H.264 VS H.265
Jan 24, 2019
H.264 VS H.265
Nrog txoj kev loj hlob sai ntawm IP video kev txhim kho tshuab, qhov tam sim no H.264 (MPEG-4 / AVC) tsis tau txais kev pabcuam ntxiv cov kev xav tau video encoding rau cov duab siab dua. Tshwj xeeb, 4K UHD thiab cov khoom siv yees duab 8K UHD yuav tsis muaj qhov hloov yav tom ntej. Raws li cov qauv kev yees duab ntxiv tom ntej no, H.265 los ua lag luam, H.265 los yog High Efficiency Video Coding (HEVC) tau maj mam txais nyob rau hauv high definition IP surveillance khoom xws li HD IP cameras, NVR.
Ua tus thawj coj video ua yeeb yaj kiab, Hisilicon thiab Ambarella tsim kev ua haujlwm siab SoCs uas yog feature 4K UHD video encoding nrog H.265 / HEVC tus qauv txhawb. Qhov sib txawv ntawm H.264 thiab H.265 yog cov ntsiab lus kub ntev heev, ntau cov neeg siv qhia ntau yam txaus siab rau H.265 IP koob yees duab thiab NVRs, vim hais tias cov tshiab video coding txheem theem cog lus ntawm cov nyiaj loj bandwidth ntawm kwv yees li 40-50% H .264 encoded cov ntsiab lus nrog zoo zoo. Nyob rau hauv ib lub nutshell, H.265 muaj peev xwm muab kev yees duab zoo tshaj rau bandwidth constrained network txuas. Qhov no txhais tau tias thaum siv cov koob yees duab H.265 IP, neeg siv yuav muaj kev yees duab zoo nrog kev ua si, tsis pub tsawg dua hauv video latency.
Dab tsi yog lub ntsiab lus rau IP koob yees duab? Nyob rau hauv tib lub duab zoo, siv H.265 IP koob yees duab tuaj yeem txuag tau 50% bandwidth thiab video cia. Cia peb sib piv cov kev pab ntawm kev cia siab tias tus 100pcs 1080P IP koob yees duab project thaum xaiv H.264 thiab H.265 txawv cov qauv.
| H.264 1080P | H.265 1080P | |
|---|---|---|
| Bitrate | 4 Mbps | 2 Mbps |
| 1CH yuav tsum muaj chaw cia rau ib lub hlis | 483600243010241024 = 1.24TB | 283600243010241024 = 0.62TB |
| 100CH hauv ib lub hlis | 124TB | 62TB |
| Tag nrho cov nyiaj siv HDD | Kwv yees. Teb Chaws Asmeskas $ 4340 | Kwv yees. Teb Chaws Asmeskas $ 2170 |
Ntxiv rau cov txiaj ntsig ntawm kev siv network bandwidth thiab video cia, ntau cov neeg siv tau xav paub txog cov duab zoo sib txawv ntawm H.264 thiab H.265. Ntawm no peb tau kuaj ob lub IP PTZ dome cov koob yees duab ntawm lub khw muag khoom reputable.If tus IP video keb soj ntsuam project muaj xws li 100pcs puv HD 1080p IP koob yees duab, siv H.265 encoding txuag 62 terabyte cia chaw, 4TB ib HDD, txuag approx. 15.5 HDDs, yog tias tus nqi ntawm 4TB HDD yog US $ 140, koj tuaj yeem txuag tau US $ 2170 pob nyiaj siv rau txoj haujlwm no, yog li ntawd qhov txiaj ntsig yog qhov tseeb.
Ntxiv rau cov txiaj ntsig ntawm kev siv network bandwidth thiab video cia, ntau cov neeg siv tau xav paub txog cov duab zoo sib txawv ntawm H.264 thiab H.265. Ntawm no peb tau kuaj ob lub IP PTZ dome koob yees duab ntawm lub khw tsim nyog.

Nyob rau hauv tib lub video saib xyuas scene, cov duab yuav los ntawm H.265 IP PTZ lub koob yees duab yog ntau ntxaws thiab meej, nrog zoo dua clarity.
2MP H.265 IP PTZ koob yees duab, 20x Optical Zoom

2MP H.264 IP PTZ koob yees duab, 20x Optical Zoom

Ntxiv nrog rau kev txhim kho duab zoo hnub, hmo soj ntsuam ntawm H.265 IP lub koob yees duab zoo dua.

H.265 Hmo Hmo Zoo

H.264 Hmo Zoo




