added swf_GetJPEGSize() function.

diff --git a/lib/modules/swfbits.c b/lib/modules/swfbits.c
index 70a7729..df8c1c9 100644 (file)
--- a/lib/modules/swfbits.c
+++ b/lib/modules/swfbits.c
@@ -138,6 +138,26 @@ void swf_SetJPEGBits2(TAG * tag,U16 width,U16 height,RGBA* bitmap, int quality)
   swf_SetJPEGBitsFinish(jpeg);
 }
 
+void swf_GetJPEGSize(char * fname, int*width, int*height)
+{ struct jpeg_decompress_struct cinfo;
+  struct jpeg_error_mgr jerr;
+  FILE * fi;
+  *width = 0;
+  *height = 0;
+  cinfo.err = jpeg_std_error(&jerr);
+  jpeg_create_decompress(&cinfo); 
+  if ((fi=fopen(fname,"rb"))==NULL) {
+      fprintf(stderr, "rfxswf: file open error\n");
+      return;
+  }
+  jpeg_stdio_src(&cinfo, fi);
+  jpeg_read_header(&cinfo, TRUE);
+  *width = cinfo.image_width;
+  *height = cinfo.image_height;
+  jpeg_destroy_decompress(&cinfo);
+  fclose(fi);
+}
+
 int swf_SetJPEGBits(TAG * t,char * fname,int quality)
 { struct jpeg_decompress_struct cinfo;
   struct jpeg_error_mgr jerr;

diff --git a/lib/rfxswf.h b/lib/rfxswf.h
index 45ac72a..47baa85 100644 (file)
--- a/lib/rfxswf.h
+++ b/lib/rfxswf.h
@@ -669,6 +669,8 @@ int swf_SetJPEGBitsLines(JPEGBITS * jpegbits,U8 ** data,int n);
 int swf_SetJPEGBitsLine(JPEGBITS * jpegbits,U8 * data);
 int swf_SetJPEGBitsFinish(JPEGBITS * jpegbits);
 
+void swf_GetJPEGSize(char * fname, int*width, int*height);
+
 int swf_SetJPEGBits(TAG * t,char * fname,int quality);
 void swf_SetJPEGBits2(TAG * t,U16 width,U16 height,RGBA * bitmap,int quality);
 int swf_SetJPEGBits3(TAG * tag,U16 width,U16 height,RGBA* bitmap, int quality);