Lines Matching +full:open +full:- +full:source
1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later OR GPL-2.0
40 --------------
45 .. code-block:: c
56 .. flat-table::
57 :header-rows: 0
58 :stub-columns: 0
60 - ..
62 - ``VIDEO_FORMAT_4_3``
64 - Select 4:3 format.
66 - ..
68 - ``VIDEO_FORMAT_16_9``
70 - Select 16:9 format.
72 - ..
74 - ``VIDEO_FORMAT_221_1``
76 - Select 2.21:1 format.
89 -----
93 ---------------------
98 .. code-block:: c
109 .. flat-table::
110 :header-rows: 0
111 :stub-columns: 0
113 - ..
115 - ``VIDEO_PAN_SCAN``
117 - Use pan and scan format.
119 - ..
121 - ``VIDEO_LETTER_BOX``
123 - Use letterbox format.
125 - ..
127 - ``VIDEO_CENTER_CUT_OUT``
129 - Use center cut out format.
140 -----
144 ------------
149 .. code-block:: c
160 .. flat-table::
161 :header-rows: 0
162 :stub-columns: 0
164 - ..
166 - ``int w``
168 - Video width in pixels.
170 - ..
172 - ``int h``
174 - Video height in pixels.
176 - ..
178 - `video_format_t`_ ``aspect_ratio``
180 - Aspect ratio.
189 -----
193 ---------------------
198 .. code-block:: c
208 .. flat-table::
209 :header-rows: 0
210 :stub-columns: 0
212 - ..
214 - ``VIDEO_SOURCE_DEMUX``
216 - :cspan:`1` Select the demux as the main source.
218 - ..
220 - ``VIDEO_SOURCE_MEMORY``
222 - If this source is selected, the stream
229 The video stream source is set through the `VIDEO_SELECT_SOURCE`_ call
231 from an internal (demuxer) or external (user write) source.
233 frontend or the DVR device) as the source of the video stream. If
238 -----
242 ------------------
247 .. code-block:: c
258 .. flat-table::
259 :header-rows: 0
260 :stub-columns: 0
262 - ..
264 - ``VIDEO_STOPPED``
266 - Video is stopped.
268 - ..
270 - ``VIDEO_PLAYING``
272 - Video is currently playing.
274 - ..
276 - ``VIDEO_FREEZED``
278 - Video is frozen.
287 -----
291 --------------------
296 .. code-block:: c
321 .. flat-table::
322 :header-rows: 0
323 :stub-columns: 0
325 - ..
327 - ``__u32 cmd``
329 - `Decoder command`_
331 - ..
333 - ``__u32 flags``
335 - Flags for the `Decoder command`_.
337 - ..
339 - ``struct stop``
341 - ``__u64 pts``
343 - MPEG PTS
345 - ..
347 - :rspan:`5` ``stuct play``
349 - :rspan:`4` ``__s32 speed``
351 - 0 or 1000 specifies normal speed,
353 - ..
355 - 1: specifies forward single stepping,
357 - ..
359 - -1: specifies backward single stepping,
361 - ..
363 - >1: playback at speed / 1000 of the normal speed
365 - ..
367 - <-1: reverse playback at ( -speed / 1000 ) of the normal speed.
369 - ..
371 - ``__u32 format``
373 - `Play input formats`_
375 - ..
377 - ``__u32 data[16]``
379 - Reserved
388 -----
392 -------------------------------------
397 .. code-block:: c
420 .. flat-table::
421 :header-rows: 0
422 :stub-columns: 0
424 - ..
426 - :rspan:`3` _`Decoder command`
428 - ``VIDEO_CMD_PLAY``
430 - Start playback.
432 - ..
434 - ``VIDEO_CMD_STOP``
436 - Stop playback.
438 - ..
440 - ``VIDEO_CMD_FREEZE``
442 - Freeze playback.
444 - ..
446 - ``VIDEO_CMD_CONTINUE``
448 - Continue playback after freeze.
450 - ..
