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Add example to play sine wave

Browse source 
Various build fixes and cleanups
Move port_add to private and make node ports based on implementation.
Improve pull based scheduling on remote nodes
This commit is contained in:
Wim Taymans 2017-09-07 10:22:32 +02:00
parent 36ac8a6545
commit 21cd5a2918
26 changed files with 640 additions and 185 deletions
Download patch file Download diff file Expand all files Collapse all files

48
src/examples/export-sink.c
View file

@ -69,8 +69,7 @@ struct data {
SDL_Window *window;
SDL_Texture *texture;
bool running;
struct pw_loop *loop;
struct pw_main_loop *loop;
struct pw_core *core;
struct pw_type *t;
@ -79,7 +78,6 @@ struct data {
struct spa_hook remote_listener;
struct pw_node *node;
struct pw_port *port;
struct spa_port_info port_info;
struct spa_node impl_node;
@ -105,7 +103,7 @@ static void handle_events(struct data *data)
while (SDL_PollEvent(&event)) {
switch (event.type) {
case SDL_QUIT:
exit(0);
pw_main_loop_quit(data->loop);
break;
}
}
@ -199,6 +197,28 @@ static int impl_set_callbacks(struct spa_node *node,
return SPA_RESULT_OK;
}
static int impl_get_n_ports(struct spa_node *node,
uint32_t *n_input_ports,
uint32_t *max_input_ports,
uint32_t *n_output_ports,
uint32_t *max_output_ports)
{
*n_input_ports = *max_input_ports = 1;
*n_output_ports = *max_output_ports = 0;
return SPA_RESULT_OK;
}
static int impl_get_port_ids(struct spa_node *node,
uint32_t n_input_ports,
uint32_t *input_ids,
uint32_t n_output_ports,
uint32_t *output_ids)
{
if (n_input_ports > 0)
input_ids[0] = 0;
return SPA_RESULT_OK;
}
static int impl_port_set_io(struct spa_node *node, enum spa_direction direction, uint32_t port_id,
struct spa_port_io *io)
{
@ -433,6 +453,8 @@ static const struct spa_node impl_node = {
SPA_VERSION_NODE,
.set_callbacks = impl_set_callbacks,
.send_command = impl_send_command,
.get_n_ports = impl_get_n_ports,
.get_port_ids = impl_get_port_ids,
.port_set_io = impl_port_set_io,
.port_enum_formats = impl_port_enum_formats,
.port_set_format = impl_port_set_format,
@ -455,8 +477,6 @@ static void make_node(struct data *data)
data->impl_node = impl_node;
pw_node_set_implementation(data->node, &data->impl_node);
data->port = pw_port_new(PW_DIRECTION_INPUT, 0, NULL, 0);
pw_port_add(data->port, data->node);
pw_node_register(data->node);
pw_remote_export(data->remote, data->node);
@ -469,7 +489,7 @@ static void on_state_changed(void *_data, enum pw_remote_state old, enum pw_remo
switch (state) {
case PW_REMOTE_STATE_ERROR:
printf("remote error: %s\n", error);
data->running = false;
pw_main_loop_quit(data->loop);
break;
case PW_REMOTE_STATE_CONNECTED:
@ -493,9 +513,8 @@ int main(int argc, char *argv[])
pw_init(&argc, &argv);
data.loop = pw_loop_new(NULL);
data.running = true;
data.core = pw_core_new(data.loop, NULL);
data.loop = pw_main_loop_new(NULL);
data.core = pw_core_new(pw_main_loop_get_loop(data.loop), NULL);
data.t = pw_core_get_type(data.core);
data.remote = pw_remote_new(data.core, NULL);
data.path = argc > 1 ? argv[1] : NULL;
@ -521,13 +540,10 @@ int main(int argc, char *argv[])
pw_remote_connect(data.remote);
pw_loop_enter(data.loop);
while (data.running) {
pw_loop_iterate(data.loop, -1);
}
pw_loop_leave(data.loop);
pw_main_loop_run(data.loop);
pw_loop_destroy(data.loop);
pw_core_destroy(data.core);
pw_main_loop_destroy(data.loop);
return 0;
}

