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August 29, 2015 14:19
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Converting a video captured with Quicktime to GIF (for posting to twitter)
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| ffmpeg -i input2.mov -vf "setpts=(1/2)*PTS" output.mov | |
| ffmpeg -ss 00:00:00.000 -i output.mov -pix_fmt rgb24 -vf scale=506:-1 -r 10 output.gif |
-ss specifies the starting time
-vf scale=506:1 forces to 506px wide, according height
-r specifies framerate
ffmpeg -i in.mov -s 600x400 -pix_fmt rgb24 -r 10 -f gif - | gifsicle --optimize=3 --delay=3 > out.gif
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This one plays at twice the speed, at the size of twitter GIF card