NDI Encoding Support Matrix

SpeedHQ

CODEC	SpeedHQ0 4:2:0 8bit	SpeedHQ2 4:2:2 8bit	SpeedHQ2 4:2:2 10bit	SpeedHQ7 4:2:2:4 8bit	SpeedHQ7 4:2:2:4 10bit
FPGA Encoding²	YES	YES	YES	YES	YES
FPGA Decoding	YES	YES	YES	YES	YES
Hardware Video Encoder (VCU)	NO	NO	NO	NO	NO
Hardware Video Decoder	NO	NO	NO	NO	NO
Software Encoding	YES	YES	YES	YES	YES
Software Decoding	YES	YES	YES	YES	YES

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HX

CODEC	HX (v1) H.264 4:2:0 8bit	HX (v2) H.264 4:2:0 8bit	HX (v2) H.265 4:2:0 8bit	HX (v2) H.265 4:2:0 10bit	HX3 H.264 4:2:0 8bit	HX3 H.265 4:2:0 8bit	HX3 H.265 4:2:0 10bit
FPGA Encoding²	NO	NO	NO	NO	NO	NO	NO
FPGA Decoding	NO	NO	NO	NO	NO	NO	NO
Hardware Video Encoder (VCU)	NO	YES	YES	YES	YES	YES	YES
Hardware Video Decoder	YES	YES	YES	YES	YES	YES	YES
Software Encoding	NO	YES	YES	YES	YES	YES	YES
Software Decoding	YES	YES	YES	YES	YES	YES	YES

The FPGA implementations include a SpeedHQ codec in the FPGA fabric for speed, but can also use the same software codec as the regular SDK. Typically, the ARM CPU cores on the FPGA+SoC devices are slow enough that decoding video in software is impractical, but this is gradually changing as everything gets faster. (Charles Steinkuehler)