From b20732900e4636a467c0183a47f7396700f5f743 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Wed, 7 Aug 2024 15:11:22 +0200
Subject: Adding upstream version 6.9.7.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 .../userspace-api/media/dvb/legacy_dvb_apis.rst    |    1 +
 .../userspace-api/media/dvb/legacy_dvb_audio.rst   | 1642 +++++++++++++
 .../media/dvb/legacy_dvb_decoder_api.rst           |   61 +
 .../userspace-api/media/dvb/legacy_dvb_osd.rst     |  883 +++++++
 .../userspace-api/media/dvb/legacy_dvb_video.rst   | 2430 ++++++++++++++++++++
 5 files changed, 5017 insertions(+)
 create mode 100644 Documentation/userspace-api/media/dvb/legacy_dvb_audio.rst
 create mode 100644 Documentation/userspace-api/media/dvb/legacy_dvb_decoder_api.rst
 create mode 100644 Documentation/userspace-api/media/dvb/legacy_dvb_osd.rst
 create mode 100644 Documentation/userspace-api/media/dvb/legacy_dvb_video.rst

(limited to 'Documentation/userspace-api/media/dvb')

diff --git a/Documentation/userspace-api/media/dvb/legacy_dvb_apis.rst b/Documentation/userspace-api/media/dvb/legacy_dvb_apis.rst
index b97d56ee54..ffe8325749 100644
--- a/Documentation/userspace-api/media/dvb/legacy_dvb_apis.rst
+++ b/Documentation/userspace-api/media/dvb/legacy_dvb_apis.rst
@@ -23,3 +23,4 @@ DVB-S2, DVB-T2, ISDB, etc.
     :maxdepth: 1
 
     frontend_legacy_dvbv3_api
+    legacy_dvb_decoder_api
diff --git a/Documentation/userspace-api/media/dvb/legacy_dvb_audio.rst b/Documentation/userspace-api/media/dvb/legacy_dvb_audio.rst
new file mode 100644
index 0000000000..b46fe2becd
--- /dev/null
+++ b/Documentation/userspace-api/media/dvb/legacy_dvb_audio.rst
@@ -0,0 +1,1642 @@
+.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later OR GPL-2.0
+
+.. c:namespace:: dtv.legacy.audio
+
+.. _dvb_audio:
+
+================
+DVB Audio Device
+================
+
+.. attention:: Do **not** use in new drivers!
+             See: :ref:`legacy_dvb_decoder_notes`
+
+The DVB audio device controls the MPEG2 audio decoder of the DVB
+hardware. It can be accessed through ``/dev/dvb/adapter?/audio?``. Data
+types and ioctl definitions can be accessed by including
+``linux/dvb/audio.h`` in your application.
+
+Please note that most DVB 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. Use :ref:`V4L2 ioctls<audio>` for new drivers!
+
+
+Audio Data Types
+================
+
+This section describes the structures, data types and defines used when
+talking to the audio device.
+
+
+-----
+
+
+audio_stream_source_t
+---------------------
+
+Synopsis
+~~~~~~~~
+
+.. c:enum:: audio_stream_source_t
+
+.. code-block:: c
+
+    typedef enum {
+    AUDIO_SOURCE_DEMUX,
+    AUDIO_SOURCE_MEMORY
+    } audio_stream_source_t;
+
+Constants
+~~~~~~~~~
+
+.. flat-table::
+    :header-rows:  0
+    :stub-columns: 0
+
+    -  ..
+
+       -  ``AUDIO_SOURCE_DEMUX``
+
+       -  :cspan:`1` Selects the demultiplexer (fed either by the frontend
+          or the DVR device) as the source of the video stream.
+
+    -  ..
+
+       -  ``AUDIO_SOURCE_MEMORY``
+
+       -  Selects the stream from the application that comes through
+          the `write()`_ system call.
+
+Description
+~~~~~~~~~~~
+
+The audio stream source is set through the `AUDIO_SELECT_SOURCE`_ call
+and can take the following values, depending on whether we are replaying
+from an internal (demux) or external (user write) source.
+
+The data fed to the decoder is also controlled by the PID-filter.
+Output selection: :c:type:`dmx_output` ``DMX_OUT_DECODER``.
+
+
+-----
+
+
+audio_play_state_t
+------------------
+
+Synopsis
+~~~~~~~~
+
+.. c:enum:: audio_play_state_t
+
+.. code-block:: c
+
+    typedef enum {
+	AUDIO_STOPPED,
+	AUDIO_PLAYING,
+	AUDIO_PAUSED
+    } audio_play_state_t;
+
+Constants
+~~~~~~~~~
+
+.. flat-table::
+    :header-rows:  0
+    :stub-columns: 0
+
+    -  ..
+
+       -  ``AUDIO_STOPPED``
+
+       -  Audio is stopped.
+
+    -  ..
+
+       -  ``AUDIO_PLAYING``
+
+       -  Audio is currently playing.
+
+    -  ..
+
+       -  ``AUDIO_PAUSE``
+
+       -  Audio is frozen.
+
+Description
+~~~~~~~~~~~
+
+This values can be returned by the `AUDIO_GET_STATUS`_ call
+representing the state of audio playback.
+
+
+-----
+
+
+audio_channel_select_t
+----------------------
+
+Synopsis
+~~~~~~~~
+
+.. c:enum:: audio_channel_select_t
+
+.. code-block:: c
+
+    typedef enum {
+	AUDIO_STEREO,
+	AUDIO_MONO_LEFT,
+	AUDIO_MONO_RIGHT,
+	AUDIO_MONO,
+	AUDIO_STEREO_SWAPPED
+    } audio_channel_select_t;
+
+Constants
+~~~~~~~~~
+
+.. flat-table::
+    :header-rows:  0
+    :stub-columns: 0
+
+    -  ..
+
+       -  ``AUDIO_STEREO``
+
+       -  Stereo.
+
+    -  ..
+
+       -  ``AUDIO_MONO_LEFT``
+
+       -  Mono, select left stereo channel as source.
+
+    -  ..
+
+       -  ``AUDIO_MONO_RIGHT``
+
+       -  Mono, select right stereo channel as source.
+
+    -  ..
+
+       -  ``AUDIO_MONO``
+
+       -  Mono source only.
+
+    -  ..
+
+       -  ``AUDIO_STEREO_SWAPPED``
+
+       -  Stereo, swap L & R.
+
+Description
+~~~~~~~~~~~
+
+The audio channel selected via `AUDIO_CHANNEL_SELECT`_ is determined by
+this values.
+
+
+-----
+
+
+audio_mixer_t
+-------------
+
+Synopsis
+~~~~~~~~
+
+.. c:struct:: audio_mixer
+
+.. code-block:: c
+
+    typedef struct audio_mixer {
+	unsigned int volume_left;
+	unsigned int volume_right;
+    } audio_mixer_t;
+
+Variables
+~~~~~~~~~
+
+.. flat-table::
+    :header-rows:  0
+    :stub-columns: 0
+
+    -  ..
+
+       -  ``unsigned int volume_left``
+
+       -  Volume left channel.
+          Valid range: 0 ... 255
+
+    -  ..
+
+       -  ``unsigned int volume_right``
+
+       -  Volume right channel.
+          Valid range: 0 ... 255
+
+Description
+~~~~~~~~~~~
+
+This structure is used by the `AUDIO_SET_MIXER`_ call to set the
+audio volume.
+
+
+-----
+
+
+audio_status
+------------
+
+Synopsis
+~~~~~~~~
+
+.. c:struct:: audio_status
+
+.. code-block:: c
+
+    typedef struct audio_status {
+	int AV_sync_state;
+	int mute_state;
+	audio_play_state_t play_state;
+	audio_stream_source_t stream_source;
+	audio_channel_select_t channel_select;
+	int bypass_mode;
+	audio_mixer_t mixer_state;
+    } audio_status_t;
+
+Variables
+~~~~~~~~~
+
+.. flat-table::
+    :header-rows:  0
+    :stub-columns: 0
+
+    -  ..
+
+       -  :rspan:`2` ``int AV_sync_state``
+
+       -  :cspan:`1` Shows if A/V synchronization is ON or OFF.
+
+    -  ..
+
+       -  TRUE  ( != 0 )
+
+       -  AV-sync ON.
+
+    -  ..
+
+       -  FALSE ( == 0 )
+
+       -  AV-sync OFF.
+
+    -  ..
+
+       -  :rspan:`2` ``int mute_state``
+
+       -  :cspan:`1` Indicates if audio is muted or not.
+
+    -  ..
+
+       -  TRUE  ( != 0 )
+
+       -  mute audio
+
+    -  ..
+
+       -  FALSE ( == 0 )
+
+       -  unmute audio
+
+    -  ..
+
+       -  `audio_play_state_t`_ ``play_state``
+
+       -  Current playback state.
+
+    -  ..
+
+       -  `audio_stream_source_t`_ ``stream_source``
+
+       -  Current source of the data.
+
+    -  ..
+
+       -  :rspan:`2` ``int bypass_mode``
+
+       -  :cspan:`1` Is the decoding of the current Audio stream in
+          the DVB subsystem enabled or disabled.
+
+    -  ..
+
+       -  TRUE  ( != 0 )
+
+       -  Bypass disabled.
+
+    -  ..
+
+       -  FALSE ( == 0 )
+
+       -  Bypass enabled.
+
+    -  ..
+
+       -  `audio_mixer_t`_ ``mixer_state``
+
+       -  Current volume settings.
+
+Description
+~~~~~~~~~~~
+
+The `AUDIO_GET_STATUS`_ call returns this structure as information
+about various states of the playback operation.
+
+
+-----
+
+
+audio encodings
+---------------
+
+Synopsis
+~~~~~~~~
+
+.. code-block:: c
+
+     #define AUDIO_CAP_DTS    1
+     #define AUDIO_CAP_LPCM   2
+     #define AUDIO_CAP_MP1    4
+     #define AUDIO_CAP_MP2    8
+     #define AUDIO_CAP_MP3   16
+     #define AUDIO_CAP_AAC   32
+     #define AUDIO_CAP_OGG   64
+     #define AUDIO_CAP_SDDS 128
+     #define AUDIO_CAP_AC3  256
+
+Constants
+~~~~~~~~~
+
+.. flat-table::
+    :header-rows:  0
+    :stub-columns: 0
+
+    -  ..
+
+       -  ``AUDIO_CAP_DTS``
+
+       -  :cspan:`1` The hardware accepts DTS audio tracks.
+
+    -  ..
+
+       -  ``AUDIO_CAP_LPCM``
+
+       -   The hardware accepts uncompressed audio with
+           Linear Pulse-Code Modulation (LPCM)
+
+    -  ..
+
+       -  ``AUDIO_CAP_MP1``
+
+       -  The hardware accepts MPEG-1 Audio Layer 1.
+
+    -  ..
+
+       -  ``AUDIO_CAP_MP2``
+
+       -  The hardware accepts MPEG-1 Audio Layer 2.
+          Also known as MUSICAM.
+
+    -  ..
+
+       -  ``AUDIO_CAP_MP3``
+
+       -  The hardware accepts MPEG-1 Audio Layer III.
+          Commomly known as .mp3.
+
+    -  ..
+
+       -  ``AUDIO_CAP_AAC``
+
+       -  The hardware accepts AAC (Advanced Audio Coding).
+
+    -  ..
+
+       -  ``AUDIO_CAP_OGG``
+
+       -  The hardware accepts Vorbis audio tracks.
+
+    -  ..
+
+       -  ``AUDIO_CAP_SDDS``
+
+       -  The hardware accepts Sony Dynamic Digital Sound (SDDS).
+
+    -  ..
+
+       -  ``AUDIO_CAP_AC3``
+
+       -  The hardware accepts Dolby Digital ATSC A/52 audio.
+          Also known as AC-3.
+
+Description
+~~~~~~~~~~~
+
+A call to `AUDIO_GET_CAPABILITIES`_ returns an unsigned integer with the
+following bits set according to the hardwares capabilities.
+
+
+-----
+
+
+Audio Function Calls
+====================
+
+
+AUDIO_STOP
+----------
+
+Synopsis
+~~~~~~~~
+
+.. c:macro:: AUDIO_STOP
+
+.. code-block:: c
+
+	 int ioctl(int fd, int request = AUDIO_STOP)
+
+Arguments
+~~~~~~~~~
+
+.. flat-table::
+    :header-rows:  0
+    :stub-columns: 0
+
+    -  ..
+
+       -  ``int fd``
+
+       -  File descriptor returned by a previous call to `open()`_.
+
+    -  ..
+
+       -  ``int request``
+
+       -  :cspan:`1` Equals ``AUDIO_STOP`` for this command.
+
+Description
+~~~~~~~~~~~
+
+.. attention:: Do **not** use in new drivers!
+             See: :ref:`legacy_dvb_decoder_notes`
+
+This ioctl call asks the Audio Device to stop playing the current
+stream.
+
+Return Value
+~~~~~~~~~~~~
+
+On success 0 is returned, on error -1 and the ``errno`` variable is set
+appropriately. The generic error codes are described at the
+:ref:`Generic Error Codes <gen-errors>` chapter.
+
+
+-----
+
+
+AUDIO_PLAY
+----------
+
+Synopsis
+~~~~~~~~
+
+.. c:macro:: AUDIO_PLAY
+
+.. code-block:: c
+
+	 int  ioctl(int fd, int request = AUDIO_PLAY)
+
+Arguments
+~~~~~~~~~
+
+.. flat-table::
+    :header-rows:  0
+    :stub-columns: 0
+
+    -  ..
+
+       -  ``int fd``
+
+       -  File descriptor returned by a previous call to `open()`_.
+
+    -  ..
+
+       -  ``int request``
+
+       -  :cspan:`1` Equals ``AUDIO_PLAY`` for this command.
+
+Description
+~~~~~~~~~~~
+
+.. attention:: Do **not** use in new drivers!
+             See: :ref:`legacy_dvb_decoder_notes`
+
+This ioctl call asks the Audio Device to start playing an audio stream
+from the selected source.
+
+Return Value
+~~~~~~~~~~~~
+
+On success 0 is returned, on error -1 and the ``errno`` variable is set
+appropriately. The generic error codes are described at the
+:ref:`Generic Error Codes <gen-errors>` chapter.
+
+
+-----
+
+
+AUDIO_PAUSE
+-----------
+
+Synopsis
+~~~~~~~~
+
+.. c:macro:: AUDIO_PAUSE
+
+.. code-block:: c
+
+	 int  ioctl(int fd, int request = AUDIO_PAUSE)
+
+Arguments
+~~~~~~~~~
+
+.. flat-table::
+    :header-rows:  0
+    :stub-columns: 0
+
+    -  ..
+
+       -  ``int fd``
+
+       -  :cspan:`1` File descriptor returned by a previous call
+          to `open()`_.
+
+    -  ..
+
+       -  ``int request``
+
+       -  Equals ``AUDIO_PAUSE`` for this command.
