mirror of https://gitee.com/openkylin/linux.git
[media] DocBook/media/v4l: remove the documentation of the obsolete dv_preset API
This API is no longer used by any driver and so can be removed from the documentation. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Hans Verkuil
Mauro Carvalho Chehab
parent
02fa628217
commit
098cbc38c2
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@ -749,15 +749,6 @@ polarities, frontporch, backporch etc. The <filename>linux/v4l2-dv-timings.h</fi
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header can be used to get the timings of the formats in the <xref linkend="cea861" /> and
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<xref linkend="vesadmt" /> standards.
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</para>
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</listitem>
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<listitem>
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<para>DV Presets: Digital Video (DV) presets (<emphasis role="bold">deprecated</emphasis>).
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These are IDs representing a
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video timing at the input/output. Presets are pre-defined timings implemented
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by the hardware according to video standards. A __u32 data type is used to represent
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a preset unlike the bit mask that is used in &v4l2-std-id; allowing future extensions
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to support as many different presets as needed. This API is deprecated in favor of the DV Timings
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API.</para>
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</listitem>
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</itemizedlist>
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<para>To enumerate and query the attributes of the DV timings supported by a device,
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@ -766,11 +757,6 @@ API.</para>
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&VIDIOC-S-DV-TIMINGS; ioctl and to get current DV timings they use the
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&VIDIOC-G-DV-TIMINGS; ioctl. To detect the DV timings as seen by the video receiver applications
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use the &VIDIOC-QUERY-DV-TIMINGS; ioctl.</para>
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<para>To enumerate and query the attributes of DV presets supported by a device,
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applications use the &VIDIOC-ENUM-DV-PRESETS; ioctl. To get the current DV preset,
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applications use the &VIDIOC-G-DV-PRESET; ioctl and to set a preset they use the
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&VIDIOC-S-DV-PRESET; ioctl. To detect the preset as seen by the video receiver applications
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use the &VIDIOC-QUERY-DV-PRESET; ioctl.</para>
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<para>Applications can make use of the <xref linkend="input-capabilities" /> and
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<xref linkend="output-capabilities"/> flags to decide what ioctls are available to set the
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video timings for the device.</para>
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@ -2625,8 +2625,8 @@ interfaces and should not be implemented in new drivers.</para>
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<xref linkend="extended-controls" />.</para>
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</listitem>
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<listitem>
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<para>&VIDIOC-G-DV-PRESET;, &VIDIOC-S-DV-PRESET;, &VIDIOC-ENUM-DV-PRESETS; and
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&VIDIOC-QUERY-DV-PRESET; ioctls. Use the DV Timings API (<xref linkend="dv-timings" />).</para>
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<para>VIDIOC_G_DV_PRESET, VIDIOC_S_DV_PRESET, VIDIOC_ENUM_DV_PRESETS and
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VIDIOC_QUERY_DV_PRESET ioctls. Use the DV Timings API (<xref linkend="dv-timings" />).</para>
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</listitem>
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<listitem>
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<para><constant>VIDIOC_SUBDEV_G_CROP</constant> and
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@ -544,7 +544,6 @@ and discussions on the V4L mailing list.</revremark>
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&sub-encoder-cmd;
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&sub-enumaudio;
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&sub-enumaudioout;
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&sub-enum-dv-presets;
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&sub-enum-dv-timings;
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&sub-enum-fmt;
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&sub-enum-framesizes;
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@ -558,7 +557,6 @@ and discussions on the V4L mailing list.</revremark>
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&sub-g-audioout;
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&sub-g-crop;
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&sub-g-ctrl;
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&sub-g-dv-preset;
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&sub-g-dv-timings;
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&sub-g-enc-index;
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&sub-g-ext-ctrls;
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@ -582,7 +580,6 @@ and discussions on the V4L mailing list.</revremark>
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&sub-querybuf;
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&sub-querycap;
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&sub-queryctrl;
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&sub-query-dv-preset;
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&sub-query-dv-timings;
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&sub-querystd;
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&sub-reqbufs;
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@ -1,240 +0,0 @@
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<refentry id="vidioc-enum-dv-presets">
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<refmeta>
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<refentrytitle>ioctl VIDIOC_ENUM_DV_PRESETS</refentrytitle>
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&manvol;
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</refmeta>
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<refnamediv>
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<refname>VIDIOC_ENUM_DV_PRESETS</refname>
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<refpurpose>Enumerate supported Digital Video presets</refpurpose>
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</refnamediv>
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<refsynopsisdiv>
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<funcsynopsis>
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<funcprototype>
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<funcdef>int <function>ioctl</function></funcdef>
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<paramdef>int <parameter>fd</parameter></paramdef>
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<paramdef>int <parameter>request</parameter></paramdef>
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<paramdef>struct v4l2_dv_enum_preset *<parameter>argp</parameter></paramdef>
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</funcprototype>
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</funcsynopsis>
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</refsynopsisdiv>
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<refsect1>
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<title>Arguments</title>
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<variablelist>
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<varlistentry>
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<term><parameter>fd</parameter></term>
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<listitem>
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<para>&fd;</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><parameter>request</parameter></term>
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<listitem>
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<para>VIDIOC_ENUM_DV_PRESETS</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><parameter>argp</parameter></term>
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<listitem>
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<para></para>
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</listitem>
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</varlistentry>
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</variablelist>
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</refsect1>
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<refsect1>
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<title>Description</title>
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<para>This ioctl is <emphasis role="bold">deprecated</emphasis>.
