Microchip PolarFire® FPGA H.264 IKhowudi yeSikhokelo se-IP somsebenzisi
Intshayelelo
I-H.264 ngumgangatho wocinezelo wevidiyo odumileyo wokucinezela ividiyo yedijithali. Ikwaziwa njengeMPEG-4 Part10 okanye Advanced Video Coding (MPEG-4 AVC). I-H.264 isebenzisa indlela yobulumko yokucinezela ividiyo apho ubukhulu bebhloko buchazwa njenge-16×16 kwaye ibhloko enjalo ibizwa ngokuba yibhloko enkulu. Umgangatho woxinzelelo uxhasa iipro ezahlukeneyofiles ezichaza umlinganiselo woxinzelelo kunye nobunzima bokuphunyezwa. Izakhelo zevidiyo eziza kucinezelwa ziphathwa njengesakhelo se-I, isakhelo se-P kunye nesakhelo esingu-B. Isakhelo se-I sisikhokelo se-intra-coded apho ucinezelo lwenziwa ngokusebenzisa ulwazi oluqulethwe kwisakhelo. Akukho ezinye izakhelo ezifunekayo ukucacisa isakhelo se-I. Isakhelo se-AP sixinzelelwe ngokusebenzisa utshintsho malunga nesakhelo sangaphambili esinokuba yi-I isakhelo okanye isakhelo se-P. Ukunyanzeliswa kwesakhelo se-B kwenziwa ngokusebenzisa utshintsho lwentshukumo ngokubhekiselele kuzo zombini isakhelo sangaphambili kunye nesakhelo esizayo.
Inkqubo yokucinezela isakhelo se-I inee-s ezinetages—Intelekelelo ye-Intra, inguqu edibeneyo, iQuantization kunye ne-Encoding ye-Encoding. I-H.264 ixhasa iindidi ezimbini ze-encoding-Context Adaptive Variable Length Coding (CAVLC) kunye neContext Adaptive Binary Arithmetic Coding (CABAC). Inguqulelo yangoku ye-IP isebenzisa iBaseline profile kwaye isebenzisa i-CAVLC ye-entropy encoding. Kwakhona, i-IP ixhasa ukukhowudwa kwezakhelo ze-I kuphela.
Ezona mpawu
- Isebenzisa ucinezelo kwifomati yevidiyo ye-YCbCr 420
- Ilindele igalelo kwifomathi yevidiyo ye-YCbCr 422
- Ixhasa i-8-bit yecandelo ngalinye (Y, Cb, kunye ne-Cr)
- I-ITU-T H.264 Isihlomelo B siyahambelana ne-NAL byte imveliso yomlambo
- Ukusebenza okuzimeleyo, i-CPU, okanye uncedo lweprosesa alufuneki
- Umgangatho oqwalaselweyo womsebenzisi we-QP ngexesha lokuqhuba
- Ukubalwa ngesantya sepixel enye ngewotshi nganye
- Ixhasa ucinezelo ukuya kwisisombululo se-1080p 60 fps.
Iintsapho ezixhaswayo
- PolarFire® SoC FPGA
- PolarFire® FPGA
Ukuphunyezwa kweHardware
Lo mzobo ulandelayo ubonisa i-H.264 I-frame ye-Encoder IP block diagram.
Umfanekiso 1-1. H.264 I-Frame Encoder IP Block Diagram
Igalelo kunye neZiphumo
Le theyibhile ilandelayo idwelisa igalelo kunye nemveliso yezibuko zeH.264 Frame Encoder IP.
