Still frames from this conversion show "broken" or "bent" vertical lines in moving scenes. Horizontal and vertical pans may show a slight wobble. Switch Mode is an attempt to avoid motion blurring, but comes at the expense of slight flicker and motion artifacts. When working with interlaced video, it is important to let the filter operate on individual fields, not on the interlaced frames.
SPEED SETTING ON A WINAMP PACEMAKER TV
This is a typical artifact of frame rate conversion and can be seen on commercial video tapes and TV programs as well. The parameter zone specifies the height of the transition region in which the current frame will be blended into the next.īlend Mode will cause visible, although slight, blurring of motion. Switch Mode assumes that the output will be shown on a TV where each frame is scanned from top to bottom. If zone is present, it will switch from one video frame to the next ("Switch Mode") whenever a new source frame begins, that is, usually somewhere in the middle of a target frame. If the optional argument zone is not present, it will blend adjacent video frames, weighted by a blend factor proportional to the frames' relative timing ("Blend Mode"). The output will have (almost) the same duration as clip, but the number of frames will change proportional to the ratio of target and source frame rates. The filter attempts to convert the frame rate of clip to new_rate without dropping or inserting frames, providing a smooth conversion with results similar to those of standalone converter boxes. This is also a method to change only the sample rate of the audio alone.ĬonvertFPS(clip, float new_rate, int "zone", int "vbi")ĬonvertFPS() is a video filter for Avisynth. If sync_audio is true, it also changes the audio sample rate to match the duration of the video, the pitch of the resulting audio gets shifted.
The AssumeFPS filter changes the frame rate without changing the frame count (causing the video to play faster or slower). Whats the difference between assumefps() and convertfps()?ĪssumeFPS(clip, float fps, bool "sync_audio")ĪssumeFPS(clip, int numerator, bool "sync_audio")
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