Ngaupload file WebM anjeun sarta konvertor bakal ngajalankeun CRF-basa re-encode targeting visually-lossless MPG output (CRF 18 sacara pigura, nilai handap = file leuwih gede / kualitas luhur). Codec dipilih pikeun cocog MPG container — H.264 pikeun MP4 kompat lega, H.265 pikeun MKV ukuran-efisien, VP9 pikeun WebM, AV1 pikeun pipa anyar. WebM diciptakeun ku tujuan pikeun ngawengku video VP8 atanapi VP9 (AV1 langkung anyar) sareng Vorbis atanapi Opus audio, sareng henteu aya anu sanés. MPEG-1, MPEG-2, MPEG-4, MPEG-5, MPEG-7, MPEG-8, MPEG-9, MPEG-10, MPEG-20, MPEG-21, MPEG-22, MPEG-24, MPEG-40, MPEG-41, MPEG-42, MPEG-44, MPEG-45, MPEG-46, MPEG-47, MPEG-49, MPEG-5, MPEG-6, MPEG-7, MPEG-8, MPEG-10, MPEG-11, MPEG-12, MPEG-13, MPEG-14, MPEG-15, MPEG-17, MPEG-18, MPEG-20, MPEG-21, MPEG-22, MPEG-24, MPEG-24, MPEG-22, MPEG-24, MPEG-2