[media] docs-rst: convert uAPI structs to C domain
instead of declaring the uAPI structs using usual refs, e. g.: .. _foo-struct: Use the C domain way: .. c:type:: foo_struct This way, the kAPI documentation can use cross-references to point to the uAPI symbols. That solves about ~100 undefined warnings like: WARNING: c:type reference target not found: foo_struct Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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@@ -25,7 +25,7 @@ Querying Capabilities
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Devices supporting the video output interface set the
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``V4L2_CAP_VIDEO_OUTPUT`` or ``V4L2_CAP_VIDEO_OUTPUT_MPLANE`` flag in
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the ``capabilities`` field of struct
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:ref:`v4l2_capability <v4l2-capability>` returned by the
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:c:type:`v4l2_capability` returned by the
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:ref:`VIDIOC_QUERYCAP` ioctl. As secondary device
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functions they may also support the :ref:`raw VBI output <raw-vbi>`
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(``V4L2_CAP_VBI_OUTPUT``) interface. At least one of the read/write or
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@@ -62,17 +62,17 @@ Cropping initialization at minimum requires to reset the parameters to
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defaults. An example is given in :ref:`crop`.
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To query the current image format applications set the ``type`` field of
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a struct :ref:`v4l2_format <v4l2-format>` to
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a struct :c:type:`v4l2_format` to
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``V4L2_BUF_TYPE_VIDEO_OUTPUT`` or ``V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE``
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and call the :ref:`VIDIOC_G_FMT <VIDIOC_G_FMT>` ioctl with a pointer
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to this structure. Drivers fill the struct
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:ref:`v4l2_pix_format <v4l2-pix-format>` ``pix`` or the struct
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:ref:`v4l2_pix_format_mplane <v4l2-pix-format-mplane>` ``pix_mp``
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:c:type:`v4l2_pix_format` ``pix`` or the struct
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:c:type:`v4l2_pix_format_mplane` ``pix_mp``
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member of the ``fmt`` union.
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To request different parameters applications set the ``type`` field of a
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struct :ref:`v4l2_format <v4l2-format>` as above and initialize all
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fields of the struct :ref:`v4l2_pix_format <v4l2-pix-format>`
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struct :c:type:`v4l2_format` as above and initialize all
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fields of the struct :c:type:`v4l2_pix_format`
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``vbi`` member of the ``fmt`` union, or better just modify the results
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of :ref:`VIDIOC_G_FMT <VIDIOC_G_FMT>`, and call the :ref:`VIDIOC_S_FMT <VIDIOC_G_FMT>`
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ioctl with a pointer to this structure. Drivers may adjust the
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@@ -83,8 +83,8 @@ Like :ref:`VIDIOC_S_FMT <VIDIOC_G_FMT>` the :ref:`VIDIOC_TRY_FMT <VIDIOC_G_FMT>`
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can be used to learn about hardware limitations without disabling I/O or
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possibly time consuming hardware preparations.
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The contents of struct :ref:`v4l2_pix_format <v4l2-pix-format>` and
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struct :ref:`v4l2_pix_format_mplane <v4l2-pix-format-mplane>` are
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The contents of struct :c:type:`v4l2_pix_format` and
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struct :c:type:`v4l2_pix_format_mplane` are
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discussed in :ref:`pixfmt`. See also the specification of the
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:ref:`VIDIOC_G_FMT <VIDIOC_G_FMT>`, :ref:`VIDIOC_S_FMT <VIDIOC_G_FMT>` and :ref:`VIDIOC_TRY_FMT <VIDIOC_G_FMT>` ioctls for
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details. Video output devices must implement both the :ref:`VIDIOC_G_FMT <VIDIOC_G_FMT>`
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