4.2

a progressive or frame rate.
If the current setting does not allow field order modification,
this control remains dimmed. If you want to convert a file with
an interlaced format into a progressive format, see
.
Note: The properties in the Retiming section of the General
inspector are always affected by the “Frame rate” property, as
well as the “Retiming quality” property in the Video inspector.
About deinterlacing
Video to be played on traditional NTSC or PAL televisions is
encoded using an interlaced frame rate. Each frame is actually
made up of two half-frames called fields. Each field contains half
the frame lines; the odd (or upper) field contains lines 1, 3, 5, 7, 9
and so on, and the even (or lower) field contains lines 2, 4, 6, 8,
10, and so on. When the video is played back, the TV displays the
fields in an alternating pattern, which creates an effective illusion
of smooth movement. Viewing interlaced video on a computer
screen that displays both fields simultaneously may reveal a
combing effect.
interlaced
About
deinterlacing