{"id":15794,"date":"2021-12-18T19:21:27","date_gmt":"2021-12-18T10:21:27","guid":{"rendered":"http:\/\/www.code-magagine.com\/?p=15794"},"modified":"2023-05-28T08:50:15","modified_gmt":"2023-05-27T23:50:15","slug":"%e3%80%90%e5%8b%95%e7%94%bb%e3%80%91%e3%80%8c%e5%8b%95%e7%94%bb%e5%bd%a2%e5%bc%8f%e3%80%8d%e3%81%a8%e3%80%8c%e3%82%b3%e3%83%bc%e3%83%87%e3%83%83%e3%82%af%e3%80%8d%e3%81%ab%e3%81%a4%e3%81%84%e3%81%a6","status":"publish","type":"post","link":"http:\/\/www.code-magagine.com\/?p=15794","title":{"rendered":"\u3010\u30de\u30eb\u30c1\u30e1\u30c7\u30a3\u30a2\u3011\u300c\u30b3\u30fc\u30c7\u30c3\u30af\u300d\u3068\u300c\u52d5\u753b\u5f62\u5f0f\u300d\u306b\u3064\u3044\u3066"},"content":{"rendered":"

\u30b3\u30fc\u30c7\u30c3\u30af\u3068\u306f\uff1f<\/h2>\n

\u3069\u3046\u3044\u3046\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u4f7f\u3063\u3066\u5727\u7e2e\u30fb\u5909\u63db\uff08\u30a8\u30f3\u30b3\u30fc\u30c9\uff09\u3084\u5fa9\u5143\uff08\u30c7\u30b3\u30fc\u30c9\uff09\u3092\u3059\u308b\u304b<\/p>\n

\u306a\u305c\u5727\u7e2e\u30fb\u5909\u63db\uff08\u30a8\u30f3\u30b3\u30fc\u30c9\uff09\u304c\u5fc5\u8981\u304b\uff1f<\/h3>\n

\u52d5\u753b\u306f\u300c\u52d5\u753b\u30c7\u30fc\u30bf\u300d\u3068\u300c\u97f3\u58f0\u30c7\u30fc\u30bf\u300d\u304b\u3089\u3067\u304d\u3066\u3044\u3066\u5bb9\u91cf\u304c\u5927\u304d\u3044\u306e\u3067\u3001\u30b5\u30a4\u30ba\u3092\u5c0f\u3055\u304f\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n

\u305f\u3060\u3001\u5727\u7e2e\u3057\u305f\u307e\u307e\u3060\u3068\u518d\u751f\u304c\u3067\u304d\u306a\u3044\u306e\u3067\u5143\u306b\u623b\u3059\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u305d\u308c\u3092\u30c7\u30b3\u30fc\u30c9\u3068\u547c\u3073\u307e\u3059\u3002<\/p>\n

\u7a2e\u985e<\/h3>\n

\u300c\u753b\u8cea\u3092\u7dba\u9e97\u306b\u3057\u305f\u3044\u300d\u3060\u3068\u304b\u3001\u300c\u5bb9\u91cf\u3092\u5c0f\u3055\u304f\u3057\u305f\u3044\u300d\u3060\u3068\u304b\u306e\u7528\u9014\u304c\u3042\u308b\u306e\u3067\u30b3\u30fc\u30c7\u30c3\u30af\u306b\u306f\u305f\u304f\u3055\u3093\u306e\u7a2e\u985e\u304c\u3042\u308b\u3002\u30b3\u30fc\u30c7\u30c3\u30af\u306f\u73fe\u5728\u3082\u5897\u3048\u7d9a\u3051\u3066\u3044\u308b\u306e\u3067\u3069\u308c\u3092\u4f7f\u3046\u304b\u306f\u8abf\u67fb\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u3002<\/p>\n

\u4ee3\u8868\u7684\u306a\u52d5\u753b\u30b3\u30fc\u30c7\u30c3\u30af<\/h4>\n

MPEG-4\u30fb MPEG-1\u30fbMPEG-2\u30fb Xvid\u30fbDivx\u30fbH.263\u30fbH.264 \u3001VP8\u3001VP9\u306a\u3069<\/p>\n

VP8<\/h5>\n

\u3042\u307e\u308a\u666e\u53ca\u3057\u306a\u304b\u3063\u305f\u30b3\u30fc\u30c7\u30c3\u30af\u3002\u753b\u8cea\u306f\u5168\u4f53\u7684\u306b\u3056\u3089\u3056\u3089\u306b\u306a\u3063\u3066\u3057\u307e\u3046\u3002WebRTC\u306a\u3089\u5b9f\u88c5\u306f\u5fc5\u9808\u3002<\/strong><\/span><\/p>\n

