VMS Multistreaming Comparison

Author: Sarit Williams, Published on Jul 11, 2013

With megapixel now mainstream, surveillance systems need to deal with unprecedented loads of live video display and recorded storage. One emerging technique for VMSes to handle this is using multistreaming.

Three main benefits exist:

  • Reducing load on viewing PC
  • Reducing demand on low bandwidth connections
  • Reducing storage consumption for long term archiving

However, VMS manufacturer's implementation of multistreaming varies significantly. In our study, we have found 7 main differentiators:

  • Automatic switchover of streams
  • Manual override / selection of streams
  • Display of stream selected / details
  • Cameras supported for multistreaming
  • Total streams supported
  • Digital zoom with multistreaming
  • Multi-stage archiving support

We evaluated Avigilon, Exacq, Genetec, Milestone, Network Optix and Video Insight to appreciate those differences and understand competitive positioning.

**** ********* *** **********, ************ ******* **** ** **** **** unprecedented ***** ** **** ***** ******* *** ******** *******. *** emerging ********* *** ***** ** ****** **** ** ***** **************.

***** **** ******** *****:

  • ******** **** ** ******* **
  • ******** ****** ** ***********************
  • ******** ******* *********** *** **** **** *********

*******, *** ************'* ************** ** ************** ****** *************. ** *** study, ** **** ***** * **** ***************:

  • ********* ********** ** *******
  • ****** ******** / ********* ** *******
  • ******* ** ****** ******** / *******
  • ******* ********* *** **************
  • ***** ******* *********
  • ******* **** **** **************
  • *****-***** ********* *******

** ********* ********, *****, *******, *********, ******* ***** *** ***** Insight ** ********** ***** *********** *** ********** *********** ***********.

[***************]

Benefits / ************

******** **** ** ******* **

******** **** ******* ************** ** * ** *** ******* ******** it, ******* *** ** ** *** ***** ***** ** ******. Worse, ***** *****'* **** *** ******* *** *********, ** ** wasteful ** ******* * ** * ** **** **** ** side ** * *******, ***** *** ***** ****** ** *** cameras *** *** ******* **** *** ******* **** *** *******. While *** **** ** **** *** **** ** ****** *********, always ********** ** **** *** **** *****.

**** **************, ** ******** *** ** ********** ** ******** ** display *** ******* ******* **** ** ****. **** *** *** load ** **-**% ***** ****** ** ****** ** ******* ******* (since **** ********** ***** ** ********* ** * ***** ****). However, **** *** ***** ** ********* **** ******, *** ****** can ** ******** ** *** **** ******* *** ** **** advantage ** *** ****** ******* ****.

******** ****** ** *** ******** ***********

**** ********* ** ***, ******* **** **** ******* ******* *** actually **** ****** *****, ** ***** ****** ** ********** ***** often ****** ** *** ***** ****** ***** **. *******, **** multistreaming ********* ***** ** ************* ******* ***** *** ********* ****** are * **** ******* ********** ***/** *** ********** ** *** number ** ******* ****** ** ****.

******** ******* *********** *** **** **** *********

************** ****** ******* ********* ********* ********* *** ******* ******** *** stream. *****, ******** ******* ** ****** ** ***** *** ***** quality ******* *** ***** ****** ******* *** *** ****** ******* videos ** *** ***** ** ** ******** ***** ****** ** important.

***************

****'* ** *********** ** *** *** ***************.

********* ********** ** *******

**** ***** **** ************* ****** **** **** ****** ** ***** quality ******* **** *** **** ******* **** ****** ****** ** multi-camera *****. ****** **** ******* *** **** ** ******** ******, which *** ****** ********** *** *********.

****** ******** / ********* ** *******

**** ***** **** ***** ********* ********* ** *******, ****** *** decision *** *** ****. ****** **** ***** ****** ********* ** specific ******* ** ******** ***** *** ********** *****. ******* ***** allows *** ******* ** * ****** ** ** ******** ** once, *** ******* *** ********* ********* ** **** **** ** single ****** ****. ******** **** *** ***** ****** ******** ** all.

