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 |
This ioctl is for DVB 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.
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.