Bayan watanni tara na ci gaba an fitar da sabon sigar kayan aikin na multimedia FFmpeg 4.2, sigar da ta riga ta kasance. FFmpeg 4.2 ya hada da gyaran kura-kurai da sabbin abubuwa wadanda suka inganta aikinta.
Ga wadanda ba su san FFmpeg ba ya kamata su san cewa wannan aikin software kyauta Zai iya ba masu amfani damar ƙididdigewa, ɓoyewa, lambar wucewa, mux, demux, rafi, tacewa, yawo da sauti da bidiyo, tsakanin sauran abubuwa da yawa.
Hakanan ya cancanci ambata cewa kunshin ya ƙunshi libavcodec , libavutil, libavformat, libavfilter, libavdevice, libswscale da libswresample da za a iya amfani da su ta aikace-aikace. Hakanan ffmpeg, ffserver, ffplay da ffprobe, wanda ana iya amfani dashi ta ƙarshen masu amfani don sauyawa, gudana da sake kunnawa.
An haɓaka FFmpeg akan GNU / Linux, amma ana iya tattara shi akan yawancin tsarin aiki, gami da Windows. FFmpeg wanda ke samar da ɗakunan karatu da shirye-shirye waɗanda ake amfani dasu don sarrafa bayanan multimedia.
Babban sabon fasali na FFmpeg 4.2
Tare da isowar wannan sabon fasalin FFmpeg an kara tallafi daban-daban na wane zamu iya haskaka tallafin da aka aiwatar don ƙaddamar da tsarin AV1 ta amfani da madadin dav1d decoder wanda aka haɓaka ta ayyukan VideoLAN da FFmpeg. Dav1d yana mai da hankali kan cimma nasarar ƙaddamar da aikin dikodi da kuma tabbatar da ingantaccen aiki mai ɗimbin yawa.
Hakanan tallafi don dalla dalla dalla-dalla HEVC 4: 4: 4 abun ciki ta amfani da NVIDIA nvdec da injunan hanzarta kayan aiki na cuviddec, da kuma amfani da VDPAU (Decoding Video and Presentation) API.
An Saka Kwandunan Kwantena Na Media (demuxer) dhav, hcom da bayyane, KUX da IFV da PCM-DVD, VP4, hymt, hcom, ARBC, agm da lscr encoders.
A cikin akwatunan kwantena na mov media, ana bayar da rikodin waƙa ba tare da ma'anar yaren bayyane ba (a baya, harshen da aka saba amfani da shi Ingilishi ne).
Wani sabon abu a cikin wannan sabon fasalin FFmpeg 4.2 shine ƙari sababbin filtata, waɗanda sune:
- asr: sanarwa ta atomatik tare da injin PocketSphinx
- wahalar: cire ruwan sama daga bidiyo ta amfani da tsarin ilmantarwa na inji na RESCAN na hanyar sadarwar yanar gizo da samfuran waje
- ganowa: tabbatar da rashin canje-canje a cikin bidiyon (ba tare da canza wani lokaci ba)
- t-pad: additionalara ƙarin faifets a farkon ko ƙarshen rafin bidiyo
- sadaukarwa: santsi haske da kayan tarihi (dot flash da bakan gizo) a bidiyo
- chromashift / rgbashift: sauyawa daga abubuwan launuka pixel a kwance da kuma a tsaye
- zayyansakha dawo da asalin rafin TrueHD, yana watsar da metadata na ATMOS;
- anlmdn: danniya da amo mai yaduwa a cikin rafin sauti ta amfani da algorithm wanda ba na gida ba
- maskfunfun: ƙirƙiri abin rufe fuska bisa faifan bidiyo
- AV1 : rabuwa tsakanin firam a cikin jerin AV1
- jin dadi: yana jinkirta canjin launi na pixels mai duhu (yana ƙaruwa lokacin nuna abubuwa masu haske)
- sabotclip: sassaucin yankakken sauti (ci gaba da fadada a hankali a maimakon katsewar sigina kwatsam)
- launi: cire bayanai game da duk launuka RGB banda wanda aka ƙayyade
- xmedian: zana taswira a matsakaiciyar mahaɗan pixels don bidiyon shigarwa da yawa
- nuna: sauya sauti na sitiriyo zuwa bidiyo, yana nuna hulɗar sararin samaniya tsakanin tashoshin odiyo biyu
- barewa: Yana kawar da murdiya saboda rashin makirufo mara kyau ko matse sauti mai yawa yayin rikodin murya (yana kawar da tasirin sauti a banki).
Na sauran canje-canje waɗanda za a iya haskaka su:
- Ara ikon amfani da Clang don tattara fayilolin CUDA
- Tsarin ya haɗa da mai nazarin hoto a cikin tsarin GIF
- Supportara tallafi don ƙananan subtitles na ARIB STD-B24 (Bayanan martaba A da C) waɗanda aka yi amfani da su a cikin gudana ta MPEG-2 TS. Ana aiwatar da tallafi ta amfani da labaribb24 laburare;
- An cire dakin karatun libndi-newtek.
A ƙarshe, ga waɗanda suke so su girka ko sabunta FFmpeg, ya kamata su san cewa ana samun wannan kunshin a cikin yawancin rarraba Linux ko kuma idan sun fi so za su iya zazzage lambar asalin don tattarawa. daga mahaɗin da ke ƙasa.