Difference between revisions of "Documentation:Modules/alphamask"
Jump to navigation
Jump to search
m |
|||
| Line 11: | Line 11: | ||
Example use: | Example use: | ||
| − | % '''vlc -I telnet --color -vvv --vlm-conf mosaic.vlm | + | % '''vlc -I telnet --color -vvv --vlm-conf mosaic.vlm --mosaic-keep-picture \''' |
| − | |||
'''--fake-file ~/images/mire.jpg --fake-width 360 --fake-height 270 \''' | '''--fake-file ~/images/mire.jpg --fake-width 360 --fake-height 270 \''' | ||
'''--no-audio --sub-filter mosaic''' | '''--no-audio --sub-filter mosaic''' | ||
| Line 19: | Line 18: | ||
new channel0 broadcast enabled | new channel0 broadcast enabled | ||
| − | setup channel0 input | + | setup channel0 input redefined-nintendo.mpg |
| − | setup channel0 output #duplicate{dst=mosaic-bridge{id=0,height=270,width=360,mask= | + | setup channel0 output #duplicate{dst=mosaic-bridge{id=0,height=270,width=360,chroma=YUVA,vfilter=alphamask{mask=cone_360x270.png}},select=video} |
new background broadcast enabled | new background broadcast enabled | ||
Revision as of 12:36, 22 January 2008
| Module: alphamask | |
|---|---|
| Type | Video filter |
| First VLC version | 0.9.0 |
| Last VLC version | - |
| Operating system(s) | all |
| Description | change the video's alpha channel |
| Shortcut(s) | - |
This filter can be used in the mosaic framework to set a video's alpha channel (or transparency) based on a PNG image's alpha channel. You can thus blend only parts of the mosaic substream on the background.
- alphamask-mask <string> : PNG file to use as a mask. The alpha channel only will be used to build the mask. This image needs to have the same size as the video it will be used with.
Example use:
% vlc -I telnet --color -vvv --vlm-conf mosaic.vlm --mosaic-keep-picture \ --fake-file ~/images/mire.jpg --fake-width 360 --fake-height 270 \ --no-audio --sub-filter mosaic
And the vlm config:
new channel0 broadcast enabled
setup channel0 input redefined-nintendo.mpg
setup channel0 output #duplicate{dst=mosaic-bridge{id=0,height=270,width=360,chroma=YUVA,vfilter=alphamask{mask=cone_360x270.png}},select=video}
new background broadcast enabled
setup background input fake:
control background play
control channel0 play
The files used are available on http://people.videolan.org/~dionoea/mosaic/ if you want to test. (This will blend the redefined nintendo video in a cone like region)
See also:
