8.32

• Add VA-API encoding support on Linux. (--backend)
• Relax deb package dependencies so it can be installed on VA-API-only systems.
• Disable --la-depth in ICQ mode. ICQ with LookaheadDepth can stall before encode starts on some Intel graphics drivers. ( #315 )
• Synchronize MFX VPP output before encode on Linux VA memory, fixing old frames mixed in by color conversion and same-format resize. ( #308 )
• Improve CPU utilization information on Linux systems.
• Fix TrueHD audio timestamp calculation. ( rigaya/NVEnc#805 )
• Optimize --vpp-rtgmc search-prefilter. Exclude the repair path from the program when it is unused (about 8x), and inline it for profiles with small expansion.
• Reduce host sync waits in --vpp-kfm so GPU submission stays continuous.
• Optimize motion search in --vpp-degrain.
• Reduce --vpp-nnedi output initialization to the kept field on processed planes.
• Use the subgroup predictor in --vpp-nnedi even when the auto-selected SIMD width is not 16 or 32.
• Deepen the encoder output queue so encode waits overlap filter processing.
• Fix missing completion events for interlaced --vpp-resize, and fix --vpp-rtgmc-search-prefilter search_refine=3 producing 0 frames.
• Fix crush when using OpenCL vpp filters with --output-csp yuv444. ( #311 )