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1 | .. -*- coding: utf-8; mode: rst -*- |
2 | ||
3 | .. _VIDEO_GET_PTS: | |
4 | ||
586027ce | 5 | ============= |
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6 | VIDEO_GET_PTS |
7 | ============= | |
8 | ||
15e7d615 | 9 | Name |
586027ce | 10 | ---- |
47d23e36 | 11 | |
586027ce | 12 | VIDEO_GET_PTS |
47d23e36 | 13 | |
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14 | |
15 | Synopsis | |
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16 | -------- |
17 | ||
5929cb17 | 18 | .. cpp:function:: int ioctl(int fd, int request = VIDEO_GET_PTS, __u64 *pts) |
47d23e36 | 19 | |
47d23e36 | 20 | |
15e7d615 | 21 | Arguments |
586027ce | 22 | --------- |
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23 | |
24 | .. flat-table:: | |
25 | :header-rows: 0 | |
26 | :stub-columns: 0 | |
27 | ||
28 | ||
29 | - .. row 1 | |
30 | ||
31 | - int fd | |
32 | ||
33 | - File descriptor returned by a previous call to open(). | |
34 | ||
35 | - .. row 2 | |
36 | ||
37 | - int request | |
38 | ||
39 | - Equals VIDEO_GET_PTS for this command. | |
40 | ||
41 | - .. row 3 | |
42 | ||
43 | - __u64 \*pts | |
44 | ||
45 | - Returns the 33-bit timestamp as defined in ITU T-REC-H.222.0 / | |
46 | ISO/IEC 13818-1. | |
47 | ||
48 | The PTS should belong to the currently played frame if possible, | |
49 | but may also be a value close to it like the PTS of the last | |
50 | decoded frame or the last PTS extracted by the PES parser. | |
51 | ||
52 | ||
15e7d615 | 53 | Description |
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54 | ----------- |
55 | ||
56 | This ioctl is obsolete. Do not use in new drivers. For V4L2 decoders | |
57 | this ioctl has been replaced by the ``V4L2_CID_MPEG_VIDEO_DEC_PTS`` | |
58 | control. | |
59 | ||
60 | This ioctl call asks the Video Device to return the current PTS | |
61 | timestamp. | |
62 | ||
63 | ||
15e7d615 | 64 | Return Value |
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65 | ------------ |
66 | ||
67 | On success 0 is returned, on error -1 and the ``errno`` variable is set | |
68 | appropriately. The generic error codes are described at the | |
69 | :ref:`Generic Error Codes <gen-errors>` chapter. |