ftypisom isomiso2avc1mp41 'moov lmvhd , @ 魌rak \tkhd ,` @ 8 $edts elst ,` lmdia mdhd 2 8 U -hdlr vide VideoHandler minf vmhd $dinf dref url 譻tbl 梥tsd 嘺vc1 8 H H 1avcCd gd @x'鍎