1*4882a593Smuzhiyun.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later 2*4882a593Smuzhiyun.. c:namespace:: DTV.audio 3*4882a593Smuzhiyun 4*4882a593Smuzhiyun.. _AUDIO_SET_BYPASS_MODE: 5*4882a593Smuzhiyun 6*4882a593Smuzhiyun===================== 7*4882a593SmuzhiyunAUDIO_SET_BYPASS_MODE 8*4882a593Smuzhiyun===================== 9*4882a593Smuzhiyun 10*4882a593SmuzhiyunName 11*4882a593Smuzhiyun---- 12*4882a593Smuzhiyun 13*4882a593SmuzhiyunAUDIO_SET_BYPASS_MODE 14*4882a593Smuzhiyun 15*4882a593Smuzhiyun.. attention:: This ioctl is deprecated 16*4882a593Smuzhiyun 17*4882a593SmuzhiyunSynopsis 18*4882a593Smuzhiyun-------- 19*4882a593Smuzhiyun 20*4882a593Smuzhiyun.. c:macro:: AUDIO_SET_BYPASS_MODE 21*4882a593Smuzhiyun 22*4882a593Smuzhiyun``int ioctl(int fd, AUDIO_SET_BYPASS_MODE, boolean mode)`` 23*4882a593Smuzhiyun 24*4882a593SmuzhiyunArguments 25*4882a593Smuzhiyun--------- 26*4882a593Smuzhiyun 27*4882a593Smuzhiyun.. flat-table:: 28*4882a593Smuzhiyun :header-rows: 0 29*4882a593Smuzhiyun :stub-columns: 0 30*4882a593Smuzhiyun 31*4882a593Smuzhiyun - 32*4882a593Smuzhiyun 33*4882a593Smuzhiyun - int fd 34*4882a593Smuzhiyun 35*4882a593Smuzhiyun - File descriptor returned by a previous call to open(). 36*4882a593Smuzhiyun 37*4882a593Smuzhiyun - 38*4882a593Smuzhiyun 39*4882a593Smuzhiyun - boolean mode 40*4882a593Smuzhiyun 41*4882a593Smuzhiyun - Enables or disables the decoding of the current Audio stream in 42*4882a593Smuzhiyun the Digital TV subsystem. 43*4882a593Smuzhiyun 44*4882a593Smuzhiyun TRUE: Bypass is disabled 45*4882a593Smuzhiyun 46*4882a593Smuzhiyun FALSE: Bypass is enabled 47*4882a593Smuzhiyun 48*4882a593SmuzhiyunDescription 49*4882a593Smuzhiyun----------- 50*4882a593Smuzhiyun 51*4882a593SmuzhiyunThis ioctl call asks the Audio Device to bypass the Audio decoder and 52*4882a593Smuzhiyunforward the stream without decoding. This mode shall be used if streams 53*4882a593Smuzhiyunthat can’t be handled by the Digital TV system shall be decoded. Dolby 54*4882a593SmuzhiyunDigitalTM streams are automatically forwarded by the Digital TV subsystem if 55*4882a593Smuzhiyunthe hardware can handle it. 56*4882a593Smuzhiyun 57*4882a593SmuzhiyunReturn Value 58*4882a593Smuzhiyun------------ 59*4882a593Smuzhiyun 60*4882a593SmuzhiyunOn success 0 is returned, on error -1 and the ``errno`` variable is set 61*4882a593Smuzhiyunappropriately. The generic error codes are described at the 62*4882a593Smuzhiyun:ref:`Generic Error Codes <gen-errors>` chapter. 63