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Message-ID: <CA+V-a8s03B4cveb4AJjy00s=HacXVdr-Bad4KdesR=LPUc9B_A@mail.gmail.com>
Date: Wed, 29 Aug 2012 20:21:15 +0530
From: Prabhakar Lad <prabhakar.csengg@...il.com>
To: Sakari Ailus <sakari.ailus@....fi>
Cc: Prabhakar Lad <prabhakar.lad@...com>,
dlos <davinci-linux-open-source@...ux.davincidsp.com>,
linux-kernel@...r.kernel.org,
Mauro Carvalho Chehab <mchehab@...radead.org>,
Hans de Goede <hdegoede@...hat.com>,
Kyungmin Park <kyungmin.park@...sung.com>,
Hans Verkuil <hans.verkuil@...co.com>,
Sylwester Nawrocki <s.nawrocki@...sung.com>,
LMML <linux-media@...r.kernel.org>
Subject: Re: [PATCH] media: v4l2-ctrls: add control for dpcm predictor
Hi Sakari,
Thanks for the review.
On Wed, Aug 29, 2012 at 7:51 PM, Sakari Ailus <sakari.ailus@....fi> wrote:
> Hi Prabhakar,
>
> Thanks for the patch.
>
> On Wed, Aug 29, 2012 at 06:01:07PM +0530, Prabhakar Lad wrote:
>> From: Lad, Prabhakar <prabhakar.lad@...com>
>>
>> add V4L2_CID_DPCM_PREDICTOR control of type menu, which
>> determines the dpcm predictor. The predictor can be either
>> simple or advanced.
>>
>> Signed-off-by: Lad, Prabhakar <prabhakar.lad@...com>
>> Signed-off-by: Manjunath Hadli <manjunath.hadli@...com>
>> Cc: Sakari Ailus <sakari.ailus@....fi>
>> Cc: Hans Verkuil <hans.verkuil@...co.com>
>> Cc: Laurent Pinchart <laurent.pinchart@...asonboard.com>
>> Cc: Mauro Carvalho Chehab <mchehab@...radead.org>
>> Cc: Sylwester Nawrocki <s.nawrocki@...sung.com>
>> Cc: Hans de Goede <hdegoede@...hat.com>
>> Cc: Kyungmin Park <kyungmin.park@...sung.com>
>> ---
>> This patches has one checkpatch warning for line over
>> 80 characters altough it can be avoided I have kept it
>> for consistency.
>>
>> drivers/media/v4l2-core/v4l2-ctrls.c | 9 +++++++++
>> include/linux/videodev2.h | 5 +++++
>> 2 files changed, 14 insertions(+), 0 deletions(-)
>>
>> diff --git a/drivers/media/v4l2-core/v4l2-ctrls.c b/drivers/media/v4l2-core/v4l2-ctrls.c
>> index b6a2ee7..2d7bc15 100644
>> --- a/drivers/media/v4l2-core/v4l2-ctrls.c
>> +++ b/drivers/media/v4l2-core/v4l2-ctrls.c
>> @@ -425,6 +425,11 @@ const char * const *v4l2_ctrl_get_menu(u32 id)
>> "Gray",
>> NULL,
>> };
>> + static const char * const dpcm_predictor[] = {
>> + "Simple Predictor",
>> + "Advanced Predictor",
>> + NULL,
>> + };
>>
>> switch (id) {
>> case V4L2_CID_MPEG_AUDIO_SAMPLING_FREQ:
>> @@ -502,6 +507,8 @@ const char * const *v4l2_ctrl_get_menu(u32 id)
>> return mpeg4_profile;
>> case V4L2_CID_JPEG_CHROMA_SUBSAMPLING:
>> return jpeg_chroma_subsampling;
>> + case V4L2_CID_DPCM_PREDICTOR:
>> + return dpcm_predictor;
>>
>> default:
>> return NULL;
>> @@ -732,6 +739,7 @@ const char *v4l2_ctrl_get_name(u32 id)
>> case V4L2_CID_IMAGE_PROC_CLASS: return "Image Processing Controls";
>> case V4L2_CID_LINK_FREQ: return "Link Frequency";
>> case V4L2_CID_PIXEL_RATE: return "Pixel Rate";
>> + case V4L2_CID_DPCM_PREDICTOR: return "DPCM Predictor";
>>
>> default:
>> return NULL;
>> @@ -832,6 +840,7 @@ void v4l2_ctrl_fill(u32 id, const char **name, enum v4l2_ctrl_type *type,
>> case V4L2_CID_ISO_SENSITIVITY_AUTO:
>> case V4L2_CID_EXPOSURE_METERING:
>> case V4L2_CID_SCENE_MODE:
>> + case V4L2_CID_DPCM_PREDICTOR:
>> *type = V4L2_CTRL_TYPE_MENU;
>> break;
>> case V4L2_CID_LINK_FREQ:
>> diff --git a/include/linux/videodev2.h b/include/linux/videodev2.h
>> index 6d6dfa7..4edb941 100644
>> --- a/include/linux/videodev2.h
>> +++ b/include/linux/videodev2.h
>> @@ -2000,6 +2000,11 @@ enum v4l2_jpeg_chroma_subsampling {
>>
>> #define V4L2_CID_LINK_FREQ (V4L2_CID_IMAGE_PROC_CLASS_BASE + 1)
>> #define V4L2_CID_PIXEL_RATE (V4L2_CID_IMAGE_PROC_CLASS_BASE + 2)
>> +#define V4L2_CID_DPCM_PREDICTOR (V4L2_CID_IMAGE_PROC_CLASS_BASE + 3)
>> +enum v4l2_dpcm_predictor {
>> + V4L2_DPCM_PREDICTOR_SIMPLE = 0,
>> + V4L2_DPCM_PREDICTOR_ADVANCE = 1,
>> +};
>
> s/ADVANCE/ADVANCED/ perhaps?
>
Ok I'll make it ADVANCED.
> To add to Sylwester's comment on the documentation, I think this control
> belongs to the image processing controls class.
>
I have added it as part of image processing control class itself
(#define V4L2_CID_DPCM_PREDICTOR (V4L2_CID_IMAGE_PROC_CLASS_BASE + 3)),
I'll include the same in documentation as well.
Thanks and Regards,
--Prabhakar Lad
> Kind regards,
>
> --
> Sakari Ailus
> e-mail: sakari.ailus@....fi XMPP: sailus@...iisi.org.uk
> _______________________________________________
> Davinci-linux-open-source mailing list
> Davinci-linux-open-source@...ux.davincidsp.com
> http://linux.davincidsp.com/mailman/listinfo/davinci-linux-open-source
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