Changes between Version 2 and Version 3 of FilteringGuide


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Timestamp:
Nov 30, 2011, 8:58:44 PM (5 years ago)
Author:
llogan
Comment:

embiggen title, enheaden subtitles

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  • FilteringGuide

    v2 v3  
    1 == FFmpeg Filtering Guide == 
     1= FFmpeg Filtering Guide = 
    22 
    33FFmpeg has access to many filters and more are added on a regular basis. To see what filters are available with your build see ''ffmpeg -filters''. Refer to the [http://ffmpeg.org/libavfilter.html libavfilter documentation] for more information and examples. This wiki page is for user contributed examples and tips. Contributions to this page are encouraged. 
     
    55== Examples == 
    66 
    7 '''Scaling''' 
    8 [[BR]] 
     7=== Scaling === 
    98Starting with something simple. Resize a 640x480 input to a 320x240 output. 
    109{{{ 
     
    1312''iw'' is input width. In this example the input width is 640. 640/2 = 320. The ''-1'' tells the scale filter to preserve the aspect ratio of the output, so in this example the scale filter will choose a value of 240. See the [http://ffmpeg.org/libavfilter.html libavfilter documentation] for additional information. 
    1413 
    15 '''Speed up your video''' 
    16 [[BR]] 
     14=== Speed up your video === 
    1715Increase the speed of a 20 minute video to fit 1 minute output. 1 minute / 20 minutes = 0.05. 
    1816{{{