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Parameter identifiers

The parameter identifiers are constant strings declared in the include files of the package (see Filter configuration through IDatasteadRtspSourceConfig).

  • the Identifier column is the name of the identifier that can be passed as parameter from the IDatasteadRtspSourceConfig interface. The type suffix of the name (_str, _int, _bool, _double, _int64, _intptr) reminds the corresponding Get.../Set... function to invoke,
  • the url param column, if it exists, is the name of this parameter when it is passed alternatively at the end of the URL (instead of using IDatasteadRtspSourceConfig), e.g.:
rtsp://192.168.0.25/axis-media/media.amp?videocodec=h264&audio=1>recordingfilename=c:\folder\test.mp4

Actions

Identifier Description
RTSP_Action_OpenURL Sets the URL and connects the filter synchronously. This function must be invoked while configuring the filter, at last, after setting all the optional parameters, if needed. Returns S_OK upon success.
RTSP_Action_OpenURLAsync Sets the URL and initiates the connection, but returns immediately without waiting for the connection to complete. The filter connects in the background and notifies when the connection completes through the IMediaEventEx notification (EC_RTSPNOTIFY with param1 = EC_RTSP_PARAM1_OPENURLASYNC_CONNECTION_RESULT, param2 = 1 on success, 0 on failure) or through the callback configured with SetAsyncOpenURLCallback. You must wait for the notification before trying to render the pins, because the pin formats are not available until the connection is completed.
RTSP_Action_IsURLResponding Tests if the source is live, without starting the URL decoding. Returns S_OK upon success.
RTSP_Action_GetONVIFSnapshot Captures synchronously a snapshot from an ONVIF URL (see ONVIF JPEG snapshot).
RTSP_Action_GetONVIFSnapshotAsync Captures asynchronously a snapshot from an ONVIF URL (see ONVIF JPEG snapshot).
RTSP_Action_GetONVIFInfo Opens the ONVIF URL and gets the ONVIF settings, without starting the live stream. You can then invoke the GetStr (RTSP_ONVIF_Info...) functions to read the ONVIF settings.
RTSP_Action_RecordToNewFileNow Closes the current file being written and starts writing to a new file specified as parameter. The new file must have the same extension than the previous one. If no file name is specified as parameter, the current file is closed, reopened and overwritten. To temporarily suspend the recording without stopping the graph, pass a file name having the same extension and "nul" as name (e.g. nul.mp4, as is, without file path); the recording remains suspended until you pass a new valid file name. This action applies only while the graph is running and recording.
RTSP_Action_CancelPendingConnection Cancels a pending URL connection, previously initiated by RTSP_Action_OpenURLAsync. It can be invoked e.g. when exiting the application, just before clearing the graph, to ensure any pending connection is cancelled immediately.
RTSP_Action_PauseURL Pauses the video stream.
RTSP_Action_ResumeURL Resumes the video stream.
RTSP_Action_PauseRecording Pauses the recording of the current file, while the preview keeps running.
RTSP_Action_ResumeRecording Resumes the recording of the current file, if previously paused.
RTSP_Action_CaptureFrame Captures a frame as snapshot. The format depends on the Option parameter. File name: the next frame is captured in the format specified by the extension (BMP, TIFF, PNG, JPG), e.g. Action (RTSP_Action_CaptureFrame, "c:\folder\nextimage.jpg"). "HBITMAP" keyword: the next frame is captured to a bitmap handle, returned by an EC_RTSPNOTIFY (EC_RTSP_PARAM1_FRAME_CAPTURE_SUCCEEDED, BitmapHandle) notification event (do not delete the bitmap handle, it may be reused for the next capture and will be released by the filter).
RTSP_Action_UpdateDuration Reserved.

