demux: mp4: add youtube meta

modules/demux/mp4/libmp4.c

@@ -3892,6 +3892,12 @@ static const struct
     { ATOM_rtng,    MP4_ReadBox_Metadata,    ATOM_ilst },
     { ATOM_trkn,    MP4_ReadBox_Metadata,    ATOM_ilst },
     { ATOM_xid_,    MP4_ReadBox_Metadata,    ATOM_ilst },
+    { ATOM_gshh,    MP4_ReadBox_Metadata,    ATOM_ilst }, /* YouTube gs?? */
+    { ATOM_gspm,    MP4_ReadBox_Metadata,    ATOM_ilst },
+    { ATOM_gspu,    MP4_ReadBox_Metadata,    ATOM_ilst },
+    { ATOM_gssd,    MP4_ReadBox_Metadata,    ATOM_ilst },
+    { ATOM_gsst,    MP4_ReadBox_Metadata,    ATOM_ilst },
+    { ATOM_gstd,    MP4_ReadBox_Metadata,    ATOM_ilst },
 
     /* udta */
     { ATOM_0x40PRM, MP4_ReadBox_String,    ATOM_udta },

modules/demux/mp4/libmp4.h

@@ -325,6 +325,12 @@ typedef int64_t stime_t;
 #define ATOM_rtng VLC_FOURCC( 'r', 't', 'n', 'g' )
 #define ATOM_tsel VLC_FOURCC( 't', 's', 'e', 'l' )
 #define ATOM_xid_ VLC_FOURCC( 'x', 'i', 'd', ' ' )
+#define ATOM_gshh VLC_FOURCC( 'g', 's', 'h', 'h' )
+#define ATOM_gspm VLC_FOURCC( 'g', 's', 'p', 'm' )
+#define ATOM_gspu VLC_FOURCC( 'g', 's', 'p', 'u' )
+#define ATOM_gssd VLC_FOURCC( 'g', 's', 's', 'd' )
+#define ATOM_gsst VLC_FOURCC( 'g', 's', 's', 't' )
+#define ATOM_gstd VLC_FOURCC( 'g', 's', 't', 'd' )
 
 #define ATOM_0x40PRM VLC_FOURCC( '@', 'P', 'R', 'M' )
 #define ATOM_0x40PRQ VLC_FOURCC( '@', 'P', 'R', 'Q' )

modules/demux/mp4/meta.c

@@ -95,6 +95,12 @@ static const struct
     { ATOM_flvr,    N_("Encoding Params") },
     { ATOM_vndr,    N_("Vendor") },
     { ATOM_xid_,    N_("Catalog Number") },
+    { ATOM_gshh,    N_("YouTube Host") },
+    { ATOM_gspm,    N_("YouTube Ping Message") },
+    { ATOM_gspu,    N_("YouTube Ping Url") },
+    { ATOM_gssd,    N_("YouTube Source Data") },
+    { ATOM_gsst,    N_("YouTube Start Time") },
+    { ATOM_gstd,    N_("YouTube Track Duration") },
     { 0, "" },
 };