spa: tests: Add an offline AEC benchmark

This commit is contained in:
Arun Raghavan 2025-10-06 17:51:16 -07:00 committed by Arun Raghavan
parent dcdb88d7b7
commit a4ec02f9d7
2 changed files with 403 additions and 6 deletions

390
spa/tests/benchmark-aec.c Normal file
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@ -0,0 +1,390 @@
/* Spa */
/* SPDX-FileCopyrightText: Copyright © 2025 Arun Raghavan */
/* SPDX-License-Identifier: MIT */
#include "config.h"
#include <dlfcn.h>
#include <fcntl.h>
#include <linux/limits.h>
#include <stdlib.h>
#include <stdint.h>
#include <stdio.h>
#include <string.h>
#include <sndfile.h>
#include <spa/debug/dict.h>
#include <spa/interfaces/audio/aec.h>
#include <spa/support/log.h>
#include <spa/support/log-impl.h>
#include <spa/support/loop.h>
#include <spa/support/plugin.h>
#include <spa/support/plugin-loader.h>
#include <spa/support/system.h>
#include <spa/utils/defs.h>
#include <spa/utils/json.h>
#include <spa/utils/names.h>
#include <spa/utils/result.h>
static SPA_LOG_IMPL(default_log);
struct data {
const char *plugin_dir;
struct spa_log *log;
struct spa_system *system;
struct spa_loop *loop;
struct spa_loop_control *control;
struct spa_loop_utils *loop_utils;
struct spa_plugin_loader *plugin_loader;
struct spa_support support[6];
uint32_t n_support;
struct spa_audio_aec *aec;
struct spa_handle *aec_handle;
uint32_t aec_samples;
};
static int load_handle(struct data *data, struct spa_handle **handle, const char *lib, const char *name)
{
int res;
void *hnd;
spa_handle_factory_enum_func_t enum_func;
uint32_t i;
char *path = NULL;
if ((path = spa_aprintf("%s/%s", data->plugin_dir, lib)) == NULL) {
return -ENOMEM;
}
if ((hnd = dlopen(path, RTLD_NOW)) == NULL) {
printf("can't load %s: %s\n", path, dlerror());
free(path);
return -errno;
}
free(path);
if ((enum_func = dlsym(hnd, SPA_HANDLE_FACTORY_ENUM_FUNC_NAME)) == NULL) {
printf("can't find enum function\n");
return -errno;
}
for (i = 0;;) {
const struct spa_handle_factory *factory;
if ((res = enum_func(&factory, &i)) <= 0) {
if (res != 0)
printf("can't enumerate factories: %s\n", spa_strerror(res));
break;
}
if (!spa_streq(factory->name, name))
continue;
*handle = calloc(1, spa_handle_factory_get_size(factory, NULL));
if ((res = spa_handle_factory_init(factory, *handle,
NULL, data->support,
data->n_support)) < 0) {
printf("can't make factory instance: %d\n", res);
return res;
}
return 0;
}
return -EBADF;
}
static int init(struct data *data)
{
int res;
const char *str;
struct spa_handle *handle = NULL;
void *iface;
if ((str = getenv("SPA_PLUGIN_DIR")) == NULL)
str = PLUGINDIR;
data->plugin_dir = str;
if ((res = load_handle(data, &handle,
"support/libspa-support.so",
SPA_NAME_SUPPORT_SYSTEM)) < 0)
return res;
if ((res = spa_handle_get_interface(handle, SPA_TYPE_INTERFACE_System, &iface)) < 0) {
printf("can't get System interface %d\n", res);
return res;
}
data->system = iface;
data->support[data->n_support++] = SPA_SUPPORT_INIT(SPA_TYPE_INTERFACE_System, data->system);
data->support[data->n_support++] = SPA_SUPPORT_INIT(SPA_TYPE_INTERFACE_DataSystem, data->system);
if ((res = load_handle(data, &handle,
"support/libspa-support.so",
SPA_NAME_SUPPORT_LOOP)) < 0)
return res;
if ((res = spa_handle_get_interface(handle, SPA_TYPE_INTERFACE_Loop, &iface)) < 0) {
printf("can't get interface %d\n", res);
return res;
}
data->loop = iface;
if ((res = spa_handle_get_interface(handle, SPA_TYPE_INTERFACE_LoopControl, &iface)) < 0) {
printf("can't get interface %d\n", res);
return res;
}
data->control = iface;
if ((res = spa_handle_get_interface(handle, SPA_TYPE_INTERFACE_LoopUtils, &iface)) < 0) {
