6.3.2.11. AUDIO_SET_BYPASS_MODE

6.3.2.11.1. Name

AUDIO_SET_BYPASS_MODE

注意

This ioctl is deprecated

6.3.2.11.2. Synopsis

int ioctl(int fd, AUDIO_SET_BYPASS_MODE, boolean mode)

6.3.2.11.3. Arguments

int fd

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

boolean mode

Enables or disables the decoding of the current Audio stream in the Digital TV subsystem.

TRUE: Bypass is disabled

FALSE: Bypass is enabled

6.3.2.11.4. Description

This ioctl call asks the Audio Device to bypass the Audio decoder and forward the stream without decoding. This mode shall be used if streams that can’t be handled by the Digital TV system shall be decoded. Dolby DigitalTM streams are automatically forwarded by the Digital TV subsystem if the hardware can handle it.

6.3.2.11.5. 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.