ffserver.c:3159: error: Uninitialized Value
  The value read from h was never initialized.

ffserver.c:3159:13: 
3157.     if (av_write_header(ctx) < 0) {
3158.     fail:
3159.         if (h)
                  ^
3160.             url_close(h);
3161.         av_free(ctx);