******* ** ****** ******** / *******

***** *** **** ** **** ***** ****** **** *** ******* in **** **** **** ** ****** ** *** ****** *******. Some ***** ******* **** ** ****** ** **** * ****** click. ****** **** ** **********.

******* ********* *** **************

** ******** ** *** ****** ********** ******** *******, *** *** needs ** ********* **** ***** *******. **** ***** **** ******** limits ** ***********. *** *******, ******** **** *** ********* *****-********* with **** *** ***** ******* *** ****** *********** **** ****** those ******* *** ******** ********** *** ******* ***.

***** ******* *********

**** ***** **** ******* * ******* - * **** *** low, ********* ******** ** *** ***. *******, **** ***** ****** fine ***** ************* ** * ** **** ****** ********. ******* offers *** **** ************* ****.

******* **** **** **************

**** * *** ******* ****** ** ***** ********* *** * user ********* ***** **, ** *** *** **** *** ****** to *** **** ******* ******, *** ******* **** ** ***** ineffective. **** ***** ******* *** **** ** ***** ****** ** a **** ******* ****** (********* ** ********** **** **** ******). Others, **** *****, **** ************* ****** **** ** * **** resolution ******, **** ** * ******* ****.

*****-***** *********

**** ******** ******* ** ********* ******* ******, **** ***** ***** recording * ****** ********** *** *** ***** ******* *** *** lower *** *** ****** *******. ************ ** *** ******* ********* that **** *** ******* ****, *** ****** ****************** *** **** *** *** ********** *******.

Manufacturers ********

********

********'* **** ********* ******* ** ******** *** ********'* *.*** ******* and ************* ******** ******* **** *** *** ******* ** **** view. *******, ***** * ********* ****** *** *** ******* **** directly *********** **** *****, ** *** **** ***** ***** (**** ONVIF *** ***) *** ****** **** ** ***** *** *******.

******* **** **** *** ****** ** * ****** ********** **** digitally ******* ** ******* *** ** ***** *******. ****, ****** information / ********* ** *** *********.

*****

************** ** ********* ** *** ******** **** *** ********* ** Exacq ****** *****. ****** * ****** ** **** **** *** camera ********** ****** *** ** ******* *** **** ** *** number ** ******* *********. **** ********* ** *** *******, ***** from ***** ****** ** * ****** **** ***** **** *** optimized ****** ***** ******** * ****** ********. **** ******* *******, a *** ******* ****** ** ************* ******** ** * **** quality ***.

*******

******* ****** *** **** ******** *** ******** *** ***** **************. Each ****** ***** **** **** ******* ******* **** *** ** associated **** ** ** * ********* ****** ***** *****: ****, Recorded, ****, ***, *** ******. *** *** **** ************* ****** to * ********** ****** ****** **** ******* ******* *** **** is ****** ** *****, *** *** *********. *** ** ******** which ****** ** ****** *** ****** *** * ****** ******** by *** **** ** *** ****. ******* **** ****** * multi ****** ****** **** ****** ** * ****** ********** ** take ********* ** *** ********** **** ****** * ****** ****** view ** *** ****.

***** *** ** ********** **** *** **** *******,*** ** ** available ** *** ** *******'* ********.

*********

********* ******** ************** ** *** ******** ********* ******* **** (****/******** stream ****** ** ********* ** ***** ********) **** ** ********** licensing *****. ** ***** ** ** **** ******* ** *** camera ******** *** ****** ** ***** ** ********* **** * particular ****** ****** ** **** (***** *********** ****); ****, ********, or ** *******. *** *** **** ***, *******, ******** ******** the ******* ****** ********* *** ** *** *****.

