Drawing texts

• drawtext
  • Minimal example
    • To enable default font fallback and the font option
  • Newline, and tab
  • Text position
  • color, box, border, and shadow
    • fontcolor, fontcolor_expr
    • box, boxborderw, boxcolor, line_spacing
    • borderw, bordercolor
    • shadowcolor, shadowx, shadowy
    • alpha
  • Text expansion
  • `textfile’ and `reload=1’
  • with sendcmd
• drawtext with signalstats
• drawtext with pts, etc
• drawtext, drawgraph, blackframe, freezedetect
• subtitle
  • Table of Contents
    • srt (“SubRip”)
    • ass (“Advanced SubStation Alpha” (v4.00+))
    • Tips for `ass’
• Showing the source code of programming launguage as video
  • Using `subtitles’
  • Using `latex’
  • Using `pygmentize’
    • To pause before and after scrolling
    • To emphasize lines, to omit linenumbers
    • Visualizing the result of `trace.py -t’
• Rendering math
  • Is there a way to render math only with ffmpeg?
  • What would happen if we were to achieve this with just “ass”?
  • After all…