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      Monitor and Image
      • 11 Dec 2023
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      Monitor and Image

      • Updated on 11 Dec 2023
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      Article Summary

      MJPEG and RTSP are the primary monitoring stream types discussed in this chapter. 

      MJPEG, or Motion JPEG, is a video compression format that uses JPEG images for each video frame. Akuvox door phones display live streams on the web interface and capture monitoring screenshots in MJPEG format. Settings related to MJPEG determine video quality and the on/off status of the live stream function.

      RTSP stands for Real Time Streaming Protocol. It can be used to stream video and audio from the third party cameras to the door phone. You can add a camera’s stream by adding its URL.

      ONVIF is Open Network Video Interface Forum. It enables the door phone to scan and discover cameras or intercom devices with activated ONVIF functions. Live streams obtained through ONVIF are essentially in RTSP format.

      RTSP Stream Monitoring

      You can use RTSP to watch a live video stream from other intercom devices on the door phone.

      RTSP Basic Setting

      You are required to set up the RTSP function on the device web Intercom > RTSP > RTSP Basic interface in terms of RTSP authorization, authentication, and password, etc. before you are able to use the function.
      image.png

      Parameter Set-up:

      • RTSP Authorization Enabled: enable or disable the RTSP authorization. If you enable the RTSP Authorization, you are required to enter RTSP Authentication Type, RTSP Username, and RTSP Password on the intercom device such as an indoor monitor for authorization.
      • Authentication Mode: select RTSP authentication type between Basic and Digest. Basic is the default authentication type.

      RTSP OSD Setting

      This feature is used to add a watermark to the RTSP video or picture. To protect the owner of the video or image. To do this configuration on the web Intercom > RTSP > RTSP OSD Setting interface.
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      Parameter Set-up:

      • RTSP OSD Color: there are five color options - White, Black, Red, Green, and Blue for RTSP watermark text.
      • RTSP OSD Text: enter the customized text you want to show for the watermark.

      RTSP Stream Setting

      The RTSP stream can use either H.264 or Mjpeg as the video codec. If you choose H.264, you can also adjust the video resolution, bitrate, and other settings.

      Go to Intercom > RTSP > RTSP Stream interface.
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      Parameter Set-up：

      • Audio Enabled: tick to enable RTSP audio which means, the door phone can also send audio information to the monitor by RTSP.
      • Video Enabled: the door phone can send video information to the monitor. After enabling the RTSP feature, the video RTSP is enabled by default and cannot be modified.
      • 2nd Video2 Enabled: Akuvox door phones support 2 RTSP streams, you can enable the second one.
      • Audio Codec: choose a suitable audio codec for RTSP audio.
      • Video/2nd Video Codec: choose a suitable video codec for RTSP video.

      image.png

      Parameter Set-up:

      • Video Resolution: select video resolutions among six options: QCIF, QVGA, CIF, VGA, 4CIF, and 720P. The default video resolution is 4CIF. and the video from the door phone might not be able to be shown on the indoor monitor if the resolution is set higher than 4CIF.
      • Video Framerate: 30fps is the video frame rate by default.
      • Video Bitrate: select video bit-rate among six options: 128 kbps, 256kbps, 512 kbps, 1024 kbps, 2048 kbps, and 4096 kbps according to your network environment. The default video bit rate is 2048 kpbs.
      • 2nd Video Resolution: select video resolution for the second video stream channel. While the default video solution is VGA.
      • 2nd Video Framerate: select the video framerate for the second video stream channel. 25fps is the video frame rate by default for the second video stream channel.
      • 2nd Video Bitrate: select the video bit rate for the second video stream channel. While the second video stream channel is 512 kbps by default.

      MJPEG Image Capturing

      You can take a monitoring image in Mjpeg format with the door phone. To do this, you need to turn on the Mjpeg function and choose the image quality.

      Go to Intercom > RTSP > RTSP Basic and Intercom > RTSP > MJPEG Video Parameters interface.
      image.png

      image.png

      Parameter Set-up:

      • MJPEG Authorization: tick it to access device video or real-time screenshots through a browser (http address such as: http://device IP:8080/video.cgi (dynamic video), http://device IP:8080/jpeg.cgi (static screenshot) ).
      • Video Resolution: select video resolutions among six options: QCIF, QVGA, CIF, VGA, 4CIF, and 720P. The default video resolution is 4CIF. And the video from the door phone might not be able to be shown on the indoor monitor if the resolution is set higher than 4CIF.
      • Video Framerate: 30fps is the video frame rate by default.
      • Video Quality: the video bit rate is from 50 to 90.

      NACK

      Negative Acknowledgment（NACK）indicates a failure or error in data transmission or processing. It is used to request retransmission or signal the failure to the sender for ensuring data integrity.

      To enable NACK, navigate to Phone > Call Feature > Others.
      image.png

      Parameter Set-up:

      • NACK Enabled: enable the NACK. It can be used to prevent losing data packets in the weak network environment when discontinued and mosaic video images occurred.

      ONVIF

      You can access the real-time video from the door phone camera using the Akuvox indoor monitor or other third-party devices like Network Video Recorder(NVR). Enabling and setting up the ONVIF function on the door phone will allow its video to be visible on other devices.

      Navigate to Intercom > ONVIF interface.
      image.png

      Parameter Set-up:

      • Discoverable: tick the check box to enable the Discoverable ONVIF mode. If you select Discoverable then the video from the door phone camera can be searched by other devices.
      • User Name: enter the user name. It is admin by default.
      • Password: enter the password. It is admin by default.
        After the setting is complete, you can enter the ONVIF URL on the third-party device to view the video stream.
        For example: http://IP address:80/onvif/device_service
      Note:
      • Fill in the specific IP address of the door phone in the URL.

      Live Stream

      There are two ways to check the real-time video from the door phone. One is to go to the device web interface and view the video there. The other is to enter the correct URL on the web browser and access the video directly.

      Navigate to Intercom > Live Stream interface.

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