diff options
Diffstat (limited to 'Documentation/userspace-api/media/dvb/audio.rst')
| -rw-r--r-- | Documentation/userspace-api/media/dvb/audio.rst | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/Documentation/userspace-api/media/dvb/audio.rst b/Documentation/userspace-api/media/dvb/audio.rst new file mode 100644 index 000000000000..e137c151335d --- /dev/null +++ b/Documentation/userspace-api/media/dvb/audio.rst @@ -0,0 +1,34 @@ +.. Permission is granted to copy, distribute and/or modify this +.. document under the terms of the GNU Free Documentation License, +.. Version 1.1 or any later version published by the Free Software +.. Foundation, with no Invariant Sections, no Front-Cover Texts +.. and no Back-Cover Texts. A copy of the license is included at +.. Documentation/userspace-api/media/fdl-appendix.rst. +.. +.. TODO: replace it to GFDL-1.1-or-later WITH no-invariant-sections + +.. _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 |