JSON

動画ファイル形式 - JSON

動画ファイル形式は、デジタル映像と音声をコンテナに格納するための規格です。MP4、AVI、MKV、MOV、WebMなど様々な形式があり、それぞれ圧縮率、互換性、機能性に特徴があります。用途に応じて最適な形式を選択することで、画質、ファイルサイズ、再生環境のバランスを最適化できます。

動画ファイル形式 MP4 MKV AVI MOV WebM コーデックコンテナ

[
  {
    "code": "1",
    "slug": "mp4",
    "name": "MP4",
    "description": "最も広く使われる動画ファイル形式です。",
    "extension": ".mp4",
    "developer": "MPEG (Moving Picture Experts Group)",
    "releaseYear": 2001,
    "license": "Patent-encumbered",
    "supportedCodecs": [
      "H.264",
      "H.265/HEVC",
      "AV1",
      "MPEG-4"
    ],
    "compatibility": "Excellent",
    "bestFor": [
      "YouTube uploads",
      "Social media",
      "Mobile playback",
      "Streaming"
    ]
  },
  {
    "code": "2",
    "slug": "avi",
    "name": "AVI",
    "description": "Microsoftが開発したレガシーな動画ファイル形式です。",
    "extension": ".avi",
    "developer": "Microsoft",
    "releaseYear": 1992,
    "license": "Proprietary",
    "supportedCodecs": [
      "DivX",
      "Xvid",
      "H.264",
      "H.265",
      "MPEG-4"
    ],
    "compatibility": "Good (Windows)",
    "bestFor": [
      "Legacy compatibility",
      "Uncompressed video",
      "Windows environments"
    ]
  },
  {
    "code": "3",
    "slug": "mkv",
    "name": "MKV",
    "description": "オープンソースの高機能動画コンテナ形式です。",
    "extension": ".mkv",
    "developer": "Matroska/CoreCodec",
    "releaseYear": 2002,
    "license": "Open-source",
    "supportedCodecs": [
      "H.264",
      "H.265",
      "VP8",
      "VP9",
      "AV1",
      "DivX",
      "Xvid"
    ],
    "compatibility": "Good (PC-focused)",
    "bestFor": [
      "Media archiving",
      "Multi-language content",
      "Blu-ray backup",
      "Anime storage"
    ]
  },
  {
    "code": "4",
    "slug": "mov",
    "name": "MOV",
    "description": "Appleが開発したプロフェッショナル向け動画形式です。",
    "extension": ".mov",
    "developer": "Apple",
    "releaseYear": 1991,
    "license": "Proprietary",
    "supportedCodecs": [
      "Apple ProRes",
      "H.264",
      "H.265",
      "MPEG-4"
    ],
    "compatibility": "Best on Apple devices",
    "bestFor": [
      "Professional editing",
      "Mac workflows",
      "High-quality preservation",
      "Post-production"
    ]
  },
  {
    "code": "5",
    "slug": "webm",
    "name": "WebM",
    "description": "Web向けに最適化されたオープンソース動画形式です。",
    "extension": ".webm",
    "developer": "Google",
    "releaseYear": 2010,
    "license": "Royalty-free",
    "supportedCodecs": [
      "VP8",
      "VP9",
      "AV1",
      "Vorbis",
      "Opus"
    ],
    "compatibility": "Modern browsers only",
    "bestFor": [
      "Web embedding",
      "HTML5 video",
      "Streaming",
      "Bandwidth-limited scenarios"
    ]
  }
]