{"id":120948,"date":"2024-03-24T00:40:00","date_gmt":"2024-03-23T15:40:00","guid":{"rendered":"https:\/\/www.silicloud.com\/ja\/blog\/delphi-%e3%81%8c-ffmpeg-%e3%82%92%e3%81%a9%e3%81%ae%e3%82%88%e3%81%86%e3%81%ab%e5%91%bc%e3%81%b3%e5%87%ba%e3%81%99%e3%81%8b\/"},"modified":"2024-04-04T01:50:39","modified_gmt":"2024-04-03T16:50:39","slug":"delphi-%e3%81%8c-ffmpeg-%e3%82%92%e3%81%a9%e3%81%ae%e3%82%88%e3%81%86%e3%81%ab%e5%91%bc%e3%81%b3%e5%87%ba%e3%81%99%e3%81%8b","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/ja\/blog\/delphi-%e3%81%8c-ffmpeg-%e3%82%92%e3%81%a9%e3%81%ae%e3%82%88%e3%81%86%e3%81%ab%e5%91%bc%e3%81%b3%e5%87%ba%e3%81%99%e3%81%8b\/","title":{"rendered":"delphi \u304c FFMPEG \u3092\u3069\u306e\u3088\u3046\u306b\u547c\u3073\u51fa\u3059\u304b"},"content":{"rendered":"

FFmpeg\u3092Delphi\u304b\u3089\u5229\u7528\u3059\u308b\u306b\u306f\u3001FFmpeg\u30e9\u30a4\u30d6\u30e9\u30ea\u306eDLL\u3092\u4f7f\u7528\u3057\u3066\u3001Delphi\u306e\u5916\u90e8\u95a2\u6570\u3092\u7528\u3044\u3066\u30e9\u30a4\u30d6\u30e9\u30ea\u3092\u547c\u3073\u51fa\u3059\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n

\u57fa\u672c\u7684\u306a\u30b9\u30c6\u30c3\u30d7\u3092\u3044\u304f\u3064\u304b\u3054\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n

    \n
  1. FFmpeg\u3092\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3057\u3066\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3059\u308b: FFmpeg\u306e\u6700\u65b0\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u306fFFmpeg\u306e\u516c\u5f0f\u30b5\u30a4\u30c8\uff08https:\/\/ffmpeg.org\/\uff09\u304b\u3089\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3067\u304d\u307e\u3059\u3002<\/li>\n
  2. FFmpeg\u30e9\u30a4\u30d6\u30e9\u30ea\u306e\u30a4\u30f3\u30dd\u30fc\u30c8:FFmpeg\u306e\u5171\u6709\u30e9\u30a4\u30d6\u30e9\u30ea\u3092Delphi\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306b\u30a4\u30f3\u30dd\u30fc\u30c8\u3057\u307e\u3059\u3002DLL\u30d5\u30a1\u30a4\u30eb\u3092\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u30d5\u30a9\u30eb\u30c0\u306b\u30b3\u30d4\u30fc\u3057\u3001Delphi\u3067[\u30d7\u30ed\u30b8\u30a7\u30af\u30c8] -> [\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306b\u8ffd\u52a0] -> [\u5916\u90e8\u30d5\u30a1\u30a4\u30eb]\u3092\u9078\u629e\u3057\u3066DLL\u30d5\u30a1\u30a4\u30eb\u3092\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306b\u8ffd\u52a0\u3057\u307e\u3059\u3002<\/li>\n
  3. Delphi\u3067\u65b0\u3057\u3044\u30e6\u30cb\u30c3\u30c8\u3092\u4f5c\u6210\u3057\u307e\u3059\u3002\u3053\u306e\u30e6\u30cb\u30c3\u30c8\u3067\u306f FFmpeg \u306e\u95a2\u6570\u3092\u7ba1\u7406\u3059\u308b\u95a2\u6570\u3092\u4f5c\u6210\u3057\u307e\u3059\u3002\u30e6\u30cb\u30c3\u30c8\u5185\u3067 FFmpeg \u30e9\u30a4\u30d6\u30e9\u30ea\u306e\u95a2\u6570\u3092\u547c\u3073\u51fa\u3059\u305f\u3081\u306e\u5916\u90e8\u95a2\u6570\u3092\u5ba3\u8a00\u3057\u307e\u3059\u3002<\/li>\n<\/ol>\n

