Set-VmsCameraStream¶
SYNOPSIS¶
Sets properties of one or more video stream.
SYNTAX¶
RemoveStream¶
Set-VmsCameraStream [-Disabled] -Stream <VmsCameraStreamConfig[]> [-WhatIf] [-Confirm] [<CommonParameters>]
AddOrUpdateStream¶
Set-VmsCameraStream -Stream <VmsCameraStreamConfig[]> [-DisplayName <String>] [-LiveMode <String>]
[-LiveDefault] [-Recorded] [-RecordingTrack <String>] [-PlaybackDefault] [-UseEdge] [-Settings <Hashtable>]
[-WhatIf] [-Confirm] [<CommonParameters>]
DESCRIPTION¶
Use this cmdlet to update specific properties of a video stream such as the framerate, resolution, or codec, as well as to specify how the VMS should use the stream. For example, if a stream should no longer be used by the VMS, you may disable it. Or if you wish to enable a stream, and configure it as the new default live stream, you may enable it and indicate that it should be the LiveDefault stream from now on.
When viewing camera settings in Management Client, there are two tabs for configuring stream settings. The "Settings" tab shows general settings that may apply to all streams or control general streaming behavior of the camera, as well as one or more video streams each with a set of properties exclusive to that stream.
The "Streams" tab is where you can indicate which of the available streams from the camera to use, and how they should be used. By default, a single stream usage is present in the Streams tab, and it usually is associated with "Video stream 1". This stream is both the LiveDefault and the Recorded stream, and the LiveMode may be "WhenNeeded" or "Always".
This cmdlet consolidates both the Settings tab, and the Streams tab, to simplify the configuration of all properties associated with streams and how they are used by the VMS.
REQUIREMENTS
- Requires VMS connection and will attempt to connect automatically
EXAMPLES¶
Example 1¶
Connect-ManagementServer -ShowDialog -AcceptEula
$camera = Select-Camera -SingleSelect -Title 'Select a camera (double-click)'
$stream = $camera | Get-VmsCameraStream -LiveDefault
$settings = @{
FPS = 10
Codec = 'h265'
}
$stream | Set-VmsCameraStream -Settings $settings -Verbose
<# OUTPUT
VERBOSE: Performing the operation "Changing FPS from 15 to 10" on target "Video stream 1 on Cam Lab Camera".
VERBOSE: Performing the operation "Save changes" on target "Video stream 1 on Cam Lab Camera".
#>
After ensuring that we are connected to the Management Server, and prompting to select a camera, we select the default live stream for the camera. Next, a hashtable with the settings we want to apply is created, and we pass that hashtable to Set-VmsCameraStream.
With the "-Verbose" switch present, we get detailed output which tells us exactly which changes were made. In this case, the FPS was changed from 15 to 10, but the codec wasn't changed because it was already set to h265.
Example 2¶
foreach ($camera in Select-Camera -AllowFolders -RemoveDuplicates) {
$streams = $camera | Get-VmsCameraStream
$streams | Where-Object LiveMode -eq 'Never' | Set-VmsCameraStream -LiveMode WhenNeeded
$streams[0] | Set-VmsCameraStream -LiveDefault -RecordingTrack Primary -PlaybackDefault
if ($streams.Count -gt 1 ) {
$streams[1..($streams.Count - 1)] | Set-VmsCameraStream -Disabled
}
}
Disable all except for one stream on the selected cameras. Before making the first stream the default live stream, and primary recorded stream, we ensure that none of the streams have a LiveMode value of "Never" by switching all enabled streams to a LiveMode value of "WhenNeeded".
Example 3¶
$camera = Select-Camera -SingleSelect -Title 'Select a camera (double-click)'
$streams = $camera | Get-VmsCameraStream | Select-Object -First 2
$streams[0] | Set-VmsCameraStream -LiveMode WhenNeeded -LiveDefault -PlaybackDefault -RecordingTrack Primary -DisplayName "Primary stream"
$streams[1] | Set-VmsCameraStream -LiveMode WhenNeeded -LiveDefault -PlaybackDefault -RecordingTrack Secondary -DisplayName "Secondary stream"
$camera | Get-VmsCameraStream -Recorded:$false | Set-VmsCameraStream -Disabled
Get-VmsCamera | get-vmsCameraStream
<# OUTPUT
Camera Name DisplayName Enabled LiveMode LiveDefault Recorded RecordingTrack PlaybackDefault UseEdge
------ ---- ----------- ------- -------- ----------- -------- -------------- --------------- -------
Camera 1 Video stream 1 Primary stream True WhenNeeded False True Primary recording False False
Camera 1 Video stream 2 Secondary stream True WhenNeeded True True Secondary recording True False
#>
Configures the first two streams for adaptive streaming and adaptive playback. The first stream is recorded to the primary recording track, the second stream is recorded to the secondary recording track, and all other streams, if present, are disabled.
PARAMETERS¶
-Disabled¶
Specifies that the stream should be disabled. This is the same as clicking the "Delete" button in the Streams tab for a camera in Management Client.
