| Mauro Carvalho Chehab | 47d23e3 | 2016-07-05 10:37:31 -0300 | [diff] [blame] | 1 | .. -*- coding: utf-8; mode: rst -*- |
| 2 | |
| 3 | .. _AUDIO_BILINGUAL_CHANNEL_SELECT: |
| 4 | |
| Mauro Carvalho Chehab | 586027c | 2016-07-05 07:58:48 -0300 | [diff] [blame] | 5 | ============================== |
| Mauro Carvalho Chehab | 47d23e3 | 2016-07-05 10:37:31 -0300 | [diff] [blame] | 6 | AUDIO_BILINGUAL_CHANNEL_SELECT |
| 7 | ============================== |
| 8 | |
| Mauro Carvalho Chehab | 15e7d61 | 2016-07-05 15:14:35 -0300 | [diff] [blame] | 9 | Name |
| Mauro Carvalho Chehab | 586027c | 2016-07-05 07:58:48 -0300 | [diff] [blame] | 10 | ---- |
| Mauro Carvalho Chehab | 47d23e3 | 2016-07-05 10:37:31 -0300 | [diff] [blame] | 11 | |
| Mauro Carvalho Chehab | 586027c | 2016-07-05 07:58:48 -0300 | [diff] [blame] | 12 | AUDIO_BILINGUAL_CHANNEL_SELECT |
| Mauro Carvalho Chehab | 47d23e3 | 2016-07-05 10:37:31 -0300 | [diff] [blame] | 13 | |
| Mauro Carvalho Chehab | 15e7d61 | 2016-07-05 15:14:35 -0300 | [diff] [blame] | 14 | |
| 15 | Synopsis |
| Mauro Carvalho Chehab | 47d23e3 | 2016-07-05 10:37:31 -0300 | [diff] [blame] | 16 | -------- |
| 17 | |
| Mauro Carvalho Chehab | 5929cb1 | 2016-07-05 15:22:59 -0300 | [diff] [blame] | 18 | .. cpp:function:: int ioctl(int fd, int request = AUDIO_BILINGUAL_CHANNEL_SELECT, audio_channel_select_t) |
| Mauro Carvalho Chehab | 47d23e3 | 2016-07-05 10:37:31 -0300 | [diff] [blame] | 19 | |
| Mauro Carvalho Chehab | 47d23e3 | 2016-07-05 10:37:31 -0300 | [diff] [blame] | 20 | |
| Mauro Carvalho Chehab | 15e7d61 | 2016-07-05 15:14:35 -0300 | [diff] [blame] | 21 | Arguments |
| Mauro Carvalho Chehab | 586027c | 2016-07-05 07:58:48 -0300 | [diff] [blame] | 22 | --------- |
| Mauro Carvalho Chehab | 47d23e3 | 2016-07-05 10:37:31 -0300 | [diff] [blame] | 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 AUDIO_BILINGUAL_CHANNEL_SELECT for this command. |
| 40 | |
| 41 | - .. row 3 |
| 42 | |
| 43 | - audio_channel_select_t ch |
| 44 | |
| 45 | - Select the output format of the audio (mono left/right, stereo). |
| 46 | |
| 47 | |
| Mauro Carvalho Chehab | 15e7d61 | 2016-07-05 15:14:35 -0300 | [diff] [blame] | 48 | Description |
| Mauro Carvalho Chehab | 586027c | 2016-07-05 07:58:48 -0300 | [diff] [blame] | 49 | ----------- |
| 50 | |
| 51 | This ioctl is obsolete. Do not use in new drivers. It has been replaced |
| 52 | by the V4L2 ``V4L2_CID_MPEG_AUDIO_DEC_MULTILINGUAL_PLAYBACK`` control |
| 53 | for MPEG decoders controlled through V4L2. |
| 54 | |
| 55 | This ioctl call asks the Audio Device to select the requested channel |
| 56 | for bilingual streams if possible. |
| 57 | |
| 58 | |
| Mauro Carvalho Chehab | 15e7d61 | 2016-07-05 15:14:35 -0300 | [diff] [blame] | 59 | Return Value |
| Mauro Carvalho Chehab | 47d23e3 | 2016-07-05 10:37:31 -0300 | [diff] [blame] | 60 | ------------ |
| 61 | |
| 62 | On success 0 is returned, on error -1 and the ``errno`` variable is set |
| 63 | appropriately. The generic error codes are described at the |
| 64 | :ref:`Generic Error Codes <gen-errors>` chapter. |