This ioctl call is used to start the actual filtering operation defined via the ioctl calls DMX_SET_FILTER or DMX_SET_PES_FILTER.
188.8.131.52. Return Value¶
On success 0 is returned.
On error -1 is returned, and the
errno variable is set
Invalid argument, i.e. no filtering parameters provided via the DMX_SET_FILTER or DMX_SET_PES_FILTER ioctls.
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.
The generic error codes are described at the Generic Error Codes chapter.