Datavideo KMU-200, Instruction Manual

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
6M

4M

2M

1M

512K

256K
Recommended video bitrates

720P or lower – 8 – 10 mbps

1080P or higher – 15 mbps or higher
Encoder Mode
The Encoder Mode sets the video bitrate mode for your recording. The available modes are
listed as follows:

High (8M)

Medium (4M)

Low (2M)
Tip: You can also switch between different bitrate modes by pressing the Bitrate button in
the H.264 Encoder button group. See Section 5.4 for details.
Profile
Profile
sets the H.264 encoding profile for your recorder. The available options are Baseline ,
Main , and High . Typically, High profile provides the best image quality and is suitable in
most instances. However, depending on the decoder used when viewing the recording, a
Main or Baseline profile may be required.

High

Main

Baseline
Level
Levels specify the size of the video a decoder must be able to handle. They specify a
maximum bit-rate for the video and a maximum number of macroblocks per second. Level
numbers range from 1 to 5 with intermediate steps (e.g., 1.1, 1.2, 1.3 and etc). The table
below provides a summary of maximum parameters supported by each H.264/AVC level.
Level ID Max. Video
Bitrate in
kbits/s Max Frame
Size in
macroblocks Max decoding speed
in macroblocks per
second Resolution, Frame Rate
(Max Stored Frames)
1.0 64 99 1485 128×96@30.9 (8)
176×144@15.0 (4)
1b 128 99 1485 128×96@30.9 (8)
176×144@15.0 (4)
1.1 192 396 3000 176×144@30.3 (9)