452 - Flags for ``VIDEO_CMD_FREEZE``
454 - ``VIDEO_CMD_FREEZE_TO_BLACK``
456 - Show black picture on freeze.
458 - ..
460 - :rspan:`1` Flags for ``VIDEO_CMD_STOP``
462 - ``VIDEO_CMD_STOP_TO_BLACK``
464 - Show black picture on stop.
466 - ..
468 - ``VIDEO_CMD_STOP_IMMEDIATELY``
470 - Stop immediately, without emptying buffers.
472 - ..
474 - :rspan:`1` _`Play input formats`
476 - ``VIDEO_PLAY_FMT_NONE``
478 - The decoder has no special format requirements
480 - ..
482 - ``VIDEO_PLAY_FMT_GOP``
484 - The decoder requires full GOPs
486 - ..
488 - :rspan:`3` Field order
490 - ``VIDEO_VSYNC_FIELD_UNKNOWN``
492 - FIELD_UNKNOWN can be used if the hardware does not know
494 (i.e. non-interlaced) field.
496 - ..
498 - ``VIDEO_VSYNC_FIELD_ODD``
500 - Vsync is for an odd field.
502 - ..
504 - ``VIDEO_VSYNC_FIELD_EVEN``
506 - Vsync is for an even field.
508 - ..
510 - ``VIDEO_VSYNC_FIELD_PROGRESSIVE``
512 - progressive (i.e. non-interlaced)
515 -----
519 -----------
524 .. code-block:: c
543 .. flat-table::
544 :header-rows: 0
545 :stub-columns: 0
547 - ..
549 - :rspan:`4` ``__s32 type``
551 - :cspan:`1` Event type.
553 - ..
555 - ``VIDEO_EVENT_SIZE_CHANGED``
557 - Size changed.
559 - ..
561 - ``VIDEO_EVENT_FRAME_RATE_CHANGED``
563 - Framerate changed.
565 - ..
567 - ``VIDEO_EVENT_DECODER_STOPPED``
569 - Decoder stopped.
571 - ..
573 - ``VIDEO_EVENT_VSYNC``
575 - Vsync occurred.
577 - ..
579 - ``long timestamp``
581 - :cspan:`1` MPEG PTS at occurrence.
583 - ..
585 - :rspan:`2` ``union u``
587 - `video_size_t`_ size
589 - Resolution and aspect ratio of the video.
591 - ..
593 - ``unsigned int frame_rate``
595 - in frames per 1000sec
597 - ..
599 - ``unsigned char vsync_field``
601 - | unknown / odd / even / progressive
611 -----
615 ------------
623 .. code-block:: c
636 .. flat-table::
637 :header-rows: 0
638 :stub-columns: 0
640 - ..
642 - :rspan:`2` ``int video_blank``
644 - :cspan:`1` Show blank video on freeze?
646 - ..
648 - TRUE ( != 0 )
650 - Blank screen when freeze.
652 - ..
654 - FALSE ( == 0 )
656 - Show last decoded frame.
658 - ..
660 - `video_play_state_t`_ ``play_state``
662 - Current state of playback.
664 - ..
666 - `video_stream_source_t`_ ``stream_source``
668 - Current source (demux/memory).
670 - ..
672 - `video_format_t`_ ``video_format``
674 - Current aspect ratio of stream.
676 - ..
678 - `video_displayformat_t`_ ``display_format``
680 - Applied cropping mode.
689 to the selected source for the video stream. It can come either from the
693 case the source video format is not the same as the format of the output
697 -----
701 -------------------
706 .. code-block:: c
716 .. flat-table::
717 :header-rows: 0
718 :stub-columns: 0
720 - ..
722 - ``char *iFrame``
724 - Pointer to a single iframe in memory.
726 - ..
728 - ``int32_t size``
730 - Size of the iframe.
736 An I-frame displayed via the `VIDEO_STILLPICTURE`_ call is passed on
740 -----
744 ------------------
749 .. code-block:: c
760 .. flat-table::
761 :header-rows: 0
762 :stub-columns: 0
764 - ..
