H.265 / HEVC Codec Tutorial

*.*** ******* ******** ************* in ****, **** *.*** camera/VMS ************* ********* ******** to **** * **** ago, *** **** ************* shipping *.*** ******.

*******, ***** *** ***** challenges ********* *.***'* *************** and *************, ******* ** from ********* *.*** ** the **********.

** **** ******, ** review *** ***** ******, including:

• *.*** ** *.*** ********* Comparisons
• ******* ** *******
• ******** ** ****** ** H.265
• ******/*** ************* ************
• *** ******* ********
• ***** *********** ******
• *.*** ** ***** *.***
• *.*** ***** ******
• *.*** **** **** *******
• *.*** *** **** ******
• ****** ********* ******
• ***** ***************

*******, *** *** ********* claims *** ****/*.*** ** reducing *** **** ************ in **** ** ******* the **** *******. *** instance, ** * ***** / ***** *.*** ****** required ***/*, *** ********** H.265 ****** ***** ** expected ** ******* **** 2Mb/s. *** **** ** now, ******* *** ******, as ** **** ******* inside.

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

*** **********, *** ************* **** ****/*.*** **********. *** *** **** details, *** ********** **** ***** ******** document(***+ *****).

Technical **********

***** **** ********** ************ drive *.***'* ********* *********** gains:

• **** ****** **** ******* of ***********: ***** *.***'* maximum ***** **** ** 256 ****** (** ***), H.265's **** ** *** greater ** **** (** x **). ********** *** the ****** **** ******* more ********* ********, ********** for ****** ********** ******. Read * **** ********* blog **** ***** *******. *** ***** ***** shows ****:

• ******** ******** ** *.*** will ***** ********* ***** of *** ***** ** be ********* **************. **** can ***** ** ******** and **** ********* ** the ************ ****** *****-**** CPUs *********. *.*** *** not ******* ****.
• "***** ****** ******" ****** has **** ***** ** H.265 **** "******* ******** without ******* ** ****** any ******** **** ******** earlier ** *** *********, supporting ** ********* ******** coding ***** ***** ** 'open ***' *********" (******* * ** **** document). **** ***** ** a ********* ******* *** surveillance ** *** **** to ******** ******** ***** has ****** ******** * frames **** *** ******** increase *** ****.

*** ***** ******* **** H.265 *****, **** **** H.264, ** ******** ********. While ** ****** ** planned (**** ** *.***), H.265 ** ******** ** bring ******** ***** ** surveillance. *** ******** ******* streaming ** *** ********* clients *** ****** ******* pruning.

Potential ************ ** *******

* ****** ** ************* tout ************ ** ***** quality **** *.***, ****** this ** **********. *.*** is *** ********** ****** 'quality' **** *.*** *** was *.*** ****** '*******' than ****-*. ** ****, if *** *** ***** appropriate ********* *** *.*** for ******* *****, ****** to *.*** ** ******** to ******* ***** *******. However, ** *** ****** bit ****. *** **** case ***** ** ***** indirectly ************** ** ** ********* levels **** *.*** **** set ** *** ** to ******** ******* *********. Then, * ****** ** H.265 ** *** **** bandwidth ***** ***** ******* quality.

Barriers ** ****** ** *.***

****** ** *.*** *** not **** ****** ** easy *** ************ *** to ***** *** ********:

• *** *******: ******** ******* ****** simply ** ******** ** H.265 *** ********, ** new ******** *** ********* required, ******* **** ******* must ** ******** **** as *** ******** **** moving **** ****-* ** H.264.
• *** *** ********: ***** *.*** ** a ***(**) ********, *** vendors **** ** *** support. ***** ** ******** a **** ****** ** work *** *******. ** such ****** *** ****** until ***** *** ******* camera ********** (*** *** support *****).
• ********* ********** *****: *** ******** ** bandwidth ********* ** ****** processing ***** ************ **** projections ** ******** **** 50% ** ***% ********. On *** ***** ****, decreased ********* ************ ***** actually **** ************ ***** as ** ******* */* transfer ****. **********, **** should ** ** *** there **** ** ************** concerns *** ****** ** test *** ******** *** issues.

Camera ******* **********

********** ****, *.*** ******* in ** ******* *** NVRs ********** *************, **** Asian ****** **** ** including*****,******,*********,*******, ****************** *.*** ** **** models, ***** ****** **** as ****, *****, **************** ******* *.*** ******, with **** *** ******** including *** *****. *******, latecomers **** ** *******, Avigilon, *** ***** **** all ********* ***/** ******** H.265 ******.

VMS/Camera ************* ********

*.*** ***/****** ************* *** improved *************, **** **** camera ************* (****, *****, Hanwha, *********, *********, *******, etc.) ****** ** ****** VMSes **** *.*** ******* (Exacq, *******, *********, *********) with ** ************* ******** aside **** ********* *.*** instead ** *.*** ** streaming *****.

**** * **** ******* (~mid ****), **** *** not *** ****, **** most ***** ********** **** limited ****** ** ********* additional *** ** ***** or ****** ************* ** the ****** ***** *** web ********* ** *** H.265 *******.

