diff options
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/media/uapi/v4l/field-order.rst | 16 |
1 files changed, 7 insertions, 9 deletions
diff --git a/Documentation/media/uapi/v4l/field-order.rst b/Documentation/media/uapi/v4l/field-order.rst index 3fb473e3b8e2..d640e922a974 100644 --- a/Documentation/media/uapi/v4l/field-order.rst +++ b/Documentation/media/uapi/v4l/field-order.rst @@ -75,12 +75,11 @@ enum v4l2_field * - ``V4L2_FIELD_ANY`` - 0 - - Applications request this field order when any one of the - ``V4L2_FIELD_NONE``, ``V4L2_FIELD_TOP``, ``V4L2_FIELD_BOTTOM``, or - ``V4L2_FIELD_INTERLACED`` formats is acceptable. Drivers choose - depending on hardware capabilities or e. g. the requested image - size, and return the actual field order. Drivers must never return - ``V4L2_FIELD_ANY``. If multiple field orders are possible the + - Applications request this field order when any field format + is acceptable. Drivers choose depending on hardware capabilities or + e.g. the requested image size, and return the actual field order. + Drivers must never return ``V4L2_FIELD_ANY``. + If multiple field orders are possible the driver must choose one of the possible field orders during :ref:`VIDIOC_S_FMT <VIDIOC_G_FMT>` or :ref:`VIDIOC_TRY_FMT <VIDIOC_G_FMT>`. struct @@ -88,9 +87,8 @@ enum v4l2_field ``V4L2_FIELD_ANY``. * - ``V4L2_FIELD_NONE`` - 1 - - Images are in progressive format, not interlaced. The driver may - also indicate this order when it cannot distinguish between - ``V4L2_FIELD_TOP`` and ``V4L2_FIELD_BOTTOM``. + - Images are in progressive (frame-based) format, not interlaced + (field-based). * - ``V4L2_FIELD_TOP`` - 2 - Images consist of the top (aka odd) field only. |