mp4 -filter_complex 'pad=w=2*iw hflip overlay=x=w' output.

# Delete logo using delogo filterįfmpeg =i input. mp4 -vf delogo =x = 806 :y = 20 :w = 70 :h = 80 :show = 1 # x,y denotes the upper-left coordinates of logo, w,h denotes the width and height of logo. # - In vf, move specifies the location of logo, scale specifies the size of logo, overlay specifies the location of logo (upper left coordinate of logo), x as 30,y as 10 # Delete watermarking # Find the logo to delete through ffplay firstįfplay -i input. Add/Delete Watermarking to Video # Watermarkingįfmepg -i input. # In the above methods, the audio stream will not change, so - an is disabled. # Change the playback speed of the video to twice the original speedįfmpeg -i input. mp4 -r 16 - filter :v 'setpts=0.25PTS' -an out. # For example, from the input of 4 FPS to the input of accelerating 4 times (16 FPS):įfmpeg -i input. # The loss of frames can be avoided by setting a higher output frame rate than input. # Note: This method uses frame loss to achieve the required playback speed.

# The filter changes the playback speed of the video by changing the rendering time stamp (PTS) of the video frame. mp4 - filter :v 'setpst=0.5*PTS' -an out. Changing the Speed of Video Playing # Double the playback speed of the videoįfmpeg -i input. # For example, for the above clipping requirement, we only need to keep the middle part of the phase video, so x does not need to be offset, so the input is 0, and y needs country offset: (1920-1080)/ 2 = 420.ħ. Crop=width:height:x:y where width and height denote the size of the clipped video, and x:y denotes the upper-left coordinates of the reference area.

Ffmpeg filter stretching