New DSV revision

[LMP88959]

Arguably the biggest update to DSV2 thus far.
It adds a number of new features and improvements including but not limited to:

• Better and faster motion estimation through better candidate MV selection and reducing diagonal searches
• Better rate control
• More accurate inter/intra mode decision and RDO
• Per-frame motion compensation filter switching for visually superior subpixel motion with simpler filters
• Intra frame deringing filter
• Inter frame cleanup filter
• Fast local de-gradient / sharpening filter to reduce blurriness
• Haar is used at L3 rather than a longer filter now to reduce both ringing artifacts and also increase sharpness
• Simplified HZCC a bit
• Optional wavelet dithering
• Refactored decoding code

[R1chterScale]

Very much looking forward to seeing the results of this. This project has been genuinely inspirational and I hope to someday replicate it.

[LMP88959]

Thank you, currently working on it! I am excited to share it as well