435
src/examples/export-source.c Normal file
View file

@ -0,0 +1,435 @@
/* PipeWire
* Copyright (C) 2017 Wim Taymans <wim.taymans@gmail.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#include <stdio.h>
#include <math.h>
#include <sys/mman.h>
#include <spa/type-map.h>
#include <spa/format-utils.h>
#include <spa/audio/format-utils.h>
#include <spa/format-builder.h>
#include <spa/props.h>
#include <spa/lib/debug.h>
#include <pipewire/pipewire.h>
#include <pipewire/module.h>
#include <pipewire/node-factory.h>
#define M_PI_M2 ( M_PI + M_PI )
struct type {
uint32_t format;
uint32_t props;
struct spa_type_meta meta;
struct spa_type_data data;
struct spa_type_media_type media_type;
struct spa_type_media_subtype media_subtype;
struct spa_type_format_audio format_audio;
struct spa_type_audio_format audio_format;
};
static inline void init_type(struct type *type, struct spa_type_map *map)
{
type->format = spa_type_map_get_id(map, SPA_TYPE__Format);
type->props = spa_type_map_get_id(map, SPA_TYPE__Props);
spa_type_meta_map(map, &type->meta);
spa_type_data_map(map, &type->data);
spa_type_media_type_map(map, &type->media_type);
spa_type_media_subtype_map(map, &type->media_subtype);
spa_type_format_audio_map(map, &type->format_audio);
spa_type_audio_format_map(map, &type->audio_format);
}
struct buffer {
struct spa_buffer *buffer;
struct spa_list link;
void *ptr;
size_t size;
bool mapped;
};
struct data {
struct type type;
const char *path;
struct pw_main_loop *loop;
struct pw_core *core;
struct pw_type *t;
struct pw_remote *remote;
struct spa_hook remote_listener;
struct pw_node *node;
struct spa_port_info port_info;
struct spa_node impl_node;
const struct spa_node_callbacks *callbacks;
void *callbacks_data;
struct spa_port_io *io;
uint8_t buffer[1024];
struct spa_audio_info_raw format;
uint8_t params_buffer[1024];
struct spa_param *params[2];
struct buffer buffers[32];
int n_buffers;
struct spa_list empty;
double accumulator;
};
#define PROP(f,key,type,...) \
SPA_POD_PROP (f,key,0,type,1,__VA_ARGS__)
#define PROP_U_MM(f,key,type,...) \
SPA_POD_PROP (f,key,SPA_POD_PROP_FLAG_UNSET | \
SPA_POD_PROP_RANGE_MIN_MAX,type,3,__VA_ARGS__)
static int impl_send_command(struct spa_node *node, const struct spa_command *command)
{
return SPA_RESULT_OK;
}
static int impl_set_callbacks(struct spa_node *node,
const struct spa_node_callbacks *callbacks, void *data)
{
struct data *d = SPA_CONTAINER_OF(node, struct data, impl_node);
d->callbacks = callbacks;
d->callbacks_data = data;
return SPA_RESULT_OK;
}
static int impl_get_n_ports(struct spa_node *node,
uint32_t *n_input_ports,
uint32_t *max_input_ports,
uint32_t *n_output_ports,
uint32_t *max_output_ports)
{
*n_input_ports = *max_input_ports = 0;
*n_output_ports = *max_output_ports = 1;
return SPA_RESULT_OK;
}
static int impl_get_port_ids(struct spa_node *node,
uint32_t n_input_ports,
uint32_t *input_ids,
uint32_t n_output_ports,
uint32_t *output_ids)
{
if (n_output_ports > 0)
output_ids[0] = 0;
return SPA_RESULT_OK;
}
static int impl_port_set_io(struct spa_node *node, enum spa_direction direction, uint32_t port_id,
struct spa_port_io *io)
{
struct data *d = SPA_CONTAINER_OF(node, struct data, impl_node);
d->io = io;
return SPA_RESULT_OK;
}
static int impl_port_enum_formats(struct spa_node *node, enum spa_direction direction, uint32_t port_id,
struct spa_format **format,
const struct spa_format *filter,
uint32_t index)
{
struct data *d = SPA_CONTAINER_OF(node, struct data, impl_node);
struct spa_pod_builder b = SPA_POD_BUILDER_INIT(d->buffer, sizeof(d->buffer));
struct spa_pod_frame f[2];
if (index != 0)
return SPA_RESULT_ENUM_END;
spa_pod_builder_push_format(&b, &f[0], d->type.format,
d->type.media_type.audio,
d->type.media_subtype.raw);
spa_pod_builder_add(&b,
