20
IND101057-27
3 Feb. 2021
Hatteland Technology AS | www.hattelandtechnology.com | Enterprise no: NO974533146
Page 20 of 66
1,2,3,4,5,6,8,10,15,20,25, 30 and 60 frame rate can be selected. The actual frame rate of
video can be less than the maximum frame rate set due to the network bandwidth
limitation
-
Preference
Select encoding mode to control video quality or bitrate: Quality(VBR) or Bit rate(CBR
and Hybrid). If ‘Bitrate’ selected, the video encoding will be effected by the ‘Bitrate’ value
entered. Therefore, “Bitrate” mode corresponds to
CBR (Constant Bit Rate) or Hybrid
(Hybrid Constant Bit Rate) encoding. If ‘Quality’ selected, the video encoding will be
effected by the quality of image selected. Therefore, “Quality” mode corresponds to VBR
(Variable Bit Rate) encoding
-
Quality
Select Video quality. 8 levels of quality are available.
Quality mode (VBR encoding) tries to encode every frame in a constant quality.
Therefore, resulting bitrate may vary a lot depending on the complexity or activity
changes in the input video. It is preferred when constant video quality is required and
network bandwidth is enough for delivering the stream of highly varying bitrate.
-
Bitrate
Determine bitrate value between 32 ~ 16Mbps.
Bitrate mode (CBR encoding) allows you to set a fixed target bitrate that consumes a
predictable amount of bandwidth. In order to keep the bitrate limit, video quality is
controlled dynamically according to the complexity or activity changes in the input video.
Bitrate mode (Hybrid encoding) allows you to set a maximum bitrate. Bitrate does not
exceed the set bitrate but it can be decreased automatically when the scene complexity
is decreased. This mode allows you to control the bandwidth efficiently.
-
I-Frame Interval
Determine I-frame Interval between 1 and 255.
-
ROI (Region of Inter
est) Enable
Select
ON
to encode only preferable part of the scene. Drag a mouse on the image in
order to set a area that you prefer to encode. This mode allows you to save over 30% of
bitrate and result in saving cost of storage more than 30%.