Source URL

Identifier url param Description
RTSP_Source_RecordingFileName_str recordingfilename Sets the recording file name. Setting this property enables the recording of the stream to a file. The extension determines the format (mp4, flv, mov, avi, mkv). To configure the filter in recording mode without starting immediately the recording, set a nul file name without path with the desired extension (e.g. nul.mp4), then invoke Action (RTSP_Action_RecordToNewFileNow, realfilename) when it is time to write. Remarks: the filter does not include an H264 encoder, it just saves the native H264 samples to the recording file; if the audio recording is enabled, it encodes the audio stream to PCM, MP3 or AAC depending on the recording format selected; if the recording file name is set while the filter is running, this closes the current file being recorded and starts saving to a new file on the fly.
RTSP_Source_RecordingBacktimedStartSeconds_int backtimedstart See Backtimed recording.
RTSP_Source_Recording_Title_str title Sets a title for the video clip (for containers that support this feature, like MP4).
RTSP_Source_PlayableWhileRecording_int playablewhilerecording 0: the clip is not playable while recording (default). 1: the clip is playable while recording if the container supports this possibility (like MP4 or ASF). 2: idem, different mode.
RTSP_Source_ContinuousRecording_bool continuousrecording When enabled, the recording does not stop when the graph is stopped / restarted. The recording stops only when the graph is destroyed (default: disabled).
RTSP_Source_MaxAnalyzeDuration_int maxanalyzeduration Maximum duration of the analysis of the stream during the initial connection, expressed in milliseconds, e.g. ">maxanalyzeduration=1000".
RTSP_Source_FindFPSFrameCount_int findfpsframecount Number of frames used to analyze the fps when it is not reported by the camera at connection time. Default value: 40 frames. With lower values the connection will be faster but there is more chance the FPS reported is inaccurate; with higher values the FPS reported will be more accurate but the connection will take longer.
RTSP_Source_FastConnect_bool fastconnect Enables the fast connection mode. 0: disabled (default), 1: enabled. May increase the memory consumption. E.g. rtsp://192.168.5.22/live.sdp>fastconnect=1
RTSP_Source_AutoReconnect_bool autoreconnect Enables/disables the automatic reconnection of the filter. Default: enabled. See Auto reconnection.
RTSP_Source_RetryInitialConnect_int retryinitialconnect When connecting asynchronously and the URL is not available, the filter retries to connect to the URL. 0: disabled (default), -1: retries indefinitely, 1..n: retries the specified number of times. The duration of each retry depends on the RTSP_Source_ConnectionTimeOut_int parameter expressed in milliseconds.
RTSP_Source_CopyTimestamps_bool copyts When enabled, the timestamps of the source are copied "as is": from the input stream to the output pins (when decoding), and from the input stream to the output stream of the file being recorded (when recording). Note: in this mode it is not possible to record to a new file "on the fly" without stopping/restarting the filter.
RTSP_Source_NoTranscoding_bool notranscoding Records the audio stream "as is", instead of recompressing it to AAC. Default: false.
RTSP_Source_DeviceLostTimeOut_int devicelosttimeout If no frame is received after this timeout (expressed in milliseconds) the auto reconnection (if autoreconnect=1) or device lost event (if autoreconnect=0) occurs (see Auto reconnection). Default: 10 sec. (10000).
RTSP_Source_BufferDuration_int buffer Specifies the buffering duration in milliseconds. Default: 0 if no audio, 1000 milliseconds if audio.
RTSP_Source_SampleDeliveryMode_int sampledeliverymode Reserved.
RTSP_Source_TimestampDelayMs_int timestampdelayms Adds (or removes if negative) the specified latency to the sample timestamps of the output pins.
RTSP_Source_ConnectionTimeOut_int timeout Connection timeout in milliseconds. Default: 20000 (20 seconds).
RTSP_Source_RTSPTransport_int rtsptransport RTSP transport mode. 0: automatic, 1: tcp, 2: udp, 3: http, 4: udp_multicast, 5: https. See RTSP transport.
RTSP_Source_RTSPRange_str rtsprange Optional RTSP range specification (e.g. to start playing a clip stored on the RTSP source at the specified date/time). E.g.: ">rtsprange=clock=20150217T153000Z-".
RTSP_Source_UDP_LocalAddr_str localaddr Local IP address of a network interface used for sending packets or joining multicast groups.
RTSP_Source_UDP_LocalPort_int localport Overrides the local UDP port to bind with.
RTSP_Source_HTTPProxy_str httpproxy Specifies the http proxy to use, if needed, for the http/https URLs. Syntax without authentication: http://IP:port. Syntax with authentication: http://user:passwd@IP:port. E.g. as url parameter: >httpproxy=http://proxyuser:proxypass@192.168.1.38:9000.
RTSP_Source_MpegTS_Program_str program In a MPEG-TS stream with several programs, specifies the name of the program to use (by default the 1st program found is used).
RTSP_Source_Format_str srcformat Used to specify the input format for some HTTP URLs if the filter does not detect them properly. Possible values: "mjpeg" (IP camera, HTTP in JPG or MJPEG mode), "mxg" (IP camera, HTTP in MXPEG mode), "jpeg:WidthxHeight" (specifies the image dimensions when the RTSP stream is a MJPEG stream and the size is not properly detected by the filter).
RTSP_Source_Playback_Speed_Ratio_double playspeedratio For the URLs having a fixed duration, specifies the playback speed. E.g. to play the clip at half speed: >playspeedratio=0.5.
RTSP_Source_Axis_IrCutFilter_str Sets or retrieves the state of the IR Cut Filter of Axis cameras. Supported values: "enabled" / "disabled" / "auto".
RTSP_Source_AverageTimePerFrame100ns_int Retrieves the average time per video frame, expressed in 100ns units.
RTSP_Source_DurationMs_int Retrieves the duration of the clip or URL, if any (if the source is not a live source), expressed in milliseconds.
RTSP_Source_Duration100ns_int64 Retrieves the duration of the clip or URL, if any (if the source is not a live source), expressed in 100 ns units.
RTSP_Source_AuthUser_str Authentication user name, if required.
RTSP_Source_AuthPassword_str Authentication password, if required.
RTSP_Source_StreamInfo_str Retrieves information about the streams. Note: this is a "displayable" multi-line string, each line separated by CR/LF characters.
RTSP_Source_StreamInfo_as_XML_str Retrieves information about the streams as XML text.
RTSP_Source_Metadata_str Retrieves the metadata as a string made of values separated by CR/LF characters.
RTSP_Source_StartTime_int starttime If the source URL supports seeking, you can specify the start time expressed in milliseconds. E.g. if the start time should be 2 min 30 sec → 150 seconds = 150000 milliseconds: SetInt ("RTSP_Source_StartTime_int", 150000).
RTSP_Source_Threads_int threads Number of threads assigned to the decoding (and eventually encoding) of the source. Default: 1. 0: auto.
RTSP_Source_ThreadPriority_int threadpriority Sets the priority of the decoding threads. 0: THREAD_PRIORITY_NORMAL (default), 1: THREAD_PRIORITY_ABOVE_NORMAL, 2: THREAD_PRIORITY_HIGHEST, 3: THREAD_PRIORITY_TIME_CRITICAL.
RTSP_Source_IsURLConnected_bool Returns true if the URL is connected. It returns false if the URL is not yet connected, or if the URL is reconnecting when AutoReconnect is enabled.
RTSP_Source_GetAudioDevices_str Retrieves the list of the DirectShow audio capture devices (microphone, line input, webcam mic., etc...) currently available on the PC. It is returned as a "displayable" string that contains the devices separated by a "\n" (line feed, chr(10)) character.
RTSP_Source_SetAudioDevice_str Sets the name of the audio capture device to use. The name must be one of the names returned by GetStr (RTSP_Source_GetAudioDevices_str, ...). Setting this property invalidates the audio of the RTSP source or IP camera (if any), and selects the use of the specified audio capture device instead.
RTSP_Source_GetURL_str Retrieves the current URL.
RTSP_Source_GetState_int Returns the current source state. Possible values include: state_disconnected, state_connecting_async, state_connecting_sync, state_reconnecting, state_connected, state_previewing, state_recording_paused, state_recording_active.

