demux: libmp4: add xid_ atom

modules/demux/mp4/libmp4.c

@@ -3719,6 +3719,7 @@ static const struct
     { ATOM_gnre,    MP4_ReadBox_Metadata,     MP4_FreeBox_Common,  ATOM_ilst },
     { ATOM_rtng,    MP4_ReadBox_Metadata,     MP4_FreeBox_Common,  ATOM_ilst },
     { ATOM_trkn,    MP4_ReadBox_Metadata,     MP4_FreeBox_Common,  ATOM_ilst },
+    { ATOM_xid_,    MP4_ReadBox_Metadata,     MP4_FreeBox_Common,  ATOM_ilst },
 
     /* udta */
     { ATOM_0xa9ART, MP4_ReadBox_0xa9xxx,      MP4_FreeBox_0xa9xxx, ATOM_udta },

modules/demux/mp4/libmp4.h

@@ -289,6 +289,7 @@
 #define ATOM_cnID VLC_FOURCC( 'c', 'n', 'I', 'D' )
 #define ATOM_covr VLC_FOURCC( 'c', 'o', 'v', 'r' )
 #define ATOM_rtng VLC_FOURCC( 'r', 't', 'n', 'g' )
+#define ATOM_xid_ VLC_FOURCC( 'x', 'i', 'd', ' ' )
 
 #define ATOM_chap VLC_FOURCC( 'c', 'h', 'a', 'p' )
 #define ATOM_SDLN VLC_FOURCC( 'S', 'D', 'L', 'N' )

modules/demux/mp4/meta.c

@@ -90,6 +90,7 @@ static const struct
     { ATOM_0xa9xpd, N_("Executive Producer") },
     { ATOM_aART,    N_("Album Artist") },
     { ATOM_vndr,    N_("Vendor") },
+    { ATOM_xid_,    N_("Catalog Number") },
     { 0, "" },
 };