Media Bitrate Jatebɔlan
Jatebɔ kɛ bitrates ɲumanw na jogo hakɛw ni plateformes danfaralenw na. A dafalen don wideyow dilannikɛlaw, streamers ani kɔnɔkow ɲɛnabɔbagaw ma minnu b’a fɛ ka jogo ɲuman caya k’a sɔrɔ u bɛ filenw hakɛ ni u ka bandwidth ɲɛ.
Jate kɛ i ka Bitrate Optimal la
Aw bɛ kunnafoni ninnu dafa walasa ka bitrates ladilikanw sɔrɔ aw ka kunnafonidilanw kama. An ka jatebɔlan bɛ jateminɛ kɛ resolution, frame rate, content type, ani target platform walasa ka bitrate ladilikan ɲumanw di.
Mun na an bɛ baara kɛ ni an ka jatebɔlan ye min bɛ wele ko Bitrate
Balance de qualité & Taille optimale
Aw ye balansi dafalen sɔrɔ yecogo ɲuman ni dosiye hakɛ cɛ n’an ka bitrate ladilikan hakilitigiw ye minnu sinsinnen bɛ sɛgɛsɛgɛli bɛɛ kan.
- Plateforme kɛrɛnkɛrɛnnenw ka ɲɛtaa
- Jateminɛ minnu bɛ kɛ kɔnɔkow dɔnni na
- Sugandili caman minnu bɛ kɛ jogoɲumanya la
Kodeki dɛmɛni bɛɛjɛfanga
Aw ye laadilikan kɛrɛnkɛrɛnnenw sɔrɔ bi kodekiw kan minnu bɛ H.264, H.265/HEVC, VP9, ani AV1, u kelen-kelen bɛɛ ni sigicogo ɲumanw bɛ u la.
- Kodeki kɛrɛnkɛrɛnnenw ka bitrate ladilanni
- Next-gen codec dɛmɛni
- Baarakɛlaw ka codec preset
Plateforme-Optimisé Livraison
Aw k’a lajɛ ko aw ka kɔnɔkow ka ɲɛ ka ɲɛ plateforme kelen-kelen bɛɛ kan ni bitrate ladilikanw ye minnu bɛ kɛ ka kɛɲɛ ni YouTube, Twitch, Facebook ani fɛn wɛrɛw ye.
- Plateforme kɛrɛnkɛrɛnnenw ka kodɔn ladilikanw
- A kɛra ka ɲɛ ka kɛɲɛ ni plateforme kelen-kelen bɛɛ ka algorithm ye
- A bɛ ladamu ni plateforme wajibiyalen labanw ye
Media Bitrates faamuyali
Bitrate ye mun ye ani mun na a nafa ka bon?
Bitrate ye kunnafoni hakɛ ye min bɛ baara kɛ waati kelen kɔnɔ, a ka c’a la, a bɛ suman bitikiw la segin kɔnɔ (bps), kilobiti segin kɔnɔ (Kbps), walima megabiti segin kɔnɔ (Mbps). Ni an bɛ fɔ cogo nɔgɔman na, a b’a jira ko kunnafoni hakɛ min bilalen bɛ i ka videyo walima i ka lamɛntaw kɔnɔkow jirali kama.
A ka c’a la, bitrate minnu ka bon, olu kɔrɔ ye ko jogo ɲuman ka ɲi bawo kunnafoni caman bɛ kɛ ka kunnafonidilanw kunnafoniw mara, o bɛ na ni kunnafoni caman ye ani ka jɛya. Nka, bitrate (bitrate) minnu ka bon, olu fana bɛ na ni file (dosiyɛri) hakɛw bonya ye wa u bɛ bandwidth (banda) caman de wajibiya streaming (fɔlikan) kama. Bitrate ɲuman sɔrɔli nafa ka bon kosɛbɛ walasa ka jogoɲumanya balan ni jateminɛ nafamaw ye i n’a fɔ dosiye hakɛ, upload/download waati, ani streaming baarakɛcogo.
Wideyo Bitrate (Wideyo Bitrate).
A bɛ i ka videwo yecogo ɲɛnabɔ. A dɔgɔyara kojugu, wa i bɛna fɛn dilannenw ye minnu bɛ kɛ bloki ye, fɛn minnu bɛ kɛ fɛn ye min tɛ jɛya, ani fɛn fitininw bɔnɛni. A ka bon kojugu, wa i bɛ ka fɛnw marayɔrɔ tiɲɛ k’a sɔrɔ i ma ɲɛtaa yelenw kɛ.
Audio Bitrate (Bitrate) min bɛ fɔ
A bɛ mankan cogoya dantigɛ. Odio bitrates dɔgɔyali bɛ se ka kɛ sababu ye ka tintin mankan bɔ, ka dynamic range bɔnɛ, ani kɔkan mankan. A ka c’a la, odio bɛ kunnafoniw wajibiya minnu ka dɔgɔ kosɛbɛ ka tɛmɛ videyo kan.
Balance sɔrɔli
Bitrate optimisation (bitrate optimisation) seko ye ka yɔrɔ duman sɔrɔ yɔrɔ min na jogo bɛ bonya kosɛbɛ k’a sɔrɔ filen hakɛ ni bandwidth wajibiyalenw bɛ mara ka bɛn i lamɛnbagaw ma.
Fɛn minnu bɛ nɔ bila Bitrate ɲuman na
Fɛn caman bɛ nɔ bila bitrate min bɛna nɔ ɲuman bɔ i ka kunnafonidilan kɛrɛnkɛrɛnnenw na. An ka jatebɔlan bɛ nin ko ninnu jateminɛ walasa ka laadilikanw di minnu bɛ tiɲɛ kosɛbɛ:
Ŋaniya
Resolutions (4K, 1440p, 1080p) minnu ka bon (4K, 1440p, 1080p) la, pixel (pixel) caman bɛ sɔrɔ u la wa u bɛ bitrates (bitrate) caman de wajibiya walasa ka jogo sabati. 4K wideyow mago bɛ kunnafoni caman na kosɛbɛ ka tɛmɛ 720p wideyow kan minnu kɔnɔkow ye kelen ye.
