Audio Video Standard (AVS): Nws Yog Dab Tsi & Thaum Koj Siv Nws?

by kim Kho tshiab: Lub Xya hli ntuj 5, 2022

AVS, lossis Audio Video Standard, yog ib qho kev siv tshuab audio thiab video tsim los ntawm Audio Video Coding Standard Working Group (AVS-WG) ntawm Tuam Tshoj.

Nws muab kev koom ua ke architecture thiab kev siv lub platform rau kev txhim kho suab thiab video coding algorithms.

Tus txheej txheem yog tsim los muab kev txhim khu kev qha thiab muaj txiaj ntsig zoo suab thiab video coding thev naus laus zis tsim nyog rau ob qho tib si mobile thiab daim ntawv thov ruaj khov.

Qhov kev taw qhia no yuav qhia txog cov yam ntxwv ntawm AVS tus qauv thiab sib tham thaum nws yog qhov zoo tshaj plaws los siv AVS rau audio thiab video coding.

Definition of AVS

Audio Video Standard (AVS) yog ib qho ITU (International Telecommunication Union) txheem suab thiab video compression algorithm tsim los ntawm Tuam Tshoj Multimedia Mobile Broadcasting (CMMB). AVS lub hom phiaj yog los muab kev paub ntau yam kev paub ntau yam hauv kev ua tau zoo los ntawm kev siv cov thev naus laus zis uas twb muaj lawm.

AVS siv cov qauv ntoo nrog rau kev twv ua ntej them nyiaj thiab hloov cov txheej txheem coding kom zoo encode suab / video ntws ntawm tus nqi qis piv rau lwm cov qauv siab. Nws txhawb ntau qhov kev daws teeb meem mus txog UHD 4K / 8K daws teeb meem, nrog kev coding ntau dua li H.265 / HEVC, H.264 / MPEG-4 AVC thiab lwm cov codecs siab heev. Nrog superior zoo thiab kev ua tau zoo, AVS tau dhau los ua ib qho ntawm cov cuab yeej siv video compression tshaj plaws rau kev siv ntau yam.

Cov yam ntxwv tseem ceeb ntawm AVS suav nrog:
• Tsawg tus nqi tso zis nrog cov duab zoo;
• High scalability muab tau yooj yim rau cov khoom siv sib txawv;
• Kev txhawb nqa qis qis uas ua rau muaj kev txiav txim siab sai;
• Ua tau zoo playback kev ua tau zoo ntawm ntau yam khoom siv sib txawv ntawm kev khiav haujlwm;
• Txhawb rau 10-ntsis xim qhov tob;
• Ntau tshaj 8192 video macroblocks ib thav duab.

History of AVS

AVS yog tus qauv video thiab audio compression tsim los ntawm Audio Video Coding Standard Workgroup ntawm Tuam Tshoj, lossis AVS-WG. Nws tau tsim los ua cov lus teb thoob ntiaj teb rau kev lag luam xav tau hauv cov duab / suab coding, tsim lub platform rau kev sib tw algorithm ntawm cov koom haum thoob ntiaj teb sab saum toj.

Thawj ob versions ntawm AVS tau tso tawm nyob rau hauv 2006 thiab 2007 raws li, thaum lub thib peb iteration (AVS3) yog unveiled nyob rau hauv Lub kaum hli ntuj 2017. Qhov tshiab version no yuav siv sij hawm kom zoo dua ntawm kev nce qib hauv video compression technology, nrog rau kev txhim kho me ntsis qhov tob sawv cev, txo qhov ntau thiab tsawg block thiab nce algorithmic complexity los ntawm kev txhim kho kev suav algorithms.

Txij li thaum nws tso tawm nyob rau hauv 2017, AVS3 tau pom dav siv vim nws synchronous encoding / decoding peev xwm. Tsis tas li ntawd, nws tau raug coj los ua ib feem ntawm ntau daim ntawv thov Virtual Reality / Augmented Reality ua tsaug rau kev ua kom zoo sib xws cov qauv encoding uas zoo tagnrho rau kev nyob streaming ntawm tsawg bitrates nrog tsawg latency.

