Question about the livexml1.php endpoint

There is no documentation as to how the encoded path should be decoded for use. How would I go about this?
Example response from url https://live.glidernet.org/livexml1.php?id=1f6e1bd2:
<?xml version="1.0" encoding="UTF-8"?>
<markers>
<m e="0" i="1f6e1bd2" r="odq{HpmiB???C?BC?B??B?>??C>a@p@m@bAaAzAuCjE_AbByD`Fg@b@e@^i@\g@Zk@RsA\sD\m@?u@@_EKq@@cBDaEd@q@Nq@Lq@Bq@??Bq@?CCm@C??u@CcBIqEGq@@?@q@Hm@L_B\o@L?@i@Pq@NyAb@k@P?@k@R?Cm@V?Cg@ReCt@g@N?B}Bl@?@kHfBqErAsA\g@NA?sAd@c@R??a@ZY\Sj@Ct@H\|@`@t@b@l@p@d@t@VbCD~@U`C{A?BzBcCfEyIzAsD\|AqDl@{Aj@{Al@_B?@n@{Ah@aBfD{J?>@?j@wA`CiG?Cj@sAh@_B~BuGpAuDvA}DtAwD?Bl@wAjCqFx@_AhDkCv@a@v@SpBWbDO@@nEZ?C?BxA\pAf@lAl@b@^\|A\|A\`@v@`A`@`@X^Xd@nAbBt@bAX`@z@dA`BbB\`@xBtCz@nA?@`@f@`ArAfBvB`@f@\j@^f@`@l@pCfEB?lBrCp@nA~@zBDh@Db@?@E`@B?I`@QXSLUD[C]C?CyAiAYe@]u@u@sBU}@C?W}@oAwDB?C?O_AC?kA}Dw@yBC?Y_AC?]{@_AsBYq@w@gB?A]m@[m@{@yAB?C?w@wAC?aAoA?Aa@c@{EiEc@]C@c@YiAg@aAWa@AsDl@?Bw@j@YR?BcAdAyAtB?CK\a@t@u@dA??_@t@?AMd@?A?@?A?@Cf@Aj@@?A?@?Bj@?BLj@Tl@?BlBfB?B`B`@?AzC`@bBPpHv@bBR`BPp@LjCl@f@NpAf@lAj@f@VhDbB?AvEbCrAx@?@fAdA`@d@vBzAj@ZC?f@`@`@`@?@^`@Rl@Ll@Bl@?j@Mf@?COZ[L]D]IB?C?aAk@_AmA_@u@y@gCYgAYkAuBkG]s@_@o@y@gBA?{@qAa@_@]a@a@M]AYHO\G\?b@F`@Jd@?C?B?CdAhB\`@bAbAb@\nA~@j@b@f@Zf@`@h@^f@d@`@^?A?@B?C?f@b@\|BtC?@d@b@?AzAxBvAfCC?Rp@Lv@?l@Gl@If@O`@C??CSVA?WD]C?B{@a@C??>eBkBa@s@sBwF]aAu@kCu@kC?A?@UgAcDcOeAuEu@uBBC]o@]g@oAyAYS]C?C@?]CUB?BSHSPMT?BC\?`@?fAFf@Hf@^lAB?C?Vd@z@fA\d@b@`@d@`@\|DdDrBfBB@b@\jAfAhAhAB?b@d@?C?BdAfA?@?Af@d@lBlB\f@`@d@v@rAVj@r@nCB?Nl@Pr@C?Rt@Nv@Rz@Pz@^xBPz@@?A?b@nBB?C?Nt@?Bd@nDv@fHH~@XrBLz@`@nBXpBLz@^xD\\|B`@bCR~@N~@R~@j@xB`ArDj@vBVx@Tx@j@tB?AV\|@Tz@P\|@T~@n@zBT\|@Z~@T`At@~B\z@\x@p@~BxAvFR\|@C?Vx@f@vBVz@Rx@h@nB?BPt@Tx@Rr@j@jB~@hDf@vB?B@?A?h@\|BVx@R~@pBzHRbAX`AV\|@p@fCT`ApBfIC?z@zDd@xBb@vB`@xBR~@R\|@f@~Bz@\|DNz@X\|@R~@?CRz@Lv@R\|@N~@z@vDV~@j@\|BC?VbAT\|@V~@R~@l@\|BV`A?A?@?ARx@?@Rz@f@zBNx@Lt@R~@Lz@Jz@Px@C?\vBL~@z@tHTnBLv@Dr@B?RvBB?Dz@L~@^`EL~@R`C?BHt@Hv@Lp@Hp@Jj@Fl@Hp@J\|AA?RjCH`BC?Dp@A?Dt@Dp@Ft@Hz@C?Hz@b@vBB?Rz@Vt@?>??h@hBj@\|AVn@nBjDd@b@nAz@xAj@b@VtAf@xA^p@LjEHz@CpBMv@Mz@KlDe@z@IrBWz@IjMiBpBa@z@O@?tBe@z@UtDyA~@a@v@a@~@[nDeAx@UdDcApBg@nBk@x@Mr@Mp@CB?t@Av@EzBQC?z@E~@A?AnBTj@`@B?b@b@Xj@B?C?Ll@?