Kalansenw ka Taa
Wideyo minnu bɛ 60fps la, olu mago bɛ 30fps wideyow ka bitrate 1,5x ɲɔgɔn na walasa ka u jogo kelen mara, bawo frame caman bɛ yen minnu bɛ se ka kodɔn waati kelen kɔnɔ.
Kɔnɔkow gɛlɛya
Kɔnɔkow minnu bɛ taa teliya la ni kunnafoni caman ye (spor, walekɛyɔrɔw) olu bɛ bitrates (bitrates) caman de wajibiya ka tɛmɛ kunnafoni jɔlenw kan (interviews, presentations) walasa ka i yɛrɛ tanga lamaga-lamagalifɛnw ma ani ka jɛya sabati.
Codec ka baarakɛcogo ɲuman
Kodeki kuraw i n’a fɔ H.265/HEVC ani AV1 bɛ se ka jogo kelen sɔrɔ bitarasi dɔgɔmanninw na ni i y’a suma ni kodeki kɔrɔw ye i n’a fɔ H.264, tuma caman na, u bɛ kunnafoniw dɔgɔya 30-50%.
Jigincogo
Streaming platforms bɛ se k’i ka kunnafoniw transcode, o la sa, ka source ɲuman di, o nafa ka bon. Téléchargements bɛ se ka nafa sɔrɔ bitrates caman na bawo bandwidth dantigɛliw bɛ nɔ bila telesarse fɔlɔ dɔrɔn de la.
Plateforme Laɲini ye
Plateforme (jɔyɔrɔ) suguya wɛrɛw ka ɲininiw ni baarakɛcogo tɛ kelen ye. YouTube, Twitch, Netflix ani sosiyete ka kunnafonidilanw kelen-kelen bɛɛ n’u ka sigida ɲumanw don.
Bitrate Units & Yɛlɛmacogo
Bitrate unitw faamuyali ani u bɛ tali kɛ file hakɛ la cogo min na, o nafa ka bon walasa ka kunnafonidilanw bolodacogo ɲuman sɔrɔ:
| Inite | Sɛnboli | Nafama | A ka c’a la, a bɛ baara kɛ ni a ye |
|---|---|---|---|
| Bitiw segin kɔnɔ | bps (bps) ye | Base unit (yɔrɔ basigilen). | Fɛɛrɛko ɲɛfɔli |
| Kilobitiw segin kɔnɔ | Kbps ye | 1000 bps ye | Odio encoding, videyo min ka dɔgɔ |
| Megabits segin kɔnɔ | Mbps (Mbps) ye | 1.000.000 bps ye | Wideyo kodɔncogo jɔnjɔn |
| Gigabits segin kɔnɔ | Gbps ye | 1.000.000.000 bps ye | Wideyo min ma sɛgɛsɛgɛ, min bɛ se ka bɔ kɛnɛ kan |
Bitrate ka File Size jiginni
Walasa ka filen hakɛ jateminɛ ka bɔ bitrate la, aw bɛ nin formula in kɛ:
Misali la, miniti 10 wideyow ni 5 Mbps bɛ se ka kɛ:
Bitrates Recommandé Par Plateforme
Plateforme suguya wɛrɛw ka wajibiw ni ladilikanw tɛ kelen ye walasa ka wideyow dicogo ɲuman sɔrɔ. Nin ye ɲɔgɔndanba ye min bɛ kɛ ni streaming ni social media platforms belebelebaw ye:
YouTube ka Bitrates ladilikanw
YouTube bɛ i ka wideyow bɔcogo caman dilan a yɛrɛma jogo hakɛ danfaralenw na, nka n’i y’a bila ni bitrate ye min ka bon, o bɛ jogo ɲumanba sabati filɛlikɛlaw bolo.
| Ŋaniya | Kalansenw hakɛ dantigɛlen (24-30 FPS) . | Kalansenw ka ca (48-60 FPS) . | Codec min bɛ ladilikan di |
|---|---|---|---|
| 2160p (4K) ye. | 35-45 Mbps ye | 53-68 Mbps ye | H.264, VP9, AV1, ani a ɲɔgɔnnaw |
| 1440p (2K) ye. | 16-24 Mbps ye | 24-36 Mbps ye | H.264, VP9 ye |
| 1080p (HD dafalen) . | 8-12 Mbps ye | 12-18 Mbps ye | H.264 |
| 720p (HD) ye. | 5-7,5 Mbps (Mbps) la | 7,5-11 Mbps ye | H.264 |
| 480p (SD) ye. | 2,5-4 Mbps ye | 4-6 Mbps ye | H.264 |
| 360p | 1-1,5 Mbps ye | 1,5-2,25 Mbps ye | H.264 |
YouTube ɲɛnabɔli laadilikanw
- YouTube b’a yɛrɛ ka transcoding kɛ, o la, ka source file ɲuman di, o nafa ka bon.
- HDR kɔnɔkow kama, baara kɛ ni BT.2020 kulɛri yɔrɔ ye ani bitiki 10-bit walima ka tɛmɛ o kan.
- YouTube b’a fɔ ko i ka baara kɛ ni H.264 High Profile ye walasa ka kunnafoni jɔnjɔnw sɔrɔ ani ka VP9 kɛ walasa ka ɲɛfɔli kɛ ka ɲɛ.
- Odio ka kan ka kɛ AAC-LC ye ni 128 kbps ye stereo la walima 384 kbps ye 5.1 surround la.
- YouTube bɛ wideyow baara ka ɲɛ ni a bɛ baara kɛ ni sekɔndi 2 keyframe intervals ye.
