How to add transparent watermark in center of a video with ffmpeg? -

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i using these commands:

top left corner ffmpeg –i inputvideo.avi -vf "movie=watermarklogo.png [watermark]; [in][watermark] overlay=10:10 [out]" outputvideo.flv  top right corner ffmpeg –i inputvideo.avi -vf "movie=watermarklogo.png [watermark]; [in][watermark] overlay=main_w-overlay_w-10:10 [out]" outputvideo.flv  bottom left corner ffmpeg –i inputvideo.avi -vf "movie=watermarklogo.png [watermark]; [in][watermark] overlay=10:main_h-overlay_h-10 [out]" outputvideo.flv  bottom right corner ffmpeg –i inputvideo.avi -vf "movie=watermarklogo.png [watermark]; [in][watermark] overlay=(main_w-overlay_w-10)/2:(main_h-overlay_h-10)/2 [out]" outputvideo.flv

how place watermark center of video ?

examples overlay/watermark image on video:

centered

enter image description here

ffmpeg -i input.mp4 -i logo.png -filter_complex \ "overlay=(main_w-overlay_w)/2:(main_h-overlay_h)/2" \ -codec:a copy output.mp4

or shortened overlay options:

overlay=(w-w)/2:(h-h)/2

top left

this easy 1 because default, if provide no options overlay, place image in top left.

this example adds 5 pixels of padding image not touching edges:

overlay=5:5

top right

with 5 pixels of padding:

overlay=main_w-overlay_w-5:5

or shortened options:

overlay=w-w-5:5

bottom right

with 5 pixels of padding:

overlay=main_w-overlay_w-5:main_h-overlay_h-5

or shortened options:

overlay=w-w-5:h-h-5

bottom left

with 5 pixels of padding:

overlay=5:main_h-overlay_h

or shortened options:

overlay=5:h-h-5

notes

  • the audio stream copied (remuxed) in example -codec:a copy instead of being re-encoded. may have re-encode depending on output container format.

  • see documentation on overlay video filter more information , examples.

  • see ffmpeg h.264 video encoding guide more information on getting quality output.

  • if image being overlaid rgb colorspace (such png images) may see visual improvement if add format=rbg overlay. note if and if you're outputting h.264, have add format=yuv420p (this filer–it different named option in overlay filter). may this:

    overlay=5:h-h-5:format=rgb,format=yuv420p

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