+
+Description
+~~~~~~~~~~~
+
+.. attention:: Do **not** use in new drivers!
+             See: :ref:`legacy_dvb_decoder_notes`
+
+This ioctl call suspends the audio stream being played. Decoding and
+playing are paused. It is then possible to restart again decoding and
+playing process of the audio stream using `AUDIO_CONTINUE`_ command.
+
+Return Value
+~~~~~~~~~~~~
+
+On success 0 is returned, on error -1 and the ``errno`` variable is set
+appropriately. The generic error codes are described at the
+:ref:`Generic Error Codes <gen-errors>` chapter.
+
+
+-----
+
+
+AUDIO_CONTINUE
+--------------
+
+Synopsis
+~~~~~~~~
+
+.. c:macro:: AUDIO_CONTINUE
+
+.. code-block:: c
+
+	 int  ioctl(int fd, int request = AUDIO_CONTINUE)
+
+Arguments
+~~~~~~~~~
+
+.. flat-table::
+    :header-rows:  0
+    :stub-columns: 0
+
+    -  ..
+
+       -  ``int fd``
+
+       -  :cspan:`1` File descriptor returned by a previous call
+          to `open()`_.
+
+    -  ..
+
+       -  ``int request``
+
+       -  Equals ``AUDIO_CONTINUE`` for this command.
+
+Description
+~~~~~~~~~~~
+
+.. attention:: Do **not** use in new drivers!
+             See: :ref:`legacy_dvb_decoder_notes`
+
+This ioctl restarts the decoding and playing process previously paused
+with `AUDIO_PAUSE`_ command.
+
+Return Value
+~~~~~~~~~~~~
+
+On success 0 is returned, on error -1 and the ``errno`` variable is set
+appropriately. The generic error codes are described at the
+:ref:`Generic Error Codes <gen-errors>` chapter.
+
+
+-----
+
+
+AUDIO_SELECT_SOURCE
+-------------------
+
+Synopsis
+~~~~~~~~
+
+.. c:macro:: AUDIO_SELECT_SOURCE
+
+.. code-block:: c
+
+	 int ioctl(int fd, int request = AUDIO_SELECT_SOURCE,
+	 audio_stream_source_t source)
+
+Arguments
+~~~~~~~~~
+
+.. flat-table::
+    :header-rows:  0
+    :stub-columns: 0
+
+    -  ..
+
+       -  ``int fd``
+
+       -  :cspan:`1` File descriptor returned by a previous call
+          to `open()`_.
+
+    -  ..
+
+       -  ``int request``
+
+       -  Equals ``AUDIO_SELECT_SOURCE`` for this command.
+
+    -  ..
+
+       -  `audio_stream_source_t`_ ``source``
+
+       -  Indicates the source that shall be used for the Audio stream.
+
+Description
+~~~~~~~~~~~
+
+.. attention:: Do **not** use in new drivers!
+             See: :ref:`legacy_dvb_decoder_notes`
+
+This ioctl call informs the audio device which source shall be used for
+the input data. The possible sources are demux or memory. If
+``AUDIO_SOURCE_MEMORY`` is selected, the data is fed to the Audio Device
+through the write command. If ``AUDIO_SOURCE_DEMUX`` is selected, the data
+is directly transferred from the onboard demux-device to the decoder.
+Note: This only supports DVB-devices with one demux and one decoder so far.
+
+Return Value
+~~~~~~~~~~~~
+
+On success 0 is returned, on error -1 and the ``errno`` variable is set
+appropriately. The generic error codes are described at the
+:ref:`Generic Error Codes <gen-errors>` chapter.
+
+
+-----
+
+
+AUDIO_SET_MUTE
+--------------
+
+Synopsis
+~~~~~~~~
+
+.. c:macro:: AUDIO_SET_MUTE
+
+.. code-block:: c
+
+	 int  ioctl(int fd, int request = AUDIO_SET_MUTE, int state)
+
+Arguments
+~~~~~~~~~
+
+.. flat-table::
+    :header-rows:  0
+    :stub-columns: 0
+
+    -  ..
+
+       -  ``int fd``
+
+       -  :cspan:`1` File descriptor returned by a previous call
+          to `open()`_.
+
+    -  ..
+
+       -  ``int request``
+
+       -  :cspan:`1` Equals ``AUDIO_SET_MUTE`` for this command.
+
+    -  ..
+
+       -  :rspan:`2` ``int state``
+
+       -  :cspan:`1` Indicates if audio device shall mute or not.
+
+    -  ..
+
+       -  TRUE  ( != 0 )
+
+       -  mute audio
+
+    -  ..
+
+       -  FALSE ( == 0 )
+
+       -  unmute audio
+
+Description
+~~~~~~~~~~~
+
+.. attention:: Do **not** use in new drivers!
+             See: :ref:`legacy_dvb_decoder_notes`
+
+This ioctl is for DVB devices only. To control a V4L2 decoder use the
+V4L2 :ref:`VIDIOC_DECODER_CMD` with the
+``V4L2_DEC_CMD_START_MUTE_AUDIO`` flag instead.
+
+This ioctl call asks the audio device to mute the stream that is
+currently being played.
+
+Return Value
+~~~~~~~~~~~~
+
+On success 0 is returned, on error -1 and the ``errno`` variable is set
+appropriately. The generic error codes are described at the
+:ref:`Generic Error Codes <gen-errors>` chapter.
+
+
+-----
+
+
+AUDIO_SET_AV_SYNC
+-----------------
+
+Synopsis
+~~~~~~~~
+
+.. c:macro:: AUDIO_SET_AV_SYNC
+
+.. code-block:: c
+
+	 int  ioctl(int fd, int request = AUDIO_SET_AV_SYNC, int state)
+
+Arguments
+~~~~~~~~~
+
+.. flat-table::
+    :header-rows:  0
+    :stub-columns: 0
+
+    -  ..
+
+       -  ``int fd``
+
+       -  :cspan:`1` File descriptor returned by a previous call
+          to `open()`_.
+
+    -  ..
+
+       -  ``int request``
+
+       -  :cspan:`1` Equals ``AUDIO_AV_SYNC`` for this command.
+
+    -  ..
+
+       -  :rspan:`2` ``int state``
+
+       -  :cspan:`1` Tells the DVB subsystem if A/V synchronization
+          shall be ON or OFF.
+
+    -  ..
+
+       -  TRUE  ( != 0 )
+
+       -  AV-sync ON.
+
+    -  ..
+
+       -  FALSE ( == 0 )
+
+       -  AV-sync OFF.
+
+Description
+~~~~~~~~~~~
+
+.. attention:: Do **not** use in new drivers!
+             See: :ref:`legacy_dvb_decoder_notes`
+
+This ioctl call asks the Audio Device to turn ON or OFF A/V
+synchronization.
+
+Return Value
+~~~~~~~~~~~~
+
+On success 0 is returned, on error -1 and the ``errno`` variable is set
+appropriately. The generic error codes are described at the
+:ref:`Generic Error Codes <gen-errors>` chapter.
+
+
+-----
+
+
+AUDIO_SET_BYPASS_MODE
+---------------------
+
+Synopsis
+~~~~~~~~
+
+.. c:macro:: AUDIO_SET_BYPASS_MODE
+
+.. code-block:: c
+
+	 int ioctl(int fd, int request = AUDIO_SET_BYPASS_MODE, int mode)
+
+Arguments
+~~~~~~~~~
+
+.. flat-table::
+    :header-rows:  0
+    :stub-columns: 0
+
+    -  ..
+
+       -  ``int fd``
+
+       -  :cspan:`1` File descriptor returned by a previous call
+          to `open()`_.
+
+    -  ..
+
+       -  ``int request``
+
+       -  :cspan:`1` Equals ``AUDIO_SET_BYPASS_MODE`` for this command.
+
+    -  ..
+
+       -  :rspan:`2` ``int mode``
+
+       -  :cspan:`1` Enables or disables the decoding of the current
+          Audio stream in the DVB subsystem.
+    -  ..
+
+       -  TRUE  ( != 0 )
+
+       -  Disable bypass
+
+    -  ..
+
+       -  FALSE ( == 0 )
+
+       -  Enable bypass
+
+Description
+~~~~~~~~~~~
+
+.. attention:: Do **not** use in new drivers!
+             See: :ref:`legacy_dvb_decoder_notes`
+
+This ioctl call asks the Audio Device to bypass the Audio decoder and
+forward the stream without decoding. This mode shall be used if streams
+that can’t be handled by the DVB system shall be decoded. Dolby
+DigitalTM streams are automatically forwarded by the DVB subsystem if
+the hardware can handle it.
+
+Return Value
+~~~~~~~~~~~~
+
+On success 0 is returned, on error -1 and the ``errno`` variable is set
+appropriately. The generic error codes are described at the
+:ref:`Generic Error Codes <gen-errors>` chapter.
+
+
+-----
+
+
+AUDIO_CHANNEL_SELECT
+--------------------
+
+Synopsis
+~~~~~~~~
+
+.. c:macro:: AUDIO_CHANNEL_SELECT
+
+.. code-block:: c
+
+	 int ioctl(int fd, int request = AUDIO_CHANNEL_SELECT,
+	 audio_channel_select_t)
+
+Arguments
+~~~~~~~~~
+
+.. flat-table::
+    :header-rows:  0
+    :stub-columns: 0
+
+    -  ..
+
+       -  ``int fd``
+
+       -  :cspan:`1` File descriptor returned by a previous call
+          to `open()`_.
+
+    -  ..
+
+       -  ``int request``
+
+       -  Equals ``AUDIO_CHANNEL_SELECT`` for this command.
+
+    -  ..
+
+       -  `audio_channel_select_t`_ ``ch``
+
+       -  Select the output format of the audio (mono left/right, stereo).
+
+Description
+~~~~~~~~~~~
+
+.. attention:: Do **not** use in new drivers!
+             See: :ref:`legacy_dvb_decoder_notes`
+
+This ioctl is for DVB devices only. To control a V4L2 decoder use the
+V4L2 ``V4L2_CID_MPEG_AUDIO_DEC_PLAYBACK`` control instead.
+
+This ioctl call asks the Audio Device to select the requested channel if
+possible.
+
+Return Value
+~~~~~~~~~~~~
+
+On success 0 is returned, on error -1 and the ``errno`` variable is set
+appropriately. The generic error codes are described at the
+:ref:`Generic Error Codes <gen-errors>` chapter.
+
+
+-----
+
+
+AUDIO_GET_STATUS
+----------------
+
+Synopsis
+~~~~~~~~
+
+.. c:macro:: AUDIO_GET_STATUS
+
+.. code-block:: c
+
+	 int ioctl(int fd, int request = AUDIO_GET_STATUS,
+	 struct audio_status *status)
+
+Arguments
+~~~~~~~~~
+
+.. flat-table::
+    :header-rows:  0
+    :stub-columns: 0
+
+    -  ..
+
+       -  ``int fd``
+
+       -  :cspan:`1` File descriptor returned by a previous call
+          to `open()`_.
+
+    -  ..
+
+       -  ``int request``
+
+       -  Equals AUDIO_GET_STATUS for this command.
+
+    -  ..
+
+       -  ``struct`` `audio_status`_ ``*status``
+
+       -  Returns the current state of Audio Device.
+
+Description
+~~~~~~~~~~~
+
+.. attention:: Do **not** use in new drivers!
+             See: :ref:`legacy_dvb_decoder_notes`
+
+This ioctl call asks the Audio Device to return the current state of the
+Audio Device.
+
+Return Value
+~~~~~~~~~~~~
+
+On success 0 is returned, on error -1 and the ``errno`` variable is set
+appropriately. The generic error codes are described at the
+:ref:`Generic Error Codes <gen-errors>` chapter.
+
+
+-----
+
+
+AUDIO_GET_CAPABILITIES
+----------------------
+
+Synopsis
+~~~~~~~~
+
+.. c:macro:: AUDIO_GET_CAPABILITIES
+
+.. code-block:: c
+
+	 int ioctl(int fd, int request = AUDIO_GET_CAPABILITIES,
+	 unsigned int *cap)
+
+Arguments
+~~~~~~~~~
+
+.. flat-table::
+    :header-rows:  0
+    :stub-columns: 0
+
+    -  ..
+
+       -  ``int fd``
+
+       -  :cspan:`1` File descriptor returned by a previous call
+          to `open()`_.
+
+    -  ..
+
+       -  ``int request``
+
+       -  Equals ``AUDIO_GET_CAPABILITIES`` for this command.
+
+    -  ..
+
+       -  ``unsigned int *cap``
+
+       -  Returns a bit array of supported sound formats.
+          Bits are defined in `audio encodings`_.
+
+Description
+~~~~~~~~~~~
+
+.. attention:: Do **not** use in new drivers!
+             See: :ref:`legacy_dvb_decoder_notes`
+
+This ioctl call asks the Audio Device to tell us about the decoding
+capabilities of the audio hardware.
+
+Return Value
+~~~~~~~~~~~~
+
+On success 0 is returned, on error -1 and the ``errno`` variable is set
+appropriately. The generic error codes are described at the
+:ref:`Generic Error Codes <gen-errors>` chapter.
+
+
+-----
+
+
+AUDIO_CLEAR_BUFFER
+------------------
+
+Synopsis
+~~~~~~~~
+
+.. c:macro:: AUDIO_CLEAR_BUFFER
+
+.. code-block:: c
+
+	 int  ioctl(int fd, int request = AUDIO_CLEAR_BUFFER)
+
+Arguments
+~~~~~~~~~
+
+.. flat-table::
+    :header-rows:  0
+    :stub-columns: 0
+
+    -  ..
+
+       -  ``int fd``
+
+       -  :cspan:`1` File descriptor returned by a previous call
+          to `open()`_.
+
+    -  ..
+
+       -  ``int request``
+
+       -  Equals ``AUDIO_CLEAR_BUFFER`` for this command.
+
+Description
+~~~~~~~~~~~
+
+.. attention:: Do **not** use in new drivers!
+             See: :ref:`legacy_dvb_decoder_notes`
+
+This ioctl call asks the Audio Device to clear all software and hardware
+buffers of the audio decoder device.
+
+Return Value
+~~~~~~~~~~~~
+
+On success 0 is returned, on error -1 and the ``errno`` variable is set
+appropriately. The generic error codes are described at the
+:ref:`Generic Error Codes <gen-errors>` chapter.
+
+
+-----
+
+
+AUDIO_SET_ID
+------------
+
+Synopsis
+~~~~~~~~
+
+.. c:macro:: AUDIO_SET_ID
+
+.. code-block:: c
+
+	 int  ioctl(int fd, int request = AUDIO_SET_ID, int id)
+
+Arguments
+~~~~~~~~~
+
+.. flat-table::
+    :header-rows:  0
+    :stub-columns: 0
+
+    -  ..
+
+       -  ``int fd``
+
+       -  :cspan:`1` File descriptor returned by a previous call
+          to `open()`_.
