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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: