Bosch Appliances 700 user manual Encoder Streams

AutoDome 700 Series IP PTZ Camera Configuring the AutoDome 700 Series en 35

Encoding Interval

The figure selected here determines the interval at which images are encoded and transmitted. The image rate in ips (images per second) is displayed next to the text field. Use the slide bar to select a frame rate from 30.00 ips to 1 ips.

Expert Settings

Use the expert settings to adapt the I-frame quality and the P-frame quality to specific requirements, if necessary. The setting is based on the H.264 quantization parameter (QP).

GOP Structure

Select the structure you require for the Group of Pictures here. Depending on whether you place greater priority on having the lowest possible delay (IP frames only) or using as little bandwidth possible, you can choose between IP, IBP, and IBBP.

I-frame Distance

This parameter allows you to set the intervals in which the I-frames will be coded. 0 means auto mode, whereby the video server inserts I-frames as necessary. An entry of 1 indicates that I-frames are continuously generated. An entry of 2 indicates that only every second image is an I-frame, and 3 only every third image etc.; the frames in between are coded as P-frames.

I-frame Quality

This setting allows you to adjust the image quality of the I-frames. The basic setting Auto automatically adjusts the quality to the settings for the P-frame video quality. Alternatively, you can use the slide control to set a value between 9and51. The value 9 represents the best image quality with, if necessary, a lower frame refresh rate depending on the settings for the maximum data rate. A value of 51 results in a very high refresh rate and lower image quality.

P-frame Quality

This setting allows you to adjust the maximum image quality of the P-frames. The basic setting Auto automatically adjusts to the optimum combination of movement and image definition (focus). Alternatively, you can use the slide control to set a value between 9and51. The value 9 represents the best image quality with, if necessary, a lower frame refresh rate depending on the settings for the maximum data rate. A value of 51 results in a very high refresh rate and lower image quality.

Default

Click Default to return the profile to the factory default values.

4.20Encoder Streams

Select the property and default profile for each H.264 stream and set the parameters for the M-JPEG stream.

–H.264 BP+ bit-rate-limited

Select this setting when using hardware decoders. The bit rate is limited to 1.2 Mbps. CABAC: off

CAVLC: on

GOP structure: IP

I-frame distance: 15

Deblocking filter: on

Bosch Security Systems, Inc. User Manual F.01U.273.798 3.0 2012.08