PROP(&f[1], d->type.format_audio.format, SPA_POD_TYPE_ID, d->type.audio_format.S16),
PROP(&f[1], d->type.format_audio.channels, SPA_POD_TYPE_INT, 2),
PROP(&f[1], d->type.format_audio.rate, SPA_POD_TYPE_INT, 44100),
0);
spa_pod_builder_pop(&b, &f[0]);
*format = SPA_POD_BUILDER_DEREF(&b, f[0].ref, struct spa_format);
spa_debug_format(*format);
return SPA_RESULT_OK;
}
static int impl_port_set_format(struct spa_node *node, enum spa_direction direction, uint32_t port_id,
uint32_t flags, const struct spa_format *format)
{
struct data *d = SPA_CONTAINER_OF(node, struct data, impl_node);
struct pw_type *t = d->t;
struct spa_pod_builder b = { NULL };
struct spa_pod_frame f[2];
if (format == NULL)
return SPA_RESULT_OK;
spa_debug_format(format);
spa_format_audio_raw_parse(format, &d->format, &d->type.format_audio);
if (d->format.format != d->type.audio_format.S16)
return SPA_RESULT_ERROR;
spa_pod_builder_init(&b, d->params_buffer, sizeof(d->params_buffer));
spa_pod_builder_object(&b, &f[0], 0, t->param_alloc_buffers.Buffers,
PROP_U_MM(&f[1], t->param_alloc_buffers.size, SPA_POD_TYPE_INT, 1024, 32, 4096),
PROP (&f[1], t->param_alloc_buffers.stride, SPA_POD_TYPE_INT, 0),
PROP_U_MM(&f[1], t->param_alloc_buffers.buffers, SPA_POD_TYPE_INT, 2, 2, 32),
PROP (&f[1], t->param_alloc_buffers.align, SPA_POD_TYPE_INT, 16));
d->params[0] = SPA_POD_BUILDER_DEREF(&b, f[0].ref, struct spa_param);
spa_pod_builder_object(&b, &f[0], 0, t->param_alloc_meta_enable.MetaEnable,
PROP(&f[1], t->param_alloc_meta_enable.type, SPA_POD_TYPE_ID, t->meta.Header),
PROP(&f[1], t->param_alloc_meta_enable.size, SPA_POD_TYPE_INT,
sizeof(struct spa_meta_header)));
d->params[1] = SPA_POD_BUILDER_DEREF(&b, f[0].ref, struct spa_param);
return SPA_RESULT_OK;
}
static int impl_port_get_format(struct spa_node *node, enum spa_direction direction, uint32_t port_id,
const struct spa_format **format)
{
struct data *d = SPA_CONTAINER_OF(node, struct data, impl_node);
struct spa_pod_builder b = SPA_POD_BUILDER_INIT(d->buffer, sizeof(d->buffer));
struct spa_pod_frame f[2];
spa_pod_builder_push_format(&b, &f[0], d->type.format,
d->type.media_type.audio,
d->type.media_subtype.raw);
spa_pod_builder_add(&b,
PROP(&f[1], d->type.format_audio.format, SPA_POD_TYPE_ID, d->format.format),
PROP(&f[1], d->type.format_audio.channels, SPA_POD_TYPE_INT, d->format.channels),
PROP(&f[1], d->type.format_audio.rate, SPA_POD_TYPE_INT, d->format.rate),
0);
spa_pod_builder_pop(&b, &f[0]);
*format = SPA_POD_BUILDER_DEREF(&b, f[0].ref, struct spa_format);
return SPA_RESULT_OK;
}
static int impl_port_get_info(struct spa_node *node, enum spa_direction direction, uint32_t port_id,
const struct spa_port_info **info)
{
struct data *d = SPA_CONTAINER_OF(node, struct data, impl_node);
d->port_info.flags = SPA_PORT_INFO_FLAG_CAN_USE_BUFFERS;
d->port_info.rate = 0;
d->port_info.props = NULL;
*info = &d->port_info;
return SPA_RESULT_OK;
}
static int impl_port_enum_params(struct spa_node *node, enum spa_direction direction, uint32_t port_id,
uint32_t index, struct spa_param **param)
{
struct data *d = SPA_CONTAINER_OF(node, struct data, impl_node);
if (index >= 2)
return SPA_RESULT_ENUM_END;
*param = d->params[index];
return SPA_RESULT_OK;
}
static int impl_port_use_buffers(struct spa_node *node, enum spa_direction direction, uint32_t port_id,
struct spa_buffer **buffers, uint32_t n_buffers)
{
struct data *d = SPA_CONTAINER_OF(node, struct data, impl_node);
int i;
for (i = 0; i < n_buffers; i++) {
struct buffer *b = &d->buffers[i];
struct spa_data *datas = buffers[i]->datas;
if (datas[0].data != NULL) {
b->ptr = datas[0].data;
b->mapped = false;
}
else if (datas[0].type == d->type.data.MemFd ||
datas[0].type == d->type.data.DmaBuf) {
b->ptr = mmap(NULL, datas[0].maxsize + datas[0].mapoffset, PROT_WRITE,
