{"id":2181,"date":"2018-07-14T11:32:47","date_gmt":"2018-07-14T02:32:47","guid":{"rendered":"https:\/\/www.utsbox.com\/?p=2181"},"modified":"2023-12-10T14:46:51","modified_gmt":"2023-12-10T05:46:51","slug":"riff%e3%83%95%e3%82%a1%e3%82%a4%e3%83%ab%e3%81%ab%e3%81%a4%e3%81%84%e3%81%a6-riff%e3%83%95%e3%82%a1%e3%82%a4%e3%83%ab%e3%81%ae%e6%a6%82%e8%a6%81%e3%81%a8%e8%aa%ad%e3%81%bf%e8%be%bc%e3%81%bf","status":"publish","type":"post","link":"https:\/\/www.utsbox.com\/?p=2181","title":{"rendered":"RIFF\u30d5\u30a1\u30a4\u30eb\u306b\u3064\u3044\u3066 &#8211; RIFF\u30d5\u30a1\u30a4\u30eb\u306e\u6982\u8981\u3068\u8aad\u307f\u8fbc\u307f"},"content":{"rendered":"<h1>\u306f\u3058\u3081\u306b<\/h1>\n<p>\u3053\u3053\u3067\u306fRIFF\u30d5\u30a1\u30a4\u30eb\u3068\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u306e\u6982\u8981\u3068\u8aad\u307f\u8fbc\u3080\u305f\u3081\u306e\u30af\u30e9\u30b9\u306e\u5b9f\u88c5\u306b\u3064\u3044\u3066\u8aac\u660e\u3057\u307e\u3059\u3002<\/p>\n<p>\u4eca\u56de\u306e\u4f5c\u6210\u3059\u308b\u30af\u30e9\u30b9\u306e\u30bd\u30fc\u30b9\u30d5\u30a1\u30a4\u30eb\u306f\u3053\u3061\u3089\u306b\u3042\u308a\u307e\u3059\u3002\u3000\u2192\u3000<a href=\"https:\/\/www.utsbox.com\/wp-content\/uploads\/2023\/12\/riffsample_20231210.zip\">riffsample_20231210<\/a><br \/>\n\u203bWav\u30d5\u30a1\u30a4\u30eb\u3084Soundfont\u30d5\u30a1\u30a4\u30eb\u8aad\u8fbc\u30b5\u30f3\u30d7\u30eb\u3082\u540c\u68b1\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>RIFF\u30d5\u30a1\u30a4\u30eb\u5f62\u5f0f\u3092\u3082\u3068\u306b\u3057\u3066\u4f5c\u3089\u308c\u305f\u30d5\u30a1\u30a4\u30eb\u306e\u53d6\u308a\u6271\u306b\u3064\u3044\u3066\u3082\u4e0b\u8a18\u306b\u307e\u3068\u3081\u3066\u3044\u307e\u3059\u3002<\/p>\n<ul>\n<li><a href=\"https:\/\/www.utsbox.com\/?p=3613\">Wav\u30d5\u30a1\u30a4\u30eb\u306e\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u3068\u8aad\u8fbc<\/a><\/li>\n<li><a href=\"https:\/\/www.utsbox.com\/?page_id=2076\">SoundFont\u306e\u8aad\u307f\u8fbc\u307f\u3068\u7d44\u307f\u7acb\u3066<\/a><\/li>\n<\/ul>\n<h1 id=\"RIFF\u30d5\u30a1\u30a4\u30eb\u3068\u306f\">RIFF\u30d5\u30a1\u30a4\u30eb\u3068\u306f<\/h1>\n<p>RIFF\u30d5\u30a1\u30a4\u30eb\u3068\u306f\u300cResource Interchange File Format\u300d\u306e\u7565\u306b\u306a\u308a\u307e\u3059\u3002<br \/>\nMicrosoft\u3068IBM\u304c\u63d0\u6848\u3057\u305f\u30de\u30eb\u30c1\u30e1\u30c7\u30a3\u30a2\u7528\u306e\u30d5\u30a1\u30a4\u30eb\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u3067\u3001\u97f3\u58f0\u3084\u52d5\u753b\u306a\u3069\u306e\u30c7\u30fc\u30bf(=Resource)\u3092\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u9593\u3067\u3084\u308a\u53d6\u308a(Interchange)\u3059\u308b\u305f\u3081\u306e\u30d5\u30a1\u30a4\u30eb\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u56fa\u6709\u306e\u60c5\u5831\u3092\u30d5\u30a1\u30a4\u30eb\u306b\u4ed8\u4e0e\u3057\u3066\u3082\u3001\u4ed6\u306e\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3067\u306e\u8aad\u307f\u8fbc\u307f\u306b\u5f71\u97ff\u3092\u306a\u304f\u3059\u3088\u3046\u306b\u8a2d\u8a08\u3055\u308c\u305f\u30d5\u30a1\u30a4\u30eb\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u3067\u3059\u3002<br \/>\n<!--more--><br \/>\n\u6709\u540d\u306a\u30d5\u30a1\u30a4\u30eb\u3068\u3057\u3066\u97f3\u58f0\u30d5\u30a1\u30a4\u30eb\u306e\u300c.wav\u300d\u3084\u52d5\u753b\u30d5\u30a1\u30a4\u30eb\u306e\u300c.avi\u300d\u306a\u3069\u304c\u3042\u308b\u4ed6\u3001DTM\u3067\u30b5\u30f3\u30d7\u30e9\u30fc\u7b49\u306e\u97f3\u8272\u30d5\u30a1\u30a4\u30eb\u3068\u3057\u3066\u4f7f\u308f\u308c\u308b<a href=\"https:\/\/www.utsbox.com\/?page_id=2076\">SoundFont\u30d5\u30a1\u30a4\u30eb(.sf2)<\/a>\u3082\u3053\u306eRIFF\u30d5\u30a1\u30a4\u30eb\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u3068\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n<h1 id=\"RIFF\u30d5\u30a1\u30a4\u30eb\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u6982\u8981\">RIFF\u30d5\u30a1\u30a4\u30eb\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u6982\u8981<\/h1>\n<p>RIFF\u30d5\u30a1\u30a4\u30eb\u3067\u306f\u30c7\u30fc\u30bf\u306b4Byte\u306e\u8b58\u5225\u5b50(ID)\u3092\u4ed8\u3051\u3066\u30c7\u30fc\u30bf\u3092\u7ba1\u7406\u3057\u307e\u3059\u3002<\/p>\n<p>\u8b58\u5225\u5b50(ID)\u306fFourCC(4 character