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Make simple node policy

Browse source 
Make it possible to run the session manager without endpoint
modules. Add a simple node policy that links nodes.

Move the session-manager implementation and startup of the
endpoint monitors to a separate module.

Handle async set_param on the device
This commit is contained in:
Wim Taymans 2020-01-07 16:07:51 +01:00
parent 3b05896cd6
commit b312e77385
9 changed files with 1570 additions and 134 deletions
Download patch file Download diff file Expand all files Collapse all files

4
src/examples/media-session/alsa-monitor.c
View file

@ -39,9 +39,10 @@
#include <spa/utils/hook.h>
#include <spa/utils/names.h>
#include <spa/utils/keys.h>
#include <spa/param/audio/format-utils.h>
#include <spa/param/props.h>
#include <spa/pod/builder.h>
#include <spa/debug/dict.h>
#include <spa/debug/pod.h>
#include <spa/support/dbus.h>
#include <pipewire/pipewire.h>
@ -240,6 +241,7 @@ static struct node *alsa_create_node(struct device *device, uint32_t id,
res = -errno;
goto clean_node;
}
spa_list_append(&device->node_list, &node->link);
return node;

694
src/examples/media-session/bluez-endpoint.c Normal file
View file

@ -0,0 +1,694 @@
/* PipeWire
*
* Copyright © 2019 Wim Taymans
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
#include <string.h>
#include <stdio.h>
#include <errno.h>
#include <math.h>
#include <time.h>
#include "config.h"
#include <spa/node/node.h>
#include <spa/utils/hook.h>
#include <spa/utils/result.h>
#include <spa/utils/names.h>
#include <spa/utils/keys.h>
#include <spa/param/audio/format-utils.h>
#include <spa/param/props.h>
#include <spa/debug/dict.h>
#include <spa/debug/pod.h>
#include "pipewire/pipewire.h"
#include <extensions/session-manager.h>
#include "media-session.h"
#define NAME "bluez-endpoint"
#define SESSION_KEY "bluez-endpoint"
struct endpoint {
struct spa_list link;
struct impl *impl;
struct pw_properties *props;
struct node *node;
struct spa_hook listener;
struct pw_client_endpoint *client_endpoint;
struct spa_hook proxy_listener;
struct spa_hook client_endpoint_listener;
struct pw_endpoint_info info;
struct spa_param_info params[5];
struct endpoint *monitor;
struct spa_audio_info format;
struct spa_list stream_list;
};
struct stream {
struct spa_list link;
struct endpoint *endpoint;
struct pw_properties *props;
struct pw_endpoint_stream_info info;
struct spa_audio_info format;
unsigned int active:1;
};
struct node {
struct impl *impl;
struct sm_node *node;
struct device *device;
struct endpoint *endpoint;
};
struct device {
struct impl *impl;
uint32_t id;
struct sm_device *device;
struct spa_hook listener;
struct spa_list endpoint_list;
};
struct impl {
struct sm_media_session *session;
struct spa_hook listener;
};
static int client_endpoint_set_session_id(void *object, uint32_t id)
{
struct endpoint *endpoint = object;
endpoint->info.session_id = id;
return 0;
}
static int client_endpoint_set_param(void *object,
uint32_t id, uint32_t flags, const struct spa_pod *param)
{
struct endpoint *endpoint = object;
struct impl *impl = endpoint->impl;
pw_log_debug(NAME " %p: endpoint %p set param %d", impl, endpoint, id);
