format of the configuration file for the sample program ZaoVideoSource4cam

■ Examples

; comment line
## comment line.
[compositor].
resolution = 3840x2160
framerate = 30000/1000
view0 = CamSec0
view1 = CamSec1
view2 = CamSec2
view3 = CamSec3
 
[CamSec0]
; webcam example
path = /dev/video2
pixel_format = MJPEG
resolution = 1920x1080
framerate = 60
 
[CamSec1]
; GMSL camera example
path = /dev/video0
resolution = 1920x1080
framerate = 30
 
[CamSec2] ; GMSL camera example
; GMSL camera example
path = /dev/video1
resolution = 960x540
framerate = 58
 
[CamSec3]
; IP camera example
path = rtsp://ipcam1/stream1
pixel_format = H264
username = user1
password = pass1
````
 
### ■ General
 
* In the configuration file, anything after `;` and `#` is treated as a comment.
 
## ■ `compositor` section
 
* This section contains settings for image compositing.
* The configuration entries are as follows.
| entry | example entry | description |
| ------------ | --------------------- | --------------------------------------------------------------------------- |
| resolution | `1920x1080` | resolution after compositing |
| framerate | `60000/1001` or `60` | frame rate at which the compositor acquires images from each camera
| viewN | section name | N=0, 1, 2, 3 to describe which section to map to {upper left, upper right, lower left, lower right}.
* _If the same camera is specified for multiple views, it will not work correctly. _
 
## ■ Other sections
 
* All other sections are treated as one camera definition per section.
* These sections can have the following values
  * path
  * resolution
  * framerate
  * pixel_format
* Example: 

ini

[gmsl1]
path = /dev/video1
resolution = 960x540
framerate = 58
pixel_format = UYVY

■ path.

• An entry indicating the path to the device.
• A path starting with /dev/ is treated as a camera to be opened by V4L2.
• URLs beginning with rtsp:// will be treated as IP cameras.

■ resolution.

• The resolution of the camera.
• WxH format.

■ framerate * The frame rate of the camera.

• The frame rate of the camera.
• The same as compositor.

■ pixel_format * pixel format of camera output.

• The pixel format of the camera output.
• For a web camera, one of the following formats.
  • MJPEG
  • YUV420
  • YUYV
  • YVYU
  • UYVY
  • VYUY
• For IP cameras, specify HEVC or H264.