FDK17プロジェクト/コード/04.グラフィック/CAvi.cs

   1 using System;\r
   2 using System.Collections.Generic;\r
   3 using System.Text;\r
   4 using System.Runtime.InteropServices;\r
   5 using System.Drawing;\r
   6 using SlimDX;\r
   7 \r
   8 namespace FDK\r
   9 {\r
  10         public class CAvi : IDisposable\r
  11         {\r
  12                 // プロパティ\r
  13 \r
  14                 public uint dwスケール \r
  15                 {\r
  16                         get;\r
  17                         set; \r
  18                 }\r
  19                 public uint dwレート\r
  20                 {\r
  21                         get;\r
  22                         set;\r
  23                 }\r
  24                 public uint nフレーム高さ\r
  25                 { \r
  26                         get;\r
  27                         set;\r
  28                 }\r
  29                 public uint nフレーム幅\r
  30                 {\r
  31                         get;\r
  32                         set; \r
  33                 }\r
  34 \r
  35 \r
  36                 // コンストラクタ\r
  37 \r
  38                 public CAvi( string filename )\r
  39                 {\r
  40                         if( AVIFileOpen( out this.aviFile, filename, OpenFileFlags.OF_READ, IntPtr.Zero ) != 0 )\r
  41                         {\r
  42                                 this.Release();\r
  43                                 throw new Exception( "AVIFileOpen failed." );\r
  44                         }\r
  45                         if( AVIFileGetStream( this.aviFile, out this.aviStream, streamtypeVIDEO, 0 ) != 0 )\r
  46                         {\r
  47                                 this.Release();\r
  48                                 throw new Exception( "AVIFileGetStream failed." );\r
  49                         }\r
  50                         AVISTREAMINFO psi = new AVISTREAMINFO();\r
  51                         AVIStreamInfo( this.aviStream, ref psi, Marshal.SizeOf( psi ) );\r
  52                         this.dwレート = psi.dwRate;\r
  53                         this.dwスケール = psi.dwScale;\r
  54                         this.nフレーム幅 = psi.rcFrame.right - psi.rcFrame.left;\r
  55                         this.nフレーム高さ = psi.rcFrame.bottom - psi.rcFrame.top;\r
  56                         try\r
  57                         {\r
  58                                 this.frame = AVIStreamGetFrameOpen( this.aviStream, 0 );\r
  59                         }\r
  60                         catch\r
  61                         {\r
  62                                 this.Release();\r
  63                                 throw new Exception( "AVIStreamGetFrameOpen failed." );\r
  64                         }\r
  65                 }\r
  66 \r
  67         \r
  68                 // メソッド\r
  69 \r
  70                 public static void t初期化()\r
  71                 {\r
  72                         AVIFileInit();\r
  73                 }\r
  74                 public static void t終了()\r
  75                 {\r
  76                         AVIFileExit();\r
  77                 }\r
  78                 \r
  79                 public Bitmap GetFrame( int no )\r
  80                 {\r
  81                         if( this.aviStream == IntPtr.Zero )\r
  82                         {\r
  83                                 throw new InvalidOperationException();\r
  84                         }\r
  85                         return BitmapUtil.ToBitmap( AVIStreamGetFrame( this.frame, no ) );\r
  86                 }\r
  87                 public int GetFrameNoFromTime( int time )\r
  88                 {\r
  89                         return (int) ( time * ( ( (double) this.dwレート ) / ( 1000.0 * this.dwスケール ) ) );\r
  90                 }\r
  91                 public IntPtr GetFramePtr( int no )\r
  92                 {\r
  93                         if( this.aviStream == IntPtr.Zero )\r
  94                         {\r
  95                                 throw new InvalidOperationException();\r
  96                         }\r
  97                         return AVIStreamGetFrame( this.frame, no );\r
  98                 }\r
  99                 public int GetMaxFrameCount()\r
 100                 {\r
 101                         if( this.aviStream == IntPtr.Zero )\r
 102                         {\r
 103                                 throw new InvalidOperationException();\r
 104                         }\r
 105                         return AVIStreamLength( this.aviStream );\r
 106                 }\r
 107                 \r
 108                 public unsafe void tBitmap24ToGraphicsStreamR5G6B5( BitmapUtil.BITMAPINFOHEADER* pBITMAPINFOHEADER, DataStream gs, int nWidth, int nHeight )\r
 109                 {\r
 110                         int num = pBITMAPINFOHEADER->biWidthビットマップの幅dot;\r
 111                         int num2 = pBITMAPINFOHEADER->biHeightビットマップの高さdot;\r
 112                         int num3 = ( num * 3 ) + ( ( 4 - ( ( num * 3 ) % 4 ) ) % 4 );\r
 113                         ushort* numPtr = (ushort*) gs.DataPointer.ToPointer();\r
 114                         byte* numPtr2 = (byte*) ( pBITMAPINFOHEADER + 1 );\r
 115                         for( int i = 0; i < num2; i++ )\r