return pw_node_set_param((struct pw_node*)endpoint->node->node->obj.proxy,
id, flags, param);
}
static int client_endpoint_stream_set_param(void *object, uint32_t stream_id,
uint32_t id, uint32_t flags, const struct spa_pod *param)
{
return -ENOTSUP;
}
static int stream_set_active(struct endpoint *endpoint, struct stream *stream, bool active)
{
char buf[1024];
struct spa_pod_builder b = { 0, };
struct spa_pod *param;
if (stream->active == active)
return 0;
if (active) {
stream->format.info.raw.rate = 48000;
spa_pod_builder_init(&b, buf, sizeof(buf));
param = spa_format_audio_raw_build(&b, SPA_PARAM_Format, &stream->format.info.raw);
param = spa_pod_builder_add_object(&b,
SPA_TYPE_OBJECT_ParamPortConfig, SPA_PARAM_PortConfig,
SPA_PARAM_PORT_CONFIG_direction, SPA_POD_Id(endpoint->info.direction),
SPA_PARAM_PORT_CONFIG_mode, SPA_POD_Id(SPA_PARAM_PORT_CONFIG_MODE_dsp),
SPA_PARAM_PORT_CONFIG_monitor, SPA_POD_Bool(true),
SPA_PARAM_PORT_CONFIG_format, SPA_POD_Pod(param));
if (pw_log_level_enabled(SPA_LOG_LEVEL_DEBUG))
spa_debug_pod(2, NULL, param);
pw_node_set_param((struct pw_node*)endpoint->node->node->obj.proxy,
SPA_PARAM_PortConfig, 0, param);
}
stream->active = active;
return 0;
}
static int client_endpoint_create_link(void *object, const struct spa_dict *props)
{
struct endpoint *endpoint = object;
struct impl *impl = endpoint->impl;
struct pw_properties *p;
int res;
pw_log_debug(NAME" %p: endpoint %p", impl, endpoint);
if (props == NULL)
return -EINVAL;
p = pw_properties_new_dict(props);
if (p == NULL)
return -errno;
if (endpoint->info.direction == PW_DIRECTION_OUTPUT) {
const char *str;
struct sm_object *obj;
str = spa_dict_lookup(props, PW_KEY_ENDPOINT_LINK_INPUT_ENDPOINT);
if (str == NULL) {
pw_log_warn(NAME" %p: no target endpoint given", impl);
res = -EINVAL;
goto exit;
}
obj = sm_media_session_find_object(impl->session, atoi(str));
if (obj == NULL || strcmp(obj->type, PW_TYPE_INTERFACE_Endpoint) !=0) {
pw_log_warn(NAME" %p: could not find endpoint %s (%p)", impl, str, obj);
res = -EINVAL;
goto exit;
}
pw_properties_setf(p, PW_KEY_LINK_OUTPUT_NODE, "%d", endpoint->node->node->info->id);
pw_properties_setf(p, PW_KEY_LINK_OUTPUT_PORT, "-1");
pw_endpoint_create_link((struct pw_endpoint*)obj->proxy, &p->dict);
} else {
pw_properties_setf(p, PW_KEY_LINK_INPUT_NODE, "%d", endpoint->node->node->info->id);
pw_properties_setf(p, PW_KEY_LINK_INPUT_PORT, "-1");
sm_media_session_create_links(impl->session, &p->dict);
}
res = 0;
exit:
pw_properties_free(p);
return res;
}
static const struct pw_client_endpoint_events client_endpoint_events = {
PW_VERSION_CLIENT_ENDPOINT_EVENTS,
.set_session_id = client_endpoint_set_session_id,
.set_param = client_endpoint_set_param,
.stream_set_param = client_endpoint_stream_set_param,
.create_link = client_endpoint_create_link,
};
static struct stream *endpoint_add_stream(struct endpoint *endpoint)
{
struct stream *s;
const char *str;
s = calloc(1, sizeof(*s));
if (s == NULL)
return NULL;
s->props = pw_properties_new(NULL, NULL);
s->endpoint = endpoint;
if ((str = pw_properties_get(endpoint->props, PW_KEY_MEDIA_CLASS)) != NULL)
pw_properties_set(s->props, PW_KEY_MEDIA_CLASS, str);
if ((str = pw_properties_get(endpoint->props, PW_KEY_PRIORITY_SESSION)) != NULL)