code\u306e\u7565)\u3068\u547c\u3070\u308c\u308b\u5f62\u5f0f\u3067\u30011\u6587\u5b571Byte\u306e4\u6587\u5b57(4Byte)\u3067\u3042\u3089\u308f\u3059\u5f62\u5f0f\u306b\u306a\u308a\u307e\u3059\u3002<br \/>\n(NULL\u6587\u5b57\u3067\u7d42\u7aef\u3055\u308c\u3066\u304a\u3089\u305a4Byte\u56fa\u5b9a\u3067\u3059\u306e\u3067\u6587\u5b57\u5217\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002)<\/p>\n<p>\u8b58\u5225\u5b50(ID)\u3092\u4ed8\u3051\u3066\u307e\u3068\u3081\u305f\u30c7\u30fc\u30bf\u306e\u304b\u305f\u307e\u308a\u3092\u30c1\u30e3\u30f3\u30af(Chunk)\u3068\u547c\u3073\u307e\u3059\u3002\u8b58\u5225\u5b50(ID)\u306f\u30c1\u30e3\u30f3\u30afID\u3068\u3082\u547c\u3070\u308c\u307e\u3059\u3002<br \/>\n\u30c1\u30e3\u30f3\u30af\u306f\u968e\u5c64\u69cb\u9020\u306b\u3057\u3066\u7ba1\u7406\u3059\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>RIFF\u30d5\u30a1\u30a4\u30eb\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u306e\u30a4\u30e1\u30fc\u30b8\u306f\u4e0b\u8a18\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p><a href=\"https:\/\/www.utsbox.com\/wp-content\/uploads\/2018\/07\/20180714_01.png\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.utsbox.com\/wp-content\/uploads\/2018\/07\/20180714_01.png\" alt=\"\" width=\"600\" height=\"459\" class=\"alignnone size-full wp-image-2407\" srcset=\"https:\/\/www.utsbox.com\/wp-content\/uploads\/2018\/07\/20180714_01.png 869w, https:\/\/www.utsbox.com\/wp-content\/uploads\/2018\/07\/20180714_01-300x230.png 300w, https:\/\/www.utsbox.com\/wp-content\/uploads\/2018\/07\/20180714_01-768x588.png 768w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/a><\/p>\n<h1 id=\"\u30c1\u30e3\u30f3\u30af\u306b\u3064\u3044\u3066\">\u30c1\u30e3\u30f3\u30af\u306b\u3064\u3044\u3066<\/h1>\n<p>1\u30641\u3064\u306e\u30c1\u30e3\u30f3\u30af\u306f\u3059\u3079\u3066\u4e0b\u8a18\u306e\u69cb\u9020\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n<table>\n<tr>\n<th>\u69cb\u9020<\/th>\n<th>\u30b5\u30a4\u30ba<\/th>\n<th>\u6982\u8981<\/th>\n<\/tr>\n<tr>\n<td>\u30c1\u30e3\u30f3\u30afID<\/td>\n<td>4Byte<\/td>\n<td>\u30c7\u30fc\u30bf\u306b\u3064\u3051\u3089\u308c\u305f\u8b58\u5225\u5b50(ID)\u3002<br \/>\u3010\u4f8b\u3011\u300cWAVE\u300d\u300cfmt \u300d\u300csmpl\u300d\u306a\u3069\u3002(\u300cfmt \u300d\u306e\u6700\u5f8c\u306f\u7a7a\u767d\u6587\u5b57\u304c\u3042\u308b\u3002)<\/td>\n<\/tr>\n<tr>\n<td>\u30c7\u30fc\u30bf\u30b5\u30a4\u30ba<\/td>\n<td>4Byte<\/td>\n<td>\u30c7\u30fc\u30bf\u90e8\u306e\u30b5\u30a4\u30ba\u3002\u5358\u4f4d\u306fByte\u3002<br \/>\u3010\u4f8b\u3011\u30c7\u30fc\u30bf\u90e8\u306e\u30b5\u30a4\u30ba\u304c100byte\u306a\u3089100\u306b\u306a\u308b\u3002<\/td>\n<\/tr>\n<tr>\n<td>\u30c7\u30fc\u30bf\u90e8<\/td>\n<td>&#8211;<\/td>\n<td>\u5b9f\u969b\u306e\u30c7\u30fc\u30bf\u5185\u5bb9\u3002\u30b5\u30a4\u30ba\u306f\u4e0a\u8a18\u306e\u300c\u30c7\u30fc\u30bf\u30b5\u30a4\u30ba\u300d\u306b\u306a\u308b\u3002<br \/>\u3010\u4f8b\u3011wav\u30d5\u30a1\u30a4\u30eb\u306e\u8b58\u5225\u5b50\u300cdata\u300d\u306e\u30c1\u30e3\u30f3\u30af\u306a\u3089\u97f3\u58f0\u6ce2\u5f62\u30c7\u30fc\u30bf\u304c\u4fdd\u5b58\u3055\u308c\u3066\u3044\u308b<\/td>\n<\/tr>\n<\/table>\n<p>\u30c1\u30e3\u30f3\u30af\u3084\u30c7\u30fc\u30bf\u30b5\u30a4\u30ba\u3001\u30c7\u30fc\u30bf\u90e8\u306e\u30a8\u30f3\u30c7\u30a3\u30a2\u30f3\u306f\u57fa\u672c\u7684\u306b<strong>\u30ea\u30c8\u30eb\u30a8\u30f3\u30c7\u30a3\u30a2\u30f3<\/strong>\u306b\u306a\u308a\u307e\u3059\u3002(MIDI\u306eSMF\u30d5\u30a1\u30a4\u30eb\u306a\u3069\u306f\u30d3\u30c3\u30b0\u30a8\u30f3\u30c7\u30a3\u30a2\u30f3\u306e\u3088\u3046\u3067\u3059\u3002)<br \/>\n\u7279\u6b8a\u306a\u30c1\u30e3\u30f3\u30af\u3068\u3057\u3066<strong>RIFF\u30c1\u30e3\u30f3\u30af<\/strong>\u3068<strong>LIST\u30c1\u30e3\u30f3\u30af<\/strong>\u304c\u3042\u308a\u307e\u3059\u3002\u305d\u308c\u4ee5\u5916\u306f\u4e00\u822c\u30c1\u30e3\u30f3\u30af\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n<h2 id=\"RIFF\u30c1\u30e3\u30f3\u30af\u306b\u3064\u3044\u3066\">RIFF\u30c1\u30e3\u30f3\u30af\u306b\u3064\u3044\u3066<\/h2>\n<p>RIFF\u30c1\u30e3\u30f3\u30af\u306f\u5fc5\u305a\u30d5\u30a1\u30a4\u30eb\u306e\u5148\u982d\u306b\u3042\u308b\u30c1\u30e3\u30f3\u30af\u3067\u3001\u5fc5\u305aRIFF\u30d5\u30a1\u30a4\u30eb\u306e\u30c8\u30c3\u30d7\u968e\u5c64\u306b\u306a\u308a\u307e\u3059\u3002<br \/>\n(\u4ed6\u306e\u30c1\u30e3\u30f3\u30af\u306f\u3059\u3079\u3066RIFF\u30c1\u30e3\u30f3\u30af\u914d\u4e0b\u3068\u306a\u308a\u307e\u3059\u3002)<\/p>\n<p>RIFF\u30c1\u30e3\u30f3\u30af\u306e\u30c1\u30e3\u30f3\u30afID\u306f\u300cRIFF\u300d\u56fa\u5b9a\u3067\u3001\u30c7\u30fc\u30bf\u90e8\u306e\u5148\u982d4Byte\u306f\u30d5\u30a1\u30a4\u30eb\u8b58\u5225\u5b50\u3068\u547c\u3070\u308c\u308bFourCC\u5f62\u5f0f\u306e\u30c7\u30fc\u30bf\u304c\u5165\u308a\u307e\u3059\u3002<br \/>\n\u30d5\u30a1\u30a4\u30eb\u8b58\u5225\u5b50\u306f\u30d5\u30a1\u30a4\u30eb\u306e\u7a2e\u985e\u3092\u793a\u3059\u305f\u3081\u306e\u30b3\u30fc\u30c9\u306b\u306a\u308a\u307e\u3059\u3002(\u3010\u4f8b\u3011wav\u30d5\u30a1\u30a4\u30eb\u306e\u5834\u5408\u300cWAVE\u300d\u3001SoundFont\u30d5\u30a1\u30a4\u30eb\u306e\u5834\u5408\u300csfbk\u300d\u7b49)<\/p>\n<table>\n<tr>\n<th>\u69cb\u9020<\/th>\n<th>\u30b5\u30a4\u30ba<\/th>\n<th>\u6982\u8981<\/th>\n<\/tr>\n<tr>\n<td>\u30c1\u30e3\u30f3\u30afID<\/td>\n<td>4Byte<\/td>\n<td>\u300cRIFF\u300d\u56fa\u5b9a<\/td>\n<\/tr>\n<tr>\n<td>\u30c7\u30fc\u30bf\u30b5\u30a4\u30ba<\/td>\n<td>4Byte<\/td>\n<td>\u30c7\u30fc\u30bf\u90e8\u306e\u30b5\u30a4\u30ba\u3002\u5fc5\u305a\u300c\u30d5\u30a1\u30a4\u30eb\u30b5\u30a4\u30ba &#8211; 8Byte\u300d\u3068\u306a\u308b\u3002<br \/>(\u30d5\u30a1\u30a4\u30eb\u30b5\u30a4\u30ba\u304b\u3089\u30c1\u30e3\u30f3\u30afID 4Byte\u3068\u30c7\u30fc\u30bf\u30b5\u30a4\u30ba 4Byte\u3092\u9664\u3044\u305f\u5024\u3002)<\/td>\n<\/tr>\n<tr>\n<td>\u30c7\u30fc\u30bf\u90e8<\/td>\n<td>&#8211;<\/td>\n<td>\u5b9f\u969b\u306e\u30c7\u30fc\u30bf\u5185\u5bb9\u3002<br \/>\u5148\u982d4Byte\u306f\u30d5\u30a1\u30a4\u30eb\u8b58\u5225\u5b50(FourCC\u5f62\u5f0f)\u3067\u3001\u305d\u306e\u5f8c\u306fLIST\u30c1\u30e3\u30f3\u30af\u3084\u4e00\u822c\u30c1\u30e3\u30f3\u30af\u304c\u4fdd\u5b58\u3055\u308c\u3066\u3044\u308b\u3002<br \/>\u3010\u30d5\u30a1\u30a4\u30eb\u8b58\u5225\u5b50 \u4f8b\u3011wav\u30d5\u30a1\u30a4\u30eb\u306e\u5834\u5408\u300cWAVE\u300d\u3001SoundFont\u30d5\u30a1\u30a4\u30eb\u306e\u5834\u5408\u300csfbk\u300d\u7b49<\/td>\n<\/tr>\n<\/table>\n<h2 id=\"LIST\u30c1\u30e3\u30f3\u30af\u306b\u3064\u3044\u3066\">LIST\u30c1\u30e3\u30f3\u30af\u306b\u3064\u3044\u3066<\/h2>\n<p>LIST\u30c1\u30e3\u30f3\u30af\u306f\u4e00\u822c\u30c1\u30e3\u30f3\u30af\u3092\u307e\u3068\u3081\u308b\u305f\u3081\u306e\u30c1\u30e3\u30f3\u30af\u306b\u306a\u308a\u307e\u3059\u3002(\u4e00\u822c\u30c1\u30e3\u30f3\u30af\u914d\u4e0b\u306b\u306f\u30c1\u30e3\u30f3\u30af\u3092\u5165\u308c\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u305b\u3093\u3002)<\/p>\n<p>LIST\u30c1\u30e3\u30f3\u30af\u306e\u30c1\u30e3\u30f3\u30afID\u306f\u300cLIST\u300d\u56fa\u5b9a\u3067\u3001\u30c7\u30fc\u30bf\u90e8\u306e\u5148\u982d4Byte\u306fLIST\u8b58\u5225\u5b50\u3068\u547c\u3070\u308c\u308bFourCC\u5f62\u5f0f\u306e\u30c7\u30fc\u30bf\u304c\u5165\u308a\u307e\u3059\u3002<br \/>\nLIST\u8b58\u5225\u5b50\u306fLIST\u30c1\u30e3\u30f3\u30af\u306e\u7a2e\u985e\u3092\u793a\u3059\u305f\u3081\u306e\u30b3\u30fc\u30c9\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<table>\n<tr>\n<th>\u69cb\u9020<\/th>\n<th>\u30b5\u30a4\u30ba<\/th>\n<th>\u6982\u8981<\/th>\n<\/tr>\n<tr>\n<td>\u30c1\u30e3\u30f3\u30afID<\/td>\n<td>4Byte<\/td>\n<td>\u300cLIST\u300d\u56fa\u5b9a<\/td>\n<\/tr>\n<tr>\n<td>\u30c7\u30fc\u30bf\u30b5\u30a4\u30ba<\/td>\n<td>4Byte<\/td>\n<td>\u30c7\u30fc\u30bf\u90e8\u306e\u30b5\u30a4\u30ba\u3002\u914d\u4e0b\u306e\u5168\u30c1\u30e3\u30f3\u30af\u5408\u8a08\u30b5\u30a4\u30ba + 4Byte(LIST\u8b58\u5225\u5b50\u5206)\u306b\u306a\u308b\u3002<\/td>\n<\/tr>\n<tr>\n<td>\u30c7\u30fc\u30bf\u90e8<\/td>\n<td>&#8211;<\/td>\n<td>\u5b9f\u969b\u306e\u30c7\u30fc\u30bf\u5185\u5bb9\u3002<br \/>\u5148\u982d4Byte\u306fLIST\u8b58\u5225\u5b50(FourCC\u5f62\u5f0f)\u3067\u3001\u305d\u306e\u5f8c\u306f\u4e00\u822c\u30c1\u30e3\u30f3\u30af\u304c\u4fdd\u5b58\u3055\u308c\u3066\u3044\u308b\u3002<br \/>\u3010LIST\u8b58\u5225\u5b50 \u4f8b\u3011SoundFont\u30d5\u30a1\u30a4\u30eb\u306e\u5834\u5408\u300cINFO\u300d\u300csdta\u300d\u300cpdta\u300d\u7b49<\/td>\n<\/tr>\n<\/table>\n<h2 id=\"\u30c1\u30e3\u30f3\u30af\u69cb\u9020\u30a4\u30e1\u30fc\u30b8\">\u30c1\u30e3\u30f3\u30af\u69cb\u9020\u30a4\u30e1\u30fc\u30b8<\/h2>\n<p>\u5404\u30c1\u30e3\u30f3\u30af\u306e\u69cb\u9020\u3092\u30a4\u30e1\u30fc\u30b8\u3057\u305f\u56f3\u304c\u4e0b\u8a18\u306b\u306a\u308a\u307e\u3059\u3002<br \/>\n\u57fa\u672c\u7684\u306bRIFF\u30c1\u30e3\u30f3\u30af\u3092\u30c8\u30c3\u30d7\u968e\u5c64\u3068\u3057\u3066\u3001\u305d\u306e\u914d\u4e0b\u306bLIST\u30c1\u30e3\u30f3\u30af\u3084\u4e00\u822c\u30c1\u30e3\u30f3\u30af\u304c\u3042\u308b\u968e\u5c64\u69cb\u9020\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n<p><a href=\"https:\/\/www.utsbox.com\/wp-content\/uploads\/2018\/07\/20180714_02.png\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.utsbox.com\/wp-content\/uploads\/2018\/07\/20180714_02.png\" alt=\"\" width=\"600\" height=\"665\" class=\"alignnone size-full wp-image-2411\" srcset=\"https:\/\/www.utsbox.com\/wp-content\/uploads\/2018\/07\/20180714_02.png 803w, https:\/\/www.utsbox.com\/wp-content\/uploads\/2018\/07\/20180714_02-270x300.png 270w, https:\/\/www.utsbox.com\/wp-content\/uploads\/2018\/07\/20180714_02-768x852.png 768w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/a><\/p>\n<p>RIFF\u30d5\u30a1\u30a4\u30eb\u5f62\u5f0f\u3092\u3082\u3068\u306b\u3057\u3066\u4f5c\u3089\u308c\u305f\u30d5\u30a1\u30a4\u30eb\u306b\u306f\u53b3\u5bc6\u306b\u968e\u5c64\u69cb\u9020\u3084\u30c1\u30e3\u30f3\u30af\u306e\u9806\u756a\u7b49\u304c\u6c7a\u3081\u3089\u308c\u3066\u3044\u308b\u3082\u306e\u3082\u3042\u308b\u3088\u3046\u3067\u3059\u3002<\/p>\n<h2 id=\"\u30c1\u30e3\u30f3\u30afID\u306e\u91cd\u8907\u306b\u3064\u3044\u3066\">\u30c1\u30e3\u30f3\u30afID\u306e\u91cd\u8907\u306b\u3064\u3044\u3066<\/h2>\n<p>\u30c1\u30e3\u30f3\u30afID\u306b\u3064\u3044\u3066\u306f\u91cd\u8907\u304c\u8a31\u3055\u308c\u3066\u3044\u308b\u3088\u3046\u3067\u3001\u30b9\u30bf\u30f3\u30c0\u30fc\u30c9MIDI\u30d5\u30a1\u30a4\u30eb(.smf\u30d5\u30a1\u30a4\u30eb)\u306a\u3069\u306f\u540c\u3058\u30c1\u30e3\u30f3\u30afID\u306e\u30c1\u30e3\u30f3\u30af\u304c\u8907\u6570\u5b58\u5728\u3059\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<h1 id=\"RIFF\u30d5\u30a1\u30a4\u30eb\u8aad\u307f\u8fbc\u307f\u306b\u3064\u3044\u3066\">RIFF\u30d5\u30a1\u30a4\u30eb\u8aad\u307f\u8fbc\u307f\u306b\u3064\u3044\u3066<\/h1>\n<p>RIFF\u30d5\u30a1\u30a4\u30eb\u306e\u8aad\u307f\u8fbc\u307f\u65b9\u6cd5\u3068\u3057\u3066\u7c21\u5358\u306a\u65b9\u6cd5\u306f\u3001\u30d5\u30a1\u30a4\u30eb\u3092\u958b\u3044\u3066\u304b\u3089\u4e0b\u8a18\u3092\u7e70\u308a\u8fd4\u3059\u5f62\u3067\u8aad\u307f\u8fbc\u307f\u307e\u3059\u3002<br \/>\n\u53b3\u5bc6\u306b\u306f\u968e\u5c64\u69cb\u9020\u30fb\u30c1\u30e3\u30f3\u30af\u9806\u756a\u7b49\u3092\u8003\u616e\u3057\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u306e\u3067\u3059\u304c\u3001\u4e00\u822c\u30c1\u30e3\u30f3\u30af\u3092\u63a2\u3057\u3066\u305d\u306e\u30c7\u30fc\u30bf\u3092\u8aad\u307f\u8fbc\u3080\u3060\u3051\u3067\u3088\u3044\u5834\u5408\u304c\u591a\u3044\u305f\u3081\u3067\u3059\u3002<\/p>\n<ol>\n<li>\u30d5\u30a1\u30a4\u30eb\u5185\u304b\u3089\u30c1\u30e3\u30f3\u30afID\u3092\u3082\u3068\u306b\u5fc5\u8981\u306a\u4e00\u822c\u30c1\u30e3\u30f3\u30af\u3092\u63a2\u3059<\/li>\n<li>\u63a2\u3057\u305f\u30c1\u30e3\u30f3\u30af\u306e\u30c7\u30fc\u30bf\u30b5\u30a4\u30ba\u5206\u30e1\u30e2\u30ea\u3092\u78ba\u4fdd<\/li>\n<li>\u78ba\u4fdd\u3057\u305f\u30e1\u30e2\u30ea\u306b\u30c1\u30e3\u30f3\u30af\u306e\u30c7\u30fc\u30bf\u3092\u8aad\u307f\u8fbc\u307f<\/li>\n<\/ol>\n<h2 id=\"RIFF\u30d5\u30a1\u30a4\u30eb\u8aad\u307f\u8fbc\u307f\u30af\u30e9\u30b9\">RIFF\u30d5\u30a1\u30a4\u30eb\u8aad\u307f\u8fbc\u307f\u30af\u30e9\u30b9<\/h1>\n<p>\u4eca\u56de\u4f5c\u6210\u3059\u308bRIFF\u30d5\u30a1\u30a4\u30eb\u8aad\u307f\u8fbc\u307f\u30af\u30e9\u30b9\u306fCRiffLoader\u3068\u3057\u3066\u3044\u307e\u3059\u3002<br \/>\nCRiffLoader\u30af\u30e9\u30b9\u306e\u8a73\u7d30\u306f\u5f8c\u8ff0\u3057\u307e\u3059\u304c\u3001\u4e0b\u8a18\u306e\u6a5f\u80fd\u3092\u5099\u3048\u305f\u30af\u30e9\u30b9\u306b\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<ul>\n<li>\u30d5\u30a1\u30a4\u30eb\u3092\u958b\u304f\u305f\u3081\u306e\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf<\/li>\n<li>\u30c1\u30e3\u30f3\u30afID\u3092\u6307\u5b9a\u3059\u308b\u3068\u305d\u306e\u30c1\u30e3\u30f3\u30af\u306e\u30b5\u30a4\u30ba\u3092\u8fd4\u3059getChunkSize()\u95a2\u6570<\/li>\n<li>\u30c1\u30e3\u30f3\u30afID\u3092\u6307\u5b9a\u3059\u308b\u3068\u305d\u306e\u30c1\u30e3\u30f3\u30af\u306e\u30c7\u30fc\u30bf\u3092\u30d0\u30c3\u30d5\u30a1\u306b\u30b3\u30d4\u30fc\u3059\u308bgetChunkData()\u95a2\u6570<\/li>\n<\/ul>\n<p>CRiffLoader\u30af\u30e9\u30b9\u3092\u4f7f\u3048\u3070\u300c<a