.. -*- coding: utf-8; mode: rst -*- .. _DMX_GET_STC: =========== DMX_GET_STC =========== Name ---- DMX_GET_STC Synopsis -------- .. c:function:: int ioctl( int fd, DMX_GET_STC, struct dmx_stc *stc) :name: DMX_GET_STC Arguments --------- ``fd`` File descriptor returned by :c:func:`open() `. ``stc`` Pointer to the location where the stc is to be stored. Description ----------- This ioctl call returns the current value of the system time counter (which is driven by a PES filter of type DMX_PES_PCR). Some hardware supports more than one STC, so you must specify which one by setting the num field of stc before the ioctl (range 0...n). The result is returned in form of a ratio with a 64 bit numerator and a 32 bit denominator, so the real 90kHz STC value is stc->stc / stc->base . Return Value ------------ On success 0 is returned, on error -1 and the ``errno`` variable is set appropriately. The generic error codes are described at the :ref:`Generic Error Codes ` chapter. .. flat-table:: :header-rows: 0 :stub-columns: 0 - .. row 1 - ``EINVAL`` - Invalid stc number. tion> net-next plumbingsTobias Klauser

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