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[media] v4l2: Add settings for Horizontal and Vertical MV Search Range

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Adding V4L2 controls for horizontal and vertical search range in pixels
for motion estimation module in video encoder.

Signed-off-by: Swami Nathan <swaminath.p@samsung.com>
Signed-off-by: Amit Grover <amit.grover@samsung.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
This commit is contained in:
Amit Grover 2014-02-04 06:59:58 -03:00 committed by Mauro Carvalho Chehab
parent 60aa4c6fa5
commit bf0bedd371
3 changed files with 28 additions and 0 deletions
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20
Documentation/DocBook/media/v4l/controls.xml
View File

@ -2256,6 +2256,26 @@ Applicable to the MPEG1, MPEG2, MPEG4 encoders.</entry>
<entry>integer</entry>
</row><row><entry spanname="descr">Sets the initial delay in milliseconds for
VBV buffer control.</entry>
</row>
<row><entry></entry></row>
<row id=""v4l2-mpeg-video-hor-search-range">
<entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_MV_H_SEARCH_RANGE</constant>&nbsp;</entry>
<entry>integer</entry>
</row>
<row><entry spanname="descr">Horizontal search range defines maximum horizontal search area in pixels
to search and match for the present Macroblock (MB) in the reference picture. This V4L2 control macro is used to set
horizontal search range for motion estimation module in video encoder.</entry>
</row>
<row><entry></entry></row>
<row id="v4l2-mpeg-video-vert-search-range">
<entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_MV_V_SEARCH_RANGE</constant>&nbsp;</entry>
<entry>integer</entry>
</row>
<row><entry spanname="descr">Vertical search range defines maximum vertical search area in pixels
to search and match for the present Macroblock (MB) in the reference picture. This V4L2 control macro is used to set
vertical search range for motion estimation module in video encoder.</entry>
</row>
<row><entry></entry></row>

6
drivers/media/v4l2-core/v4l2-ctrls.c
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@ -735,6 +735,8 @@ const char *v4l2_ctrl_get_name(u32 id)
case V4L2_CID_MPEG_VIDEO_DEC_PTS: return "Video Decoder PTS";
case V4L2_CID_MPEG_VIDEO_DEC_FRAME: return "Video Decoder Frame Count";
case V4L2_CID_MPEG_VIDEO_VBV_DELAY: return "Initial Delay for VBV Control";
case V4L2_CID_MPEG_VIDEO_MV_H_SEARCH_RANGE: return "Horizontal MV Search Range";
case V4L2_CID_MPEG_VIDEO_MV_V_SEARCH_RANGE: return "Vertical MV Search Range";
case V4L2_CID_MPEG_VIDEO_REPEAT_SEQ_HEADER: return "Repeat Sequence Header";
/* VPX controls */
@ -910,6 +912,10 @@ void v4l2_ctrl_fill(u32 id, const char **name, enum v4l2_ctrl_type *type,
*min = 0;
*max = *step = 1;
break;
case V4L2_CID_MPEG_VIDEO_MV_H_SEARCH_RANGE:
case V4L2_CID_MPEG_VIDEO_MV_V_SEARCH_RANGE:
*type = V4L2_CTRL_TYPE_INTEGER;
break;
case V4L2_CID_PAN_RESET:
case V4L2_CID_TILT_RESET:
case V4L2_CID_FLASH_STROBE:

2
include/uapi/linux/v4l2-controls.h
View File

@ -376,6 +376,8 @@ enum v4l2_mpeg_video_multi_slice_mode {
#define V4L2_CID_MPEG_VIDEO_DEC_FRAME (V4L2_CID_MPEG_BASE+224)
#define V4L2_CID_MPEG_VIDEO_VBV_DELAY (V4L2_CID_MPEG_BASE+225)
#define V4L2_CID_MPEG_VIDEO_REPEAT_SEQ_HEADER (V4L2_CID_MPEG_BASE+226)
#define V4L2_CID_MPEG_VIDEO_MV_H_SEARCH_RANGE (V4L2_CID_MPEG_BASE+227)
#define V4L2_CID_MPEG_VIDEO_MV_V_SEARCH_RANGE (V4L2_CID_MPEG_BASE+228)
#define V4L2_CID_MPEG_VIDEO_H263_I_FRAME_QP (V4L2_CID_MPEG_BASE+300)
#define V4L2_CID_MPEG_VIDEO_H263_P_FRAME_QP (V4L2_CID_MPEG_BASE+301)