766 - ``VIDEO_CAP_MPEG1``
768 - :cspan:`1` The hardware can decode MPEG1.
770 - ..
772 - ``VIDEO_CAP_MPEG2``
774 - The hardware can decode MPEG2.
776 - ..
778 - ``VIDEO_CAP_SYS``
780 - The video device accepts system stream.
782 You still have to open the video and the audio device
785 - ..
787 - ``VIDEO_CAP_PROG``
789 - The video device accepts program stream.
791 You still have to open the video and the audio device
801 -----
809 ----------
816 .. code-block:: c
823 .. flat-table::
824 :header-rows: 0
825 :stub-columns: 0
827 - ..
829 - ``int fd``
831 - :cspan:`1` File descriptor returned by a previous call
832 to `open()`_.
834 - ..
836 - ``int request``
838 - :cspan:`1` Equals ``VIDEO_STOP`` for this command.
840 - ..
842 - :rspan:`2` ``int mode``
844 - :cspan:`1` Indicates how the screen shall be handled.
846 - ..
848 - TRUE ( != 0 )
850 - Blank screen when stop.
852 - ..
854 - FALSE ( == 0 )
856 - Show last decoded frame.
874 On success 0 is returned, on error -1 and the ``errno`` variable is set
876 :ref:`Generic Error Codes <gen-errors>` chapter.
879 -----
883 ----------
890 .. code-block:: c
897 .. flat-table::
898 :header-rows: 0
899 :stub-columns: 0
901 - ..
903 - ``int fd``
905 - :cspan:`1` File descriptor returned by a previous call
906 to `open()`_.
908 - ..
910 - ``int request``
912 - Equals ``VIDEO_PLAY`` for this command.
924 from the selected source.
929 On success 0 is returned, on error -1 and the ``errno`` variable is set
931 :ref:`Generic Error Codes <gen-errors>` chapter.
934 -----
938 ------------
945 .. code-block:: c
952 .. flat-table::
953 :header-rows: 0
954 :stub-columns: 0
956 - ..
958 - ``int fd``
960 - :cspan:`1` File descriptor returned by a previous call
961 to `open()`_.
963 - ..
965 - ``int request``
967 - Equals ``VIDEO_FREEZE`` for this command.
989 On success 0 is returned, on error -1 and the ``errno`` variable is set
991 :ref:`Generic Error Codes <gen-errors>` chapter.
994 -----
998 --------------
1005 .. code-block:: c
1012 .. flat-table::
1013 :header-rows: 0
1014 :stub-columns: 0
1016 - ..
1018 - ``int fd``
1020 - :cspan:`1` File descriptor returned by a previous call
1021 to `open()`_.
1023 - ..
1025 - ``int request``
1027 - Equals ``VIDEO_CONTINUE`` for this command.
1044 On success 0 is returned, on error -1 and the ``errno`` variable is set
1046 :ref:`Generic Error Codes <gen-errors>` chapter.
1049 -----
1053 -------------------
1060 .. code-block:: c
1062 int ioctl(fd, VIDEO_SELECT_SOURCE, video_stream_source_t source)
1067 .. flat-table::
1068 :header-rows: 0
1069 :stub-columns: 0
1071 - ..
1073 - ``int fd``
1075 - :cspan:`1` File descriptor returned by a previous call
1076 to `open()`_.
1078 - ..
1080 - ``int request``
1082 - Equals ``VIDEO_SELECT_SOURCE`` for this command.
1084 - ..
1086 - `video_stream_source_t`_ ``source``
1088 - Indicates which source shall be used for the Video stream.
1097 by the V4L2 ivtv driver, but that has been replaced by the ivtv-specific
1100 This ioctl call informs the video device which source shall be used for
1104 is directly transferred from the onboard demux-device to the decoder.
1106 The data fed to the decoder is also controlled by the PID-filter.
1113 On success 0 is returned, on error -1 and the ``errno`` variable is set
1115 :ref:`Generic Error Codes <gen-errors>` chapter.
