made more quiet

diff --git a/lib/png.c b/lib/png.c
index 739b895..e793367 100644 (file)
--- a/lib/png.c
+++ b/lib/png.c
@@ -99,7 +99,7 @@ static int png_read_header(FILE*fi, struct png_header*header)
     unsigned char*data;
     fread(head2,8,1,fi);
     if(strncmp((const char*)head,(const char*)head2,4))
-       return 0;
+       return 0; // not a png file
     
     while(png_read_chunk(&id, &len, &data, fi))
     {
@@ -448,7 +448,6 @@ EXPORT int getPNGdimensions(const char*sname, int*destwidth, int*destheight)
        return 0;
     }
     if(!png_read_header(fi, &header)) {
-       fprintf(stderr, "Error reading header from file %s\n", sname);
        return 0;
     }