Uluhlu 1-1. IiPorts zeNgeniso kunye neZiphumo ze-H.264 I-Frame Encoder IP
| Igama loMqondiso | Isalathiso | Ububanzi | Izibuko Iyasebenza Ngaphantsi | Inkcazo |
| RESET_N | Igalelo | 1 | — | Isiginali yokusetha ngokutsha esebenzayo-phantsi Asynchronous kuyilo. |
| SYS_CLK | Igalelo | 1 | — | Ikloko yokufaka apho ii-pixels ezingenayo zizi-sampi-LED. |
| DATA_Y_I | Igalelo | 8 | — | I-8-bit Luma igalelo le-pixel kwifomathi ye-422. |
| DATA_C_I | Igalelo | 8 | — | Igalelo lepixel ye-8-bit yeChroma kwifomathi ye-422. |
| DATA_VALID_I | Igalelo | 1 | — | Ngena kwidatha yePixel isignali esebenzayo. |
| FRAME_END_I | Igalelo | 1 | — | Isiphelo sesalathiso seSakhelo. |
| FRAME_START_I | Igalelo | 1 | — | Ukuqala kwesalathiso seSakhelo. Umphetho onyukayo walo mqondiso uthathwa njengesiqalo sesakhelo. |
| HRES_I | Igalelo | 16 | — | Isisombululo esithe tye somfanekiso wegalelo. Kufuneka iphindaphindwe ka-16. |
| VRES_I | Igalelo | 16 | — | Isisombululo esithe nkqo somfanekiso wegalelo. Kufuneka iphindaphindwe ka-16. |
| QP_I | Igalelo | 6 | — | Umgangatho womgangatho we-H.264 quantization. Ixabiso livela kwi-0 ukuya kwi-51 apho i-0 imele umgangatho ophezulu kunye noxinzelelo oluphantsi kwaye i-51 imele ukunyanzeliswa okuphezulu. |
| DATA_O | Isiphumo | 8 | — | Imveliso yedatha ekhowudiweyo ye-H.264 equlethe iyunithi ye-NAL, i-header yesilayi, i-SPS, i-PPS, kunye nedatha ekhowudiweyo yeebhloko ezinkulu. |
| DATA_VALID_O | Isiphumo | 1 | — | Umqondiso obonisa idatha ekhowudiweyo iyasebenza. |
Uqwalaselo Parameters
I-H.264 I Frame Encoder IP ayisebenzisi iiparamitha zoqwalaselo.
Ukuphunyezwa kweHardware ye-H.264 I Frame Encoder IP
Lo mzobo ulandelayo ubonisa umzobo webhloko we-H.264 I Frame Encoder IP.
Umfanekiso 1-2. H.264 I-Frame Encoder IP Block Diagram
Inkcazelo yoYilo ye-H.264 I Frame Encoder IP
Eli candelo lichaza iimodyuli ezahlukeneyo zangaphakathi ze-H.264 I-frame generator IP. Ukufakwa kwedatha kwi-IP kufuneka ibe kumfanekiso we-raster scan kwifomethi ye-YCbCr 422. I-IP isebenzisa ifomathi ye-422 njengegalelo kwaye iphumeza ukunyanzeliswa kwifomathi ye-420.
I-16 × 16 iMatrix Framer
Le modyuli yenza isakhelo se-16×16 iibhloko ezinkulu zecandelo le-Y ngokweenkcukacha ze-H.264. Izithinteli zomgca zisetyenziselwa ukugcina imigca ye-16 ethe tye yomfanekiso wegalelo kunye ne-16 × 16 matrix iqulunqwe kusetyenziswa iirejista zokutshintsha.
I-8 × 8 iMatrix Framer
Le modyuli yenza isakhelo se-8 × 8 iibhloko ezinkulu zecandelo le-C ngokweenkcukacha ze-H.264 zefomathi ye-420. Izithinteli zomgca zisetyenziselwa ukugcina imigca ye-8 ethe tye yomfanekiso wegalelo kwaye i-8x16 matrix yenziwe ngefreyimu kusetyenziswa iirejista zokutshintsha. Ukususela kwi-matrix ye-8 × 16, i-Cb kunye ne-Cr amacandelo ahlulwe ukwenza isakhelo ngasinye se-8x8 matrix.
I-4 × 4 iMatrix Framer
I-integer transformation, quantization, kunye ne-CAVLC encoding isebenza kwi-4 × 4 sub-block ngaphakathi kwebhloko enkulu. I-4 × 4 ifreyimu ye-matrix ivelisa i-4 × 4 ibhloko encinci ukusuka kwi-16 × 16 okanye i-8 × 8 ibhloko enkulu. Le matrix generator inqumla kuzo zonke iibhloko ezisezantsi zebhloko enkulu phambi kokuya kwibhloko elandelayo enkulu.
Intra Prediction
I-H.264 isebenzisa iindlela ezahlukeneyo ze-intra-prediction ukunciphisa ulwazi kwibhloko ye-4 × 4. Ibhloko ye-intra-prediction kwi-IP isebenzisa kuphela ukubikezelwa kwe-DC kwi-4 × 4 ubukhulu be-matrix. Icandelo le-DC libalwe ukusuka kumphezulu okufutshane kwaye lishiye iibhloko ze-4 × 4.