printf("can't get interface %d\n", res);
return res;
}
data->loop_utils = iface;
data->log = &default_log.log;
if ((str = getenv("SPA_DEBUG")))
data->log->level = atoi(str);
data->support[data->n_support++] = SPA_SUPPORT_INIT(SPA_TYPE_INTERFACE_Log, data->log);
data->support[data->n_support++] = SPA_SUPPORT_INIT(SPA_TYPE_INTERFACE_Loop, data->loop);
data->support[data->n_support++] = SPA_SUPPORT_INIT(SPA_TYPE_INTERFACE_DataLoop, data->loop);
data->support[data->n_support++] = SPA_SUPPORT_INIT(SPA_TYPE_INTERFACE_LoopUtils, data->loop_utils);
/* Use webrtc as default */
if ((res = load_handle(data, &handle,
"aec/libspa-aec-webrtc.so",
SPA_NAME_AEC)) < 0)
return res;
if ((res = spa_handle_get_interface(handle, SPA_TYPE_INTERFACE_AUDIO_AEC, &iface)) < 0) {
spa_log_error(data->log, "can't get %s interface %d", SPA_TYPE_INTERFACE_AUDIO_AEC, res);
return res;
}
data->aec = iface;
data->aec_handle = handle;
return 0;
}
static int spa_dict_from_json(struct spa_dict_item *items, uint32_t n_items, const char *str)
{
struct spa_json it;
int res;
char key[1024];
const char *value;
uint32_t i, len;
struct spa_error_location loc;
if ((res = spa_json_begin_object_relax(&it, str, strlen(str))) < 0) {
return res;
}
i = 0;
while ((len = spa_json_object_next(&it, key, sizeof(key), &value)) > 0) {
if (i > n_items)
return -ENOSPC;
char *k = malloc(strlen(key) + 1);
char *v = malloc(len + 1);
memcpy(k, key, strlen(key) + 1);
spa_json_parse_stringn(value, len, v, len + 1);
items[i++] = SPA_DICT_ITEM_INIT(k, v);
}
if (spa_json_get_error(&it, str, &loc)) {
struct spa_debug_context *c = NULL;
spa_debugc(c, "Invalid JSON: %s", loc.reason);
spa_debugc_error_location(c, &loc);
return -EINVAL;
}
return i;
}
static const struct format_info {
const char *name;
int sf_format;
uint32_t spa_format;
uint32_t width;
} format_info[] = {
{ "ulaw", SF_FORMAT_ULAW, SPA_AUDIO_FORMAT_ULAW, 1 },
{ "alaw", SF_FORMAT_ULAW, SPA_AUDIO_FORMAT_ALAW, 1 },
{ "s8", SF_FORMAT_PCM_S8, SPA_AUDIO_FORMAT_S8, 1 },
{ "u8", SF_FORMAT_PCM_U8, SPA_AUDIO_FORMAT_U8, 1 },
{ "s16", SF_FORMAT_PCM_16, SPA_AUDIO_FORMAT_S16, 2 },
{ "s24", SF_FORMAT_PCM_24, SPA_AUDIO_FORMAT_S24, 3 },
{ "s32", SF_FORMAT_PCM_32, SPA_AUDIO_FORMAT_S32, 4 },
{ "f32", SF_FORMAT_FLOAT, SPA_AUDIO_FORMAT_F32, 4 },
{ "f64", SF_FORMAT_DOUBLE, SPA_AUDIO_FORMAT_F32, 8 },
};
static SNDFILE* open_file_read(const struct data *data, const char *name, struct spa_audio_info_raw *info)
{
SF_INFO sf_info = { 0, };
SNDFILE *file = sf_open(name, SFM_READ, &sf_info);
if (!file) {
spa_log_error(data->log, "Could not open file: %s", sf_strerror(NULL));
exit(255);
}
for (unsigned long i = 0; i < SPA_N_ELEMENTS(format_info); i++) {
if ((sf_info.format & SF_FORMAT_SUBMASK) == format_info[i].sf_format) {
info->format = format_info[i].spa_format;
break;
}
}
info->rate = sf_info.samplerate;
info->channels = sf_info.channels;
return file;
}
static SNDFILE* open_file_write(const struct data *data, const char *name, struct spa_audio_info_raw *info)
{
SF_INFO sf_info = { 0, };
for (unsigned long i = 0; i < SPA_N_ELEMENTS(format_info); i++) {
if (info->format == format_info[i].spa_format) {
sf_info.format = SF_FORMAT_WAV | format_info[i].sf_format;
break;
}
}
sf_info.samplerate = info->rate;
sf_info.channels = info->channels;
SNDFILE *file = sf_open(name, SFM_WRITE, &sf_info);
if (!file) {
spa_log_error(data->log, "Could not open file: %s", sf_strerror(NULL));
exit(255);
}
return file;
}
static void deinterleave(float *data, uint32_t channels, uint32_t samples)
{
float temp[channels * samples];
for (uint32_t i = 0; i < channels; i++) {