 116                         {\r
 117                                 if( i >= nHeight )\r
 118                                 {\r
 119                                         return;\r
 120                                 }\r
 121                                 for( int j = 0; j < num; j++ )\r
 122                                 {\r
 123                                         if( j >= nWidth )\r
 124                                         {\r
 125                                                 break;\r
 126                                         }\r
 127                                         ushort num6 = (ushort) ( ( ( numPtr2 + ( ( ( num2 - i ) - 1 ) * num3 ) )[ j * 3 ] >> 3 ) & 0x1f );\r
 128                                         ushort num5 = (ushort) ( ( ( ( numPtr2 + ( ( ( num2 - i ) - 1 ) * num3 ) ) + ( j * 3 ) )[ 1 ] >> 2 ) & 0x3f );\r
 129                                         ushort num4 = (ushort) ( ( ( ( numPtr2 + ( ( ( num2 - i ) - 1 ) * num3 ) ) + ( j * 3 ) )[ 2 ] >> 3 ) & 0x1f );\r
 130                                         ( numPtr + ( i * nWidth ) )[ j ] = (ushort) ( ( ( num4 << 11 ) | ( num5 << 5 ) ) | num6 );\r
 131                                 }\r
 132                         }\r
 133                 }\r
 134                 public unsafe void tBitmap24ToGraphicsStreamX8R8G8B8( BitmapUtil.BITMAPINFOHEADER* pBITMAPINFOHEADER, DataStream ds, int nWidth, int nHeight )\r
 135                 {\r
 136                         int num = pBITMAPINFOHEADER->biWidthビットマップの幅dot;\r
 137                         int num2 = pBITMAPINFOHEADER->biHeightビットマップの高さdot;\r
 138                         int num3 = ( num * 3 ) + ( ( 4 - ( ( num * 3 ) % 4 ) ) % 4 );\r
 139                         uint* numPtr = (uint*) ds.DataPointer.ToPointer();\r
 140                         byte* numPtr2 = (byte*) ( pBITMAPINFOHEADER + 1 );\r
 141                         for( int i = 0; i < num2; i++ )\r
 142                         {\r
 143                                 if( i >= nHeight )\r
 144                                 {\r
 145                                         return;\r
 146                                 }\r
 147                                 for( int j = 0; j < num; j++ )\r
 148                                 {\r
 149                                         if( j >= nWidth )\r
 150                                         {\r
 151                                                 break;\r
 152                                         }\r
 153                                         uint num6 = ( numPtr2 + ( ( ( num2 - i ) - 1 ) * num3 ) )[ j * 3 ];\r
 154                                         uint num5 = ( ( numPtr2 + ( ( ( num2 - i ) - 1 ) * num3 ) ) + ( j * 3 ) )[ 1 ];\r
 155                                         uint num4 = ( ( numPtr2 + ( ( ( num2 - i ) - 1 ) * num3 ) ) + ( j * 3 ) )[ 2 ];\r
 156                                         ( numPtr + ( i * nWidth ) )[ j ] = ( ( num4 << 0x10 ) | ( num5 << 8 ) ) | num6;\r
 157                                 }\r
 158                         }\r
 159                 }\r
 160 \r
 161                 #region [ IDisposable＋α 実装 ]\r
 162                 //-----------------\r
 163                 public void Dispose()\r
 164                 {\r
 165                         this.Dispose( true );\r
 166                 }\r
 167                 protected void Dispose( bool disposeManagedObjects )\r
 168                 {\r
 169                         if( !this.bDispose完了済み )\r
 170                         {\r
 171                                 if( this.frame != IntPtr.Zero )\r
 172                                 {\r
 173                                         AVIStreamGetFrameClose( this.frame );\r
 174                                 }\r
 175                                 this.Release();\r
 176                                 this.bDispose完了済み = true;\r
 177                         }\r
 178                 }\r
 179                 ~CAvi()\r
 180                 {\r
 181                         this.Dispose( false );\r
 182                 }\r
 183                 //-----------------\r
 184                 #endregion\r
 185 \r
 186 \r
 187                 // その他\r
 188 \r
 189                 #region [ Win32 AVI関連関数インポート ]\r
 190                 //-----------------\r
 191                 internal enum OpenFileFlags : uint\r
 192                 {\r
 193                         OF_CANCEL = 0x800,\r
 194                         OF_CREATE = 0x1000,\r
 195                         OF_DELETE = 0x200,\r
 196                         OF_EXIST = 0x4000,\r
 197                         OF_PARSE = 0x100,\r
 198                         OF_PROMPT = 0x2000,\r
 199                         OF_READ = 0,\r
 200                         OF_READWRITE = 2,\r
 201                         OF_REOPEN = 0x8000,\r
 202                         OF_SHARE_COMPAT = 0,\r
 203                         OF_SHARE_DENY_NONE = 0x40,\r
 204                         OF_SHARE_DENY_READ = 0x30,\r
 205                         OF_SHARE_DENY_WRITE = 0x20,\r
 206                         OF_SHARE_EXCLUSIVE = 0x10,\r
 207                         OF_VERIFY = 0x400,\r
 208                         OF_WRITE = 1\r
 209                 }\r
