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Diffstat (limited to 'Documentation/userspace-api/media/dvb/audio.rst')
| -rw-r--r-- | Documentation/userspace-api/media/dvb/audio.rst | 27 |
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diff --git a/Documentation/userspace-api/media/dvb/audio.rst b/Documentation/userspace-api/media/dvb/audio.rst new file mode 100644 index 000000000..071abac9d --- /dev/null +++ b/Documentation/userspace-api/media/dvb/audio.rst @@ -0,0 +1,27 @@ +.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later + +.. _dvb_audio: + +####################### +Digital TV Audio Device +####################### + +The Digital TV audio device controls the MPEG2 audio decoder of the Digital +TV hardware. It can be accessed through ``/dev/dvb/adapter?/audio?``. Data +types and and ioctl definitions can be accessed by including +``linux/dvb/audio.h`` in your application. + +Please note that some Digital TV cards don’t have their own MPEG decoder, which +results in the omission of the audio and video device. + +These ioctls were also used by V4L2 to control MPEG decoders implemented +in V4L2. The use of these ioctls for that purpose has been made obsolete +and proper V4L2 ioctls or controls have been created to replace that +functionality. + + +.. toctree:: + :maxdepth: 1 + + audio_data_types + audio_function_calls |