video_editing_poc/docs/ffmpeg-preset-benchmark-baseline.md

FFmpeg Preset Benchmark Baseline

Methodology:

• Real ffmpeg execution through FfmpegVideoClipperAdapter
• Synthetic 16-second 1280x720 input generated with testsrc
• EXACT mode with 8-second segmentation
• Presets compared: ultrafast, veryfast, medium

Rerun command:

mvn -q -Dtest=FfmpegPresetBenchmarkHarness test

Generated report source:

• target/benchmarks/ffmpeg-preset-benchmark.md

Baseline results:

Preset	Clip Count	Wall ms	Output Bytes
ultrafast	2	1610.05	1098215
veryfast	1	1892.61	507360
medium	1	2507.86	533768

Notes:

• This benchmark is intended as a reproducible local baseline, not a production throughput claim.
• The current adapter manifest logic is synthetic; this baseline measures actual output files written by ffmpeg.