Zuag qhia tag nrho, AVS lub peev xwm tau tsim kom muaj kev paub ntau yam kev paub ntau yam uas tuaj yeem tsim kho kom txhawb nqa ntau yam kev siv sib txawv. Nws yog li no tau nce ntxiv rau kev siv thoob plaws ntau yam kev lag luam xws li kev muaj tiag virtual, augmented kev muaj tiag, tshaj tawm cov ntsiab lus xa, video ntawm kev thov kev pabcuam, tshaj-tus-saum streaming servers thiab huab gaming kev daws teeb meem ntawm lwm tus.

Cov txiaj ntsig ntawm AVS

Audio Video Standard (AVS) yog tus qauv audio thiab video encoding uas tso cai rau kev ua tau zoo dua, muaj txiaj ntsig zoo dua thiab xa cov ntaub ntawv audio thiab video hla ntau lub network. AVS yog siv nyob rau hauv tshaj tawm, streaming, gaming, thiab ntau lwm yam kev siv multimedia. Tshooj lus no yuav suav tag nrho cov txiaj ntsig ntawm kev siv AVS tus qauv.

Txhim kho zoo

Ib qho txiaj ntsig loj ntawm kev siv AVS tus qauv yog txhim kho cov ntaub ntawv compression zoo. Txhawm rau ua tiav qhov zoo no, tus qauv siv lub bitrate siab dua thiab ntau dua algorithms tshaj li cov codecs. Qhov no txhais tau hais tias kev tshaj tawm encoded nrog AVS yuav zoo dua li cov ntsiab lus zoo sib xws nrog lwm cov codecs.

Qhov siab dua bitrate thiab advanced algorithms kuj pab txo cov video buffering thiab stuttering. Qhov no yog vim qhov muaj zog ntau dua ntawm AVS codec thaum nws los txog rau pob ntawv poob thiab yuam kev ntawm qis-bandwidth networks. Tsis tas li ntawd, qhov kev ua tau zoo no tuaj yeem ua rau muaj kev siv ntau dua, tso cai rau kev ua haujlwm zoo dua thaum streaming lossis archiving media files ntawm cov khoom siv uas muaj peev xwm cia tsawg.

Ntxiv rau qhov no, AVS kuj tseem muaj kev txhawb nqa rau HDR (High Dynamic Range) encoding uas txhais tau tias cov yeeb yaj kiab uas siv AVS tuaj yeem siv HDR thev naus laus zis los muab qhov tob dua, qhov sib piv thiab xim raug hauv cov yeeb yaj kiab tso tawm ntawm HDR-muaj peev xwm ntaus ntawv xws li smartphone lossis ntsiav tshuaj. lub computer. Qhov no txhais tau tias pom kev zoo nkauj zoo nkauj tsis hais seb koj tab tom saib HD cov ntsiab lus hauv tsev lossis streaming koj cov yeeb yaj kiab uas koj nyiam thaum mus.

Nqi txuag

Ib qho ntawm qhov zoo ntawm kev siv Audio Video Standard (AVS) yog lub peev xwm los txuag cov nqi, vim nws muab txoj hauv kev zoo los tsim thiab faib cov xov xwm digital. AVS daws qhov tsis sib haum xeeb ntawm kev yees duab thiab lub suab compression tshuab, uas txwv tsis pub cov phiaj xwm video cuam tshuam los ntawm kev txiav txim siab los ntawm cov khoom siv suab lossis lwm yam. Yog li ntawd, siv AVS tshem tawm qhov xav tau ntawm cov neeg muab kev pabcuam los tsim cov ntaub ntawv ib leeg rau txhua hom phiaj ntaus ntawv.

Nrog AVS, ib hom ntawv compressed tuaj yeem tsim thiab siv thoob plaws ntau lub hom phiaj ib puag ncig nrog me me lossis tsis muaj kev hloov kho. Qhov no txo ​​cov nqi sau ntawv vim tias tsis tas yuav muaj ntau lub versions ntawm tib daim ntawv hla ntau lub platform. Cov ntaub ntawv ib leeg no tuaj yeem rov ua dua hauv ntau hom xov xwm suav nrog streaming media, sib tham sib DVD ntau lawm, thiab lwm yam, txo cov nqi cuam tshuam nrog kev hloov pauv ntxiv.

