Take the tour ×  Is there a Windows program that can convert a
bunch of videos and output in FLV format as well as include a
watermark?  share|improve this question possible duplicate of
Watermarking FLV videos on Ubuntu –  KronoS Jan 25 at 5:45 add
comment  4 Answers  The correct way to do this with recent
ffmpeg is to use the overlay filter. The following command will
place watermark.png on top of input.flv, with the upper-left
corner of the watermark fifteen pixels to the right and ten
pixels down from the upper-left corner of the main video:
ffmpeg -i input.flv -i watermark.png -filter_complex \
'[0:v][1:v]overlay=15:10[outv]' -map [outv] -map 0:a \
Obviously, change 15 or 10 to whatever values you want.  There
are also a few constants you may find useful, if you're putting
watermarks on multiple videos with separate resolutions:    • W
and H are the width and height of the main video (input.flv)   •
w and h are the width and height of the overlay video
(watermark.png)  These can come in handy many time