    \u300cDelphi\u300d\u3067\u300cFFmpegUtils.pas\u300d\u3068\u3044\u3046\u30e6\u30cb\u30c3\u30c8\u3092\u4f5c\u6210\u3057\u3001\u305d\u306e\u4e2d\u306b\u6b21\u306e\u95a2\u6570\u3092\u5ba3\u8a00\u3067\u304d\u307e\u3059\u3002<\/p>\n

    unit<\/span> FFmpegUtils;\r\ninterface<\/span>\r\ntype<\/span>\r\nPAVFormatContext = Pointer;\r\nPAVCodecContext = Pointer;\r\nPAVFrame = Pointer;\r\nPAVPacket = Pointer;\r\nprocedure<\/span> av_register_all<\/span>;<\/span> cdecl<\/span>; external<\/span> 'avformat.dll'<\/span>;\r\nfunction<\/span> avformat_open_input<\/span>(var<\/span> ps: PAVFormatContext; url: PAnsiChar; fmt: PAVInputFormat; options: PPAVDictionary)<\/span>:<\/span> Integer; cdecl<\/span>; external<\/span> 'avformat.dll'<\/span>;\r\n\/\/ \u58f0\u660e\u5176\u4ed6\u7684FFmpeg\u51fd\u6570<\/span>\r\nimplementation<\/span>\r\nend<\/span>.\r\n<\/code><\/pre>\n
      \n
    1. FFmpeg\u95a2\u6570\u306e\u4f7f\u7528\u65b9\u6cd5\uff1aDelphi\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306e\u30b3\u30fc\u30c9\u3067\u306f\u3001\u5148\u307b\u3069\u5ba3\u8a00\u3057\u305f\u5916\u90e8\u95a2\u6570\u3092\u7528\u3044\u3066FFmpeg\u95a2\u6570\u3092\u547c\u3073\u51fa\u3059\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u4f8b\u3048\u3070\u3001\u30d3\u30c7\u30aa\u30d5\u30a1\u30a4\u30eb\u3092\u958b\u3044\u3066\u30d5\u30ec\u30fc\u30e0\u3092\u8aad\u307f\u8fbc\u3080\u305f\u3081\u306b\u306f\u3001\u6b21\u306e\u3088\u3046\u306a\u30b3\u30fc\u30c9\u3092\u66f8\u304f\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/li>\n<\/ol>\n
      uses<\/span>\r\nFFmpegUtils;\r\nvar<\/span>\r\npFormatContext: PAVFormatContext;\r\nvideoStreamIndex: Integer;\r\npCodecContext: PAVCodecContext;\r\npFrame: PAVFrame;\r\npPacket: PAVPacket;\r\nfilename: PAnsiChar;\r\nret: Integer;\r\nbegin<\/span>\r\n\/\/ \u6ce8\u518c\u6240\u6709\u7684FFmpeg\u7ec4\u4ef6<\/span>\r\nav_register_all;\r\n\/\/ \u6253\u5f00\u89c6\u9891\u6587\u4ef6<\/span>\r\nfilename := 'path_to_your_video_file'<\/span>;\r\nret := avformat_open_input(pFormatContext, filename, nil<\/span>, nil<\/span>);\r\nif<\/span> ret <> 0<\/span> then<\/span>\r\nbegin<\/span>\r\nShowMessage('\u65e0\u6cd5\u6253\u5f00\u89c6\u9891\u6587\u4ef6'<\/span>);\r\nExit<\/span>;\r\nend<\/span>;\r\n\/\/ \u83b7\u53d6\u89c6\u9891\u6d41\u7d22\u5f15<\/span>\r\nvideoStreamIndex := av_find_best_stream(pFormatContext, AVMEDIA_TYPE_VIDEO, -1<\/span>, -1<\/span>, nil<\/span>, 0<\/span>);\r\nif<\/span> videoStreamIndex < 0<\/span> then<\/span>\r\nbegin<\/span>\r\nShowMessage('\u65e0\u6cd5\u627e\u5230\u89c6\u9891\u6d41'<\/span>);\r\nExit<\/span>;\r\nend<\/span>;\r\n\/\/ \u83b7\u53d6\u89c6\u9891\u6d41\u7684\u7f16\u89e3\u7801\u5668\u4e0a\u4e0b\u6587<\/span>\r\npCodecContext := pFormatContext.streams[videoStreamIndex].codec;\r\n\/\/ \u521b\u5efa\u5e27\u548c\u6570\u636e\u5305<\/span>\r\npFrame := av_frame_alloc;\r\npPacket := av_packet_alloc;\r\n\/\/ \u5904\u7406\u89c6\u9891\u5e27...<\/span>\r\n\/\/ \u91ca\u653e\u8d44\u6e90<\/span>\r\nav_packet_free(pPacket);\r\nav_frame_free(pFrame);\r\navformat_close_input(pFormatContext);\r\nend<\/span>.\r\n<\/code><\/pre>\n