**** ** *** ************* ****** ****** *********:

**** ** *** ****** ****** ****** ******:

******* *****

**** *** ***** ** **** **** *** *** ******* ************* via ***** ******* *. ** ******** ** ********** ********. ******* zoom ** *** ********* ** **** ******* *** ******* ** low ****** *** ** ********** **** * ***** ** ******* in *** ***** ** ******, ******* ** ******* ** ****** the ****** ******'* **********. ***********, ********** ***** ****** ******* **** randomly ****** ***** ****** (****/***) ** **** ** ***** **** based ** *** *** ** *** ***** *** ***** -** not ** **** ****** ** **** *** ****** *****. ****, if ********* ** *** *** *** ***** **** **** ********* real **** **** ** **** ************ *** **** ********* *** stream ******* **** ****** ******** *** *** ****** ** *****.

***** *******

***** *******'* ************** ******** *** **** ** *** * ******** key, *** *** ****** ***** *** ********* **** **** ********* bitrate *** ***. **** ***** **** ******* **** ** ********** together ** ***** *** *** ********* ********* ** ***** ** layout ****. ***********, ******* *.*.** ******** * ******* *** ** additional ******(**** ******).

Comments (23)

**, **** ******. ** **** * ***** **** ******* *** to ****** *** ******* ***** ******/*****/******** ** ************ ** ******* more ** **** ******* **********.

*******, **** ********* ** ************ ** ************** (****: *** ************ *** ************ ********).

***** *** ***** *** *******, *** ***** **** **** *** different. ** * ***** **** ** *****:

  • **** ** ************ ******* ** * ****** ****** - *** multicast
  • **** ** ******* ***** ****** ************** ** * ****** ** - *** **************

****, **** *** ************* *** **** ***** ** ********** *********** to ****** *** ********* *** ****** ******* *** **** **** of ** ******* **** ******* ********* ***********.

**** *** **** ****** *** *** ** ** *** **** did **** *******?

**** *********** ** **** ****** ** ******* :

**** ** ****** *** ********** ** ** ** **** *****.. use **************

*** ****** ***** ******** ***** ** ****** ******* ** *** res : *** **************

********* ******* ****** ***** **** *** ********* ( ** ** Dsl) : *** **************

****** ******* ** *** **** ****** ****** *** *** ** Cloud : *** ***** *********

** *** ***** ******* *** ******* ** * ******** ****** with *** * ********* ***** ** *** **** *** ****** you **** ******** * ****** ******** ** ** **** *** 64 * * ***** ** **** *** *** ***** ....

******,******'* **** ************** ******** ** ****, *** ******** ** ********** $*** *** camera's *********** *******. *** ************** ******* ** * **** *********** integrated ******** ** *** ******* ***** **** ** ********** ******** required,and ** ******* ** ******** ******** *** **** ** **** of **** ******.

****, ***** **** ******** *** ******* ** ********* *** ******** of **************? ***** ******** ********* *** ***** ** ******** ********** (starting ** ******* *.* * *******) *** ** **** ******* significant *********** ************ ** *** ****** ***. ********* ** ****** one *** ********, ********* ***'*! *** ****** ** **** ***** their *********** ****** ** * **** **** ** ***** - slight ******** ******* :) *'* ** ********** ** *** **** feature ********* *** ******** ******* ******.

**** ********** *** ******* ** ***** ** ****** ***** ****... 9 ***** ***!

****, *** *** ** *** ***** ********* ******** ******* *** cameras **** *.*** *** (******** ***** *****)? *** ****** ********** of ***** *********** **** ** ******** ****** ******* ****** ** decode *** ******** ******, ****** ** *** ******. *********** ***** SVC ***** ***** **** ** *** ******, *** ******** **** add **** ** *** ****** ********, ** **** ** *** total ******, *** **** ** ******.
**** ******* ******* *** ******* ***-* (* *** ********), ***** means **** *** *** ******* ***** ***** **** *******, *** that ** **** ****** ** **** **** *****.

