0000632: Pan/Crop/3D view

(0002361)
LeHomard (developer)
2009-02-05 15:24

Similar to this http://www.kdenlive.org/mantis/view.php?id=440 [^]

(0002381)
ddennedy (developer)
2009-02-09 09:45

Pan, crop, and zoom are currently the top of my TODO list, but I have no idea what a 3D view would do. These are 2D operations. This is not about rotating about any axis. The developers do not have Vegas or After Effects. If you can locate a screencast tutorial on the web, we can take a look at that.

(0002382)
ddennedy (developer)
2009-02-09 09:46

There is a separate issue opened for applying effects to a track, but I don't want to look for that right now. It is a separate issue that applies to all effects, not just this one.

(0002388)
Eugenia (reporter)
2009-02-09 12:26

Here are some tutorials about the 3D track motion ability of Vegas, and some for its pan/crop one:
http://www.youtube.com/results?search_type=&search_query=vegas+3d+track+motion&aq=2&oq=vegas+3d [^]
http://www.youtube.com/results?search_type=&search_query=vegas+pan+crop&aq=f [^]

(0002390)
ddennedy (developer)
2009-02-09 18:47

OK, this is what I thought. The 3D stuff is simply 2D rotation and skew with a fancy 3D ball controller widget :-) All of this can be accomplished today using the MLT affine filter, which is is not fully exposed / underutilized by kdenlive. There are 3 major shortcomings that I know of that I will be addressing:

1) zooming is not coordinating with the producer and scaling filters to maximize the image quality. The image is first being scaled to the project settings prior to being filtered in the affine filter. This will not be too hard and should be in the next release.

2) lack of interpolation for sub-pixel positioning and rendering. This is not critical for a static crop, but the image quality is lacking for rotation and skewing. And anything animated just does not look good at all, really. I might just integrate gavl to gain this feature:
http://hirntier.blogspot.com/2008/09/image-transformation.html [^]

3) not field-aware for interlaced images. I need to investigate whether this is feasible, just extremely difficult, or what the trade-offs are vis-a-vis simply deinterlacing first.

(0003070)
ddennedy (developer)
2009-06-03 07:45

reclassifying as feature request

(0005525)
LeHomard (developer)
2010-08-11 10:53

Setting to acknowledged.

Basically it could boil down to : "add clip pan/resize to project monitor" which Ttill has started working on.

Issue History
Date Modified	Username	Field	Change
2009-01-30 09:28	Eugenia	New Issue
2009-01-30 09:28	Eugenia	Build/Install Method	=> Distribution package
2009-01-30 10:40	Granjow	Relationship added	child of 0000627
2009-02-05 15:24	LeHomard	Note Added: 0002361
2009-02-09 09:45	ddennedy	Note Added: 0002381
2009-02-09 09:45	ddennedy	Relationship added	duplicate of 0000565
2009-02-09 09:46	ddennedy	Note Added: 0002382
2009-02-09 09:48	ddennedy	Relationship added	related to 0000610
2009-02-09 12:26	Eugenia	Note Added: 0002388
2009-02-09 18:47	ddennedy	Note Added: 0002390
2009-06-03 07:45	ddennedy	Note Added: 0003070
2009-06-03 07:45	ddennedy	Severity	major => feature
2010-08-11 10:53	LeHomard	Note Added: 0005525
2010-08-11 10:53	LeHomard	Assigned To	=> LeHomard
2010-08-11 10:53	LeHomard	Status	new => acknowledged

Notes
(0002361) LeHomard (developer) 2009-02-05 15:24	Similar to this http://www.kdenlive.org/mantis/view.php?id=440 [^]

(0002381) ddennedy (developer) 2009-02-09 09:45	Pan, crop, and zoom are currently the top of my TODO list, but I have no idea what a 3D view would do. These are 2D operations. This is not about rotating about any axis. The developers do not have Vegas or After Effects. If you can locate a screencast tutorial on the web, we can take a look at that.

(0002382) ddennedy (developer) 2009-02-09 09:46	There is a separate issue opened for applying effects to a track, but I don't want to look for that right now. It is a separate issue that applies to all effects, not just this one.

(0002388) Eugenia (reporter) 2009-02-09 12:26	Here are some tutorials about the 3D track motion ability of Vegas, and some for its pan/crop one: http://www.youtube.com/results?search_type=&search_query=vegas+3d+track+motion&aq=2&oq=vegas+3d [^] http://www.youtube.com/results?search_type=&search_query=vegas+pan+crop&aq=f [^]

(0002390) ddennedy (developer) 2009-02-09 18:47	OK, this is what I thought. The 3D stuff is simply 2D rotation and skew with a fancy 3D ball controller widget :-) All of this can be accomplished today using the MLT affine filter, which is is not fully exposed / underutilized by kdenlive. There are 3 major shortcomings that I know of that I will be addressing: 1) zooming is not coordinating with the producer and scaling filters to maximize the image quality. The image is first being scaled to the project settings prior to being filtered in the affine filter. This will not be too hard and should be in the next release. 2) lack of interpolation for sub-pixel positioning and rendering. This is not critical for a static crop, but the image quality is lacking for rotation and skewing. And anything animated just does not look good at all, really. I might just integrate gavl to gain this feature: http://hirntier.blogspot.com/2008/09/image-transformation.html [^] 3) not field-aware for interlaced images. I need to investigate whether this is feasible, just extremely difficult, or what the trade-offs are vis-a-vis simply deinterlacing first.

(0003070) ddennedy (developer) 2009-06-03 07:45	reclassifying as feature request

(0005525) LeHomard (developer) 2010-08-11 10:53	Setting to acknowledged. Basically it could boil down to : "add clip pan/resize to project monitor" which Ttill has started working on.