These parameters require to be connected with an onvif://... URL syntax.

Identifier url param Description
RTSP_ONVIF_Authentication_TimeOffsetMode_int authmode 0: authentication with time offset disabled first, then if it fails, authentication with time offset checking. 1: authenticates without time offset checking. 2: authenticates with time offset checking. 3: authentication with time offset first, then if it fails, authentication without time offset checking.
RTSP_ONVIF_Media_Version_int mediaversion Used to specify whether the ONVIF Media1 (VER10) or Media2 (VER20) version should be used to query the ONVIF media information. 0: (default) uses both methods, returns profile information from the media version reporting the higher number of profiles. 1: uses Media1 (VER10). 2: uses Media2 (VER20).
RTSP_ONVIF_LastJPEGSnapshotBuffer_intptr Returns a pointer to the memory buffer containing the last ONVIF JPEG snapshot.
RTSP_ONVIF_LastJPEGSnapshotSize_int Returns the size of the memory buffer containing the last ONVIF JPEG snapshot.
RTSP_ONVIF_Info_As_XML_str Returns all the ONVIF information gathered (manufacturer, model, serial, recordings available, etc...) in XML format.
RTSP_ONVIF_Replay_As_XML_str Retrieves the list of the recordings available with their replay URLs in XML format (see ONVIF replay).
RTSP_ONVIF_Info_Manufacturer_str Retrieves the name of the manufacturer of the IP camera or DVR.
RTSP_ONVIF_Info_Model_str Retrieves the model of the IP camera or DVR.
RTSP_ONVIF_Info_HardwareId_str Retrieves the hardware identifier of the IP camera or DVR.
RTSP_ONVIF_Info_SerialNumber_str Retrieves the serial number of the IP camera or DVR.
RTSP_ONVIF_Info_FirmwareVersion_str Retrieves the firmware version of the IP camera or DVR.
RTSP_ONVIF_Info_PTZInfo_str Retrieves the PTZ information of the IP camera or DVR, as a string of values separated by CR/LF characters.
RTSP_ONVIF_Info_PTZLimits_str Retrieves the min/max values of Pan, Tilt or Zoom of the IP camera, as a string of values separated by CR/LF characters.
RTSP_ONVIF_Info_PTZPresets_str Retrieves the list of the presets of the IP camera, as a string of values separated by CR/LF characters.
RTSP_ONVIF_Info_MacAddress_str Retrieves the MAC address of the network interface of the camera.
RTSP_ONVIF_Info_AuxiliaryCommands_str Retrieves the list of the auxiliary commands available for this camera, as a string made of words separated by "\r\n" characters.

