| .. -*- coding: utf-8; mode: rst -*- | |
| .. _AUDIO_SET_ID: | |
| ============ | |
| AUDIO_SET_ID | |
| ============ | |
| Name | |
| ---- | |
| AUDIO_SET_ID | |
| .. attention:: This ioctl is deprecated | |
| Synopsis | |
| -------- | |
| .. c:function:: int ioctl(int fd, AUDIO_SET_ID, int id) | |
| :name: AUDIO_SET_ID | |
| Arguments | |
| --------- | |
| .. flat-table:: | |
| :header-rows: 0 | |
| :stub-columns: 0 | |
| - | |
| - int fd | |
| - File descriptor returned by a previous call to open(). | |
| - | |
| - int id | |
| - audio sub-stream id | |
| Description | |
| ----------- | |
| This ioctl selects which sub-stream is to be decoded if a program or | |
| system stream is sent to the video device. If no audio stream type is | |
| set the id has to be in [0xC0,0xDF] for MPEG sound, in [0x80,0x87] for | |
| AC3 and in [0xA0,0xA7] for LPCM. More specifications may follow for | |
| other stream types. If the stream type is set the id just specifies the | |
| substream id of the audio stream and only the first 5 bits are | |
| recognized. | |
| 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. |