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Commit ed679b8a authored by Hans Verkuil's avatar Hans Verkuil Committed by Mauro Carvalho Chehab
Browse files

[media] DocBook media: document the new V4L2_CID_DV_RX/TX_IT_CONTENT_TYPE controls 



Document these new controls.

Signed-off-by: default avatarHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@osg.samsung.com>
parent 45cc29af

Documentation/DocBook/media/v4l/controls.xml

+50 −0
Original line number Diff line number Diff line
@@ -5069,6 +5069,46 @@ interface and may change in the future.</para> 
	    This control is applicable to VGA, DVI-A/D, HDMI and DisplayPort connectors.

	    </entry>

	  </row>

	  <row>

	    <entry spanname="id"><constant>V4L2_CID_DV_TX_IT_CONTENT_TYPE</constant></entry>

	    <entry id="v4l2-dv-content-type">enum v4l2_dv_it_content_type</entry>

	  </row>

	  <row><entry spanname="descr">Configures the IT Content Type

	    of the transmitted video. This information is sent over HDMI and DisplayPort connectors

	    as part of the AVI InfoFrame. The term 'IT Content' is used for content that originates

	    from a computer as opposed to content from a TV broadcast or an analog source. The

	    enum&nbsp;v4l2_dv_it_content_type defines the possible content types:</entry>

	  </row>

	  <row>

	    <entrytbl spanname="descr" cols="2">

	      <tbody valign="top">

	        <row>

	          <entry><constant>V4L2_DV_IT_CONTENT_TYPE_GRAPHICS</constant>&nbsp;</entry>

		  <entry>Graphics content. Pixel data should be passed unfiltered and without

		  analog reconstruction.</entry>

		</row>

	        <row>

	          <entry><constant>V4L2_DV_IT_CONTENT_TYPE_PHOTO</constant>&nbsp;</entry>

		  <entry>Photo content. The content is derived from digital still pictures.

		  The content should be passed through with minimal scaling and picture

		  enhancements.</entry>

		</row>

	        <row>

	          <entry><constant>V4L2_DV_IT_CONTENT_TYPE_CINEMA</constant>&nbsp;</entry>

		  <entry>Cinema content.</entry>

		</row>

	        <row>

	          <entry><constant>V4L2_DV_IT_CONTENT_TYPE_GAME</constant>&nbsp;</entry>

		  <entry>Game content. Audio and video latency should be minimized.</entry>

		</row>

	        <row>

	          <entry><constant>V4L2_DV_IT_CONTENT_TYPE_NO_ITC</constant>&nbsp;</entry>

		  <entry>No IT Content information is available and the ITC bit in the AVI

		  InfoFrame is set to 0.</entry>

		</row>

	      </tbody>

	    </entrytbl>

	  </row>

	  <row>

	    <entry spanname="id"><constant>V4L2_CID_DV_RX_POWER_PRESENT</constant></entry>

	    <entry>bitmask</entry>
@@ -5098,6 +5138,16 @@ interface and may change in the future.</para> 
	    This control is applicable to VGA, DVI-A/D, HDMI and DisplayPort connectors.

	    </entry>

	  </row>

	  <row>

	    <entry spanname="id"><constant>V4L2_CID_DV_RX_IT_CONTENT_TYPE</constant></entry>

	    <entry>enum v4l2_dv_it_content_type</entry>

	  </row>

	  <row><entry spanname="descr">Reads the IT Content Type

	    of the received video. This information is sent over HDMI and DisplayPort connectors

	    as part of the AVI InfoFrame. The term 'IT Content' is used for content that originates

	    from a computer as opposed to content from a TV broadcast or an analog source. See

	    <constant>V4L2_CID_DV_TX_IT_CONTENT_TYPE</constant> for the available content types.</entry>

	  </row>

	  <row><entry></entry></row>

	</tbody>

      </tgroup>