***** : *** ****** * ********** *** **** ******* ***** offers *** -* ** *********** ** ****/***/**** ** *** ****** and ******** (****). ** **** ******* ** ** *****'* ***** access ** *********** **** ***** ***** ** **** *** *** display ****** ** . ** ***** *** ******* ********* ** what * **** *** ********** ****. (** *** **** *****) It ******** **** ** *** * ********* **** ** ******** this *** (*** **** **** ************ *** **********..)

*** *****/********** ** **** ******** ** **** ********** *** *** boxes *** ** **** ******** ** ***** ******** ******* ********* to *********** *********.

** ** ********* ************ *** ** *** *** ** **** it **** **** **** ** **** ******* *** ***'* ****** it **** *******/**********.******/****/******* *** ** ** **** **'* *** ** the ******** ** ** *******...***** ******* ** ******* *** ***** for ***** ** ******* ** *** ******

*** ** **************

*'* *** **** *** **** ******** ****** **** **** *** will ** **** (* **** **** ** ********* ** **** manufacturers). ** **** ** ** ******* ************ ** **** ******** started ** ** ********* ** **** *************. * **** **** even * ***** *** ** *** * ********* *******. *** still *** **** ******* ***** *** ** ***** **** ******* first *** ****** ******.

******* ***'* ******* *** * ****** **** *** ** **** now. **** **** ** **** *** ****** *** *** **? ( * **** ****** **’* ********* ** **** ******* ***** players *** ******** *** **** ).

**** *** *** ***** **** ** *** * *******( **** just *** ** ****** **** * ).

******** ** **** **** *** ****** ******* ****** ****** *** in **** ****. **’* ****** ***** ** ******* ****** ***.

**** ***** ** ********* **** ****** ****** **** ****** ********* and ****. **** *** *** **** – **** ********* *** usage *** **** **** ** *********.

** * ****** *** ****** **** ** **** ******* ***** second ****** ***. **’* *** * **** **** ***.

**** ****, ***** *** ******* ******* ********** ***-*, *** ** is *** **** ******.
* ***** *** ** *** * *** *** ****** ******* to *** **** *** ** ********* ** * ****** *********. What ** ****** ** *** '**** ***' **** ********** ** quality ******* - ***** ******** * **** ******* ****** **** than *** *** ******* ** *****.

* ***** ** *** ***** ** *** *********** **** ** comes ** ***** *** ***** ********** - ** **** **** 3-4 ***** ****** *.*** *** ******** ** **********. **** ***** largely ******* ** ** ********** *** ***** ******* ** *****, I *** *** *** *******. *** **** **** ** **** to ****** **** ******* *.***, ** ****? [*****]

**** ****** **** ** *** ***-**-*** ****** ********* **** *** optimize ***** ****** **** *** ****-**-*** *********** ******* ****** ********** optimization ******* ******* *** *** ***. ***** ****** ** **** on *** *****.

*** ** ******* *** *** ****** ** **** *****. ***** only * ****** *** *** **** ****** *** *********. ** the *** **** ** ** **** ******* ** - ** you **** - *** ******** ******** *** /********** *** ********* purposes (******, ****, ********) *** **** *** ****** ****** ** the **** ****** ** ********

** ************* *** ************* ***** **** ** **** ** ****** companion ** ***** ** *******.

**** **********!

******** ** ***** *** ****** ******* **: ***********, *** *** hardware *************:

***********: ***** *** * ****** ** ***/**** **** ***** ***********. Instead ** ********** ******** *******, * ****** **** ********** / high ***** **** ** ******** ** *** ******** *** **** multiple ***** ******* ******** *** ********* / **** ***. *** main *****, *** *** **** ** ******* ** *** ******* this, ** ********** ****, *** ****** ****** *********** ******.

