D-Link DCS-6112 User Manual page 33

Configuration
Video Quality Setting for Stream 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 MPEG4 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 7 options you can select: 176x144, 384x216, 640x360, 1280x720, 1360x768,
1600x904 and 1920x1080, if there is no viewing window applied. (176x144 for
mobile phone, 1280x720 and 1920 x 1080 for HD display).
Frame Rate: This option affects the smoothness of the video. Select higher frame
rate for smoother video quality but it requires more storage usage. 10 options for
selection: customize, 1, 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: Determines the frequency and I frame is planted. The shorter
the duration, 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 20 Kbps to 8 Mbps.
You can also select Customize and manually enter a value.
• Fixed quality: To optimize the bandwidth utilization and video quality. The
video quality can be adjusted to the following setting: Medium, Standard,
Good, Detailed and Excellent. You can also select Customize and manually
enter a value.
D-Link DCS-6112 /6113 User Manual 33