Vivotek IZ7151 User Manual download pdf (Page 86)

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86 - User's Manual

10 => 18dB

11 => 20dB

12 => 22dB

13 => 24dB

14 => 26dB

15 => 28dB

s<0~(m-1)>_codectype mpeg4,

mjpeg

1/4 Video codec type.

s<0~(m-1)>_resolution 176x144,

320x240,

640x480

1/4 Video resolution in pixels.

s<0~(m-1)>_mpeg4_in

traperiod

250, 500,

1000,

2000,

3000, 4000

4/4 Intra frame period in milliseconds.

s<0~(m-1)>_mpeg4_ra

tecontrolmode

cbr, vbr 4/4 cbr, constant bitrate

vbr, fix quality

s<0~(m-1)>_mpeg4_q

uant

1~5 4/4 Quality of video when choosing vbr in

“ratecontrolmode”.

1 = worst quality, 5 = best quality.

s<0~(m-1)>_mpeg4_bi

trate

20000

30000

40000

50000

64000

128000

256000

384000

512000

768000

1000000

1200000

1500000

2000000

3000000

4000000

4/4 Set bit rate in bps when choose cbr in

“ratecontrolmode”.

20000 => 20 Kbps

30000 => 30 Kbps

40000 => 40 Kbps

50000 => 50 Kbps

64000 => 64 Kbps

128000 => 128 Kbps

256000 => 256 Kbps

512000 => 512 Kbps

768000 => 768 Kbps

1000000 => 1 Mbps

1500000 => 1.5 Mbps

2000000 => 2 Mbps

3000000 => 3 Mbps

4000000 => 4 Mbps

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