6.3.2.13. AUDIO_BILINGUAL_CHANNEL_SELECT

6.3.2.13.1. Name

AUDIO_BILINGUAL_CHANNEL_SELECT

注意

This ioctl is deprecated

6.3.2.13.2. Synopsis

int ioctl(int fd, AUDIO_BILINGUAL_CHANNEL_SELECT, struct *audio_channel_select)

6.3.2.13.3. Arguments

int fd

File descriptor returned by a previous call to open().

audio_channel_select_t ch

Select the output format of the audio (mono left/right, stereo).

6.3.2.13.4. 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This ioctl is obsolete.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 It has been replaced by the V4L2 V4L2_CID_MPEG_AUDIO_DEC_MULTILINGUAL_PLAYBACK control for MPEG decoders controlled through V4L2.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.

6.3.2.13.5. 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 Generic Error Codes chapter.