Ive nekuchenjerera nezvataurwa neCisco nezve yakavhurwa sosi h264.

Yakananga kubva pamashoko aRowan Trollope (Mutevedzeri Wemutungamiriri weCisco uye General Manager)

Kana zvasvika pakugadzira tekinoroji yekudyidzana senge yakavhurika uye inowanikwa zvakanyanya dudziro yepamusoro vhidhiyo, zviri pachena kuti webhu bhurawuza inoita basa rakakosha. Mubvunzo ndewokuti, iwe unogonesa sei live vhidhiyo natively pawebhu? Uyu mubvunzo vanhu vanoshuvira kuwana mhinduro.

WebRTC - seti yezvinowedzera kuHTML5 - ichagadzirisa iwo mubvunzo. Asi, pane chipingamupinyi chikuru chinofanirwa kukundwa, uye ndiko kumisikidzwa kweiyo yakajairwa vhidhiyo codec yekutaurirana-chaiyo nguva paWebhu - chimwe chinhu icho Internet Injiniya Task Force (IETF) ichatora svondo rinouya.

Iyo indasitiri yakakamurwa pasarudzo yeakajairika vhidhiyo codec kwenguva, nekuti iyo indasitiri standard - H.264 - inoda mari yemubhadharo kuna MPEG LA. Nhasi, ndinofara kuzivisa kuti Cisco iri kutora danho rakashinga kutora zvinetswa zvekubhadhara patafura.

Isu tinoronga kuvhura kodhi yeedu H.264 codec, uye nekuigovera semabhinari module inogona kutorwa mahara pamhepo. Cisco haizosiyire yedu MPEG LA rezinesi mutengo weiyi module, uye zvichibva pane yazvino marezinesi nharaunda, izvo zvinonyatsoita kuti H.264 ive yakasununguka kushandisa paWebRTC.

Ndiri kufarawo kuti Mozilla ichazivisa kuti inogonesa Firefox kushandisa iyi module, ichipa chaiyo-nguva H.264 browser rutsigiro.

"Izvo zvave zvisiri nyore, asi Mozilla yakabatsira kutungamira indasitiri iyi kutarisana nevhidhiyo pawebhu," akadaro Brendan Eich, Mozilla CTO. “Chiziviso cheCisco chinotibatsira kutsigira H.264 muFirefox pamafomu mazhinji ekushanda, uye muzasi uye kumwe kugoverwa kwenzvimbo pachena uchishandisa Cisco H264 binary module. "Tinofara kushanda neCisco kusimudzira mamiriro evhidhiyo yewebhu isingashande."

Uye sei ndichiti chenjera? Verengazve ndima yacho nemavara matema. Ipo ivo vachizoregedza kwavo kuita kwe h264 (pasi pezenisi BSD, vanoti), ndizvo iyo bhanari inogadzirwa necisco iyo ichashandiswa pachena mahara nevose, uye iyo iyo Mozilla ichashandisa kutsigira Firefox (ivo vachangobva kuzivisa kuti vaizoitsigira kuburikidza negstreamer, ikozvino ndiyo Cisco inovapa ruoko). Ichave Cisco iyo ichabhadhara MPEG LA iyo fizi iyo parizvino (uye kusvika 2015) iri $ 6,5 mamirioni pagore yekushandisa h264 (Mozilla haifungi nezve kuvabhadhara, ndosaka kwenguva yakareba vakaramba kupa rutsigiro). Asi, kana zvikaitika kwauri kuti uwane kodhi yekodhi, kurodha pasi, kuigadzirisa, kuigadzira uye nekuigovera (mahara kana kwete) rombo mumurwi kuunganidza mari yakawanda kubhadhara zvikwereti (kunze kwekunge nyika yako isingazive software patent, mune iyo Viva la Pepa).

Kana chero mumwe wenyu ari kufunga nezve x264, ndinokuudza kuti kunyangwe x264 iri yemahara, hazvina kunyanya kubvira iriwo pasi kusvika h264 patents. Mune mamwe mazwi, mutsauko uripo pakati peX264 neCisco kuitisa ndiyo rezinesi (GPL vs BSD). Saka rangarira, icho chinhu chimwe rusununguko rekodhi uye chimwe chinhu izvo hazvibvumirwe.

Kune zvimwe zvinhu zvekufunga futi. Kutanga, ichi chiero chekuenderera uchikwikwidzana neGoogle's VP8 (Google haina kuda kushambadza zvakare). Chechipiri, h265 uye VP9 codecs emhando yepamusoro mavhidhiyo ari kuuya munguva pfupi, uye Mozilla haisi kuzoregeredza mamwe akavhurika macodec, kusanganisira Daala (iyo codec iyo yavari kugadzira pamwechete neXiph, ivo vagadziri veOGG fomati uye maVorbis codecs, Theora uye Flac), iyo inovimbisa zvirinani mhando kupfuura h265 uye VP9 uye isina chero patent.

Kupedza ndinokusiya chiratidzo cheMonty Montgomery (kubva kuXiph) iyo inotaura zvese:

Kugadzirisa kwanhasi chigamba, uye hakuchinje zvakanyanya kumashure. Vangani vanhu vasina H.264 codecs pamachina avo, zviri pamutemo kana kwete? Vanofarira uye nyanzvi zvakafanana havateerere zvakanyanya marezinesi. Kunyangwe mabhizinesi mazhinji nhasi haazive kana hanya kana macodec avanoshandisa aine marezinesi akakwana (sekureva kwaMPEG LA, kune 1276 marezinesi munyika). Musika wese wecodec wave uchishanda pasi pe'Usabvunze, usaudze 'mutemo wemakore gumi nemashanu apfuura uye ndinopokana MPEG LA ine hanya. Izvo zvakabatsira kuita H.15 kuwanikwa kwese kwese, uye MPEG LA inogona kuenderera kumanikidza marezinesi mateki kana iri yekukwikwidza kwavo mukana (kana pachinzvimbo, yavo yekurwisa-kukwikwidza mukana, ivo vanozvidzivirira zviri pamutemo mushure mezvose.).

Ah, chimwezve chinhu. Pano ini ndinokupa iwe ruzivo nezve MPEG patent. Munguva pfupi yakwana, muna 2017 iwo ma patents eMMP anopera, muna 3 iwo eMPEG-2018 (h2) uye chete muna 262 iwo e2028.