeavesGroup
        • TRVCamReceiver.OnMediaAccessRequest, OnMediaAccessCancelRequest
    • TRVCamSender
      • Properties
        • TRVCamSender.Active
        • TRVCamSender.AudioSource
        • TRVCamSender.BufferSize
        • TRVCamSender.ChangedAreaProcessingMode
        • TRVCamSender.CompressionOptions
        • TRVCamSender.CompressionQuality
        • TRVCamSender.ConnectionProperties
        • TRVCamSender.Encoding
        • TRVCamSender.ExtraMediaSources
        • TRVCamSender.FilterBlur
        • TRVCamSender.FrameDifferenceInterval
        • TRVCamSender.FullFrameInterval
        • TRVCamSender.GUIDFrom, UseGUID
        • TRVCamSender.GUIDTo, GUIDGroup
        • TRVCamSender.MinChangeAreaSize, PixelColorThreshold
        • TRVCamSender.Protocol
        • TRVCamSender.ProxyProperty
        • TRVCamSender.ReceiverHost, ReceiverPort
        • TRVCamSender.SenderPort
        • TRVCamSender.SendMediaTypes
        • TRVCamSender.SendOptions
        • TRVCamSender.SessionKey
        • TRVCamSender.ShowCmd
        • TRVCamSender.SourceAudioIndex
        • TRVCamSender.SourceVideoIndex
        • TRVCamSender.TCPConnectionType
        • TRVCamSender.TestMode
        • TRVCamSender.VideoResolution
        • TRVCamSender.VideoSendType
        • TRVCamSender.VideoSource, SourceGUID
      • Methods
        • TRVCamSender.AddAllowedSender and others
        • TRVCamSender.AddDefaultReceiver and others
        • TRVCamSender.AllowMediaAccess, CancelMediaAccess
        • TRVCamSender.GetAllUsers, GetAllOnlineUsers
        • TRVCamSender.JoinGroup, LeaveGroup, etc.
        • TRVCamSender.NeedSendFullFrame
        • TRVCamSender.Reconnect
        • TRVCamSender.RestartServer
        • TRVCamSender.SendCmd and others
        • TRVCamSender.SendFile, SendUseData
        • TRVCamSender.SendMediaAccessRequest, SendMediaAccessCancelRequest
      • Events
        • TRVCamSender.OnConnected, OnConnecting, OnDisconnect, OnConnectError
        • TRVCamSender.OnEncodeAudio
        • TRVCamSender.OnEncodeVideo
        • TRVCamSender.OnSendCmd, OnSentCmd
    • TRVMediaServer
      • Properties
        • TRVMediaServer.BufferOptions, TempFolder
        • TRVMediaServer.CmdOptions
        • TRVMediaServer.FilterUserCmd
        • TRVMediaServer.GUIDMy
        • TRVMediaServer.HTTPActive, HTTPPort
        • TRVMediaServer.KeepClientInfoMode
        • TRVMediaServer.MaxGroupCount
        • TRVMediaServer.SenderConnectionProperties, ReceiverConnectionProperties
        • TRVMediaServer.SessionKey
        • TRVMediaServer.UDPActive, UDPPort
      • Methods
        • TRVMediaServer.SendCmdToGroup
        • TRVMediaServer.SendCmdToUser
        • TRVMediaServer.SendCommandToGUID
      • Events
        • TRVMediaServer.OnDataRead
        • TRVMediaServer.OnPacketProcessing, OnConnectionCountChanged
        • TRVMediaServer.OnServerCmd
        • TRVMediaServer.OnStart, OnStop, OnError
        • TRVMediaServer.OnUserConnect, OnUserDisconnect
    • TRVTrafficMeter
      • Properties
        • TRVTrafficMeter.Camera
        • TRVTrafficMeter.Language
        • TRVTrafficMeter.Receiver
        • TRVTrafficMeter.Sender
  • Ancestor classes
    • TCustomRVMicrophone
      • Properties
        • TCustomRVMicrophone.AudioInputDeviceIndex, AudioInputDeviceCount, AudioInputDeviceList
        • TCustomRVMicrophone.BitsPerSample, SamplesPerSec
        • TCustomRVMicrophone.BufferDuration
        • TCustomRVMicrophone.Mute
        • TCustomRVMicrophone.NoiseReduction, NoiseReductionLevel, UseRNNoise
        • TCustomRVMicrophone.Pitch
        • TCustomRVMicrophone.SoundIgnoreInterval
        • TCustomRVMicrophone.SoundMinLevel
        • TCustomRVMicrophone.SourceType
        • TCustomRVMicrophone.VolumeMultiplier
        • TCustomRVMicrophone.WAVFileName
        • TCustomRVMicrophone.WAVUseOptions
      • Events
        • TCustomRVMicrophone.OnOpenWavFile, OnReadWavFile, OnCloseWavFile
    • TCustomRVReceiver
      • Properties
        • TCustomRVReceiver.AudioOutput
