1*793e52d4SMauro Carvalho Chehab.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later 2*793e52d4SMauro Carvalho Chehab.. c:namespace:: DTV.audio 3*793e52d4SMauro Carvalho Chehab 4*793e52d4SMauro Carvalho Chehab.. _AUDIO_SET_ID: 5*793e52d4SMauro Carvalho Chehab 6*793e52d4SMauro Carvalho Chehab============ 7*793e52d4SMauro Carvalho ChehabAUDIO_SET_ID 8*793e52d4SMauro Carvalho Chehab============ 9*793e52d4SMauro Carvalho Chehab 10*793e52d4SMauro Carvalho ChehabName 11*793e52d4SMauro Carvalho Chehab---- 12*793e52d4SMauro Carvalho Chehab 13*793e52d4SMauro Carvalho ChehabAUDIO_SET_ID 14*793e52d4SMauro Carvalho Chehab 15*793e52d4SMauro Carvalho Chehab.. attention:: This ioctl is deprecated 16*793e52d4SMauro Carvalho Chehab 17*793e52d4SMauro Carvalho ChehabSynopsis 18*793e52d4SMauro Carvalho Chehab-------- 19*793e52d4SMauro Carvalho Chehab 20*793e52d4SMauro Carvalho Chehab.. c:macro:: AUDIO_SET_ID 21*793e52d4SMauro Carvalho Chehab 22*793e52d4SMauro Carvalho Chehab``int ioctl(int fd, AUDIO_SET_ID, int id)`` 23*793e52d4SMauro Carvalho Chehab 24*793e52d4SMauro Carvalho ChehabArguments 25*793e52d4SMauro Carvalho Chehab--------- 26*793e52d4SMauro Carvalho Chehab 27*793e52d4SMauro Carvalho Chehab.. flat-table:: 28*793e52d4SMauro Carvalho Chehab :header-rows: 0 29*793e52d4SMauro Carvalho Chehab :stub-columns: 0 30*793e52d4SMauro Carvalho Chehab 31*793e52d4SMauro Carvalho Chehab - 32*793e52d4SMauro Carvalho Chehab 33*793e52d4SMauro Carvalho Chehab - int fd 34*793e52d4SMauro Carvalho Chehab 35*793e52d4SMauro Carvalho Chehab - File descriptor returned by a previous call to open(). 36*793e52d4SMauro Carvalho Chehab 37*793e52d4SMauro Carvalho Chehab - 38*793e52d4SMauro Carvalho Chehab 39*793e52d4SMauro Carvalho Chehab - int id 40*793e52d4SMauro Carvalho Chehab 41*793e52d4SMauro Carvalho Chehab - audio sub-stream id 42*793e52d4SMauro Carvalho Chehab 43*793e52d4SMauro Carvalho ChehabDescription 44*793e52d4SMauro Carvalho Chehab----------- 45*793e52d4SMauro Carvalho Chehab 46*793e52d4SMauro Carvalho ChehabThis ioctl selects which sub-stream is to be decoded if a program or 47*793e52d4SMauro Carvalho Chehabsystem stream is sent to the video device. If no audio stream type is 48*793e52d4SMauro Carvalho Chehabset the id has to be in [0xC0,0xDF] for MPEG sound, in [0x80,0x87] for 49*793e52d4SMauro Carvalho ChehabAC3 and in [0xA0,0xA7] for LPCM. More specifications may follow for 50*793e52d4SMauro Carvalho Chehabother stream types. If the stream type is set the id just specifies the 51*793e52d4SMauro Carvalho Chehabsubstream id of the audio stream and only the first 5 bits are 52*793e52d4SMauro Carvalho Chehabrecognized. 53*793e52d4SMauro Carvalho Chehab 54*793e52d4SMauro Carvalho ChehabReturn Value 55*793e52d4SMauro Carvalho Chehab------------ 56*793e52d4SMauro Carvalho Chehab 57*793e52d4SMauro Carvalho ChehabOn success 0 is returned, on error -1 and the ``errno`` variable is set 58*793e52d4SMauro Carvalho Chehabappropriately. The generic error codes are described at the 59*793e52d4SMauro Carvalho Chehab:ref:`Generic Error Codes <gen-errors>` chapter. 60