pw_properties_set(s->props, PW_KEY_PRIORITY_SESSION, str);
if (endpoint->info.direction == PW_DIRECTION_OUTPUT) {
if (endpoint->monitor != NULL)
pw_properties_set(s->props, PW_KEY_ENDPOINT_STREAM_NAME, "Monitor");
else
pw_properties_set(s->props, PW_KEY_ENDPOINT_STREAM_NAME, "Capture");
} else {
pw_properties_set(s->props, PW_KEY_ENDPOINT_STREAM_NAME, "Playback");
}
s->info.version = PW_VERSION_ENDPOINT_STREAM_INFO;
s->info.id = endpoint->info.n_streams;
s->info.endpoint_id = endpoint->info.id;
s->info.name = (char*)pw_properties_get(s->props, PW_KEY_ENDPOINT_STREAM_NAME);
s->info.change_mask = PW_ENDPOINT_STREAM_CHANGE_MASK_PROPS;
s->info.props = &s->props->dict;
s->format = endpoint->format;
pw_log_debug("stream %d", s->info.id);
pw_client_endpoint_stream_update(endpoint->client_endpoint,
s->info.id,
PW_CLIENT_ENDPOINT_STREAM_UPDATE_INFO,
0, NULL,
&s->info);
spa_list_append(&endpoint->stream_list, &s->link);
endpoint->info.n_streams++;
return s;
}
static void destroy_stream(struct stream *stream)
{
struct endpoint *endpoint = stream->endpoint;
pw_client_endpoint_stream_update(endpoint->client_endpoint,
stream->info.id,
PW_CLIENT_ENDPOINT_STREAM_UPDATE_DESTROYED,
0, NULL,
&stream->info);
spa_list_remove(&stream->link);
endpoint->info.n_streams--;
pw_properties_free(stream->props);
free(stream);
}
static void update_params(void *data)
{
uint32_t n_params;
const struct spa_pod **params;
struct endpoint *endpoint = data;
struct sm_node *node = endpoint->node->node;
struct sm_param *p;
pw_log_debug(NAME" %p: endpoint", endpoint);
params = alloca(sizeof(struct spa_pod *) * node->n_params);
n_params = 0;
spa_list_for_each(p, &node->param_list, link) {
switch (p->id) {
case SPA_PARAM_Props:
case SPA_PARAM_PropInfo:
params[n_params++] = p->param;
break;
default:
break;
}
}
pw_client_endpoint_update(endpoint->client_endpoint,
PW_CLIENT_ENDPOINT_UPDATE_PARAMS |
PW_CLIENT_ENDPOINT_UPDATE_INFO,
n_params, params,
&endpoint->info);
}
static struct endpoint *create_endpoint(struct node *node, struct endpoint *monitor);
static void object_update(void *data)
{
struct endpoint *endpoint = data;
struct impl *impl = endpoint->impl;
struct sm_node *node = endpoint->node->node;
pw_log_debug(NAME" %p: endpoint %p", impl, endpoint);
if (node->obj.changed & SM_NODE_CHANGE_MASK_PARAMS)
update_params(endpoint);
}
static const struct sm_object_events object_events = {
SM_VERSION_OBJECT_EVENTS,
.update = object_update
};
static void complete_endpoint(void *data)
{
struct endpoint *endpoint = data;
struct stream *stream;
struct sm_param *p;
pw_log_debug("endpoint %p: complete", endpoint);
spa_list_for_each(p, &endpoint->node->node->param_list, link) {
struct spa_audio_info info = { 0, };
if (p->id != SPA_PARAM_EnumFormat)
continue;
if (spa_format_parse(p->param, &info.media_type, &info.media_subtype) < 0)
continue;
if (info.media_type != SPA_MEDIA_TYPE_audio ||
info.media_subtype != SPA_MEDIA_SUBTYPE_raw)
continue;
spa_pod_object_fixate((struct spa_pod_object*)p->param);
if (pw_log_level_enabled(SPA_LOG_LEVEL_DEBUG))
spa_debug_pod(2, NULL, p->param);
if (spa_format_audio_raw_parse(p->param, &info.info.raw) < 0)
continue;
if (endpoint->format.info.raw.channels < info.info.raw.channels)
endpoint->format = info;
