Upload your MPG file and set Quality to High Quality in the conversion options. That re-encodes the video at the highest quality setting (CRF 18 for H.264 and VP9 output), which keeps the most detail at the cost of a larger file. The default, Balanced, uses the standard setting. The MP4 output gets a codec its container supports: H.264 for MP4, MOV and MKV, VP9 for WebM. Ihenhọrọ ndị ahụ bụ MPEG-1 mọọbụ MPEG-2 vidio na MP2 ụda; muxing na ngwe GOP dị ka.mpeg faịlụ. N'ebe ọ bụla MP4 n'oké ọhịa bụ H.264 vidiyo na AAC audio; container na-echekwa HEVC, AV1 na VP9.
MPG fótúọ̀tụ̀ m na-egosìlà ngwè n'ụdị ntụgharị - ọ ga-émè ka ọ̀ ga-émè n'MP4?
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Ee. MPG ihenhọrọ na-enwekarị interlaced, n'ihi na ọbjektị a na-abịa site n'omume nke nbudata na DVD oge, na onyeọtụgharị a enweghị nhọrọ deinterlaced, ya mere, combing na-ebido na MP4. Ọ bụrụ na ọ bụ ihe dị mkpa, deinterlaced MPG mbụ na desktọọpụ ngwaọrụ dị ka HandBrake mọọbụ ffmpeg (yadiff filter). MPG bụ MPEG program stream dị ka.mpeg - ọ̀gụ̀ọ̀gụ̀ atọ nke nkwalite bụ DOS-era truncation, ọ bụghị ụdị dị iche iche.
M ga-enwe ike ịgbakwunye isiokwu ndị a ga-ahọrọ mgbe faịlụ ahụ bụ MP4?
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Ee. MPG enweghị sọftụwia-subtitles n'okporo ụzọ a ga-eji, ya mere subtitles maka MPG ngwe ga-ebido n'ime inyogo mọọbụ eburu ya dịka faịlụ sidecar dị iche iche. MP4 na-eburu subtitles dịka n'okporo ụzọ ha na-ehọrọ, yabụ mgbe gbanwere ị nwere ike ịgbakwunye SRT n'okporo ụzọ onyenlereanya nwere ike ịgbanwe na, gbanwee ma ọ bụ weghachi style.
MPG m nwere ụda-ọsọ ndị dị iche iche - ọ ga-adịru ha niile n'ime MP4?
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Ọ dịghị. Ntụgharị na-echekwa otu ụda-tráìk, nke nwere ọtụtụ chaịnaịlụ (n'ozuzu ya bụ main mix), nakwa wepụ ndị ọzọ; enweghị nhazi iji họrọ nke ọzọ. Iji chekwaa tráìk ọzọ, remúkọọ MPG na tráìk ahụ n'oge mbụ (VLC mọọbụ ffmpeg nwere ike ime nke a), mgbe ahụ gbanwee ya. MPG bụ mmelite DVD-ọrụsaịtị, kamkọọdìò ndị ochie nakwa ihenhọrọ n'igosi ihenhọrọ ndị ahụ, ya mere ọ na-adịkwa mkpa maka ndị pipeline ndị ahụ. MP4 na-akwado naanị otu n'ime usoroiheomume subtitle nke a na-ahụkarị (mov_text), nakwa ọbụna ọdachi ọdachi ọbụla n'ebe n'èzí desktọ́ọ̀pụ̀ ndị na-egwupụta.
Ọ ga-agbarịrị MP4 na nchọgharị mgbe MPG agaghị arụ ọrụ?
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Ee, na nke ahụ bụ n'ozuzu ya ihe mere maka ntụgharị. MPG ejikọtara na webụsaịtị na-egosi ọkpụkpọ ahụ ma ọ bụ na-egbochi ibudata, n'ihi na ọbịbịa na-ezigaghị dekoder maka ya. MP4 na-egwu n'ime n'ime site na HTML5 vidio elementị na-enweghị plugin nakwa n'enweghị usoroiheomume n'ime. MP4 bụ ihe na-eme ka ọ dị mma na-eme ka ọ dị mma - ekwentị niile, brawzer, console, editor na Smart TV e wuru na afọ gara aga na-egwu ya na-enweghị sọftụwia ọzọ.
Ọ bara uru ịgbanwe MPG replays ochie ka MP4?