Ntxiv mus, thaum cov ntsiab lus faib los ntawm streaming thev naus laus zis tau hloov pauv thiab thaum kawg rub tawm ntawm cov neeg siv khoom siv xws li xov tooj ntawm tes lossis PCs, AVS txhim kho cov txheej txheem coding ib txwm los ntawm kev muab cov duab zoo dua ntawm tus nqi qis dua thaum ua tiav qhov zoo dua compression piv thaum piv nrog MPEG- 2 technology. Cov nqi qis dua pab hauv kev xa khoom ceev thiab muaj txiaj ntsig zoo thaum faib cov ntsiab lus ntawm qee lub network xws li satellite raws cov kev pabcuam uas muaj cov kev txwv bandwidth nruj vim muaj peev xwm pheej yig.

compatibility

Ib qho ntawm cov txiaj ntsig tseem ceeb ntawm AVS yog lub peev xwm los lav kev sib raug zoo ntawm cov khoom siv sib txawv, tso cai rau cov yeeb yaj kiab zoo thiab cov ntaub ntawv audio tsim los ua si ntawm txhua yam khoom siv. Cov qib siab ntawm kev sib raug zoo no ua rau AVS qhov kev xaiv zoo tshaj plaws rau kev tsim suab thiab video, nrog rau kev siv hauv tsev.

AVS kuj ua kom muaj kev sib txuam tsis sib haum xeeb thoob plaws ntau yam khoom siv nrog ceev bitrate encoding uas tso cai rau cov cuab yeej sib txawv lossis qhov ntau thiab tsawg los siv cov ntaub ntawv daws teeb meem yam tsis muaj kev poob zoo. Cov duab zoo thiab lub suab tsim los ntawm cov qauv zoo li no kuj tiv taus malware lossis kab mob uas feem ntau nrog cov ntsiab lus los ntawm lwm qhov chaw. AVS suav nrog cov encryptions muaj zog uas ua kom cov ntsiab lus tsim yuav nyob ruaj ntseg, tiv thaiv kev ua txhaum cai lossis lwm yam kev tawm tsam uas yuav cuam tshuam rau cov neeg siv cov ntaub ntawv.

Siv Cases rau AVS

Audio Video Standard (AVS) yog ib tug digital media transmission protocol tsim los ntawm Suav koom tes. Nws feem ntau yog siv los xa cov suab thiab cov vis dis aus hauv lub network thiab siv dav hauv cov TV digital thiab lwm yam. lub kaw suab khoom siv. Hauv seem no, peb yuav saib ntau yam kev siv rau lub suab video txheem, nrog rau nws qhov zoo thiab qhov tsis zoo.

Broadcasting

AVS video coding system muaj ntau daim ntawv thov hauv kev tshaj tawm, tshwj xeeb tshaj yog rau kev sib kis ntawm digital satellite TV, cable TV thiab kev tshaj tawm hauv av. Nws feem ntau yog siv los ua tus txheej txheem video coding rau kev tshaj tawm ncaj qha satellite (DBS). Nws kuj tseem nrov rau digital video tshaj tawm (DVB) thiab cable TV systems, nrog rau cov kev pabcuam siab txhais cov neeg siv khoom siv (HDDSL) cov kev pabcuam. AVS tus qauv yog siv los ua kom cov suab thiab cov ntsiab lus video ua ntej kis tau tus mob, tso cai rau nws yooj yim xa mus rau cov kev txwv bandwidth tes hauj lwm xws li satellite kev sib txuas lus los yog cable TV.

Lub kaw lus AVS tso cai rau cov neeg tshaj tawm xov xwm xa xov xwm ntau ntxiv hauv tib qhov chaw thaum piv rau lwm cov qauv xws li MPEG-2 lossis Multimedia Home Platform (MPEG-4). Nws kuj tseem muaj cov txiaj ntsig ntxiv xws li txo qis encoding nyuaj, txhim kho compression efficiency thiab scalability nrog cov peev xwm sib txawv me ntsis. Qhov no ua rau nws yog qhov kev xaiv zoo tshaj plaws rau kev siv xov tooj cua thiab TV uas xav tau cov ntaub ntawv xa tawm tau zoo thaum tseem xa cov kev pom zoo ntawm cov neeg siv khoom kawg.

streaming

Cov ntawv thov streaming tuaj yeem tau txais txiaj ntsig los ntawm AVS kom ntseeg tau tias kev xa khoom zoo ib yam ntawm cov ntsiab lus audio thiab video, nrog rau qhov kev paub zoo tshaj plaws. AVS tso cai rau cov neeg muab kev pabcuam tshaj tawm TV thiab xov tooj cua nyob hauv lub sijhawm tiag tiag hauv internet hauv kev hloov pauv ntawm cov kwj deg, txhawb ntau hom streaming ib zaug.