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New drivers and applications should use &VIDIOC-ENUM-DV-TIMINGS; instead.
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</para>
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<para>To query the attributes of a DV preset, applications initialize the
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<structfield>index</structfield> field and zero the reserved array of &v4l2-dv-enum-preset;
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and call the <constant>VIDIOC_ENUM_DV_PRESETS</constant> ioctl with a pointer to this
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structure. Drivers fill the rest of the structure or return an
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&EINVAL; when the index is out of bounds. To enumerate all DV Presets supported,
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applications shall begin at index zero, incrementing by one until the
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driver returns <errorcode>EINVAL</errorcode>. Drivers may enumerate a
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different set of DV presets after switching the video input or
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output.</para>
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<table pgwide="1" frame="none" id="v4l2-dv-enum-preset">
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<title>struct <structname>v4l2_dv_enum_presets</structname></title>
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<tgroup cols="3">
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&cs-str;
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<tbody valign="top">
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<row>
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<entry>__u32</entry>
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<entry><structfield>index</structfield></entry>
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<entry>Number of the DV preset, set by the
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application.</entry>
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</row>
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<row>
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<entry>__u32</entry>
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<entry><structfield>preset</structfield></entry>
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<entry>This field identifies one of the DV preset values listed in <xref linkend="v4l2-dv-presets-vals"/>.</entry>
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</row>
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<row>
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<entry>__u8</entry>
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<entry><structfield>name</structfield>[24]</entry>
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<entry>Name of the preset, a NUL-terminated ASCII string, for example: "720P-60", "1080I-60". This information is
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intended for the user.</entry>
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</row>
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<row>
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<entry>__u32</entry>
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<entry><structfield>width</structfield></entry>
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<entry>Width of the active video in pixels for the DV preset.</entry>
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</row>
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<row>
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<entry>__u32</entry>
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<entry><structfield>height</structfield></entry>
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<entry>Height of the active video in lines for the DV preset.</entry>
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</row>
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<row>
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<entry>__u32</entry>
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<entry><structfield>reserved</structfield>[4]</entry>
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<entry>Reserved for future extensions. Drivers must set the array to zero.</entry>
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</row>
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</tbody>
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</tgroup>
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</table>
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<table pgwide="1" frame="none" id="v4l2-dv-presets-vals">
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<title>struct <structname>DV Presets</structname></title>
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<tgroup cols="3">
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&cs-str;
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<tbody valign="top">
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<row>
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<entry>Preset</entry>
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<entry>Preset value</entry>
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<entry>Description</entry>
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</row>
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<row>
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<entry></entry>
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<entry></entry>
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<entry></entry>
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</row>
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<row>
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<entry>V4L2_DV_INVALID</entry>
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<entry>0</entry>
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<entry>Invalid preset value.</entry>
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</row>
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<row>
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<entry>V4L2_DV_480P59_94</entry>
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<entry>1</entry>
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<entry>720x480 progressive video at 59.94 fps as per BT.1362.</entry>
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</row>
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<row>
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<entry>V4L2_DV_576P50</entry>
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<entry>2</entry>
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<entry>720x576 progressive video at 50 fps as per BT.1362.</entry>
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</row>
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<row>
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<entry>V4L2_DV_720P24</entry>
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<entry>3</entry>
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<entry>1280x720 progressive video at 24 fps as per SMPTE 296M.</entry>
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</row>
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<row>
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<entry>V4L2_DV_720P25</entry>
