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Install FFMPEG

Download FFmpeg
- Go to: https://ffmpeg.org/download.html
Extract
Add FFmpeg to Your System Path
- Press Windows Key, search for Environment Variables, and open:
  - Edit the system environment variables
- In the window that opens, click Environment Variables…
- Under System variables, find and select Path, then click Edit…
- Click New, then add: C:\\ffmpeg\\bin (O donde tengas Bin) </aside>

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Info and options

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ffmpeg [global_options] {[input_file_options] -i input_url} ... {[output_file_options] output_url} ...

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Flag	Purpose
`-vf "fps=15"`	Drops frame rate to 15 (biggest size saver)
`scale=512:-1`	Resizes to 512 px width, keeping aspect ratio
`flags=lanczos`	Smooth, high-quality downscaling
`-gifflags -offsetting`	Reduces redundant frames
`-y`	Overwrites existing output
`-an`	Removes audio track
`-c:v h264_nvenc`	NVIDIA GPU encoder
`-cq:v 28`	quality level (lower = higher quality + bigger size, higher = smaller size)Q
`-preset fast`	Faster encode, slightly bigger file (`slow` for smaller size)
`-b:v 980k`	Video bitrate
`-t 4`	time ([-][HH:]MM:SS[.m...])
`-i "FILENAME.mp4”`	Indicates the element to input
`-ss 0.5`	Skip time from the start of the video
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Compress MP4

No sound

ffmpeg -i "FILENAME.mp4" -c:v h264_nvenc -cq:v 32 -b:v 0 -preset slow -an "output.mp4"

Video for the cover art

ffmpeg -ss 0 -t 4 -i "FILENAME.mp4" -vf "fps=30,scale=720:-1:flags=lanczos" -loop 0 "FILENAME_CompWebp.webp"

Reduce GIF size

ffmpeg -i "FILENAME.gif" -vf "fps=15,scale=512:-1:flags=lanczos" -gifflags -offsetting -y output_small.gif

EXTRA: Convert to WEBM

ffmpeg -i "FILE_NAME.webm" -an -c:v libvpx-vp9 -crf 48 -b:v 0 -threads 12 "FILE_NAME_compressed.webm"

EXTRA: Convert to gif

ffmpeg -ss 0 -i "FILE_UnC.webm" -vf "fps=30,scale=320:-1:flags=lanczos,palettegen" "palette_NAME.png"
ffmpeg -ss 0 -i "FILE_UnC.webm" -i "palette_NAME.png" -filter_complex "fps=30,scale=720:-1:flags=lanczos[x];[x][1:v]paletteuse" "FILE_CompGif.gif"

Convert to GIF
Record 0 - 89 frames with .webm encoder. </aside>