rgbashift, chromashift¶

rgbashift¶

doc: https://ffmpeg.org/ffmpeg-filters.html#rgbashift

shifting red pixels horizontally¶

#! /bin/sh
ifn="Pexels_2877_2880_fast.mp4"
ifnb="`basename \"${ifn}\" .mp4`"
pref="`basename $0 .sh`"

"../../ffmpeg-20190108-8a1fc95-win64-shared/bin/ffmpeg" -y \
  -i "${ifn}" -vf "rgbashift=rh=-50" \
  -an "${pref}_${ifnb}".mp4

shifting red pixels vertically¶

00:00:07

#! /bin/sh
ifn="Pexels_2877_2880_fast.mp4"
ifnb="`basename \"${ifn}\" .mp4`"
pref="`basename $0 .sh`"

"../../ffmpeg-20190108-8a1fc95-win64-shared/bin/ffmpeg" -y \
  -i "${ifn}" -vf "rgbashift=rv=-50" \
  -an "${pref}_${ifnb}".mp4

shifting green pixels horizontally¶

00:00:14

#! /bin/sh
ifn="Pexels_2877_2880_fast.mp4"
ifnb="`basename \"${ifn}\" .mp4`"
pref="`basename $0 .sh`"

"../../ffmpeg-20190108-8a1fc95-win64-shared/bin/ffmpeg" -y \
  -i "${ifn}" -vf "rgbashift=gh=-50" \
  -an "${pref}_${ifnb}".mp4

shifting green pixels vertically¶

00:00:21

#! /bin/sh
ifn="Pexels_2877_2880_fast.mp4"
ifnb="`basename \"${ifn}\" .mp4`"
pref="`basename $0 .sh`"

"../../ffmpeg-20190108-8a1fc95-win64-shared/bin/ffmpeg" -y \
  -i "${ifn}" -vf "rgbashift=gv=-50" \
  -an "${pref}_${ifnb}".mp4

shifting blue pixels horizontally¶

00:00:28

#! /bin/sh
ifn="Pexels_2877_2880_fast.mp4"
ifnb="`basename \"${ifn}\" .mp4`"
pref="`basename $0 .sh`"

"../../ffmpeg-20190108-8a1fc95-win64-shared/bin/ffmpeg" -y \
  -i "${ifn}" -vf "rgbashift=bh=-50" \
  -an "${pref}_${ifnb}".mp4

shifting blue pixels vertically¶

00:00:36

#! /bin/sh
ifn="Pexels_2877_2880_fast.mp4"
ifnb="`basename \"${ifn}\" .mp4`"
pref="`basename $0 .sh`"

"../../ffmpeg-20190108-8a1fc95-win64-shared/bin/ffmpeg" -y \
  -i "${ifn}" -vf "rgbashift=bv=-50" \
  -an "${pref}_${ifnb}".mp4

edge=smear¶

00:00:43

#! /bin/sh
ifn="Pexels_2877_2880_fast.mp4"
ifnb="`basename \"${ifn}\" .mp4`"
pref="`basename $0 .sh`"

"../../ffmpeg-20190108-8a1fc95-win64-shared/bin/ffmpeg" -y \
  -i "${ifn}" -vf "rgbashift=bv=-50:edge=smear" \
  -an "${pref}_${ifnb}".mp4

chromashift¶

doc: https://ffmpeg.org/ffmpeg-filters.html#chromashift

I will not show the processing result of “chromashift”. The first reason is that the usage is the same as “rgbashift”. Another reason is that human beings are not good at identifying chroma, so the processing results are very difficult to perceive. (In other words, the processing result will confuse you.)

shifting chroma-blue pixels horizontally¶

#! /bin/sh
ifn="Pexels_2877_2880.mp4"
ifnb="`basename \"${ifn}\" .mp4`"
pref="`basename $0 .sh`"

"../../ffmpeg-20190108-8a1fc95-win64-shared/bin/ffmpeg" -y \
  -i "${ifn}" -vf "chromashift=cbh=-30" \
  -an "${pref}_${ifnb}".mp4

shifting chroma-blue pixels vertically¶

#! /bin/sh
ifn="Pexels_2877_2880.mp4"
ifnb="`basename \"${ifn}\" .mp4`"
pref="`basename $0 .sh`"

"../../ffmpeg-20190108-8a1fc95-win64-shared/bin/ffmpeg" -y \
  -i "${ifn}" -vf "chromashift=cbv=-30" \
  -an "${pref}_${ifnb}".mp4

shifting chroma-red pixels horizontally¶

#! /bin/sh
ifn="Pexels_2877_2880.mp4"
ifnb="`basename \"${ifn}\" .mp4`"
pref="`basename $0 .sh`"

"../../ffmpeg-20190108-8a1fc95-win64-shared/bin/ffmpeg" -y \
  -i "${ifn}" -vf "chromashift=crh=-30" \
  -an "${pref}_${ifnb}".mp4

shifting chroma-red pixels vertically¶

#! /bin/sh
ifn="Pexels_2877_2880.mp4"
ifnb="`basename \"${ifn}\" .mp4`"
pref="`basename $0 .sh`"

"../../ffmpeg-20190108-8a1fc95-win64-shared/bin/ffmpeg" -y \
  -i "${ifn}" -vf "chromashift=crv=-30" \
  -an "${pref}_${ifnb}".mp4