AVS yog siv rau streaming suab thiab video tawm tswv yim xws li MP3, FLAC, AAC, OGG, H.264/AAC AVC, MPEG-1/2/4/HEVC thiab lwm yam kev txhawb nqa tsim nyog los muab ib tug ntau yam ntawm ntau yam lus thiab ntau yam. -format online media services thoob plaws ntau qhov screen.

AVS tuaj yeem ua haujlwm los tsim kom muaj kev tshaj tawm streaming nrog tus kheej kev hloov kho video zoo tshaj li ntau yam khoom siv. Nws txhawb nqa ob qho tib si kev sib txuas lus hauv network siv HTTP Live Streaming (HLS) lossis Dynamic Adaptive Streaming (DASH) raws tu qauv thiab kev tshaj tawm xov xwm siv MPEG Transport Stream raws tu qauv (MPEG TS). Kev txhawb nqa rau DRM thev naus laus zis xws li PlayReady, Widevine lossis Marlin kuj suav nrog.

Tsis tas li ntawd, AVS muab cov yam ntxwv xws li kev txhawb nqa rau seamless hloov ntawm kev hloov kho bitrates thiab kev daws teeb meem; ceev pib lub sij hawm; txhim kho kev ua yuam kev rov qab muaj peev xwm; kev sib txuas tus nqi optimization; kev sib raug zoo nrog ntau cov qauv kev lag luam hloov pauv hloov pauv xws li HEVC lossis VP9 cov ntaub ntawv encoded; txhawb kev tshaj tawm hauv xov tooj cua IPTV; compatibility nrog SDI ntes daim npav; kev txhawb nqa rau multicasting nrog rau IPv6 muaj peev xwm; timed metadata ua raws li ID3 cov qauv kev koom ua ke cov ntaub ntawv ntawm cov khoom suab.

Yees duab kev sib tham

Video conferencing yog ib qho kev siv thawj zaug rau AVS. Suab thiab yees duab tuaj yeem kis tau ntawm qhov chaw nyob deb nrog ze-HD zoo. AVS muaj peev xwm ua tau qhov no vim nws qhov ua yuam kev kho cov lej, uas pab kom ntseeg tau tias tsuas yog lub suab zoo tshaj plaws thiab cov yeeb yaj kiab mus txog lub receiver. Qhov no yog vim li cas AVS tau dhau los ua tus qauv rau kev sib tham video hauv ntau qhov kev lag luam niaj hnub no.

AVS kuj tau txais txiaj ntsig zoo thaum nws los txog rau kev ua kom muaj zog, vim nws tso cai rau ntau tshaj ob tus neeg tuaj koom hauv kev hu ib zaug yam tsis muaj kev cuam tshuam rau lub suab lossis video zoo. Qhov chaw ntawm AVS ua rau syncing hu ntawm ntau lub cuab yeej ua tau thiab ua kom txhua tus neeg koom tau txais kev paub zoo li HD yam tsis muaj kev lag luam lossis cuam tshuam zoo li qub.

AVS kuj tseem txhawb cov txheej txheem encryption built-in uas encrypts txhua ntu siv cov txheej txheem kev nyab xeeb hauv internet (SSL). Qhov no txhais tau hais tias tag nrho cov ntaub ntawv sib koom ntawm cov neeg tuaj koom tseem tsis pub lwm tus paub thiab tsis tuaj yeem nkag mus tau los ntawm lwm tus tshaj li cov uas tau raug caw tuaj koom hu. Cov txheej txheem ntxiv ntawm kev ruaj ntseg no ua rau AVS qhov kev xaiv zoo tshaj plaws rau cov pab pawg uas xav tau xa cov ntaub ntawv rhiab thaum lawv cov kev sib tham.

