提交 924b34ea 编写于 作者: H Hans Verkuil 提交者: Mauro Carvalho Chehab

[media] DocBook media: improve V4L2_DV_FL_HALF_LINE documentation

Explicitly specify where the half-line is added or removed in
each field.
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Cc: Prashant Laddha <prladdha@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@osg.samsung.com>
上级 e202e515
......@@ -318,10 +318,11 @@ can't generate such frequencies, then the flag will also be cleared.
</row>
<row>
<entry>V4L2_DV_FL_HALF_LINE</entry>
<entry>Specific to interlaced formats: if set, then field 1 (aka the odd field)
is really one half-line longer and field 2 (aka the even field) is really one half-line
shorter, so each field has exactly the same number of half-lines. Whether half-lines can be
detected or used depends on the hardware.
<entry>Specific to interlaced formats: if set, then the vertical frontporch
of field 1 (aka the odd field) is really one half-line longer and the vertical backporch
of field 2 (aka the even field) is really one half-line shorter, so each field has exactly
the same number of half-lines. Whether half-lines can be detected or used depends on
the hardware.
</entry>
</row>
</tbody>
......
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