How to use the input tab

Open input movie
Interlace
Gamma, range, nclc
Cropping and scaling
Batch size
Block match threshold
Remove jaggies
Reduce noise
Skip repeated frames
Flip vertical or horizontal
Dual mono to stereo
Inspector
Preview

Open input movie

The input tab is where you usually open the movie(s) for editing. Click "Choose..." to bring up the standard "Open file" dialog.
You can clear the movie by clicking "Choose" then clicking "Cancel".
BTW cmd-O opens a movie for deinterlaced playback.

Interlace

In most cases we need to know if the movie is interlaced (not progressive). Most video is interlaced, including most DV and MPEG2. Look for the tell-tale comb structure at the edges of moving objects.
DV video is "bottom field first" meaning that the picture consisting of lines 2,4,6,...,480 of the video frames is 1/60 second earlier than the picture consisting of lines 1,3,5,...,479.
1080i HD video is top field first, 720p video is progressive.

"Reinterlace chroma" solves a problem with interlaced YUV420. Check this if you still see interlace in red edges after deinterlace.
If you want to check the effect of the "reinterlace chroma" feature, convert to '2vuy' (bare project) with and without the option and compare edges of bright red fast moving objects (using a screen loupe).

Gamma, range, nclc

When you open a movie a default color encoding is set in this field. This is determined from metadata or it may be an educated guess. You may enter other values if you know better.
"Range" is usually video range, except for Apple Component format and RGB-based formats like Animation.
"nclc" is a color encoding commonly used by video cameras. It includes a gamma value formally equal to 2.2 but which is really more like 2.0.
You can overrule the nclc assignment or only the gamma value.
The other nclc fields are "primaries" (the monitor phosphors for which the RGB encoding is intended) and the RGB->YCbCR matrix. These two fields only affect strongly saturated colors, which are rare in natural video.
All three standard nclc's (PAL, NTSC, HD) are very similar. The difference only affects strongly saturated colors.

Cropping, aspect ratio

You can crop the input in the "trim" section. The clipping encoded in input movie defines the default trim.
Same for pixel aspect ratio.

Batch size

If you do a multiple open in one of many ways (see "General") then this field shows the batch size. If you open a new input movie before clicking OK any existing batch is cleared.
You can have JES Deinterlacer treat a movie's chapters as a batch by checkmarking the little box.

The following three groups of controls (threshold, jaggies and noise) are coupled to adaptive deinterlace. Adaptive deinterlace is always used for standards conversion and is the default for ordinary deinterlace.

Block match threshold

The quality of deinterlaced video is improved if stationary parts are not deinterlaced (avoiding vertical interpolation).
The threshold determines how blocks of pixels are tested for equality. For clean video from a digital camera 300 is a good value. For noisy video use 600 or higher.
0 means "no adaptive deinterlace" (no stationary parts detected).
A high value is good for noisy video but may cause some interlace artifacts to persist. Artifacts may occur in moving periodic image parts due to spurious block matches. You mave have to lower the threshold to about 200 to get rid of this.

Remove jaggies

A slow feature that detects edges of moving objects and interpolates them in a special way.
Not all edges are found and rare artifacts may occur in certain regular patterns.

Reduce noise

Reduce noise (fast) is a very fast and simple temporal noise filter. This works well for random point noise in static backgrounds.
Only available in combination with adaptive deinterlace (or standards conversion of interlaced input).

Reduce noise (slow) is better quality and always available. It averages 15 frames in order to make backgrounds clean.
To preserve more detail use "Strict random test". For quiet backgrounds use "No random test".

Skip repeated frames

Some movies have a regular pattern of repeated frames. For example, every 24th frame may be repeated to turn film frame rate into PAL frame rate. Or every 4th frame may be repeated to turn film into NTSC.
You can have JES Deinterlacer skip these frames. Movie duration is preserved and the first frame to skip is found automatically.
Example: every frame is repeated due to import error. Set skip = true, skip every Nth = 2.
Caveat: this feature is not compatible with suspend/resume yet.

Flip vertical or horizontal

"Flip horizontal" reflects the image relative to the vertical axis (left<->right).
"Flip vertical" reflects the image relative to the horizontal axis (upside down).
"Flip vertical" is only available if the input or the output is progressive (not interlaced). Otherwise you have to do a change field dominance project (just to get the vertical flip done).

Dual mono to stereo

Checking this option turns two mono tracks or channels in one stereo track.
In case of "Copy sound" you still end up with two tracks, but at least they get tagged as L/R.

Inspector

Some input settings (info, color, dimensions) have been moved to the Inspector in v3.6.

Preview

The Preview shows the effect of the input settings on the input movie as imported by the application.
Flip and reinterlace chroma are shown in the output window.