Video encoding

If specified, re-encodes with a different video codec than the native codec of the video source. Requires more CPU.

Identifier url param Description
RTSP_VideoEncoder_Codec_str vcodec Specifies a video codec, to record in a different format, video size or bitrate (instead of the native codec format), e.g. "h264".
RTSP_VideoEncoder_BitRateKbps_int vbitrate Specifies the bitrate expressed in Kbps, if a video codec has been specified for the recording (see RTSP_VideoEncoder_Codec_str).
RTSP_VideoEncoder_QualityMin_int vqualitymin If specified and greater than 0, enables the VBR mode and specifies a minimal quality value that depends on the codec, usually in the 0..51 range or 12..42 range (for OpenH264). Note: lower value = higher quality.
RTSP_VideoEncoder_QualityMax_int vqualitymax If specified and greater than 0, enables the VBR mode and specifies a maximal quality value that depends on the codec, usually in the 0..51 range or 12..42 range (for OpenH264). Note: lower value = higher quality.
RTSP_VideoEncoder_GopSize_int vgopsize Specifies the key frame spacing (e.g. a GOP of 30 at 30fps creates a key frame every 30 frames).
RTSP_VideoEncoder_Profile_str vprofile Specifies a profile name for the encoder (e.g. "baseline" for H264).
RTSP_VideoEncoder_Cabac_bool vcabac Enables the cabac mode for the encoder (context-adaptive coding).
RTSP_VideoEncoder_Width_int vwidth Specifies the video width for the encoder.
RTSP_VideoEncoder_Height_int vheight Specifies the video height for the encoder.

Audio encoding

Identifier url param Description
RTSP_AudioEncoder_Codec_str acodec Specifies a codec name for the audio encoding, e.g. "aac", "mp3", ...
RTSP_AudioEncoder_BitRateKbps_int abitrate Specifies a bitrate in Kbps for the audio encoding.
RTSP_AudioEncoder_SampleRate_int asamplerate Specifies a sample rate for the audio encoding (e.g. 44100, 22050, etc...).