for (uint32_t j = 0; j < samples; j++) {
temp[i * samples + j] = data[j * channels + i];
}
}
memcpy(data, temp, sizeof(temp));
}
static void interleave(float *data, uint32_t channels, uint32_t samples)
{
float temp[channels * samples];
for (uint32_t i = 0; i < samples; i++) {
for (uint32_t j = 0; j < channels; j++) {
temp[i * channels + j] = data[j * samples + i];
}
}
memcpy(data, temp, sizeof(temp));
}
static void usage(const char *exe)
{
printf("Usage: %s rec_file play_file out_file <\"aec args\">\n", basename(exe));
}
int main(int argc, char *argv[])
{
struct data data = { 0, };
struct spa_dict_item items[16] = { 0, };
int n_items = 0, res;
if ((res = init(&data)) < 0)
return res;
if (argc < 4 || argc > 5) {
usage(argv[0]);
return -1;
}
if (argc == 5) {
if ((res = spa_dict_from_json(items, SPA_N_ELEMENTS(items), argv[4])) < 0)
return res;
n_items = res;
}
struct spa_dict aec_args = SPA_DICT(items, n_items);
struct spa_audio_info_raw rec_info = { 0, };
struct spa_audio_info_raw play_info = { 0, };
SNDFILE *rec_file = open_file_read(&data, argv[1], &rec_info);
SNDFILE *play_file = open_file_read(&data, argv[2], &play_info);
SNDFILE *out_file = open_file_write(&data, argv[3], &rec_info);
if ((res = spa_audio_aec_init2(data.aec, &aec_args, &rec_info, &play_info, &rec_info)) < 0) {
spa_log_error(data.log, "Could not initialise AEC engine: %s", spa_strerror(res));
return -1;
}
if (data.aec->latency) {
unsigned int num, denom;
sscanf(data.aec->latency, "%u/%u", &num, &denom);
data.aec_samples = rec_info.rate * num / denom;
} else {
/* Implementation doesn't care about the block size */
data.aec_samples = 1024;
}
float rec_data[rec_info.channels * data.aec_samples];
float play_data[play_info.channels * data.aec_samples];
float out_data[rec_info.channels * data.aec_samples];
const float *rec[rec_info.channels];
const float *play[play_info.channels];
float *out[rec_info.channels];
for (uint32_t i = 0; i < rec_info.channels; i++) {
rec[i] = &rec_data[i * data.aec_samples];
out[i] = &out_data[i * data.aec_samples];
}
for (uint32_t i = 0; i < play_info.channels; i++) {
play[i] = &play_data[i * data.aec_samples];
}
while (1) {
res = sf_readf_float(rec_file, (float *)rec_data, data.aec_samples);
if (res != (int) data.aec_samples)
break;
res = sf_readf_float(play_file, (float *)play_data, data.aec_samples);
if (res != (int) data.aec_samples)
break;
deinterleave((float *)rec_data, rec_info.channels, data.aec_samples);
deinterleave((float *)play_data, play_info.channels, data.aec_samples);
spa_audio_aec_run(data.aec, rec, play, out, data.aec_samples);
interleave((float *)out_data, rec_info.channels, data.aec_samples);
res = sf_writef_float(out_file, (const float *)out_data, data.aec_samples);
if (res != (int) data.aec_samples) {
spa_log_error(data.log, "Failed to write: %s", spa_strerror(res));
break;
}
}
sf_close(rec_file);
sf_close(play_file);
sf_close(out_file);
return 0;
}

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@ -28,15 +28,22 @@ if find.found()
endif
benchmark_apps = [
'stress-ringbuffer',
'benchmark-pod',
'benchmark-dict',
['stress-ringbuffer', []],
['benchmark-pod', []],
['benchmark-dict', []],
]
if sndfile_dep.found()
benchmark_apps += [
['benchmark-aec', [sndfile_dep]]
]
endif
foreach a : benchmark_apps
benchmark('spa-' + a,
executable('spa-' + a, a + '.c',
dependencies : [ spa_dep, dl_lib, pthread_lib, mathlib ],
benchmark('spa-' + a[0],
executable('spa-' + a[0], a[0] + '.c',
dependencies : [ spa_dep, dl_lib, pthread_lib, mathlib ] + a[1],
include_directories : [configinc],
install : installed_tests_enabled,
install_dir : installed_tests_execdir,
),