MAP_SHARED, datas[0].fd, 0);
if (b->ptr == MAP_FAILED) {
pw_log_error("failed to buffer mem");
return SPA_RESULT_ERROR;
}
b->ptr = SPA_MEMBER(b->ptr, datas[0].mapoffset, void);
b->mapped = true;
}
else {
pw_log_error("invalid buffer mem");
return SPA_RESULT_ERROR;
}
b->size = datas[0].maxsize;
b->buffer = buffers[i];
pw_log_info("got buffer %d size %zd", i, b->size);
spa_list_append(&d->empty, &b->link);
}
d->n_buffers = n_buffers;
return SPA_RESULT_OK;
}
static inline void reuse_buffer(struct data *d, uint32_t id)
{
spa_list_append(&d->empty, &d->buffers[id].link);
}
static int impl_node_process_output(struct spa_node *node)
{
struct data *d = SPA_CONTAINER_OF(node, struct data, impl_node);
struct buffer *b;
int i, c, n_samples;
int16_t *dst;
struct spa_port_io *io = d->io;
if (io->status == SPA_RESULT_HAVE_BUFFER)
return SPA_RESULT_HAVE_BUFFER;
if (io->buffer_id < d->n_buffers) {
reuse_buffer(d, io->buffer_id);
io->buffer_id = SPA_ID_INVALID;
}
if (spa_list_is_empty(&d->empty)) {
pw_log_error("sine-source %p: out of buffers", d);
return SPA_RESULT_OUT_OF_BUFFERS;
}
b = spa_list_first(&d->empty, struct buffer, link);
spa_list_remove(&b->link);
dst = b->ptr;
n_samples = b->size / (sizeof(int16_t) * d->format.channels);
for (i = 0; i < n_samples; i++) {
int16_t val;
d->accumulator += M_PI_M2 * 440 / d->format.rate;
if (d->accumulator >= M_PI_M2)
d->accumulator -= M_PI_M2;
val = (int16_t) (sin(d->accumulator) * 32767.0);
for (c = 0; c < d->format.channels; c++)
*dst++ = val;
}
io->buffer_id = b->buffer->id;
io->status = SPA_RESULT_HAVE_BUFFER;
return SPA_RESULT_HAVE_BUFFER;
}
static const struct spa_node impl_node = {
SPA_VERSION_NODE,
.send_command = impl_send_command,
.set_callbacks = impl_set_callbacks,
.get_n_ports = impl_get_n_ports,
.get_port_ids = impl_get_port_ids,
.port_set_io = impl_port_set_io,
.port_enum_formats = impl_port_enum_formats,
.port_set_format = impl_port_set_format,
.port_get_format = impl_port_get_format,
.port_get_info = impl_port_get_info,
.port_enum_params = impl_port_enum_params,
.port_use_buffers = impl_port_use_buffers,
.process_output = impl_node_process_output,
};
static void make_node(struct data *data)
{
struct pw_properties *props;
props = pw_properties_new("pipewire.autoconnect", "1", NULL);
if (data->path)
pw_properties_set(props, "pipewire.target.node", data->path);
data->node = pw_node_new(data->core, NULL, NULL, "sine-source", props, 0);
data->impl_node = impl_node;
pw_node_set_implementation(data->node, &data->impl_node);
pw_node_register(data->node);
pw_remote_export(data->remote, data->node);
}
static void on_state_changed(void *_data, enum pw_remote_state old,
enum pw_remote_state state, const char *error)
{
struct data *data = _data;
switch (state) {
case PW_REMOTE_STATE_ERROR:
printf("remote error: %s\n", error);
pw_main_loop_quit(data->loop);
break;
case PW_REMOTE_STATE_CONNECTED:
make_node(data);
break;
default:
printf("remote state: \"%s\"\n", pw_remote_state_as_string(state));
break;
}
}
static const struct pw_remote_events remote_events = {
PW_VERSION_REMOTE_EVENTS,
.state_changed = on_state_changed,
};
int main(int argc, char *argv[])
{
struct data data = { 0, };
pw_init(&argc, &argv);
data.loop = pw_main_loop_new(NULL);
data.core = pw_core_new(pw_main_loop_get_loop(data.loop), NULL);
data.t = pw_core_get_type(data.core);
data.remote = pw_remote_new(data.core, NULL);
data.path = argc > 1 ? argv[1] : NULL;
spa_list_init(&data.empty);
init_type(&data.type, data.t->map);
spa_debug_set_type_map(data.t->map);
pw_remote_add_listener(data.remote, &data.remote_listener, &remote_events, &data);
pw_remote_connect(data.remote);
pw_main_loop_run(data.loop);
pw_core_destroy(data.core);
pw_main_loop_destroy(data.loop);
return 0;
}