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Maka ihe ọbụla ị na-eme ka ị na-echekwa, ee. MPG bụ nke nsụgharị ochie nke vidio tùọ́lụ̀ ná sáùtọ̀ọ̀lụ̀ nke na-agụ ya na-apụ n'ime ekwentị, nchọgharị nakwa sistem ndị na-arụ ọrụ. Ịkpụga ihe oyiyi ahụ na MP4 ugbu a, mgbe dekóọ̀dọ̀ dị ọcha ka nọ, bụ n'etiti nchekwa ị ga-emepe n'ime afọ iri na otu ị ga-emeghị. MPG na-ewere MPEG-2 ọbụla n'ụdị nkwụsị - bitrate dị njọ, n'etiti, enweghị n'okpuru-afụfụ - nakwa n'ụdị nkwụsị nke abụọ maka otu ụdị.
Vidéọ̀kọ́ètị̀ ole ka ọ̀pụ̀pụ̀ MP4 na-eji?
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It depends on the MP4 container. MP4, MOV and MKV output use H.264, which plays on practically every phone, browser and TV. WebM output uses VP9. AVI, WMV and MPEG output use the older codecs those formats were designed for. MP4 bụ ISO/IEC 14496-14, standardized na 2001 na-abịa site na otu QuickTime igbe ịdị MOV na-eji.
Ọ ga-adị ndụ n'ịgbanwe ụda m site na MPG gaa na MP4?
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Yes, the main audio track comes through, re-encoded to a codec the MP4 container plays, for example AAC in MP4 and MOV or Opus in WebM. Most conversions keep only that one track (the one with the most channels), so alternate languages and commentary are dropped. MP4 to MOV, and AVI, WMV, MPEG, FLV, VOB or M4V to MKV, keep every audio track.
M ga-echekwa fréèmùraịt mbụ mgbe m na-ebugharị MPG ka MP4?
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Ee. A na-echekwa fréèmù ọnụọgụgụ ma ọ bụrụ na ịgbanwee ya: 24 fps MPG na-adị 24 fps na MP4. Nhazi ọnụọgụgụ fréèmù nwere ike ịgbanwee ka 60, 30 mọọbụ 24 fps. O gbanwere ọnụọgụgụ naanị; ọ gaghị agbanwe vidio mọọbụ wepụ 3:2 pulldown.
Olee otú faịlụụhara ga-agbanwe site na MPG gaa MP4?
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Ọ dabere na ihe na-eme na video. MKV ka MP4 ma ọ bụ MOV na difọ́ọ̀ltụ̀ settings dezie video stream unchanged, ya mere na size na-adị nso na isi. Ọtụtụ ndị ọzọ abụọ re-encode ya: a elu-bitrate MPG na-emekarị na-abịa n'ihu obere, mgbe a na-adịbeghị anya na-akpụzi otu nwere ike na-eto. Smaller File n'okpuru Quality na-enye na-abaghị uru output, na H.265 na Codec setting (MP4, MOV na MKV) bụ na-emekarị obere karịa H.264 na mma dị ka ma na-egwu na ngwaọrụ ole na ole.
Faịlụ MP4 ga-egwuri na iPhone, Android, na Smart TVs?
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MP4 na H.264 na-egwu na-arụ ọrụ na ekwentị niile, nchọgharị na TV. MOV na H.264 na-egwu na Apple ngwaọrụ na TVs kasị ma ọ bụghị na niile ochie Android ekwentị. MKV chọrọ a ngwa dị ka VLC na iOS, na WebM bụ na ụlọ na nchọgharị. Enweghị ngwaọrụ preset na peeji a, ya mere họrọ ihe nlereanya gị ngwaọrụ na-akwado.
Oge ole ka ọ ga-ewe iji gbanwee 1-ọnụọgụgụ nke MPG vidio gaa na MP4?
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Enweghị oge akọwapụtara: ọ dabere na ogologo, nghọta na ntọala ntọala. Ntụgharị na-arụ ọrụ na CPUs nke sava anyị na encoders sọftụwia; enweghị GPU acceleration. MKV ka MP4 ma ọ bụ MOV na ntọala difọ́ọ̀ltụ̀ na-edebata vidiyo stream na bụ ngwa ngwa. A re-encode ka H.264 na-ewe ogologo oge, na WebM (VP9) bụ ihe nchọgharị dị n'ime, ugboro ole na ole dị n'ime karịa H.264 na nyocha anyị.
