| .. -*- coding: utf-8; mode: rst -*- |
| |
| .. _AUDIO_BILINGUAL_CHANNEL_SELECT: |
| |
| ============================== |
| AUDIO_BILINGUAL_CHANNEL_SELECT |
| ============================== |
| |
| Name |
| ---- |
| |
| AUDIO_BILINGUAL_CHANNEL_SELECT |
| |
| |
| Synopsis |
| -------- |
| |
| .. c:function:: int ioctl(int fd, int request = AUDIO_BILINGUAL_CHANNEL_SELECT, audio_channel_select_t) |
| |
| |
| 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 AUDIO_BILINGUAL_CHANNEL_SELECT for this command. |
| |
| - .. row 3 |
| |
| - audio_channel_select_t ch |
| |
| - Select the output format of the audio (mono left/right, stereo). |
| |
| |
| Description |
| ----------- |
| |
| This ioctl is obsolete. Do not use in new drivers. It has been replaced |
| by the V4L2 ``V4L2_CID_MPEG_AUDIO_DEC_MULTILINGUAL_PLAYBACK`` control |
| for MPEG decoders controlled through V4L2. |
| |
| This ioctl call asks the Audio Device to select the requested channel |
| for bilingual streams if possible. |
| |
| |
| 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. |