@?f@E`@QPUHWEWWA?sAcBB?_AyA_AaB]o@}@}AaBkC]e@eA_A}@Y{@Oy@>SFUHg@^y@\|@c@l@?BiA\|A}@v@{@hASXy@nAm@j@WRcBn@YHYHo@VeA`@aAf@WHUHWHm@VWLk@RmBlA{@\|@yArAqAXe@AeBIkBWaAOa@M]S]O_@I]Q_ASw@?C?YB[DwBB}@C]Cy@Cw@HWPO\Ed@?j@Dl@?ARp@rBfBxCl@rB?\|Dc@bGmA`C{@fEgB`CoAdCmAdAc@dCeA\|@a@~@WdC{@C?\|BiAB@zBoAz@e@~DoB`GeC@?`C_AjE_BdA[B?\|@m@A?fCmAC?hCgA?>fC}A?ClI}EfCmA\|BmAhI_D`EoA`AUfEgArMkD\|@]rFkBvBm@lD}@nDg@z@Az@?vBDhDXlBPhB\t@PfBh@C?\|Ax@?@p@\f@d@?C`CzBfCtBB?`CbCb@p@bB`D\t@dC`EfAnAvBlBj@`@nAfAtAhAf@j@n@b@f@d@dFxDC?l@`@j@f@f@l@\n@C?Vt@Hz@Cn@?BOb@WV??_@Ha@CC?c@c@_A}BUuAe@aEKgBMgBM_Bg@eHK{Aa@sDSmAoAeEC?]q@}DkFyA_A]G]O{@W}@Y?C_A_@?@gB{@gAa@iASc@Ee@Ii@G@?cEcAa@Oc@Q_Am@_B_AuAC[?{@BYC]Iu@ESDOTC?Bd@Df@?CRb@?@bA`Ah@Zt@R?AhBRz@Hz@@tBFvBHz@FdDr@p@RC?`Bx@fExB@?`BnAh@f@?B`GhG?@fAtAz@xAZd@Xf@Nf@Lj@Bj@?CGb@?BK\WLw@KW]Yi@a@m@uAcD@CA?sAgD]w@sA{C_@o@[g@B?sBoC]Y{DmB_@Qa@Wa@a@_@a@cAy@aAc@_Bg@eCg@?@a@OcB]YCa@GaA?YEa@B?>YF@?YHk@j@B?CC]F?>uA?oAG]AW?yB]WCS?S??BS@OP?@@?EV?`@C?H^Pb@T^tB\|A?CnBVzBA?AdAIfEq@\|D]hD[v@Ex@Bv@CfBHp@Rh@VtBxAnBhBxAz@lDxCb@f@dAfA`@`@Vb@Dd@Cf@?AU\[EB?C?]S_@g@?B}AwDa@o@eAsAc@Y?C{@k@B?[C?BSDIZB`@H\p@bAjAdA?CfBl@?BbBj@tAx@?B\|An@l@RxAj@A?h@Rf@R?BpBlA`@X^`@Z`@^\vApBh@rAPn@Df@Dh@A??A?f@QRYFB?WQY][k@B?uA{C[{@}@qB{@_BcAsABC_AqAwBuBkAgBm@_AW[YU@?YGSBC?SLI\A\C`@Df@B`@V\|AJn@?Bf@hBRt@rCpJb@pB?Cz@bDNt@Pp@@?d@lBC?t@hDRx@pAjGf@~C\dBt@\|Cp@tC`@zAXbBLt@^`B\nBn@~Ez@lITlBVlBHp@Lx@h@zEVrBHn@NfB?@f@dEz@nFBp@Eh@?Au@b@B?C?a@WA?[s@UeA[wAYiEWqIIcFKuL?yL?kBQwHScEE{AM_BOuAI}Aa@oDm@eGc@kDC?k@}CeAyEB?u@kCs@_CcAwBaAcBuC_DkAeA@?sBaBg@[iAw@mBsABB{@e@u@g@m@e@eAm@q@IYG[I{@k@{AsA]Wa@SaCyAoAk@WC?BSHIREX?\?@BA@`@Pd@?Cr@bA?A?@lA~@zAp@tCp@bBXjBZtCt@r@R`B`@l@VxFlBp@Rj@`@?Bb@\`@b@Xl@Hn@?C?l@C`@S`@?CUL[B]IcB{A?B}B{Ea@u@_@q@a@k@BCaBgC_@k@}AyBaCoBoCk@gFwA]KcASmBg@mBWwBCcBB_BD_AL_@D_Hd@Y>oAH?BiBX?AwATw@?_AU}BsAcBkAYMC?Y?[HOVE`@?f@@BA?Dl@Vd@C?hBrBbBZB?v@G~Bk@v@o@rBiBz@g@x@Wv@Cl@Hj@P`@XXf@CCLj@Df@A?@?St@OLYD?AsAk@eAm@B?gBcAa@[]SA?]Y{@u@?B]Ya@WyAiAyAy@]SwBk@aAW_CS{@?uAG"/>
</markers>
glidernet / ogn-live

Question about the livexml1.php endpoint #94
