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ffmpegdrawtext

Multicolor text in FFmpeg

How to use drawtext in ffmpeg to draw multicolor text over video? Example: I want to highlight a proper nouns in a sentence, "XYZ company shares hike 91%" highlight XYZ white yellow highlight 91% with green

If you have any other approach not using ffmpeg to draw multicolor text over video, that would work too.

Solution

  • enter image description here

    Make ASS subtitles in Aegisub (or manually) and use the subtitles filter in ffmpeg:

    ffmpeg -i input -vf subtitles=colors.ass -c:a copy output

    Example ASS file contents:

    [Script Info]
; Script generated by Aegisub 3.2.2
; http://www.aegisub.org/
Title: Default Aegisub file
ScriptType: v4.00+
WrapStyle: 0
ScaledBorderAndShadow: yes
YCbCr Matrix: None

[Aegisub Project Garbage]

[V4+ Styles]
Format: Name, Fontname, Fontsize, PrimaryColour, SecondaryColour, OutlineColour, BackColour, Bold, Italic, Underline, StrikeOut, ScaleX, ScaleY, Spacing, Angle, BorderStyle, Outline, Shadow, Alignment, MarginL, MarginR, MarginV, Encoding
Style: Default,Arial,20,&H00FFFFFF,&H000000FF,&H00000000,&H00000000,0,0,0,0,100,100,0,0,1,2,2,2,10,10,10,1

[Events]
Format: Layer, Start, End, Style, Name, MarginL, MarginR, MarginV, Effect, Text
Dialogue: 0,0:00:00.00,0:00:05.00,Default,,0,0,0,,{\c&H00FFFF&}XYZ {\c&HFFFFFF&}company shares hike {\c&H00FF00&}91%

    Alternative but not recommended method is to use separate drawtext instances for each color.