Inguqu epheleleyo
I-H.264 isebenzisa i-integer discrete cosine uguqulelo apho i-coefficients isasazwa kuyo yonke i-matrix yenguqu epheleleyo kunye ne-quantization matrix ukuze kungabikho uphinda-phindo okanye ulwahlulo kwinguqu epheleleyo. Inani elipheleleyo lokuguqulatage iphumeza inguqu isebenzisa shift kunye nokongeza imisebenzi.
Ubungakanani
Ubalo luphinda-phinda isiphumo ngasinye senguqu epheleleyo ngexabiso elimiselweyo lobungakanani obuchazwe lixabiso legalelo lomsebenzisi we-QP. Uluhlu lwexabiso le-QP luvela kwi-0 ukuya kwi-51. Naliphi na ixabiso elingaphezu kwe-51 yi-clamped ukuya ku-51. Ixabiso eliphantsi le-QP lichaza ucinezelo oluphantsi kunye nomgangatho ophezulu kunye nokuphambene.
I-CAVLC
I-H.264 isebenzisa iindidi ezimbini ze-entropy encoding-Context Adaptive Variable Length Coding (CAVLC) kunye neContext Adaptive Binary Arithmetic Coding (CABAC). I-IP isebenzisa i-CAVLC ekufakeni ikhowudi kwimveliso elinganisiweyo.
Ijeneretha yeHeader
Ibhloko ye-header generator ivelisa iiheader zebhloko, iiheader ze-slice, i-Sequence Parameter Set (SPS), i-Picture Parameter Set (PPS), kunye ne-Network Abstraction Layer (NAL) iyunithi ngokuxhomekeke kumzekelo wesakhelo sevidiyo.
H.264 Ijenereyitha yoMjelo
Ibhloko ye-H.264 yejeneretha yomlambo idibanisa imveliso ye-CAVLC kunye neentloko ukwenza i-encoded output njengoko ngokwefomathi eqhelekileyo ye-H.264.
Testbench
I-Testbench inikezelwa ukujonga ukusebenza kwe-H.264 I-frame Encoder IP.
Ukulinganisa
Ukulinganisa kusebenzisa umfanekiso we-224×224 kwifomathi ye-YCbCr422 emelwe zimbini. files, nganye ye-Y kunye ne-C njengegalelo kwaye yenza i-H.264 file ifomathi equlathe izakhelo ezibini. La manyathelo alandelayo achaza indlela yokulinganisa i-core usebenzisa i-testbench.
- Yiya kwikhathalogu yeLibero SoC> View > Windows > Ikhathalogu, kwaye wandise Izisombululo-Ividiyo. Cofa kabini H264_Iframe_Encoder, uze ucofe u-Kulungile.
Umfanekiso 2-1. H.264 I Frame Encoder IP Core kwikhathalogu yeLibero SoC - Yiya kwi Files isithuba kwaye ukhethe ukulinganisa > Ngenisa ngaphandle Files.
Umfanekiso 2-2. Ngenisa ngaphandle Files - Thatha ngaphandle i-H264_sim_data_in_y.txt, H264_sim_data_in_c.txt, kunye ne-H264_refOut.txt files ukusuka kule ndlela ilandelayo: ..\\ component\Microsemi\SolutionCore\ H264_Iframe_Encoder\ 1.0.0\Stimulus.
- Ukungenisa eyahlukileyo file, khangela incwadi eneenkcukacha equlathe ezifunekayo file, kwaye ucofe Vula. Ezingenisiweyo file zidweliswe phantsi kokulinganisa, jonga lo mzobo ulandelayo.
Umfanekiso 2-3. Ithathwe ngaphandle Files - Yiya kwi-Stimulus Uluhlu lwemigangatho isithuba kwaye ukhethe H264_isakhelo_Encoder_tb (H264_isakhelo_Encoder_tb. v) >
Lingisa uYilo lwaPhambi kweSynth> Vula ngokuSebenzayo. I-IP ifaniswe kwizakhelo ezimbini.
Umfanekiso 2-4. Ukulinganisa uYilo lwe-Pre-Synthesis
I-ModelSim ivula nge-testbench file njengoko kubonisiwe kulo mfanekiso ulandelayo.
Umfanekiso 2-5. Ifestile yeModelSim yokulinganisa
Phawula: Ukuba ukulinganisa kuphazamisekile ngenxa yomda wexesha lokuqhuba elichazwe kwi-DO file, sebenzisa i run -all command ukugqiba ukulinganisa.
Ilayisensi
H.264 Ifreyim ye-Encoder IP ibonelelwe ngohlobo oluntsonkothileyo kuphela phantsi kwelayisensi.
