media: videodev2.h: Add more field helper macros
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> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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@ -130,6 +130,13 @@ enum v4l2_field {
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((field) == V4L2_FIELD_BOTTOM ||\
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(field) == V4L2_FIELD_TOP ||\
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(field) == V4L2_FIELD_ALTERNATE)
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#define V4L2_FIELD_IS_INTERLACED(field) \
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((field) == V4L2_FIELD_INTERLACED ||\
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(field) == V4L2_FIELD_INTERLACED_TB ||\
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(field) == V4L2_FIELD_INTERLACED_BT)
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#define V4L2_FIELD_IS_SEQUENTIAL(field) \
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((field) == V4L2_FIELD_SEQ_TB ||\
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(field) == V4L2_FIELD_SEQ_BT)
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enum v4l2_buf_type {
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V4L2_BUF_TYPE_VIDEO_CAPTURE = 1,
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