Record; Encode - Value-Top VT-1104WL User Manual

5.2 Record

This menu allows you to configure the recording parameters

5.2.1 Encode

This menu allows you to configure the recording video or network transmission picture quality.
Generaly, Mainstream defines the recording video quanlity which will be saved in the HDD;
Substream defines the video quality which is being viewed via remote access, for example web
client & CMS; Mobilestream defines the video quality which is being viewed via remote access via
mobile devices.
Resolution: This parameter defines how large the recorded image will be.
FPS: This parameter defines the number of frames per second the DVR will record.
Video Encode Type:
Bitrate Control: Select the bitrate level. For a simple scene, such as a gray wall is suitable
constant bitrate (CBR). For more complex scene, such as a busy street is suitable variable bitrate
(VBR).
Bitrate Mode: If you want to set the bitrate by yourself, then choose User-defined mode. If you
want to select the predefined bitrate, choose Predefined mode.
Bitrate: This parameter corresponds to the speed of data transfer that the DVR will use to record
video. Recordings that are encoded at higher bitrates, will be of better quality.
Audio: Select this option if you want to record audio along with video and have a microphone
connected to the DVR or using a camera with audio capability.
ARM: If ARM option is checked, this channel will be recorded in maximum frame rate & bitrate
when an alarm (motion or I/O alarm) happens to this channel.
For IP camera only. DVR support H.264 IP camera only. If you choose H.265,
live view screen of the IP channel will display "Decoding
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Failed".