#include <stdlib.h>
#include <string.h>
#include <mossrose.h>
#include "sound.h"


int sound_copy(struct mossrose_sound_t *dest, struct mossrose_sound_t *src)
{
	sound_free_audio(dest);
	dest->len = src->len;
	
	/* left channel */
	if (src->left != NULL) {
		dest->left = malloc(src->len * sizeof(float));
		if (dest->left == NULL) return 1;
		memcpy(dest->left, src->left, src->len * sizeof(float));
	}
	else
		dest->left = NULL;

	/* right channel */
	if (src->right != NULL) {
		dest->right = malloc(src->len * sizeof(float));
		if (dest->right == NULL) return 1;
		memcpy(dest->right, src->right, src->len * sizeof(float));
	}
	else
		dest->right = NULL;

	return 0;
}


void sound_free_audio(struct mossrose_sound_t *sound)
{
	if (sound->left == NULL) {
		free(sound->left);
		sound->left = NULL;
	}
	if (sound->right == NULL) {
		free(sound->right);
		sound->right = NULL;
	}
}