1118 -----
1122 ---------------
1129 .. code-block:: c
1136 .. flat-table::
1137 :header-rows: 0
1138 :stub-columns: 0
1140 - ..
1142 - ``int fd``
1144 - :cspan:`1` File descriptor returned by a previous call
1145 to `open()`_.
1147 - ..
1149 - ``int request``
1151 - :cspan:`1` Equals ``VIDEO_SET_BLANK`` for this command.
1153 - ..
1155 - :rspan:`2` ``int mode``
1157 - :cspan:`1` Indicates if the screen shall be blanked.
1159 - ..
1161 - TRUE ( != 0 )
1163 - Blank screen when stop.
1165 - ..
1167 - FALSE ( == 0 )
1169 - Show last decoded frame.
1182 On success 0 is returned, on error -1 and the ``errno`` variable is set
1184 :ref:`Generic Error Codes <gen-errors>` chapter.
1187 -----
1191 ----------------
1198 .. code-block:: c
1206 .. flat-table::
1207 :header-rows: 0
1208 :stub-columns: 0
1210 - ..
1212 - ``int fd``
1214 - :cspan:`1` File descriptor returned by a previous call
1215 to `open()`_.
1217 - ..
1219 - ``int request``
1221 - Equals ``VIDEO_GET_STATUS`` for this command.
1223 - ..
1225 - ``struct`` `video_status`_ ``*status``
1227 - Returns the current status of the Video Device.
1241 On success 0 is returned, on error -1 and the ``errno`` variable is set
1243 :ref:`Generic Error Codes <gen-errors>` chapter.
1246 -----
1250 ---------------
1257 .. code-block:: c
1265 .. flat-table::
1266 :header-rows: 0
1267 :stub-columns: 0
1269 - ..
1271 - ``int fd``
1273 - :cspan:`1` File descriptor returned by a previous call
1274 to `open()`_.
1276 - ..
1278 - ``int request``
1280 - Equals ``VIDEO_GET_EVENT`` for this command.
1282 - ..
1284 - ``struct`` `video_event`_ ``*ev``
1286 - Points to the location where the event, if any, is to be stored.
1301 in blocking or non-blocking mode. In the latter case, the call fails
1307 specified as the wake-up condition. Read-only permissions are sufficient
1313 On success 0 is returned, on error -1 and the ``errno`` variable is set
1315 :ref:`Generic Error Codes <gen-errors>` chapter.
1317 .. flat-table::
1318 :header-rows: 0
1319 :stub-columns: 0
1321 - ..
1323 - ``EWOULDBLOCK``
1325 - :cspan:`1` There is no event pending, and the device is in
1326 non-blocking mode.
1328 - ..
1330 - ``EOVERFLOW``
1332 - Overflow in event queue - one or more events were lost.
1335 -----
1339 ------------------------
1346 .. code-block:: c
1354 .. flat-table::
1355 :header-rows: 0
1356 :stub-columns: 0
1358 - ..
1360 - ``int fd``
1362 - :cspan:`1` File descriptor returned by a previous call
1363 to `open()`_.
1365 - ..
1367 - ``int request``
1369 - Equals ``VIDEO_SET_DISPLAY_FORMAT`` for this command.
1371 - ..
1373 - `video_displayformat_t`_ ``format``
1375 - Selects the video format to be used.
1389 On success 0 is returned, on error -1 and the ``errno`` variable is set
1391 :ref:`Generic Error Codes <gen-errors>` chapter.
1394 -----
1398 ------------------
1405 .. code-block:: c
1413 .. flat-table::
1414 :header-rows: 0
1415 :stub-columns: 0
1417 - ..
1419 - ``int fd``
1421 - :cspan:`1` File descriptor returned by a previous call
1422 to `open()`_.
1424 - ..
1426 - ``int request``
1428 - Equals ``VIDEO_STILLPICTURE`` for this command.
1430 - ..
