ffmpeg的drawtext使用总结

drawtext的参数中关于字体颜色和边框颜色的是：

text ..FV...... set text

x ..FV...... set x expression (default "0")

y ..FV...... set y expression (default "0")

fontcolor ..FV...... set foreground color (default "black")

bordercolor ..FV...... set border color (default "black")

borderw ..FV...... set border width (from INT_MIN to INT_MAX) (default 0)

tabsize ..FV...... set tab size (from 0 to INT_MAX) (default 4)

如果要让字体是白色，边框为红色，则命令为

fontcolor=white:tabsize=0:borderw=2:bordercolor=red

出现的时间用通用参数enable

enable='between(t,0,12)'

演示效果视频：

https://www.toutiao.com/video/7194269361438360120/