view libtest/pcmwrite.c @ 199:b4531e7227ca

libgsmefr/pitch_ol.c: perf opt
author Mychaela Falconia <falcon@freecalypso.org>
date Wed, 04 Jan 2023 04:23:07 +0000
parents a3aa152c4653
children
line wrap: on
line source

/*
 * Here we implement our PCM write helper function.
 */

#include <stdint.h>
#include "wavwriter.h"
#include "pcmwrite.h"

void write_pcm_to_wav(void *wav, const int16_t *pcm)
{
	uint8_t bytes[320], *dp;
	int16_t samp;
	unsigned n;

	dp = bytes;
	for (n = 0; n < 160; n++) {
		samp = pcm[n];
		*dp++ = samp & 0xFF;
		*dp++ = (samp >> 8) & 0xFF;
	}
	wav_write_data(wav, bytes, 320);
}