diff options
Diffstat (limited to 'Documentation/DocBook/media/v4l/controls.xml')
-rw-r--r-- | Documentation/DocBook/media/v4l/controls.xml | 87 |
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> </entry> | ||
2304 | <entry>boolean</entry> | ||
2305 | </row><row><entry spanname="descr">Repeat the video sequence headers. Repeating these | ||
2306 | headers 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> </entry> | 2309 | <entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_DECODER_MPEG4_DEBLOCK_FILTER</constant> </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> </entry> | 3142 | <entry><constant>V4L2_EXPOSURE_METERING_SPOT</constant> </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> </entry> | ||
3147 | <entry>A multi-zone metering. The light intensity is measured | ||
3148 | in several points of the frame and the the results are combined. The | ||
3149 | algorithm of the zones selection and their significance in calculating the | ||
3150 | final 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> </entry> | 3863 | <entry spanname="id"><constant>V4L2_CID_TUNE_PREEMPHASIS</constant> </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. |
3854 | A pre-emphasis filter is applied to the broadcast to accentuate the high audio frequencies. | 3867 | A 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> </entry> | ||
4731 | <entry>class</entry> | ||
4732 | </row><row><entry spanname="descr">The FM_RX class | ||
4733 | descriptor. Calling &VIDIOC-QUERYCTRL; for this control will return a | ||
4734 | description of this control class.</entry> | ||
4735 | </row> | ||
4736 | <row> | ||
4737 | <entry spanname="id"><constant>V4L2_CID_RDS_RECEPTION</constant> </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> </entry> | ||
4744 | <entry>enum v4l2_deemphasis</entry> | ||
4745 | </row> | ||
4746 | <row id="v4l2-deemphasis"><entry spanname="descr">Configures the de-emphasis value for reception. | ||
4747 | A de-emphasis filter is applied to the broadcast to accentuate the high audio frequencies. | ||
4748 | Depending on the region, a time constant of either 50 or 75 useconds is used. The enum v4l2_deemphasis | ||
4749 | defines 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> </entry> | ||
4755 | <entry>No de-emphasis is applied.</entry> | ||
4756 | </row> | ||
4757 | <row> | ||
4758 | <entry><constant>V4L2_DEEMPHASIS_50_uS</constant> </entry> | ||
4759 | <entry>A de-emphasis of 50 uS is used.</entry> | ||
4760 | </row> | ||
4761 | <row> | ||
4762 | <entry><constant>V4L2_DEEMPHASIS_75_uS</constant> </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> |