+
+    -  ..
+
+       -  ``int request``
+
+       -  Equals ``AUDIO_SET_ID`` for this command.
+
+    -  ..
+
+       -  ``int id``
+
+       -  Audio sub-stream id.
+
+Description
+~~~~~~~~~~~
+
+.. attention:: Do **not** use in new drivers!
+             See: :ref:`legacy_dvb_decoder_notes`
+
+This ioctl selects which sub-stream is to be decoded if a program or
+system stream is sent to the video device.
+
+If no audio stream type is set the id has to be in range [0xC0,0xDF]
+for MPEG sound, in [0x80,0x87] for AC3 and in [0xA0,0xA7] for LPCM.
+See ITU-T H.222.0 | ISO/IEC 13818-1 for further description.
+
+If the stream type is set with `AUDIO_SET_STREAMTYPE`_, specifies the
+id just the sub-stream id of the audio stream and only the first 5 bits
+(& 0x1F) are recognized.
+
+Return Value
+~~~~~~~~~~~~
+
+On success 0 is returned, on error -1 and the ``errno`` variable is set
+appropriately. The generic error codes are described at the
+:ref:`Generic Error Codes <gen-errors>` chapter.
+
+
+-----
+
+
+AUDIO_SET_MIXER
+---------------
+
+Synopsis
+~~~~~~~~
+
+.. c:macro:: AUDIO_SET_MIXER
+
+.. code-block:: c
+
+	 int ioctl(int fd, int request = AUDIO_SET_MIXER, audio_mixer_t *mix)
+
+Arguments
+~~~~~~~~~
+
+.. flat-table::
+    :header-rows:  0
+    :stub-columns: 0
+
+    -  ..
+
+       -  ``int fd``
+
+       -  :cspan:`1` File descriptor returned by a previous call
+          to `open()`_.
+
+    -  ..
+
+       -  ``int request``
+
+       -  Equals ``AUDIO_SET_MIXER`` for this command.
+
+    -  ..
+
+       -  ``audio_mixer_t *mix``
+
+       -  Mixer settings.
+
+Description
+~~~~~~~~~~~
+
+.. attention:: Do **not** use in new drivers!
+             See: :ref:`legacy_dvb_decoder_notes`
+
+This ioctl lets you adjust the mixer settings of the audio decoder.
+
+Return Value
+~~~~~~~~~~~~
+
+On success 0 is returned, on error -1 and the ``errno`` variable is set
+appropriately. The generic error codes are described at the
+:ref:`Generic Error Codes <gen-errors>` chapter.
+
+
+-----
+
+
+AUDIO_SET_STREAMTYPE
+--------------------
+
+Synopsis
+~~~~~~~~
+
+.. c:macro:: AUDIO_SET_STREAMTYPE
+
+.. code-block:: c
+
+	 int  ioctl(fd, int request = AUDIO_SET_STREAMTYPE, int type)
+
+Arguments
+~~~~~~~~~
+
+.. flat-table::
+    :header-rows:  0
+    :stub-columns: 0
+
+    -  ..
+
+       -  ``int fd``
+
+       -  :cspan:`1` File descriptor returned by a previous call
+          to `open()`_.
+
+    -  ..
+
+       -  ``int request``
+
+       -  Equals ``AUDIO_SET_STREAMTYPE`` for this command.
+
+    -  ..
+
+       -  ``int type``
+
+       -  Stream type.
+
+Description
+~~~~~~~~~~~
+
+.. attention:: Do **not** use in new drivers!
+             See: :ref:`legacy_dvb_decoder_notes`
+
+This ioctl tells the driver which kind of audio stream to expect. This
+is useful if the stream offers several audio sub-streams like LPCM and
+AC3.
+
+Stream types defined in ITU-T H.222.0 | ISO/IEC 13818-1 are used.
+
+
+Return Value
+~~~~~~~~~~~~
+
+On success 0 is returned, on error -1 and the ``errno`` variable is set
+appropriately. The generic error codes are described at the
+:ref:`Generic Error Codes <gen-errors>` chapter.
+
+.. flat-table::
+    :header-rows:  0
+    :stub-columns: 0
+
+    -  ..
+
+       -  ``EINVAL``
+
+       -  Type is not a valid or supported stream type.
+
+
+-----
+
+
+AUDIO_BILINGUAL_CHANNEL_SELECT
+------------------------------
+
+Synopsis
+~~~~~~~~
+
+.. c:macro:: AUDIO_BILINGUAL_CHANNEL_SELECT
+
+.. code-block:: c
+
+	 int ioctl(int fd, int request = AUDIO_BILINGUAL_CHANNEL_SELECT,
+	 audio_channel_select_t)
+
+Arguments
+~~~~~~~~~
+
+.. flat-table::
+    :header-rows:  0
+    :stub-columns: 0
+
+    -  ..
+
+       -  ``int fd``
+
+       -  :cspan:`1` File descriptor returned by a previous call
+          to `open()`_.
+
+    -  ..
+
+       -  ``int request``
+
+       -  Equals ``AUDIO_BILINGUAL_CHANNEL_SELECT`` for this command.
+
+    -  ..
+
+       -  ``audio_channel_select_t ch``
+
+       -  Select the output format of the audio (mono left/right, stereo).
+
+Description
+~~~~~~~~~~~
+
+.. attention:: Do **not** use in new drivers!
+             See: :ref:`legacy_dvb_decoder_notes`
+
+This ioctl has been replaced by the V4L2
+``V4L2_CID_MPEG_AUDIO_DEC_MULTILINGUAL_PLAYBACK`` control
+for MPEG decoders controlled through V4L2.
+
+This ioctl call asks the Audio Device to select the requested channel
+for bilingual streams if possible.
+
+Return Value
+~~~~~~~~~~~~
+
+On success 0 is returned, on error -1 and the ``errno`` variable is set
+appropriately. The generic error codes are described at the
+:ref:`Generic Error Codes <gen-errors>` chapter.
+
+
+-----
+
+
+open()
+------
+
+Synopsis
+~~~~~~~~
+
+.. code-block:: c
+
+    #include <fcntl.h>
+
+.. c:function:: int  open(const char *deviceName, int flags)
+
+Arguments
+~~~~~~~~~
+
+.. flat-table::
+    :header-rows:  0
+    :stub-columns: 0
+
+    -  ..
+
+       -  ``const char *deviceName``
+
+       -  Name of specific audio device.
+
+    -  ..
+
+       -  :rspan:`3` ``int flags``
+
+       -  :cspan:`1` A bit-wise OR of the following flags:
+
+    -  ..
+
+       -  ``O_RDONLY``
+
+       -  read-only access
+
+    -  ..
+
+       -  ``O_RDWR``
+
+       -  read/write access
+
+    -  ..
+
+       -  ``O_NONBLOCK``
+       -  | Open in non-blocking mode
+          | (blocking mode is the default)
+
+Description
+~~~~~~~~~~~
+
+This system call opens a named audio device (e.g.
+``/dev/dvb/adapter0/audio0``) for subsequent use. When an open() call has
+succeeded, the device will be ready for use. The significance of
+blocking or non-blocking mode is described in the documentation for
+functions where there is a difference. It does not affect the semantics
+of the open() call itself. A device opened in blocking mode can later be
+put into non-blocking mode (and vice versa) using the F_SETFL command
+of the fcntl system call. This is a standard system call, documented in
+the Linux manual page for fcntl. Only one user can open the Audio Device
+in O_RDWR mode. All other attempts to open the device in this mode will
+fail, and an error code will be returned. If the Audio Device is opened
+in O_RDONLY mode, the only ioctl call that can be used is
+`AUDIO_GET_STATUS`_. All other call will return with an error code.
+
+Return Value
+~~~~~~~~~~~~
+
+.. flat-table::
+    :header-rows:  0
+    :stub-columns: 0
+
+    -  ..
+
+       -  ``ENODEV``
+
+       -  Device driver not loaded/available.
+
+    -  ..
+
+       -  ``EBUSY``
+
+       -  Device or resource busy.
+
+    -  ..
+
+       -  ``EINVAL``
+
+       -  Invalid argument.
+
+
+-----
+
+
+close()
+-------
+
+Synopsis
+~~~~~~~~
+
+.. c:function:: 	int close(int fd)
+
+Arguments
+~~~~~~~~~
+
+.. flat-table::
+    :header-rows:  0
+    :stub-columns: 0
+
+    -  ..
+
+       -  ``int fd``
+
+       -  :cspan:`1` File descriptor returned by a previous call
+          to `open()`_.
+
+Description
+~~~~~~~~~~~
+
+This system call closes a previously opened audio device.
+
+Return Value
+~~~~~~~~~~~~
+
+.. flat-table::
+    :header-rows:  0
+    :stub-columns: 0
+
+    -  ..
+
+       -  ``EBADF``
+
+       -  Fd is not a valid open file descriptor.
+
+-----
+
+
+write()
+-------
+
+Synopsis
+~~~~~~~~
+
+.. code-block:: c
+
+	 size_t write(int fd, const void *buf, size_t count)
+
+Arguments
+~~~~~~~~~
+
+.. flat-table::
+    :header-rows:  0
+    :stub-columns: 0
+
+    -  ..
+
+       -  ``int fd``
+
+       -  :cspan:`1` File descriptor returned by a previous call
+          to `open()`_.
+
+    -  ..
+
+       -  ``void *buf``
+
+       -  Pointer to the buffer containing the PES data.
+
+    -  ..
+
+       -  ``size_t count``
+
+       -  Size of buf.
+
+Description
+~~~~~~~~~~~
+
+This system call can only be used if ``AUDIO_SOURCE_MEMORY`` is selected
+in the ioctl call `AUDIO_SELECT_SOURCE`_. The data provided shall be in
+PES format. If ``O_NONBLOCK`` is not specified the function will block
+until buffer space is available. The amount of data to be transferred is
+implied by count.
+
+Return Value
+~~~~~~~~~~~~
+
+.. flat-table::
+    :header-rows:  0
+    :stub-columns: 0
+
+    -  ..
+
+       -  ``EPERM``
+
+       -  :cspan:`1` Mode ``AUDIO_SOURCE_MEMORY`` not selected.
+
+    -  ..
+
+       -  ``ENOMEM``
+
+       -  Attempted to write more data than the internal buffer can hold.
+
+    -  ..
+
+       -  ``EBADF``
+
+       -  Fd is not a valid open file descriptor.
diff --git a/Documentation/userspace-api/media/dvb/legacy_dvb_decoder_api.rst b/Documentation/userspace-api/media/dvb/legacy_dvb_decoder_api.rst
new file mode 100644
index 0000000000..f58985a6e6
--- /dev/null
+++ b/Documentation/userspace-api/media/dvb/legacy_dvb_decoder_api.rst
@@ -0,0 +1,61 @@
+.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later OR GPL-2.0
+
+.. _legacy_dvb_decoder_api:
+
+============================
+Legacy DVB MPEG Decoder APIs
+============================
+
+.. _legacy_dvb_decoder_notes:
+
+General Notes
+=============
+
+This API has originally been designed for DVB only and is therefore limited to
+the :ref:`legacy_dvb_decoder_formats` used in such digital TV-broadcastsystems.
+
+To circumvent this limitations the more versatile :ref:`V4L2 <v4l2spec>` API has
+been designed. Which replaces this part of the DVB API.
+
+Nevertheless there have been projects build around this API.
+To ensure compatibility this API is kept as it is.
+
+.. attention:: Do **not** use this API in new drivers!
+
+    For audio and video use the :ref:`V4L2 <v4l2spec>` and ALSA APIs.
+
+    Pipelines should be set up using the :ref:`Media Controller  API<media_controller>`.
+
+Practically the decoders seem to be treated differently. The application typically
+knows which decoder is in use or it is specially written for one decoder type.
+Querying capabilities are rarely used because they are already known.
+
+
+.. _legacy_dvb_decoder_formats:
+
+Data Formats
+============
+
+The API has been designed for DVB and compatible broadcastsystems.
+Because of that fact the only supported data formats are ISO/IEC 13818-1
+compatible MPEG streams. The supported payloads may vary depending on the
+used decoder.
+
+Timestamps are always MPEG PTS as defined in ITU T-REC-H.222.0 /
+ISO/IEC 13818-1, if not otherwise noted.
+
+For storing recordings typically TS streams are used, in lesser extent PES.
+Both variants are commonly accepted for playback, but it may be driver dependent.
+
+
+
+
+Table of Contents
+=================
+
+.. toctree::
+    :maxdepth: 2
+
+    legacy_dvb_video
+    legacy_dvb_audio
+    legacy_dvb_osd
diff --git a/Documentation/userspace-api/media/dvb/legacy_dvb_osd.rst b/Documentation/userspace-api/media/dvb/legacy_dvb_osd.rst
new file mode 100644
index 0000000000..179b66a801
--- /dev/null
+++ b/Documentation/userspace-api/media/dvb/legacy_dvb_osd.rst
@@ -0,0 +1,883 @@
+.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later OR GPL-2.0
+
+.. c:namespace:: dtv.legacy.osd
+
+.. _dvb_osd:
+
+==============
+DVB OSD Device
+==============
+
+.. attention:: Do **not** use in new drivers!
+             See: :ref:`legacy_dvb_decoder_notes`
+
+The DVB OSD device controls the OnScreen-Display of the AV7110 based
+DVB-cards with hardware MPEG2 decoder. It can be accessed through
+``/dev/dvb/adapter?/osd0``.
+Data types and ioctl definitions can be accessed by including
+``linux/dvb/osd.h`` in your application.
+
+The OSD is not a frame-buffer like on many other cards.
+It is a kind of canvas one can draw on.
+The color-depth is limited depending on the memory size installed.
+An appropriate palette of colors has to be set up.
+The installed memory size can be identified with the `OSD_GET_CAPABILITY`_
+ioctl.
+
+OSD Data Types
+==============
+
+OSD_Command
+-----------
+
+Synopsis
+~~~~~~~~
+
+.. code-block:: c
+
+    typedef enum {
+	/* All functions return -2 on "not open" */
+	OSD_Close = 1,
+	OSD_Open,
+	OSD_Show,
+	OSD_Hide,
+	OSD_Clear,
+	OSD_Fill,
+	OSD_SetColor,
+	OSD_SetPalette,
+	OSD_SetTrans,
+	OSD_SetPixel,
+	OSD_GetPixel,
+	OSD_SetRow,
+	OSD_SetBlock,
+	OSD_FillRow,
+	OSD_FillBlock,
+	OSD_Line,
+	OSD_Query,
+	OSD_Test,
+	OSD_Text,
+	OSD_SetWindow,
+	OSD_MoveWindow,
+	OSD_OpenRaw,
+    } OSD_Command;
+
+Commands
+~~~~~~~~
+
+.. note::  All functions return -2 on "not open"
+
+.. flat-table::
+    :header-rows:  1
+    :stub-columns: 0
+
+    -  ..
+
+       -  Command
+
+       -  | Used variables of ``struct`` `osd_cmd_t`_.
+          | Usage{variable} if alternative use.
+
+       -  :cspan:`2` Description
+
+
+
+    -  ..
+
+       -  ``OSD_Close``
+
+       -  -
+
+       -  | Disables OSD and releases the buffers.
+          | Returns 0 on success.
+
+    -  ..
+
+       -  ``OSD_Open``
+
+       -  | x0,y0,x1,y1,
+          | BitPerPixel[2/4/8]{color&0x0F},
+          | mix[0..15]{color&0xF0}
+
+       -  | Opens OSD with this size and bit depth
+          | Returns 0 on success,
+          | -1 on DRAM allocation error,
+          | -2 on "already open".
+
+    -  ..
+
+       -  ``OSD_Show``
+
+       - -
+
+       -  | Enables OSD mode.
+          | Returns 0 on success.
+
+    -  ..
+
+       -  ``OSD_Hide``
+
+       - -
+
+       -  | Disables OSD mode.
+          | Returns 0 on success.
+
+    -  ..
+
+       -  ``OSD_Clear``
+
+       - -
+
+       -  | Sets all pixel to color 0.
+          | Returns 0 on success.
+
+    -  ..
+
+       -  ``OSD_Fill``
+
+       -  color
+
+       -  | Sets all pixel to color <color>.
+          | Returns 0 on success.
+
+    -  ..
+
+       -  ``OSD_SetColor``
+
+       -  | color,
+          | R{x0},G{y0},B{x1},
+          | opacity{y1}
+
+       -  | Set palette entry <num> to <r,g,b>, <mix> and <trans> apply
+          | R,G,B: 0..255
+          | R=Red, G=Green, B=Blue
+          | opacity=0:      pixel opacity 0% (only video pixel shows)
+          | opacity=1..254: pixel opacity as specified in header
+          | opacity=255:    pixel opacity 100% (only OSD pixel shows)
+          | Returns 0 on success, -1 on error.
+
+    -  ..
+
+       -  ``OSD_SetPalette``
+
+       -  | firstcolor{color},
+          | lastcolor{x0},data
+
+       -  | Set a number of entries in the palette.
+          | Sets the entries "firstcolor" through "lastcolor" from the
+            array "data".
+          | Data has 4 byte for each color:
+          | R,G,B, and a opacity value: 0->transparent, 1..254->mix,
+            255->pixel
+
+    -  ..
+
+       -  ``OSD_SetTrans``
+
+       -  transparency{color}
+
+       -  | Sets transparency of mixed pixel (0..15).
+          | Returns 0 on success.
+
+    -  ..
+
+       -  ``OSD_SetPixel``
+
+       -  x0,y0,color
+
+       -  | Sets pixel <x>,<y> to color number <color>.
+          | Returns 0 on success, -1 on error.
+
+    -  ..
+
+       -  ``OSD_GetPixel``
+
+       -  x0,y0
+
+       -  | Returns color number of pixel <x>,<y>,  or -1.
+          | Command currently not supported by the AV7110!
+
+    -  ..
+
+       -  ``OSD_SetRow``
+
+       -  x0,y0,x1,data
+
+       -  | Fills pixels x0,y through  x1,y with the content of data[].
+          | Returns 0 on success, -1 on clipping all pixel (no pixel
+            drawn).
+
+    -  ..
+
+       -  ``OSD_SetBlock``
+
+       -  | x0,y0,x1,y1,
+          | increment{color},
+          | data
+
+       -  | Fills pixels x0,y0 through  x1,y1 with the content of data[].
+          | Inc contains the width of one line in the data block,
+          | inc<=0 uses block width as line width.
+          | Returns 0 on success, -1 on clipping all pixel.
+
+    -  ..
+
+       -  ``OSD_FillRow``
+
+       -  x0,y0,x1,color
+
+       -  | Fills pixels x0,y through  x1,y with the color <color>.
+          | Returns 0 on success, -1 on clipping all pixel.
+
+    -  ..
+
+       -  ``OSD_FillBlock``
+
+       -  x0,y0,x1,y1,color
+
+       -  | Fills pixels x0,y0 through  x1,y1 with the color <color>.
+          | Returns 0 on success, -1 on clipping all pixel.
+
+    -  ..
+
+       -  ``OSD_Line``
+
+       -  x0,y0,x1,y1,color
+
+       -  | Draw a line from x0,y0 to x1,y1 with the color <color>.
+          | Returns 0 on success.
+
+    -  ..
+
+       -  ``OSD_Query``
+
+       -  | x0,y0,x1,y1,
+          | xasp{color}; yasp=11
+
+       -  | Fills parameters with the picture dimensions and the pixel
+            aspect ratio.
+          | Returns 0 on success.
+          | Command currently not supported by the AV7110!
+
+    -  ..
+
+       -  ``OSD_Test``
+
+       -  -
+
+       -  | Draws a test picture.
+          | For debugging purposes only.
+          | Returns 0 on success.
+    -  ..
+
+       -  ``OSD_Text``
+
+       -  x0,y0,size,color,text
+
+       -  Draws a text at position x0,y0 with the color <color>.
+
+    -  ..
+
+       -  ``OSD_SetWindow``
+
+       -  x0
+
+       -  Set window with number 0<x0<8 as current.
+
+    -  ..
+
+       -  ``OSD_MoveWindow``
+
+       -  x0,y0
+
+       -  Move current window to (x0, y0).
+
+    -  ..
+
+       -  ``OSD_OpenRaw``
+
+       -  | x0,y0,x1,y1,
+          | `osd_raw_window_t`_ {color}
+
+       -  Open other types of OSD windows.
+
+Description
+~~~~~~~~~~~
+
+The ``OSD_Command`` data type is used with the `OSD_SEND_CMD`_ ioctl to
+tell the driver which OSD_Command to execute.
+
+
+-----
+
+osd_cmd_t
+---------
+
+Synopsis
+~~~~~~~~
+
+.. code-block:: c
+
+    typedef struct osd_cmd_s {
+	OSD_Command cmd;
+	int x0;
+	int y0;
+	int x1;
+	int y1;
+	int color;
+	void __user *data;
+    } osd_cmd_t;
+
+Variables
+~~~~~~~~~
+
+.. flat-table::
+    :header-rows:  0
+    :stub-columns: 0
+
+    -  ..
+
+       -  ``OSD_Command cmd``
+
+       -  `OSD_Command`_ to be executed.
+
+    -  ..
+
+       -  ``int x0``
+
+       -  First horizontal position.
+
+    -  ..
+
+       -  ``int y0``
+
+       -  First vertical position.
+
+    -  ..
+
+       -  ``int x1``
+
+       -  Second horizontal position.
+
+    -  ..
+
+       -  ``int y1``
+
+       -  Second vertical position.
+
+    -  ..
+
+       -  ``int color``
+
+       -  Number of the color in the palette.
+
+    -  ..
+
+       -  ``void __user *data``
+
+       -  Command specific Data.
+
+Description
+~~~~~~~~~~~
+
+The ``osd_cmd_t`` data type is used with the `OSD_SEND_CMD`_ ioctl.
+It contains the data for the OSD_Command and the `OSD_Command`_ itself.
+The structure has to be passed to the driver and the components may be
+modified by it.
+
+
+-----
+
+
+osd_raw_window_t
+----------------
+
+Synopsis
+~~~~~~~~
+
+.. code-block:: c
+
+    typedef enum {
+	OSD_BITMAP1,
+	OSD_BITMAP2,
+	OSD_BITMAP4,
+	OSD_BITMAP8,
+	OSD_BITMAP1HR,
+	OSD_BITMAP2HR,
+	OSD_BITMAP4HR,
+	OSD_BITMAP8HR,
+	OSD_YCRCB422,
+	OSD_YCRCB444,
+	OSD_YCRCB444HR,
+	OSD_VIDEOTSIZE,
+	OSD_VIDEOHSIZE,
+	OSD_VIDEOQSIZE,
+	OSD_VIDEODSIZE,
+	OSD_VIDEOTHSIZE,
+	OSD_VIDEOTQSIZE,
+	OSD_VIDEOTDSIZE,
+	OSD_VIDEONSIZE,
+	OSD_CURSOR
+    } osd_raw_window_t;
+
+Constants
+~~~~~~~~~
+
+.. flat-table::
+    :header-rows:  0
+    :stub-columns: 0
+
+    -  ..
+
+       -  ``OSD_BITMAP1``
+
+       -  :cspan:`1` 1 bit bitmap
+
+    -  ..
+
+       -  ``OSD_BITMAP2``
+
+       -  2 bit bitmap
+
+    -  ..
+
+       -  ``OSD_BITMAP4``
+
+       -  4 bit bitmap
+
+    -  ..
+
+       -  ``OSD_BITMAP8``
+
+       -  8 bit bitmap
+
+    -  ..
+
+       -  ``OSD_BITMAP1HR``
+
+       -  1 Bit bitmap half resolution
+
+    -  ..
+
+       -  ``OSD_BITMAP2HR``
+
+       -  2 Bit bitmap half resolution
+
+    -  ..
+
+       -  ``OSD_BITMAP4HR``
+
+       -  4 Bit bitmap half resolution
+
+    -  ..
+
+       -  ``OSD_BITMAP8HR``
+
+       -  8 Bit bitmap half resolution
+
+    -  ..
+
+       -  ``OSD_YCRCB422``
+
+       -  4:2:2 YCRCB Graphic Display
+
+    -  ..
+
+       -  ``OSD_YCRCB444``
+
+       -  4:4:4 YCRCB Graphic Display
+
+    -  ..
+
+       -  ``OSD_YCRCB444HR``
+
+       -  4:4:4 YCRCB graphic half resolution
+
+    -  ..
+
+       -  ``OSD_VIDEOTSIZE``
+
+       -  True Size Normal MPEG Video Display
+
+    -  ..
+
+       -  ``OSD_VIDEOHSIZE``
+
+       -  MPEG Video Display Half Resolution
+
+    -  ..
+
+       -  ``OSD_VIDEOQSIZE``
+
+       -  MPEG Video Display Quarter Resolution
+
+    -  ..
+
+       -  ``OSD_VIDEODSIZE``
+
+       -  MPEG Video Display Double Resolution
+
+    -  ..
+
+       -  ``OSD_VIDEOTHSIZE``
+
+       -  True Size MPEG Video Display Half Resolution
+
+    -  ..
+
+       -  ``OSD_VIDEOTQSIZE``
+
+       -  True Size MPEG Video Display Quarter Resolution
+
+    -  ..
+
+       -  ``OSD_VIDEOTDSIZE``
+
+       -  True Size MPEG Video Display Double Resolution
+
+    -  ..
+
+       -  ``OSD_VIDEONSIZE``
+
+       -  Full Size MPEG Video Display
+
+    -  ..
+
+       -  ``OSD_CURSOR``
+
+       -  Cursor
+
+Description
+~~~~~~~~~~~
+
+The ``osd_raw_window_t`` data type is used with the `OSD_Command`_
+OSD_OpenRaw to tell the driver which type of OSD to open.
+
+
+-----
+
+
+osd_cap_t
+---------
+
+Synopsis
+~~~~~~~~
+
+.. code-block:: c
+
+    typedef struct osd_cap_s {
+	int  cmd;
+    #define OSD_CAP_MEMSIZE         1
+	long val;
+    } osd_cap_t;
+
+Variables
+~~~~~~~~~
+
+.. flat-table::
+    :header-rows:  0
+    :stub-columns: 0
+
+    -  ..
+
+       -  ``int  cmd``
+
+       -  Capability to query.
+
+    -  ..
+
+       -  ``long val``
+
+       -  Used to store the Data.
+
+Supported capabilities
+~~~~~~~~~~~~~~~~~~~~~~
+
+.. flat-table::
+    :header-rows:  0
+    :stub-columns: 0
+
+    -  ..
+
+       -  ``OSD_CAP_MEMSIZE``
+
+       -  Memory size installed on the card.
+
+Description
+~~~~~~~~~~~
+
+This structure of data used with the `OSD_GET_CAPABILITY`_ call.
+
+
+-----
+
+
+OSD Function Calls
+==================
+
+OSD_SEND_CMD
+------------
+
+Synopsis
+~~~~~~~~
+
+.. c:macro:: OSD_SEND_CMD
+
+.. code-block:: c
+
+    int ioctl(int fd, int request = OSD_SEND_CMD, enum osd_cmd_t *cmd)
+
+
+Arguments
+~~~~~~~~~
+
+.. flat-table::
+    :header-rows:  0
+    :stub-columns: 0
+
+    -  ..
+
+       -  ``int fd``
+
+       -  :cspan:`1` File descriptor returned by a previous call
+          to `open()`_.
+
+    -  ..
+
+       -  ``int request``
+
+       -  Pointer to the location of the structure `osd_cmd_t`_ for this
+          command.
+
+Description
+~~~~~~~~~~~
+
+.. attention:: Do **not** use in new drivers!
+             See: :ref:`legacy_dvb_decoder_notes`
+
+This ioctl sends the `OSD_Command`_ to the card.
+
+Return Value
+~~~~~~~~~~~~
+
+On success 0 is returned, on error -1 and the ``errno`` variable is set
+appropriately. The generic error codes are described at the
+:ref:`Generic Error Codes <gen-errors>` chapter.
+
+.. flat-table::
+    :header-rows:  0
+    :stub-columns: 0
+
+    -  ..
+
+       -  ``EINVAL``
+
+       -  Command is out of range.
+
+
+-----
+
+
+OSD_GET_CAPABILITY
+------------------
+
+Synopsis
+~~~~~~~~
+
+.. c:macro:: OSD_GET_CAPABILITY
+
+.. code-block:: c
+
+    int ioctl(int fd, int request = OSD_GET_CAPABILITY,
+    struct osd_cap_t *cap)
+
+Arguments
+~~~~~~~~~
+
+.. flat-table::
+    :header-rows:  0
+    :stub-columns: 0
+
+    -  ..
+
+       -  ``int fd``
+
+       -  :cspan:`1` File descriptor returned by a previous call
+          to `open()`_.
+
+    -  ..
+
+       -  ``int request``
+
+       -  Equals ``OSD_GET_CAPABILITY`` for this command.
+
+    -  ..
+
+       -  ``unsigned int *cap``
+
+       -  Pointer to the location of the structure `osd_cap_t`_ for this
+          command.
+
+Description
+~~~~~~~~~~~
+
+.. attention:: Do **not** use in new drivers!
+             See: :ref:`legacy_dvb_decoder_notes`
+
+This ioctl is used to get the capabilities of the OSD of the AV7110 based
+DVB-decoder-card in use.
+
+.. note::
+    The structure osd_cap_t has to be setup by the user and passed to the
+    driver.
