From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mail-wr1-f67.google.com ([209.85.221.67]:44685 "EHLO mail-wr1-f67.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727607AbeJEBsr (ORCPT ); Thu, 4 Oct 2018 21:48:47 -0400 From: Steve Longerbeam To: linux-media@vger.kernel.org Cc: Steve Longerbeam , Mauro Carvalho Chehab , linux-kernel@vger.kernel.org (open list) Subject: [PATCH v4 01/11] media: videodev2.h: Add more field helper macros Date: Thu, 4 Oct 2018 11:53:51 -0700 Message-Id: <20181004185401.15751-2-slongerbeam@gmail.com> In-Reply-To: <20181004185401.15751-1-slongerbeam@gmail.com> References: <20181004185401.15751-1-slongerbeam@gmail.com> Sender: linux-media-owner@vger.kernel.org List-ID: 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