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From: Steve Longerbeam <slongerbeam@gmail.com>
To: linux-media@vger.kernel.org
Cc: Steve Longerbeam <slongerbeam@gmail.com>,
	Mauro Carvalho Chehab <mchehab@kernel.org>,
	linux-kernel@vger.kernel.org (open list)
Subject: [PATCH v6 01/12] media: videodev2.h: Add more field helper macros
Date: Tue,  8 Jan 2019 16:15:40 -0800	[thread overview]
Message-ID: <20190109001551.16113-2-slongerbeam@gmail.com> (raw)
In-Reply-To: <20190109001551.16113-1-slongerbeam@gmail.com>

Adds two helper macros:

V4L2_FIELD_IS_SEQUENTIAL: returns true if the given field type is
'sequential', that is a full frame is transmitted, or exists in
memory, as all top field lines followed by all bottom field lines,
or vice-versa.

V4L2_FIELD_IS_INTERLACED: returns true if the given field type is
'interlaced', that is a full frame is transmitted, or exists in
memory, as top field lines interlaced with bottom field lines.

Signed-off-by: Steve Longerbeam <slongerbeam@gmail.com>
---
Changes since v3:
- none
Changes since v2:
- none
Changes since v1:
- add the complement macro V4L2_FIELD_IS_INTERLACED
- remove V4L2_FIELD_ALTERNATE from V4L2_FIELD_IS_SEQUENTIAL macro.
- moved new macros past end of existing V4L2_FIELD_HAS_* macros.
---
 include/uapi/linux/videodev2.h | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h
index d6eed479c3a6..bca07d35ea09 100644
--- a/include/uapi/linux/videodev2.h
+++ b/include/uapi/linux/videodev2.h
@@ -130,6 +130,13 @@ enum v4l2_field {
 	((field) == V4L2_FIELD_BOTTOM ||\
 	 (field) == V4L2_FIELD_TOP ||\
 	 (field) == V4L2_FIELD_ALTERNATE)
+#define V4L2_FIELD_IS_INTERLACED(field) \
+	((field) == V4L2_FIELD_INTERLACED ||\
+	 (field) == V4L2_FIELD_INTERLACED_TB ||\
+	 (field) == V4L2_FIELD_INTERLACED_BT)
+#define V4L2_FIELD_IS_SEQUENTIAL(field) \
+	((field) == V4L2_FIELD_SEQ_TB ||\
+	 (field) == V4L2_FIELD_SEQ_BT)
 
 enum v4l2_buf_type {
 	V4L2_BUF_TYPE_VIDEO_CAPTURE        = 1,
-- 
2.17.1


  reply	other threads:[~2019-01-09  0:17 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-01-09  0:15 [PATCH v6 00/12] imx-media: Fixes for interlaced capture Steve Longerbeam
2019-01-09  0:15 ` Steve Longerbeam [this message]
2019-01-09  0:15 ` [PATCH v6 02/12] gpu: ipu-csi: Swap fields according to input/output field types Steve Longerbeam
2019-01-09 11:11   ` Philipp Zabel
2019-01-09  0:15 ` [PATCH v6 03/12] gpu: ipu-v3: Add planar support to interlaced scan Steve Longerbeam
2019-01-09  0:15 ` [PATCH v6 04/12] media: imx: Fix field negotiation Steve Longerbeam
2019-01-09  0:15 ` [PATCH v6 05/12] media: imx-csi: Input connections to CSI should be optional Steve Longerbeam
2019-01-09 11:13   ` Philipp Zabel
2019-01-09 17:26     ` Steve Longerbeam
2019-01-09  0:15 ` [PATCH v6 06/12] media: imx-csi: Double crop height for alternate fields at sink Steve Longerbeam
2019-01-09  0:15 ` [PATCH v6 07/12] media: imx: interweave and odd-chroma-row skip are incompatible Steve Longerbeam
2019-01-09  0:15 ` [PATCH v6 08/12] media: imx-csi: Allow skipping odd chroma rows for YVU420 Steve Longerbeam
2019-01-09  0:15 ` [PATCH v6 09/12] media: imx: vdic: rely on VDIC for correct field order Steve Longerbeam
2019-01-09  0:15 ` [PATCH v6 10/12] media: imx-csi: Move crop/compose reset after filling default mbus fields Steve Longerbeam
2019-01-09  0:15 ` [PATCH v6 11/12] media: imx: Allow interweave with top/bottom lines swapped Steve Longerbeam
2019-01-09  0:15 ` [PATCH v6 12/12] media: imx.rst: Update doc to reflect fixes to interlaced capture Steve Longerbeam
2019-01-09 11:16   ` Philipp Zabel

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