Video output pin

Identifier url param Description
RTSP_VideoStream_Enabled_bool videostreamenabled Enables/disables the video decompression and the rendering of the video pin. Default: true.
RTSP_VideoStream_Synchronized_bool vidsync If disabled, the filter removes the sample times, so the samples are rendered as fast as possible (the samples are not scheduled for rendering). Default: true.
RTSP_VideoStream_Recorded_bool videostreamrecorded If the recording is enabled (by setting RTSP_Source_RecordingFileName_str) and the URL outputs audio and video, allows to record audio only by disabling the recording of the video stream. Default: true.
RTSP_VideoStream_Sync_Start_Recording_bool syncstart Starts the recording synchronized with the decoded frames displayed. Enabling this feature enables automatically the recompression with the same codec. To recompress with a different codec, specify the codec name with RTSP_VideoEncoder_Codec_str. It is possible to enable the GPU encoding with RTSP_VideoStream_GPUEncoder_int.
RTSP_VideoStream_Decode_KeyFrames_Only_bool keyframesonly If set to true, only I-Frames are decoded. Can be enabled/disabled on the fly without stopping/restarting the graph. Saves decoding CPU by previewing at 1 fps or so, depending on the GOP size (key frame spacing). Default: false. Can be enabled through the URL by adding >keyframesonly=1. See also How can I reduce the CPU load?
RTSP_VideoStream_Index_int videostreamindex If the URL outputs more than 1 video stream, you can specify the index of the video stream to use (in the 0..n-1 range). Default: 0.
RTSP_VideoStream_MpegTS_pid_str vpid In a MPEG-TS stream with several video streams, specifies the PID of the video stream to use (by default the 1st video stream found is used).
RTSP_VideoStream_PinFormat_str videopinformat By default the video pin can connect in RGB32 or RGB24 format. This property allows to force one of the following pin formats (not case-sensitive): RGB32, RGB24, RGB565, RGB555, NV12, UYVY, I420.
RTSP_VideoStream_Width_int width Used to specify a non-default frame width for the video pin. Note: when the URL is connected, GetInt(RTSP_VideoStream_Width_int, Value) returns the video width of the decoded video stream.
RTSP_VideoStream_Height_int height Used to specify a non-default frame height for the video pin. Note: when the URL is connected, GetInt(RTSP_VideoStream_Height_int, Value) returns the video height of the decoded video stream.
RTSP_VideoStream_AspectRatio_double aspectratio Specifies how the aspect ratio of the video output pin is handled. 0.0 → applies the aspect ratio of the stream format, if specified. 1.0 → uses the width and height of the native video frame, "as is". Other values → applies the aspect ratio specified.
RTSP_VideoStream_TopDown_bool Makes the image of the video output pin "top down".
RTSP_VideoStream_MaxFrameRate_double maxframerate Used to limit the frame rate of the video pin. If this parameter is not specified the frame rate is the native frame rate of the video stream. The value is relevant only if it is lower than the frame rate of the video pin. See also RTSP_VideoStream_Decode_KeyFrames_Only_bool.
RTSP_VideoStream_Filter_str videofilter Specifies a FFmpeg video filter to use, e.g. hflip for a horizontal flipping, vflip for a top-down image (see Video processing). Note: depending on the context, some filters may not be usable.
RTSP_VideoStream_HWAcceleration_int hwaccel Enables the GPU-accelerated decoding. 0: software decoding, 1: dxva2 acceleration, 2: Intel GPU (QuickSync) — lowest memory consumption, 3: NVidia GPU (CUVID), 4: AMD AMF, 5: auto (whatever available: QuickSync, NVidia or AMD).
RTSP_VideoStream_HWAccelerationDevice_int hwdevice When RTSP_VideoStream_HWAcceleration_int is enabled, specifies the index of the GPU device (in the [0..n-1] range). Useful only if more than 1 GPU is available.
RTSP_VideoStream_GPUEncoder_int gpuenc Enables the hardware-accelerated encoding through the GPU when the recompression is enabled (the recompression is enabled by specifying a codec name with RTSP_VideoEncoder_Codec_str or by adding e.g. ">vcodec=h264" at the end of the URL). 0: software encoding, 1: auto select GPU, 2: Intel QSV GPU, 3: NVidia NVENC GPU, 4: AMD AMF GPU.
RTSP_VideoStream_Deinterlacing_int deint Enables the deinterlacing. 0: no deinterlacing (default), 1: yadif deinterlacing, 2: w3fdif deinterlacing (consumes more CPU).
RTSP_VideoStream_ConfigureTextOverlay_str textoverlay Enables a text overlay. To enable more than one overlay, invoke the function more than one time with a different overlay ID. Note: the overlay(s) must be enabled before loading the URL. If they must not be displayed immediately, set an empty string, then update it while the filter is running. The syntax is explained in the Text overlays chapter.
RTSP_VideoStream_ConfigureHueBrightSat_str brighthuesat Enables the brightness/hue/saturation adjustment. Note: must be enabled before loading the URL. If it must not be applied immediately, set the default values (b=0, h=0, s=1), then update them while the filter is running. The syntax is explained in the Text overlays and brightness/hue/saturation chapter.
RTSP_VideoStream_DelayMs_int videodelay Adds the specified latency (in milliseconds) to the video stream, relatively to the audio stream. Designed to have "manual" control over the audio/video sync.

