make HTTP MOVED messages also work in ffmpeg (302 is essentially the same as 303).

patch by "Ronald S. Bultje" % rbultje A ronald P bitfreak P net%
original thread:
Date: Mar 4, 2007 1:21 AM
Subject: [Ffmpeg-devel] http move


git-svn-id: file:///var/local/repositories/ffmpeg/trunk@8219 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

libavformat/http.c

@@ -96,7 +96,7 @@ static int http_open_cnx(URLContext *h)
     s->hd = hd;
     if (http_connect(h, path, hoststr, auth, &location_changed) < 0)
         goto fail;
-    if (s->http_code == 303 && location_changed == 1) {
+    if ((s->http_code == 302 || s->http_code == 303) && location_changed == 1) {
         /* url moved, get next */
         url_close(hd);
         if (redirects++ >= MAX_REDIRECTS)