| .. -*- coding: utf-8; mode: rst -*- |
| |
| .. _DMX_START: |
| |
| ========= |
| DMX_START |
| ========= |
| |
| NAME |
| ---- |
| |
| DMX_START |
| |
| SYNOPSIS |
| -------- |
| |
| .. c:function:: int ioctl( int fd, int request = DMX_START) |
| |
| |
| ARGUMENTS |
| --------- |
| |
| .. flat-table:: |
| :header-rows: 0 |
| :stub-columns: 0 |
| |
| |
| - .. row 1 |
| |
| - int fd |
| |
| - File descriptor returned by a previous call to open(). |
| |
| - .. row 2 |
| |
| - int request |
| |
| - Equals DMX_START for this command. |
| |
| |
| DESCRIPTION |
| ----------- |
| |
| This ioctl call is used to start the actual filtering operation defined |
| via the ioctl calls DMX_SET_FILTER or DMX_SET_PES_FILTER. |
| |
| |
| 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 <gen-errors>` chapter. |
| |
| |
| |
| .. flat-table:: |
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| :stub-columns: 0 |
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| - .. row 1 |
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| - ``EINVAL`` |
| |
| - Invalid argument, i.e. no filtering parameters provided via the |
| DMX_SET_FILTER or DMX_SET_PES_FILTER functions. |
| |
| - .. row 2 |
| |
| - ``EBUSY`` |
| |
| - This error code indicates that there are conflicting requests. |
| There are active filters filtering data from another input source. |
| Make sure that these filters are stopped before starting this |
| filter. |