D-Link DCS-6112 User Manual page 32

Configuration
Video Quality Settings for Streams 1~4
Compression Type: The compression level affects the amount of bandwidth and
storage required. Lower compression uses more bandwidth and storage but delivers
better image quality. Of the three options, H.264 consumes much less network
bandwidth compared to MPEG-4 and JPEG.
Frame Size: Select proper frame size for different viewing devices, bigger frame size
requires more bandwidth and storage usage. For smaller viewers, such as mobile
phones, a smaller frame size and lower frame rate is recommended. There are 12
options you can select: 320x176, 320x240, 480x270, 640x360, 640x480, 800x450,
800x600, 1024x768, 1280x720, 1280x960, 1440x1080, 1920x1080, if there is no
viewing window applied. (320x176 for mobile phone. 1280x720 or 1920 x 1080 for
HD display.)
Maximum Frame Rate: This option affects the smoothness of the video. Select a
higher frame rate for smoother video quality, but it requires more storage. Ten options
to select from: customize, 1, 2, 3, 5, 8, 10, 15, 20, 25, 30 fps (30 fps is recommended
real-time video on a computer monitor. 5 fps is ideal for mobile viewers.)
Intra Frame Period: The shorter the duration of the Intra Frame Period, the more
likely you will get better video quality, but at the cost of higher network bandwidth
consumption. Select the intra frame period from the following durations: 1/4 second,
1/2 second, 1 second, 2 seconds, 3 seconds and 4 seconds.
Video Quality: This setting limits the maximum refresh frame rate.
• Constant bit rate: To set a fixed bandwidth regardless of the video quality, select
Constant bit rate and the desired bandwidth from 40 Kbps to 6 Mbps. You can
also select Customize and manually enter a value.
• Fixed quality: The video quality can be adjusted by selecting one of the
following: Medium, Standard, Good, Detailed and Excellent. You can also
select Customize and manually enter a value.
D-Link DCS-6112 /6113 User Manual 32