3.2.5. DMX_START¶
3.2.5.1. Name¶
DMX_START
3.2.5.3. Arguments¶
| int fd | File descriptor returned by a previous call to open(). |
| int request | Equals DMX_START for this command. |
3.2.5.4. 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.
3.2.5.5. 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
Generic Error Codes chapter.
EINVAL |
Invalid argument, i.e. no filtering parameters provided via the DMX_SET_FILTER or DMX_SET_PES_FILTER functions. |
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. |