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authorLinus Torvalds <torvalds@linux-foundation.org>2009-12-16 10:09:16 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2009-12-16 10:09:16 -0800
commit6a5df38f5f07981dda5457ec6c05efe1c4200d84 (patch)
treed82c3862f7ba719d7723111140a0c89e6387cb19 /Documentation/DocBook/v4l/vidioc-enum-dv-presets.xml
parent9cfc86249f32d984339c6d1f8a1fd1326989b3b8 (diff)
parent262ab9ac0daadebcece8e3cbf3ae66ee8774cfd7 (diff)
Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6: (116 commits) V4L/DVB (13698): pms: replace asm/uaccess.h to linux/uaccess.h V4L/DVB (13690): radio/si470x: #include <sched.h> V4L/DVB (13688): au8522: modify the attributes of local filter coefficients V4L/DVB (13687): cx231xx: use NULL when pointer is needed V4L/DVB: Davinci VPFE Capture: remove unused #include <linux/version.h> V4L/DVB (13685): Correct code taking the size of a pointer V4L/DVB (13684): Fix some cut-and-paste noise in dib0090.h V4L/DVB (13683): sanio-ms: clean up init, exit and id_table V4L/DVB (13682): dib8000: make some constant static V4L/DVB: lgs8gxx: Use shifts rather than multiply/divide when possible V4L/DVB (13680b): DocBook/media: create links for included sources V4L/DVB (13680a): DocBook/media: copy images after building HTML V4L/DVB (13678): Add support for yet another DvbWorld, TeVii and Prof USB devices V4L/DVB (13676): configurable IRQ mode on NetUP Dual DVB-S2 CI; IRQ from CAM processing (CI interface works faster) V4L/DVB (13674): stv090x: Add DiSEqC envelope mode V4L/DVB (13673): lnbp21: Implement 22 kHz tone control V4L/DVB (13671): sh_mobile_ceu_camera: Remove frame size page alignment V4L/DVB (13670): soc-camera: Add mt9t112 camera driver V4L/DVB (13669): tw9910: Add sync polarity support V4L/DVB (13668): tw9910: remove cropping ...
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+<refentry id="vidioc-enum-dv-presets">
+ <refmeta>
+ <refentrytitle>ioctl VIDIOC_ENUM_DV_PRESETS</refentrytitle>
+ &manvol;
+ </refmeta>
+
+ <refnamediv>
+ <refname>VIDIOC_ENUM_DV_PRESETS</refname>
+ <refpurpose>Enumerate supported Digital Video presets</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_enum_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_ENUM_DV_PRESETS</para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><parameter>argp</parameter></term>
+ <listitem>
+ <para></para>
+ </listitem>
+ </varlistentry>
+ </variablelist>
+ </refsect1>
+
+ <refsect1>
+ <title>Description</title>
+
+ <para>To query the attributes of a DV preset, applications initialize the
+<structfield>index</structfield> field and zero the reserved array of &v4l2-dv-enum-preset;
+and call the <constant>VIDIOC_ENUM_DV_PRESETS</constant> ioctl with a pointer to this
+structure. Drivers fill the rest of the structure or return an
+&EINVAL; when the index is out of bounds. To enumerate all DV Presets supported,
+applications shall begin at index zero, incrementing by one until the
+driver returns <errorcode>EINVAL</errorcode>. Drivers may enumerate a
+different set of DV presets after switching the video input or
+output.</para>
+
+ <table pgwide="1" frame="none" id="v4l2-dv-enum-preset">
+ <title>struct <structname>v4l2_dv_enum_presets</structname></title>
+ <tgroup cols="3">
+ &cs-str;
+ <tbody valign="top">
+ <row>
+ <entry>__u32</entry>
+ <entry><structfield>index</structfield></entry>
+ <entry>Number of the DV preset, set by the
+application.</entry>
+ </row>
+ <row>
+ <entry>__u32</entry>
+ <entry><structfield>preset</structfield></entry>
+ <entry>This field identifies one of the DV preset values listed in <xref linkend="v4l2-dv-presets-vals"/>.</entry>
+ </row>
+ <row>
+ <entry>__u8</entry>
+ <entry><structfield>name</structfield>[24]</entry>
+ <entry>Name of the preset, a NUL-terminated ASCII string, for example: "720P-60", "1080I-60". This information is
+intended for the user.</entry>
+ </row>
+ <row>
+ <entry>__u32</entry>
+ <entry><structfield>width</structfield></entry>
