• https://gl-transitions.com/editor/crosswarp

Install

ffmpeg

• https://blog.csdn.net/JAVA_XCNH/article/details/103858794 (ffmpeg gl-transitions 图片合成视频 转场特效) nodejs
• https://nodejs.org/en/download/current/

Test command

ffmpeg -t 4 -loop 1 -i 1.jpg -t 4 -loop 1 -i 2.jpg -i 3.jpg -filter_complex "gltransition=offset=0.5:duration=3.0:source=/home/ym/github/ffmpeg-gl-transition/gl-transitions/transitions/crosswarp.glsl" -y out.mp4

ffplay out.mp4

Git

• https://github.com/transitive-bullshit/ffmpeg-gl-transition

Reference

• https://github.com/nickliqian/cnn_captcha

• https://github.com/kerlomz/captcha_trainer

• https://github.com/Dawnnnnnn/bilibili-captcha 基于 https://github.com/kerlomz/captcha_trainer 进行训练 基于 https://github.com/kerlomz/captcha_platform 进行部署

https://github.com/rdmpage/solving-captchas-code-examples https://medium.com/@ageitgey/how-to-break-a-captcha-system-in-15-minutes-with-machine-learning-dbebb035a710

error

• 1 https://blog.csdn.net/coderwuqiang/article/details/51447888?utm_medium=distribute.pc_relevant.none-task-blog-baidujs-1 "./configure ......"时加上“--enable-libfreetype”
• 2

cmd

• ffmpeg -i toystory.mp4 -i n.jpeg -filter_complex overlay o.mp4 ( https://www.cnblogs.com/ranson7zop/p/7728639.html )

• ffplay -i toystory.mp4 -vf drawbox=10:20:200:60:red@0.5;fade=t=in:st=5.5:d=0.5

• ffmpeg -i toystory.mp4 -vf "split [main][tmp]; [tmp] crop=iw:ih/2:0:0, vflip [flip]; [main][flip] overlay=0:H/2" o.mp4

• ffplay -i toystory.mp4 -vf "split [a][b]; [a]pad=2*iw[1]; [b]hflip[2]; [1][2]overlay=w"

• ffplay -i t.mp4 -vf "split [main][tmp]; [tmp] crop=iw:ih/2:0:0, vflip [flip]; [main][flip] overlay=0:H/2"

• ffplay -i t.mp4 -vf "boxblur=luma_radius=3:luma_power=1"

Text

ffmpeg -i output/1.mp4 -vf "format=yuv444p,
drawbox=y=ih/PHI:color=black@0.4:width=iw:height=48:t=fill,
drawtext=fontfile=/home/ym/mc/transition/open-sans/OpenSans-Regular.ttf:text='Title of this Video':fontcolor=white:fontsize=24:x=(w-tw)/2:y=(h/PHI)+th,
format=yuv420p" -c:v libx264 -c:a copy -movflags +faststart 1.mp4

https://www.1001fonts.com/open-sans-font.html

【xfade】FFmpeg的31种转场滤镜效果