ffmpeg -i original.mp4 -vf "drawtext=text='© YourName %{pts\:hms}':fontsize=24:fontcolor=white:x=10:y=10" -codec:a copy watermarked.mp4
# Detect original aspect ratio ffprobe -v error -select_streams v:0 -show_entries stream=display_aspect_ratio -of default=noprint_wrappers=1 input.mp4 ffmpeg -i input.mp4 -vf "pad=1920:1080:(ow-iw)/2:(oh-ih)/2,setdar=16/9" output_fixed.mp4 2. Retribution Against Speed Manipulation (Time Stamps Restoration) Reverse slow-motion or fast-forward edits back to original duration using setpts . retribution ffmpeg
# Subtract manipulated region using a reference image ffmpeg -i manipulated.mp4 -i original_logo.png -filter_complex "overlay=10:10" output_with_logo.mp4 Note: Requires original logo position. For blind recovery, use delogo with x/y/w/h of the blurred area to attempt inverse. Embed an invisible traceable ID before distribution. Later, extract it to prove ownership. ffmpeg -i original
# If video was sped up 2x → restore to normal speed ffmpeg -i manipulated.mp4 -filter:v "setpts=2*PTS" -filter:a "atempo=0.5" restored.mp4 ffmpeg -i manipulated.mp4 -filter:v "setpts=0.5*PTS" -filter:a "atempo=2.0" restored.mp4 3. Retribution Against Logo/Watermark Removal (Recover Overlay) If a logo was blurred or covered, use a reference clean frame to subtract the modification. For blind recovery, use delogo with x/y/w/h of
#!/bin/bash for file in *.mp4; do ffmpeg -i "$file" -vf "drawtext=text='UNAUTHORIZED USE - TAKEDOWN NOTICE':fontcolor=red:fontsize=48:x=(w-text_w)/2:y=h-100" -c:a copy "notice_$file" done Generate a frame-by-frame hash to prove a video was modified from original.