Add watermark to FFmpeg

Add watermark fengyuzaitu in the upper left corner

Ffmpegd.exe-I video.mp4-vf drawtext=fontfile=arial.ttf:text=fengyuzaitu output.mp4

Add watermark fengyuzaitu in the center

Ffmpegd.exe-I video.mp4-vf drawtext=fontfile=arial.ttf:x=w/2:y=h/2:text=fengyuzaitu output.mp4

Specify watermark color and width

Ffmpegd.exe-I video.mp4-vf drawtext=fontfile=arial.ttf:x=w/2:y=h/2:fontsize=24:fontcolor=yellow:text=fengyuzaitu output.mp4

Add the current timestamp

Ffmpegd.exe-I video.mp4-vf drawtext= "fontfile=arial.ttf:text='% {localtime\:% H\\:% M\:% S}'" output.mp4

Encounter problems

[Parsed_drawtext_0 @ 0000015FE818EE80] Cannot find a valid font for the family Sans

[AVFilterGraph @ 0000015FE6473A80] Error initializing filter 'drawtext' with args' fontfile=arial.ttf:text=fengyuzaitu'

Error reinitializing filters!

Failed to inject frame into filter network: No such file or directory

Error while processing the decoded data for stream # 0:1

Solve

Copy the required fonts from the C:\ Windows\ Fonts directory to the directory where the program executes