Imiyalelo yokuFakela
Undoqo kufuneka ufakwe kwisoftware yeLibero SoC. Yenziwa ngokuzenzekelayo ngomsebenzi wohlaziyo lweCatalog kwisoftware yeLibero SoC, okanye iCPZ file ingongezwa ngesandla kusetyenziswa iFayile yekhathalogu yokongeza iCore. Xa iCPZ file ifakwe kwi-Libero, ingundoqo inokulungiswa, yenziwe, kwaye ifakwe ngaphakathi kwe-SmartDesign ukuze ifakwe kwiprojekthi ye-Libero.
Ukufumana imiyalelo engaphezulu malunga nofakelo olungundoqo, ilayisensi, kunye nokusetyenziswa ngokubanzi, bona Uncedo lweLibero SoC kwi-Intanethi.
Usetyenziso lweziBonelelo
Le theyibhile ilandelayo idwelisa ukusetyenziswa kobutyebi njengeample H.264 Ifreyim i-Encoder IP design eyenzelwe i-PolarFire FPGA (iphakheji ye-MPF300TS-1FCG1152I) kwaye ivelisa idatha ecinezelweyo ngokusebenzisa i-4:2:2 sampUkufakwa kwedatha.
Itheyibhile 5-1. Ukusetyenziswa koVimba we-H.264 I Frame Encoder IP
| Isiqalelo | Ukusetyenziswa |
| 4LUTs | 15160 |
| Ii-DFFs | 15757 |
| I-LSRAM | 67 |
| µSRAM | 23 |
| Iibhloko zeMathematika | 18 |
| Ujongano lwe-4-input LUTs | 3336 |
| Ujongano lweDFFs | 3336 |
Imbali yohlaziyo
Itheyibhile yembali yohlaziyo ichaza utshintsho oluthe lwaphunyezwa kuxwebhu. Ezi nguqulelo zidweliswe ngohlaziyo, kuqalwa kolona papasho lwangoku.
| Uhlaziyo | Umhla | Inkcazo |
| A | 01/2022 | Ukupapashwa kokuqala koxwebhu. |
Microchip FPGA Inkxaso
Iqela leemveliso zeMicrochip FPGA libuyisela iimveliso zalo ngeenkonzo ezahlukeneyo zenkxaso, kubandakanya iNkonzo yabaThengi, iZiko leNkxaso yobuGcisa yabaThengi, a webindawo, kunye neeofisi zokuthengisa zehlabathi. Abathengi bayacetyiswa ukuba bandwendwele iMicrochip imithombo ye-intanethi ngaphambi kokuqhagamshelana nenkxaso njengoko kunokwenzeka ukuba imibuzo yabo sele iphendulwe.
Qhagamshelana neZiko leNkxaso yobuGcisa nge webindawo kwi www.microchip.com/support. Khankanya inombolo yeCandelo leSixhobo seFPGA, khetha udidi lwetyala elifanelekileyo, kwaye uyilo lokulayisha files ngelixa usenza imeko yenkxaso yobugcisa.
Qhagamshelana neNkonzo yabaThengi ngenkxaso yemveliso engeyiyo eyobugcisa, njengamaxabiso emveliso, ukuphuculwa kwemveliso, ulwazi lokuhlaziya, isimo somyalelo kunye nokugunyaziswa.
- Ukusuka kuMntla Melika, biza 800.262.1060
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I Microchip Webindawo
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- Inkxaso yeMveliso- Amaxwebhu edatha kunye neerrata, amanqaku esicelo kunye ne-sampiinkqubo, izixhobo zoyilo, izikhokelo zabasebenzisi kunye namaxwebhu enkxaso yehardware, ukukhutshwa kwesoftware yamva nje kunye nesoftware egciniweyo
- Inkxaso yoBugcisa ngokuBanzi - Imibuzo ebuzwa rhoqo (FAQs), izicelo zenkxaso yobugcisa, amaqela eengxoxo kwi-intanethi, uluhlu lwamalungu enkqubo yoyilo lweMicrochip
- Ishishini leMicrochip – Umkhethi wemveliso kunye nezikhokelo zokuodola, ukukhutshwa kwe-Microchip yamva nje, uluhlu lweesemina kunye neziganeko, uluhlu lweeofisi zentengiso ye-Microchip, abasasazi kunye nabameli befektri.
Inkonzo yesaziso soTshintsho kwimveliso
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Ukubhalisa, yiya ku www.microchip.com/pcn kwaye ulandele imiyalelo yobhaliso.
