description: Stabilize Video (for wiggly/rolling video)
notes: >
This filter requires two passes. The first pass performs analysis and stores
- the result in the vectors property. The second pass applies the vectors to
+ the result in the "results" property. The second pass applies the results to
the image.
To use with melt, use 'melt ... -consumer xml:output.mlt all=1' for the
first pass. For the second pass, use output.mlt as the input.
parameters:
- - identifier: vectors (transform)
- title: Vectors
- type: geometry
+ - identifier: results
+ title: Analysis Results
+ type: string
description: >
- A set of X/Y coordinates by which to adjust the image.
- When this is not supplied, the filter computes the vectors and stores
+ Set after analysis. Used during application.
+ A set of image motion information that describes the analyzed clip.
+ When results are not supplied, the filter computes the results and stores
them in this property when the last frame has been processed.
+ mutable: no
- identifier: shakiness
title: Shakiness
type: integer
- description: How shaky is the video (analysis)
+ description: >
+ Used during analysis.
+ How shaky the video is.
readonly: no
required: no
minimum: 1
maximum: 10
default: 4
- mutable: yes
+ mutable: no
widget: spinner
- identifier: accuracy
title: Accuracy
type: integer
- description: Accuracy of shakiness detection (analysis)
+ description: >
+ Used during analysis.
+ The accuracy of shakiness detection.
readonly: no
required: no
minimum: 1
maximum: 15
default: 4
- mutable: yes
+ mutable: no
widget: spinner
- identifier: stepsize
title: Stepsize
type: integer
- description: Step size of search process (analysis)
+ description: >
+ Used during analysis.
+ The step size of the search process.
readonly: no
required: no
minimum: 0
maximum: 100
default: 6
- mutable: yes
- widget: spinner
-
- - identifier: algo
- title: Algorithm
- type: integer
- description: 0 = brute force (translation only), 1 = small measurement fields (analysis)
- readonly: no
- required: no
- minimum: 0
- maximum: 1
- default: 1
- mutable: yes
+ mutable: no
widget: spinner
- identifier: mincontrast
title: Minimum Contrast
type: float
- description: Below this contrast, a field is discarded (analysis)
+ description: >
+ Used during analysis.
+ Below this contrast, a field is discarded.
readonly: no
required: no
minimum: 0
maximum: 1
default: 0.3
- mutable: yes
+ mutable: no
widget: spinner
- identifier: show
title: Show
type: integer
- description: 0 = draw nothing, 1 or 2 = show fields and transforms (analysis)
+ description: >
+ Used during analysis.
+ 0 = draw nothing
+ 1 or 2 = show fields and transforms
readonly: no
required: no
minimum: 0
maximum: 2
default: 0
- mutable: yes
+ mutable: no
widget: spinner
- identifier: tripod
title: Tripod
type: integer
- description: virtual tripod mode (if >0) motion is compared to a reference frame (frame N is the value)
+ description: >
+ Used during analysis and application.
+ if 0, tripod mode is disabled.
+ if > 0, specifies the frame to be used as a reference frame for tripod mode
+ During application, relative and smoothing properties are both ignored if tripod mode is in use.
readonly: no
required: no
minimum: 0
maximum: 100000
default: 0
- mutable: yes
+ mutable: no
widget: spinner
- identifier: smoothing
title: Smoothing
type: integer
- description: number of frames for lowpass filtering (2N + 1 frames) (transform)
+ description: >
+ Used during application.
+ Number of frames for lowpass filtering (2N + 1 frames)
readonly: no
required: no
minimum: 0
- identifier: maxshift
title: Maxshift
type: integer
- description: maximum translation, -1 = no limit (transform)
+ description: >
+ Used during application.
+ Maximum number of pixels to transform the image. -1 = no limit
unit: pixels
readonly: no
required: no
- identifier: maxangle
title: Maxangle
type: float
- description: max angle to rotate, -1 = no limit (transform)
+ description: >
+ Used during application.
+ Maximum angle to rotate, -1 = no limit
unit: radians
readonly: no
required: no
- identifier: crop
title: Crop
type: integer
- description: 0 = keep border, 1 = black background (transform)
+ description: >
+ Used during application.
+ 0 = keep border, 1 = black background
readonly: no
required: no
minimum: 0
- identifier: invert
title: Invert
type: integer
- description: Invert transforms (transform)
+ description: >
+ Used during application.
+ Invert transforms
readonly: no
required: no
minimum: 0
widget: spinner
- identifier: relative
- title: Relative Transform
+ title: Relative
type: integer
- description: 0 = absolute, 1 = relative (transform)
+ description: >
+ Used during application.
+ Consider transforms as absolute (0) or relative (1)
readonly: no
required: no
minimum: 0
- identifier: zoom
title: Zoom
type: integer
- description: additional zoom amount (transform)
+ description: >
+ Used during application.
+ Additional zoom amount
unit: percent
readonly: no
required: no
- identifier: optzoom
title: Optimal Zoom
type: integer
- description: automatically determine optimal zoom. 1 - static zoom, 2 - adaptive zoom (transform)
+ description: >
+ Used during application.
+ Automatically determine optimal zoom. 1 - static zoom, 2 - adaptive zoom
readonly: no
required: no
minimum: 0
- identifier: zoomspeed
title: Optimal Zoom Speed
type: float
- description: zoom per frame in percent, (used when optzoom = 2) (transform)
+ description: >
+ Used during application.
+ Zoom per frame (used when optzoom = 2)
+ unit: percent
readonly: no
required: no
minimum: 0
mutable: yes
widget: spinner
- - identifier: refresh
+ - identifier: reload
+ title: Reload Results
description: >
- Applications should set this when it updates a transform parameter.
+ The application should set this to 1 when it updates the results property to indicate that the results should be reloaded.
type: integer
minimum: 0
maximum: 1
+ mutable: yes
projects / mlt / blobdiff