Thiago Santos
e7d417f4fc
geometrictransform: Make map precalculation optional
...
Adds a variable to be set to allow subclasses to enable
or disable precalculation of the pixels mapping
2010-06-06 13:00:44 -03:00
Thiago Santos
581b63c678
geometrictransform: Set output buffer data to 0
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Initialize output buffer data to 0 before doing the
transform.
2010-06-05 11:04:45 -03:00
Thiago Santos
964c71b7c6
geometrictransform: Descriptions and default values
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Improve some properties and element descriptions and changes
some default properties values.
2010-06-05 10:58:00 -03:00
Thiago Santos
44d33ee1c8
geometrictransform: Remove trailing whitespace
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Remove trailing whitespace from geometrictransform files
2010-06-04 15:53:20 -03:00
Thiago Santos
213277cc02
waterripple: Adds new waterripple element to geometrictransofmr
...
Adds an water ripple distortion element to geometrictransform
2010-06-04 15:31:22 -03:00
Thiago Santos
ed7461b589
sphere: Adds new 'sphere' element to geometrictransform
...
Adds a new element to do 'sphere' effect into geometrictransform
plugin
2010-06-04 15:31:22 -03:00
Thiago Santos
a00614064b
geometrictransform: adds some properties to base class
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Adds a property to select what to do with pixels that are mapped out of
edges: ignore, clamp or wrap.
2010-06-04 15:31:22 -03:00
Thiago Santos
179e234361
circle: Adds circle element to geometrictransform plugin
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Adds the new 'circle' element to geometrictransform plugin
2010-06-04 15:31:21 -03:00
Thiago Santos
8eab2c8a30
kaleidoscope: Adds new element 'kaleidoscope'
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Adds new kaleidoscope element to geometrictransform plugin
2010-06-04 15:31:21 -03:00
Thiago Santos
53d40802d2
gsttwirl: Adds new element twirl
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Adds a new element to geometrictransform plugin: twirl
2010-06-04 15:31:21 -03:00
Thiago Santos
2f9a630a62
geometrictransform: Adds a intermediary baseclass circlegeometrictransform
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Adds an intermediary baseclass named gstcirclegeometrictransform
to keep common properties code for filters that operate on
a circular area.
2010-06-04 15:31:20 -03:00
Thiago Santos
dcda4b606c
pinch: Some optimization using the prepare func
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Small optimization by precalculating the center of the effect,
also use newly added _CAST macro.
2010-06-04 15:31:20 -03:00
Thiago Santos
8c5360a559
geometrictransform: Adds prepare function and cleanup
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Adds a prepare function to make subclasses precalculate values
that will be used throughout the mapping functions.
Also adds a missing cleanup to fix a memleak
2010-06-04 15:31:19 -03:00
Thiago Santos
6560248be9
geometrictransform: Precalculate mapping array
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Precalculate when setting caps the warping map to avoid
recalculating it every buffer
2010-06-04 15:31:19 -03:00
Thiago Santos
1250a7406d
geometrictransform: Accept any rgb or gray
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Using gstvideo functions geometrictransform can handle
rgb or gray, put that on template caps
2010-06-04 15:31:19 -03:00
Thiago Santos
525aae23dc
geometrictransform: Rename some variables for clarity
...
Renames some variables and adds a minimum doc to the
mapping function for a little clarity.
Also uses gstvideo functions for the row and pixel strides
instead of hardcoded values
2010-06-04 15:31:18 -03:00
Thiago Santos
b7660b122c
geometrictransform: New plugin for geometric transforms
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Adds a new plugin that has elements that perform geometric
transformations to images. By geometric transformations I mean
that the operations are functions that given the output pixel
position, get the pixel position in the input image. This pixel
is then copied from input to output.
The gstgeometrictransform baseclass makes it easy to write
such elements. It boils down to write the mapping function
and exposing properties
Already added the first of the elements, 'pinch'. It's a common
effect in image editors, like gimp (distort -> pinch)
2010-06-04 15:31:18 -03:00