 210 \r
 211                 [StructLayout( LayoutKind.Sequential, Pack = 1 )]\r
 212                 internal struct AVISTREAMINFO\r
 213                 {\r
 214                         public uint fccType;\r
 215                         public uint fccHandler;\r
 216                         public uint dwFlags;\r
 217                         public uint dwCaps;\r
 218                         public ushort wPriority;\r
 219                         public ushort wLanguage;\r
 220                         public uint dwScale;\r
 221                         public uint dwRate;\r
 222                         public uint dwStart;\r
 223                         public uint dwLength;\r
 224                         public uint dwInitialFrames;\r
 225                         public uint dwSuggestedBufferSize;\r
 226                         public uint dwQuality;\r
 227                         public uint dwSampleSize;\r
 228                         public CAvi.RECT rcFrame;\r
 229                         public uint dwEditCount;\r
 230                         public uint dwFormatChangeCount;\r
 231                         [MarshalAs( UnmanagedType.ByValArray, SizeConst = 0x40 )]\r
 232                         public ushort[] szName;\r
 233                 }\r
 234 \r
 235                 [StructLayout( LayoutKind.Sequential, Pack = 1 )]\r
 236                 internal struct RECT\r
 237                 {\r
 238                         public uint left;\r
 239                         public uint top;\r
 240                         public uint right;\r
 241                         public uint bottom;\r
 242                 }\r
 243 \r
 244                 [DllImport( "AVIFIL32" )]\r
 245                 private static extern void AVIFileExit();\r
 246                 [DllImport( "AVIFIL32" )]\r
 247                 private static extern uint AVIFileGetStream( IntPtr pfile, out IntPtr ppavi, uint fccType, int lParam );\r
 248                 [DllImport( "AVIFIL32" )]\r
 249                 private static extern void AVIFileInit();\r
 250                 [DllImport( "AVIFIL32" )]\r
 251                 private static extern uint AVIFileOpen( out IntPtr ppfile, string szFile, OpenFileFlags mode, IntPtr pclsidHandler );\r
 252                 [DllImport( "AVIFIL32" )]\r
 253                 private static extern int AVIFileRelease( IntPtr pfile );\r
 254                 [DllImport( "AVIFIL32" )]\r
 255                 private static extern IntPtr AVIStreamGetFrame( IntPtr pgf, int lPos );\r
 256                 [DllImport( "AVIFIL32" )]\r
 257                 private static extern uint AVIStreamGetFrameClose( IntPtr pget );\r
 258                 [DllImport( "AVIFIL32" )]\r
 259                 private static extern IntPtr AVIStreamGetFrameOpen( IntPtr pavi, int lpbiWanted );\r
 260                 [DllImport( "AVIFIL32" )]\r
 261                 private static extern int AVIStreamInfo( IntPtr pavi, ref AVISTREAMINFO psi, int lSize );\r
 262                 [DllImport( "AVIFIL32" )]\r
 263                 private static extern int AVIStreamLength( IntPtr pavi );\r
 264                 [DllImport( "AVIFIL32" )]\r
 265                 private static extern int AVIStreamRelease( IntPtr pavi );\r
 266                 //-----------------\r
 267                 #endregion\r
 268 \r
 269                 #region [ private ]\r
 270                 //-----------------\r
 271                 private IntPtr aviFile = IntPtr.Zero;\r
 272                 private const string AVIFILE32 = "AVIFIL32";\r
 273                 private const int AVIGETFRAMEF_BESTDISPLAYFMT = 1;\r
 274                 private IntPtr aviStream = IntPtr.Zero;\r
 275                 private bool bDispose完了済み;\r
 276                 private IntPtr frame = IntPtr.Zero;\r
 277                 private static readonly uint streamtypeAUDIO = mmioFOURCC( 'a', 'u', 'd', 's' );\r
 278                 private static readonly uint streamtypeMIDI = mmioFOURCC( 'm', 'i', 'd', 's' );\r
 279                 private static readonly uint streamtypeTEXT = mmioFOURCC( 't', 'x', 't', 's' );\r
 280                 private static readonly uint streamtypeVIDEO = mmioFOURCC( 'v', 'i', 'd', 's' );\r
 281 \r
 282                 private static uint mmioFOURCC( char c0, char c1, char c2, char c3 )\r
 283                 {\r
 284                         return ( ( ( ( (uint) c3 << 0x18 ) | ( (uint) c2 << 0x10 ) ) | ( (uint) c1 << 8 ) ) | (uint) c0 );\r
 285                 }\r
 286                 private void Release()\r
 287                 {\r
 288                         if( this.aviStream != IntPtr.Zero )\r
 289                         {\r
 290                                 AVIStreamRelease( this.aviStream );\r
 291                                 this.aviStream = IntPtr.Zero;\r
 292                         }\r
 293                         if( this.aviFile != IntPtr.Zero )\r
 294                         {\r
 295                                 AVIFileRelease( this.aviFile );\r
 296                                 this.aviFile = IntPtr.Zero;\r
 297                         }\r
 298                 }\r
 299                 //-----------------\r
 300                 #endregion\r
 301         }\r
 302 }\r