// --------------------------------------------------------------------
// サムネイル生成
// --------------------------------------------------------------------
private static Thumbnail?CreateThumbnail(String moviePath, String imageFileName, Int32 maxWidth, Int32 maxHeight)
{
try
{
using FileStream sourceStream = new FileStream(imageFileName, FileMode.Open);
return(new Thumbnail
{
Path = moviePath,
Bitmap = ServerCommon.CreateThumbnail(sourceStream, ServerConstants.MIME_TYPE_PNG, maxWidth, maxHeight, false),
Mime = ServerConstants.MIME_TYPE_PNG,
LastModified = YbdCommon.DateTimeToModifiedJulianDate(ServerCommon.LastModified(imageFileName)),
});
}
catch (Exception excep)
{
Debug.WriteLine("サムネイル作成エラー：\n" + excep.Message);
Debug.WriteLine(" スタックトレース：\n" + excep.StackTrace);
return(null);
}
}
// ====================================================================
// private メンバー関数
// ====================================================================
#if DEBUGz
// ====================================================================
// デバッグ専用
// ====================================================================
// --------------------------------------------------------------------
// サムネイル生成テスト
// --------------------------------------------------------------------
private static void TestCreateThumbnail()
{
// 横長・縮小あり
using FileStream y1 = new FileStream(ServerConstants.FOLDER_NAME_SAMPLE_DATA_IMAGES + "Test_430x177.png", FileMode.Open);
File.WriteAllBytes("TestGen_430x177_square.png", ServerCommon.CreateThumbnail(y1, ServerConstants.MIME_TYPE_PNG, MOVIE_THUMB_WIDTH_MAX, MOVIE_THUMB_HEIGHT_MAX, true));
File.WriteAllBytes("TestGen_430x177_rect.png", ServerCommon.CreateThumbnail(y1, ServerConstants.MIME_TYPE_PNG, MOVIE_THUMB_WIDTH_MAX, MOVIE_THUMB_HEIGHT_MAX, false));
// 横長・縮小なし
using FileStream y0 = new FileStream(ServerConstants.FOLDER_NAME_SAMPLE_DATA_IMAGES + "Test_150x62.png", FileMode.Open);
File.WriteAllBytes("TestGen_150x62_square.png", ServerCommon.CreateThumbnail(y0, ServerConstants.MIME_TYPE_PNG, MOVIE_THUMB_WIDTH_MAX, MOVIE_THUMB_HEIGHT_MAX, true));
File.WriteAllBytes("TestGen_150x62_rect.png", ServerCommon.CreateThumbnail(y0, ServerConstants.MIME_TYPE_PNG, MOVIE_THUMB_WIDTH_MAX, MOVIE_THUMB_HEIGHT_MAX, false));
// 縦長・縮小あり
using FileStream t1 = new FileStream(ServerConstants.FOLDER_NAME_SAMPLE_DATA_IMAGES + "Test_250x468.png", FileMode.Open);
File.WriteAllBytes("TestGen_250x468_square.png", ServerCommon.CreateThumbnail(t1, ServerConstants.MIME_TYPE_PNG, MOVIE_THUMB_WIDTH_MAX, MOVIE_THUMB_HEIGHT_MAX, true));
File.WriteAllBytes("TestGen_250x468_rect.png", ServerCommon.CreateThumbnail(t1, ServerConstants.MIME_TYPE_PNG, MOVIE_THUMB_WIDTH_MAX, MOVIE_THUMB_HEIGHT_MAX, false));
// 縦長・縮小なし
using FileStream t0 = new FileStream(ServerConstants.FOLDER_NAME_SAMPLE_DATA_IMAGES + "Test_43x80.png", FileMode.Open);
File.WriteAllBytes("TestGen_43x80_square.png", ServerCommon.CreateThumbnail(t0, ServerConstants.MIME_TYPE_PNG, MOVIE_THUMB_WIDTH_MAX, MOVIE_THUMB_HEIGHT_MAX, true));
File.WriteAllBytes("TestGen_43x80_rect.png", ServerCommon.CreateThumbnail(t0, ServerConstants.MIME_TYPE_PNG, MOVIE_THUMB_WIDTH_MAX, MOVIE_THUMB_HEIGHT_MAX, false));
}