1*4882a593Smuzhiyun.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later 2*4882a593Smuzhiyun 3*4882a593Smuzhiyun.. _dvb_audio: 4*4882a593Smuzhiyun 5*4882a593Smuzhiyun####################### 6*4882a593SmuzhiyunDigital TV Audio Device 7*4882a593Smuzhiyun####################### 8*4882a593Smuzhiyun 9*4882a593SmuzhiyunThe Digital TV audio device controls the MPEG2 audio decoder of the Digital 10*4882a593SmuzhiyunTV hardware. It can be accessed through ``/dev/dvb/adapter?/audio?``. Data 11*4882a593Smuzhiyuntypes and and ioctl definitions can be accessed by including 12*4882a593Smuzhiyun``linux/dvb/audio.h`` in your application. 13*4882a593Smuzhiyun 14*4882a593SmuzhiyunPlease note that some Digital TV cards don’t have their own MPEG decoder, which 15*4882a593Smuzhiyunresults in the omission of the audio and video device. 16*4882a593Smuzhiyun 17*4882a593SmuzhiyunThese ioctls were also used by V4L2 to control MPEG decoders implemented 18*4882a593Smuzhiyunin V4L2. The use of these ioctls for that purpose has been made obsolete 19*4882a593Smuzhiyunand proper V4L2 ioctls or controls have been created to replace that 20*4882a593Smuzhiyunfunctionality. 21*4882a593Smuzhiyun 22*4882a593Smuzhiyun 23*4882a593Smuzhiyun.. toctree:: 24*4882a593Smuzhiyun :maxdepth: 1 25*4882a593Smuzhiyun 26*4882a593Smuzhiyun audio_data_types 27*4882a593Smuzhiyun audio_function_calls 28