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[media] V4L: Add camera wide dynamic range control
Add V4L2_CID_WIDE_DYNAMIC_RANGE camera class control for the camera wide dynamic range (WDR, HDR) feature. This control can be used to enable/disable wide dynamic range. It might get converted to a menu control in future if more options are needed. Signed-off-by: HeungJun Kim <riverful.kim@samsung.com> Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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3 changed files with 19 additions and 0 deletions
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@ -3092,6 +3092,21 @@ sky. It corresponds approximately to 9000...10000 K color temperature.
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</row>
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</row>
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<row><entry></entry></row>
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<row><entry></entry></row>
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<row id="v4l2-wide-dynamic-range">
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<entry spanname="id"><constant>V4L2_CID_WIDE_DYNAMIC_RANGE</constant></entry>
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<entry>boolean</entry>
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</row>
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<row>
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<entry spanname="descr">Enables or disables the camera's wide dynamic
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range feature. This feature allows to obtain clear images in situations where
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intensity of the illumination varies significantly throughout the scene, i.e.
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there are simultaneously very dark and very bright areas. It is most commonly
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realized in cameras by combining two subsequent frames with different exposure
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times. <footnote id="ctypeconv"><para> This control may be changed to a menu
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control in the future, if more options are required.</para></footnote></entry>
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</row>
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<row><entry></entry></row>
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</tbody>
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</tbody>
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</tgroup>
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</tgroup>
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</table>
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</table>
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@ -621,6 +621,7 @@ const char *v4l2_ctrl_get_name(u32 id)
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case V4L2_CID_IRIS_RELATIVE: return "Iris, Relative";
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case V4L2_CID_IRIS_RELATIVE: return "Iris, Relative";
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case V4L2_CID_AUTO_EXPOSURE_BIAS: return "Auto Exposure, Bias";
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case V4L2_CID_AUTO_EXPOSURE_BIAS: return "Auto Exposure, Bias";
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case V4L2_CID_AUTO_N_PRESET_WHITE_BALANCE: return "White Balance, Auto & Preset";
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case V4L2_CID_AUTO_N_PRESET_WHITE_BALANCE: return "White Balance, Auto & Preset";
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case V4L2_CID_WIDE_DYNAMIC_RANGE: return "Wide Dynamic Range";
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/* FM Radio Modulator control */
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/* FM Radio Modulator control */
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/* Keep the order of the 'case's the same as in videodev2.h! */
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/* Keep the order of the 'case's the same as in videodev2.h! */
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@ -723,6 +724,7 @@ void v4l2_ctrl_fill(u32 id, const char **name, enum v4l2_ctrl_type *type,
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case V4L2_CID_MPEG_VIDEO_H264_8X8_TRANSFORM:
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case V4L2_CID_MPEG_VIDEO_H264_8X8_TRANSFORM:
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case V4L2_CID_MPEG_VIDEO_H264_VUI_SAR_ENABLE:
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case V4L2_CID_MPEG_VIDEO_H264_VUI_SAR_ENABLE:
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case V4L2_CID_MPEG_VIDEO_MPEG4_QPEL:
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case V4L2_CID_MPEG_VIDEO_MPEG4_QPEL:
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case V4L2_CID_WIDE_DYNAMIC_RANGE:
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*type = V4L2_CTRL_TYPE_BOOLEAN;
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*type = V4L2_CTRL_TYPE_BOOLEAN;
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*min = 0;
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*min = 0;
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*max = *step = 1;
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*max = *step = 1;
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@ -1723,6 +1723,8 @@ enum v4l2_auto_n_preset_white_balance {
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V4L2_WHITE_BALANCE_SHADE = 9,
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V4L2_WHITE_BALANCE_SHADE = 9,
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};
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};
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#define V4L2_CID_WIDE_DYNAMIC_RANGE (V4L2_CID_CAMERA_CLASS_BASE+21)
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/* FM Modulator class control IDs */
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/* FM Modulator class control IDs */
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#define V4L2_CID_FM_TX_CLASS_BASE (V4L2_CTRL_CLASS_FM_TX | 0x900)
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#define V4L2_CID_FM_TX_CLASS_BASE (V4L2_CTRL_CLASS_FM_TX | 0x900)
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#define V4L2_CID_FM_TX_CLASS (V4L2_CTRL_CLASS_FM_TX | 1)
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#define V4L2_CID_FM_TX_CLASS (V4L2_CTRL_CLASS_FM_TX | 1)
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