Transform Buffer Sizes

• Buffer Sizes for CFFT
  • riscv_cfft_tmp_buffer_size()
  • riscv_cfft_output_buffer_size()
  • riscv_cifft_output_buffer_size()
• Buffer Sizes for RFFT
  • riscv_rfft_tmp_buffer_size()
  • riscv_rfft_output_buffer_size()
  • riscv_rifft_input_buffer_size()
• Buffer Sizes for MFCC
  • riscv_mfcc_tmp_buffer_size()

group Transform Buffer Sizes

Functions to get the sizes of the buffers in the different transform functions according to the datatype and target architecture.

The current architecture for the build is defined in RISCV_MATH_DEFAULT_TARGET_ARCH

Note

All returned lengths are in real numbers and never in complex. So, for a complex buffer of S samples, the returned length will be 2*S.