4 title: Vid.Stab Detect and Transform
5 copyright: Jakub Ksiezniak
6 creator: Marco Gittler <g.marco@freenet.de>
10 url: http://public.hronopik.de/vid.stab/
13 description: Stabilize Video (for wiggly/rolling video)
15 This filter requires two passes. The first pass performs analysis and stores
16 the result in the "results" property. The second pass applies the results to
18 To use with melt, use 'melt ... -consumer xml:output.mlt all=1' for the
19 first pass. For the second pass, use output.mlt as the input.
23 title: Analysis Results
26 Set after analysis. Used during application.
27 A set of image motion information that describes the analyzed clip.
28 When results are not supplied, the filter computes the results and stores
29 them in this property when the last frame has been processed.
32 - identifier: shakiness
37 How shaky the video is.
46 - identifier: accuracy
51 The accuracy of shakiness detection.
60 - identifier: stepsize
65 The step size of the search process.
74 - identifier: mincontrast
75 title: Minimum Contrast
79 Below this contrast, a field is discarded.
94 1 or 2 = show fields and transforms
107 Used during analysis and application.
108 if 0, tripod mode is disabled.
109 if > 0, specifies the frame to be used as a reference frame for tripod mode
110 During application, relative and smoothing properties are both ignored if tripod mode is in use.
119 - identifier: smoothing
123 Used during application.
124 Number of frames for lowpass filtering (2N + 1 frames)
133 - identifier: maxshift
137 Used during application.
138 Maximum number of pixels to transform the image. -1 = no limit
148 - identifier: maxangle
152 Used during application.
153 Maximum angle to rotate, -1 = no limit
167 Used during application.
168 0 = keep border, 1 = black background
181 Used during application.
191 - identifier: relative
195 Used during application.
196 Consider transforms as absolute (0) or relative (1)
209 Used during application.
210 Additional zoom amount
220 - identifier: optzoom
224 Used during application.
225 Automatically determine optimal zoom. 1 - static zoom, 2 - adaptive zoom
234 - identifier: zoomspeed
235 title: Optimal Zoom Speed
238 Used during application.
239 Zoom per frame (used when optzoom = 2)
250 title: Reload Results
252 The application should set this to 1 when it updates the results property to indicate that the results should be reloaded.