Bosch Appliances VIP X1600 M4S manual Encoding interval, Video resolution, 2CIF, 4CIF/D1, Default

46 en Configuration Using a Web Browser VIP X1600 M4S

Encoding interval

The figure selected here determines the interval at which images are encoded and transmitted. For example, entering 4 means that only every fourth image is encoded, the following three are skipped - this can be particularly advantageous with low bandwidths. The image rate in ips (images per second) is displayed next to the text field.

Video resolution

Here you can select the desired resolution for the video image. The following resolutions are available:

–QCIF

176 × 144/120 pixels

–CIF

352 × 288/240 pixels

–1/2 D1

352 × 576/480 pixels

–2CIF

704 × 288/240 pixels

–4CIF/D1

704 × 576/480 pixels

–2/3 D1

464 × 576/480 pixels

Default

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

Details

Clicking the Details >> button displays further details on image quality and data transmission. These settings require extensive knowledge of the MPEG standard and video data compression. Incorrect settings can render the video images unusable.

Maximum data rate

This maximum data rate is not exceeded under any circumstances. Depending on the video quality settings for the I- and P-frames, this fact can result in individual images being skipped. The value entered here must be at least 10% higher than the value entered in the Target data rate field. If the value entered here is too low, it will automatically be adjusted.

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.

Video quality

This setting allows you to adjust the image quality. The Auto option automatically adjusts to the optimum combination of movement and image definition (focus). Alternatively, you can use the slide control to select a value between 1 and 100. A value of 100 results in a very high refresh rate and lower image quality.

H.264 deblocking filter

You can activate a filter that reduces blocking in the image in the case of H.264-encoded video streams, thereby providing a smoother image. Please note that this option requires additional computing power.

DOC V4.0 2009.06 Installation and Operating Manual Bosch Security Systems