X-Git-Url: https://granicus.if.org/sourcecode?a=blobdiff_plain;f=coders%2Fjpeg.c;h=d28d4583874daeac25de165241f37092b2e29227;hb=787d43596c4afbd97079e154225c49e47da6b161;hp=51a64e948db2a05a7ed0f013672fde627255f1b8;hpb=a0511736dba65a9fa6a5eed2d90caea727b12390;p=imagemagick

diff --git a/coders/jpeg.c b/coders/jpeg.c
index 51a64e948..d28d45838 100644
--- a/coders/jpeg.c
+++ b/coders/jpeg.c
@@ -811,7 +811,7 @@ static void JPEGSetImageSamplingFactor(struct jpeg_decompress_struct *jpeg_info,
         jpeg_info->comp_info[2].v_samp_factor,
         jpeg_info->comp_info[3].h_samp_factor,
         jpeg_info->comp_info[3].v_samp_factor);
-        break;
+      break;
     }
     case JCS_GRAYSCALE:
     {
@@ -1052,6 +1052,36 @@ static Image *ReadJPEGImage(const ImageInfo *image_info,
       if (IsMagickTrue(option) != MagickFalse)
         jpeg_info.do_block_smoothing=MagickTrue;
     }
+  option=GetImageOption(image_info,"jpeg:dct-method");
+  if (option != (const char *) NULL)
+    switch (*option)
+    {
+      case 'D':
+      case 'd':
+      {
+        if (LocaleCompare(option,"default") == 0)
+          jpeg_info.dct_method=JDCT_DEFAULT;
+        break;
+      }
+      case 'F':
+      case 'f':
+      {
+        if (LocaleCompare(option,"fastest") == 0)
+          jpeg_info.dct_method=JDCT_FASTEST;
+        if (LocaleCompare(option,"float") == 0)
+          jpeg_info.dct_method=JDCT_FLOAT;
+        break;
+      }
+      case 'I':
+      case 'i':
+      {
+        if (LocaleCompare(option,"ifast") == 0)
+          jpeg_info.dct_method=JDCT_IFAST;
+        if (LocaleCompare(option,"islow") == 0)
+          jpeg_info.dct_method=JDCT_ISLOW;
+        break;
+      }
+    }
   option=GetImageOption(image_info,"jpeg:fancy-upsampling");
   if (option != (const char *) NULL)
     {