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Date: Thu, 6 Feb 2014 13:43:26 +0530
From: Prabhakar Lad <prabhakar.csengg@...il.com>
To: Amit Grover <amit.grover@...sung.com>
Cc: linux-media <linux-media@...r.kernel.org>,
LDOC <linux-doc@...r.kernel.org>,
LKML <linux-kernel@...r.kernel.org>,
LAK <linux-arm-kernel@...ts.infradead.org>,
Kyungmin Park <kyungmin.park@...sung.com>,
Kamil Debski <k.debski@...sung.com>,
Sylwester Nawrocki <s.nawrocki@...sung.com>,
Hans Verkuil <hans.verkuil@...co.com>,
Hans Verkuil <hverkuil@...all.nl>,
swaminathan <swaminath.p@...sung.com>,
Jeongtae Park <jtp.park@...sung.com>, Rrob@...dley.net,
Andrey Smirnov <andrew.smirnov@...il.com>,
Anatol Pomozov <anatol.pomozov@...il.com>,
Jonathan McCrohan <jmccrohan@...il.com>,
Joe Perches <joe@...ches.com>,
Andy Walls <awalls@...metrocast.net>,
Arun Kumar <arun.kk@...sung.com>, austin.lobo@...sung.com
Subject: Re: [PATCH 1/2] [media] v4l2: Add settings for Horizontal and
Vertical MV Search Range
On Tue, Feb 4, 2014 at 3:29 PM, Amit Grover <amit.grover@...sung.com> wrote:
> 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@...sung.com>
> Signed-off-by: Amit Grover <amit.grover@...sung.com>
Acked-by: Lad, Prabhakar <prabhakar.csengg@...il.com>
Regards,
--Prabhakar Lad
> ---
> Documentation/DocBook/media/v4l/controls.xml | 20 ++++++++++++++++++++
> drivers/media/v4l2-core/v4l2-ctrls.c | 6 ++++++
> include/uapi/linux/v4l2-controls.h | 2 ++
> 3 files changed, 28 insertions(+)
>
> diff --git a/Documentation/DocBook/media/v4l/controls.xml b/Documentation/DocBook/media/v4l/controls.xml
> index a5a3188..0e1770c 100644
> --- a/Documentation/DocBook/media/v4l/controls.xml
> +++ b/Documentation/DocBook/media/v4l/controls.xml
> @@ -2258,6 +2258,26 @@ Applicable to the MPEG1, MPEG2, MPEG4 encoders.</entry>
> 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> </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> </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>
> <row>
> <entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_H264_CPB_SIZE</constant> </entry>
> diff --git a/drivers/media/v4l2-core/v4l2-ctrls.c b/drivers/media/v4l2-core/v4l2-ctrls.c
> index 6ff002b..e9e12c4 100644
> --- a/drivers/media/v4l2-core/v4l2-ctrls.c
> +++ b/drivers/media/v4l2-core/v4l2-ctrls.c
> @@ -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:
> diff --git a/include/uapi/linux/v4l2-controls.h b/include/uapi/linux/v4l2-controls.h
> index 2cbe605..cda6fa0 100644
> --- a/include/uapi/linux/v4l2-controls.h
> +++ b/include/uapi/linux/v4l2-controls.h
> @@ -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)
> --
> 1.7.9.5
>
--
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