Initialize correctly optind.

Patch by Eduardo Bragatto, his name at his surname dot com

Thread http://lists.mplayerhq.hu/pipermail/ffmpeg-devel/2008-January/039835.html

Originally committed as revision 11483 to svn://svn.ffmpeg.org/ffmpeg/trunk

vhook/drawtext.c

@@ -172,7 +172,7 @@ int Configure(void **ctxp, int argc, char *argv[])
     ci->outline = 0;
     ci->text_height = 0;
 
-    optind = 0;
+    optind = 1;
     while ((c = getopt(argc, argv, "f:t:T:x:y:s:c:C:bo")) > 0) {
       switch (c) {
       case 'f':

vhook/fish.c

@@ -124,7 +124,7 @@ int Configure(void **ctxp, int argc, char *argv[])
     *ctxp = av_mallocz(sizeof(ContextInfo));
     ci = (ContextInfo *) *ctxp;
 
-    optind = 0;
+    optind = 1;
 
     ci->dir = "/tmp";
     ci->threshold = 100;

vhook/imlib2.c

@@ -160,7 +160,7 @@ int Configure(void **ctxp, int argc, char *argv[])
     ci->expr_x = "0.0";
     ci->expr_y = "0.0";
 
-    optind = 0;
+    optind = 1;
 
     /* Use ':' to split FONTPATH */
     if (fp)