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