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1 | .. -*- coding: utf-8; mode: rst -*- |
2 | ||
3 | .. _audio_fwrite: | |
4 | ||
586027ce | 5 | ================= |
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6 | DVB audio write() |
7 | ================= | |
8 | ||
15e7d615 | 9 | Name |
586027ce | 10 | ---- |
47d23e36 | 11 | |
586027ce | 12 | DVB audio write() |
47d23e36 | 13 | |
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14 | |
15 | Synopsis | |
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16 | -------- |
17 | ||
5929cb17 | 18 | .. cpp:function:: size_t write(int fd, const void *buf, size_t count) |
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 | - void \*buf | |
38 | ||
39 | - Pointer to the buffer containing the PES data. | |
40 | ||
41 | - .. row 3 | |
42 | ||
43 | - size_t count | |
44 | ||
45 | - Size of buf. | |
46 | ||
47 | ||
15e7d615 | 48 | Description |
586027ce | 49 | ----------- |
47d23e36 | 50 | |
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51 | This system call can only be used if AUDIO_SOURCE_MEMORY is selected |
52 | in the ioctl call AUDIO_SELECT_SOURCE. The data provided shall be in | |
53 | PES format. If O_NONBLOCK is not specified the function will block | |
54 | until buffer space is available. The amount of data to be transferred is | |
55 | implied by count. | |
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56 | |
57 | ||
15e7d615 | 58 | Return Value |
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59 | ------------ |
60 | ||
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61 | .. flat-table:: |
62 | :header-rows: 0 | |
63 | :stub-columns: 0 | |
64 | ||
65 | ||
66 | - .. row 1 | |
67 | ||
68 | - ``EPERM`` | |
69 | ||
70 | - Mode AUDIO_SOURCE_MEMORY not selected. | |
71 | ||
72 | - .. row 2 | |
73 | ||
74 | - ``ENOMEM`` | |
75 | ||
76 | - Attempted to write more data than the internal buffer can hold. | |
77 | ||
78 | - .. row 3 | |
79 | ||
80 | - ``EBADF`` | |
81 | ||
82 | - fd is not a valid open file descriptor. |