Twitch Recommandé Bitrates (Bitrates) minnu bɛ fɔ
Twitch bɛ ni bitrate dan kɛrɛnkɛrɛnnenw ye jɛɲɔgɔnw hakɛ danfaralenw na. Nin laadilikanw bɛ dɛmɛ don walasa i ka sɛrɛkili ka sabati ani ka se ka sɔrɔ filɛlikɛlaw fɛ ni ɲɔgɔndan teliya suguya caman ye.
| Ŋaniya | 30 FPS ye | 60 FPS ye | Kɔlɔsiliw |
|---|---|---|---|
| 1080p | 4,5-6 Mbps ye | 6-8 Mbps ye | A bɛ fɔ jɛɲɔgɔnw/Jɛkuluw ye |
| 720p | 3-4,5 Mbps (Mbps) la | 4,5-6 Mbps ye | A bɛ fɔ streamer fanba ma |
| 480p | 1,5-3 Mbps ye | 3-4,5 Mbps (Mbps) la | Ka ɲɛsin upload bandwidth danma ma |
Twitch Optimisation Ladilikanw
- Twitch ka hard cap ye 8 Mbps ye i jɛɲɔgɔn cogoya mana kɛ min o min ye.
- Odio ka kan ka kɛ AAC ye ni 128-160 kbps ye walasa ka se ka kɛ cogo ɲuman na ani ka bɛn ɲɔgɔn ma.
- Baara kɛ ni “Main” profile ye H.264 kodɔnni kama ni CPU “medium” fo “faster” ye min bilalen bɛ sen kan walasa ka balansi ɲuman sɔrɔ.
- N’i tɛ Partner walima Affiliate ye, i k’a lajɛ ka streaming kɛ 720p60 kan walasa ka filɛlikɛlaw ka ɲɛnamaya kɛcogo ɲuman sɔrɔ.
- Aw ye aw ka filɛlikɛlaw ka bandwidth jateminɛ – bɛɛ tɛ se ka bitrate caman ka streams lajɛ k’a sɔrɔ buffer ma kɛ.
Facebook ka Bitrates ladilikanw
Facebook Live ni Facebook Video ka ladilikanw tɛ kelen ye walasa i ka kunnafoniw ka se jamaba ma k’a sɔrɔ u bɛ jogo ɲuman mara.
| Ŋaniya | Ɲɛnamaya kɛcogo | Wideyow bilali | Kɔlɔsiliw |
|---|---|---|---|
| 1080p | 4-6 Mbps ye | 8-12 Mbps ye | FB Live ka ɲɛfɔli maksimali |
| 720p | 2,5-4 Mbps ye | 4-8 Mbps ye | A bɛ ladilikan di baarakɛla fanba ma |
| 480p | 1-2,5 Mbps ye | 2-4 Mbps ye | Walasa ka bandwidth danmadɔ sɔrɔ |
| 360p | 0,5-1 Mbps ye | 1-2 Mbps ye | Sugandili min bɛ se ka kɛ mobili kɔnɔ |
Facebook ka ɲɛtaa laadilikanw
- Facebook bɛ ladilikan di ko bitrate (bitrate) hakɛ min bɛ se ka kɛ 4 Mbps ye, walasa ka live streaming standard (labɛnni ɲɛnama) kɛ.
- Wideyo minnu bilalen don, Facebook bɛ sɔn fo ka se 10 Gbps filew ma, wa a bɛna u transcode.
- Facebook bɛ baara Kɛ ka ɲɛ ni H.264 codec, High profile, ani 2-second keyframe intervals ye.
- Odio ka kan ka kɛ AAC ye 96-128 kbps la live ani 128-256 kbps la uploads la.
- Facebook bɛna i ka kunnafoniw kodɔn kokura, o la a ka fisa i ka source file ɲuman di.
Vimeo Bitrates minnu bɛ ladilikan di
Vimeo bɛ dɔn wideyow fɛ minnu ka ɲi kosɛbɛ, wa a bɛ laadilikan kɛrɛnkɛrɛnnenw di ka da i ka kɔnɔkow suguya kan ani i ka laɲini jogo kan.
| Ŋaniya | Quality (jogo ɲuman) min bɛ wele ko Standard | Premium Quality ye | Codec min bɛ ladilikan di |
|---|---|---|---|
| 4K (2160p) ye. | 30-60 Mbps (Mbps) la | 40-80 Mbps ye | H.264, ProRes., Bamako, Mali |
| 2K (1440p) ye. | 16-24 Mbps ye | 20-30 Mbps ye | H.264, ProRes., Bamako, Mali |
| 1080p | 10-20 Mbps ye | 15-25 Mbps ye | H.264 |
| 720p | 5-10 Mbps (Mbps) la | 8-12 Mbps ye | H.264 |
| SD (480p) ye. | 3-5 Mbps ye | 5-8 Mbps ye | H.264 |
Vimeo Optimisation Ladilikanw
- Vimeo bɛ sɔn bitrates (bitrates) caman ma ka tɛmɛ plateforme caman kan, o bɛ sira Di baarakɛlaw ka fɛnw bilali ma.
- Walasa ka ɲɛtaa ɲuman sɔrɔ, aw bɛ H.264 kɛ ni High profile ye walima ProRes 422 ye 4K kɔnɔkow la.
- Vimeo bɛ sɔn ani ka 10-bit kulɛri juguya mara HDR kɔnɔkow kama.
- Odio ka kan ka kɛ AAC ye ni 320 kbps ye stereo la walima fo ka se 512 kbps ma surround mankan na.
- Vimeo Plus, Pro, ani Business jatew bɛ ni fɛnw bilali dan ye ani u ka jogo sugandicogo tɛ kelen ye.
Instagram ka Bitrates Recommandé
Instagram bɛ ni wajibi kɛrɛnkɛrɛnnenw ye wideyow cogoya wɛrɛw la i n’a fɔ Stories, Reels, IGTV, ani standard posts.
| Fɔcogo | Ŋaniya | Bitrate min bɛ ladilikan di | Janya min ka bon kosɛbɛ |
|---|---|---|---|
| Instagram ka maanaw | 1080×1920 (9:16) | 3-5 Mbps ye | Seginnkanni 15 |
| Instagram Feed ye | 1080×1080 (1:1) | 5-8 Mbps ye | Seginnkanni 60 |
| Instagram Bobines (Bobinets) ye | 1080×1920 (9:16) | 5-8 Mbps ye | Seginnkanni 30 |
| IGTV ye | 1080×1920 (9:16) | 8-10 Mbps ye | Miniti 60 kɔnɔ |
Instagram Optimisation Ladilikanw
- Instagram bɛ wideyow degun kosɛbɛ, o la, n’i y’a daminɛ ni sɔrɔyɔrɔ ye min ka ɲi kosɛbɛ, o bɛ dɛmɛ ka kunnafoni fitininw mara.
- Baara kɛ ni H.264 codec ye ani ka i ka keyframe interval sigi sekɔndi 1-2 o segin 1-2.
- Odio ka kan ka kɛ AAC ye 128 kbps la walasa ka jogo ɲuman sɔrɔ Instagram ka baara kɛlen kɔfɛ.
- Stories and Reels ta fan fɛ, 9:16 cogoya jɔlen bɛ baara kɛ ka ɲɛ ni lɛtɛrɛbɔri fitinin ye.
- Instagram bɛ wideyow fɛ minnu bɛ yeelen bɔ, minnu bɛ ɲɛnamaya, ni danfara ɲuman bɛ u ni ɲɔgɔn cɛ walasa ka jɛɲɔgɔnya ɲuman sɔrɔ.
TikTok ka Bitrates ladilikanw
TikTok labɛnna ka ɲɛ mobili lajɛ kama ni cogoya kɛrɛnkɛrɛnnenw wajibiyalenw ye walasa i ka kɔnɔkow ka ɲɛ kosɛbɛ plateforme kan.
| Ŋaniya | Aspect Ratio (Aspect Ratio) ye | Bitrate min bɛ ladilikan di | Janya min ka bon kosɛbɛ |
|---|---|---|---|
| 1080×1920 | 9:16 (Jɛkulu jɔlen) | 8-12 Mbps ye | Miniti 3 (standard) . |
| 1080×1920 | 9:16 (Jɛkulu jɔlen) | 10-15 Mbps ye | Miniti 10 (a janyalen don) . |
| 1080×1080 | 1:1 (Kɛrɛnkɛrɛnnenya la) | 6-10 Mbps ye | Miniti 3 kɔnɔ |
| 1920×1080 | 16:9 (Jɛkulu) | 8-12 Mbps ye | Miniti 3 kɔnɔ |
TikTok ka ɲɛtaa laadilikanw
- TikTok bɛ baara kɛ ka ɲɛ ni ja jɛlenw ye minnu jɛlen don, minnu labɛnna ka ɲɛ mobili lajɛ kama.
- 9:16 videyo jɔlen cogoya bɛ filɛli kɛcogo ɲuman di plateforme kan.
- H.264 kodeli ni bitrate caman bɛ dɛmɛ ka jogo lakana TikTok ka compression fɛ.
- Odio nafa ka bon kosɛbɛ TikTok kan – baara kɛ ni odio jɛlen ye ni 128-256 kbps ye.
- TikTok ka algorisimu bɛ wideyow fɛ minnu ka fɛɛrɛ ka ɲi ani minnu yecogo jɛlen don.
Baara kɛcogo ni Bitrate Calculator ye
Aw ye aw ka kunnafonidilanw kunnafoni sɛbɛn
A daminɛ ni i b’a fɛ ka ɲɛfɔli kɛ, i ka frame rate, i ka kɔnɔkow suguya ani i ka laɲini plateforme. Nin paramɛtɛrɛ kɔrɔlenw b’an dɛmɛ ka bitrate hakɛ ɲuman dɔn i mago kɛrɛnkɛrɛnnenw na. I ka kɛ mɔgɔ tigitigiw ye i seko bɛɛ la walasa ka laadilikanw di minnu bɛ tiɲɛ kosɛbɛ.
Tekniki Paramɛtiriw ɲɛfɔ
I ka videyo codec (H.264, H.265/HEVC, VP9, AV1) ani i ka audio quality settings sugandi. Baarakɛlaw minnu bɛ taa ɲɛ, olu fana bɛ se ka paramɛtiri wɛrɛw ɲɛfɔ i n’a fɔ HDR kɔnɔkow suguya ani optimisation preferences walasa ka jatebɔ tigitigiw kɛ.
Jatebɔ kɛ Bitrate Optimal kan
“Calculate Optimal Bitrate” butɔn digi walasa ka ladilikanw dilan minnu bɛ kɛ i yɛrɛ ye. An ka algorisimu bɛ paramɛtiriw bɛɛ Sɛgɛsɛgɛ ani ka bitrate (bitrate) jatebla dɔnniya siratigɛ la, minnu bɛ jogo ni dosiye hakɛ Blà ɲɔgɔn na i ka kɔnɔko kɛrɛnkɛrɛnnenw na.
Ladilikanw lajɛ
Sɛgɛsɛgɛli kɛ jaabi caman na, i n’a fɔ videyo ni odio bitrates ladilikan minnu bɛ fɔ, file hakɛ jateminɛlenw, ani fɛɛrɛko laadilikanw minnu bɛ kɛ plateforme kɛrɛnkɛrɛnnenw kan. An bɛ jogo suguya caman di walasa i ka se ka min sugandi min bɛ baara kɛ ka ɲɛ i ka ko kɛrɛnkɛrɛnnen na.
Settings (Labɛnniw) kɛ i ka porogaramu kɔnɔ
Baara kɛ n’an ka laadilikanw ye n’i bɛ i ka kodɔn porogaramuw labɛn (OBS, Premiere Pro, DaVinci Resolve, Handbrake, a ɲɔgɔnnaw). Aw bɛ bitrate sugandilenw, codec settings ani paramètres wɛrɛw waleya walasa ka jogo ɲuman sɔrɔ i ka media kɔnɔkow la.
