Pambuyo pa miyezi khumi yachitukuko, phukusi la FFmpeg 4.4 la multimedia likupezeka, lomwe limaphatikizapo mndandanda wa mapulogalamu ndi zosungiramo zosungiramo zosungiramo zosungiramo zinthu zosiyanasiyana (kujambula, kutembenuza ndi kulembera ma audio ndi makanema). Phukusili limagawidwa pansi pa layisensi ya LGPL ndi GPL, chitukuko cha FFmpeg chikuchitika moyandikana ndi polojekiti ya MPlayer.
Zina mwazosintha zomwe zawonjezeredwa mu FFmpeg 4.4 zikuphatikiza:
- Kutha kugwiritsa ntchito VDPAU (Video Decode and Presentation) API ya hardware acceleration of video decoding in HEVC/H.265 (10/12bit) and VP9 (10/12bit) formats yakhazikitsidwa.
- Thandizo limaperekedwa pakujambula makanema mumtundu wa AV1 pogwiritsa ntchito injini zothamangitsira zida za NVIDIA NVDEC ndi Intel QSV (Quick Sync Video), komanso kugwiritsa ntchito DXVA2/D3D11VA API.
- Anawonjezera luso loyika AV1 mu monochrome pogwiritsa ntchito laibulale ya libaom (imafuna mtundu wa 2.0.1 osachepera).
- Kutha kuyika kanema mumtundu wa AV1 kwakhazikitsidwa pogwiritsa ntchito encoder ya SVT-AV1 (Scalable Video Technology AV1), yomwe imagwiritsa ntchito luso la computing la hardware lomwe limapezeka mu Intel CPUs zamakono.
- Chowonjezera chotulutsa kudzera pa AudioToolbox chimango.
- Thandizo lowonjezera la gophers protocol (gopher over TLS).
- Thandizo lowonjezera la protocol ya RIST (Reliable Internet Stream Transport) pogwiritsa ntchito librist.
- Thandizo lachotsedwa pa encoder ya libwavpack.
- Onjezani ma decoder atsopano: AV1 (yokhala ndi ma decoding a hardware), AV1 (kudzera VAAPI), AVS3 (kudzera libuavs3d), Cintel RAW, PhotoCD, PGX, IPU, MobiClip Video, MobiClip FastAudio, ADPCM IMA MOFLEX, Argonaut Games Video, MSP v2 ( Microsoft Paint), Simbiosis IMX, Digital Pictures SGA.
- Onjezani ma encoder atsopano: RPZA, PFM, Cineform HD, OpenEXR, SpeedHQ, ADPCM IMA Ubisoft APM, ADPCM Argonaut Games, High Voltage Software ADPCM, ADPCM IMA AMV, TTML (ma subtitles).
- Anawonjezera media chidebe packers (muxer): AMV, Rayman 2 APM, ASF (Argonaut Games), TTML (ma subtitles), LEGO Racers ALP (.tun ndi .pcm).
- Owonjezera media chidebe unpackers (demuxer): AV1 (Low overhead bitstream), ACE, AVS3, MacCaption, MOFLEX, MODS, MCA, SVS, BRP (Argonaut Games), DAT, aax, IPU, xbm_pipe, binka, Simbiosis IMX, Digital Pictures SGA , MSP v2 (Microsoft Paint).
- Opanga atsopano awonjezedwa: IPU, Dolby E, CRI, XBM.
- Zosefera Zatsopano:
- chromanr - amachepetsa phokoso lamtundu muvidiyo.
- afreqshift ndi aphaseshift - sinthani ma frequency ndi gawo la mawu.
- adenorm - imawonjezera phokoso pamlingo wina.
- Speechnorm - imapangitsa kuti mawu azikhala okhazikika.
- asupercut - amadula ma frequency pamwamba pa 20 kHz kuchokera pamawu.
- asubcut - imadula ma frequency a subbuffer.
- asuperpass ndi asuperstop - kukhazikitsa zosefera pafupipafupi za Butterworth.
- ma shufflepixels - amakonzanso ma pixel mumafelemu amakanema.
- tmidequalizer - kugwiritsa ntchito mphamvu ya Temporal Midway Video Equalization.
- estdif - kusuntha pogwiritsa ntchito algorithm ya Edge Slope Tracing.
- epx ndi fyuluta yowonjezera yopanga zojambula za pixel.
- kukameta ubweya - kumeta ubweya wamavidiyo kusintha.
- kirsch - Ikani opareshoni ya Kirsch ku kanema.
- colortemperature - sinthani kutentha kwa kanema.
- colorcontrast - imasintha kusiyanitsa kwamitundu pakati pa zigawo za RGB za kanema.
- colorcorrect - kusintha koyera kwa kanema.
- colorize - kupaka utoto pavidiyo.
- kuwonetseredwa - kumasintha mawonekedwe a kanema.
- monochrome - amasintha kanema wamtundu kukhala grayscale.
- aexciter - m'badwo wa zida zomveka zomveka kwambiri zomwe sizikupezeka pachizindikiro choyambirira.
- vif ndi msad - kutsimikiza kwa VIF (Visual Information Fidelity) ndi MSAD (Mean Sum of Absolute Differences) kuti awone kusiyana pakati pa mavidiyo awiri.
- identity - kudziwa mulingo wa kusiyana pakati pa makanema awiri.
- sets - imayika PTS (sitampu ya nthawi yowonetsera) ndi DTS (sitampu ya nthawi yolemba) m'mapaketi (bitstream).
Source: opennet.ru