Difference between revisions of "Video Output"

From VideoLAN Wiki
Jump to navigation Jump to search
m (Reverted edit of W3nis, changed back to last version by OlivierAubert)
m (add page to Category:Documentation, add wikilink)
 
(15 intermediate revisions by 12 users not shown)
Line 21: Line 21:
  
 
=== aa, caca ===
 
=== aa, caca ===
ASCII Art modules. '''aa''' displays output in black and white, '''caca''' in colour.
+
ASCII Art modules. '''aa''' displays output in black and white, '''[[caca]]''' in colour.
  
  
Line 34: Line 34:
 
=== glx, opengl ===
 
=== glx, opengl ===
 
Use OpenGL video output
 
Use OpenGL video output
 
=== snapshot ===
 
 
A pseudo video output that stores reduced-size snapshots of the video in a memory cache. The cache can thereafter be accessed through the [[MediaControlAPI]]. It is commonly used through the clone vout filter, in order to be able to watch the video and get snapshots on demand.
 
  
 
=== dummy ===
 
=== dummy ===
Line 50: Line 46:
 
  --clone-vout-filter=''caca,glx''
 
  --clone-vout-filter=''caca,glx''
 
  --clone-count=''2''
 
  --clone-count=''2''
 +
 +
== Changing video output ==
 +
If you wish to change your video output module without using the command line, here's how to proceed:
 +
=== Qt Interface ===
 +
* Go to tools -> preferences (or press Ctrl+P)
 +
* Select the Video tab
 +
* Select another video output module by changing the "Output" combo-box
 +
* Stop any playback
 +
* Launch the playback again
 +
=== Macosx Interface ===
 +
'''TODO'''
  
 
{{stub}}
 
{{stub}}
 +
 +
[[Category:Documentation]]

Latest revision as of 21:41, 10 November 2016

VideoLAN comes with a selection of Video Output modules. These can display output on almost any computer.

If you don't want any video, you can use the --no-video option.


Output Modules

To select one of these modules, use the -V (--vout) command line option, eg:

vlc my.avi -V caca


image

Save all the frames of a video as a sequence of images. You can select the output format using --image-out-format (currently you can only choose png), and the start of the file name with --image-out-prefix. Finally, to create an image once out of a number of frames, give that number to --image-out-ratio. For example,

vlc v4l:// --image-out-prefix=webcam --image-out-ratio=20

will create a series of images named

webcam000001.png
webcam000002.png
webcam000003.png
...


aa, caca

ASCII Art modules. aa displays output in black and white, caca in colour.


x11

Use Linux's X11 video output


xvideo

XVideo extension video output, a more advanced form of X11.


glx, opengl

Use OpenGL video output

dummy

Don't show output


Cloning

To display output in more than one window, video cloning can be used. To use this, specify

--vout-filter=clone

on the command line: this tells vlc to use cloning. You also need to tell vlc what output modules you want with, for example,

--clone-vout-filter=caca,glx
--clone-count=2

Changing video output

If you wish to change your video output module without using the command line, here's how to proceed:

Qt Interface

  • Go to tools -> preferences (or press Ctrl+P)
  • Select the Video tab
  • Select another video output module by changing the "Output" combo-box
  • Stop any playback
  • Launch the playback again

Macosx Interface

TODO

Help VideoLAN by adding to this page!
Create an account to start editing, and then click here to add to this article.