Ɲininkali minnu bɛ kɛ tuma caman na
Bitrate ɲuman ye mun ye 1080p videyo la?
Ni 1080p (1920×1080) wideyow bɛ 30fps la, a ka c’a la, bitrate ɲuman bɛ daminɛ 8-12 Mbps la kɔnɔkow la minnu bɛ kɛ ni H.264 encoding ye. Walasa ka kunnafoni fangama caman sɔrɔ i n’a fɔ farikoloɲɛnajɛ walima wale kɛcogo, i bɛ se ka mago ɲɛ 12-15 Mbps la. Ni aw bɛ baara kɛ ni 60fps ye, aw bɛ dɔ fara o hakɛw kan ni 50% ɲɔgɔn ye. Kodeki minnu bɛ baara kɛ ka ɲɛ i n’a fɔ H.265/HEVC walima AV1, olu bɛ se ka o jogo kelen sɔrɔ ni 30-50% ye bitiriti dɔgɔmanninw na. I ka ɲinini kɛrɛnkɛrɛnnenw bɛ se ka ɲɔgɔn ta ka kɛɲɛ ni kɔnɔkow gɛlɛya ye ani laɲini yɔrɔ ye.
Bitrate bɛ nɔ bila filen hakɛ la cogo di?
Bitrate bɛ filen hakɛ dantigɛ k’a ɲɛsin a yɛrɛ ma ni formula nɔgɔman ye: File Size (MB) = Bitrate (Mbps) × Duration (seconds) ÷ 8. Misali la, miniti 10 wideyow min kodɔnna ni 10 Mbps ye, o bɛna kɛ sababu ye ka file hakɛ dɔ sɔrɔ min bonya bɛ se MB 750 ma (10 Mbps × segin 600 ÷ 8). Bitrates (bitrates) minnu ka bon, olu bɛ na ni file belebelebaw ye nka a ka c’a la, u fana bɛ u jogo ɲɛ. Balance ɲuman sɔrɔli bɛ bɔ i ka jogoɲumanya ɲininiw na ani a maracogo/bandwidth gɛlɛyaw la.
Mun na streaming bɛ bitrates wɛrɛw de wajibiya ka tɛmɛ downloads kan?
Streaming ani downloadable content (bitrate) wajibiyalenw tɛ kelen ye fɔlɔ k’a sababu kɛ bandwidth (bandwidth) gɛlɛyaw ye. Streaming bɛ waati yɛrɛyɛrɛ lase de wajibiya, o la, bitrate ka kan ka sabati ni filɛlikɛla ka ɛntɛrinɛti ɲɔgɔndan ye walasa ka buffering (buffering) bali. Streming platform fanba bɛ bitrates dɔgɔyali laadi walasa ka se ka sɔrɔ jamaba fɛ. Nka, kunnafoni minnu bɛ telesarse, olu tɛ dan sigi waati yɛrɛ la, o bɛ sira di bitrates ni jogo caman ma. Ka fara o kan, streaming platforms ka teli k’u yɛrɛ ka transcoding kɛ walasa ka jogoɲumanya hakɛ caman dilan, o la, ka source file ɲuman di, o nafa ka bon hali ni baarakɛla laban bɛ se ka streaming kɛ ni bitrate dɔgɔman ye.
Danfara jumɛn bɛ CBR, VBR, ani CRF kodɔnni cɛ?
Ninnu ye hakɛ kɔlɔsili cogoya wɛrɛw ye minnu bɛ bitrate tilatilali cogoya jira:
- CBR (Bit hakɛ basigilen): A bɛ bitrate kelen mara wideyo bɛɛ kɔnɔ, a gɛlɛya mana kɛ cogo o cogo. O ka ɲi kosɛbɛ streaming la yɔrɔ minnu na bandwidth consistency nafa ka bon nka a bɛ se ka kɛ nafama ye kɔnɔkow caman na.
- VBR (Bit hakɛ caman ɲɔgɔnna): A bɛ bitrates sanfɛtaw di scene complexes ma ani bitrates dɔgɔmanw di scenes nɔgɔmanw ma. O bɛ jogo ɲuman Bɔ ni bitrate (bitrate) cɛmancɛ kelen ye ni i y’a suma ni CBR ye, o b’a To a ka ɲi kosɛbɛ kɔnɔkow telesarselenw na.
- CRF (Facteur de taux constant): 1. Bamako, Mali. A bɛ jogo sabatilen mara sanni ka bitrate (bitrate) mara, o b’a to encodeur (daɲɛgafe) bɛ se ka baara kɛ ni bitrate (bitrate) fɛn o fɛn ye min ka kan walasa ka jogo hakɛ kofɔlen mara. O ka ɲi kosɛbɛ sɛbɛnmarayɔrɔw la ani ko minnu na, jogo bɛ bila jɔyɔrɔ fɔlɔ la ka tɛmɛ dosiye hakɛ fɔcogo kan.
Ni streaming ye, a ka c’a la, CBR walima capped VBR de bɛ fɔ. Wideyo minnu bɛ telesarse, a ka c’a la, VBR walima CRF bɛ baarakɛcogo ɲuman di.
Kodeki kura i n’a fɔ H.265/HEVC ani AV1 bɛ se ka suma ni H.264 ye cogo di?
Kodeki kuraw bɛ ɲɛtaa caman di baarakɛcogo ɲuman ma ka tɛmɛ H.264 kan min bɛ baara kɛ kosɛbɛ:
- H.265/HEVC: 1. Bamako, Mali. A bɛ se ka kɛ ni H.264 ka jogo kelen ye ni 40-50% ɲɔgɔn ye bitiriti dɔgɔmanninw na, nka a bɛ baarakɛcogo fanga caman de wajibiya walasa ka kodɔn ani ka dekodɔn. A bɛ Dɛmɛ kosɛbɛ minɛn kuraw la wa a ka ɲi 4K kɔnɔkow ma.
