Skip to content

Latest commit

 

History

History
34 lines (27 loc) · 1000 Bytes

nflx_ctc.md

File metadata and controls

34 lines (27 loc) · 1000 Bytes
Raw

NFLX CTC

Metrics

Using the versioned --nflx_ctc preset, the following metrics will be computed and logged. These metrics are specified according to the NFLX CTC.

  • PSNR
  • APSNR
  • SSIM
  • VMAF
  • VMAF NEG
  • CAMBI

Usage

Basic usage of the tool is described in the vmaf README. Use the versioned --nflx_ctc presets to register and configure all metrics according to the NFLX CTC. Basic usage is as follows:

./build/tools/vmaf  \
    --reference reference.y4m \
    --distorted distorted.y4m \
    --nflx_ctc v1.0 \
    --json \
    --output output.json

There are also a few optional command-line settings you may find useful.

  • Use --threads to set the thread count to be used for multi-threaded computation. This will decrease the overall latency.

Output

JSON logging formats provide per-frame metrics, pooled metrics, and aggregate metrics.

NFLX CTC Version History

  • v1.0: --nflx_ctc v1.0
    • 2023-01-01
    • Initial CTC release