[martinxp]

mas pravdu v IS.mp4 (init.mp4) je kid same nuly coz je problem.

              [schm] size=12+8
                  scheme_type = cenc
                  scheme_version = 65536
                [schi] size=8+32
                  [tenc] size=12+20
                    default_isProtected = 1
                    default_Per_Sample_IV_Size = 8
                    default_KID = [00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00]

mp4s
  [pssh] size=12+40
    system_id = [ed ef 8b a9 79 d6 4a ce a3 c8 27 dc d5 1d 21 ed]
    data_size = 20
[mdat] size=8+15494
pokazde stejne .