- AV1: 1 . Hali a bɛ baara kɛ ka ɲɛ ka tɛmɛ HEVC kan, a bɛ o jogo kelen di ni 20-30% ye bitiriti dɔgɔman ye ka tɛmɛ HEVC kan (walima 50-60% ka dɔgɔn ka tɛmɛ H.264 kan). Nka, AV1 kodɔnni bɛ baara Kɛ kosɛbɛ sisan, hali n’a y’a Sɔrɔ dekodɔn dɛmɛni bɛ ka bonya joona.
- VP9 ye: Google ka ɲɔgɔndan min bɛ HEVC fɛ, o bɛ baarakɛcogo ɲɛtaa ɲɔgɔn di H.264 kan ni navigatɔrɔn dɛmɛni ɲuman ye ka tɛmɛ HEVC kan nka a ka fɛnɲɛnamafagalanw teliya ka dɔgɔ.
Ni i bɛ codec sugandi, i ka jateminɛ kɛ ka bɛn i ka minɛnw/plateformes laɲinitaw ma, kodɔn waati dantigɛliw, ani jogo/bonya wajibiyalenw. H.264 tora sugandili ye min bɛ bɛn kosɛbɛ, k’a sɔrɔ kodɔn kura bɛ baarakɛcogo ɲuman di ni bɛnkan walima kodɔn teliya musaka ye.
Mun de nafa ka bon kosɛbɛ jogoɲumanya la: resolution walima bitrate?
Resolution ni bitrate fila bɛɛ bɛ nɔba bila wideyow jogo la, nka u nafa bɛ danfara ka kɛɲɛ ni u kɔnɔkow ye:
Ŋaniya bɛ pixel hakɛ dantigɛ karamɔgɔ kelen-kelen bɛɛ kɔnɔ, ka nɔ bila detayɛli seko ni nɔgɔya la. Nka ni bitrate (bitrate) ka dɔgɔ kojugu resolution (fɔcogo) la, i bɛ compression artifacts (daɲɛ-jɔ-fɛnw) Ye minnu bɛ resolution (fɔcogo kɔrɔ) nafaw sɔsɔ.
Bitrate (bitrate) bɛ kɛ bɛ kunnafoni hakɛ min kɛ walasa ka wideyo segin kelen-kelen bɛɛ kodɔn, o bɛ nɔ bila tigitigi kunnafoni fitininw ni lamagacogo bɛ se ka mara cogo min na. Bitrate (bitrate) min ka bon ni resolution (fɔcogo) dɔgɔman ye, o ka teli ka ɲɛ ka tɛmɛ resolution (fɔcogo) kan min ka bon ni bitrate (bitrate) bɛrɛ tɛ.
Fɛɛrɛ ɲuman ye ka u fila bɛɛ balansi ka kɛɲɛ ni i kɔnɔkow ye. Walasa ka ɲɛjirali caman kɛ, minnu ka gɛlɛn, i ka bitrate (bitrate) bɛrɛbɛrɛ bila jɔyɔrɔ fɔlɔ la i ka ɲɛfɔli sugandilen kama. Walasa ka kunnafoni nɔgɔmanw sɔrɔ i n’a fɔ jiracogo walima animation, resolution bɛ se ka kɛ nafama ye ka tɛmɛ bitrates (bitrates) kan minnu ka bon kosɛbɛ. An ka jatebɔlan bɛ labɛncogo balannenw laadi minnu bɛ fɛn fila bɛɛ ɲɛnabɔ i ka kɔnɔkow suguya kɛrɛnkɛrɛnnen kama.
Bitrate hakilinaw ɲɛtaa
Hakilila-jɔ-cogo ɲuman
Bi wideyow kodekɛw bɛ baara kɛ ni hakili-la-ko-modɛliw ye walasa ka jogo ɲuman ye min bɛ ye, u kɛtɔ ka kunnafoni caman di fɛnw ma minnu nafa ka bon yecogo la, k’a sɔrɔ u bɛ kunnafoni fitininw digidigi minnu tɛ kɔlɔsi kosɛbɛ. Nin sariyakolow faamuyali bɛ se k’i dɛmɛ ka kodɔn desizɔnw ta ka ɲɛ:
Masking (Masking perceptif) min bɛ kɛ ni hakili ye
Adamaden ka ɲɛnayeli-minɛn tɛ mankan dɔn kosɛbɛ yɔrɔw la minnu bɛ lamaga kosɛbɛ walima yɔrɔw la minnu bɛ kɛ ni fɛnw ye kosɛbɛ. Kodekɛw bɛ o nafa sɔrɔ u kɛtɔ ka degun caman kɛ o yɔrɔw la k’a sɔrɔ jogo bɔnɛ ma kɔlɔsi.
Luma ni Chroma ka ɲɛnabɔli
Hadamadenw bɛ yeelen (luma) caman ɲɔgɔnna ye ka tɛmɛ kulɛri (chroma) caman ɲɔgɔnna kan. Kodec fanba bɛ baara kɛ ni chroma subsampling (4:2:0) ye walasa ka kulɛriw ɲɛfɔli dɔgɔya k’a sɔrɔ u bɛ yeelenbɔcogo dafalen mara, o bɛ bitrate dɔgɔya kosɛbɛ ni hakilijagabɔ nɔ fitinin ye.
Rate-Distortion Optimisation (Dɔgɔtɔrɔso-yɔrɔ-ko-ɲɛnabɔli).
Encodeur (kode) kɔrɔlenw bɛ latigɛ ba caman Kɛ bitikiw tilatilali cogo kan ni jatebɔ ye min bɛ Kɛ ni yecogo nɔ ye ni bitiri musaka ye. O algorisimuw ye ɲɛtaa sɔrɔ kosɛbɛ kɔsa in na codec (kɔdɛsɛ) bɔnsɔnw na, o min b’a To u bɛ Se ka jogo ɲuman Sɔrɔ o bitrate (bitrate) kelen na.
