6.3.2.9. AUDIO_SET_MUTE

6.3.2.9.1. Name

AUDIO_SET_MUTE

注意

This ioctl is deprecated

6.3.2.9.2. Synopsis

int ioctl(int fd, AUDIO_SET_MUTE, boolean state)

6.3.2.9.3. Arguments

int fd

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

boolean state

Indicates if audio device shall mute or not.

TRUE: Audio Mute

FALSE: Audio Un-mute

6.3.2.9.4. Description

This ioctl is for Digital TV devices only. To control a V4L2 decoder use the V4L2 ioctl VIDIOC_DECODER_CMD, VIDIOC_TRY_DECODER_CMD with the V4L2_DEC_CMD_START_MUTE_AUDIO flag instead.

This ioctl call asks the audio device to mute the stream that is currently being played.

6.3.2.9.5. 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.