54
src/examples/export-v4l2.c
View file

@ -32,34 +32,8 @@
#include <pipewire/module.h>
#include <pipewire/node-factory.h>
struct type {
uint32_t format;
uint32_t props;
struct spa_type_meta meta;
struct spa_type_data data;
struct spa_type_media_type media_type;
struct spa_type_media_subtype media_subtype;
struct spa_type_format_video format_video;
struct spa_type_video_format video_format;
};
static inline void init_type(struct type *type, struct spa_type_map *map)
{
type->format = spa_type_map_get_id(map, SPA_TYPE__Format);
type->props = spa_type_map_get_id(map, SPA_TYPE__Props);
spa_type_meta_map(map, &type->meta);
spa_type_data_map(map, &type->data);
spa_type_media_type_map(map, &type->media_type);
spa_type_media_subtype_map(map, &type->media_subtype);
spa_type_format_video_map(map, &type->format_video);
spa_type_video_format_map(map, &type->video_format);
}
struct data {
struct type type;
bool running;
struct pw_loop *loop;
struct pw_main_loop *loop;
struct pw_core *core;
struct pw_type *t;
@ -90,7 +64,7 @@ static void on_state_changed(void *_data, enum pw_remote_state old, enum pw_remo
switch (state) {
case PW_REMOTE_STATE_ERROR:
printf("remote error: %s\n", error);
data->running = false;
pw_main_loop_quit(data->loop);
break;
case PW_REMOTE_STATE_CONNECTED:
@ -112,45 +86,39 @@ static const struct pw_remote_events remote_events = {
static void do_quit(void *data, int signal_number)
{
struct data *d = data;
d->running = false;
pw_main_loop_quit(d->loop);
}
int main(int argc, char *argv[])
{
struct data data = { 0, };
struct pw_loop *l;
pw_init(&argc, &argv);
data.loop = pw_loop_new(NULL);
pw_loop_add_signal(data.loop, SIGINT, do_quit, &data);
pw_loop_add_signal(data.loop, SIGTERM, do_quit, &data);
data.running = true;
data.core = pw_core_new(data.loop, NULL);
data.loop = pw_main_loop_new(NULL);
l = pw_main_loop_get_loop(data.loop);
pw_loop_add_signal(l, SIGINT, do_quit, &data);
pw_loop_add_signal(l, SIGTERM, do_quit, &data);
data.core = pw_core_new(l, NULL);
data.t = pw_core_get_type(data.core);
data.remote = pw_remote_new(data.core, NULL);
pw_module_load(data.core, "libpipewire-module-spa-node-factory", NULL);
init_type(&data.type, data.t->map);
spa_debug_set_type_map(data.t->map);
pw_remote_add_listener(data.remote, &data.remote_listener, &remote_events, &data);
pw_remote_connect(data.remote);
pw_loop_enter(data.loop);
while (data.running) {
pw_loop_iterate(data.loop, 100);
}
pw_loop_leave(data.loop);
pw_main_loop_run(data.loop);
pw_remote_destroy(data.remote);
if (data.node)
pw_node_destroy(data.node);
pw_core_destroy(data.core);
pw_loop_destroy(data.loop);
pw_main_loop_destroy(data.loop);
return 0;
}

