Enable trellis searched quantization.
Macroblock provides a good compromise between speed and efficiency.
CABAC (Context Adaptive Binary Arithmetic Coding) a method of encoding stream syntax which results in high compression
Disables p-frame skip detection - slightly increases quality, particularly in low detail areas, such as dark walls and sky.
Disables DCT block decimation.
Enables PSNR calculations that are reported on completion at the cost of a small decrease in speed
Enables SSIM calculations that are reported on completion at the cost of a small decrease in speed