Enum QSVH264LookAheadDownsampling
- Namespace
- VisioForge.Core.Types.FFMPEGEXE
- Assembly
- VisioForge.Core.dll
Enum for Intel QSV Look Ahead Downsampling options, determining the downscaling factor for frames. Controls how frames are downscaled during look-ahead analysis to reduce memory usage and improve performance. Look-ahead analysis examines future frames to optimize encoding decisions.
public enum QSVH264LookAheadDownsamplingFields
Unknown = 0-
Unknown downscaling factor. Let the Intel driver choose the appropriate downsampling based on resolution and performance.
Off = 1-
No downscaling. Full resolution analysis provides best quality but requires more memory and processing. Recommended for content where quality is paramount and system resources are abundant.
TwoTimes = 2-
Downscale by 2x. Analyzes frames at half resolution (1/4 pixels), balancing quality and performance. Good compromise for 1080p and higher resolution content. Reduces memory usage by approximately 75%.
FourTimes = 3-
Downscale by 4x. Analyzes frames at quarter resolution (1/16 pixels) for maximum performance. Suitable for 4K content or when encoding speed is prioritized over quality. Reduces memory usage by approximately 94%.