int64_t duration; ///< duration of the longest track
int found_moov; ///< 'moov' atom has been found
int found_mdat; ///< 'mdat' atom has been found
+ int found_hdlr_mdta; ///< 'hdlr' atom with type 'mdta' has been found
+ char **meta_keys;
+ unsigned meta_keys_count;
DVDemuxContext *dv_demux;
AVFormatContext *dv_fctx;
int isom; ///< 1 if file is ISO Media (mp4/3gp)