**** ****, ** ******'* ********, ** **** *** ****** *** out *** ** ***** **** ** ** *** **** * months.

***: **** ***********, *** ** ** *********** ** **************. ******* of ******* ******** *******, ** *** ****** *** ****** ** 'broken' **, ******* **** *** **** ** ****** * ******** client *****. ****** ***********, ** ** *** *** *******. *** most **** ***** *** ***** ** ****, **** *********** *** debated **** ********. ***** ** ** *** *** ****, ******* hardly ****** ******** ** ** ************. ** *** ******* ***** supporting ** *** *** ***** *** ******* *** ******** **, it ***** ** ******. *******, ** ** *** ***** ** or **** **** **** **** *****.

** *** ** *********** ******* ********** ** *** ****** ** ***** *** *** ******** *****.

Hardware *************: As Barry mentioned, some VMSes are optimizing use of more advanced hardware or hardware features - from multithreading to GPUs / using the client machines's graphic card. We have not tested this but it certainly would be interesting to try.

*** **** ***** **** **** ********** ********** ** **** ***** are **** ****, ****** **************, ** ****** ********* *******. ** will ** ********** **** ** ***** ** *** ****** ** provide * **** ******** *********.

*** ******* ** *********** ** **** ******* *** ** **** to ********* ** ***** ****. *** **** ** *** ******* of ***** ? ***** ********** *** ***** *** **** ******** higher *** **** **** ******* *.***. *** ***** ** ********* is, ********, *** *** *********** ******** *****, ****** *************, ***** we **** ** ******** ******** ***** ** ***** ***. *** at **** ****, *** ****** *** **** ***** *** ***** recorders *********. ** ******, ** *** *** ****** ** **** time. *** *** * *** **** *********** ** *** **** "old" ******** ********** *** *********** ** ** ******. ****, ****** hope ** ** ******** ** *** ****, ** **'** **** implementation ** **** ****** *********** ** ******** ******, *** **** of ************** *** *.****** *** **** ****** ***** *** **** in **** * ******.

******* ******* ** ****** **** ****** *****. ********* *** ****** been * **** *******. ******* ***** **** **** *********** ******* we **** ** ** ** ******** *********. ** ******* ***** our ******* *** ** *** *** ***** ** *** *** VP8 ***** (**** **** ****** *******) ** ** ****** * **** **** **** ******** ****** than ***** *********** ******.

*** **** *** ****** ***** ********** ****'* **** ** *** through ***** ******* ** ****** ******* *** *** ****** ********** on *** ***. ********* ********** ** **** *** **** ****** to **** *** ******** ** ***** ********* *** ********/*******.

***, *** ** ***** ******, * *******!

*** ****** **** ** **********. **** ** * **** **** job ** ******** ***** ******** ***** *****-****** *** ***** ***/*** technology.

** **** ***** ** ***** **** **********, *** **** **** reluctant ** ******* ********* ******* ** ******* *******. ***** ********** does *** **** **** ************ *** * ***** **** ****, this ***** ** ********** ** ***** ****.

**** ********** ****** ** *** ******** *******. *** **** ******** corporate ******* **************, ******** *** ****** ******* **** *******.

***** ****,

********* ******** **** ********* ** *** ******** ** ********* ** taking * ****** ** *** ****** *** ********** *** ** live *** *** ** ********. ***** ** ** ********** ** is **** ** **** ** *** ******* *** ****** ******** and ******** *** **** ** ****** **** **** ******* *******.

"*****-********* ** **** ********* ** ******** *********. * ***** ** the ***** ******** ******** ****-********* ***** *** **** *** ****** dedicated ** **** *** *** ********* ** *********."

********

"******* **** **** *** ****** ** * ****** ********** **** digitally ******* ** ******* *** ** ***** *******."

**** ** ***** ********!

**'* ********* ** *.*** *******.

*.*** **** **** ** ** *** *** ****** ** *********** switch ** **!

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