AVS Standards

Audio Video Standard (AVS) yog tus qauv siv suab-visual coding siv hauv digital audio thiab video kis. Nws yog tsim thiab tsim los ntawm Lub Suab Video Coding Standard Working Group ntawm Tuam Tshoj thiab tau tso tawm thawj zaug hauv 2006. AVS cov qauv pab muab kev sib raug zoo ntawm cov qauv hauv video encoding thiab decoding, nrog rau kev txhim kho video zoo, kev ruaj ntseg, thiab kev siv bandwidth. Tshooj lus no yuav tham txog AVS cov qauv hauv kev nthuav dav thiab cov xwm txheej uas nws siv.

AVS-P

AVS-P (Audio Video Standard Preservation) yog ib qho ntawm cov qauv tshiab ntawm AVS tus qauv uas tau tsim los pab rau kev khaws cia ntev ntev ntawm cov duab txav, suav nrog TV thiab zaj duab xis. Cov txheej txheem no yog npaj los muab cov neeg tshaj tawm xov xwm thiab lwm lub koom haum nrog ib qho yooj yim nkag mus tau yooj yim, ruaj ntseg hom rau thauj cov ntsiab lus audio / video.

AVS-P kev qhia tshwj xeeb yog raws li International Standardization Organization's (ISO) MPEG-2 tus qauv. Nws muab cov yam ntxwv zoo dua qub xws li cov duab zoo dua vim tias muaj cov bitrates ntxiv, kev koom ua ke nrog cov qauv tshaj tawm uas twb muaj lawm uas ua rau siv hauv ob qho tib si thiab cov khoom xa tawm digital, txhim kho compression algorithms uas txo qis bitrates yam tsis pom kev poob hauv video lossis suab zoo, thiab nws kuj tuaj yeem nkag mus. rau ntau qhov kev pab cuam versions. Tag nrho cov nta no ua rau AVS-P yog qhov kev xaiv zoo thaum nws los muab cov kev daws teeb meem zoo rau lub sijhawm ntev rau cov ntsiab lus suab / pom.

AVS-P thev naus laus zis tau lees paub qhov zoo tshaj plaws video kis tau tus mob nyob ntev thiab tuaj yeem siv rau hauv ntau qhov xwm txheej tshaj tawm uas qhov teeb meem cuam tshuam yog qhov teeb meem lossis qhov twg cov neeg siv xav tau qhov nruab nrab ruaj ntseg rau vaj tse lawv cov ntsiab lus. AVS-P system siv ob lub codecs — video codec H.264/MPEG 4 Part 10 Advanced Video Coding (AVC), feem ntau hu ua HVC, uas txhawb nqa HD thiab 4K daws teeb meem; thiab suab codec Dolby AC3 Plus (EAC3) uas txhawb nqa txog 8 raws. Kev sib xyaw ua ke ntawm ob lub codecs muab AVS-P cov txiaj ntsig zoo tshaj qhov qub qub analog systems thaum nws los txog rau kev khaws cia siab rau lub suab / cov ntsiab lus pom lub sijhawm.

AVS-M

AVS-M (Audio Video Standard—Multimedia) yog tus qauv tsim los ntawm AVS Ua Haujlwm Pab Pawg ntawm Tuam Tshoj National Video thiab Audio Coding Standard Coordination Group. Cov qauv no muab lub platform dav rau kev tsim kho thiab xa khoom, suav nrog cov duab, 3D duab, animation thiab suab.

AVS-M tsom mus rau cov ntawv thov xws li kev tshaj tawm hauv xov tooj cua digital thiab kev sib txuas lus los pab tsim cov ntsiab lus zoo uas ua tau raws li cov neeg siv khoom xav tau thaum txo cov nqi. Nws suav nrog cov kev cai sib kis, cov ntaub ntawv coding cov cai, cov qauv tsim qauv tsim qauv thiab lwm yam.

