#include "config.h"
#include <math.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <dlfcn.h>
#include <errno.h>
#include <pthread.h>
#include <poll.h>
#define M_PI_M2 ( M_PI + M_PI )
#define spa_debug(f,...) spa_log_trace(&default_log.log, f, __VA_ARGS__)
struct buffer {
};
struct data {
const char *plugin_dir;
uint32_t n_support;
struct buffer source_buffer[1];
uint8_t ctrl[1024];
double freq_accum;
double volume_accum;
bool running;
pthread_t thread;
};
#define MIN_LATENCY 1024
#define BUFFER_SIZE 4096
static void
init_buffer(
struct data *data,
struct spa_buffer **bufs,
struct buffer *ba,
int n_buffers,
size_t size)
{
int i;
for (i = 0; i < n_buffers; i++) {
struct buffer *b = &ba[i];
bufs[i] = &b->buffer;
b->buffer.metas = b->metas;
b->buffer.n_metas = 1;
b->buffer.datas = b->datas;
b->buffer.n_datas = 1;
b->header.flags = 0;
b->header.seq = 0;
b->header.pts = 0;
b->header.dts_offset = 0;
b->metas[0].data = &b->header;
b->metas[0].size = sizeof(b->header);
b->datas[0].flags = 0;
b->datas[0].fd = -1;
b->datas[0].mapoffset = 0;
b->datas[0].maxsize = size;
b->datas[0].data = malloc(size);
b->datas[0].chunk = &b->chunks[0];
b->datas[0].chunk->offset = 0;
b->datas[0].chunk->size = 0;
b->datas[0].chunk->stride = 0;
}
}
static int make_node(
struct data *data,
struct spa_node **node,
const char *lib,
const char *name)
{
int res;
void *hnd;
uint32_t i;
char *path;
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", lib, dlerror());
free(path);
return -ENOENT;
}
free(path);
printf("can't find enum function\n");
return -ENOENT;
}
for (i = 0;;) {
void *iface;
if ((res = enum_func(&factory, &i)) <= 0) {
if (res != 0)
printf(
"can't enumerate factories: %s\n",
spa_strerror(res));
break;
}
continue;
continue;
if ((res =
data->n_support)) < 0) {
printf("can't make factory instance: %d\n", res);
return res;
}
printf("can't get interface %d\n", res);
return res;
}
*node = iface;
return 0;
}
return -EBADF;
}
static void update_props(struct data *data)
{
#if 0
#else
#endif
data->freq_accum += M_PI_M2 / 880.0;
if (data->freq_accum >= M_PI_M2)
data->freq_accum -= M_PI_M2;
data->volume_accum += M_PI_M2 / 2000.0;
if (data->volume_accum >= M_PI_M2)
data->volume_accum -= M_PI_M2;
}
static int on_sink_ready(void *_data, int status)
{
struct data *data = _data;
update_props(data);
return 0;
}
static int
on_sink_reuse_buffer(void *_data, uint32_t port_id, uint32_t buffer_id)
{
struct data *data = _data;
data->source_sink_io[0].buffer_id = buffer_id;
return 0;
}
.ready = on_sink_ready,
.reuse_buffer = on_sink_reuse_buffer
};
static int make_nodes(struct data *data, const char *device)
{
int res;
uint8_t buffer[512];
"alsa/libspa-alsa.so",
printf("can't create alsa-sink: %d\n", res);
return res;
}
printf("got set_props error %d\n", res);
if ((res = make_node(
data, &
data->source,
"audiotestsrc/libspa-audiotestsrc.so",
"audiotestsrc")) < 0) {
printf("can't create audiotestsrc: %d\n", res);
return res;
}
printf("got set_props error %d\n", res);
&
data->ctrl,
sizeof(
data->ctrl))) < 0) {
printf("can't set_io freq: %d\n", res);
return res;
}
&
data->source_sink_io[0],
sizeof(
data->source_sink_io[0]));
&
data->source_sink_io[0],
sizeof(
data->source_sink_io[0]));
return res;
}
static int negotiate_formats(
struct data *
data)
{
int res;
uint8_t buffer[4096];
.rate = 48000,
.channels = 2 ));
return res;
return res;
init_buffer(
data,
data->source_buffers,
data->source_buffer, 1, BUFFER_SIZE);
if ((res =
data->source_buffers, 1)) < 0)
return res;
if ((res =
data->source_buffers, 1)) < 0)
return res;
return 0;
}
static void *loop(void *user_data)
{
struct data *data = user_data;
printf("enter thread\n");
while (data->running) {
}
printf("leave thread\n");
return NULL;
}
static void run_async_sink(struct data *data)
{
int res, err;
printf("got error %d\n", res);
data->running = true;
if ((err = pthread_create(&data->thread, NULL, loop, data)) != 0) {
printf("can't create thread: %d %s", err, strerror(err));
data->running = false;
}
printf("sleeping for 1000 seconds\n");
sleep(1000);
if (data->running) {
data->running = false;
pthread_join(data->thread, NULL);
}
printf("got error %d\n", res);
}
static int load_handle(
struct data *data,
struct spa_handle **handle,
const char *lib,
const char *name)
{
int res;
void *hnd;
uint32_t i;
char *path;
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", lib, dlerror());
free(path);
return -ENOENT;
}
free(path);
printf("can't find enum function\n");
return -ENOENT;
}
for (i = 0;;) {
if ((res = enum_func(&factory, &i)) <= 0) {
if (res != 0)
printf(
"can't enumerate factories: %s\n",
spa_strerror(res));
break;
}
continue;
continue;
NULL, data->support,
data->n_support)) < 0) {
printf("can't make factory instance: %d\n", res);
return res;
}
return 0;
}
return -EBADF;
}
int init_data(struct data *data)
{
int res;
const char *str;
void *iface;
if ((str = getenv("SPA_PLUGIN_DIR")) == NULL)
str = PLUGINDIR;
data->plugin_dir = str;
data->log = &default_log.log;
if ((res = load_handle(data, &handle,
"support/libspa-support.so",
return res;
printf("can't get System interface %d\n", res);
return res;
}
data->system = iface;
if ((res = load_handle(data, &handle,
"support/libspa-support.so",
return res;
printf("can't get interface %d\n", res);
return res;
}
data->loop = iface;
printf("can't get interface %d\n", res);
return res;
}
data->control = iface;
if ((str = getenv("SPA_DEBUG")))
data->log->level = atoi(str);
return 0;
}
int main(int argc, char *argv[])
{
struct data data = { NULL };
int res;
if ((res = init_data(&data)) < 0) {
printf(
"can't init data: %d (%s)\n", res,
spa_strerror(res));
return -1;
}
if ((res = make_nodes(&data, argc > 1 ? argv[1] : NULL)) < 0) {
printf(
"can't make nodes: %d (%s)\n", res,
spa_strerror(res));
return -1;
}
if ((res = negotiate_formats(&data)) < 0) {
printf(
"can't negotiate nodes: %d (%s)\n", res,
spa_strerror(res));
return -1;
}
run_async_sink(&data);
return 0;
}