AV2, ke thua AV1, da hoan tat - chua trinh duyet nao mo duoc
Alliance for Open Media hoan tat dac ta codec video AV2 vao thang 5 nam 2026, hua hen file nho hon khoang 30 phan tram so voi AV1 o cung chat luong. Chua trinh duyet, dien thoai hay thiet bi streaming nao giai ma duoc AV2, nen khong co gi thay doi voi video ban chuyen doi hoac tai len hom nay - hay tiep tuc dung AV1, H.264 hoac VP9.
Last reviewed: 2026-07-08
Chuyen gi da xay ra
AV1, codec mien phi ban quyen ma da so cong cu chuyen doi video hien nay huong toi, phat hanh nam 2018. AOMedia - voi cac thanh vien gom Google, Apple, Microsoft, Netflix va cac nha san xuat chip lon - bat dau lam AV2, ke thua cua AV1, tu nam 2020, dat muc tieu hoan tat nam 2025. Dac ta dat phien ban 1.0.0 vao ngay 28 thang 5 nam 2026, cham khoang sau thang, va thong bao phat hanh chinh thuc cua AOMedia ra mat ngay 9 thang 6 nam 2026.
AOMedia coi day la diem khoi dau, khong phai diem ket: dac ta da xong, nhung bo ma hoa, bo giai ma, kiem thu tuong thich va tang toc phan cung de dua AV2 den nguoi xem van con phai xay dung. Chinh AV1 cung mat khoang hai nam sau khi phat hanh nam 2018 truoc khi viec giai ma tro nen pho bien tren cac trinh duyet va thiet bi.
| Codec | Phat hanh | Muc tiet kiem kich thuoc file dien hinh | Ho tro trinh duyet hom nay |
|---|---|---|---|
| AV1 | 2018 | Co so de so sanh | Chrome, Firefox, Edge, Safari 17+ |
| AV2 | Dac ta hoan tat thang 5 nam 2026 | Khoang 30 phan tram nho hon AV1, len den khoang 40 phan tram cho quay man hinh va HDR | Chua co |
Giai ma file AV2 cung can nhieu nang luc tinh toan hon ro rang so voi AV1 - cac ky su phan mem tham chieu uoc tinh gap hai lan ruoi den nam lan cong viec, va phan mem do van dang duoc toi uu chu chua san sang cho san xuat. VideoLAN da phat hanh mot bo giai ma nguon mo som goi la dav2d, va cac nha thiet ke chip Allegro DVT, Chips&Media va VeriSilicon da cong bo phan cung giai ma AV2, nhung chua co dien thoai, laptop hay TV nao dang ban co san.
Tai sao dieu nay quan trong voi file video hang ngay
AV1 co duoc vi tri cua no vi mien phi su dung va choi duoc tren moi trinh duyet lon khong can plugin - do la ly do cong cu chuyen doi video dung no lam mac dinh. AV2 giu loi hua mien phi ban quyen do giua cac thanh vien AOMedia, va phan nen them quan trong nhat voi footage 4K hoac HDR lon, noi file nho hon nghia la tai len nhanh hon va dung it dung luong luu tru hon. Mot diem can luu y: Sisvel, cong ty cap phep bang sang che khong bi rang buoc boi cam ket cua AOMedia, du dinh lap mot pool bang sang che cho AV2 giong nhu da lam voi AV1 - dieu nay co the cuoi cung tinh phi cac nha san xuat thiet bi ngoai thanh vien AOMedia, du codec van duoc quang cao la mien phi ban quyen.
Can lam gi voi file cua ban ngay bay gio
Ke hoach trong luc AV2 chua co ho tro thiet bi nao:
- Tiep tuc chuyen doi sang cac dinh dang da choi duoc moi noi. Bo chuyen doi video van huong toi AV1, H.264 va VP9 - thong bao AV2 khong thay doi gi ve nhung gi ban tai len hom nay.
- Chon codec va container theo thu choi duoc voi khan gia cua ban, khong theo thu moi nhat. Huong dan MP4 doi WebM cho web de cap den su danh doi nay cho cac dinh dang ban co the dung ngay bay gio.
- Theo doi flag trinh duyet, khong phai thong cao bao chi. AV2 se an toan de thu nghiem theo cach giong JPEG XL: o sau mot flag thu nghiem trong ban build trinh duyet. Mot dac ta hoan tat la thong bao truoc, khong phai dau hieu de thay doi quy trinh lam viec nao luc nay.
- Khong ma hoa lai footage hien co sang AV2. Khi chua co bo giai ma phan cung nao duoc ban ra va viec giai ma van doi hoi gap nhieu lan so voi AV1, chuyen doi kho luu tru luc nay chi tao ra file it thiet bi mo duoc hon. Xem lai khi ho tro giai ma thuc su xuat hien, khoang tu nam 2028.
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