1432 - ``struct`` `video_still_picture`_ ``*sp``
1434 - Pointer to the location where the struct with the I-frame
1444 (I-frame). The input data shall be the section of an elementary video
1445 stream containing an I-frame. Typically this section is extracted from a
1450 e.g. The AV7110 supports MPEG1 and MPEG2 with the common PAL-SD
1456 On success 0 is returned, on error -1 and the ``errno`` variable is set
1458 :ref:`Generic Error Codes <gen-errors>` chapter.
1461 -----
1465 ------------------
1472 .. code-block:: c
1479 .. flat-table::
1480 :header-rows: 0
1481 :stub-columns: 0
1483 - ..
1485 - ``int fd``
1487 - :cspan:`1` File descriptor returned by a previous call
1488 to `open()`_.
1490 - ..
1492 - ``int request``
1494 - Equals ``VIDEO_FAST_FORWARD`` for this command.
1496 - ..
1498 - ``int nFrames``
1500 - The number of frames to skip.
1509 I-frames. This call can only be used if ``VIDEO_SOURCE_MEMORY`` is
1515 On success 0 is returned, on error -1 and the ``errno`` variable is set
1517 :ref:`Generic Error Codes <gen-errors>` chapter.
1519 .. flat-table::
1520 :header-rows: 0
1521 :stub-columns: 0
1523 - ..
1525 - ``EPERM``
1527 - Mode ``VIDEO_SOURCE_MEMORY`` not selected.
1530 -----
1534 ----------------
1541 .. code-block:: c
1548 .. flat-table::
1549 :header-rows: 0
1550 :stub-columns: 0
1552 - ..
1554 - ``int fd``
1556 - :cspan:`1` File descriptor returned by a previous call
1557 to `open()`_.
1559 - ..
1561 - ``int request``
1563 - Equals ``VIDEO_SLOWMOTION`` for this command.
1565 - ..
1567 - ``int nFrames``
1569 - The number of times to repeat each frame.
1584 On success 0 is returned, on error -1 and the ``errno`` variable is set
1586 :ref:`Generic Error Codes <gen-errors>` chapter.
1588 .. flat-table::
1589 :header-rows: 0
1590 :stub-columns: 0
1592 - ..
1594 - ``EPERM``
1596 - Mode ``VIDEO_SOURCE_MEMORY`` not selected.
1599 -----
1603 ----------------------
1610 .. code-block:: c
1617 .. flat-table::
1618 :header-rows: 0
1619 :stub-columns: 0
1621 - ..
1623 - ``int fd``
1625 - :cspan:`1` File descriptor returned by a previous call
1626 to `open()`_.
1628 - ..
1630 - ``int request``
1632 - Equals ``VIDEO_GET_CAPABILITIES`` for this command.
1634 - ..
1636 - ``unsigned int *cap``
1638 - Pointer to a location where to store the capability information.
1653 On success 0 is returned, on error -1 and the ``errno`` variable is set
1655 :ref:`Generic Error Codes <gen-errors>` chapter.
1658 -----
1662 ------------------
1669 .. code-block:: c
1676 .. flat-table::
1677 :header-rows: 0
1678 :stub-columns: 0
1680 - ..
1682 - ``int fd``
1684 - :cspan:`1` File descriptor returned by a previous call
1685 to `open()`_.
1687 - ..
1689 - ``int request``
1691 - Equals ``VIDEO_CLEAR_BUFFER`` for this command.
1705 On success 0 is returned, on error -1 and the ``errno`` variable is set
1707 :ref:`Generic Error Codes <gen-errors>` chapter.
1710 -----
1714 --------------------
1721 .. code-block:: c
1728 .. flat-table::
1729 :header-rows: 0
1730 :stub-columns: 0
1732 - ..
1734 - ``int fd``
1736 - :cspan:`1` File descriptor returned by a previous call
1737 to `open()`_.
1739 - ..
1741 - ``int request``
1743 - Equals ``VIDEO_SET_STREAMTYPE`` for this command.
