time ffmpeg -i input.mp4 -c:v libx264 -preset ultrafast -f null - Then compare with:
ffmpeg -i input.mp4 -i logo.png -filter_complex \ "[0:v]crop=1920:800:0:140,rotate=90*PI/180,setpts=PTS+2/TB[v0]; \ [1:v]scale=200:-1[logo]; \ [v0][logo]overlay=W-w-10:H-h-10,drawtext=text='Superman FFmpeg':x=10:y=10:fontsize=24:fontcolor=white" \ -c:a copy output.mp4 Preserve all quality for editing (intermediate codec): ffmpeg -i input.mp4 -c:v ffv1 -coder 1 -context 1 -g 1 -slices 24 -c:a pcm_s16le intermediate.mkv High-quality HEVC with 10-bit color : ffmpeg -i input.mp4 -c:v libx265 -pix_fmt yuv420p10le -crf 15 -preset slow -x265-params "aq-mode=3:no-sao=1" output.mkv 6. Debugging “Kryptonite” Issues | Problem | Solution | |---------|----------| | GPU encoder looks blocky | Add -cq 18 (constant quality) or -b:v 10M (higher bitrate) | | Filter chain too slow | Use -filter_complex with -map instead of multiple -vf | | Out of memory on 8K | -max_muxing_queue_size 1024 -threads 2 | | Audio desync | -async 1 -vsync cfr | 7. Benchmarking Your Superman Setup Run this to test raw decode+encode speed (no filters): superman ffmpeg