## interlace

interlace

## Description

The interlace element takes a non-interlaced raw video stream as input, creates fields out of each frame, then combines fields into interlaced frames to output as an interlaced video stream. It can also produce telecined streams from progressive input.

#### Example launch line

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    gst-launch-1.0 -v videotestsrc pattern=ball ! interlace ! xvimagesink

This pipeline illustrates the combing effects caused by displaying two interlaced fields as one progressive frame.

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    gst-launch-1.0 -v filesrc location=/path/to/file ! decodebin ! videorate !
      videoscale ! video/x-raw,format=\(string\)I420,width=720,height=480,
      framerate=60000/1001,pixel-aspect-ratio=11/10 !
      interlace top-field-first=false ! autovideosink

This pipeline converts a progressive video stream into an interlaced stream suitable for standard definition NTSC.

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    gst-launch-1.0 -v videotestsrc pattern=ball ! video/x-raw,
      format=\(string\)I420,width=720,height=480,framerate=24000/1001,
      pixel-aspect-ratio=11/10 ! interlace !
      autovideosink

This pipeline converts a 24 frames per second progressive film stream into a 30000/1001 2:3:2:3... pattern telecined stream suitable for displaying film content on NTSC.

## Synopsis

### Element Information

plugin | interlace
author | David Schleef <ds@schleef.org>
class | Filter/Video

### Element Pads

name | sink
direction | sink
presence | always
details | video/x-raw, format=(string){ AYUV, YUY2, UYVY, I420, YV12, Y42B, Y444, NV12, NV21 }, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]

name | src
direction | source
presence | always
details | video/x-raw, format=(string){ AYUV, YUY2, UYVY, I420, YV12, Y42B, Y444, NV12, NV21 }, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ], interlace-mode=(string){ interleaved, mixed }

## Functions

## Types and Values