1745 - ..
1747 - ``int type``
1749 - Stream type.
1764 .. flat-table::
1765 :header-rows: 1
1766 :stub-columns: 0
1768 - ..
1770 - Codec
1772 - Stream type
1774 - ..
1776 - MPEG2
1778 - 0
1780 - ..
1782 - MPEG4 h.264
1784 - 1
1786 - ..
1788 - VC1
1790 - 3
1792 - ..
1794 - MPEG4 Part2
1796 - 4
1798 - ..
1800 - VC1 SM
1802 - 5
1804 - ..
1806 - MPEG1
1808 - 6
1810 - ..
1812 - HEVC h.265
1814 - | 7
1817 - ..
1819 - AVS
1821 - 16
1823 - ..
1825 - AVS2
1827 - 40
1834 On success 0 is returned, on error -1 and the ``errno`` variable is set
1836 :ref:`Generic Error Codes <gen-errors>` chapter.
1839 -----
1843 ----------------
1850 .. code-block:: c
1857 .. flat-table::
1858 :header-rows: 0
1859 :stub-columns: 0
1861 - ..
1863 - ``int fd``
1865 - :cspan:`1` File descriptor returned by a previous call
1866 to `open()`_.
1868 - ..
1870 - ``int request``
1872 - Equals ``VIDEO_SET_FORMAT`` for this command.
1874 - ..
1876 - `video_format_t`_ ``format``
1878 - Video format of TV as defined in section `video_format_t`_.
1893 On success 0 is returned, on error -1 and the ``errno`` variable is set
1895 :ref:`Generic Error Codes <gen-errors>` chapter.
1898 -----
1902 --------------
1909 .. code-block:: c
1916 .. flat-table::
1917 :header-rows: 0
1918 :stub-columns: 0
1920 - ..
1922 - ``int fd``
1924 - :cspan:`1` File descriptor returned by a previous call,
1925 to `open()`_.
1927 - ..
1929 - ``int request``
1931 - Equals ``VIDEO_GET_SIZE`` for this command.
1933 - ..
1935 - `video_size_t`_ ``*size``
1937 - Returns the size and aspect ratio.
1950 On success 0 is returned, on error -1 and the ``errno`` variable is set
1952 :ref:`Generic Error Codes <gen-errors>` chapter.
1955 -----
1959 -------------
1966 .. code-block:: c
1973 .. flat-table::
1974 :header-rows: 0
1975 :stub-columns: 0
1977 - ..
1979 - ``int fd``
1981 - :cspan:`1` File descriptor returned by a previous call
1982 to `open()`_.
1984 - ..
1986 - ``int request``
1988 - Equals ``VIDEO_GET_PTS`` for this command.
1990 - ..
1992 - ``__u64 *pts``
1994 - Returns the 33-bit timestamp as defined in ITU T-REC-H.222.0 /
1995 ISO/IEC 13818-1.
2016 On success 0 is returned, on error -1 and the ``errno`` variable is set
2018 :ref:`Generic Error Codes <gen-errors>` chapter.
2021 -----
2025 ---------------------
2032 .. code-block:: c
2039 .. flat-table::
2040 :header-rows: 0
2041 :stub-columns: 0
2043 - ..
2045 - ``int fd``
2047 - :cspan:`1` File descriptor returned by a previous call
2048 to `open()`_.
2050 - ..
2052 - ``int request``
2054 - Equals ``VIDEO_GET_FRAME_COUNT`` for this command.
2056 - ..
2058 - ``__u64 *pts``
2060 - Returns the number of frames displayed since the decoder was
2078 On success 0 is returned, on error -1 and the ``errno`` variable is set
2080 :ref:`Generic Error Codes <gen-errors>` chapter.
2083 -----
2087 -------------
2094 .. code-block:: c
2102 .. flat-table::
2103 :header-rows: 0
2104 :stub-columns: 0
2106 - ..
2108 - ``int fd``
2110 - :cspan:`1` File descriptor returned by a previous call
2111 to `open()`_.
