H.264 - Codec: Extra Settings

Trellis

Enable trellis searched quantization.

Macroblock provides a good compromise between speed and efficiency.

• Disabled
• Final MB (only on the final encode of a macroblock )
• Always (on all mode decisions )

CABAC

CABAC (Context Adaptive Binary Arithmetic Coding) a method of encoding stream syntax which results in high compression

No DCT Decimation

Disables DCT block decimation.

No Fast PSkip

Disables p-frame skip detection - slightly increases quality, particularly in low detail areas, such as dark walls and sky.

PSNR

Enables PSNR calculations that are reported on completion at the cost of a small decrease in speed

SSIM

Enables SSIM calculations that are reported on completion at the cost of a small decrease in speed