From: Hans Verkuil <hverkuil@xs4all.nl>
To: Paul Kocialkowski <paul.kocialkowski@bootlin.com>,
linux-media@vger.kernel.org, devicetree@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>,
Rob Herring <robh+dt@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Maxime Ripard <maxime.ripard@bootlin.com>,
Chen-Yu Tsai <wens@csie.org>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
"David S . Miller" <davem@davemloft.net>,
Andrew Morton <akpm@linux-foundation.org>,
Linus Walleij <linus.walleij@linaro.org>,
Randy Dunlap <rdunlap@infradead.org>,
Hans Verkuil <hans.verkuil@cisco.com>,
Arnd Bergmann <arnd@arndb.de>,
Stanimir Varbanov <stanimir.varbanov@linaro.org>,
Sakari Ailus <sakari.ailus@linux.intel.com>,
Philipp Zabel <p.zabel@pengutronix.de>,
Ramesh Shanmugasundaram <ramesh.shanmugasundaram@bp.renesas.com>,
Yannick Fertre <yannick.fertre@st.com>,
Thomas Gleixner <tglx@linutronix.de>,
Hugues Fruchet <hugues.fruchet@st.com>,
Alexandre Courbot <gnurou@gmail.com>,
Florent Revest <florent.revest@free-electrons.com>,
Tomasz Figa <tfiga@chromium.org>,
Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>,
Smitha T Murthy <smitha.t@samsung.com>,
Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
Sylwester Nawrocki <s.nawrocki@samsung.com>,
Randy Li <ayaka@soulik.info>
Subject: Re: [PATCH v3 09/14] media: v4l: Add definition for Allwinner's MB32-tiled NV12 format
Date: Mon, 7 May 2018 15:50:29 +0200 [thread overview]
Message-ID: <8b9aa08f-d514-5680-3d10-91e1a72c1e82@xs4all.nl> (raw)
In-Reply-To: <20180507124500.20434-10-paul.kocialkowski@bootlin.com>
On 07/05/18 14:44, Paul Kocialkowski wrote:
> This introduces support for Allwinner's MB32-tiled NV12 format, where
> each plane is divided into macroblocks of 32x32 pixels. Hence, the size
> of each plane has to be aligned to 32 bytes. The pixels inside each
> macroblock are coded as they would be if the macroblock was a single
> plane, line after line.
>
> The MB32-tiled NV12 format is used by the video engine on Allwinner
> platforms: it is the default format for decoded frames (and the only one
> available in the oldest supported platforms).
>
> Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
> ---
> include/uapi/linux/videodev2.h | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h
> index d8f9b59d90d7..242a6bfa1440 100644
> --- a/include/uapi/linux/videodev2.h
> +++ b/include/uapi/linux/videodev2.h
> @@ -670,6 +670,7 @@ struct v4l2_pix_format {
> #define V4L2_PIX_FMT_Z16 v4l2_fourcc('Z', '1', '6', ' ') /* Depth data 16-bit */
> #define V4L2_PIX_FMT_MT21C v4l2_fourcc('M', 'T', '2', '1') /* Mediatek compressed block mode */
> #define V4L2_PIX_FMT_INZI v4l2_fourcc('I', 'N', 'Z', 'I') /* Intel Planar Greyscale 10-bit and Depth 16-bit */
> +#define V4L2_PIX_FMT_MB32_NV12 v4l2_fourcc('M', 'N', '1', '2') /* Allwinner NV12 in 32x32 macroblocks */
Must be documented in the spec as well.
Regards,
Hans
>
> /* 10bit raw bayer packed, 32 bytes for every 25 pixels, last LSB 6 bits unused */
> #define V4L2_PIX_FMT_IPU3_SBGGR10 v4l2_fourcc('i', 'p', '3', 'b') /* IPU3 packed 10-bit BGGR bayer */
>
next prev parent reply other threads:[~2018-05-07 13:50 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-05-07 12:44 [PATCH v3 00/14] Sunxi-Cedrus driver for the Allwinner Video Engine, using media requests Paul Kocialkowski
2018-05-07 12:44 ` [PATCH v3 01/14] drivers: soc: sunxi: Add support for the C1 SRAM region Paul Kocialkowski
2018-05-07 12:44 ` [PATCH v3 02/14] drivers: soc: sunxi: Add dedicated compatibles for the A13, A20 and A33 Paul Kocialkowski
2018-05-11 5:05 ` Chen-Yu Tsai
2018-05-11 10:20 ` Maxime Ripard
2018-06-14 13:02 ` Paul Kocialkowski
2018-05-07 12:44 ` [PATCH v3 03/14] ARM: dts: sun5i: Use dedicated SRAM controller compatible Paul Kocialkowski
2018-05-07 12:44 ` [PATCH v3 04/14] ARM: dts: sun7i-a20: " Paul Kocialkowski
2018-05-07 12:44 ` [PATCH v3 05/14] ARM: sun5i: Add support for the C1 SRAM region with the SRAM controller Paul Kocialkowski
2018-05-07 12:44 ` [PATCH v3 06/14] ARM: sun7i-a20: " Paul Kocialkowski
2018-05-07 12:44 ` [PATCH v3 07/14] ARM: sun8i-a33: Add SRAM controller node and C1 SRAM region Paul Kocialkowski
2018-05-07 12:44 ` [PATCH v3 08/14] media: v4l: Add definitions for MPEG2 frame format and header metadata Paul Kocialkowski
2018-05-07 13:49 ` Hans Verkuil
2018-05-07 13:52 ` Paul Kocialkowski
2018-05-17 4:00 ` kbuild test robot
2018-05-07 12:44 ` [PATCH v3 09/14] media: v4l: Add definition for Allwinner's MB32-tiled NV12 format Paul Kocialkowski
2018-05-07 13:50 ` Hans Verkuil [this message]
2018-05-07 12:44 ` [PATCH v3 10/14] dt-bindings: media: Document bindings for the Sunxi-Cedrus VPU driver Paul Kocialkowski
2018-05-07 14:18 ` Rob Herring
2018-05-07 12:44 ` [PATCH v3 11/14] media: platform: Add Sunxi-Cedrus VPU decoder driver Paul Kocialkowski
2018-05-07 14:02 ` Hans Verkuil
2018-06-14 15:47 ` Paul Kocialkowski
2018-05-07 15:42 ` Maxime Ripard
2018-06-14 15:39 ` Paul Kocialkowski
2018-05-07 18:03 ` kbuild test robot
2018-05-07 12:44 ` [PATCH v3 12/14] ARM: dts: sun5i: Add Video Engine and reserved memory nodes Paul Kocialkowski
2018-05-07 12:44 ` [PATCH v3 13/14] ARM: dts: sun7i-a20: " Paul Kocialkowski
2018-05-07 12:45 ` [PATCH v3 14/14] ARM: dts: sun8i-a33: " Paul Kocialkowski
2018-05-07 14:50 ` [PATCH v3 00/14] Sunxi-Cedrus driver for the Allwinner Video Engine, using media requests Paul Kocialkowski
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