Selecting the Right Bit Rate for CBR Cameras

Author: John Honovich, Published on Mar 12, 2012

Some of the most popular cameras on the market, like Panasonic and Sony, are especially tricky to configure the right bit rate. In our experience, because of these camera's use of Constant Bit Rate, most deployments significantly waste bandwidth in real world usage. This note explains the issues involved and how to overcome this problem.

Background

**** ****** ************* **** ******* ******** *** **** (***) *********, generally **** ** ****** ******* ***** *****. **** ***, *** camera **** ****** ****** ** *** **** ********* ***** ********** of *** ***** ** **********. *** ** *******, ********* *** Sony ********* *** ***** ******* *** ***** ** ****** ***/* or ***/* (********* ** *****). ******* *********, **** *** **** assumes *** *** ** ******* ***** **** ** *****.

[******: ********* *** ***** *** ********* **** *** ********. **** call ** '**** ******'. ** *** ** *** **** ** in **** ******'* ************* ****, ******* ** *** **** ****** firmware.]

**** *****, *******, **** *** ************* ***** ***** *****. *** average ***** **** ****** ***** ***** ** ******* * - ** *** - **-**% **** **** *** *** ***** ****. ********* *********** scales ****** ******** - ** *** ***** **** *****, *** rate ****** ***** ** * ************* ***** (*** ************ ** ***** **** *******).

Problem *** ********

*** ********* ******* ** **** **** ***** **** **** *** frame **** *** *** *** *** ****. ** * ******, you *** **** * ****** *** ** **** ** ***/*. This ** ****** *********** *** ****** ***** ***** ********. *** plus **** ** **** **** ***** ******* ****** **** **** (assuming ****** ** ** *****, ***.). *******, * *** ** bandwidth ** ***** ******. *** ***** **** *** *** **** to ***/* ** **** *****/* *** *** *** **** ****** quality.

**** ****** **** ***** ** ***** ********* ***/* - ***/*, this ** ******** ** ******* **** ***** **** ***** *** typically ******* * ******** ****** ** ****** (****** *******, **** driving *******, ***.). *******, ** *** ** *** ***** **** frame **** ***** (**** **** ******), ***/* - ***/* ** almost ********* *** ****.

The '*****' ***** *** ****

*** *** *********** ******* ********* **** *** ** ******* *** 'exact' ** *** ******* ***** *** ****. ********* ** *** HD ****** ** ****, ***/* ** ********** *** **** *** it ** **** ** *** ******* *****/*, *****/* ** ***/* is *****. ** ** ************ ** ************ ** ***** ******* ********, *** '****' ***** ******* ** *** ****** ** *** scene - * ******* ***** ** **** **** *****/* *** a ******* *** ***** **** ***/*. 

******* *** ***** ***** ******* ** ************* **** **** *** and ** * *** ****** *** *********** *** *** *** **** * *** ** ******** ************. *** ***** *** *** **** *** ********* ***** **** with *** ***** **** ****. ***********, * ****** ** *** most ********* *******, **** ********* *** ****, **** *** ***. If *** *** ***** ** *** ***** *******, ** ** imperative **** *** ******** ********** *** ******** *** *** ** CBR.

Login to read this IPVM report.
Why do I need to log in?
IPVM conducts unique testing and research funded by member's payments enabling us to offer the most independent, accurate and in-depth information.

Related Reports

Arecont Vision MicroDome Duo Tested on Feb 14, 2017
Arecont Vision is back with another multi-head camera, this time thinking smaller with the MicroDome Duo, a two-imager model, with the tagline...
Alarm Panels - Canned vs Integrated on Feb 07, 2017
Alarm control panels generally come in one of two types: Integrated alarm controllers, with controls and the keypad in the same...
LAST DAY - Camera Course Winter 2017 on Feb 02, 2017
[NOTE: Today, Thursday is the last day to register.] Learn video surveillance and get certified. IPVM provides live online classes, recorded...
Arecont Lowest Favorability Results on Jan 25, 2017
Given Arecont is 3 time defending integrator choice for worst camera manufacturer, it should be little surprise they had the lowest score in the...
IP Networking Course January 2017 on Jan 12, 2017
This is the only networking course designed specifically for video surveillance professionals plus it includes live training, personal help and...
Avigilon Pro 4K Camera Tested on Jan 03, 2017
Avigilon is best known for their large sensor, high megapixel cameras. But with new offerings from Sony and soon Axis, the questions is how well...
IP Networking 2017 Book Released on Jan 02, 2017
The new IP Networking Book 2017 is a 197 page in-depth guide that teaches you how IT and telecom technologies impact modern security systems. The...
Hikvision No on H.265 But Pro On H.265+ on Jan 02, 2017
Hikvision said H.265 was a 'solution in search of a problem' a half year ago but now they are getting bullish, embracing H.265+. In this report,...
Surveillance Cameras 2017 Review on Jan 02, 2017
This report concisely explains the developments and most common options for surveillance cameras offered in 2017, including resolution, H.265, HD...
Calculating Video Surveillance Storage / Bandwidth on Dec 29, 2016
Calculating surveillance bandwidth is complex, and inexperienced users can easily underestimate bandwidth, leading to reduced storage durations...

Most Recent Industry Reports

'Dirty': Hikvision Attacks Genetec on Feb 20, 2017
Hikvision is angry at the growing public awareness that Hikvision is owned by the Chinese government. They took aim at Genetec,...
Directory of Alarm Company Brokers on Feb 20, 2017
Selling an RMR based business, such as alarm company, can be highly profitable, with acquisition prices of 36 to 48x RMR (equivalent to 3 to 4x...
Hikvision Hiring 50, Direct Out of College, Sales People on Feb 20, 2017
Hikvision is hiring 50, direct out of college, field sales people across the country. This is the next major expansion for the Chinese...
Simplisafe is 'Blowing The Doors Off' on Feb 17, 2017
The company alarm dealers love to hate, Simplisafe, is 'blowing the doors off' according to Michael Barnes, one of the top financial advisors in...
Hikvision OEM DDNS Devices To 'Lose Remote Access' on Feb 17, 2017
The fallout of Hikvision's DDNS discontinuation is expanding, this time hitting OEM partner Supercircuits, who reports that on June 30th: The...
Milestone: "Easy Money Days Are Over" on Feb 17, 2017
Contrary to IPVM's criticisms, Milestone has reaffirmed that glory days remain. But they admit that they 'easy money days are over': Are the...
Directory of Alarm Panel Manufacturers on Feb 16, 2017
Alarm panels are the central controller of intrusion systems. The following is a list of manufacturers of alarm panels. This directory only covers...
Panasonic Favorability Results on Feb 16, 2017
Panasonic is one of the largest brands in the world and a long term provider of both video surveillance imagers and cameras. But, like all...
Hikvision Silicon Valley and Canada R&D Expansion on Feb 15, 2017
After massive growth in their sales team, Hikvision is now planning to add two new R&D centers in North America. In this report we examine...

The world's leading video surveillance information source, IPVM provides the best reporting, testing and training for 10,000+ members globally. Dedicated to independent and objective information, we uniquely refuse any and all advertisements, sponsorship and consulting from manufacturers.

About | FAQ | Contact