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"
]
}
]