[FFmpeg-user] How to the use vf_drawtext.c in my program

[Andrey Utkin]

2012/3/6 ajaxhe <ajaxhe at gmail.com>:
> Now, I want to add the system datetime information in per video frame, then
> store as a .mp4 file. I have known vf_drawtext.c can finish this task, but
> any examples to introduce the usage of APIs in drawtext.c?

http://git.videolan.org/?p=ffmpeg.git;a=blob;f=doc/examples/filtering_video.c;h=2ca6a0549712c8ae4f780570ae3e72c7d151b933;hb=refs/heads/master

-- 
Andrey Utkin