2113 - ..
2115 - ``int request``
2117 - Equals ``VIDEO_COMMAND`` for this command.
2119 - ..
2121 - `struct video_command`_ ``*cmd``
2123 - Commands the decoder.
2142 On success 0 is returned, on error -1 and the ``errno`` variable is set
2144 :ref:`Generic Error Codes <gen-errors>` chapter.
2147 -----
2151 -----------------
2158 .. code-block:: c
2166 .. flat-table::
2167 :header-rows: 0
2168 :stub-columns: 0
2170 - ..
2172 - ``int fd``
2174 - :cspan:`1` File descriptor returned by a previous call
2175 to `open()`_.
2177 - ..
2179 - ``int request``
2181 - Equals ``VIDEO_TRY_COMMAND`` for this command.
2183 - ..
2185 - `struct video_command`_ ``*cmd``
2187 - Try a decoder command.
2206 On success 0 is returned, on error -1 and the ``errno`` variable is set
2208 :ref:`Generic Error Codes <gen-errors>` chapter.
2211 -----
2214 open()
2215 ------
2220 .. code-block:: c
2224 .. c:function:: int open(const char *deviceName, int flags) argument
2229 .. flat-table::
2230 :header-rows: 0
2231 :stub-columns: 0
2233 - ..
2235 - ``const char *deviceName``
2237 - Name of specific video device.
2239 - ..
2241 - :rspan:`3` ``int flags``
2243 - :cspan:`1` A bit-wise OR of the following flags:
2245 - ..
2247 - ``O_RDONLY``
2249 - read-only access
2251 - ..
2253 - ``O_RDWR``
2255 - read/write access
2257 - ..
2259 - ``O_NONBLOCK``
2260 - | Open in non-blocking mode
2269 When an open() call has succeeded, the device will be ready for use. The argument
2270 significance of blocking or non-blocking mode is described in the
2272 affect the semantics of the open() call itself. A device opened in
2273 blocking mode can later be put into non-blocking mode (and vice versa)
2276 user can open the Video Device in O_RDWR mode. All other attempts to
2277 open the device in this mode will fail, and an error-code will be
2285 .. flat-table::
2286 :header-rows: 0
2287 :stub-columns: 0
2289 - ..
2291 - ``ENODEV``
2293 - :cspan:`1` Device driver not loaded/available.
2295 - ..
2297 - ``EINTERNAL``
2299 - Internal error.
2301 - ..
2303 - ``EBUSY``
2305 - Device or resource busy.
2307 - ..
2309 - ``EINVAL``
2311 - Invalid argument.
2314 -----
2318 -------
2328 .. flat-table::
2329 :header-rows: 0
2330 :stub-columns: 0
2332 - ..
2334 - ``int fd``
2336 - :cspan:`1` File descriptor returned by a previous call
2337 to `open()`_.
2347 .. flat-table::
2348 :header-rows: 0
2349 :stub-columns: 0
2351 - ..
2353 - ``EBADF``
2355 - fd is not a valid open file descriptor.
2358 -----
2362 -------
2372 .. flat-table::
2373 :header-rows: 0
2374 :stub-columns: 0
2376 - ..
2378 - ``int fd``
2380 - :cspan:`1` File descriptor returned by a previous call
2381 to `open()`_.
2383 - ..
2385 - ``void *buf``
2387 - Pointer to the buffer containing the PES data.
2389 - ..
2391 - ``size_t count``
2393 - Size of buf.
2401 most common format for storing DVB-data, it is usually supported too.
2410 .. flat-table::
2411 :header-rows: 0
2412 :stub-columns: 0
2414 - ..
2416 - ``EPERM``
2418 - :cspan:`1` Mode ``VIDEO_SOURCE_MEMORY`` not selected.
2420 - ..
2422 - ``ENOMEM``
2424 - Attempted to write more data than the internal buffer can hold.
2426 - ..
2428 - ``EBADF``
2430 - fd is not a valid open file descriptor.