Note that while Management Client will automatically reassign the "LiveDefault" and "Record" properties to another video stream when the deleted stream was the default live, and/or recorded stream, this cmdlet will not. If the stream to be disabled is the recorded, or default live stream, you must re-assign those responsibilities to another stream first.
Type: SwitchParameter
Parameter Sets: RemoveStream
Aliases:
Required: True
Position: Named
Default value: None
Accept pipeline input: False
Accept wildcard characters: False
-DisplayName¶
Specifies a new name to be displayed to users when selecting streams in client applications. Specifying this parameter is the same as entering an new name in the "Name" column in the Streams tab in Management Client.
Note: Specifying a value for this parameter will automatically add the stream to the Streams tab if it is not already enabled.
Type: String
Parameter Sets: AddOrUpdateStream
Aliases:
Required: False
Position: Named
Default value: None
Accept pipeline input: False
Accept wildcard characters: False
-LiveDefault¶
Specifies that the stream should be used by default for live viewing.
Note: Specifying a value for this parameter will automatically add the stream to the Streams tab if it is not already enabled.
Type: SwitchParameter
Parameter Sets: AddOrUpdateStream
Aliases:
Required: False
Position: Named
Default value: None
Accept pipeline input: False
Accept wildcard characters: False
-LiveMode¶
Specifies the LiveMode for the stream which can be either Always, Never, or WhenNeeded.
A value of "Always" means the recording server will request a live stream from the camera at all times, even when that stream is not requested by a client.
A value of "WhenNeeded" means the recording server will only request a live stream from the camera when required, such as when a client is requesting that stream, or when that stream is required by a recording rule.
Note: Specifying a value for this parameter will automatically add the stream to the Streams tab if it is not already enabled.
Type: String
Parameter Sets: AddOrUpdateStream
Aliases:
Accepted values: Always, Never, WhenNeeded
Required: False
Position: Named
Default value: None
Accept pipeline input: False
Accept wildcard characters: False
-PlaybackDefault¶
Specifies that the stream should be the default stream used for playback. The adaptive playback feature can then switch to the other recorded stream if available based on the size of the camera tile.
REQUIREMENTS
- Requires VMS feature "MultistreamRecording"
- Requires VMS version 23.2
Type: SwitchParameter
Parameter Sets: AddOrUpdateStream
Aliases:
Required: False
Position: Named
Default value: None
Accept pipeline input: False
Accept wildcard characters: False
-Recorded¶
Deprecated as of 2023 R2. For compatibility, using the -Recorded switch parameter
has the same effect as using -RecordingTrack Primary -PlaybackDefault unless one
or both of these parameters are also specified.
Type: SwitchParameter
Parameter Sets: AddOrUpdateStream
Aliases:
Required: False
Position: Named
Default value: None
Accept pipeline input: False
Accept wildcard characters: False
-RecordingTrack¶
Specifies which recording track to save the stream to.
Type: String
Parameter Sets: AddOrUpdateStream
Aliases:
Accepted values: Primary, Secondary, None
Required: False
Position: Named
Default value: None
Accept pipeline input: False
Accept wildcard characters: False
-Settings¶
Accepts a hashtable of settings used to update the properties of a given stream. A warning will be issued if a key does not match known settings for the stream. Settings may be changed on disabled video streams without enabling them.
Type: Hashtable
Parameter Sets: AddOrUpdateStream
Aliases:
Required: False
Position: Named
Default value: None
Accept pipeline input: False
Accept wildcard characters: False
-Stream¶
Accepts a VmsCameraStreamConfig as is returned by the Get-VmsCameraStream cmdlet.
Type: VmsCameraStreamConfig[]
Parameter Sets: (All)
Aliases:
Required: True
Position: Named
Default value: None
Accept pipeline input: True (ByValue)
Accept wildcard characters: False
-UseEdge¶
Specifies that the device's edge storage should be used, if available. Operators can then mark a segment of video in the timeline and retrieve the edge storage which might have higher quality than the recorded stream.
Type: SwitchParameter
Parameter Sets: AddOrUpdateStream
Aliases:
Required: False
Position: Named
Default value: None
Accept pipeline input: False
Accept wildcard characters: False
-Confirm¶
Prompts you for confirmation before running the cmdlet.
Type: SwitchParameter
Parameter Sets: (All)
Aliases: cf
Required: False
Position: Named
Default value: None
Accept pipeline input: False
Accept wildcard characters: False
-WhatIf¶
Shows what would happen if the cmdlet runs. The cmdlet is not run.
Type: SwitchParameter
Parameter Sets: (All)
Aliases: wi
Required: False
Position: Named
Default value: None
Accept pipeline input: False
Accept wildcard characters: False
CommonParameters¶
This cmdlet supports the common parameters: -Debug, -ErrorAction, -ErrorVariable, -InformationAction, -InformationVariable, -OutVariable, -OutBuffer, -PipelineVariable, -Verbose, -WarningAction, and -WarningVariable. For more information, see about_CommonParameters.