Tentang File MP4

MP4 (MP4 Video · Format Video)

Dirilis 2003 Oleh MPEG (ISO/IEC JTC 1)

MP4 Video (.mp4) adalah format file standar yang didukung penuh oleh KaijuConverter untuk pertukaran data, pengarsipan, dan konversi lintas platform.

Keluarga

Video Files

Ekstensi

.mp4

Tipe MIME

video/mp4

Dapat Digunakan Sebagai

Input Output

Kisahnya

BAGAIMANA MP4
TERCIPTA.

1991

2003

MP4 — formally MPEG-4 Part 14 — shipped in 2003 as the standard container for MPEG-4 media. It was based on Apple's QuickTime File Format from 1991, which the MPEG committee adopted almost wholesale. The format's flexibility (it can carry any combination of video, audio, subtitles, chapters, and metadata) plus near-universal browser and hardware support made it the default video container of the modern internet.

The vast majority of MP4 files today carry H.264 (AVC) video and AAC audio — a combination chosen for its balance between compression efficiency, decoding complexity, and royalty cost. More recent variants use H.265 (HEVC) or AV1 for better compression, with H.264 retained as the fallback for compatibility.

FAKTA UNIK &
TRIVIA.

MP4 is a container — the same .mp4 file could contain H.264, H.265, AV1, or even obscure codecs.

The "moov atom" at the start of an MP4 file is an index of every frame — moving it to the end breaks streaming.

Apple's QuickTime .mov and MP4 share the same underlying ISO Base Media File Format.

The Netflix and YouTube apps on your TV almost certainly deliver H.264-in-MP4 most of the time.

An MP4 file can contain multiple audio tracks, multiple subtitle tracks, and embedded chapters — DVDs in a box.

KEUNGGULAN &
KETERBATASAN.

Keunggulan

Universal playback — every browser, phone, TV, game console, and editing suite reads MP4.
Supports modern codecs (H.264, H.265, AV1) with no container changes.
Progressive streaming works with the "moov atom" at the start of the file.
Carries subtitles, chapters, multiple audio tracks, and embedded metadata.
ISO-standardized (ISO/IEC 14496-14) and patent-licensable via MPEG LA.

Keterbatasan

Codec licensing (H.264, H.265) carries royalty costs for commercial use.
Streaming requires the moov atom at the start — a misplaced atom breaks web playback.
Not ideal for lossless or professional editing workflows (use ProRes or DNxHD instead).
Editing an MP4 almost always re-encodes, degrading quality.

Ukuran & Bobot Umum

Smartphone video (1080p, 1 min)

60–120 MB

4K video (1 min, H.265)

200–400 MB

Streamed movie (90 min, H.264)

1–4 GB

Social clip (15s, H.264, 720p)

3–8 MB

Spesifikasi Teknis

MIME type: video/mp4
Container: ISO Base Media File Format (ISO/IEC 14496-12)
Common video codecs: H.264 (AVC), H.265 (HEVC), AV1, VP9
Common audio codecs: AAC, MP3, FLAC, Opus
Max file size: Practically ~16 TB; 2^63 bytes theoretical
Streaming: Supported with faststart (moov atom at front)

KONVERSI DARI
MP4

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KONVERSI KE
MP4

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Kasus Penggunaan Umum

Web video, streaming, social media uploads, mobile video playback.