***** ************ ** *********** and **** ** *** are ****** ** ******** to ***** *.*** ******** further.

VMS ******* **********

** *** *** ****, many ********** *** ******* support *** ** ***** some *.*** *******, **** direct ****** ******* *** most ** *** ****** models ********* *****. ** of ***** ****:

• ******** ******* ******: ******** ******* ****, with ****** ** ****** in ****.
• ***** ****: *****, ******, *********, Panasonic, *******, ******* **** (and **** ***** ****)
• ***********: ****, *****, ******, Hikvision, ********, **********, *******, and ******* ****
• ******* ******** ******: ****, *****, *****, FLIR, ******, *********, ***, Vivotek
• ********* ********: *******, ****, *****, Dahua, *-****, ******, *********, Illustra, **********, *********, *********, TVT, *******, ******* (*** OEMs)
• ******* ***** *********: *****, *********, ******, Hikvision, *****, *********, *********, TVT, *******, ******* (*** OEMS)
• ***** *******: *****, ******, *********/***, Panasonic/Advidia, *******

H.265 ***** *********** *** ********, ******* * ********

*** ** *** ***** Profile * ** **********, a *** ******* *** required ** ******* *.***, named ******* *, ******** in ** ****. ***** to **** *******, ***** could *** ********* ***** compatibility **** ***** *.***, even ** **** *** camera *** *** **** Profile * **********. *** our ********* *** **** ***** Will ******* *.****** **** *******.

******* ******/*** ********* **** included ******* *** *.*** via ***** (*** ******* conformance **********). *** *******, Milestone ******** ***** ******* for *.*** ***** ******* in ***** ********* ****** list, ** ** ***** and ******* *****.

*******, **** *** ******* of ******* *, *.*** is *** ********* ** a *****-**-*** ***** ****** in ********** *******, ******* that ******* **** ******* it *** *** ** the *** ** *********, and ***** **** ** able ** ******** ****** and ******* **** ******. With **** ****** ** place, ******* * *.*** cameras************* *********** ** ******* S *.** *******. *** our***** ******* * *********** **** *******.

Smart *.*** ** *.***

*.*** ** *** *** only ********* ******** ********** being ******* *** ***** surveillance *******. ******, ** the **** *** *****,***** ********** **** **********, ********** significant ********* ********** ******** to ******** *.***, *** reducing *** ********** ** move ** *.***.

*.*** ***** ****** **** 2 *** ******** **. H.265:

• ********* **********/***** **** *.***, eliminating *** **** *** new *** ******* *** CPU **** *********
• ******* * ***** ******** with ***** *.*** *** significantly ****** ********* ***********, a ******* **** "*******" H.265 *****.

** ********** ** **** ***** codec *********, *** ********* ******* there **** *** ******* than **** *** ********** marketing ****** ** '***-*****' H.265.

H.265 ********* **** ***** ******

**** ***** ****, "*******" H.265 ******* *** ************ rare, **** ************* ******* implementing *.*** ***** **** smart ******, **** *********** *.***+,****** *.*** **** **********,******* *.***/***** ****** **, ***. **** *********** offers ****** ************, *** as ******* ** ********** with *.*** ***** ****** on ** ***. *******, for ******** ****** ********, this ** ****** ** be *** *********** **** moving *******, ********** ** H.265's ******* ********** *****.

H.265 **** *******

** ***** *****, *.*** cameras *** *** ******* material ********* ************/******* **** typical *.*** ******* (****.*** ** ******* ** H.264 **** *******), **** *.*** ***** codecs ********* ****** ******* than "*******" *.***.

*******, ** **** ****** tests, **** ********'* ******* * *******(*********** ******'* ****** ********** of *.*** *******), ***** H.265 ******** **** ******* lower **** ***** *.***, both ** *** **** camera *** ****** ***********.

*.*** *** ******* ** it ******* *** ********** generations ** ***** ****** available, ******* ** *.*** improvements **** ****.

CPU **** ******

** *** *****, ******* H.265 *** ******* **** processor *********, ******** ********* double *** *** **** of *.*** *******. ******* of ****, ***** ****** be*********** ** ******** ****** CPUs ** ****** ********, since ***** *** **** equipment ** ******* ******* using *.*** *** ** insufficient.

*** *******, **** ************ *.***+ **** ******, *.*** ******* **** more **** ****** *** CPU **** ** *.***, both *** *** *****.

*********** **** *****, ***** hardware/GPU ******** *** ****** more ****** ** *** past ******* *****, **** GPUs ** *** ******* H.265 ******** ********. ******* of ****, ***** **** may ** ******* **** offloading ** *** *** when ***** *.***, ***** settings **** ** ****** on *.*** ****, ***** below:

H.265 ****** ********* ******

*.*** *** ********** * new ************ *** *************: patent *********. ****** *.***, which *** **** * single ****** ****** (******), H.265 ** ******* ** 1,000+ ******* **** ** multiple ****** (******, **** Advance, *****, *** ****). Because ** ****, ***** is ********* ***** ************* about ***** ***** ** patents **** ****** ******* for ***** ********.

** * ******, * number ** ****** *************/*** developers **** *** ******** their ******** ** *** (below). ***** ****** *** covered ** **** ****** in **************** ******** ********** *.*** Products ******.

Usage ***************

***** ** *** *** above *******, ** *********:

• ******** *.*** **** ***** codecs, ***** *.*** ******* smart ******, ***** ******* smart ******, *.*** ******** more ********* **** ***** H.264. ****, *.*** *** general ****** ** ***** VMS ******* *** ****** decoder *** **** *** present ** *.***.
• ****** **** ***** *.*** cameras *** ******** **** work **** **** *** / *** ** ******. Though ********, **** ************ will ***** *** **** today *** ***** ****** a ***** *******.
• ****** **** *** **** sufficient ********** ***** **** on *** ********* ****** (if *.*., *** ******** is ***** ****** ***** motion ********* ** ***** display) *** ** *** client **** ** ****** that *** ****** *** sufficient ********* ** ****** and ******* *.*** ******* losing ****** ** ***** quality.

****: **** ******** *** originally ******* ** **** but ******* ** ****, 2017, **** ** ******* advances/changes ** *.*** ******* and ***********.