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<entry>4</entry>
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<entry>1280x720 progressive video at 25 fps as per SMPTE 296M.</entry>
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</row>
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<row>
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<entry>V4L2_DV_720P30</entry>
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<entry>5</entry>
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<entry>1280x720 progressive video at 30 fps as per SMPTE 296M.</entry>
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</row>
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<row>
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<entry>V4L2_DV_720P50</entry>
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<entry>6</entry>
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<entry>1280x720 progressive video at 50 fps as per SMPTE 296M.</entry>
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</row>
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<row>
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<entry>V4L2_DV_720P59_94</entry>
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<entry>7</entry>
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<entry>1280x720 progressive video at 59.94 fps as per SMPTE 274M.</entry>
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</row>
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<row>
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<entry>V4L2_DV_720P60</entry>
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<entry>8</entry>
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<entry>1280x720 progressive video at 60 fps as per SMPTE 274M/296M.</entry>
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</row>
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<row>
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<entry>V4L2_DV_1080I29_97</entry>
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<entry>9</entry>
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<entry>1920x1080 interlaced video at 29.97 fps as per BT.1120/SMPTE 274M.</entry>
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</row>
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<row>
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<entry>V4L2_DV_1080I30</entry>
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<entry>10</entry>
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<entry>1920x1080 interlaced video at 30 fps as per BT.1120/SMPTE 274M.</entry>
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</row>
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<row>
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<entry>V4L2_DV_1080I25</entry>
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<entry>11</entry>
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<entry>1920x1080 interlaced video at 25 fps as per BT.1120.</entry>
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</row>
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<row>
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<entry>V4L2_DV_1080I50</entry>
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<entry>12</entry>
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<entry>1920x1080 interlaced video at 50 fps as per SMPTE 296M.</entry>
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</row>
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<row>
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<entry>V4L2_DV_1080I60</entry>
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<entry>13</entry>
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<entry>1920x1080 interlaced video at 60 fps as per SMPTE 296M.</entry>
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</row>
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<row>
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<entry>V4L2_DV_1080P24</entry>
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<entry>14</entry>
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<entry>1920x1080 progressive video at 24 fps as per SMPTE 296M.</entry>
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</row>
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<row>
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<entry>V4L2_DV_1080P25</entry>
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<entry>15</entry>
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<entry>1920x1080 progressive video at 25 fps as per SMPTE 296M.</entry>
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</row>
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<row>
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<entry>V4L2_DV_1080P30</entry>
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<entry>16</entry>
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<entry>1920x1080 progressive video at 30 fps as per SMPTE 296M.</entry>
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</row>
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<row>
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<entry>V4L2_DV_1080P50</entry>
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<entry>17</entry>
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<entry>1920x1080 progressive video at 50 fps as per BT.1120.</entry>
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</row>
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<row>
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<entry>V4L2_DV_1080P60</entry>
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<entry>18</entry>
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<entry>1920x1080 progressive video at 60 fps as per BT.1120.</entry>
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</row>
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</tbody>
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</tgroup>
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</table>
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</refsect1>
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<refsect1>
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&return-value;
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<variablelist>
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<varlistentry>
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<term><errorcode>EINVAL</errorcode></term>
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<listitem>
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<para>The &v4l2-dv-enum-preset; <structfield>index</structfield>
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is out of bounds.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><errorcode>ENODATA</errorcode></term>
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<listitem>
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<para>Digital video presets are not supported for this input or output.</para>
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</listitem>
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</varlistentry>
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</variablelist>
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</refsect1>
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</refentry>
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@ -277,11 +277,6 @@ input/output interface to linux-media@vger.kernel.org on 19 Oct 2009.
