I have a ffmpeg command that plays several videos from a folder to a live stream, but I would also like to add text overlays over it. The problem is that I used complex filter to concatenate the videos, and -vf to drawtext, but ffmpeg says I can't use complex filters and -vf in the same time. I can't use another method for concatenation, so how should I do ? (I don't mind about using several commands, as long as everything is done live and can be streamed directly)
By the way, here's an example command I use :
ffmpeg \ -i video1.mp4 -i video2.mp4 -filter_complex "[0:v:0] [0:a:0] [0:v:1] [0:a:1] concat=n=2:v=1:a=1 [v] [a]" \ -vf "drawtext=text='SOME TEXT':x=(w-text_w):y=(h-text_h):fontfile=OpenSans.ttf:fontsize=30:fontcolor=white" \ -map "[v]" -map "[a]" -deinterlace \ -vcodec libx264 -pix_fmt yuv420p -preset $QUAL -r $FPS -g $(($FPS * 2)) -b:v $VBR \ -acodec libmp3lame -ar 44100 -threads 6 -qscale 3 -b:a 712000 -bufsize 512k \ -f flv "$YOUTUBE_URL/$KEY"
The problem only comes from the -vf because it works well without it.