Cov yam ntxwv tseem ceeb ntawm AVS-M tus qauv suav nrog:
- Scalable multimedia video coding uas txhawb video me ntsis nqi ntawm 2kbps–20Mbps
- Siv dav nrog lwm cov qauv xws li H264/AVC thiab MPEG4 Part 10/2 kom ua tau zoo dua (kev sib koom tes)
- Kev them nyiaj yug encoding rau plaub hom xov xwm cais: suab, ntawv nyeem, duab thiab animation
- Txhawb nqa 3D duab
- Ntawm qhov screen zaub (OSD) nta kom cov neeg siv kho qhov chaw ncaj qha los ntawm lawv cov cuab yeej tso saib cov ntxaij vab tshaus
- JPEG2000 encoding feature uas txhawb nqa cov duab daws teeb meem siab dua
Nws yog dav siv hauv cov ntawv tshaj tawm digital hauv Suav teb thaum tseem siv hauv qee lub khw thoob ntiaj teb xws li Nyiv thiab Europe. Tsis tas li ntawd, nws tau txais kev pom zoo los ntawm qee qhov kev sib tham hauv Suav teb suav nrog CCTV.

AVS-C

AVS-C yog Audio Video Standard, los yog AVS, tsim los ntawm Lub Suab thiab Video Coding Standard Working Group (AVS WG) ntawm Tuam Tshoj Video Industry Association (CVIA). AVS-C yog raws li H.264/MPEG-4 AVC, thiab yog tsim los ua kom Suav cov yeeb yaj kiab tshaj tawm nrog kev pom zoo tshaj plaws thaum ua tau raws li cov qauv thoob ntiaj teb.

AVS-C muab cov neeg tsim yeeb yaj kiab ntau qhov zoo dua li MPEG video coding qauv xws li MPEG-2 thiab MPEG-4. Nws tso cai rau ntau qhov kev pabcuam video xa mus rau hauv ib qho channel bandwidth, tso cai rau kev siv ntau dua ntawm kev tshaj tawm xov xwm. Thiab vim hais tias nws siv high compression algorithms los txo qhov kev xav tau ntawm tus nqi me ntsis dhau HDTV thev naus laus zis zoo li blu-duab tshav, nws kuj tseem pab txo cov nqi ntawm cov tuam txhab.

AVS-C txhawb nqa ntau yam nta uas tsis muaj nyob rau hauv lwm cov qauv nrog rau siab zaus bandwidths mus txog 10MHz ua rau nws haum rau HD daim ntaub ntawv; qis latency hom; ncej tus nqi mus txog 120 ntas ib ob; qib xim hom ntawv; audio coding hom xws li AAC, MP3 thiab PCM; sib txawv bitrate kev txhawb nqa kom smoother xa ntawm kwj txawm hais tias network tej yam kev mob; txhim kho kev ua tau zoo los ntawm kev ua kom zoo dua ntawm cov txheej txheem ntawm cov lus tsa suab thiab cov duab duab; qis latency video coding txuj ci; kho qhov yuam kev siab heev; daim duab zoo xeem siv cov thav ntawv siv thiab cov qauv neeg hlau tiag tiag.

Cov xwm txheej siv rau AVS-C muaj ntau qhov sib txawv raws li nws tuaj yeem siv tau hauv ntau qhov chaw suav nrog kev tshaj tawm digital, internet streaming media cov ntsiab lus faib platforms, TVOnline cov kev pabcuam mobile platforms, kev kawm ntawv thov kev pabcuam (POD), kev pabcuam IPTV sib tham, Cable TV systems thiab lwm tus.

xaus

AVS tus qauv yog ib qho tseem ceeb rau cov kws tshaj lij audio thiab video kom nco ntsoov thaum xaiv txoj hauv kev zoo tshaj plaws los ntes thiab tshaj tawm lawv cov ntsiab lus. Raws li nws cov koob meej nce ntxiv, kev paub thaum twg thiab yuav ua li cas siv tus qauv no yog qhov tseem ceeb rau txhua tus neeg siv khoom, kev lag luam, lossis cov neeg muab kev pabcuam nrhiav kom tau txais txiaj ntsig tshaj plaws ntawm lawv cov kev tshaj tawm. Hauv tsab xov xwm no, peb tau tshawb xyuas qhov zoo thiab qhov tsis zoo ntawm AVS, nrog rau nws cov ntaub ntawv siv. Cov lus xaus yog qhov tseeb-AVS yog tus qauv tseem ceeb thiab muaj zog uas tuaj yeem siv los ua kom muaj txiaj ntsig zoo.