      \u63d0\u793a\uff1a\u4e0a\u8a18\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u306f\u3001FFmpeg\u30e9\u30a4\u30d6\u30e9\u30ea\u306e\u95a2\u6570\u3092\u547c\u3073\u51fa\u3059\u65b9\u6cd5\u3092\u793a\u3059\u305f\u3081\u306e\u3082\u306e\u3067\u3059\u3002\u5b9f\u969b\u306b\u4f7f\u7528\u3059\u308b\u5834\u5408\u306b\u306f\u3001\u76ee\u7684\u3084\u74b0\u5883\u306b\u5fdc\u3058\u3066\u4fee\u6b63\u3084\u62e1\u5f35\u3092\u884c\u3063\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
      FFmpeg\u3092Delphi\u304b\u3089\u5229\u7528\u3059\u308b\u306b\u306f\u3001FFmpeg\u30e9\u30a4\u30d6\u30e9\u30ea\u306eDLL\u3092\u4f7f\u7528\u3057\u3066\u3001Delphi\u306e\u5916\u90e8\u95a2\u6570\u3092\u7528\u3044\u3066\u30e9\u30a4\u30d6\u30e9\u30ea\u3092\u547c\u3073\u51fa\u3059\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002 \u57fa\u672c\u7684\u306a\u30b9\u30c6\u30c3\u30d7\u3092\u3044\u304f\u3064\u304b\u3054\u7d39\u4ecb\u3057\u307e\u3059\u3002 FFmpeg\u3092\u30c0\u30a6\u30f3\u30ed\u30fc […]<\/p>\n","protected":false},"author":7,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-120948","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"\ndelphi \u304c FFMPEG \u3092\u3069\u306e\u3088\u3046\u306b\u547c\u3073\u51fa\u3059\u304b - Blog - Silicon Cloud<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.silicloud.com\/ja\/blog\/delphi-\u304c-ffmpeg-\u3092\u3069\u306e\u3088\u3046\u306b\u547c\u3073\u51fa\u3059\u304b\/\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"delphi \u304c FFMPEG \u3092\u3069\u306e\u3088\u3046\u306b\u547c\u3073\u51fa\u3059\u304b\" \/>\n<meta property=\"og:description\" content=\"FFmpeg\u3092Delphi\u304b\u3089\u5229\u7528\u3059\u308b\u306b\u306f\u3001FFmpeg\u30e9\u30a4\u30d6\u30e9\u30ea\u306eDLL\u3092\u4f7f\u7528\u3057\u3066\u3001Delphi\u306e\u5916\u90e8\u95a2\u6570\u3092\u7528\u3044\u3066\u30e9\u30a4\u30d6\u30e9\u30ea\u3092\u547c\u3073\u51fa\u3059\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002 \u57fa\u672c\u7684\u306a\u30b9\u30c6\u30c3\u30d7\u3092\u3044\u304f\u3064\u304b\u3054\u7d39\u4ecb\u3057\u307e\u3059\u3002 FFmpeg\u3092\u30c0\u30a6\u30f3\u30ed\u30fc […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/ja\/blog\/delphi-\u304c-ffmpeg-\u3092\u3069\u306e\u3088\u3046\u306b\u547c\u3073\u51fa\u3059\u304b\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - 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