}
pw_client_endpoint_update(endpoint->client_endpoint,
PW_CLIENT_ENDPOINT_UPDATE_INFO,
0, NULL,
&endpoint->info);
stream = endpoint_add_stream(endpoint);
if (endpoint->info.direction == PW_DIRECTION_INPUT) {
struct endpoint *monitor;
/* make monitor for sinks */
monitor = create_endpoint(endpoint->node, endpoint);
if (monitor == NULL)
return;
endpoint_add_stream(monitor);
}
stream_set_active(endpoint, stream, true);
sm_object_add_listener(&endpoint->node->node->obj, &endpoint->listener, &object_events, endpoint);
}
static void proxy_destroy(void *data)
{
struct endpoint *endpoint = data;
struct stream *s;
spa_list_consume(s, &endpoint->stream_list, link)
destroy_stream(s);
pw_properties_free(endpoint->props);
spa_list_remove(&endpoint->link);
spa_hook_remove(&endpoint->proxy_listener);
spa_hook_remove(&endpoint->client_endpoint_listener);
endpoint->client_endpoint = NULL;
}
static void proxy_bound(void *data, uint32_t id)
{
struct endpoint *endpoint = data;
endpoint->info.id = id;
}
static const struct pw_proxy_events proxy_events = {
PW_VERSION_PROXY_EVENTS,
.destroy = proxy_destroy,
.bound = proxy_bound,
};
static struct endpoint *create_endpoint(struct node *node, struct endpoint *monitor)
{
struct impl *impl = node->impl;
struct device *device = node->device;
struct pw_properties *props;
struct endpoint *endpoint;
struct pw_proxy *proxy;
const char *str, *media_class = NULL, *name = NULL;
uint32_t subscribe[4], n_subscribe = 0;
struct pw_properties *pr = node->node->obj.props;
enum pw_direction direction;
if (pr == NULL) {
errno = EINVAL;
return NULL;
}
if ((media_class = pw_properties_get(pr, PW_KEY_MEDIA_CLASS)) == NULL) {
errno = EINVAL;
return NULL;
}
props = pw_properties_new(NULL, NULL);
if (props == NULL)
return NULL;
if (strstr(media_class, "Source") != NULL) {
direction = PW_DIRECTION_OUTPUT;
} else if (strstr(media_class, "Sink") != NULL) {
direction = PW_DIRECTION_INPUT;
} else {
errno = EINVAL;
return NULL;
}
if (monitor != NULL) {
pw_properties_set(props, PW_KEY_MEDIA_CLASS, "Audio/Source");
direction = PW_DIRECTION_OUTPUT;
} else {
pw_properties_set(props, PW_KEY_MEDIA_CLASS, media_class);
}
if ((str = pw_properties_get(pr, PW_KEY_PRIORITY_SESSION)) != NULL)
pw_properties_set(props, PW_KEY_PRIORITY_SESSION, str);
if ((name = pw_properties_get(pr, PW_KEY_NODE_DESCRIPTION)) != NULL) {
if (monitor != NULL) {
pw_properties_setf(props, PW_KEY_ENDPOINT_NAME, "Monitor of %s", monitor->info.name);
pw_properties_setf(props, PW_KEY_ENDPOINT_MONITOR, "%d", monitor->info.id);
} else {
pw_properties_set(props, PW_KEY_ENDPOINT_NAME, name);
}
}
if ((str = pw_properties_get(pr, PW_KEY_DEVICE_ICON_NAME)) != NULL)
pw_properties_set(props, PW_KEY_ENDPOINT_ICON_NAME, str);
proxy = sm_media_session_create_object(impl->session,
"client-endpoint",
PW_TYPE_INTERFACE_ClientEndpoint,
PW_VERSION_CLIENT_ENDPOINT,
&props->dict, sizeof(*endpoint));
if (proxy == NULL) {
pw_properties_free(props);
return NULL;
}
endpoint = pw_proxy_get_user_data(proxy);
endpoint->impl = impl;
endpoint->node = node;
endpoint->monitor = monitor;
endpoint->props = props;
endpoint->client_endpoint = (struct pw_client_endpoint *) proxy;
endpoint->info.version = PW_VERSION_ENDPOINT_INFO;