+
+Return Value
+~~~~~~~~~~~~
+
+On success 0 is returned, on error -1 and the ``errno`` variable is set
+appropriately. The generic error codes are described at the
+:ref:`Generic Error Codes <gen-errors>` chapter.
+
+.. flat-table::
+    :header-rows:  0
+    :stub-columns: 0
+
+
+    -  ..
+
+       -  ``EINVAL``
+
+       -  Unsupported capability.
+
+
+-----
+
+
+open()
+------
+
+Synopsis
+~~~~~~~~
+
+.. code-block:: c
+
+    #include <fcntl.h>
+
+.. c:function:: int open(const char *deviceName, int flags)
+
+Arguments
+~~~~~~~~~
+
+.. flat-table::
+    :header-rows:  0
+    :stub-columns: 0
+
+    -  ..
+
+       -  ``const char *deviceName``
+
+       -  Name of specific OSD device.
+
+    -  ..
+
+       -  :rspan:`3` ``int flags``
+
+       -  :cspan:`1` A bit-wise OR of the following flags:
+
+    -  ..
+
+       -  ``O_RDONLY``
+
+       -  read-only access
+
+    -  ..
+
+       -  ``O_RDWR``
+
+       -  read/write access
+
+    -  ..
+
+       -  ``O_NONBLOCK``
+       -  | Open in non-blocking mode
+          | (blocking mode is the default)
+
+Description
+~~~~~~~~~~~
+
+This system call opens a named OSD device (e.g.
+``/dev/dvb/adapter?/osd0``) for subsequent use.
+
+Return Value
+~~~~~~~~~~~~
+
+.. flat-table::
+    :header-rows:  0
+    :stub-columns: 0
+
+    -  ..
+
+       -  ``ENODEV``
+
+       -  Device driver not loaded/available.
+
+    -  ..
+
+       -  ``EINTERNAL``
+
+       -  Internal error.
+
+    -  ..
+
+       -  ``EBUSY``
+
+       -  Device or resource busy.
+
+    -  ..
+
+       -  ``EINVAL``
+
+       -  Invalid argument.
+
+
+-----
+
+
+close()
+-------
+
+Synopsis
+~~~~~~~~
+
+.. c:function:: int close(int fd)
+
+Arguments
+~~~~~~~~~
+
+.. flat-table::
+    :header-rows:  0
+    :stub-columns: 0
+
+    -  ..
+
+       -  ``int fd``
+
+       -  :cspan:`1` File descriptor returned by a previous call
+          to `open()`_ .
+
+Description
+~~~~~~~~~~~
+
+This system call closes a previously opened OSD device.
+
+Return Value
+~~~~~~~~~~~~
+
+.. flat-table::
+    :header-rows:  0
+    :stub-columns: 0
+
+    -  ..
+
+       -  ``EBADF``
+
+       -  fd is not a valid open file descriptor.
diff --git a/Documentation/userspace-api/media/dvb/legacy_dvb_video.rst b/Documentation/userspace-api/media/dvb/legacy_dvb_video.rst
new file mode 100644
index 0000000000..b9fd5cadae
--- /dev/null
+++ b/Documentation/userspace-api/media/dvb/legacy_dvb_video.rst
@@ -0,0 +1,2430 @@
+.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later OR GPL-2.0
+
+.. c:namespace:: dtv.legacy.video
+
+.. _dvb_video:
+
+================
+DVB Video Device
+================
+
+.. attention:: Do **not** use in new drivers!
+             See: :ref:`legacy_dvb_decoder_notes`
+
+The DVB video device controls the MPEG2 video decoder of the DVB
+hardware. It can be accessed through ``/dev/dvb/adapter0/video0``. Data
+types and ioctl definitions can be accessed by including
+``linux/dvb/video.h`` in your application.
+
+Note that the DVB video device only controls decoding of the MPEG video
+stream, not its presentation on the TV or computer screen. On PCs this
+is typically handled by an associated video4linux device, e.g.
+``/dev/video``, which allows scaling and defining output windows.
+
+Most DVB cards don’t have their own MPEG decoder, which results in the
+omission of the audio and video device as well as the video4linux
+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. Use :ref:`V4L2 ioctls<video>` for new drivers!
+
+
+Video Data Types
+================
+
+
+
+video_format_t
+--------------
+
+Synopsis
+~~~~~~~~
+
+.. code-block:: c
+
+    typedef enum {
+	VIDEO_FORMAT_4_3,
+	VIDEO_FORMAT_16_9,
+	VIDEO_FORMAT_221_1
+    } video_format_t;
+
+Constants
+~~~~~~~~~
+
+.. flat-table::
+    :header-rows:  0
+    :stub-columns: 0
+
+    -  ..
+
+       -  ``VIDEO_FORMAT_4_3``
+
+       -  Select 4:3 format.
+
+    -  ..
+
+       -  ``VIDEO_FORMAT_16_9``
+
+       -  Select 16:9 format.
+
+    -  ..
+
+       -  ``VIDEO_FORMAT_221_1``
+
+       -  Select 2.21:1 format.
+
+Description
+~~~~~~~~~~~
+
+The ``video_format_t`` data type
+is used in the `VIDEO_SET_FORMAT`_ function to tell the driver which
+aspect ratio the output hardware (e.g. TV) has. It is also used in the
+data structures `video_status`_ returned by `VIDEO_GET_STATUS`_
+and `video_event`_ returned by `VIDEO_GET_EVENT`_ which report
+about the display format of the current video stream.
+
+
+-----
+
+
+video_displayformat_t
+---------------------
+
+Synopsis
+~~~~~~~~
+
+.. code-block:: c
+
+    typedef enum {
+	VIDEO_PAN_SCAN,
+	VIDEO_LETTER_BOX,
+	VIDEO_CENTER_CUT_OUT
+    } video_displayformat_t;
+
+Constants
+~~~~~~~~~
+
+.. flat-table::
+    :header-rows:  0
+    :stub-columns: 0
+
+    -  ..
+
+       -  ``VIDEO_PAN_SCAN``
+
+       -  Use pan and scan format.
+
+    -  ..
+
+       -  ``VIDEO_LETTER_BOX``
+
+       -  Use letterbox format.
+
+    -  ..
+
+       -  ``VIDEO_CENTER_CUT_OUT``
+
+       -  Use center cut out format.
+
+Description
+~~~~~~~~~~~
+
+In case the display format of the video stream and of the display
+hardware differ the application has to specify how to handle the
+cropping of the picture. This can be done using the
+`VIDEO_SET_DISPLAY_FORMAT`_ call which accepts this enum as argument.
+
+
+-----
+
+
+video_size_t
+------------
+
+Synopsis
+~~~~~~~~
+
+.. code-block:: c
+
+    typedef struct {
+	int w;
+	int h;
+	video_format_t aspect_ratio;
+    } video_size_t;
+
+Variables
+~~~~~~~~~
+
+.. flat-table::
+    :header-rows:  0
+    :stub-columns: 0
+
+    -  ..
+
+       -  ``int w``
+
+       -  Video width in pixels.
+
+    -  ..
+
+       -  ``int h``
+
+       -  Video height in pixels.
+
+    -  ..
+
+       -  `video_format_t`_ ``aspect_ratio``
+
+       -  Aspect ratio.
+
+Description
+~~~~~~~~~~~
+
+Used in the struct `video_event`_. It stores the resolution and
+aspect ratio of the video.
+
+
+-----
+
+
+video_stream_source_t
+---------------------
+
+Synopsis
+~~~~~~~~
+
+.. code-block:: c
+
+    typedef enum {
+	VIDEO_SOURCE_DEMUX,
+	VIDEO_SOURCE_MEMORY
+    } video_stream_source_t;
+
+Constants
+~~~~~~~~~
+
+.. flat-table::
+    :header-rows:  0
+    :stub-columns: 0
+
+    -  ..
+
+       -  ``VIDEO_SOURCE_DEMUX``
+
+       -  :cspan:`1` Select the demux as the main source.
+
+    -  ..
+
+       -  ``VIDEO_SOURCE_MEMORY``
+
+       -  If this source is selected, the stream
+          comes from the user through the write
+          system call.
+
+Description
+~~~~~~~~~~~
+
+The video stream source is set through the `VIDEO_SELECT_SOURCE`_ call
+and can take the following values, depending on whether we are replaying
+from an internal (demuxer) or external (user write) source.
+VIDEO_SOURCE_DEMUX selects the demultiplexer (fed either by the
+frontend or the DVR device) as the source of the video stream. If
+VIDEO_SOURCE_MEMORY is selected the stream comes from the application
+through the `write()`_ system call.
+
+
+-----
+
+
+video_play_state_t
+------------------
+
+Synopsis
+~~~~~~~~
+
+.. code-block:: c
+
+    typedef enum {
+	VIDEO_STOPPED,
+	VIDEO_PLAYING,
+	VIDEO_FREEZED
+    } video_play_state_t;
+
+Constants
+~~~~~~~~~
+
+.. flat-table::
+    :header-rows:  0
+    :stub-columns: 0
+
+    -  ..
+
+       -  ``VIDEO_STOPPED``
+
+       -  Video is stopped.
+
+    -  ..
+
+       -  ``VIDEO_PLAYING``
+
+       -  Video is currently playing.
+
+    -  ..
+
+       -  ``VIDEO_FREEZED``
+
+       -  Video is frozen.
+
+Description
+~~~~~~~~~~~
+
+This values can be returned by the `VIDEO_GET_STATUS`_ call
+representing the state of video playback.
+
+
+-----
+
+
+struct video_command
+--------------------
+
+Synopsis
+~~~~~~~~
+
+.. code-block:: c
+
+    struct video_command {
+	__u32 cmd;
+	__u32 flags;
+	union {
+	    struct {
+		__u64 pts;
+	    } stop;
+
+	    struct {
+		__s32 speed;
+		__u32 format;
+	    } play;
+
+	    struct {
+		__u32 data[16];
+	    } raw;
+	};
+    };
+
+
+Variables
+~~~~~~~~~
+
+.. flat-table::
+    :header-rows:  0
+    :stub-columns: 0
+
+    -  ..
+
+       -  ``__u32 cmd``
+
+       -  `Decoder command`_
+
+    -  ..
+
+       -  ``__u32 flags``
+
+       -  Flags for the `Decoder command`_.
+
+    -  ..
+
+       -  ``struct stop``
+
+       -  ``__u64 pts``
+
+       -  MPEG PTS
+
+    -  ..
+
+       -  :rspan:`5` ``stuct play``
+
+       -  :rspan:`4` ``__s32 speed``
+
+       -   0 or 1000 specifies normal speed,
+
+    -  ..
+
+       -   1:  specifies forward single stepping,
+
+    -  ..
+
+       -   -1: specifies backward single stepping,
+
+    -  ..
+
+       -   >1: playback at speed / 1000 of the normal speed
+
+    -  ..
+
+       -   <-1: reverse playback at ( -speed / 1000 ) of the normal speed.
+
+    -  ..
+
+       -  ``__u32 format``
+
+       -  `Play input formats`_
+
+    -  ..
+
+       -  ``__u32 data[16]``
+
+       -  Reserved
+
+Description
+~~~~~~~~~~~
+
+The structure must be zeroed before use by the application. This ensures
+it can be extended safely in the future.
+
+
+-----
+
+
+Predefined decoder commands and flags
+-------------------------------------
+
+Synopsis
+~~~~~~~~
+
+.. code-block:: c
+
+    #define VIDEO_CMD_PLAY                      (0)
+    #define VIDEO_CMD_STOP                      (1)
+    #define VIDEO_CMD_FREEZE                    (2)
+    #define VIDEO_CMD_CONTINUE                  (3)
+
+    #define VIDEO_CMD_FREEZE_TO_BLACK      (1 << 0)
+
+    #define VIDEO_CMD_STOP_TO_BLACK        (1 << 0)
+    #define VIDEO_CMD_STOP_IMMEDIATELY     (1 << 1)
+
+    #define VIDEO_PLAY_FMT_NONE                 (0)
+    #define VIDEO_PLAY_FMT_GOP                  (1)
+
+    #define VIDEO_VSYNC_FIELD_UNKNOWN           (0)
+    #define VIDEO_VSYNC_FIELD_ODD               (1)
+    #define VIDEO_VSYNC_FIELD_EVEN              (2)
+    #define VIDEO_VSYNC_FIELD_PROGRESSIVE       (3)
+
+Constants
+~~~~~~~~~
+
+.. flat-table::
+    :header-rows:  0
+    :stub-columns: 0
+
+    -  ..
+
+       -  :rspan:`3` _`Decoder command`
+
+       -  ``VIDEO_CMD_PLAY``
+
+       -  Start playback.
+
+    -  ..
+
+       -  ``VIDEO_CMD_STOP``
+
+       -  Stop playback.
+
+    -  ..
+
+       -  ``VIDEO_CMD_FREEZE``
+
+       -  Freeze playback.
+
+    -  ..
+
+       -  ``VIDEO_CMD_CONTINUE``
+
+       -  Continue playback after freeze.
+
+    -  ..
+
+       -  Flags for ``VIDEO_CMD_FREEZE``
+
+       -  ``VIDEO_CMD_FREEZE_TO_BLACK``
+
+       -  Show black picture on freeze.
+
+    -  ..
+
+       -  :rspan:`1` Flags for ``VIDEO_CMD_STOP``
+
+       -  ``VIDEO_CMD_STOP_TO_BLACK``
+
+       -  Show black picture on stop.
+
+    -  ..
+
+       -  ``VIDEO_CMD_STOP_IMMEDIATELY``
+
+       -  Stop immediately, without emptying buffers.
+
+    -  ..
+
+       -  :rspan:`1` _`Play input formats`
+
+       -  ``VIDEO_PLAY_FMT_NONE``
+
+       -  The decoder has no special format requirements
+
+    -  ..
+
+       -  ``VIDEO_PLAY_FMT_GOP``
+
+       -  The decoder requires full GOPs
+
+    -  ..
+
+       -  :rspan:`3` Field order
+
+       -  ``VIDEO_VSYNC_FIELD_UNKNOWN``
+
+       -  FIELD_UNKNOWN can be used if the hardware does not know
+          whether the Vsync is for an odd, even or progressive
+          (i.e. non-interlaced) field.
+
+    -  ..
+
+       -  ``VIDEO_VSYNC_FIELD_ODD``
+
+       -  Vsync is for an odd field.
+
+    -  ..
+
+       -  ``VIDEO_VSYNC_FIELD_EVEN``
+
+       -  Vsync is for an even field.
+
+    -  ..
