write copyright metadata tag

Originally committed as revision 15276 to svn://svn.ffmpeg.org/ffmpeg/trunk

libavformat/movenc.c

@@ -1225,6 +1225,7 @@ static int mov_write_ilst_tag(ByteIOContext *pb, MOVContext *mov,
     mov_write_string_tag(pb, "\251too", LIBAVFORMAT_IDENT, 1);
     mov_write_string_tag(pb, "\251cmt", s->comment       , 1);
     mov_write_string_tag(pb, "\251gen", s->genre         , 1);
+    mov_write_string_tag(pb, "\251cpy", s->copyright     , 1);
     mov_write_trkn_tag(pb, mov, s);
     return updateSize(pb, pos);
 }
@@ -1321,6 +1322,7 @@ static int mov_write_udta_tag(ByteIOContext *pb, MOVContext *mov,
             mov_write_3gp_udta_tag(pb, s, "gnre", s->genre);
             mov_write_3gp_udta_tag(pb, s, "dscp", s->comment);
             mov_write_3gp_udta_tag(pb, s, "albm", s->album);
+            mov_write_3gp_udta_tag(pb, s, "cprt", s->copyright);
             mov_write_3gp_udta_tag(pb, s, "yrrc", "nil");
         } else if (mov->mode == MODE_MOV) { // the title field breaks gtkpod with mp4 and my suspicion is that stuff is not valid in mp4
             mov_write_string_tag(pb, "\251nam", s->title         , 0);
@@ -1330,6 +1332,7 @@ static int mov_write_udta_tag(ByteIOContext *pb, MOVContext *mov,
             mov_write_string_tag(pb, "\251enc", LIBAVFORMAT_IDENT, 0);
             mov_write_string_tag(pb, "\251des", s->comment       , 0);
             mov_write_string_tag(pb, "\251gen", s->genre         , 0);
+            mov_write_string_tag(pb, "\251cpy", s->copyright     , 0);
         } else {
             /* iTunes meta data */
             mov_write_meta_tag(pb, mov, s);