User Manual
Pearl-2 User Guide                                      Configurationkeys forthirdparty APIs
Key Values Description
slicemode
on 
empty string ("") 
Enables or disables H.264 slicing for RTP. To enable slicing, set 
to on. To disable slicing, set to empty string  (""). 
vbitrate
Integer 
Gets or changes the video bit rate in kbps. 
vbufmode
1 (low delay) 
2 (storage) 
Specifies the broadcast compression level.
For low delay when streaming, specify 1. 
For best results or recording, set to 2. 
vencpreset
0 (Software) 
5 (Hardware 
Accelerated) 
Specifies a video encoding preset. 
For software, set to 0. 
For hardware acceleration(recommended), set to 5
vkeyframeinterval integer
Interval time in seconds between key frames in the encoded 
stream.
vprofile
66 
77 
100 
Specifies the h.264 video profiles. 
For Baseline profile, select 66. 
For Main profile, select 77. 
For High profile, select 100. 
qvalue 0...100 Specifies quality for M-JPEG videos.
Channel layout configuration keys
To work with layouts, you need to know the integer identifier of the layout. To find your layout's identifier, 
select the layout using the Admin panel and look for the identifier in the browser's url.
442










