Allocate and initialize a fixed DSP context.

note: should be freed with a av_free call when no longer needed.

Parameters

strict setting to non-zero avoids using functions which may not be IEEE-754 compliant

Definition at line 151 of file fixed_dsp.c.

Referenced by ac3_decode_init(), ac3_fixed_mdct_init(), checkasm_check_fixed_dsp(), ff_aac_decode_init_fixed(), and ff_dca_core_init().

Definition at line 43 of file fixed_dsp_init.c.

Referenced by avpriv_alloc_fixed_dsp().

Definition at line 26 of file fixed_dsp_init.c.

Referenced by avpriv_alloc_fixed_dsp().

Calculate the square root.

Parameters

x input fixed point number

bits format of fixed point number (32 - bits).bits

note: input is normalized to (0, 1) fixed point value

Definition at line 176 of file fixed_dsp.h.

Referenced by decode_spectrum_and_dequant(), and spx_coordinates().