Overview

Converts a floating point number to a 16-bit short after applying a scaling factor.

Dispatcher Prototype

void volk_32f_s32f_convert_16i(int16_t* outputVector, const float* inputVector, const
float scalar, unsigned int num_points) 

Inputs

• inputVector: the input vector of floats.
• scalar: The value multiplied against each point in the input buffer.
• num_points: The number of data points.

Outputs

• outputVector: The output vector.

Example Convert floats from [-1,1] to 16-bit integers with a scale of 5 to maintain smallest delta int N = 10; unsigned int alignment = volk_get_alignment(); float* increasing = (float*)volk_malloc(sizeof(float)*N, alignment); int16_t* out = (int16_t*)volk_malloc(sizeof(int16_t)*N, alignment);

for(unsigned int ii = 0; ii < N; ++ii){ increasing[ii] = 2.f * ((float)ii / (float)N) - 1.f; }

// Normalize by the smallest delta (0.2 in this example) float scale = 5.f;

volk_32f_s32f_convert_32i(out, increasing, scale, N);

for(unsigned int ii = 0; ii < N; ++ii){ printf("out[%u] = %i\n", ii, out[ii]); }

volk_free(increasing); volk_free(out);