      • Events
        • TCustomRVReceiver.OnDataRead
    • TCustomRVSender
    • TRVAudioSource
      • Properties
        • TRVAudioSource.Active
        • TRVAudioSource.Volume
      • Events
        • TRVAudioSource.OnGetAudio
    • TRVAudioSourceWithOutput
      • Properties
        • TRVAudioSourceWithOutput.AudioOutput
    • TRVAudioViewer
      • Properties
        • TRVAudioViewer.AudioSource
        • TRVAudioViewer.ReceiverSource, GUIDFrom
    • TRVMediaSource
    • TRVVideoSource
      • Properties
        • TRVVideoSource.Aborting
        • TRVVideoSource.FramePerSec
      • Methods
        • TRVVideoSource.Abort
        • TRVVideoSource.GetOptimalVideoResolution
    • TCustomRVAudioOutput
      • Properties
        • TCustomRVAudioOutput.Active
        • TCustomRVAudioOutput.Volume
      • Events
        • TCustomRVAudioOutput.OnGetAudio
    • TCustomRVAudioPlayer
      • Properties
        • TCustomRVAudioPlayer.AudioInputDeviceIndex, AudioInputDeviceCount, AudioInputDeviceList
        • TCustomRVAudioPlayer.BufferDuration
        • TCustomRVAudioPlayer.Mute
        • TCustomRVAudioPlayer.NoiseReduction
        • TCustomRVAudioPlayer.Pitch
        • TCustomRVAudioPlayer.VolumeMultiplier
• Classes
  • TRVBufferOptions
  • TRVCmd
  • TRVCmdParamCollection
  • TRVCmdParamItem
  • TRVCompressionOptions
  • TRVConnectionProperties
  • TRVFFMpegProperty
  • TRVFFMpegRemuxProperty
  • TRVGStreamerProperty
  • TRVImageWrapper
  • TRVMBitmap
  • TRVMediaSourceCollection
  • TRVMediaSourceItem
  • TRVMotionDetector
    • Properties
      • TRVMotionDetector.ChangedAreaProcessingMode
      • TRVMotionDetector.TestMode
      • TRVMotionDetector.MinChangeAreaSize, PixelColorThreshold
    • Methods
      • TRVMotionDetector.DetectChanges
      • TRVMotionDetector.GetRect, IsRectValid
  • TRVProxyProperty
  • TRVSenderCollection
  • TRVSenderCollectionEx
  • TRVSenderItem
  • TRVSenderItemEx
  • TRVSendOptions
• Global variables and constants
  • *_DATA
  • glRVInetMaxConnect
• Global procedures
  • MRVCore Unit
    • RVMGetWindowRect
  • MRVDesktop Unit
    • GetVisibleWindowsHandles
    • GetWindowTitleByHandle
  • MRVFFmpeg Unit
    • LoadFFMpegLibraries
    • IsSupportedFFmpeg
  • MRVFFMpegLists Unit
    • GetListOfAvailable-Audio/Video-Decoders/Encoders
    • GetListOfAvailableFFmpegAudioCodecs
    • GetListOfAvailableFFmpegFileFormats
    • GetListOfAvailableFFmpegVideoCodecs
    • GetListOfAvailableSampleFormats
    • GetListOfAvailableSampleRates
    • GetListOfVideoInputFormats
  • MRVFormatInfo Unit
    • GetAudioCodecFileExt, GetVideoCodecFileExts
    • GetAudioCodecName, GetVideoCodecName
    • GetSampleFormatName
  • MRVGStreamer Unit
    • LoadGStreamerLibraries
    • IsSupportedGStreamer
  • MRVRNNoise Unit
    • LoadRNNoise
    • IsRNNoiseLoaded
  • MRVWebCamFuncs Unit 
    • DescribeVideoMode
    • DescribeVideoModePixelFormat
• Examples
  • Example 1: playing a camera video (wait mode)
  • Example 2: playing a camera video (no wait mode)
  • Example 3: playing a video stream
• Types
  • Events
    • TRVAudioEvent
    • TRVCamDoneEvent
    • TRVCamErrorEvent
    • TRVCmdEvent
    • TRVDataReadEvent
    • TRVFullScreenEvent
    • TRVGetMediaStreamIndexEvent
    • TRVImageEvent
    • TRVSocketEvent
  • TRVAudioCodec
  • TRVBitsPerSample
  • TRVBoundsTestMode
  • TRVCameraType, TRVCameraTypes
  • TRVCamMoveMode
  • TRVCamVideoMode, TRVColorModel
  • TRVChangedAreaProcessingMode
  • TRVColorControlProperty
  • TRVCompressionType
  • TRVDesktopVideoMode
  • TRVEncodingType
  • TRVFFMpegFilter
  • TRVJpegIntegrity
  • TRVMAnsiString
  • TRVMColor
  • TRVMediaType
  • TRVMIconStyle
  • TRVMLanguage
  • TRVMRect, TRVMPoint, TRVUnitSize
  • TRVMRenderMode
  • TRVMWindowHandle
  • TRVParamType
  • TRVProtocol
  • TRVProtocolEx, TRVProtocolsEx
  • TRVRTSPFlag, TRVRTSPFlags
  • TRVSampleFormat
  • TRVSamplesPerSec
  • TRVSessionKey
  • TRVSocket
  • TRVTCPConnectionType
  • TRVVideoCodec
  • TRVVideoResolution