Uxhaso lwabathengi
Abasebenzisi beemveliso zeMicrochip banokufumana uncedo ngeendlela ezininzi:
- Umsasazi okanye uMmeli
- I-Ofisi yoThengiso yasekuhlaleni
- Embedded Solutions Engineer (ESE)
- Uxhaso lobuchwepheshe
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Inkxaso yobugcisa ifumaneka nge webindawo e: www.microchip.com/support
Microchip Devices Code Protection Feature
Qaphela ezi nkcukacha zilandelayo zenqaku lokhuseleko lwekhowudi kwiimveliso zeMicrochip:
- Iimveliso zeMicrochip ziyahlangabezana nemigaqo equlethwe kwiMicrochip Data Sheet yazo.
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Isaziso soMthetho
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OLU LWAZI LUBONWA NGE-MICROCHIP “NJENGOKO ZINJALO”. I-MICROCHIP AYENZA Mmeli OKANYE IZIQINISEKISO ZALO NALUPHI UHLOBO, OKANYE INGCACILEYO OKANYE IYATHENWA, IYABHALWA OKANYE NGOMLOMO, NGOMTHETHO OKANYE NGOLUNYE, ENXULUMENE NOLWAZI KUBANDAKANYA KODWA AYIMDALWA KUSO NAsiphi na ISIQINISEKISO SOKUBANISWA, UKUFANELEKILEYO NGENJONGO ETHILE, OKANYE IZIQINISEKISO EZINXULUMENE NEMEKO, UMGANGATHO, OKANYE UKUSEBENZA KWAYO.
AKUKHO SIGANEKO IYA KUTHWATHWA NALUPHI NA I-MICROCHIP ESIYA KUTHWALA NGALO NALUPHI NA ULWAZI, OLUKHETHEKILEYO, LWESOHLWAYO, NGESIGANEKO, OKANYE OKUPHUMELELE Ilahleko, UMONAKALO, IINDLEKO, OKANYE INKCITHO YALO NOLUPHI NA UHLOBO ELUYANXULUMENE NOLWAZI OKANYE UKUSETYENZISWA KWALO, NANGONA INGCACISO, NANGENZWENI. OKUSEKO OKANYE UMONAKALO UYABONAKALA. NGOKUPHELELEYO UXANDUVA LUVUMELEKILEYO NGOMTHETHO, UXANDUVA LWONKE LE-MICROCHIP KULONKE AMABANGO NGAYO NAYIPHI NA IINDLELA EZINXULUMENE NOLWAZI OKANYE UKUSETYENZISWA KWALO AKUYI KUGQIBELA ISIXA SOMRHUMO, UKUBA NAKHO, OWUHLAWULE NGQO UKUBA ULWAZI LWAZI.
Ukusetyenziswa kwezixhobo zeMicrochip kwinkxaso yobomi kunye / okanye izicelo zokhuseleko ngokupheleleyo kumngcipheko womthengi, kwaye umthengi uyavuma ukukhusela, ukuhlawulela kwaye ubambe iMicrochip engenabungozi kuyo nayiphi na kunye nawo wonke umonakalo, amabango, iisuti, okanye iindleko ezibangelwa kukusetyenziswa okunjalo. Akukho zilayisenisi zigqithiswayo, ngokungafihlisiyo okanye ngenye indlela, phantsi kwawo nawaphi na amalungelo epropathi yemveliso yeMicrochip ngaphandle kokuba kuchazwe ngenye indlela.
Iimpawu zokuthengisa
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ViewI-Span, i-WiperLock, i-XpressConnect, kunye ne-ZENA ziimpawu zorhwebo ze-Microchip Technology Incorporated e-USA nakwamanye amazwe. I-SQTP luphawu lwenkonzo ye-Microchip Technology Incorporated e-USA
Ilogo ye-Adaptec, Frequency on Demand, Silicon Storage Technology, Symmcom, kunye nexesha eliThenjiweyo ziimpawu zorhwebo ezibhalisiweyo zeMicrochip Technology Inc. kwamanye amazwe.
I-GestIC luphawu lwentengiso olubhalisiweyo lwe-Microchip Technology Germany II GmbH & Co. KG, i-subsidiary ye-Microchip
Technology Inc., kwamanye amazwe. Zonke ezinye iimpawu zorhwebo ezikhankanywe apha ziyipropathi yeenkampani zabo.
© 2022, Microchip Technology Incorporated kunye nenkxaso yayo. Onke Amalungelo Agciniwe.
ISBN: 978-1-5224-9663-2
Inkqubo yoLawulo loMgangatho
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