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avconv

gopro fisheye removal / correction - avconv, mogrify

Script:

#!/bin/bash
mkdir video
avconv -i GOPR0001.MP4 -same_quant video/%09d.png
mogrify -distort barrel "0 0 -0.18" video/*.png
avconv -r 60 -i video/%09d.png -c:v libx264 nofish.avi

https://gist.github.com/KonradIT/ee685aee15ba1c3c44b4

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Tricks avconv/ffmpeg, SOX, ImageMagick

http://wiki.ubuntu.cz/triky_s_imagemagick_a_ffmpeg

Convert video to images:

avconv -i video.mov -sameq output/%09d.png
avconv -i video.mov -same_quant output/%09d.png

Create video / timelapse: 5frames/s, best quality -qscale 1

ffmpeg -r 5 -qscale 1 -i input/%09d.jpg output.avi

Rename/sort images for avconv/ffmpeg input criteria:

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