FFMPEG.gist

# Convert WMV to MP4 with fixed FPS(30)
ffmpeg -i input_file.wmv -c:v libx264 -crf 23 -c:a aac -strict -2 -q:a 100 -max_muxing_queue_size 9999 -filter:v fps=fps=30 output_file.mp4
# Negate (Invert Colours)
ffmpeg -i input_file.mp4 -vf negate outputfile.mp4
# Add Watermark at bottom right corner | Note: Watermark does not scale, to adjust size of watermark, adjust size of input image
ffmpeg -i negated.mp4 -i tlm.png -filter_complex "[1]format=yuva444p,colorchannelmixer=aa=0.2[tlm.png];[0][tlm.png]overlay=x=(main_w-overlay_w):y=(main_h-overlay_h)" watermarked.mp4

# Combined Commands
# Convert WMV to Inverted MP4
ffmpeg -i inputfile.wmv -c:v libx264 -crf 23 -c:a aac -strict -2 -q:a 100 -max_muxing_queue_size 9999 -filter:v "fps=fps=30, negate=1" output_file.mp4

# All 3 Filters Combined -> Convert, Negate and Watermark
ffmpeg -i source.wmv -i logo.png -c:v libx264 -crf 23 -c:a aac -strict -2 -q:a 100 -max_muxing_queue_size 9999 -filter_complex "[1]format=yuva444p,colorchannelmixer=aa=0.8[logo];[0]fps=fps=30, negate=1[flip];[flip][logo]overlay=x=(main_w-overlay_w):y=(main_h-overlay_h)" output_file.mp4

# Concatenation
ffmpeg -f concat -i mylist.txt -c copy output.mp4

# Wrap Intro Clip without Audio for Concatenation
ffmpeg -i intro.mp4 -f lavfi -i anullsrc -c:v copy -video_track_timescale 30k -c:a aac -ac 6 -ar 44100 -shortest new.mp4