Encoding min bɛ kɔnɔkow dɔn
Bi kodɔn furakɛli fɛɛrɛw bɛ i ka kɔnɔkow sɛgɛsɛgɛ walasa ka bitrate ladilan cogo la min bɛ se ka kɛ ka kɛɲɛ ni gɛlɛya ye. Siginiden nɔgɔmanw bɛ bitiki dɔɔnin sɔrɔ k’a sɔrɔ ɲɛjirali gɛlɛnw bɛ caman sɔrɔ, o bɛ na ni jogo ye min bɛ faamuya cogo basigilen na ni bitiki hakɛ danmadɔ dɔgɔyara.
Paramètres encodage avancés (kodɔn kɛcogo kɔrɔlenw).
Bitrate sigicogo jɔnjɔnw kɔfɛ, nin paramɛtiri kɔrɔlenw bɛ se ka nɔba bila i ka kodɔncogo ɲuman n’a baarakɛcogo ɲuman na:
| Paramɛtiri | Cogojirali | Settings (labɛnw) minnu bɛ ladilikan di |
|---|---|---|
| Nivo Profil (Profil) Nivo | A bɛ gɛlɛya dantigɛliw ni fɛnɲɛnɛma-kuluw ɲɛfɔ minnu bɛ baara Kɛ ni kodɔn ye | H.264: High Profile ka ɲɛsin jogo ɲuman ma, Main ka ɲɛsin bɛnkan ma HEVC: Main 10 ye HDR ye, Main ye standard ye |
| Kalansenw minnu bɛ tali kɛ fɛnw na | Encodeur bɛ se ka frame hakɛ minnu jira ni a bɛ compress | 3-5 ka ɲɛsin streaming ma, 5-8 ka ɲɛsin jogo ɲumanba ma |
| B-kalansenw | Bidirectional predicted frames minnu bɛ tali kɛ karamɔgɔ tɛmɛnenw ni nataw bɛɛ la | 2-3 ye kɔnɔkow sariyalenw ye, 3-5 ye filimu ye |
| Aw ye ɲɛfɛla lajɛ | Encoder bɛ sɛgɛsɛgɛli kɛ ka taa ɲɛfɛ cogo min na walasa ka latigɛw kɛ | 40-100 frames for VBR encoding, nafa caman bɛ jogo ɲɛ |
| Quantisation Adaptif (Jateminɛ kɛcogo) min bɛ wele ko Adaptive | A bɛ quantisation (quantisation) caman ɲɔgɔnna sɛnɛ ka kɛɲɛ ni yecogo nafa ye | A dabɔ ani k’a bila “auto” walima a bɔɲɔgɔnko la i ka encoder kɔnɔ |
| Tune (fɔlikan) ye | Labɛnw sigilen don ka kɔn minnu bɛ kodɔncogo ɲɛ ka ɲɛsin kɔnɔko suguya kɛrɛnkɛrɛnnenw ma | “Filimu” ye filimuw ye, “Animation” ye dessin animéw ye, “Sɛnɛ” ye filimu sumanw marali ye |
Hali n’o sigicogo kɔrɔlenw bɛ se ka jogo ɲɛ kosɛbɛ, tuma caman na, u bɛ dɔ fara kodɔn waati kan. Walasa ka ɲɛtaa ɲuman sɔrɔ, i k’i ka kɔnɔko kɛrɛnkɛrɛnnenw kɔrɔbɔ kosɛbɛ ni paramɛtiriw faralen ɲɔgɔn kan cogo wɛrɛw la. Encodeur caman bɛ preset (daɲɛw) Kɛ i n’a fɔ “slower” walima “veryslow” minnu bɛ baara Kɛ ni optimisation (ɲɛnabɔli) ye min bɛ Kɛ u yɛrɛma.
Bitrate ka nɔ bila kunnafonidilanw ka ɲɛtaa n’u lasecogo la
Nizɛri kunnafonidilanw kɔnɔ, bitrate jɔlen bɛ i n’a fɔ fɛn kɔrɔba min bɛ i ka kɔnɔkow yecogo/fɔcogo ɲuman ni fɛɛrɛko wajibiyalenw bɛɛ latigɛ u lasecogo la. I kɛra kunnafoni dilanbaga ye wo, i kɛra kunnafonidila ye wo, walima i kɛra kunnafonidilanw kanubaga ye wo, bitrate jɔyɔrɔ faamuyali nafa ka bon walasa ka kunnafoni ɲumanw dilan.
Bitrate, min bɛ suman bitikiw la segin kɔnɔ (bps), o bɛ kunnafoniw hakɛ jira minnu bɛ baara kɛ walima minnu bɛ ci waati kelen kɔnɔ. Wideyo kɔnɔkow kama, a ka c’a la, bitrate (bitrate) minnu ka bon, olu bɛ na ni yecogo ɲuman ye bawo kunnafoni caman bɛ sɔrɔ walasa ka kunnafoni fitininw, kulɛri kunnafoniw ani lamaga jira. Nka, bitrate (bitrate) minnu ka bon, olu fana bɛ na ni filenw hakɛ caya ye ani ka bandwidth (bandwidth) wajibiyalenw caya, o bɛ jago jɔnjɔn dɔ lawuli jogoɲumanya ni nafolo sɔrɔcogo ɲuman cɛ.