VP9<\/h5>\n

\u304b\u306a\u308a\u512a\u79c0\u3002\u6700\u8fd1\u306f\u3001youtube\u3084\u30cb\u30b3\u30cb\u30b3\u306a\u3069\u306fH264\u304b\u3089\u3053\u308c\u306b\u7f6e\u304d\u63db\u308f\u3063\u3066\u304d\u3066\u3044\u308b\u3002H.264\u3088\u308a\u306f\u826f\u3044\u3002Safari\u306f15\u3067\u5bfe\u5fdc\u3057\u305f\u3002<\/p>\n

H264(MPEG-4 AVC)<\/h5>\n

\u305d\u3053\u305d\u3053\u8352\u3044\u3002MPEG-4\u306e\u9032\u5316\u7248\u3002\u5727\u7e2e\u7387\u306fMPEG-2\u306e2\u500d\u3067\u3001\u30d6\u30e9\u30a6\u30b6\u3001\u30b9\u30de\u30db\u306a\u3069\u3042\u3089\u3086\u308b\u5a92\u4f53\u3067\u5229\u7528\u3055\u308c\u3066\u3044\u308b\u3002WebRTC\u306a\u3089\u5b9f\u88c5\u306f\u5fc5\u9808\u3002<\/strong><\/span><\/p>\n

H264UC<\/h5>\n

Skype\u7528<\/p>\n

\u4ee3\u8868\u7684\u306a\u97f3\u58f0\u30b3\u30fc\u30c7\u30c3\u30af<\/h4>\n

MP3\u30fbAAC\u30fbAC-3\u30fbFLAC\u30fbLPCM\u30fbWMA\u3001Opus\u3000\u306a\u3069<\/p>\n

Opus<\/h5>\n

\u3053\u308c\u304c\u6c7a\u5b9a\u7248<\/p>\n

\u52d5\u753b\u5f62\u5f0f<\/h2>\n

\u30b3\u30fc\u30c7\u30c3\u30af\u3068\u3001\u52d5\u753b\u5f62\u5f0f\u306f\u5225\u7269<\/strong><\/span>\u3067\u3059\u3002\u52d5\u753b\u5f62\u5f0f\u306f\u30b3\u30f3\u30c6\u30ca\u306a\u3069\u3068\u3082\u547c\u3070\u308c\u307e\u3059\u3002\u52d5\u753b\u5f62\u5f0f\u306e\u4e2d\u306b\u52d5\u753b\u30b3\u30fc\u30c7\u30c3\u30af\u3068\u97f3\u58f0\u30b3\u30fc\u30c7\u30c3\u30af\u3092\u542b\u3081\u308b\u3053\u3068\u3067\u52d5\u753b\u3068\u3057\u3066\u518d\u751f\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n

\u52d5\u753b\u5f62\u5f0f\u306e\u4e2d\u306b\u542b\u3081\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u52d5\u753b\u30b3\u30fc\u30c7\u30c3\u30af\u3068\u97f3\u58f0\u30b3\u30fc\u30c7\u30c3\u30af\u306f\u305d\u308c\u305e\u308c\u6c7a\u307e\u3063\u3066\u3044\u3066\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u5bfe\u5fdc\u8868\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n\n\n\n\n\n
\u30b3\u30f3\u30c6\u30ca(\u52d5\u753b\u5f62\u5f0f\uff09<\/th>\n\u52d5\u753b\u30b3\u30fc\u30c7\u30c3\u30af<\/th>\n\u97f3\u58f0\u30b3\u30fc\u30c7\u30c3\u30af<\/th>\n<\/tr>\n
mp4<\/td>\nMPEG-4\u3001H.263\u3001H.264<\/td>\nMP3\u3001AC3\u3001AAC<\/td>\n<\/tr>\n
avi<\/td>\nMPEG-1\u3001MPEG-2\u3001H.263\u3001H.264<\/td>\nMP3\u3001AAC \u3001FLAC<\/td>\n<\/tr>\n
mov<\/td>\nH.263\u3001H.264<\/td>\nMP3\u3001AAC \u3001FLAC<\/td>\n<\/tr>\n
mpeg<\/td>\nMPEG-1\u3001MPEG-2<\/td>\nAC3\u3001LPCM<\/td>\n<\/tr>\n
flv<\/td>\nH.263\u3001H.264<\/td>\nMP3\u3001PCM\u3001AAC<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

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