I think it would be very useful to compile a list of what encoding performance we can achieve with our systems, however for we need a good source that would push AV1 to it's limits.
Requirements :
Should be quite short, around 1 minute for acceptable benchmark time.
Has to contain a wide array of scenes, such as tree leaves, fast moving objects, dark scenes with gradual lighting, wide array of colors, confetti or snow scene, noisy image, text, animation (Other suggestions what a should should contain are highly welcome).
Resolution, about this I am not so sure, maybe 1080p or we could divide it into 720p, 1080p and 4k, but it would be better to stick to one file to remove any additional confusion for new users, however this decision is not final.
Source file should be very high quality, near transparent, or completely lossless.
It should be royalty free for legal reasons.
I am waiting for your opinions about this, and how we could solve the lack of benchmarking information. When the source file is found, we will later decide on what settings it should be encoded.