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 devices 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 device. You can add a camera’s stream by adding its URL. The URL format of Akuvox devices is rtsp://Device’s IP/live/ch00_0
ONVIF is an Open Network Video Interface Forum. It enables the device to scan and discover cameras or intercom devices with activated ONVIF functions. Live streams obtained through ONVIF are essentially in RTSP format.
MJPEG Image Capturing
You can take a monitoring image in Mjpeg format with the device. To do this, you need to turn on the Mjpeg function and choose the image quality.
To enable the MJPEG function, go to the Surveillance > MJPEG interface.
Enabled: Entering the specific URL into the browser can access either an image or a video from the camera.
Tip
To view a dynamic stream, use the URL http://device_IP:8080/video.cgi.
For capturing a screenshot, use the following URLs, with the image formats varying accordingly:
http://device_IP:8080/picture.cgi
http://device_IP:8080/picture.jpg
http://device_IP:8080/jpeg.cgi
For example, if you want to capture the jpg format image of the door phone with the IP address 192.168.1.104, you can enter http://192.168.1.104:8080/picture.jpg on the web browser.
Image Quality: Specify the image resolution, varying from the lowest QCIF(176x144 pixels) to the highest 720P(1920x1080 pixels).
To set up MJPEG authentication, navigate to Surveillance > RTSP > RTSP Basic interface.
MJPEG Authorization Enabled: Once enabled, accessing the door phone’s real-time image or video by entering the URL into the browser requires verification of the Authentication Mode, RTSP Username, and RTSP Password.
RTSP Stream Monitoring
The RTSP feature allows Akuvox indoor monitors, or third-party devices, to obtain the live stream from the door phone.
You can set up the RTSP authentication credentials and video parameters.
To set it up, navigate to the Surveillance > RTSP interface.
RTSP Authorization Enabled: Once enabled, configure RTSP Authentication Mode, RTSP Username, and RTSP Password. These credentials are required for accessing the door phone's RTSP stream from other intercom devices like indoor monitors.
Authentication Mode: Digest is the default authentication type that uses hashing instead of the easily reversible Base64 encoding. A token is used for verification.
User Name: Set the username for authorization.
Password: Set the password for authorization.
RTSP Stream Setting
The RTSP stream can use H.264 as the video codec. You can adjust the video resolution, bitrate, and other settings on the web Surveillance > RTSP > H.264 Video Parameters interface.
Video Resolution: Specify the image resolution, varying from the lowest QCIF(176×144 pixels) to the highest 1080P(1920x1080 pixels).
Video Framerate(fps): Frames per second, refers to how many frames are displayed in one second of video. The default frame rate is 30fps.
Video Bitrate(Kb/Sec): The amount of video data transferred in a specific duration of time. A higher video bitrate means a higher possible quality, but also higher file sizes and more bandwidth. The default is 2048 kbps.
2nd Video Resolution: Specify the image resolution for the second video stream channel.
2nd Framerate(fps): Set the frame rate for the second video stream channel.
2nd Video Bitrate(Kb/Sec): Set the bit rate for the second video stream channel. The default is 512 kbps.
Tip
To view the audio and video stream using RTSP:
First channel: rtsp://Device’s IP/live/ch00_0
Second channel: rtsp://Device’s IP/live/ch00_1
RTSP Audio
You can set whether the RTSP stream has sound on the Surveillance > RTSP > RTSP Stream interface.
ONVIF
You can access the real-time video from the device's 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 device will allow its video to be visible on other devices.
Click here to view an example of using the ONVIF feature: the integration with Uniview NVR System.
To set it up, go to the web Surveillance > ONVIF interface.
Discoverable: When enabled, the video from the door phone camera is searchable by other devices.
Username: Set the username required for accessing the door phone's video stream on other devices. It is admin by default.
Password: Set the password required for accessing the door phone's video stream on other devices. It is admin by default.
Tip
Once the settings are configured, to access the video stream on the third-party device, simply enter the ONVIF URL: http://Device’s IP:80/onvif/device_service.
Some NVRs can send door-opening requests to the device and control door opening. You can enable or disable the function by turning on or off a switch on the same interface as the ONVIF feature.
Live Stream
There are two ways to check the real-time video from the device. 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.
For the device, the path is Surveillance > Live Stream interface.
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 the web Intercom > Call Feature > Others interface.
