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You can use Windows Media Encoder to
Deinterlacing is the process of creating a progressive frame of video out of an interlaced frame. With progressive video, the lines in each frame are painted sequentially. In contrast, interlaced video contains two fields per frame captured at different time instants; during rendering, the lines of one field are displayed first, and then the lines of the second field are displayed. Interlaced content is common because the NTSC and PAL standards use interlaced video signals. When interlaced video is played on a progressive-scan display, such as a computer, it can appear to flicker as the fields are rendered. Deinterlacing the video during encoding reduces the flickering. Deinterlacing is not supported for a source that was not previously interlaced.
Windows Media Encoder has three deinterlace filters. The filter used depends on the difference between the input and output frame size and frame rate.
The inverse telecine process removes frames that were added during telecining when film (24 fps) was converted to NTSC video (29.97 or 30 fps). The inverse telecine filter removes artifacts and improves the quality of encoded content, especially at low bit rates.
Content is telecined in a pattern called 3:2 pulldown, which refers to the process used to create the extra frames. If the 3:2 pulldown pattern is consistent throughout the source video, the video is said to be coherent. However, video often is not coherent, meaning that there are breaks in the 3:2 pulldown pattern. For example, pattern breaks, or incoherencies, can be introduced when video is edited. If your content is coherent, you can choose the exact frame at which the 3:2 pulldown pattern starts. Or, you can choose to have the pattern be detected automatically.
Inverse telecine is not supported for:
Maintaining the interlacing in your video is useful if it will be displayed on interlaced playback devices, such as televisions. You must use the Windows Media Video 9 codec to be able to use this option. In addition, the user playing your content must have Microsoft Windows XP, a player that is based on the Windows Media Format 9 Series Software Development Kit (SDK), and a graphic card that supports interlacing; otherwise, your content is automatically deinterlaced.
If your source video is mixed (progressive and interlaced) and you select the Maintain interlacing option, the output video will also be mixed.
If you are not sure whether your source content is progressive, interlaced, or telecined, you can use the encoder to detect the format by clicking Detect on the Processing tab of the Properties panel.
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