media

highly recommanded

cmd.to

video

get audio from video

[!NOTE|label:references:]

  • ffmpeg params:

    • -acodec copy -vn

    • -ab 12800 -ar 44100

download video

convert flv to mp4

options:

  • pic-%02d.png: Read all images from the current folder with the prefix pic-, a following number of 2 digits (%02d) and an ending of .png

  • -r 1/5 : Displays each image for 5 seconds

  • r 30 : Output framerate of 30 fps.

  • -c:v libx264 : Output video codec: h264

  • pix_fmt yuv420p : YUV pixel format

convert to 5 mins (300 sec)

sequence convert (every 5 mins ~> 300 secs)

  • first 5 mins (0 ~> 300)

  • second 5 mins (300*1 ~> 300)

  • third 5 mins (300*2 ~> 300)

convert pdf to png

  • -density 400 : Set the horizontal resolution of the image

combine video and audio

combine

compression mov

[!NOTE|label:references:]

convert mov to mp4

[!NOTE|label:reference:]

slice video to images

convert video to gif

[!NOTE|label:references:]

convert pngs into gif

tips

image

  • for multiple images

identity an image

convert svg to png

convert HEIC/HEIF to PNG

magick

  • or

animation flow chart

create animation flow

[!NOTE|label:references:]

  • draw.io

    flow animation
  • export to svg

    export to svg

convert svg to gif

others

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