Please select a channel from the dropdown list.
SVC is so called scaled video coding. Check the box to enable
this function. During the network transmission process, system
discards unimportant frames when the bandwidth is not
sufficient or the decode capability is low. It is to guarantee video
quality and transmission fluency.
Check the box here to enable extra stream video. This item is
enabled by default.
It includes main stream, motion stream and alarm stream. You
can select different encode frame rates form different recorded
events.
System supports active control frame function (ACF). It allows
you to record in different frame rates.
For example, you can use high frame rate to record important
events, record scheduled event in lower frame rate and it allows
you to set different frame rates for motion detection record and
alarm record.
Select Start from the dropdown list to enable smart codec
function. The DVR can auto reduce the video bit stream of the
non-important surveillance object to save the storage space.
Compression: System supports H.264H, H.264, H.264B, and
MJPEG.
H.264H: It is the High Profile compression algorithm. It has
the high encode compression rate. It can achieve high
quality encode at low bit stream. Usually we recommend
this type.
H.264 is the general compression algorithm.
H.264B is the Baseline algorithm. Its compression rate is
low. For the same video quality, it has high bit stream
requirements.
For analog channel, system supports various resolutions, you
can select from the dropdown list. Please note the option may
vary due to different series. For digital channel, the resolution
here refers to the capability of the network camera.
PAL:1~25f/s;NTSC:1~30f/s.
Main stream: You can set bit rate here to change video
quality. The large the bit rate is , the better the quality is.
Please refer to recommend bit rate for the detailed
information.
Extra stream: In CBR, the bit rate here is the max value.
In dynamic video, system needs to low frame rate or
video quality to guarantee the value. The value is null in
VBR mode.
Recommended bit rate value according to the resolution and
frame rate you have set.