mirror of
				https://gitlab.freedesktop.org/pipewire/pipewire.git
				synced 2025-11-03 09:01:54 -05:00 
			
		
		
		
	SPDX tags make the licensing information easy to understand and clear, and they are machine parseable. See https://spdx.dev for more information.
		
			
				
	
	
		
			157 lines
		
	
	
	
		
			2.8 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			157 lines
		
	
	
	
		
			2.8 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
/* Spa */
 | 
						|
/* SPDX-FileCopyrightText: Copyright © 2019 Wim Taymans */
 | 
						|
/* SPDX-License-Identifier: MIT */
 | 
						|
 | 
						|
#include <string.h>
 | 
						|
#include <stdio.h>
 | 
						|
#include <stdlib.h>
 | 
						|
#include <unistd.h>
 | 
						|
#include <errno.h>
 | 
						|
#include <time.h>
 | 
						|
 | 
						|
#include <spa/support/log-impl.h>
 | 
						|
#include <spa/debug/mem.h>
 | 
						|
 | 
						|
SPA_LOG_IMPL(logger);
 | 
						|
 | 
						|
#include "resample.h"
 | 
						|
 | 
						|
#define N_SAMPLES	253
 | 
						|
#define N_CHANNELS	11
 | 
						|
 | 
						|
static float samp_in[N_SAMPLES * 4];
 | 
						|
static float samp_out[N_SAMPLES * 4];
 | 
						|
 | 
						|
static void feed_1(struct resample *r)
 | 
						|
{
 | 
						|
	uint32_t i;
 | 
						|
	const void *src[1];
 | 
						|
	void *dst[1];
 | 
						|
 | 
						|
	spa_zero(samp_out);
 | 
						|
	src[0] = samp_in;
 | 
						|
	dst[0] = samp_out;
 | 
						|
 | 
						|
	for (i = 0; i < 500; i++) {
 | 
						|
		uint32_t in, out;
 | 
						|
 | 
						|
		in = out = 1;
 | 
						|
		samp_in[0] = i;
 | 
						|
		resample_process(r, src, &in, dst, &out);
 | 
						|
		fprintf(stderr, "%d %d %f %d\n", i, in, samp_out[0], out);
 | 
						|
	}
 | 
						|
}
 | 
						|
 | 
						|
static void test_native(void)
 | 
						|
{
 | 
						|
	struct resample r;
 | 
						|
 | 
						|
	spa_zero(r);
 | 
						|
	r.log = &logger.log;
 | 
						|
	r.channels = 1;
 | 
						|
	r.i_rate = 44100;
 | 
						|
	r.o_rate = 44100;
 | 
						|
	r.quality = RESAMPLE_DEFAULT_QUALITY;
 | 
						|
	resample_native_init(&r);
 | 
						|
 | 
						|
	feed_1(&r);
 | 
						|
	resample_free(&r);
 | 
						|
 | 
						|
	spa_zero(r);
 | 
						|
	r.log = &logger.log;
 | 
						|
	r.channels = 1;
 | 
						|
	r.i_rate = 44100;
 | 
						|
	r.o_rate = 48000;
 | 
						|
	r.quality = RESAMPLE_DEFAULT_QUALITY;
 | 
						|
	resample_native_init(&r);
 | 
						|
 | 
						|
	feed_1(&r);
 | 
						|
	resample_free(&r);
 | 
						|
}
 | 
						|
 | 
						|
static void pull_blocks(struct resample *r, uint32_t first, uint32_t size)
 | 
						|
{
 | 
						|
	uint32_t i;
 | 
						|
	float in[SPA_MAX(size, first) * 2];
 | 
						|
	float out[SPA_MAX(size, first) * 2];
 | 
						|
	const void *src[1];
 | 
						|
	void *dst[1];
 | 
						|
	uint32_t in_len, out_len;
 | 
						|
	uint32_t pin_len, pout_len;
 | 
						|
 | 
						|
	src[0] = in;
 | 
						|
	dst[0] = out;
 | 
						|
 | 
						|
	for (i = 0; i < 500; i++) {
 | 
						|
		pout_len = out_len = i == 0 ? first : size;
 | 
						|
		pin_len = in_len = resample_in_len(r, out_len);
 | 
						|
 | 
						|
		resample_process(r, src, &pin_len, dst, &pout_len);
 | 
						|
 | 
						|
		fprintf(stderr, "%d: %d %d %d %d %d\n", i,
 | 
						|
				in_len, pin_len, out_len, pout_len,
 | 
						|
				resample_in_len(r, size));
 | 
						|
 | 
						|
		spa_assert_se(in_len == pin_len);
 | 
						|
		spa_assert_se(out_len == pout_len);
 | 
						|
	}
 | 
						|
}
 | 
						|
 | 
						|
static void test_in_len(void)
 | 
						|
{
 | 
						|
	struct resample r;
 | 
						|
 | 
						|
	spa_zero(r);
 | 
						|
	r.log = &logger.log;
 | 
						|
	r.channels = 1;
 | 
						|
	r.i_rate = 32000;
 | 
						|
	r.o_rate = 48000;
 | 
						|
	r.quality = RESAMPLE_DEFAULT_QUALITY;
 | 
						|
	resample_native_init(&r);
 | 
						|
 | 
						|
	pull_blocks(&r, 1024, 1024);
 | 
						|
	resample_free(&r);
 | 
						|
 | 
						|
	spa_zero(r);
 | 
						|
	r.log = &logger.log;
 | 
						|
	r.channels = 1;
 | 
						|
	r.i_rate = 44100;
 | 
						|
	r.o_rate = 48000;
 | 
						|
	r.quality = RESAMPLE_DEFAULT_QUALITY;
 | 
						|
	resample_native_init(&r);
 | 
						|
 | 
						|
	pull_blocks(&r, 1024, 1024);
 | 
						|
	resample_free(&r);
 | 
						|
 | 
						|
	spa_zero(r);
 | 
						|
	r.log = &logger.log;
 | 
						|
	r.channels = 1;
 | 
						|
	r.i_rate = 48000;
 | 
						|
	r.o_rate = 44100;
 | 
						|
	r.quality = RESAMPLE_DEFAULT_QUALITY;
 | 
						|
	resample_native_init(&r);
 | 
						|
 | 
						|
	pull_blocks(&r, 1024, 1024);
 | 
						|
	resample_free(&r);
 | 
						|
 | 
						|
	spa_zero(r);
 | 
						|
	r.log = &logger.log;
 | 
						|
	r.channels = 1;
 | 
						|
	r.i_rate = 44100;
 | 
						|
	r.o_rate = 48000;
 | 
						|
	r.quality = RESAMPLE_DEFAULT_QUALITY;
 | 
						|
	resample_native_init(&r);
 | 
						|
 | 
						|
	pull_blocks(&r, 513, 64);
 | 
						|
	resample_free(&r);
 | 
						|
}
 | 
						|
 | 
						|
int main(int argc, char *argv[])
 | 
						|
{
 | 
						|
	logger.log.level = SPA_LOG_LEVEL_TRACE;
 | 
						|
 | 
						|
	test_native();
 | 
						|
	test_in_len();
 | 
						|
 | 
						|
	return 0;
 | 
						|
}
 |