- 在指定区域画一个方框 drawbox
-vf drawbox=x=174:y=466:w=420:h=100:color=red
举例:
ffmpeg_new_master -i /home/bunny.mp4 -vf drawbox=x=100:y=100:w=50:h=50:color=red:thickness=1 -vframes 600 -y out2.mp4
thickness是边框的大小 默认是4
- 绘制字体时 显示所在区域 :box=1
drawtext=fontcolor=#ffff80:fontsize=85:fontfile=test.otf:line_spacing=10:text='hello':x=174:y=466:box=1
