The 10 values are the paddings!
Top left
ffmpeg –i source.avi -vf "movie=watermark.png [watermark]; [in][watermark] overlay=10:10 [out]" output.flv
Top right
ffmpeg –i source.avi -vf "movie=watermark.png [watermark]; [in][watermark] overlay=main_w-overlay_w-10:10 [out]" output.flv
Bottom left
ffmpeg –i source.avi -vf "movie=watermark.png [watermark]; [in][watermark] overlay=10:main_h-overlay_h-10 [out]" output.flv
Bottom right
ffmpeg –i source.avi -vf "movie=watermark.png [watermark]; [in][watermark] overlay=main_w-overlay_w-10:main_h-overlay_h-10 [out]" output.flv
Center?
ffmpeg –i source.avi -vf “movie=watermark.png [watermark]; [in][watermark] overlay=main_w/2-overlay_w/2:main_h/2-overlay_h/2 [out]” output.flv
How can I extract the first frame from a movie AND overlay a watermark on it at the same time?
ffmpeg -i movie.mp4 -i image.png
-filter_complex
"[0]scale=W:H:force_original_aspect_ratio=decrease[v];
[v][1]overlay=(W-w)/2:(H-h)/2"
-vframes 1 output.jpg
