mendevi 1.2.3

Video encoding and decoding measures.

Useful links: Binary Installers | Source Repository | Online Documentation |

Description

This module performs energy and metrics measurements on video, for encoding and decoding. It also provides a detailed dataset.

It manages the following parameters:

1. It supports the libx264, libx265, libvpx-vp9, libsvtav1, librav1e and vvc encoders.

2. Distortions are measured using the lpips, psnr, ssim and vmaf metrics.

3. Complexity are measured using the rms_sobel and rms_time_diff metrics.

4. Encoding efforts are fast, medium and slow.

5. It takes care about the colorspaces.

6. Iterate over different effort, encoder, mode, quality, threads, fps, resolution and pix_fmt.

7. Energy measurements are catched with RAPL and an external wattmeter on grid'5000.

8. Get the cpu and ram activity.

9. Get a full environment context, including harware and software version.

10. It support the mode (constant bitrate) cbr and (constant quality) vbr.

Pipeline

This is the pipeline used for measurements:

Example of result

Example of rate distortion curve:

mendevi plot mendevi.db -x bitrate -y psnr -y ssim -wx profile -c encoder

Example of energy per encoder:

mendevi plot mendevi.db -x quality -y energy -wx profile -wy mode -c encoder -m effort

Alternatives

1. The MVCD database also includes video encoding and decoding energy measurements.

2. The COCONUT database also includes video decoding measurements.

3. The VEED-dataset offers a comprehensive LCA and GPU measurements.

4. The CTC videos are used for the tests.