+ <entry>Width of the active video in pixels for the DV preset.</entry>
+ </row>
+ <row>
+ <entry>__u32</entry>
+ <entry><structfield>height</structfield></entry>
+ <entry>Height of the active video in lines for the DV preset.</entry>
+ </row>
+ <row>
+ <entry>__u32</entry>
+ <entry><structfield>reserved</structfield>[4]</entry>
+ <entry>Reserved for future extensions. Drivers must set the array to zero.</entry>
+ </row>
+ </tbody>
+ </tgroup>
+ </table>
+
+ <table pgwide="1" frame="none" id="v4l2-dv-presets-vals">
+ <title>struct <structname>DV Presets</structname></title>
+ <tgroup cols="3">
+ &cs-str;
+ <tbody valign="top">
+ <row>
+ <entry>Preset</entry>
+ <entry>Preset value</entry>
+ <entry>Description</entry>
+ </row>
+ <row>
+ <entry></entry>
+ <entry></entry>
+ <entry></entry>
+ </row>
+ <row>
+ <entry>V4L2_DV_INVALID</entry>
+ <entry>0</entry>
+ <entry>Invalid preset value.</entry>
+ </row>
+ <row>
+ <entry>V4L2_DV_480P59_94</entry>
+ <entry>1</entry>
+ <entry>720x480 progressive video at 59.94 fps as per BT.1362.</entry>
+ </row>
+ <row>
+ <entry>V4L2_DV_576P50</entry>
+ <entry>2</entry>
+ <entry>720x576 progressive video at 50 fps as per BT.1362.</entry>
+ </row>
+ <row>
+ <entry>V4L2_DV_720P24</entry>
+ <entry>3</entry>
+ <entry>1280x720 progressive video at 24 fps as per SMPTE 296M.</entry>
+ </row>
+ <row>
+ <entry>V4L2_DV_720P25</entry>
+ <entry>4</entry>
+ <entry>1280x720 progressive video at 25 fps as per SMPTE 296M.</entry>
+ </row>
+ <row>
+ <entry>V4L2_DV_720P30</entry>
+ <entry>5</entry>
+ <entry>1280x720 progressive video at 30 fps as per SMPTE 296M.</entry>
+ </row>
+ <row>
+ <entry>V4L2_DV_720P50</entry>
+ <entry>6</entry>
+ <entry>1280x720 progressive video at 50 fps as per SMPTE 296M.</entry>
+ </row>
+ <row>
+ <entry>V4L2_DV_720P59_94</entry>
+ <entry>7</entry>
+ <entry>1280x720 progressive video at 59.94 fps as per SMPTE 274M.</entry>
+ </row>
+ <row>
+ <entry>V4L2_DV_720P60</entry>
+ <entry>8</entry>
+ <entry>1280x720 progressive video at 60 fps as per SMPTE 274M/296M.</entry>
+ </row>
+ <row>
+ <entry>V4L2_DV_1080I29_97</entry>
+ <entry>9</entry>
+ <entry>1920x1080 interlaced video at 29.97 fps as per BT.1120/SMPTE 274M.</entry>
+ </row>
+ <row>
+ <entry>V4L2_DV_1080I30</entry>
+ <entry>10</entry>
+ <entry>1920x1080 interlaced video at 30 fps as per BT.1120/SMPTE 274M.</entry>
+ </row>
+ <row>
+ <entry>V4L2_DV_1080I25</entry>
+ <entry>11</entry>
+ <entry>1920x1080 interlaced video at 25 fps as per BT.1120.</entry>
+ </row>
+ <row>
+ <entry>V4L2_DV_1080I50</entry>
+ <entry>12</entry>
+ <entry>1920x1080 interlaced video at 50 fps as per SMPTE 296M.</entry>
+ </row>
+ <row>
+ <entry>V4L2_DV_1080I60</entry>
+ <entry>13</entry>
+ <entry>1920x1080 interlaced video at 60 fps as per SMPTE 296M.</entry>
+ </row>
+ <row>
+ <entry>V4L2_DV_1080P24</entry>
+ <entry>14</entry>
+ <entry>1920x1080 progressive video at 24 fps as per SMPTE 296M.</entry>
+ </row>
+ <row>
+ <entry>V4L2_DV_1080P25</entry>
+ <entry>15</entry>
+ <entry>1920x1080 progressive video at 25 fps as per SMPTE 296M.</entry>
+ </row>
+ <row>
+ <entry>V4L2_DV_1080P30</entry>
+ <entry>16</entry>
+ <entry>1920x1080 progressive video at 30 fps as per SMPTE 296M.</entry>
+ </row>
+ <row>
+ <entry>V4L2_DV_1080P50</entry>
+ <entry>17</entry>
+ <entry>1920x1080 progressive video at 50 fps as per BT.1120.</entry>
+ </row>
+ <row>
+ <entry>V4L2_DV_1080P60</entry>
+ <entry>18</entry>
+ <entry>1920x1080 progressive video at 60 fps as per BT.1120.</entry>
+ </row>
+ </tbody>
+ </tgroup>
+ </table>
+ </refsect1>
+
+ <refsect1>
+ &return-value;
+
+ <variablelist>
+ <varlistentry>
+ <term><errorcode>EINVAL</errorcode></term>
+ <listitem>
+ <para>The &v4l2-dv-enum-preset; <structfield>index</structfield>
+is out of bounds.</para>
+ </listitem>
+ </varlistentry>
+ </variablelist>
+ </refsect1>
+</refentry>
+
+<!--
+Local Variables:
+mode: sgml
+sgml-parent-document: "v4l2.sgml"
+indent-tabs-mode: nil
+End:
+-->