Balan min bɛ kɛ ni jogo ni bonya ye
Jɛɲɔgɔnya min bɛ bitrate ni perceived quality cɛ, o tɛ linear ye. Ni i ye bitrate (bitrate) kɛ siɲɛ fila, o tɛ kɛ sababu ye ka jogo ye min bɛ ye, o bɛ kɛ siɲɛ fila ye. O yɔrɔ de la “jogoɲumanya plafond” hakilina bɛ kɛ nafama ye – yɔrɔ min na ni dɔ farali bita hakɛ kan ka taa a fɛ, o bɛ nafa dɔgɔyali lase jogoɲumanya ɲɛtaa yelenw na. An ka Media Bitrate Calculator bɛ dɛmɛ ka nin yɔrɔ ɲuman in dɔn yɔrɔ min na jogo bɛ bonya kosɛbɛ k’a sɔrɔ nafolo ma tiɲɛ.
Kɔnɔkow suguya wɛrɛw bɛ ni bitrate ɲininiw ye minnu tɛ kelen ye kosɛbɛ. Kɔnɔkow jɔlen ni lamaga fitinin ye (i n’a fɔ ɲininkaliw walima ɲɛjiraliw) bɛ se ka jogo ɲuman sɔrɔ ni bitrates dɔgɔyara kosɛbɛ. O ni kunnafoni gɛlɛnw, minnu bɛ taa teliya la, ni sɛbɛnniw ɲɛfɔlen don (i n’a fɔ farikoloɲɛnajɛw walima walew tugu-tugu ɲɔgɔn kɔ) olu bɛ bitiriw de wajibiya minnu ka bon kosɛbɛ walasa ka jogoɲumanya hakɛ kelen min bɛ ye, o mara. I ka kɔnɔkow gɛlɛya faamuyali nafa ka bon kosɛbɛ bitrate tilatilali ɲuman na.
Plateforme Optimisation (Baarakɛcogo ɲuman).
Jatebɔyɔrɔ kelen-kelen bɛɛ bɛ baarakɛcogo pibiliki kɛrɛnkɛrɛnnenw ni compression fɛɛrɛw waleya. YouTube, Twitch, Facebook ani baarakɛminɛn wɛrɛw kelen-kelen bɛɛ b’u ka transcoding ni delivery fɛɛrɛw waleya, o kɔrɔ ye ko source bitrates ɲumanw bɛ danfara ka kɛɲɛ ni plateforme ye. Misali la, YouTube ka ladilikan min bɛ 4K kɔnɔkow kan (35-45 Mbps 30fps kama) o ni Twitch ka bitrate hakɛ min bɛ Se ka Kɛ 8 Mbps ye, o tɛ kelen ye. An ka jatebɔlan bɛ ladilikanw di minnu bɛ kɛ plateforme kɛrɛnkɛrɛnnenw kan walasa i ka kunnafoniw bɛ baara kɛ ka ɲɛ i ka baara sugandilen kan.
Encoding codec fana bɛ nɔba bila bitrate wajibiyalen na. Kodeki kuraw i n’a fɔ H.265/HEVC ani AV1 bɛ se ka jogo kelen sɔrɔ bitiritiw la minnu ka dɔgɔ kosɛbɛ ni i y’a suma ni H.264 ye. Misali la, a ka c’a la, H.265 bɛ kunnafoniw dɔgɔya 40-50% ɲɔgɔn na ka tɛmɛ H.264 kan yecogo kelen na. Ni i bɛ plateformew laɲini minnu bɛ o codec kɔrɔlenw dɛmɛ, i bɛ se ka jogo ɲuman mara k’a sɔrɔ i bɛ dɔ bɔ kosɛbɛ file hakɛ ni bandwidth wajibiyalenw na.
Siniko minnu bɛna kɛ Bitrate Optimization (Bitrate Optimisation) la
Kunnafonidila fɛɛrɛbɔ siratigɛ bɛ ka taa ɲɛ ni masin kalanni-kodɔnni ye min bɛ ka bonya sɔrɔ. Nin fɛɛrɛ minnu bɛ tali kɛ AI la, olu bɛ kɔnɔkow cogoyaw sɛgɛsɛgɛ walasa ka degun fɛɛrɛ ɲumanw waleya cogo la min bɛ se ka kɛ. Kɔnɔkow-adaptif encoding bɛ sira di hali bitiriti baarakɛcogo ɲuman ma ni kunnafoni caman tila-tila ye ɲɛnajɛ gɛlɛnw na ani ka dɔgɔya ka di frame nɔgɔmanw ma, o bɛ na ni jogo ye min bɛ ye cogo basigilen na ni bitrate moyenne dɔgɔman ye.
Kɔnɔkow dabɔbagaw fɛ, bitrate (bitrate) ɲuman sɔrɔli tɛ tuguni ka tugu ladilikanw kɔ minnu bɛ kɛ ni mɔgɔw bɛɛ ye, nka k’i ka kɔnɔkow, laɲini-yɔrɔw, ani lamɛnnikɛlaw ka gɛlɛyaw wajibiyalen kɛrɛnkɛrɛnnenw faamuya. An ka Media Bitrate Calculator bɛ nin latigɛ gɛlɛn in nɔgɔya, a kɛtɔ ka ladilikanw di minnu bɛ kɛ ka kɛɲɛ ni i yɛrɛ sago ye, minnu bɔra dɔnniya siratigɛ la, ka da i ka paramɛtiri kɛrɛnkɛrɛnnenw kan.
Ni ɛntɛrinɛti teliya bɛ ka bonya diɲɛ kɔnɔ, bitrate (bitrate) minnu ka bon, olu bɛ sɔrɔ ka caya ka ɲɛsin streaming (fɔlikan) ma. Nka, baarakɛcogo ɲuman bɛ to ka kɛ fɛnba ye, kɛrɛnkɛrɛnnenya la mobili lajɛbagaw fɛ ani mara minnu ka bandwidth dan ye. Kɔnɔkow fɛɛrɛ minnu bɛ ɲɛtaa sɔrɔ kosɛbɛ, olu bɛ jogoɲumanya wajibiyalenw ni sɔrɔko jateminɛw bɛn ɲɔgɔn ma, k’a lajɛ ko i ka kɔnɔkow bɛ se jamaba ma k’a sɔrɔ i ma fɛn yetaw nɔ bila.