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<tgroup cols="3">
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&cs-def;
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<tbody valign="top">
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<row>
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<entry><constant>V4L2_IN_CAP_PRESETS</constant></entry>
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<entry>0x00000001</entry>
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<entry>This input supports setting DV presets by using VIDIOC_S_DV_PRESET.</entry>
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</row>
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<row>
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<entry><constant>V4L2_IN_CAP_DV_TIMINGS</constant></entry>
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<entry>0x00000002</entry>
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@ -162,11 +162,6 @@ input/output interface to linux-media@vger.kernel.org on 19 Oct 2009.
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<tgroup cols="3">
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&cs-def;
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<tbody valign="top">
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<row>
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<entry><constant>V4L2_OUT_CAP_PRESETS</constant></entry>
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<entry>0x00000001</entry>
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<entry>This output supports setting DV presets by using VIDIOC_S_DV_PRESET.</entry>
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</row>
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<row>
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<entry><constant>V4L2_OUT_CAP_DV_TIMINGS</constant></entry>
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<entry>0x00000002</entry>
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@ -1,113 +0,0 @@
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<refentry id="vidioc-g-dv-preset">
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<refmeta>
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<refentrytitle>ioctl VIDIOC_G_DV_PRESET, VIDIOC_S_DV_PRESET</refentrytitle>
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&manvol;
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</refmeta>
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<refnamediv>
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<refname>VIDIOC_G_DV_PRESET</refname>
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<refname>VIDIOC_S_DV_PRESET</refname>
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<refpurpose>Query or select the DV preset of the current input or output</refpurpose>
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</refnamediv>
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<refsynopsisdiv>
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<funcsynopsis>
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<funcprototype>
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<funcdef>int <function>ioctl</function></funcdef>
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<paramdef>int <parameter>fd</parameter></paramdef>
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<paramdef>int <parameter>request</parameter></paramdef>
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<paramdef>struct v4l2_dv_preset *<parameter>argp</parameter></paramdef>
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</funcprototype>
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</funcsynopsis>
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</refsynopsisdiv>
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<refsect1>
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<title>Arguments</title>
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<variablelist>
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<varlistentry>
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<term><parameter>fd</parameter></term>
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<listitem>
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<para>&fd;</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><parameter>request</parameter></term>
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<listitem>
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<para>VIDIOC_G_DV_PRESET, VIDIOC_S_DV_PRESET</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><parameter>argp</parameter></term>
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<listitem>
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<para></para>
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</listitem>
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</varlistentry>
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</variablelist>
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</refsect1>
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<refsect1>
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<title>Description</title>
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<para>These ioctls are <emphasis role="bold">deprecated</emphasis>.
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New drivers and applications should use &VIDIOC-G-DV-TIMINGS; and &VIDIOC-S-DV-TIMINGS;
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instead.
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</para>
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<para>To query and select the current DV preset, applications
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use the <constant>VIDIOC_G_DV_PRESET</constant> and <constant>VIDIOC_S_DV_PRESET</constant>
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ioctls which take a pointer to a &v4l2-dv-preset; type as argument.
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Applications must zero the reserved array in &v4l2-dv-preset;.
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<constant>VIDIOC_G_DV_PRESET</constant> returns a dv preset in the field
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<structfield>preset</structfield> of &v4l2-dv-preset;.</para>
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<para><constant>VIDIOC_S_DV_PRESET</constant> accepts a pointer to a &v4l2-dv-preset;
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that has the preset value to be set. Applications must zero the reserved array in &v4l2-dv-preset;.