Audio output pin

Identifier url param Description
RTSP_AudioStream_Enabled_bool audiostreamenabled Enables/disables the audio decompression and the rendering of the audio pin. Default: true.
RTSP_AudioStream_Recorded_bool audiostreamrecorded If the recording is enabled (by setting RTSP_Source_RecordingFileName_str) and the URL outputs audio and video, allows to record video only by disabling the recording of the audio stream. Default: true.
RTSP_AudioStream_Index_int audiostreamindex If the URL outputs more than 1 audio stream, you can specify the index of the audio stream to use (in the 0..n-1 range). Default: 0.
RTSP_AudioStream_SamplesPerSec_int audiosamplespersec Specifies the number of audio samples per second of the output pin. Values supported: 8000, 11025, 22050, 32000, 44100, 48000. Default: 44100.
RTSP_AudioStream_MpegTS_pid_str apid In a MPEG-TS stream with several audio streams, specifies the PID of the audio stream to use (by default the 1st audio stream found is used).
RTSP_AudioStream_Filter_str audiofilter Specifies a FFmpeg audio filter to use. Note: depending on the context, some filters may not be usable.
RTSP_AudioStream_Volume_int audiovolume Specifies a non-default audio volume, in the 0..65535 range (0 = muted).
RTSP_AudioStream_DelayMs_int audiodelay Adds the specified latency (in milliseconds) to the audio stream, relatively to the video stream. Designed to have "manual" control over the audio/video sync.

Frame capture

Identifier url param Description
RTSP_FrameCapture_Width_int framecapturewidth Specifies a non-default width for the next captured frame (by default the native width of the video frame is used).
RTSP_FrameCapture_Height_int framecaptureheight Specifies a non-default height for the next captured frame (by default the native height of the video frame is used).
RTSP_FrameCapture_Time_int framecapturetime Schedules the stream time the next frame will be captured, expressed in milliseconds.
RTSP_FrameCapture_FileName_str framecapturefilename Specifies the full path and file name of the next frame to capture. The extension specifies the format, the supported formats are: BMP, JPG, PNG, TIFF, e.g. "c:\folder\nextframe.png".

Recording progress

Identifier Description
RTSP_CurrentRecording_FileSizeKb_int Returns the file size progress (in Kb) of the current recording.
RTSP_CurrentRecording_ClipDurationMs_int Returns the duration in milliseconds of the current recording.
RTSP_CurrentRecording_VideoFrameCount_int Returns the video frame count of the current recording.
RTSP_CurrentRecording_FileName_str Returns the file name of the current recording.
RTSP_LastRecorded_FileSizeKb_int Returns the file size in Kb of the last file recorded.
RTSP_LastRecorded_ClipDurationMs_int Returns the duration in milliseconds of the last file recorded.
RTSP_LastRecorded_VideoFrameCount_int Returns the video frame count of the last file recorded.
RTSP_LastRecorded_FileName_str Returns the name of the last file recorded.

Re-streaming

Destination URL, encoding format of the destination URL (see Re-streaming).

Identifier url param Description
RTSP_Dest_URL_str desturl Sets the re-streaming URL. Examples (at the end of the source URL): RTSP server on port 6000 (the IP address is the address of a network card on the PC running the filter): >desturl=rtspsrv://192.168.0.25:6000; UDP unicast on port 5000 (the IP address is the IP address of the client PC): >desturl=udp://192.168.0.200:5000; UDP multicast on port 4000: >desturl=udp://239.255.0.10:4000. Programmatical example: SetStr ("RTSP_Dest_URL_str", "rtspsrv://192.168.0.25:6000").
RTSP_Dest_Video_BitRate_int destvideobitrate Sets the re-streaming video bit rate expressed in kb/s.
RTSP_Dest_Video_KeyFrameInterval_int destvideokeyframeinterval Sets the key frame spacing (default 30).

Misc.

Identifier url param Description
RTSP_Filter_Last_Error_Message_str Returns information about the origin of the error that occurred when the connection to the URL failed.
RTSP_Release_HBITMAP_int64 Invoke SetInt64 (RTSP_Release_HBITMAP_int64, handle) to release a memory bitmap previously allocated by invoking Action (RTSP_Action_CaptureFrame, "HBITMAP").
RTSP_Recording_MP4TagTimeUTC_bool mp4tagutc If enabled, the tag time of the MP4 file is set as UTC to be Quicktime-compliant. If disabled, the tag time of the MP4 file is set as local time, to be EXIF-compliant. Default: disabled.
RTSP_Filter_Version_int Returns the filter version number.
RTSP_Filter_Version_str Returns the filter version as string.
RTSP_Filter_Build_int Returns the filter build number.
RTSP_Filter_LicenseKey_str Sets the license key.