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-rw-r--r--Documentation/DocBook/media/v4l/controls.xml87
1 files changed, 86 insertions, 1 deletions
diff --git a/Documentation/DocBook/media/v4l/controls.xml b/Documentation/DocBook/media/v4l/controls.xml
index 9e8f85498678..8d7a77928d49 100644
--- a/Documentation/DocBook/media/v4l/controls.xml
+++ b/Documentation/DocBook/media/v4l/controls.xml
@@ -2300,6 +2300,12 @@ Possible values are:</entry>
2300 </row> 2300 </row>
2301 <row><entry></entry></row> 2301 <row><entry></entry></row>
2302 <row> 2302 <row>
2303 <entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_REPEAT_SEQ_HEADER</constant>&nbsp;</entry>
2304 <entry>boolean</entry>
2305 </row><row><entry spanname="descr">Repeat the video sequence headers. Repeating these
2306headers makes random access to the video stream easier. Applicable to the MPEG1, 2 and 4 encoder.</entry>
2307 </row>
2308 <row>
2303 <entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_DECODER_MPEG4_DEBLOCK_FILTER</constant>&nbsp;</entry> 2309 <entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_DECODER_MPEG4_DEBLOCK_FILTER</constant>&nbsp;</entry>
2304 <entry>boolean</entry> 2310 <entry>boolean</entry>
2305 </row><row><entry spanname="descr">Enabled the deblocking post processing filter for MPEG4 decoder. 2311 </row><row><entry spanname="descr">Enabled the deblocking post processing filter for MPEG4 decoder.
@@ -3136,6 +3142,13 @@ giving priority to the center of the metered area.</entry>
3136 <entry><constant>V4L2_EXPOSURE_METERING_SPOT</constant>&nbsp;</entry> 3142 <entry><constant>V4L2_EXPOSURE_METERING_SPOT</constant>&nbsp;</entry>
3137 <entry>Measure only very small area at the center of the frame.</entry> 3143 <entry>Measure only very small area at the center of the frame.</entry>
3138 </row> 3144 </row>
3145 <row>
3146 <entry><constant>V4L2_EXPOSURE_METERING_MATRIX</constant>&nbsp;</entry>
3147 <entry>A multi-zone metering. The light intensity is measured
3148in several points of the frame and the the results are combined. The
3149algorithm of the zones selection and their significance in calculating the
3150final value is device dependant.</entry>
3151 </row>
3139 </tbody> 3152 </tbody>
3140 </entrytbl> 3153 </entrytbl>
3141 </row> 3154 </row>
@@ -3848,7 +3861,7 @@ in Hz. The range and step are driver-specific.</entry>
3848 </row> 3861 </row>
3849 <row> 3862 <row>
3850 <entry spanname="id"><constant>V4L2_CID_TUNE_PREEMPHASIS</constant>&nbsp;</entry> 3863 <entry spanname="id"><constant>V4L2_CID_TUNE_PREEMPHASIS</constant>&nbsp;</entry>
3851 <entry>integer</entry> 3864 <entry>enum v4l2_preemphasis</entry>
3852 </row> 3865 </row>
3853 <row id="v4l2-preemphasis"><entry spanname="descr">Configures the pre-emphasis value for broadcasting. 3866 <row id="v4l2-preemphasis"><entry spanname="descr">Configures the pre-emphasis value for broadcasting.
3854A pre-emphasis filter is applied to the broadcast to accentuate the high audio frequencies. 3867A pre-emphasis filter is applied to the broadcast to accentuate the high audio frequencies.
@@ -4687,4 +4700,76 @@ interface and may change in the future.</para>
4687 </table> 4700 </table>
4688 4701
4689 </section> 4702 </section>
4703
4704 <section id="fm-rx-controls">
4705 <title>FM Receiver Control Reference</title>
4706
4707 <para>The FM Receiver (FM_RX) class includes controls for common features of
4708 FM Reception capable devices.</para>
4709
4710 <table pgwide="1" frame="none" id="fm-rx-control-id">
4711 <title>FM_RX Control IDs</title>
4712
4713 <tgroup cols="4">
4714 <colspec colname="c1" colwidth="1*" />
4715 <colspec colname="c2" colwidth="6*" />
4716 <colspec colname="c3" colwidth="2*" />
4717 <colspec colname="c4" colwidth="6*" />
4718 <spanspec namest="c1" nameend="c2" spanname="id" />
4719 <spanspec namest="c2" nameend="c4" spanname="descr" />
4720 <thead>
4721 <row>
4722 <entry spanname="id" align="left">ID</entry>
4723 <entry align="left">Type</entry>
4724 </row><row rowsep="1"><entry spanname="descr" align="left">Description</entry>
4725 </row>
4726 </thead>
4727 <tbody valign="top">
4728 <row><entry></entry></row>
4729 <row>
4730 <entry spanname="id"><constant>V4L2_CID_FM_RX_CLASS</constant>&nbsp;</entry>
4731 <entry>class</entry>
4732 </row><row><entry spanname="descr">The FM_RX class
4733descriptor. Calling &VIDIOC-QUERYCTRL; for this control will return a
4734description of this control class.</entry>
4735 </row>
4736 <row>
4737 <entry spanname="id"><constant>V4L2_CID_RDS_RECEPTION</constant>&nbsp;</entry>
4738 <entry>boolean</entry>
4739 </row><row><entry spanname="descr">Enables/disables RDS
4740 reception by the radio tuner</entry>
4741 </row>
4742 <row>
4743 <entry spanname="id"><constant>V4L2_CID_TUNE_DEEMPHASIS</constant>&nbsp;</entry>
4744 <entry>enum v4l2_deemphasis</entry>
4745 </row>
4746 <row id="v4l2-deemphasis"><entry spanname="descr">Configures the de-emphasis value for reception.
4747A de-emphasis filter is applied to the broadcast to accentuate the high audio frequencies.
4748Depending on the region, a time constant of either 50 or 75 useconds is used. The enum&nbsp;v4l2_deemphasis
4749defines possible values for de-emphasis. Here they are:</entry>
4750 </row><row>
4751 <entrytbl spanname="descr" cols="2">
4752 <tbody valign="top">
4753 <row>
4754 <entry><constant>V4L2_DEEMPHASIS_DISABLED</constant>&nbsp;</entry>
4755 <entry>No de-emphasis is applied.</entry>
4756 </row>
4757 <row>
4758 <entry><constant>V4L2_DEEMPHASIS_50_uS</constant>&nbsp;</entry>
4759 <entry>A de-emphasis of 50 uS is used.</entry>
4760 </row>
4761 <row>
4762 <entry><constant>V4L2_DEEMPHASIS_75_uS</constant>&nbsp;</entry>
4763 <entry>A de-emphasis of 75 uS is used.</entry>
4764 </row>
4765 </tbody>
4766 </entrytbl>
4767
4768 </row>
4769 <row><entry></entry></row>
4770 </tbody>
4771 </tgroup>
4772 </table>
4773
4774 </section>
4690</section> 4775</section>