Differences

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--- vidstab [2015/07/10 02:48]
slackermedia created
+++ vidstab [2021/06/03 19:48] (current)
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-====================
+======vid.stab======
-<WRAP notice prewrap 50%>
+[[http://public.hronopik.de/vid.stab/features.php?lang=en|vid.stab]] is a video stabliser for ''transcode'' and ''ffmpeg''.
+<WRAP notice prewrap 50%>
 <WRAP rightalign>
 ===== Strengths [Weaknesses] =====
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 </WRAP>
-======Install======
+=====Install=====
+Install [[http://public.hronopik.de/vid.stab/features.php?lang=en|vid.stab]] from [[http://slackbuilds.org]].
-[[http://public.hronopik.de/vid.stab/features.php?lang=en]]
+The Slackermedia build of [[ffmpeg]] has ''vidstab'' enabled. Other builds of ''ffmpeg'' may not have this feature enabled, so if you used another ''ffmpeg'' build or built it yourself, you should double-check that it is active:
-https://github.com/georgmartius/vid.stab
+<code>
-now can be used without transcode but for now:
+$ ffmpeg --version
+</code>
+Look in the output for the ''--enable-libvidstab'' flag. If it is set, then your installed version of ''ffmpeg'' can use ''vid.stab''.
+=====Usage=====
+Vid.stab is a two-step process; first video must be analysed, and then it can be stabilised.
+Fine adjustments probably need to be made depending on the severity of the shaking in the video. Read more about the different options on [[https://github.com/georgmartius/vid.stab]], and as always, practise makes perfect. Learn to identify the different "kinds" of shakes by stabilising as many clips as you can; take notes on the results, and try different techniques.
+First, analyse a video file, using the filter ''vidstabdetect'':
 <code>
-$ transcode -J stabilize -i foo.mp4
+$ ffmpeg -i foo.mp4 -vf vidstabdetect=shakiness=10:accuracy=15:result="transforms.trf"
-$ transcode -J transform -i foo.mp4 -y xvid -o bar.mp4
 </code>
+There is no video output from this command, but data about the video is written to the file ''transforms.trf''.
+Use this data to stabilise the video, applying a slight zoom so that the transforms around the edges of the screen are not visible:
+<code>
+$ ffmpeg -i foo.mp4 -vf vidstabtransform=zoom=5:input="mytransforms.trf" fooStabilized.mp4
+</code>
 <WRAP tip>
 **See Also** \\
 [[kdenlive|Kdenlive]] \\
+[[lightworks|Lightworks]] \\
 [[blender|Blender]]
 </WRAP>
+<WRAP centeralign>
+<wrap fa>[[trelby|R]]</wrap> <wrap fa>[[start|S]]</wrap> <wrap fa>[[videogrep|Q]]</wrap>
+</WRAP>
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