ImageMagick/FFMPEG: Convert MP4 to GIF

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Resulting GIF has wrong frame rate


static void ConvertMp4ToGif(string input, string output)
{
    try
    {
        using (var collection = new MagickImageCollection(input))
        {
            // collection.Coalesce();
            // collection.Optimize();
            collection.Write(output);
        }

        Console.WriteLine("Conversion successful. GIF file saved at: " + output);
    }
    catch (MagickException ex)
    {
        Console.WriteLine("Error during conversion: " + ex.Message);
    }
}

ImageMagick, What does Q8 vs Q16 actually mean?

Under Windows, I need to choose between Q8 and Q16. I know that Q8 are 8 bits-per-pixel component (e.g. 8-bit red, 8-bit green, etc.), whereas, Q16 are 16 bits-per-pixel component. I know also that...

https://stackoverflow.com/questions/48937738/imagemagick-what-does-q8-vs-q16-actually-mean

Q8 vs. Q16 speed (& hdri) - Legacy ImageMagick Discussions Archive

Post by Marsu42 » 2014-07-30T12:18:53-07:00

https://legacy.imagemagick.org/discourse-server/viewtopic.php?t=26011

ffmpeg fails with dylib error · Issue #153177 · Homebrew/homebrew-core

brew gist-logs <formula> link OR brew config AND brew doctor output https://gist.github.com/llimllib/2cd4aab015fd4d31fff5adce1587ae6e Verification My "brew doctor output" says Your ...

https://github.com/Homebrew/homebrew-core/issues/153177#issuecomment-1791311134

Using FFMPEG


ffmpeg -y -i input.mp4 \
    -vf "fps=30,scale=iw*1:-1:flags=lanczos,split[s0][s1];[s0]palettegen[p];[s1][p]paletteuse" \
    -loop 0 output.gif

Light


ffmpeg -i input.mp4 \
    -vf "fps=30,scale=iw*0.7:-1:flags=lanczos,eq=brightness=0.09:contrast=1.18,split[s0][s1];[s0]palettegen[p];[s1][p]paletteuse" \
    -loop 0 output2.gif

Dark


ffmpeg -i intro.gif -ignore_loop 0 -i output.gif -filter_complex "[0:v]fps=10,split=2[intro1][intro2];[intro1]trim=duration=2[intro_trimmed];[intro_trimmed][intro2]concat=n=2:v=1:a=0[outv]" -map "[outv]" output_with_intro.gif

Merging intro.gif and input.gif


ffmpeg -y -i input.mp4 \
    -vf "fps=30,scale=iw*1:-1:flags=lanczos,
    split[s0][s1];
    [s0]palettegen[p];
    [s1][p]paletteuse,
    drawtext=text='Your Text Here':fontfile=/Users/matt/Library/Fonts/Inter-Bold.otf:fontcolor=white:box=1:boxcolor=black:boxborderw=5:x=(W-text_w-10):y=(H-text_h-10):fontsize=50:box=1:boxborderw=20:boxcolor=black" \
    -loop 0 output.gif

Text box


ffmpeg -y -i input.mp4 -vf "fps=30,scale=1280:-1:flags=lanczos,split[s0][s1];[s0]palettegen=max_colors=256:stats_mode=diff[p];[s1][p]paletteuse=dither=none:new=1" -loop 0 output.gif

How to make GIFs with FFMPEG

GIPHY Engineering blog