Gabatarwa ga Canje-canje na Musamman daga HDMI 1.0 zuwa HDMI 2.1 (Sashe na 1)

Gabatarwa ga Canje-canje na Musamman daga HDMI 1.0 zuwa HDMI 2.1 (Sashe na 1)

Tun bayan fitowar na'urar Blu-ray ta farko a duniya, Samsung BD-P1000, a shekarar 2006, wadda ta rungumi fasahar HDMI, yawancin na'urorin Blu-ray da na'urorin sake kunnawa na full HD sun kasance suna da fasahar HDMI. Tun daga lokacin, HDMI ta kasance ba ta da ƙarfi kuma ta mamaye masana'antar kebul tsawon shekaru da yawa, tana mamaye sassan watsa sauti da bidiyo na masu amfani da masana'antu.

Juyin Halittar Sigogin HDMI

1.4 da 2.0 sune mafi yawan

2.0a yana goyan bayan 4K HDR
HDMI 1.0
Yana goyan bayan Blu-ray da Full HD 1080/60Hz
An saki HDMI 1.0 a ranar 9 ga Disamba, 2002. Haɗin sauti/bidiyo ne na dijital mai layi ɗaya. Tsarin haɗin ya dogara ne akan DVI kuma yana amfani da tsarin watsa bidiyo iri ɗaya, amma yana watsa sauti da sauran bayanai masu taimako a lokacin tazara na watsa bidiyo. HDMI 1.0 yana ba da damar matsakaicin agogon TMDS na 165 MHz (bandwidth na kowane haɗin shine 4.95 Gbit/s), iri ɗaya da DVI. Yana bayyana nau'ikan haɗin guda biyu da ake kira A-type da B-type, waɗanda bi da bi suna amfani da pinouts bisa ga haɗin DVI-D guda ɗaya da haɗin DVI-D guda biyu, kodayake ba a taɓa amfani da haɗin B-type a cikin wani samfurin kasuwanci ba. HDMI 1.0 yana amfani da lambar 8 b/10 b don watsa bidiyo, yana ba shi bandwidth na bidiyo na 3.96 Gbit/s (1920 × 1080 ko 1920 × 1080 60Hz) da LPCM/192 kHz/24-bit na tashoshi 8. HDMI 1.0 yana buƙatar tallafi ga bidiyon RGB, kuma yana goyan bayan Y′CBCR 4:4:4 da 4:2:2 (an tilasta shi idan na'urar tana goyan bayan wasu hanyoyin haɗin Y′CBCR). Zurfin launi na bpc 10 (bits/pixel 30) ko bpc 12 (bits/pixel 36) yana ba da damar amfani da samfurin 4:2:2, amma zurfin launi 8 bpc (bits/pixel 24) ne kawai ake yarda da shi lokacin amfani da RGB ko Y′CBCR 4:4:4. Ana tallafawa sararin launi na Rec. 601 da Rec. 709 kawai. HDMI 1.0 yana ba da damar takamaiman tsarin bidiyo da aka riga aka ayyana, gami da duk tsare-tsaren da aka ayyana a cikin EIA/CEA-861-B da wasu tsare-tsaren da aka jera a cikin ƙayyadaddun HDMI. Duk tushen/masu karɓa na HDMI dole ne su iya aika/karɓi bidiyon DVI na asali kuma su bi cikakken ƙayyadaddun DVI.
Sigar HDMI ta farko, wacce aka fitar a watan Disamba na 2002, za a iya cewa an tsara ta musamman don cikakken software na HD kamar Blu-ray a wancan lokacin. Babban fasalinta shine haɗakar watsa bidiyo da sauti a lokaci guda. Idan aka kwatanta da tsararren hanyoyin watsa bidiyo akan kwamfutoci kamar DVI da DisplayPort, ya fi dacewa da kayan aikin sauti da gani. HDMI 1.0 ya riga ya goyi bayan bidiyon DVD da Blu-ray, tare da matsakaicin bandwidth na 4.95 Gbps, wanda daga cikinsu ana amfani da 3.96 Gbps don watsa rafukan bidiyo, wanda ke iya tallafawa ƙudurin 1080/60p ko UXGA; dangane da sauti, yana goyan bayan LPCM mai tashoshi 8 24bit/192kHz, ma'ana ya riga ya kai ga sauti mai tashoshi da yawa na Hi-Res. A kwatanta ƙayyadaddun kebul a wancan lokacin, ya yi ƙarfi sosai.

HDMI 1.1

An saki HDMI 1.1 a ranar 20 ga Mayu, 2004, kuma an ƙara tallafi ga DVD-Audio.
An ƙaddamar da shi a watan Mayu na 2004 kuma ya haɗa da sabon tallafi ga DVD-Audio. DVD-Audio yana adana kiɗan PCM 16-bit/44.1kHz zuwa 24-bit/192kHz akan faifan DVD. Da farko an yi niyya ne ya zama magajin CD iri ɗaya da SACD, amma abin takaici, duka tsarin biyu sun kasa samun shahara sosai.
HDMI 1.2
Tallafi ga SACD
An fitar da shi a watan Agusta na 2005, wanda ya ƙara tallafi ga sauti mai bit 1, wanda aka fi sani da SACD audio streaming, har zuwa tashoshi 8. DMI CEC tana ba da damar sarrafawa ɗaya daga nesa don sarrafa duk na'urori masu jituwa, wanda hakan ya dace sosai.
An saki HDMI 1.2 a ranar 8 ga Agusta, 2005, kuma ya ƙara ɗan zaɓin sauti don Super Audio CD, har zuwa tashoshi 8. Don sanya HDMI ya fi dacewa da amfani a kan na'urorin PC, sigar 1.2 ta kuma cire buƙatar amfani da tsare-tsare da aka tallafa kawai. Ya ƙara ƙarfin masana'antun ƙirƙirar tsare-tsare na musamman ga mai samar da kayayyaki, yana ba da damar kowane ƙuduri da saurin wartsakewa, ba wai kawai ga jerin tsare-tsaren da aka riga aka ayyana ba. Bugu da ƙari, ya ƙara tallafi na musamman ga wasu sabbin tsare-tsare gami da 720p a 100 da 120Hz da buƙatun tallafin tsarin pixel masu sassauƙa, don haka ba za a buƙaci tushen da ke da fitarwar RGB na gida kawai (PC) don tallafawa fitarwar Y′CBCR ba.