1 .. -*- coding: utf-8; mode: rst -*-
18 .. c:function:: int ioctl( int fd, DMX_SET_FILTER, struct dmx_sct_filter_params *params)
25 File descriptor returned by :c:func:`open() <dvb-dmx-open>`.
29 Pointer to structure containing filter parameters.
35 This ioctl call sets up a filter according to the filter and mask
36 parameters provided. A timeout may be defined stating number of seconds
37 to wait for a section to be loaded. A value of 0 means that no timeout
38 should be applied. Finally there is a flag field where it is possible to
39 state whether a section should be CRC-checked, whether the filter should
40 be a ”one-shot” filter, i.e. if the filtering operation should be
41 stopped after the first section is received, and whether the filtering
42 operation should be started immediately (without waiting for a
43 DMX_START ioctl call). If a filter was previously set-up, this filter
44 will be canceled, and the receive buffer will be flushed.
50 On success 0 is returned, on error -1 and the ``errno`` variable is set
51 appropriately. The generic error codes are described at the
52 :ref:`Generic Error Codes <gen-errors>` chapter.