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Editing a video stream
- Select the video stream, and then click Edit to make the required settings.
- Select the capture mode. Capture mode can only be selected if supported by the camera. The available capture modes are dependent on the camera type. With multi-channel devices or virtual cameras, changing to the capture mode affects all devices of this video server. Therefore capture mode can only be defined for the base stream (displayed with a home icon), but affects all subsequent streams of the selected camera. Depending on the setting selected, the camera provides different frame rates and resolutions. The camera may restart and then be inaccessible for a few minutes.
- Select the type of the video stream. The following video streams are available, depending on the hardware:
Motion JPEG (M-JPEG)
- Select the transmission mode (only available mode for Motion JPEG ): HTTP server push (also known as HTTP streaming) is a mechanism for sending unsolicited (asynchronous) data from a (camera) web server to the DeviceManager.
- Specify the Frame rate (fps)for standard recording.
- Specify Quality separately for standard recording.
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Select a suitable Resolution for the camera image for standard recording.
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Specify an RTSP port.
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Optionally configure the alarm recording separately. It is not recommended to specify different alarm recording settings. If there are differences in the settings for standard and alarm recording, it can take several seconds to switch from standard to alarm recording. The length of time taken depends on the camera. There may be no recording available at all during this period.
H.264 (MPEG-4)
- Select the Transmission mode. The following transmission modes are available depending on the camera:
- RTP over UDP Unicast (default setting): Communication between the server and camera is via TCP port 554 (RTSP port). Image transmission from the camera to the server is via a negotiated UDP port.
- RTP over UDP Multicast: Communication between the OnSSI server and camera is via TCP port 554 (RTSP port). Image transmission is via a multicast address provided by the camera. RTP over UDP Multicast should only be used if third-party systems (e.g. Barco or eyevis) and the OnSSI server access the camera simultaneously.
- RTP over RTSP over TCP: Communication between the OnSSI server and camera and image transmission is via TCP port 554 (RTSP port). This setting is recommended for poor network connection between OnSSI servers and camera. Latency times may occur due to repeated transmission of corrupt data.
- RTP over RTSP over HTTP Unicast: Communication and image transmission is via a HTTP tunnel (port 80 TCP). This setting is recommended for poor network connection between OnSSI servers and camera. Latency times may occur due to repeated transmission of corrupt data.
- Select the transmission of audio signals. This function is available only if the camera can process audio signals in MPEG-4-based video streams.
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Specify the Frame rate (fps) for standard recording
- Define the I-frame distance for MPEG-4/H.264
- Specify Quality separately for standard recording.
- Select a suitable Resolution for the camera image for standard recording.
- Select the type of bandwith-control for MPEG-4/H.264 streams:
- Variable Bitrate: VBR is used if sufficient resources and bandwidth are available. VBR delivers constant image quality at static scenes and motion.
- Constant Bitrate: CBR is used if only reduced bandwidth is available. CBR delivers good image quality at static scenes and reduced image quality on motion.
- Specify an RTSP port.
- Optionally configure alarm recording separately. It is not recommended to specify different alarm recording settings. If there are differences in the settings for standard and alarm recording, it can take several seconds to switch from standard to alarm recording. The length of time taken depends on the camera. There may be no recording available at all during this period.
Video classifications
This option is only available when multiple video-streams are specified for a camera. In this case, each stream has to be classified. Classified streams can be used for multiple purposes. For example, the classification “Standard quality” can be used for standard recording and alarm recording may have the classification “HD quality”. You are able to select different viewing streams in Ocularis Client based on the Video Classification. These classifications are simply labels. You can modify the text of the existing classifications, delete or add your own.
- Select the appropriate video classification (see Configuring the video classification).
DM / Client Multicast
This feature is only available in Ocularis Ultimate.
- Select DM / Client Multicast streaming to display a single video stream simultaneously on multiple clients. Multicast should only be used if there is low bandwidth between the DeviceManager and clients. Multicast-capable network hardware is required for multicast streaming.
- Enter the network address and port number of the multicast server.
- Specify the validity period TTL after which the client has to log in to the multicast server again. A short TTL results in a higher network load.
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