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If the preset is not supported, it returns an &EINVAL; </para>
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</refsect1>
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<refsect1>
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&return-value;
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<variablelist>
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<varlistentry>
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<term><errorcode>EINVAL</errorcode></term>
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<listitem>
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<para>This ioctl is not supported, or the
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<constant>VIDIOC_S_DV_PRESET</constant>,<constant>VIDIOC_S_DV_PRESET</constant> parameter was unsuitable.</para>
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</listitem>
|
||||
</varlistentry>
|
||||
<varlistentry>
|
||||
<term><errorcode>ENODATA</errorcode></term>
|
||||
<listitem>
|
||||
<para>Digital video presets are not supported for this input or output.</para>
|
||||
</listitem>
|
||||
</varlistentry>
|
||||
<varlistentry>
|
||||
<term><errorcode>EBUSY</errorcode></term>
|
||||
<listitem>
|
||||
<para>The device is busy and therefore can not change the preset.</para>
|
||||
</listitem>
|
||||
</varlistentry>
|
||||
</variablelist>
|
||||
|
||||
<table pgwide="1" frame="none" id="v4l2-dv-preset">
|
||||
<title>struct <structname>v4l2_dv_preset</structname></title>
|
||||
<tgroup cols="3">
|
||||
&cs-str;
|
||||
<tbody valign="top">
|
||||
<row>
|
||||
<entry>__u32</entry>
|
||||
<entry><structfield>preset</structfield></entry>
|
||||
<entry>Preset value to represent the digital video timings</entry>
|
||||
</row>
|
||||
<row>
|
||||
<entry>__u32</entry>
|
||||
<entry><structfield>reserved[4]</structfield></entry>
|
||||
<entry>Reserved fields for future use</entry>
|
||||
</row>
|
||||
</tbody>
|
||||
</tgroup>
|
||||
</table>
|
||||
</refsect1>
|
||||
</refentry>
|
||||
|
|
@ -1,78 +0,0 @@
|
|||
<refentry id="vidioc-query-dv-preset">
|
||||
<refmeta>
|
||||
<refentrytitle>ioctl VIDIOC_QUERY_DV_PRESET</refentrytitle>
|
||||
&manvol;
|
||||
</refmeta>
|
||||
|
||||
<refnamediv>
|
||||
<refname>VIDIOC_QUERY_DV_PRESET</refname>
|
||||
<refpurpose>Sense the DV preset received by the current
|
||||
input</refpurpose>
|
||||
</refnamediv>
|
||||
|
||||
<refsynopsisdiv>
|
||||
<funcsynopsis>
|
||||
<funcprototype>
|
||||
<funcdef>int <function>ioctl</function></funcdef>
|
||||
<paramdef>int <parameter>fd</parameter></paramdef>
|
||||
<paramdef>int <parameter>request</parameter></paramdef>
|
||||
<paramdef>struct v4l2_dv_preset *<parameter>argp</parameter></paramdef>
|
||||
</funcprototype>
|
||||
</funcsynopsis>
|
||||
</refsynopsisdiv>
|
||||
|
||||
<refsect1>
|
||||
<title>Arguments</title>
|
||||
|
||||
<variablelist>
|
||||
<varlistentry>
|
||||
<term><parameter>fd</parameter></term>
|
||||
<listitem>
|
||||
<para>&fd;</para>
|
||||
</listitem>
|
||||
</varlistentry>
|
||||
<varlistentry>
|
||||
<term><parameter>request</parameter></term>
|
||||
<listitem>
|
||||
<para>VIDIOC_QUERY_DV_PRESET</para>
|
||||
</listitem>
|
||||
</varlistentry>
|
||||
<varlistentry>
|
||||
<term><parameter>argp</parameter></term>
|
||||
<listitem>
|
||||
<para></para>
|
||||
</listitem>
|
||||
</varlistentry>
|
||||
</variablelist>
|
||||
</refsect1>
|
||||
|
||||
<refsect1>
|
||||
<title>Description</title>
|
||||
|
||||
<para>This ioctl is <emphasis role="bold">deprecated</emphasis>.
|
||||
New drivers and applications should use &VIDIOC-QUERY-DV-TIMINGS; instead.
|
||||
</para>
|
||||
|
||||
<para>The hardware may be able to detect the current DV preset
|
||||
automatically, similar to sensing the video standard. To do so, applications
|
||||
call <constant> VIDIOC_QUERY_DV_PRESET</constant> with a pointer to a
|
||||
&v4l2-dv-preset; type. Once the hardware detects a preset, that preset is
|
||||
returned in the preset field of &v4l2-dv-preset;. If the preset could not be
|
||||
detected because there was no signal, or the signal was unreliable, or the
|
||||
signal did not map to a supported preset, then the value V4L2_DV_INVALID is
|
||||
returned.</para>
|
||||
</refsect1>
|
||||
|
||||
<refsect1>
|
||||
&return-value;
|
||||
|
||||
<variablelist>
|
||||
<varlistentry>
|
||||
<term><errorcode>ENODATA</errorcode></term>
|
||||
<listitem>
|
||||
<para>Digital video presets are not supported for this input or output.</para>
|
||||
</listitem>
|
||||
</varlistentry>
|
||||
</variablelist>
|
||||
</refsect1>
|
||||
</refentry>
|
||||
Loading…
Reference in New Issue