47
src/examples/local-v4l2.c
View file

@ -67,14 +67,12 @@ struct data {
SDL_Window *window;
SDL_Texture *texture;
bool running;
struct pw_loop *loop;
struct pw_main_loop *loop;
struct spa_source *timer;
struct pw_core *core;
struct pw_type *t;
struct pw_node *node;
struct pw_port *port;
struct spa_port_info port_info;
struct pw_node *v4l2;
@ -105,7 +103,7 @@ static void handle_events(struct data *data)
while (SDL_PollEvent(&event)) {
switch (event.type) {
case SDL_QUIT:
data->running = false;
pw_main_loop_quit(data->loop);
break;
}
}
@ -199,6 +197,28 @@ static int impl_set_callbacks(struct spa_node *node,
return SPA_RESULT_OK;
}
static int impl_get_n_ports(struct spa_node *node,
uint32_t *n_input_ports,
uint32_t *max_input_ports,
uint32_t *n_output_ports,
uint32_t *max_output_ports)
{
*n_input_ports = *max_input_ports = 1;
*n_output_ports = *max_output_ports = 0;
return SPA_RESULT_OK;
}
static int impl_get_port_ids(struct spa_node *node,
uint32_t n_input_ports,
uint32_t *input_ids,
uint32_t n_output_ports,
uint32_t *output_ids)
{
if (n_input_ports > 0)
input_ids[0] = 0;
return SPA_RESULT_OK;
}
static int impl_port_set_io(struct spa_node *node, enum spa_direction direction, uint32_t port_id,
struct spa_port_io *io)
{
@ -414,6 +434,8 @@ static const struct spa_node impl_node = {
NULL,
.send_command = impl_send_command,
.set_callbacks = impl_set_callbacks,
.get_n_ports = impl_get_n_ports,
.get_port_ids = impl_get_port_ids,
.port_set_io = impl_port_set_io,
.port_enum_formats = impl_port_enum_formats,
.port_set_format = impl_port_set_format,
@ -432,8 +454,6 @@ static void make_nodes(struct data *data)
data->impl_node = impl_node;
pw_node_set_implementation(data->node, &data->impl_node);
data->port = pw_port_new(PW_DIRECTION_INPUT, 0, NULL, 0);
pw_port_add(data->port, data->node);
pw_node_register(data->node);
factory = pw_core_find_node_factory(data->core, "spa-node-factory");
@ -444,7 +464,7 @@ static void make_nodes(struct data *data)
data->link = pw_link_new(data->core,
NULL,
pw_node_get_free_port(data->v4l2, PW_DIRECTION_OUTPUT),
data->port,
pw_node_find_port(data->node, PW_DIRECTION_INPUT, 0),
NULL,
NULL,
NULL,
@ -458,9 +478,8 @@ int main(int argc, char *argv[])
pw_init(&argc, &argv);
data.loop = pw_loop_new(NULL);
data.running = true;
data.core = pw_core_new(data.loop, NULL);
data.loop = pw_main_loop_new(NULL);
data.core = pw_core_new(pw_main_loop_get_loop(data.loop), NULL);
data.t = pw_core_get_type(data.core);
pw_module_load(data.core, "libpipewire-module-spa-node-factory", NULL);
@ -482,16 +501,12 @@ int main(int argc, char *argv[])
make_nodes(&data);
pw_loop_enter(data.loop);
while (data.running) {
pw_loop_iterate(data.loop, 100);
}
pw_loop_leave(data.loop);
pw_main_loop_run(data.loop);
pw_link_destroy(data.link);
pw_node_destroy(data.node);
pw_core_destroy(data.core);
pw_loop_destroy(data.loop);
pw_main_loop_destroy(data.loop);
return 0;
}

5
src/examples/meson.build
View file

@ -8,6 +8,11 @@ executable('export-v4l2',
install: false,
dependencies : [pipewire_dep],
)
executable('export-source',
'export-source.c',
install: false,
dependencies : [pipewire_dep, libm],
)
if sdl_dep.found()
executable('video-play',