| .. -*- coding: utf-8; mode: rst -*- |
| |
| .. _VIDEO_GET_NAVI: |
| |
| ============== |
| VIDEO_GET_NAVI |
| ============== |
| |
| Name |
| ---- |
| |
| VIDEO_GET_NAVI |
| |
| |
| Synopsis |
| -------- |
| |
| .. cpp:function:: int ioctl(fd, int request = VIDEO_GET_NAVI , video_navi_pack_t *navipack) |
| |
| |
| 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 VIDEO_GET_NAVI for this command. |
| |
| - .. row 3 |
| |
| - video_navi_pack_t \*navipack |
| |
| - PCI or DSI pack (private stream 2) according to section ??. |
| |
| |
| Description |
| ----------- |
| |
| This ioctl returns navigational information from the DVD stream. This is |
| especially needed if an encoded stream has to be decoded by the |
| hardware. |
| |
| |
| 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:: |
| :header-rows: 0 |
| :stub-columns: 0 |
| |
| |
| - .. row 1 |
| |
| - ``EFAULT`` |
| |
| - driver is not able to return navigational information |