mp4: improve debug and clean

modules/demux/mp4/libmp4.c

@@ -756,7 +756,7 @@ static int MP4_ReadBox_hdlr( stream_t *p_stream, MP4_Box_t *p_box )
     }
 
 #ifdef MP4_VERBOSE
-        msg_Dbg( p_stream, "read box: \"hdlr\" handler type %4.4s name %s",
+        msg_Dbg( p_stream, "read box: \"hdlr\" handler type: \"%4.4s\" name: \"%s\"",
                    (char*)&p_box->data.p_hdlr->i_handler_type,
                    p_box->data.p_hdlr->psz_name );
 

modules/demux/mp4/libmp4.h

@@ -19,10 +19,10 @@
  * along with this program; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  *****************************************************************************/
+
 #ifndef _VLC_MP4_H
 #define _VLC_MP4_H 1
 
-
 #define FOURCC_uuid VLC_FOURCC( 'u', 'u', 'i', 'd' )
 
 #define FOURCC_ftyp VLC_FOURCC( 'f', 't', 'y', 'p' )
@@ -1082,7 +1082,6 @@ void MP4_BoxFree( stream_t *, MP4_Box_t *p_box );
  *****************************************************************************/
 void MP4_BoxDumpStructure( stream_t *p_input, MP4_Box_t *p_box );
 
-
 /*****************************************************************************
  * MP4_BoxGet: find a box given a path relative to p_box
  *****************************************************************************
@@ -1105,6 +1104,7 @@ MP4_Box_t *MP4_BoxGet( MP4_Box_t *p_box, const char *psz_fmt, ... );
  *****************************************************************************/
 int MP4_BoxCount( MP4_Box_t *p_box, const char *psz_fmt, ... );
 
+/* Internal functions exposed for MKV demux */
 int MP4_ReadBoxCommon( stream_t *p_stream, MP4_Box_t *p_box );
 int MP4_ReadBox_sample_vide( stream_t *p_stream, MP4_Box_t *p_box );
 void MP4_FreeBox_sample_vide( MP4_Box_t *p_box );