I'm just getting starting with FFMPEG & i have a little problem. I have two videos. One is overlay on the left top corner of the other one. Now that I have that, I'm trying to put the small video on top Black & White. I could do it separatly, but i'd like to do it in one line, if possible.
I was able to put the background video (video0.mp4) black&white with this code:
-i video0.mp4 -i video1.mp4 -filter_complex “[0] hue=s=0 [ok] ; [ok] [1] overlay=x=25 : y=25[out] ; [out] scale=1280:720 [final]” -map “[final]” -t 10 -c:v libx264 -b:v 1500k -f mp4 try10.mp4
And i was able to put all videos black&white with his code:
-i video0.mp4 -i video1.mp4 -filter_complex “[0] [1] overlay=x=25 : y=25, hue=s=0 [out] ; [out] scale=1280:720 [final]” -map “[final]” -t 10 -c:v libx264 -b:v 1500k -f mp4 try10.mp4
I'm just changing place of the hue=s=0, but i can find the good place so that it is my video1.mp4 that is black&white and not the video0.mp4
Hope i'm clear enough! Thanks for your help!
I think you are virtually there already. It should look like
-i video0.mp4 -i video1.mp4 \
-filter_complex “[1]hue=s=0[ok]; \
[0][ok]overlay=x=25:y=25,scale=1280:720 [final]” \
-map “[final]” -t 10 -c:v libx264 -b:v 1500k -f mp4 try10.mp
Basically, pass the 2nd stream [1] to hue and swap the overlay input.