From: Ming Qian <ming.qian@nxp.com>
To: mchehab@kernel.org, shawnguo@kernel.org, robh+dt@kernel.org,
s.hauer@pengutronix.de
Cc: hverkuil-cisco@xs4all.nl, kernel@pengutronix.de,
festevam@gmail.com, linux-imx@nxp.com, aisheng.dong@nxp.com,
linux-media@vger.kernel.org, linux-kernel@vger.kernel.org,
devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org
Subject: [PATCH 2/5] media: v4l: add some definition of v4l2 colorspace/xfer_func/ycbcr_encoding
Date: Mon, 31 May 2021 10:51:10 +0800 [thread overview]
Message-ID: <b53c651305e2b1351230f73d6abad03b9de49e52.1622429026.git.ming.qian@nxp.com> (raw)
In-Reply-To: <cover.1622429025.git.ming.qian@nxp.com>
Some definition of colorspace/xfer_func/ycbcr_encoding
are defined in ISO, but missed in V4L2,
so add some definition according VPU driver's requirement
Signed-off-by: Ming Qian <ming.qian@nxp.com>
Reviewed-by: Shijie Qin <shijie.qin@nxp.com>
---
include/uapi/linux/videodev2.h | 30 ++++++++++++++++++++++++++++++
1 file changed, 30 insertions(+)
diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h
index 534eaa4d39bc..545f2c329bc9 100644
--- a/include/uapi/linux/videodev2.h
+++ b/include/uapi/linux/videodev2.h
@@ -247,6 +247,12 @@ enum v4l2_colorspace {
/* DCI-P3 colorspace, used by cinema projectors */
V4L2_COLORSPACE_DCI_P3 = 12,
+
+ /* Generic film (colour filters using Illuminant C) */
+ V4L2_COLORSPACE_GENERIC_FILM = 13,
+
+ /* SMPTE ST 428-1 */
+ V4L2_COLORSPACE_ST428 = 14,
};
/*
@@ -276,6 +282,20 @@ enum v4l2_xfer_func {
* V4L2_COLORSPACE_RAW: V4L2_XFER_FUNC_NONE
*
* V4L2_COLORSPACE_DCI_P3: V4L2_XFER_FUNC_DCI_P3
+ *
+ * V4L2_XFER_FUNC_LINEAR: Linear transfer characteristics
+ *
+ * V4L2_XFER_FUNC_GAMMA22: Assumed display gamma 2.2
+ *
+ * V4L2_XFER_FUNC_GAMMA28: Assumed display gamma 2.8
+ *
+ * V4L2_XFER_FUNC_HLG: STD-B67, Rec. ITU-R BT.2100-2 hybrid-log-gamma
+ *
+ * V4L2_XFER_FUNC_XVYCC: IEC 61966-2-4
+ *
+ * V4L2_XFER_FUNC_BT1361: Rec. ITU-R BT.1361-0 extended colour gamut
+ *
+ * V4L2_XFER_FUNC_ST428: SMPTE ST 428-1
*/
V4L2_XFER_FUNC_DEFAULT = 0,
V4L2_XFER_FUNC_709 = 1,
@@ -285,6 +305,13 @@ enum v4l2_xfer_func {
V4L2_XFER_FUNC_NONE = 5,
V4L2_XFER_FUNC_DCI_P3 = 6,
V4L2_XFER_FUNC_SMPTE2084 = 7,
+ V4L2_XFER_FUNC_LINEAR = 8,
+ V4L2_XFER_FUNC_GAMMA22 = 9,
+ V4L2_XFER_FUNC_GAMMA28 = 10,
+ V4L2_XFER_FUNC_HLG = 11,
+ V4L2_XFER_FUNC_XVYCC = 12,
+ V4L2_XFER_FUNC_BT1361 = 13,
+ V4L2_XFER_FUNC_ST428 = 14,
};
/*
@@ -345,6 +372,9 @@ enum v4l2_ycbcr_encoding {
/* SMPTE 240M -- Obsolete HDTV */
V4L2_YCBCR_ENC_SMPTE240M = 8,
+
+ /* KR=0.30, KB=0.11 or equivalent */
+ V4L2_YCBCR_ENC_BT470_6M = 9,
};
/*
--
2.31.1
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next prev parent reply other threads:[~2021-05-31 2:54 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-31 2:51 [PATCH 0/5] imx8q video decoder/encoder driver Ming Qian
2021-05-31 2:51 ` [PATCH 1/5] dt-bindings: media: imx8q: add imx video codec bindings Ming Qian
2021-05-31 14:43 ` Nicolas Dufresne
2021-06-01 1:48 ` [EXT] " Ming Qian
2021-06-01 13:32 ` Rob Herring
2021-06-02 8:09 ` [EXT] " Ming Qian
2021-05-31 2:51 ` Ming Qian [this message]
2021-05-31 2:51 ` [PATCH 4/5] ARM64: dts: freescale: imx8q: add imx vpu codec entries Ming Qian
2021-05-31 2:51 ` [PATCH 5/5] firmware: imx: scu-pd: imx8q: add vpu mu resources Ming Qian
2021-07-20 14:48 ` [PATCH 0/5] imx8q video decoder/encoder driver Nicolas Dufresne
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