A composite RTSP stream is a video stream transmitted using the RTSP protocol. A composite RTSP stream is several video channels from Axxon One, which are transmitted in one live video stream, combined into a layout. The layout of the composite stream can have the following formats: 1x1, 2x2, 3x3, 4x4 and so on. Streams fill the layout from left to right and then from top to bottom.

  • You cannot use a composite RTSP stream to transmit audio or other media components.
  • You cannot use a composite RTSP stream to transmit archive recordings.
  • To use the composite RTSP stream, you must use an NVIDIA graphics card that supports CUDA and NVDEC technologies.
  • The composite RTSP stream doesn't support operation with Intel integrated graphics processors. The composite RTSP stream can work with Intel GPUs if the softacceleration parameter is used for test purposes only.

You can use GET requests to get live video streams (see Get high and low quality streams).

You can also use the ffplay link. To do this, open a command prompt as administrator and enter:

ffplay "rtsp://login:password@IP address:port/composite/SERVER1/1/0/0;SERVER1/2/0/0;SERVER1/3/0/0;SERVER1/4/0/0?res=1920x1080&fps=15&quality=4&deviceid=0"

You can also use a plus sign as a separator between video sources:

ffplay rtsp://login:password@IP address:port/composite/SERVER1/1/0/0+SERVER1/2/0/0+SERVER1/3/0/0+SERVER1/4/0/0?res=1920x1080&fps=15&quality=4&deviceid=0


where:

ParameterRequiredDescription
login:passwordYesUser data in the login:password format
IP address

IP address of the Server, from which you want to get the stream

portRTSP port (default RTSP port in Windows OS is 554, default RTSP port in Linux OS is 20554)
SERVER1/1/0/0;SERVER1/2/0/0;SERVER1/3/0/0;SERVER1/4/0/0

Video sources in abbreviated form.

Full names of video sources aren't allowed.

Camera names are abbreviated as follows:

  • /hosts/SERVER1/DeviceIpint.1/SourceEndpoint.video:0:0 = SERVER1/1/0/0;
  • /hosts/SERVER1/DeviceIpint.2/SourceEndpoint.video:0:0 = SERVER1/2/0/0;
  • /hosts/SERVER1/DeviceIpint.3/SourceEndpoint.video:0:0 = SERVER1/3/0/0;
  • /hosts/SERVER1/DeviceIpint.4/SourceEndpoint.video:0:0 = SERVER1/4/0/0.

To see the full names, you can use the GET request http://IP address:port/prefix/camera/list (see Get list of cameras and information about them). Full names are listed in the accessPoint field, for example:

"accessPoint" :
"hosts/SERVER1/DeviceIpint.1/SourceEndpoint.video:0:0"

resNo

Video resolution in pixels (for example, 1920x1080). If you don’t specify the parameter in the link, the default value is 1920x1080

fps

Number of frames per second (for example, 15). If you don’t specify the parameter in the link, the default value is 25

qualityVideo quality, set in the range from 0 to 6, where 0 is the best quality, 6 is the worst quality. If you don’t specify the parameter in the link, the default value is 3 (medium quality)
deviceid

Sequence number of the video card in the system (for example, 0). If you don’t specify the parameter in the link, the default value is 1

In Linux OS, to determine the video card number, run the command:

nvidia-smi --query-gpu=index,name --format=csv

Example of command output:

index, name
0, NVIDIA GeForce RTX 4060

In this case, the sequence number of the video card is 0.

As a result, after running the command, a layout with the specified video sources is displayed.

Additionally, you can specify the softacceleration=1 parameter in the link. You can use this parameter for test purposes only! You can use this parameter for debugging and testing functionality on test objects, where the use of hardware acceleration isn’t required. You cannot use this parameter on real objects, because software decoding excessively loads CPU, which can lead to a significant decrease in system performance.