Vivotek IP6117, IP6127 manual Video Codec Parameters

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Video Codec Parameters

“Text on video” The text will be displayed in the black bar above the video window with a timestamp. The timestamp is captured from date and time of the Network Camera that is maintained by a built-in real-time clock.

“Color” Select either for color or monochrome video display.

"Size" There are five options for three video sizes. “Half” is the quarter size of “Normal” and “Normal” is the quarter size of “Double”. “Half x 2” has the same video size as “Normal” but of a lesser quality, while consuming less network bandwidth. “Normal x 2” has the same size as “Double” but of a lesser quality.

“Video codec type” It can be either MJPEG or MPEG4. In MJPEG mode, the video frames are independent. In MPEG4 mode, there are I frames and P frames. To decode a P frame need the information of previous frame. MPEG4 consumes much less network bandwidth than MJPEG.

There are five dependent parameters provided for video performance adjustment. "Maximum frame rate" This limits the maximal refresh frame rate, which can be combined with the "Video quality control" to optimize the bandwidth utilization and video quality. If the User wants to fix the bandwidth utilization regardless of the video quality, choose "Fix bit rate" and select the desired bandwidth. MPEG4 video are composed by I frames and P frames as the following sequence. IPPPPPIPPPPPIPPPP… “Key frame interval” determines how many repeated P frames will appear after one I frame. Large “Key frame interval” can reduce the bit rate, but cause image corrupt longer if there is packet loss while transmission. “Fix bit rate” option and “Key frame interval” option are only available in “MPEG4” mode. The video quality may be poor due to the sending of maximal frame rate within the limited bandwidth when images are moving rapidly. Consequently, to ensure detailed video quality (quantization rate) regardless of the network, it will utilize more bandwidth to send the maximal frames when images change drastically.

"Flip" Vertically rotate the video.

"Mirror" Horizontally rotate the video. Check options both if the Network Camera is installed upside down.

“Improve efficiency in the multi-user environment” Check this option to

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Contents Page Technical@vivotek.com Sales@vivotek.com Before You Use This Product Package Contents Table of Contents Http Appendix To install in Ethernet Hardware InstallationTo install in wireless LAN Software Installation 886-2-82455282 886-2-82455532 886-2-82455282 886-2-82455532 886-2-82455282 886-2-82455532 Installing Plug-in Initial Access to the Network CameraAdd Password to Prevent Unauthorized Access Check Network SettingsAuthentication How to UseMain Screen with Camera View Primary User’s CapabilitiesCamera view ConfigurationBoth Client Settings886-2-82455282 886-2-82455532 Fine-tuning for Best Performance Administrator’s CapabilitiesOnly Quality Images Will Do For Best Real-time Video ImagesSelect for Motion Jpeg Somewhere Between Real-time and Clear ImagesOpening Accounts for New Users Protect Network Camera by PasswordsMore Flexible Options for Viewers Demo on Multiple Sites Mid-scale ServiceProduct Demo for E-business Large-scale Service Build a Multimedia Web Attraction SiteIf the web space has FTP service If the web space has no FTP service Image URL Build a Security Application Send Snapshots When Motion is Detected 886-2-82455282 886-2-82455532 Definitions in Configuration System Parameters User Group Administration 886-2-82455282 886-2-82455532 Edit User General Network SettingsStreaming Http886-2-82455282 886-2-82455532 Wireless耟 886-2-82455282 886-2-82455532 Ddns & UPnP 886-2-82455282 886-2-82455532 Smtp Mail & FTP886-2-82455282 886-2-82455532 886-2-82455282 886-2-82455532 Video Codec Parameters 886-2-82455282 886-2-82455532 Contrast, Hue Image SettingsCCD Settings Audio 886-2-82455282 886-2-82455532 Motion Detection 886-2-82455282 886-2-82455532 Event Operation Application SetupWeekly Schedule Sequential Operation FTP Naming rule of snapshot file886-2-82455282 886-2-82455532 Viewing System Parameters Factory DefaultViewing System Log Appendix TroubleshootingFrequently Asked Questions 886-2-82455282 886-2-82455532 886-2-82455282 886-2-82455532 Style convention URL commands of Network CameraOverview Method GET/POST General CGI URL syntax and parametersGet server parameter values Example request IP address and it’s response Nosync Set server parameter valuesAvailable parameters on the server WirelessNetwork Camera With Pan/Tilt/ZoomHhmmss Skip to invoke default serverYyyy/mm/dd Blank 255.255.255.0 192.168.0.99Than 40 characters Mailto2 Text String 5003 5002 Group Wireless restartDefault 0000000000 AutoShort Open120 For Ntsc only 3840008000 Save Directly save the adjust image Parameters Group CCD Ntsc & Cmos Enable Enable or disable the Upnp service Group App Script.vssx Application page CGI commandSun Fri Drive the digital output ResetdoQuery status of the digital input Query status of the digital output Capture single snapshot Account managementPrivilege=dido&privilege=listen EditSystem logs Configuration fileSystem Information 886-2-82455282 886-2-82455532 Features Technical SpecificationsMPEG-4 Visual Technology Technology License NoticeLiability Electromagnetic Compatibility EMC