href=\"#RIFF\u30d5\u30a1\u30a4\u30eb\u8aad\u307f\u8fbc\u307f\u306b\u3064\u3044\u3066\">RIFF\u30d5\u30a1\u30a4\u30eb\u8aad\u307f\u8fbc\u307f\u306b\u3064\u3044\u3066<\/a>\u300d\u306e\u624b\u9806\u3067\u8aad\u307f\u8fbc\u3081\u308b\u3088\u3046\u306b\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u3010\u4f7f\u7528\u65b9\u6cd5\u3011<br \/>\n[crayon]<br \/>\n\t\/\/ \u8aad\u307f\u8fbc\u307f\u305f\u3044\u30c1\u30e3\u30f3\u30af\u306eID\u3092\u8a2d\u5b9a(FOURCC\u578b\u306funsigned long\u306e\u518d\u5b9a\u7fa9)<br \/>\n\t\/\/ \u300cFOURCC fccTEST = &#8216;TEST&#8217;;\u300d\u306e\u3088\u3046\u306b\u4ee3\u5165\u3059\u308b\u3068\u3001<br \/>\n\t\/\/ \u30d0\u30a4\u30c8\u30aa\u30fc\u30c0\u30fc\u306e\u95a2\u4fc2\u3067\u4e2d\u8eab\u304c\u9006(\u4e0a\u8a18\u306e\u5834\u5408&#8217;TSET&#8217;)\u306b\u306a\u308b\u306e\u3067\u6ce8\u610f<br \/>\n\tFOURCC fccTEST =  FourCC(&#8216;T&#8217;, &#8216;E&#8217;, &#8216;S&#8217;, &#8216;T&#8217;) ;<\/p>\n<p>\tCRiffLoader rl(&#8220;test.wav&#8221;); \/\/ \u30d5\u30a1\u30a4\u30eb\u3092\u958b\u304f<\/p>\n<p>\t\/\/ \u6307\u5b9a\u3057\u305f\u30c1\u30e3\u30f3\u30af\u306e\u30c7\u30fc\u30bf\u3092\u53d6\u5f97\u3059\u308b<br \/>\n\t\/\/ \u30c1\u30e3\u30f3\u30af\u306e\u30b5\u30a4\u30ba\u3092\u53d6\u5f97 \u2192 \u30b5\u30a4\u30ba\u5206\u306e\u30d0\u30c3\u30d5\u30a1\u78ba\u8a8d \u2192 \u30c7\u30fc\u30bf\u3092\u30d0\u30c3\u30d5\u30a1\u306b\u53d6\u5f97<\/p>\n<p>\t\/\/ \u30c1\u30e3\u30f3\u30af\u30b5\u30a4\u30ba\u3092\u53d6\u5f97\u3002\u5f15\u6570\u306f\u30c1\u30e3\u30f3\u30afID(FOURCC\u578b)\u3002<br \/>\n\t\/\/ \u623b\u308a\u5024\u306f\u30c1\u30e3\u30f3\u30af\u30b5\u30a4\u30ba(DWORD\u578b\u306funsigned long\u306e\u518d\u5b9a\u7fa9)<br \/>\n\tDWORD size = rl.getChunkSize(fccTEST);<\/p>\n<p>\t\/\/ \u30d0\u30c3\u30d5\u30a1\u3092\u78ba\u4fdd<br \/>\n\tchar* buffer = new [size]; <\/p>\n<p>\t\/\/ \u30c1\u30e3\u30f3\u30af\u30c7\u30fc\u30bf\u3092\u30d0\u30c3\u30d5\u30a1\u306b\u53d6\u5f97\u3002\u5f15\u6570\u306f\u30c1\u30e3\u30f3\u30afID(FOURCC\u578b)\u3001\u30d0\u30c3\u30d5\u30a1\u3001\u30d0\u30c3\u30d5\u30a1\u30b5\u30a4\u30ba\u306e\u9806<br \/>\n\trl.getChunkData(fccTEST, buffer, size);<\/p>\n<p>\t\/\/ \u4e0a\u8a18\u3092\u5fc5\u8981\u306a\u30c1\u30e3\u30f3\u30af\u3092\u3059\u3079\u3066\u8aad\u307f\u8fbc\u3080\u307e\u3067\u7e70\u308a\u8fd4\u3059<\/p>\n<p>\t\uff5e\uff5e \u4ee5\u4e0b\u7565 \uff5e\uff5e<\/p>\n<p>[\/crayon]<\/p>\n<p>\u5177\u4f53\u7684\u306bCRiffLoader\u30af\u30e9\u30b9\u306f\u4e0b\u8a18\u306e\u3088\u3046\u306b\u5b9a\u7fa9\u3057\u3066\u3044\u307e\u3059\u3002<br \/>\n\u57fa\u672c\u7684\u306b\u4e0a\u8a18\u306e\u300c\u4f7f\u7528\u65b9\u6cd5\u300d\u4ee5\u4e0a\u306e\u3053\u3068\u306f\u3067\u304d\u307e\u305b\u3093\u306e\u3067\u3001\u8aac\u660e\u306b\u3064\u3044\u3066\u306f\u7701\u7565\u3055\u305b\u3066\u3044\u305f\u3060\u304d\u307e\u3059\u3002<br \/>\n\u6d41\u7528\u3059\u308b\u969b\u306f\u4e0b\u8a18\u306b\u3054\u6ce8\u610f\u304f\u3060\u3055\u3044\u3002<\/p>\n<ul>\n<li>\u53ef\u8aad\u6027\u3092\u4e0a\u3052\u308b\u305f\u3081\u30a8\u30e9\u30fc\u51e6\u7406\u306f\u7701\u3044\u3066\u304a\u308a\u307e\u3059\u306e\u3067\u6d41\u7528\u3059\u308b\u969b\u306f\u5fc5\u8981\u306a\u30a8\u30e9\u30fc\u51e6\u7406\u3092\u8ffd\u8a18\u304f\u3060\u3055\u3044\u3002<\/li>\n<li>\u518d\u5b9a\u7fa9\u3057\u3066\u3044\u308b\u300cBYTE\u300d\u300cWORD\u300d\u300cDWORD\u300d\u300cFOURCC\u300d\u7b49\u306fwindows.h\u7b49\u3068\u91cd\u8907\u3057\u3066\u3044\u308b\u306e\u3067\u5fc5\u8981\u306b\u5fdc\u3058\u3066\u66f8\u304d\u63db\u3048\u3066\u304f\u3060\u3055\u3044<\/li>\n<li>fopen()\u95a2\u6570\u3092\u5229\u7528\u3057\u3066\u3044\u307e\u3059\u304c\u3001Visual Studio\u3067\u306f\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u4e0a\u306e\u8b66\u544a\u304c\u3067\u308b\u306e\u3067\u3001fopen_s()\u95a2\u6570\u306a\u3069\u306b\u66f8\u304d\u63db\u3048\u3066\u304f\u3060\u3055\u3044\u3002<\/li>\n<\/ul>\n<p>\u30bd\u30fc\u30b9\u30d5\u30a1\u30a4\u30eb\u306f\u3053\u3061\u3089\u306b\u306a\u308a\u307e\u3059\u3002\u3000\u2192\u3000<a href=\"https:\/\/www.utsbox.com\/wp-content\/uploads\/2023\/12\/riffsample_20231210.zip\">riffsample_20231210<\/a><br \/>\n\u203bWav\u30d5\u30a1\u30a4\u30eb\u3084Soundfont\u30d5\u30a1\u30a4\u30eb\u8aad\u8fbc\u30b5\u30f3\u30d7\u30eb\u3082\u540c\u68b1\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u3010criffloader.h\u3011<br \/>\n[crayon]<br \/>\n#pragma once<\/p>\n<p>#include <\/p>\n<map>\n#include <vector><br \/>\n#include <string><\/p>\n<p>using namespace std;<\/p>\n<p>\/\/ \u578b\u306e\u518d\u5b9a\u7fa9<br \/>\n\/\/ \u3053\u306e\u518d\u5b9a\u7fa9\u306fwindows.h\u306a\u3069\u306e\u30d8\u30c3\u30c0\u30d5\u30a1\u30a4\u30eb\u3068\u91cd\u8907\u3059\u308b\u306e\u3067\u6ce8\u610f<br \/>\ntypedef unsigned char  BYTE;  \/\/ 1\u30d0\u30a4\u30c8\u30c7\u30fc\u30bf\u7528<br \/>\ntypedef unsigned short WORD;  \/\/ 2\u30d0\u30a4\u30c8\u30c7\u30fc\u30bf\u7528<br \/>\ntypedef unsigned long  DWORD; \/\/ 4\u30d0\u30a4\u30c8\u30c7\u30fc\u30bf\u7528<\/p>\n<p>\/\/ FourCC\u7528\u306b\u578b\u3092\u518d\u5b9a\u7fa9<br \/>\ntypedef DWORD FOURCC;<\/p>\n<p>\/\/ \u30c1\u30e3\u30f3\u30afID\u306e\u5b9a\u7fa9<br \/>\n#define FourCC(c1, c2, c3, c4) (c1 + (c2 << 8) + (c3 << 16) + (c4 << 24)) \/\/ \u30c1\u30e3\u30f3\u30afID\u4f5c\u6210\u7528\u30de\u30af\u30ed\nconst FOURCC fccRIFF = FourCC('R', 'I', 'F', 'F');\nconst FOURCC fccLIST = FourCC('L', 'I', 'S', 'T');\n\n\/\/ Standard MIDI File\u306a\u3069\u306e\u4e00\u90e8\u306e\u30d5\u30a1\u30a4\u30eb\u306f\u30d3\u30c3\u30b0\u30a8\u30f3\u30c7\u30a3\u30a2\u30f3\u306a\u306e\u3067\u5909\u63db\u306b\u5fc5\u8981\n\/\/ (Windows\u306f\u30ea\u30c8\u30eb\u30a8\u30f3\u30c7\u30a3\u30a2\u30f3)\ninline DWORD swap32bit(DWORD data)\n{\n\treturn ((data &#038; 0x000000FF) << 24)\n\t\t+ ((data &#038; 0x0000FF00) << 8)\n\t\t+ ((data &#038; 0x00FF0000) >> 8)<br \/>\n\t\t+ ((data &#038; 0xFF000000) >> 24);<br \/>\n}<\/p>\n<p>inline WORD swap16bit(WORD data)<br \/>\n{<br \/>\n\treturn ((data &#038; 0x00FF) << 8)\n\t\t+ ((data &#038; 0xFF00) >> 8);<br \/>\n}<\/p>\n<p>\/\/ RIFF\u30d5\u30a1\u30a4\u30eb\u3092\u8aad\u307f\u8fbc\u3080\u305f\u3081\u306e\u30af\u30e9\u30b9<br \/>\n\/\/ \u30a8\u30e9\u30fc\u51e6\u7406\u306f\u7701\u3044\u3066\u3044\u308b\u305f\u3081\u5fc5\u8981\u306b\u5fdc\u3058\u3066\u8ffd\u52a0\u3059\u308b\u3053\u3068<br \/>\n\/\/ \u3010\u4f7f\u7528\u65b9\u6cd5\u3011<br \/>\n\/\/   FOURCC fccTEST =  FourCC(&#8216;T&#8217;, &#8216;E&#8217;, &#8216;S&#8217;, &#8216;T&#8217;) ;<br \/>\n\/\/   CRiffLoader rl(&#8220;test.wav&#8221;); \/\/ \u30d5\u30a1\u30a4\u30eb\u3092\u958b\u304f<br \/>\n\/\/<br \/>\n\/\/   \/\/ \u6307\u5b9a\u3057\u305f\u30c1\u30e3\u30f3\u30af\u306e\u30c7\u30fc\u30bf\u3092\u53d6\u5f97\u3059\u308b<br \/>\n\/\/   \/\/ \u30c1\u30e3\u30f3\u30af\u306e\u30b5\u30a4\u30ba\u3092\u53d6\u5f97 \u2192 \u30b5\u30a4\u30ba\u5206\u306e\u30d0\u30c3\u30d5\u30a1\u78ba\u8a8d \u2192 \u30c7\u30fc\u30bf\u3092\u30d0\u30c3\u30d5\u30a1\u306b\u53d6\u5f97<br \/>\n\/\/   DWORD size = rl.getChunkSize(fccTEST);  \/\/ \u30c1\u30e3\u30f3\u30af\u30b5\u30a4\u30ba\u3092\u53d6\u5f97<br \/>\n\/\/<br \/>\n\/\/   char* buffer = new [size];              \/\/ \u30d0\u30c3\u30d5\u30a1\u3092\u78ba\u4fdd<br \/>\n\/\/   rl.getChunkData(fccTEST, buffer, size); \/\/ \u30c1\u30e3\u30f3\u30af\u30c7\u30fc\u30bf\u3092\u53d6\u5f97<br \/>\n\/\/<br \/>\nclass CRiffLoader<br \/>\n{<br \/>\nprivate:<br \/>\n\tFILE* fp = nullptr;<br \/>\n\tDWORD filesize = 0;<br \/>\n\tbool isBigEndian = false;<\/p>\n<p>\tmap<FOURCC, vector<DWORD>> chunkmap; \/\/ \u30c1\u30e3\u30f3\u30af\u30c7\u30fc\u30bf\u306e\u4f4d\u7f6e(\u30d5\u30a1\u30a4\u30eb\u30dd\u30a4\u30f3\u30bf\u4f4d\u7f6e)\u306e\u8a18\u9332\u7528<\/p>\n<p>public:<br \/>\n\t\/\/ \u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u3002\u958b\u304f\u30d5\u30a1\u30a4\u30eb\u3092\u6307\u5b9a\u3059\u308b\u3053\u3068\u3082\u3067\u304d\u308b\u3002<br \/>\n\tCRiffLoader() {};<br \/>\n\tCRiffLoader(string filename, bool bigEndian = false) { open(filename, bigEndian); };<\/p>\n<p>\tvoid open(string filename, bool bigEndian = false)<br \/>\n\t{<br \/>\n\t\t\/\/ \u30d5\u30a1\u30a4\u30eb\u3092\u958b\u304f<br \/>\n\t\tfopen_s(&#038;fp, filename.c_str(), &#8220;rb&#8221;);<br \/>\n\t\tif (fp == nullptr) { return; }<\/p>\n<p>\t\tisBigEndian = bigEndian;<\/p>\n<p>\t\t\/\/ \u30d5\u30a1\u30a4\u30eb\u30b5\u30a4\u30ba\u3092\u53d6\u5f97<br \/>\n\t\t\/\/ fseek(SEEK_END) + ftell()\u3092\u4f7f\u3063\u305f\u30d5\u30a1\u30a4\u30eb\u30b5\u30a4\u30ba\u53d6\u5f97\u306f<br \/>\n\t\t\/\/ \u74b0\u5883\u306b\u3088\u3063\u3066\u306f\u52d5\u4f5c\u3057\u306a\u3044\u306e\u3067\u74b0\u5883\u306b\u5408\u308f\u305b\u3066\u4fee\u6b63\u3059\u308b\u3053\u3068<br \/>\n\t\t\/\/ (Windows 10\u3001Visual Studio 2017 ver15.4.4\u306f\u305f\u3076\u3093\u5927\u4e08\u592b)<br \/>\n\t\tfseek(fp, 0, SEEK_END);<br \/>\n\t\tfilesize = ftell(fp);<br \/>\n\t\tfseek(fp, 0, SEEK_SET); \/\/ \u30d5\u30a1\u30a4\u30eb\u306e\u4f4d\u7f6e\u3092\u6700\u521d\u306b\u623b\u3057\u3066\u304a\u304f<\/p>\n<p>\t\t\/\/ \u30d5\u30a1\u30a4\u30eb\u306e\u7d42\u308f\u308a\u307e\u3067\u78ba\u8a8d\u3057\u3066\u30c1\u30e3\u30f3\u30af\u306e\u4f4d\u7f6e\u3092chunkmap\u306b\u4fdd\u5b58\u3059\u308b<br \/>\n\t\twhile ((DWORD)ftell(fp) < filesize)\n\t\t{\n\t\t\t\/\/ \u30c1\u30e3\u30f3\u30af\u306eID(FourCC)\u3068\u30b5\u30a4\u30ba\u3092\u8aad\u307f\u8fbc\u3080\n\t\t\tDWORD chunkID;\n\t\t\tfread(&#038;chunkID, sizeof(FOURCC), 1, fp);\n\n\t\t\tDWORD chunkSize;\n\t\t\tfread(&#038;chunkSize, sizeof(DWORD), 1, fp);\n\t\t\tif (isBigEndian) { chunkSize = swap32bit(chunkSize); } \/\/ \u30a8\u30f3\u30c7\u30a3\u30a2\u30f3\u306e\u5909\u63db\n\n\t\t\tswitch (chunkID)\n\t\t\t{\n\t\t\tcase fccRIFF: \/\/ RIFF\u30c1\u30e3\u30f3\u30af\u3068INFO\u30c1\u30e3\u30f3\u30af\u306e\u51e6\u7406\n\t\t\tcase fccLIST:\n\t\t\t\t\/\/ \u30c7\u30fc\u30bf\u90e8\u5206\u306e\u6700\u521d 4byte(\u30c1\u30e3\u30f3\u30af\u30bf\u30a4\u30d7)\u3092\u30b9\u30ad\u30c3\u30d7\n\t\t\t\t\/\/ \u6b8b\u308a\u306e\u30c7\u30fc\u30bf\u90e8\u5206\u306f\u30b5\u30d6\u30c1\u30e3\u30f3\u30af\u306a\u306e\u3067\u6700\u521d 4byte\u306e\u307f\u3068\u3059\u308b\n\t\t\t\tfseek(fp, sizeof(DWORD), SEEK_CUR);\n\n\t\t\t\tbreak;\n\n\t\t\tdefault: \/\/ \u901a\u5e38\u306e\u30c1\u30e3\u30f3\u30af\u306e\u51e6\u7406\n\t\t\t\t\/\/ \u30d5\u30a1\u30a4\u30eb\u30dd\u30a4\u30f3\u30bf\u306e\u4f4d\u7f6e\u3092\u4fdd\u5b58\u3057\u3066\u304a\u304f\n\t\t\t\t\/\/ (\u8a72\u5f53\u3059\u308b\u30c1\u30e3\u30f3\u30af\u306e\u30b5\u30a4\u30ba\u306e\u4f4d\u7f6e)\n\t\t\t\tchunkmap[chunkID].push_back((DWORD)ftell(fp) - sizeof(DWORD));\n\n\t\t\t\t\/\/ \u30c7\u30fc\u30bf\u90e8\u5206\u306f\u30b9\u30ad\u30c3\u30d7\u3059\u308b\n\t\t\t\tfseek(fp, chunkSize, SEEK_CUR);\n\n\t\t\t\tbreak;\n\t\t\t}\n\t\t}\n\t}\n\n\t~CRiffLoader()\n\t{\n\t\t\/\/ \u30d5\u30a1\u30a4\u30eb\u3092\u9589\u3058\u308b\n\t\tif (fp != nullptr) { fclose(fp); }\n\t}\n\n\t\/\/ \u30d5\u30a1\u30a4\u30eb\u30b5\u30a4\u30ba\u3092\u53d6\u5f97\u3059\u308b\n\tDWORD getFileSize()\n\t{\n\t\treturn filesize;\n\t};\n\n\t\/\/ \u5f15\u6570\u306echunkID(FourCC)\u3067\u6307\u5b9a\u3057\u305f\u30c1\u30e3\u30f3\u30af\u306e\u6570\u3092\u53d6\u5f97\u3059\u308b\n\t\/\/ (MIDI SMF\u306e\u3088\u3046\u306b\u540c\u3058\u30c1\u30e3\u30f3\u30afID\u304c\u8907\u6570\u3042\u308b\u5834\u5408\u304c\u3042\u308b\u305f\u3081)\n\tDWORD getChunkNum(FOURCC chunkID)\n\t{\n\t\t\/\/ chunkmap\u306bchunkID\u304c\u3042\u308b\u304b\u306e\u30c1\u30a7\u30c3\u30af\n\t\tif (chunkmap.count(chunkID) == 0) { return 0; }\n\n\t\treturn chunkmap[chunkID].size();\n\t}\n\n\t\/\/ \u5f15\u6570\u306echunkID(FourCC)\u3067\u6307\u5b9a\u3057\u305f\u30c1\u30e3\u30f3\u30af\u306e\u30b5\u30a4\u30ba\u3092\u53d6\u5f97\u3059\u308b\n\t\/\/ \u5931\u6557\u3059\u308b\u30680\u3001\u6210\u529f\u3059\u308b\u3068\u30c1\u30e3\u30f3\u30af\u306e\u30b5\u30a4\u30ba\u304c\u8fd4\u308b\n\tDWORD getChunkSize(FOURCC chunkID, DWORD id = 0)\n\t{\n\t\t\/\/ chunkmap\u306bchunkID\u304c\u3042\u308b\u304b\u3084id\u304c\u30b5\u30a4\u30ba\u3092\u8d85\u3048\u3066\u3044\u306a\u3044\u304b\u306e\u30c1\u30a7\u30c3\u30af\n\t\tif (chunkmap.count(chunkID) == 0) { return 0; }\n\t\tif (chunkmap[chunkID].size() <= id) { return 0; }\n\n\t\t\/\/ \u30d5\u30a1\u30a4\u30eb\u30dd\u30a4\u30f3\u30bf\u306e\u4f4d\u7f6e\u3092\u30c1\u30e3\u30f3\u30af\u306e\u5834\u6240\u307e\u3067\u9032\u3081\u3066\u8aad\u307f\u8fbc\u307f\n\t\tDWORD size = 0;\n\t\tfseek(fp, chunkmap[chunkID][id], SEEK_SET);\n\t\tfread(&#038;size, sizeof(DWORD), 1, fp);\n\n\t\tif (isBigEndian) { size = swap32bit(size); } \/\/ \u30a8\u30f3\u30c7\u30a3\u30a2\u30f3\u306e\u5909\u63db\n\t\treturn size;\n\t}\n\n\t\/\/ \u5f15\u6570\u306echunkID(FourCC)\u3067\u6307\u5b9a\u3057\u305f\u30c1\u30e3\u30f3\u30af\u306e\u30c7\u30fc\u30bf\u3092data\u306b\u53d6\u5f97\u3059\u308b\n\t\/\/ \u5931\u6557\u3059\u308b\u30680\u3001\u6210\u529f\u3059\u308b\u30681\u304c\u8fd4\u308b\n\tDWORD getChunkData(FOURCC chunkID, void* data, DWORD datasize, DWORD id = 0)\n\t{\n\t\t\/\/ chunkmap\u306bchunkID\u304c\u3042\u308b\u304b\u3084id\u304c\u30b5\u30a4\u30ba\u3092\u8d85\u3048\u3066\u3044\u306a\u3044\u304b\u306e\u30c1\u30a7\u30c3\u30af\n\t\tif (chunkmap.count(chunkID) == 0) {\treturn 0; }\n\t\tif (chunkmap[chunkID].size() <= id) { return 0; }\n\n\t\t\/\/ \u30d5\u30a1\u30a4\u30eb\u30dd\u30a4\u30f3\u30bf\u306e\u4f4d\u7f6e\u3092\u30c1\u30e3\u30f3\u30af\u306e\u5834\u6240\u307e\u3067\u9032\u3081\u3066\u8aad\u307f\u8fbc\u307f\n\t\tDWORD size = 0;\n\t\tfseek(fp, chunkmap[chunkID][id], SEEK_SET);\n\t\tfread(&#038;size, sizeof(DWORD), 1, fp);\n\n\t\tif (isBigEndian) { size = swap32bit(size); } \/\/ \u30a8\u30f3\u30c7\u30a3\u30a2\u30f3\u306e\u5909\u63db\n\t\tsize = (datasize > size) ? (size) : (datasize);<\/p>\n<p>\t\tfread(data, size, 1, fp);<\/p>\n<p>\t\treturn 1;<br \/>\n\t}<br \/>\n};<br \/>\n[\/crayon]<\/p>\n<h1 id=\"\u6700\u5f8c\u306b\">\u6700\u5f8c\u306b<\/h1>\n<p>RIFF\u30d5\u30a1\u30a4\u30eb\u306e\u6982\u8981\u3068\u8aad\u307f\u8fbc\u307f\u306f\u4ee5\u4e0a\u3067\u3059\u3002<br \/>\nRIFF\u30d5\u30a1\u30a4\u30eb\u5f62\u5f0f\u3092\u3082\u3068\u306b\u3057\u3066\u4f5c\u3089\u308c\u305f\u30d5\u30a1\u30a4\u30eb\u306e\u53d6\u308a\u6271\u306b\u3064\u3044\u3066\u3082\u4e0b\u8a18\u306b\u307e\u3068\u3081\u3066\u3044\u307e\u3059\u3002\u5fc5\u8981\u306b\u5fdc\u3058\u3066\u3054\u53c2\u7167\u304f\u3060\u3055\u3044\u3002<\/p>\n<ul>\n<li><a href=\"https:\/\/www.utsbox.com\/?p=3613\">Wav\u30d5\u30a1\u30a4\u30eb\u306e\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u3068\u8aad\u8fbc<\/a><\/li>\n<li><a href=\"https:\/\/www.utsbox.com\/?page_id=2076\">SoundFont\u306e\u8aad\u307f\u8fbc\u307f\u3068\u7d44\u307f\u7acb\u3066<\/a><\/li>\n<\/ul>\n<p>\u4eca\u56de\u306e\u4f5c\u6210\u3059\u308b\u30af\u30e9\u30b9\u306e\u30bd\u30fc\u30b9\u30d5\u30a1\u30a4\u30eb\u306f\u3053\u3061\u3089\u306b\u3042\u308a\u307e\u3059\u3002\u3000\u2192\u3000<a href=\"https:\/\/www.utsbox.com\/wp-content\/uploads\/2023\/12\/riffsample_20231210.zip\">riffsample_20231210<\/a><br \/>\n\u203bWav\u30d5\u30a1\u30a4\u30eb\u3084Soundfont\u30d5\u30a1\u30a4\u30eb\u8aad\u8fbc\u30b5\u30f3\u30d7\u30eb\u3082\u540c\u68b1\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u8cea\u554f\u306f\u30b3\u30e1\u30f3\u30c8\u6b04\u3084<a href=\"https:\/\/jbbs.shitaraba.net\/computer\/42917\/\" title=\"\u63b2\u793a\u677f\" target=\"_blank\" rel=\"noopener\">\u63b2\u793a\u677f<\/a>\u3001<a href=\"https:\/\/twitter.com\/vstcpp\">Twitter<\/a>\u3067\u3044\u305f\u3060\u3051\u3070\u3068\u304a\u3082\u3044\u307e\u3059\u3002<br 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[&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":false},"categories":[23],"tags":[],"class_list":["post-2181","post","type-post","status-publish","format-standard","hentry","category-23"],"aioseo_notices":[],"jetpack_featured_media_url":"","jetpack_shortlink":"https:\/\/wp.me\/p5fXUX-zb","jetpack_sharing_enabled":true,"jetpack_likes_enabled":true,"_links":{"self":[{"href":"https:\/\/www.utsbox.com\/index.php?rest_route=\/wp\/v2\/posts\/2181","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.utsbox.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.utsbox.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.utsbox.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.utsbox.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2181"}],"version-history":[{"count":27,"href":"https:\/\/www.utsbox.com\/index.php?rest_route=\/wp\/v2\/posts\/2181\/revisions"}],"predecessor-version":[{"id":3932,"href":"https:\/\/www.utsbox.com\/index.php?rest_route=\/wp\/v2\/posts\/2181\/revisions\/3932"}],"wp:attachment":[{"href":"https:\/\/www.utsbox.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2181"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.utsbox.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2181"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.utsbox.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2181"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}