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[98.210.181.167]) by smtp.googlemail.com with ESMTPSA id o12-v6sm17033117pgv.7.2018.10.16.17.00.36 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 16 Oct 2018 17:00:36 -0700 (PDT) From: Steve Longerbeam To: linux-media@vger.kernel.org Cc: Steve Longerbeam , Mauro Carvalho Chehab , linux-kernel@vger.kernel.org (open list) Subject: [PATCH v5 01/12] media: videodev2.h: Add more field helper macros Date: Tue, 16 Oct 2018 17:00:16 -0700 Message-Id: <20181017000027.23696-2-slongerbeam@gmail.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20181017000027.23696-1-slongerbeam@gmail.com> References: <20181017000027.23696-1-slongerbeam@gmail.com> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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 --- 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 29729d580452..f7f031736d91 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