+
+       -  ``VIDEO_VSYNC_FIELD_PROGRESSIVE``
+
+       -  progressive (i.e. non-interlaced)
+
+
+-----
+
+
+video_event
+-----------
+
+Synopsis
+~~~~~~~~
+
+.. code-block:: c
+
+    struct video_event {
+	__s32 type;
+    #define VIDEO_EVENT_SIZE_CHANGED        1
+    #define VIDEO_EVENT_FRAME_RATE_CHANGED  2
+    #define VIDEO_EVENT_DECODER_STOPPED     3
+    #define VIDEO_EVENT_VSYNC               4
+	long timestamp;
+	union {
+	    video_size_t size;
+	    unsigned int frame_rate;
+	    unsigned char vsync_field;
+	} u;
+    };
+
+Variables
+~~~~~~~~~
+
+.. flat-table::
+    :header-rows:  0
+    :stub-columns: 0
+
+    -  ..
+
+       -  :rspan:`4` ``__s32 type``
+
+       -  :cspan:`1` Event type.
+
+    -  ..
+
+       -  ``VIDEO_EVENT_SIZE_CHANGED``
+
+       -  Size changed.
+
+    -  ..
+
+       -  ``VIDEO_EVENT_FRAME_RATE_CHANGED``
+
+       -  Framerate changed.
+
+    -  ..
+
+       -  ``VIDEO_EVENT_DECODER_STOPPED``
+
+       -  Decoder stopped.
+
+    -  ..
+
+       -  ``VIDEO_EVENT_VSYNC``
+
+       -  Vsync occurred.
+
+    -  ..
+
+       -  ``long timestamp``
+
+       -  :cspan:`1` MPEG PTS at occurrence.
+
+    -  ..
+
+       -  :rspan:`2` ``union u``
+
+       -  `video_size_t`_ size
+
+       -  Resolution and aspect ratio of the video.
+
+    -  ..
+
+       -  ``unsigned int frame_rate``
+
+       -  in frames per 1000sec
+
+    -  ..
+
+       -  ``unsigned char vsync_field``
+
+       -  | unknown / odd / even / progressive
+          | See: `Predefined decoder commands and flags`_
+
+Description
+~~~~~~~~~~~
+
+This is the structure of a video event as it is returned by the
+`VIDEO_GET_EVENT`_ call. See there for more details.
+
+
+-----
+
+
+video_status
+------------
+
+Synopsis
+~~~~~~~~
+
+The `VIDEO_GET_STATUS`_ call returns the following structure informing
+about various states of the playback operation.
+
+.. code-block:: c
+
+    struct video_status {
+	int                    video_blank;
+	video_play_state_t     play_state;
+	video_stream_source_t  stream_source;
+	video_format_t         video_format;
+	video_displayformat_t  display_format;
+    };
+
+Variables
+~~~~~~~~~
+
+.. flat-table::
+    :header-rows:  0
+    :stub-columns: 0
+
+    -  ..
+
+       -  :rspan:`2` ``int video_blank``
+
+       -  :cspan:`1` Show blank video on freeze?
+
+    -  ..
+
+       -  TRUE  ( != 0 )
+
+       -  Blank screen when freeze.
+
+    -  ..
+
+       -  FALSE ( == 0 )
+
+       -  Show last decoded frame.
+
+    -  ..
+
+       -  `video_play_state_t`_ ``play_state``
+
+       -  Current state of playback.
+
+    -  ..
+
+       -  `video_stream_source_t`_ ``stream_source``
+
+       -  Current source (demux/memory).
+
+    -  ..
+
+       -  `video_format_t`_ ``video_format``
+
+       -  Current aspect ratio of stream.
+
+    -  ..
+
+       -  `video_displayformat_t`_ ``display_format``
+
+       -  Applied cropping mode.
+
+Description
+~~~~~~~~~~~
+
+If ``video_blank`` is set ``TRUE`` video will be blanked out if the
+channel is changed or if playback is stopped. Otherwise, the last picture
+will be displayed. ``play_state`` indicates if the video is currently
+frozen, stopped, or being played back. The ``stream_source`` corresponds
+to the selected source for the video stream. It can come either from the
+demultiplexer or from memory. The ``video_format`` indicates the aspect
+ratio (one of 4:3 or 16:9) of the currently played video stream.
+Finally, ``display_format`` corresponds to the applied cropping mode in
+case the source video format is not the same as the format of the output
+device.
+
+
+-----
+
+
+video_still_picture
+-------------------
+
+Synopsis
+~~~~~~~~
+
+.. code-block:: c
+
+    struct video_still_picture {
+    char *iFrame;
+    int32_t size;
+    };
+
+Variables
+~~~~~~~~~
+
+.. flat-table::
+    :header-rows:  0
+    :stub-columns: 0
+
+    -  ..
+
+       -  ``char *iFrame``
+
+       -  Pointer to a single iframe in memory.
+
+    -  ..
+
+       -  ``int32_t size``
+
+       -  Size of the iframe.
+
+
+Description
+~~~~~~~~~~~
+
+An I-frame displayed via the `VIDEO_STILLPICTURE`_ call is passed on
+within this structure.
+
+
+-----
+
+
+video capabilities
+------------------
+
+Synopsis
+~~~~~~~~
+
+.. code-block:: c
+
+    #define VIDEO_CAP_MPEG1   1
+    #define VIDEO_CAP_MPEG2   2
+    #define VIDEO_CAP_SYS     4
+    #define VIDEO_CAP_PROG    8
+
+Constants
+~~~~~~~~~
+Bit definitions for capabilities:
+
+.. flat-table::
+    :header-rows:  0
+    :stub-columns: 0
+
+    -  ..
+
+       -  ``VIDEO_CAP_MPEG1``
+
+       -  :cspan:`1` The hardware can decode MPEG1.
+
+    -  ..
+
+       -  ``VIDEO_CAP_MPEG2``
+
+       -  The hardware can decode MPEG2.
+
+    -  ..
+
+       -  ``VIDEO_CAP_SYS``
+
+       -  The video device accepts system stream.
+
+          You still have to open the video and the audio device
+          but only send the stream to the video device.
+
+    -  ..
+
+       -  ``VIDEO_CAP_PROG``
+
+       -  The video device accepts program stream.
+
+          You still have to open the video and the audio device
+          but only send the stream to the video device.
+
+Description
+~~~~~~~~~~~
+
+A call to `VIDEO_GET_CAPABILITIES`_ returns an unsigned integer with the
+following bits set according to the hardware's capabilities.
+
+
+-----
+
+
+Video Function Calls
+====================
+
+
+VIDEO_STOP
+----------
+
+Synopsis
+~~~~~~~~
+
+.. c:macro:: VIDEO_STOP
+
+.. code-block:: c
+
+	int ioctl(fd, VIDEO_STOP, int mode)
+
+Arguments
+~~~~~~~~~
+
+.. flat-table::
+    :header-rows:  0
+    :stub-columns: 0
+
+    -  ..
+
+       -  ``int fd``
+
+       -  :cspan:`1` File descriptor returned by a previous call
+          to `open()`_.
+
+    -  ..
+
+       -  ``int request``
+
+       -  :cspan:`1` Equals ``VIDEO_STOP`` for this command.
+
+    -  ..
+
+       -  :rspan:`2` ``int mode``
+
+       -  :cspan:`1` Indicates how the screen shall be handled.
+
+    -  ..
+
+       -  TRUE  ( != 0 )
+
+       -  Blank screen when stop.
+
+    -  ..
+
+       -  FALSE ( == 0 )
+
+       -  Show last decoded frame.
+
+Description
+~~~~~~~~~~~
+
+.. attention:: Do **not** use in new drivers!
+             See: :ref:`legacy_dvb_decoder_notes`
+
+This ioctl is for Digital TV devices only. To control a V4L2 decoder use
+the V4L2 :ref:`VIDIOC_DECODER_CMD` instead.
+
+This ioctl call asks the Video Device to stop playing the current
+stream. Depending on the input parameter, the screen can be blanked out
+or displaying the last decoded frame.
+
+Return Value
+~~~~~~~~~~~~
+
+On success 0 is returned, on error -1 and the ``errno`` variable is set
+appropriately. The generic error codes are described at the
+:ref:`Generic Error Codes <gen-errors>` chapter.
+
+
+-----
+
+
+VIDEO_PLAY
+----------
+
+Synopsis
+~~~~~~~~
+
+.. c:macro:: VIDEO_PLAY
+
+.. code-block:: c
+
+	int ioctl(fd, VIDEO_PLAY)
+
+Arguments
+~~~~~~~~~
+
+.. flat-table::
+    :header-rows:  0
+    :stub-columns: 0
+
+    -  ..
+
+       -  ``int fd``
+
+       -  :cspan:`1` File descriptor returned by a previous call
+          to `open()`_.
+
+    -  ..
+
+       -  ``int request``
+
+       -  Equals ``VIDEO_PLAY`` for this command.
+
+Description
+~~~~~~~~~~~
+
+.. attention:: Do **not** use in new drivers!
+             See: :ref:`legacy_dvb_decoder_notes`
+
+This ioctl is for Digital TV devices only. To control a V4L2 decoder use
+the V4L2 :ref:`VIDIOC_DECODER_CMD` instead.
+
+This ioctl call asks the Video Device to start playing a video stream
+from the selected source.
+
+Return Value
+~~~~~~~~~~~~
+
+On success 0 is returned, on error -1 and the ``errno`` variable is set
+appropriately. The generic error codes are described at the
+:ref:`Generic Error Codes <gen-errors>` chapter.
+
+
+-----
+
+
+VIDEO_FREEZE
+------------
+
+Synopsis
+~~~~~~~~
+
+.. c:macro:: VIDEO_FREEZE
+
+.. code-block:: c
+
+	int ioctl(fd, VIDEO_FREEZE)
+
+Arguments
+~~~~~~~~~
+
+.. flat-table::
+    :header-rows:  0
+    :stub-columns: 0
+
+    -  ..
+
+       -  ``int fd``
+
+       -  :cspan:`1` File descriptor returned by a previous call
+          to `open()`_.
+
+    -  ..
+
+       -  ``int request``
+
+       -  Equals ``VIDEO_FREEZE`` for this command.
+
+Description
+~~~~~~~~~~~
+
+.. attention:: Do **not** use in new drivers!
+             See: :ref:`legacy_dvb_decoder_notes`
+
+This ioctl is for Digital TV devices only. To control a V4L2 decoder use
+the V4L2 :ref:`VIDIOC_DECODER_CMD` instead.
+
+This ioctl call suspends the live video stream being played, if
+VIDEO_SOURCE_DEMUX is selected. Decoding and playing are frozen.
+It is then possible to restart the decoding and playing process of the
+video stream using the `VIDEO_CONTINUE`_ command.
+If VIDEO_SOURCE_MEMORY is selected in the ioctl call
+`VIDEO_SELECT_SOURCE`_, the Digital TV subsystem will not decode any more
+data until the ioctl call `VIDEO_CONTINUE`_ or `VIDEO_PLAY`_ is performed.
+
+Return Value
+~~~~~~~~~~~~
+
+On success 0 is returned, on error -1 and the ``errno`` variable is set
+appropriately. The generic error codes are described at the
+:ref:`Generic Error Codes <gen-errors>` chapter.
+
+
+-----
+
+
+VIDEO_CONTINUE
+--------------
+
+Synopsis
+~~~~~~~~
+
+.. c:macro:: VIDEO_CONTINUE
+
+.. code-block:: c
+
+	int ioctl(fd, VIDEO_CONTINUE)
+
+Arguments
+~~~~~~~~~
+
+.. flat-table::
+    :header-rows:  0
+    :stub-columns: 0
+
+    -  ..
+
+       -  ``int fd``
+
+       -  :cspan:`1` File descriptor returned by a previous call
+          to `open()`_.
+
+    -  ..
+
+       -  ``int request``
+
+       -  Equals ``VIDEO_CONTINUE`` for this command.
+
+Description
+~~~~~~~~~~~
+
+.. attention:: Do **not** use in new drivers!
+             See: :ref:`legacy_dvb_decoder_notes`
+
+This ioctl is for Digital TV devices only. To control a V4L2 decoder use
+the V4L2 :ref:`VIDIOC_DECODER_CMD` instead.
+
+This ioctl call restarts decoding and playing processes of the video
+stream which was played before a call to `VIDEO_FREEZE`_ was made.
+
+Return Value
+~~~~~~~~~~~~
+
+On success 0 is returned, on error -1 and the ``errno`` variable is set
+appropriately. The generic error codes are described at the
+:ref:`Generic Error Codes <gen-errors>` chapter.
+
+
+-----
+
+
+VIDEO_SELECT_SOURCE
+-------------------
+
+Synopsis
+~~~~~~~~
+
+.. c:macro:: VIDEO_SELECT_SOURCE
+
+.. code-block:: c
+
+	int ioctl(fd, VIDEO_SELECT_SOURCE, video_stream_source_t source)
+
+Arguments
+~~~~~~~~~
+
+.. flat-table::
+    :header-rows:  0
+    :stub-columns: 0
+
+    -  ..
+
+       -  ``int fd``
+
+       -  :cspan:`1` File descriptor returned by a previous call
+          to `open()`_.
+
+    -  ..
+
+       -  ``int request``
+
+       -  Equals ``VIDEO_SELECT_SOURCE`` for this command.
+
+    -  ..
+
+       -  `video_stream_source_t`_ ``source``
+
+       -  Indicates which source shall be used for the Video stream.
+
+Description
+~~~~~~~~~~~
+
+.. attention:: Do **not** use in new drivers!
+             See: :ref:`legacy_dvb_decoder_notes`
+
+This ioctl is for Digital TV devices only. This ioctl was also supported
+by the V4L2 ivtv driver, but that has been replaced by the ivtv-specific
+``IVTV_IOC_PASSTHROUGH_MODE`` ioctl.
+
+This ioctl call informs the video device which source shall be used for
+the input data. The possible sources are demux or memory. If memory is
+selected, the data is fed to the video device through the write command
+using the struct `video_stream_source_t`_. If demux is selected, the data
+is directly transferred from the onboard demux-device to the decoder.
+
+The data fed to the decoder is also controlled by the PID-filter.
+Output selection: :c:type:`dmx_output` ``DMX_OUT_DECODER``.
+
+
+Return Value
+~~~~~~~~~~~~
+
+On success 0 is returned, on error -1 and the ``errno`` variable is set
+appropriately. The generic error codes are described at the
+:ref:`Generic Error Codes <gen-errors>` chapter.
+
+
+-----
+
+
+VIDEO_SET_BLANK
+---------------
+
+Synopsis
+~~~~~~~~
+
+.. c:macro:: VIDEO_SET_BLANK
+
+.. code-block:: c
+
+	int ioctl(fd, VIDEO_SET_BLANK, int mode)
+
+Arguments
+~~~~~~~~~
+
+.. flat-table::
+    :header-rows:  0
+    :stub-columns: 0
+
+    -  ..
+
+       -  ``int fd``
+
+       -  :cspan:`1` File descriptor returned by a previous call
+          to `open()`_.
+
+    -  ..
+
+       -  ``int request``
+
+       -  :cspan:`1` Equals ``VIDEO_SET_BLANK`` for this command.
+
+    -  ..
+
+       -  :rspan:`2` ``int mode``
+
+       -  :cspan:`1` Indicates if the screen shall be blanked.
