simplify

Originally committed as revision 12346 to svn://svn.ffmpeg.org/ffmpeg/trunk

libavformat/asf.c

@@ -389,7 +389,7 @@ static int asf_read_header(AVFormatContext *s, AVFormatParameters *ap)
                         get_str16_nolen(pb, name_len, name, sizeof(name));
                         value_type = get_le16(pb);
                         value_len = get_le16(pb);
-                        if ((value_type == 0) || (value_type == 1)) // unicode or byte
+                        if (value_type <= 1) // unicode or byte
                         {
                                 if     (!strcmp(name,"WM/AlbumTitle")) get_str16_nolen(pb, value_len, s->album, sizeof(s->album));
                                 else if(!strcmp(name,"WM/Genre"     )) get_str16_nolen(pb, value_len, s->genre, sizeof(s->genre));
@@ -410,7 +410,7 @@ static int asf_read_header(AVFormatContext *s, AVFormatParameters *ap)
                                 }
                                 else url_fskip(pb, value_len);
                         }
-                        if ((value_type >= 2) && (value_type <= 5)) // boolean or DWORD or QWORD or WORD
+                        else if (value_type <= 5) // boolean or DWORD or QWORD or WORD
                         {
                                 value_num= get_value(pb, value_type);
                                 if (!strcmp(name,"WM/Track"      ) && s->track == 0) s->track = value_num + 1;