Summary of AVS

AVS stands rau Suab Video Standard thiab yog ib tug video codec tsim nyob rau hauv Tuam Tshoj los ntawm lub suab Video Coding Standard Workgroup. Cov qauv no tau tsim los ntawm ntau qhov kev koom tes los ntawm ntau lub tsev kawm ntawv hauv Suav teb, cov chaw tshawb fawb, thiab cov tuam txhab suav video chip. Nws tau tsim tawm thaum Lub Yim Hli 2005, thiab txij li ntawd los nws tau raug tsim los kom haum rau lub siab txhais digital TV tshaj tawm hauv Suav teb.

AVS integrates advanced technologies xws li Multi-Picture Frame Resource Partitioning (MFRP), Advanced Intra Coding (AIC), Advanced Inter Prediction (AIP), Adaptive Loop Filter (ALF), Deblocking Filter (DF) thiab 10 ntsis 4:2:2 colorspace rau kev muab lub peev xwm coding muaj peev xwm ua tau raws li qhov xav tau ntawm HDTV cov ntsiab lus xa tawm. Nws kuj tseem muaj kev txhim kho tus nqi tswj kev muaj peev xwm xws li kev cuam tshuam kev ua kom zoo, cov ntsiab lus hloov kho me ntsis faib, cov ntsiab lus raws li macroblock hla kev txiav txim siab mechanism, thiab lwm yam.

Ntxiv nrog rau kev siv HBBTV cov kev pabcuam hauv Suav teb, AVS tseem tuaj yeem muab cov duab zoo dua li lwm cov qauv thoob ntiaj teb thaum piv nrog cov ntawv thov bitrate ruaj khov uas tau siv dav hauv kev tshaj tawm thoob ntiaj teb niaj hnub no. Nws muab kev ua tau zoo dua thaum cuam tshuam nrog cov kev ua haujlwm nyuaj thiab ua rau muaj txiaj ntsig zoo dua compression efficiency thaum ua ke nrog tag nrho cov suite ntawm cov cuab yeej coding zoo nrog rau cov qauv kev twv ua ntej tshiab thiab hloov cov tswv yim.

Yog li ntawd, AVS yog ib qho zoo tshaj plaws rau encode multimedia cov ntsiab lus ntawm HD daws teeb meem xws li 720p lossis 1080i / 1080p thaum tseem khaws cov kev txwv bandwidth txwv los ntawm kev ua tiav cov txiaj ntsig zoo compression yam tsis muaj kev cuam tshuam qhov pom kev zoo lossis lwm cov qauv suab xws li Dolby Digital Plus lossis AAC / HE-AACv1 / v2 audio encode formats.

Qhov zoo ntawm AVS

Siv AVS muaj ntau qhov zoo uas ua rau nws txaus siab rau ntau yam kev siv. Ua ntej thiab foremost, AVS nta lossless compression, txhais tau hais tias qhov zoo ntawm tus thawj video / suab yog khaws cia nyob rau hauv tag nrho cov txheej txheem ntau lawm. Qhov no ua rau nws zoo tagnrho rau kev tsim cov yeeb yaj kiab / suab zoo sib xws nrog qhov koj xav pom hauv cov yeeb yaj kiab lossis tshaj tawm hauv TV. Tsis tas li ntawd, AVS kuj tseem muab cov sij hawm encoding thiab decoding zoo, nrog rau cov latency qis streaming uas ua kom muaj kev sib txuas lus ceev ntawm ob lub cuab yeej. Tsis tas li ntawd, vim nws qhov tsis muaj tswv yim, AVS tuaj yeem siv nrog cov khoom lag luam los ntawm txhua tus neeg tsim khoom - yog li kev sib raug zoo yuav tsis muaj teeb meem. Thaum kawg, txij li AVS yog raws li H.264 tus qauv (tib yam siv rau Blu-Ray discs), txhua tus neeg siv tuaj yeem paub tseeb tias nws qhov kev tsim khoom yuav nyob twj ywm ntawm qhov txiav rau xyoo tom ntej.

Nyob zoo, Kuv yog Kim, niam thiab ib tus neeg nyiam nres nrog keeb kwm yav dhau los hauv kev tshaj tawm thiab kev txhim kho lub vev xaib. Kuv muaj kev mob siab rau kev kos duab thiab kev ua yeeb yam, thiab tam sim no kuv tab tom dhia taub hau ua ntej mus rau hauv lub ntiaj teb nres. Nrog rau kuv qhov blog, Kuv tabtom qhia kuv cov kev kawm nrog koj.