+
+    -  ..
+
+       -  TRUE  ( != 0 )
+
+       -  Blank screen when stop.
+
+    -  ..
+
+       -  FALSE ( == 0 )
+
+       -  Show last decoded frame.
+
+Description
+~~~~~~~~~~~
+
+.. attention:: Do **not** use in new drivers!
+             See: :ref:`legacy_dvb_decoder_notes`
+
+This ioctl call asks the Video Device to blank out the picture.
+
+Return Value
+~~~~~~~~~~~~
+
+On success 0 is returned, on error -1 and the ``errno`` variable is set
+appropriately. The generic error codes are described at the
+:ref:`Generic Error Codes <gen-errors>` chapter.
+
+
+-----
+
+
+VIDEO_GET_STATUS
+----------------
+
+Synopsis
+~~~~~~~~
+
+.. c:macro:: VIDEO_GET_STATUS
+
+.. code-block:: c
+
+	int ioctl(fd, int request = VIDEO_GET_STATUS,
+	struct video_status *status)
+
+Arguments
+~~~~~~~~~
+
+.. flat-table::
+    :header-rows:  0
+    :stub-columns: 0
+
+    -  ..
+
+       -  ``int fd``
+
+       -  :cspan:`1` File descriptor returned by a previous call
+          to `open()`_.
+
+    -  ..
+
+       -  ``int request``
+
+       -  Equals ``VIDEO_GET_STATUS`` for this command.
+
+    -  ..
+
+       -  ``struct`` `video_status`_ ``*status``
+
+       -  Returns the current status of the Video Device.
+
+Description
+~~~~~~~~~~~
+
+.. attention:: Do **not** use in new drivers!
+             See: :ref:`legacy_dvb_decoder_notes`
+
+This ioctl call asks the Video Device to return the current status of
+the device.
+
+Return Value
+~~~~~~~~~~~~
+
+On success 0 is returned, on error -1 and the ``errno`` variable is set
+appropriately. The generic error codes are described at the
+:ref:`Generic Error Codes <gen-errors>` chapter.
+
+
+-----
+
+
+VIDEO_GET_EVENT
+---------------
+
+Synopsis
+~~~~~~~~
+
+.. c:macro:: VIDEO_GET_EVENT
+
+.. code-block:: c
+
+	int ioctl(fd, int request = VIDEO_GET_EVENT,
+	struct video_event *ev)
+
+Arguments
+~~~~~~~~~
+
+.. flat-table::
+    :header-rows:  0
+    :stub-columns: 0
+
+    -  ..
+
+       -  ``int fd``
+
+       -  :cspan:`1` File descriptor returned by a previous call
+          to `open()`_.
+
+    -  ..
+
+       -  ``int request``
+
+       -  Equals ``VIDEO_GET_EVENT`` for this command.
+
+    -  ..
+
+       -  ``struct`` `video_event`_ ``*ev``
+
+       -  Points to the location where the event, if any, is to be stored.
+
+Description
+~~~~~~~~~~~
+
+.. attention:: Do **not** use in new drivers!
+             See: :ref:`legacy_dvb_decoder_notes`
+
+This ioctl is for DVB devices only. To get events from a V4L2 decoder
+use the V4L2 :ref:`VIDIOC_DQEVENT` ioctl instead.
+
+This ioctl call returns an event of type `video_event`_ if available. A
+certain number of the latest events will be cued and returned in order of
+occurrence. Older events may be discarded if not fetched in time. If
+an event is not available, the behavior depends on whether the device is
+in blocking or non-blocking mode. In the latter case, the call fails
+immediately with errno set to ``EWOULDBLOCK``. In the former case, the
+call blocks until an event becomes available. The standard Linux poll()
+and/or select() system calls can be used with the device file descriptor
+to watch for new events. For select(), the file descriptor should be
+included in the exceptfds argument, and for poll(), POLLPRI should be
+specified as the wake-up condition. Read-only permissions are sufficient
+for this ioctl call.
+
+Return Value
+~~~~~~~~~~~~
+
+On success 0 is returned, on error -1 and the ``errno`` variable is set
+appropriately. The generic error codes are described at the
+:ref:`Generic Error Codes <gen-errors>` chapter.
+
+.. flat-table::
+    :header-rows:  0
+    :stub-columns: 0
+
+    -  ..
+
+       -  ``EWOULDBLOCK``
+
+       -  :cspan:`1` There is no event pending, and the device is in
+          non-blocking mode.
+
+    -  ..
+
+       -  ``EOVERFLOW``
+
+       -  Overflow in event queue - one or more events were lost.
+
+
+-----
+
+
+VIDEO_SET_DISPLAY_FORMAT
+------------------------
+
+Synopsis
+~~~~~~~~
+
+.. c:macro:: VIDEO_SET_DISPLAY_FORMAT
+
+.. code-block:: c
+
+	int ioctl(fd, int request = VIDEO_SET_DISPLAY_FORMAT,
+	video_display_format_t format)
+
+Arguments
+~~~~~~~~~
+
+.. flat-table::
+    :header-rows:  0
+    :stub-columns: 0
+
+    -  ..
+
+       -  ``int fd``
+
+       -  :cspan:`1` File descriptor returned by a previous call
+          to `open()`_.
+
+    -  ..
+
+       -  ``int request``
+
+       -  Equals ``VIDEO_SET_DISPLAY_FORMAT`` for this command.
+
+    -  ..
+
+       -  `video_displayformat_t`_ ``format``
+
+       -  Selects the video format to be used.
+
+Description
+~~~~~~~~~~~
+
+.. attention:: Do **not** use in new drivers!
+             See: :ref:`legacy_dvb_decoder_notes`
+
+This ioctl call asks the Video Device to select the video format to be
+applied by the MPEG chip on the video.
+
+Return Value
+~~~~~~~~~~~~
+
+On success 0 is returned, on error -1 and the ``errno`` variable is set
+appropriately. The generic error codes are described at the
+:ref:`Generic Error Codes <gen-errors>` chapter.
+
+
+-----
+
+
+VIDEO_STILLPICTURE
+------------------
+
+Synopsis
+~~~~~~~~
+
+.. c:macro:: VIDEO_STILLPICTURE
+
+.. code-block:: c
+
+	int ioctl(fd, int request = VIDEO_STILLPICTURE,
+	struct video_still_picture *sp)
+
+Arguments
+~~~~~~~~~
+
+.. flat-table::
+    :header-rows:  0
+    :stub-columns: 0
+
+    -  ..
+
+       -  ``int fd``
+
+       -  :cspan:`1` File descriptor returned by a previous call
+          to `open()`_.
+
+    -  ..
+
+       -  ``int request``
+
+       -  Equals ``VIDEO_STILLPICTURE`` for this command.
+
+    -  ..
+
+       -  ``struct`` `video_still_picture`_ ``*sp``
+
+       -  Pointer to the location where the struct with the I-frame
+          and size is stored.
+
+Description
+~~~~~~~~~~~
+
+.. attention:: Do **not** use in new drivers!
+             See: :ref:`legacy_dvb_decoder_notes`
+
+This ioctl call asks the Video Device to display a still picture
+(I-frame). The input data shall be the section of an elementary video
+stream containing an I-frame. Typically this section is extracted from a
+TS or PES recording. Resolution and codec (see `video capabilities`_) must
+be supported by the device. If the pointer is NULL, then the current
+displayed still picture is blanked.
+
+e.g. The AV7110 supports MPEG1 and MPEG2 with the common PAL-SD
+resolutions.
+
+Return Value
+~~~~~~~~~~~~
+
+On success 0 is returned, on error -1 and the ``errno`` variable is set
+appropriately. The generic error codes are described at the
+:ref:`Generic Error Codes <gen-errors>` chapter.
+
+
+-----
+
+
+VIDEO_FAST_FORWARD
+------------------
+
+Synopsis
+~~~~~~~~
+
+.. c:macro:: VIDEO_FAST_FORWARD
+
+.. code-block:: c
+
+	int ioctl(fd, int request = VIDEO_FAST_FORWARD, int nFrames)
+
+Arguments
+~~~~~~~~~
+
+.. flat-table::
+    :header-rows:  0
+    :stub-columns: 0
+
+    -  ..
+
+       -  ``int fd``
+
+       -  :cspan:`1` File descriptor returned by a previous call
+          to `open()`_.
+
+    -  ..
+
+       -  ``int request``
+
+       -  Equals ``VIDEO_FAST_FORWARD`` for this command.
+
+    -  ..
+
+       -  ``int nFrames``
+
+       -  The number of frames to skip.
+
+Description
+~~~~~~~~~~~
+
+.. attention:: Do **not** use in new drivers!
+             See: :ref:`legacy_dvb_decoder_notes`
+
+This ioctl call asks the Video Device to skip decoding of N number of
+I-frames. This call can only be used if ``VIDEO_SOURCE_MEMORY`` is
+selected.
+
+Return Value
+~~~~~~~~~~~~
+
+On success 0 is returned, on error -1 and the ``errno`` variable is set
+appropriately. The generic error codes are described at the
+:ref:`Generic Error Codes <gen-errors>` chapter.
+
+.. flat-table::
+    :header-rows:  0
+    :stub-columns: 0
+
+    -  ..
+
+       -  ``EPERM``
+
+       -  Mode ``VIDEO_SOURCE_MEMORY`` not selected.
+
+
+-----
+
+
+VIDEO_SLOWMOTION
+----------------
+
+Synopsis
+~~~~~~~~
+
+.. c:macro:: VIDEO_SLOWMOTION
+
+.. code-block:: c
+
+	int ioctl(fd, int request = VIDEO_SLOWMOTION, int nFrames)
+
+Arguments
+~~~~~~~~~
+
+.. flat-table::
+    :header-rows:  0
+    :stub-columns: 0
+
+    -  ..
+
+       -  ``int fd``
+
+       -  :cspan:`1` File descriptor returned by a previous call
+          to `open()`_.
+
+    -  ..
+
+       -  ``int request``
+
+       -  Equals ``VIDEO_SLOWMOTION`` for this command.
+
+    -  ..
+
+       -  ``int nFrames``
+
+       -  The number of times to repeat each frame.
+
+Description
+~~~~~~~~~~~
+
+.. attention:: Do **not** use in new drivers!
+             See: :ref:`legacy_dvb_decoder_notes`
+
+This ioctl call asks the video device to repeat decoding frames N number
+of times. This call can only be used if ``VIDEO_SOURCE_MEMORY`` is
+selected.
+
+Return Value
+~~~~~~~~~~~~
+
+On success 0 is returned, on error -1 and the ``errno`` variable is set
+appropriately. The generic error codes are described at the
+:ref:`Generic Error Codes <gen-errors>` chapter.
+
+.. flat-table::
+    :header-rows:  0
+    :stub-columns: 0
+
+    -  ..
+
+       -  ``EPERM``
+
+       -  Mode ``VIDEO_SOURCE_MEMORY`` not selected.
+
+
+-----
+
+
+VIDEO_GET_CAPABILITIES
+----------------------
+
+Synopsis
+~~~~~~~~
+
+.. c:macro:: VIDEO_GET_CAPABILITIES
+
+.. code-block:: c
+
+	int ioctl(fd, int request = VIDEO_GET_CAPABILITIES, unsigned int *cap)
+
+Arguments
+~~~~~~~~~
+
+.. flat-table::
+    :header-rows:  0
+    :stub-columns: 0
+
+    -  ..
+
+       -  ``int fd``
+
+       -  :cspan:`1` File descriptor returned by a previous call
+          to `open()`_.
+
+    -  ..
+
+       -  ``int request``
+
+       -  Equals ``VIDEO_GET_CAPABILITIES`` for this command.
+
+    -  ..
+
+       -  ``unsigned int *cap``
+
+       -  Pointer to a location where to store the capability information.
+
+Description
+~~~~~~~~~~~
+
+.. attention:: Do **not** use in new drivers!
+             See: :ref:`legacy_dvb_decoder_notes`
+
+This ioctl call asks the video device about its decoding capabilities.
+On success it returns an integer which has bits set according to the
+defines in `video capabilities`_.
+
+Return Value
+~~~~~~~~~~~~
+
+On success 0 is returned, on error -1 and the ``errno`` variable is set
+appropriately. The generic error codes are described at the
+:ref:`Generic Error Codes <gen-errors>` chapter.
+
+
+-----
+
+
+VIDEO_CLEAR_BUFFER
+------------------
+
+Synopsis
+~~~~~~~~
+
+.. c:macro:: VIDEO_CLEAR_BUFFER
+
+.. code-block:: c
+
+	int ioctl(fd, int request = VIDEO_CLEAR_BUFFER)
+
+Arguments
+~~~~~~~~~
+
+.. flat-table::
+    :header-rows:  0
+    :stub-columns: 0
+
+    -  ..
+
+       -  ``int fd``
+
+       -  :cspan:`1` File descriptor returned by a previous call
+          to `open()`_.
+
+    -  ..
+
+       -  ``int request``
+
+       -  Equals ``VIDEO_CLEAR_BUFFER`` for this command.
+
+Description
+~~~~~~~~~~~
+
+.. attention:: Do **not** use in new drivers!
+             See: :ref:`legacy_dvb_decoder_notes`
+
+This ioctl call clears all video buffers in the driver and in the
+decoder hardware.
+
+Return Value
+~~~~~~~~~~~~
+
+On success 0 is returned, on error -1 and the ``errno`` variable is set
+appropriately. The generic error codes are described at the
+:ref:`Generic Error Codes <gen-errors>` chapter.
+
+
+-----
+
+
+VIDEO_SET_STREAMTYPE
+--------------------
+
+Synopsis
+~~~~~~~~
+
+.. c:macro:: VIDEO_SET_STREAMTYPE
+
+.. code-block:: c
+
+	int ioctl(fd, int request = VIDEO_SET_STREAMTYPE, int type)
+
+Arguments
+~~~~~~~~~
+
+.. flat-table::
+    :header-rows:  0
+    :stub-columns: 0
+
+    -  ..
+
+       -  ``int fd``
+
+       -  :cspan:`1` File descriptor returned by a previous call
+          to `open()`_.
+
+    -  ..
+
+       -  ``int request``
+
+       -  Equals ``VIDEO_SET_STREAMTYPE`` for this command.
+
+    -  ..
+
+       -  ``int type``
+
+       -  Stream type.
+
+Description
+~~~~~~~~~~~
+
+.. attention:: Do **not** use in new drivers!
+             See: :ref:`legacy_dvb_decoder_notes`
+
+This ioctl tells the driver which kind of stream to expect being written
+to it.
+Intelligent decoder might also not support or ignore (like the AV7110)
+this call and determine the stream type themselves.
+
+Currently used stream types:
+
+.. flat-table::
+    :header-rows:  1
+    :stub-columns: 0
+
+    -  ..
+
+       -  Codec
+
+       -  Stream type
+
+    -  ..
+
+       -  MPEG2
+
+       -  0
+
+    -  ..
+
+       -  MPEG4 h.264
+
+       -  1
+
+    -  ..
+
+       -  VC1
+
+       -  3
+
+    -  ..
+
+       -  MPEG4 Part2
+
+       -  4
+
+    -  ..
+
+       -  VC1 SM
+
+       -  5
+
+    -  ..
+
+       -  MPEG1
+
+       -  6
+
+    -  ..
+
+       -  HEVC h.265
+
+       -  | 7
+          | DREAMBOX: 22
+
+    -  ..
+
+       -  AVS
+
+       -  16
+
+    -  ..
+
+       -  AVS2
+
+       -  40
+
+Not every decoder supports all stream types.
+
+Return Value
+~~~~~~~~~~~~
+
+On success 0 is returned, on error -1 and the ``errno`` variable is set
+appropriately. The generic error codes are described at the
+:ref:`Generic Error Codes <gen-errors>` chapter.
+
+
+-----
+
+
+VIDEO_SET_FORMAT
+----------------
+
+Synopsis
+~~~~~~~~
+
+.. c:macro:: VIDEO_SET_FORMAT
+
+.. code-block:: c
+
+	int ioctl(fd, int request = VIDEO_SET_FORMAT, video_format_t format)
+
+Arguments
+~~~~~~~~~
+
+.. flat-table::
+    :header-rows:  0
+    :stub-columns: 0
+
+    -  ..
+
+       -  ``int fd``
+
+       -  :cspan:`1` File descriptor returned by a previous call
+          to `open()`_.
+
+    -  ..
+
+       -  ``int request``
+
+       -  Equals ``VIDEO_SET_FORMAT`` for this command.
+
+    -  ..
+
+       -  `video_format_t`_ ``format``
+
+       -  Video format of TV as defined in section `video_format_t`_.
+
+Description
+~~~~~~~~~~~
+
+.. attention:: Do **not** use in new drivers!
+             See: :ref:`legacy_dvb_decoder_notes`
+
+This ioctl sets the screen format (aspect ratio) of the connected output
+device (TV) so that the output of the decoder can be adjusted
+accordingly.
+
+Return Value
+~~~~~~~~~~~~
+
+On success 0 is returned, on error -1 and the ``errno`` variable is set
+appropriately. The generic error codes are described at the
+:ref:`Generic Error Codes <gen-errors>` chapter.
+
+
+-----
+
+
+VIDEO_GET_SIZE
+--------------
+
+Synopsis
+~~~~~~~~
+
+.. c:macro:: VIDEO_GET_SIZE
+
+.. code-block:: c
+
+	int ioctl(int fd, int request = VIDEO_GET_SIZE, video_size_t *size)
+
+Arguments
+~~~~~~~~~
+
+.. flat-table::
+    :header-rows:  0
+    :stub-columns: 0
+
+    -  ..
+
+       -  ``int fd``
+
+       -  :cspan:`1` File descriptor returned by a previous call,
+          to `open()`_.
+
+    -  ..
+
+       -  ``int request``
+
+       -  Equals ``VIDEO_GET_SIZE`` for this command.
+
+    -  ..
+
+       -  `video_size_t`_ ``*size``
+
+       -  Returns the size and aspect ratio.
+
+Description
+~~~~~~~~~~~
+
+.. attention:: Do **not** use in new drivers!
+             See: :ref:`legacy_dvb_decoder_notes`
+
+This ioctl returns the size and aspect ratio.
+
+Return Value
+~~~~~~~~~~~~
+
+On success 0 is returned, on error -1 and the ``errno`` variable is set
+appropriately. The generic error codes are described at the
+:ref:`Generic Error Codes <gen-errors>` chapter.
+
+
+-----
+
+
+VIDEO_GET_PTS
+-------------
+
+Synopsis
+~~~~~~~~
+
+.. c:macro:: VIDEO_GET_PTS
+
+.. code-block:: c
+
+	int ioctl(int fd, int request = VIDEO_GET_PTS, __u64 *pts)
+
+Arguments
+~~~~~~~~~
+
+.. flat-table::
+    :header-rows:  0
+    :stub-columns: 0
+
+    -  ..
+
+       -  ``int fd``
+
+       -  :cspan:`1` File descriptor returned by a previous call
+          to `open()`_.
+
+    -  ..
+
+       -  ``int request``
+
+       -  Equals ``VIDEO_GET_PTS`` for this command.
+
+    -  ..
+
+       -  ``__u64 *pts``
+
+       -  Returns the 33-bit timestamp as defined in ITU T-REC-H.222.0 /
+          ISO/IEC 13818-1.
+
+          The PTS should belong to the currently played frame if possible,
+          but may also be a value close to it like the PTS of the last
+          decoded frame or the last PTS extracted by the PES parser.
+
+Description
+~~~~~~~~~~~
+
+.. attention:: Do **not** use in new drivers!
+             See: :ref:`legacy_dvb_decoder_notes`
+
+For V4L2 decoders this ioctl has been replaced by the
+``V4L2_CID_MPEG_VIDEO_DEC_PTS`` control.
+
+This ioctl call asks the Video Device to return the current PTS
+timestamp.
+
+Return Value
+~~~~~~~~~~~~
+
+On success 0 is returned, on error -1 and the ``errno`` variable is set
+appropriately. The generic error codes are described at the
+:ref:`Generic Error Codes <gen-errors>` chapter.
+
+
+-----
+
+
+VIDEO_GET_FRAME_COUNT
+---------------------
+
+Synopsis
+~~~~~~~~
+
+.. c:macro:: VIDEO_GET_FRAME_COUNT
+
+.. code-block:: c
+
+	int ioctl(int fd, VIDEO_GET_FRAME_COUNT, __u64 *pts)
+
+Arguments
+~~~~~~~~~
+
+.. flat-table::
+    :header-rows:  0
+    :stub-columns: 0
+
+    -  ..
+
+       -  ``int fd``
+
+       -  :cspan:`1` File descriptor returned by a previous call
+          to `open()`_.
+
+    -  ..
+
+       -  ``int request``
+
+       -  Equals ``VIDEO_GET_FRAME_COUNT`` for this command.
+
+    -  ..
+
+       -  ``__u64 *pts``
+
+       -  Returns the number of frames displayed since the decoder was
+          started.
+
+Description
+~~~~~~~~~~~
+
+.. attention:: Do **not** use in new drivers!
+             See: :ref:`legacy_dvb_decoder_notes`
+
+For V4L2 decoders this ioctl has been replaced by the
+``V4L2_CID_MPEG_VIDEO_DEC_FRAME`` control.
+
+This ioctl call asks the Video Device to return the number of displayed
+frames since the decoder was started.
+
+Return Value
+~~~~~~~~~~~~
+
+On success 0 is returned, on error -1 and the ``errno`` variable is set
+appropriately. The generic error codes are described at the
+:ref:`Generic Error Codes <gen-errors>` chapter.
+
+
+-----
+
+
+VIDEO_COMMAND
+-------------
+
+Synopsis
+~~~~~~~~
+
+.. c:macro:: VIDEO_COMMAND
+
+.. code-block:: c
+
+	int ioctl(int fd, int request = VIDEO_COMMAND,
+	struct video_command *cmd)
+
+Arguments
+~~~~~~~~~
+
+.. flat-table::
+    :header-rows:  0
+    :stub-columns: 0
+
+    -  ..
+
+       -  ``int fd``
+
+       -  :cspan:`1` File descriptor returned by a previous call
+          to `open()`_.
+
+    -  ..
+
+       -  ``int request``
+
+       -  Equals ``VIDEO_COMMAND`` for this command.
+
+    -  ..
+
+       -  `struct video_command`_ ``*cmd``
+
+       -  Commands the decoder.
+
+Description
+~~~~~~~~~~~
+
+.. attention:: Do **not** use in new drivers!
+             See: :ref:`legacy_dvb_decoder_notes`
+
+For V4L2 decoders this ioctl has been replaced by the
+:ref:`VIDIOC_DECODER_CMD` ioctl.
+
+This ioctl commands the decoder. The `struct video_command`_ is a
+subset of the ``v4l2_decoder_cmd`` struct, so refer to the
+:ref:`VIDIOC_DECODER_CMD` documentation for
+more information.
+
+Return Value
+~~~~~~~~~~~~
+
+On success 0 is returned, on error -1 and the ``errno`` variable is set
+appropriately. The generic error codes are described at the
+:ref:`Generic Error Codes <gen-errors>` chapter.
+
+
+-----
+
+
+VIDEO_TRY_COMMAND
+-----------------
+
+Synopsis
+~~~~~~~~
+
+.. c:macro:: VIDEO_TRY_COMMAND
+
+.. code-block:: c
+
+	int ioctl(int fd, int request = VIDEO_TRY_COMMAND,
+	struct video_command *cmd)
+
+Arguments
+~~~~~~~~~
+
+.. flat-table::
+    :header-rows:  0
+    :stub-columns: 0
+
+    -  ..
+
+       -  ``int fd``
+
+       -  :cspan:`1` File descriptor returned by a previous call
+          to `open()`_.
+
+    -  ..
+
+       -  ``int request``
+
+       -  Equals ``VIDEO_TRY_COMMAND`` for this command.
+
+    -  ..
+
+       -  `struct video_command`_ ``*cmd``
+
+       -  Try a decoder command.
+
+Description
+~~~~~~~~~~~
+
+.. attention:: Do **not** use in new drivers!
+             See: :ref:`legacy_dvb_decoder_notes`
+
+For V4L2 decoders this ioctl has been replaced by the
+:ref:`VIDIOC_TRY_DECODER_CMD <VIDIOC_DECODER_CMD>` ioctl.
+
+This ioctl tries a decoder command. The `struct video_command`_ is a
+subset of the ``v4l2_decoder_cmd`` struct, so refer to the
+:ref:`VIDIOC_TRY_DECODER_CMD <VIDIOC_DECODER_CMD>` documentation
+for more information.
+
+Return Value
+~~~~~~~~~~~~
+
+On success 0 is returned, on error -1 and the ``errno`` variable is set
+appropriately. The generic error codes are described at the
+:ref:`Generic Error Codes <gen-errors>` chapter.
+
+
+-----
+
+
+open()
+------
+
+Synopsis
+~~~~~~~~
+
+.. code-block:: c
+
+    #include <fcntl.h>
+
+.. c:function:: 	int open(const char *deviceName, int flags)
+
+Arguments
+~~~~~~~~~
+
+.. flat-table::
+    :header-rows:  0
+    :stub-columns: 0
+
+    -  ..
+
+       -  ``const char *deviceName``
+
+       -  Name of specific video device.
+
+    -  ..
+
+       -  :rspan:`3` ``int flags``
+
+       -  :cspan:`1` A bit-wise OR of the following flags:
+
+    -  ..
+
+       -  ``O_RDONLY``
+
+       -  read-only access
+
+    -  ..
+
+       -  ``O_RDWR``
+
+       -  read/write access
+
+    -  ..
+
+       -  ``O_NONBLOCK``
+       -  | Open in non-blocking mode
+          | (blocking mode is the default)
+
+Description
+~~~~~~~~~~~
+
+This system call opens a named video device (e.g.
+/dev/dvb/adapter?/video?) for subsequent use.
+
+When an open() call has succeeded, the device will be ready for use. The
+significance of blocking or non-blocking mode is described in the
+documentation for functions where there is a difference. It does not
+affect the semantics of the open() call itself. A device opened in
+blocking mode can later be put into non-blocking mode (and vice versa)
+using the F_SETFL command of the fcntl system call. This is a standard
+system call, documented in the Linux manual page for fcntl. Only one
+user can open the Video Device in O_RDWR mode. All other attempts to
+open the device in this mode will fail, and an error-code will be
+returned. If the Video Device is opened in O_RDONLY mode, the only
+ioctl call that can be used is `VIDEO_GET_STATUS`_. All other call will
+return an error code.
+
+Return Value
+~~~~~~~~~~~~
+
+.. flat-table::
+    :header-rows:  0
+    :stub-columns: 0
+
+    -  ..
+
+       -  ``ENODEV``
+
+       -  :cspan:`1` Device driver not loaded/available.
+
+    -  ..
+
+       -  ``EINTERNAL``
+
+       -  Internal error.
+
+    -  ..
+
+       -  ``EBUSY``
+
+       -  Device or resource busy.
+
+    -  ..
+
+       -  ``EINVAL``
+
+       -  Invalid argument.
+
+
+-----
+
+
+close()
+-------
+
+Synopsis
+~~~~~~~~
+
+.. c:function:: 	int close(int fd)
+
+Arguments
+~~~~~~~~~
+
+.. flat-table::
+    :header-rows:  0
+    :stub-columns: 0
+
+    -  ..
+
+       -  ``int fd``
+
+       -  :cspan:`1` File descriptor returned by a previous call
+          to `open()`_.
+
+Description
+~~~~~~~~~~~
+
+This system call closes a previously opened video device.
+
+Return Value
+~~~~~~~~~~~~
+
+.. flat-table::
+    :header-rows:  0
+    :stub-columns: 0
+
+    -  ..
+
+       -  ``EBADF``
+
+       -  fd is not a valid open file descriptor.
+
+
+-----
+
+
+write()
+-------
+
+Synopsis
+~~~~~~~~
+
+.. c:function:: size_t write(int fd, const void *buf, size_t count)
+
+Arguments
+~~~~~~~~~
+
+.. flat-table::
+    :header-rows:  0
+    :stub-columns: 0
+
+    -  ..
+
+       -  ``int fd``
+
+       -  :cspan:`1` File descriptor returned by a previous call
+          to `open()`_.
+
+    -  ..
+
+       -  ``void *buf``
+
+       -  Pointer to the buffer containing the PES data.
+
+    -  ..
+
+       -  ``size_t count``
+
+       -  Size of buf.
+
+Description
+~~~~~~~~~~~
+
+This system call can only be used if VIDEO_SOURCE_MEMORY is selected
+in the ioctl call `VIDEO_SELECT_SOURCE`_. The data provided shall be in
+PES format, unless the capability allows other formats. TS is the
+most common format for storing DVB-data, it is usually supported too.
+If O_NONBLOCK is not specified the function will block until buffer space
+is available. The amount of data to be transferred is implied by count.
+
+.. note:: See: :ref:`DVB Data Formats <legacy_dvb_decoder_formats>`
+
+Return Value
+~~~~~~~~~~~~
+
+.. flat-table::
+    :header-rows:  0
+    :stub-columns: 0
+
+    -  ..
+
+       -  ``EPERM``
+
+       -  :cspan:`1` Mode ``VIDEO_SOURCE_MEMORY`` not selected.
+
+    -  ..
+
+       -  ``ENOMEM``
+
+       -  Attempted to write more data than the internal buffer can hold.
+
+    -  ..
+
+       -  ``EBADF``
+
+       -  fd is not a valid open file descriptor.
-- 
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