endpoint->info.name = (char*)pw_properties_get(endpoint->props, PW_KEY_ENDPOINT_NAME);
endpoint->info.media_class = (char*)pw_properties_get(endpoint->props, PW_KEY_MEDIA_CLASS);
endpoint->info.session_id = impl->session->session->obj.id;
endpoint->info.direction = direction;
endpoint->info.flags = 0;
endpoint->info.change_mask =
PW_ENDPOINT_CHANGE_MASK_STREAMS |
PW_ENDPOINT_CHANGE_MASK_SESSION |
PW_ENDPOINT_CHANGE_MASK_PROPS |
PW_ENDPOINT_CHANGE_MASK_PARAMS;
endpoint->info.n_streams = 0;
endpoint->info.props = &endpoint->props->dict;
endpoint->params[0] = SPA_PARAM_INFO(SPA_PARAM_PropInfo, SPA_PARAM_INFO_READ);
endpoint->params[1] = SPA_PARAM_INFO(SPA_PARAM_Props, SPA_PARAM_INFO_READWRITE);
endpoint->info.params = endpoint->params;
endpoint->info.n_params = 2;
spa_list_init(&endpoint->stream_list);
pw_log_debug(NAME" %p: new endpoint %p for bluez node %p", impl, endpoint, node);
pw_proxy_add_listener(proxy,
&endpoint->proxy_listener,
&proxy_events, endpoint);
pw_client_endpoint_add_listener(endpoint->client_endpoint,
&endpoint->client_endpoint_listener,
&client_endpoint_events,
endpoint);
subscribe[n_subscribe++] = SPA_PARAM_EnumFormat;
subscribe[n_subscribe++] = SPA_PARAM_Props;
subscribe[n_subscribe++] = SPA_PARAM_PropInfo;
pw_log_debug(NAME" %p: endpoint %p proxy %p subscribe %d params", impl,
endpoint, node->node->obj.proxy, n_subscribe);
pw_node_subscribe_params((struct pw_node*)node->node->obj.proxy,
subscribe, n_subscribe);
spa_list_append(&device->endpoint_list, &endpoint->link);
if (monitor == NULL)
sm_media_session_sync(impl->session, complete_endpoint, endpoint);
return endpoint;
}
static void destroy_endpoint(struct endpoint *endpoint)
{
if (endpoint->client_endpoint)
pw_proxy_destroy((struct pw_proxy*)endpoint->client_endpoint);
}
/** fallback, one stream for each node */
static int setup_bluez_endpoint(struct device *device)
{
struct impl *impl = device->impl;
struct sm_node *n;
struct sm_device *d = device->device;
pw_log_debug(NAME" %p: device %p fallback", impl, d);
spa_list_for_each(n, &d->node_list, link) {
struct node *node;
pw_log_debug(NAME" %p: device %p has node %p", impl, d, n);
node = sm_object_add_data(&n->obj, SESSION_KEY, sizeof(struct node));
node->device = device;
node->node = n;
node->impl = impl;
node->endpoint = create_endpoint(node, NULL);
if (node->endpoint == NULL)
return -errno;
}
return 0;
}
static int activate_device(struct device *device)
{
return setup_bluez_endpoint(device);
}
static int deactivate_device(struct device *device)
{
struct endpoint *e;
spa_list_consume(e, &device->endpoint_list, link)
destroy_endpoint(e);
return 0;
}
static void device_update(void *data)
{
struct device *device = data;
struct impl *impl = device->impl;
pw_log_debug(NAME" %p: device %p %08x %08x", impl, device,
device->device->obj.avail, device->device->obj.changed);
if (!SPA_FLAG_IS_SET(device->device->obj.avail,
SM_DEVICE_CHANGE_MASK_INFO |
SM_DEVICE_CHANGE_MASK_NODES |
SM_DEVICE_CHANGE_MASK_PARAMS))
return;
// if (SPA_FLAG_IS_SET(device->device->obj.changed,
// SM_DEVICE_CHANGE_MASK_NODES |
// SM_DEVICE_CHANGE_MASK_PARAMS)) {
activate_device(device);
// }
}
static const struct sm_object_events device_events = {
SM_VERSION_OBJECT_EVENTS,
.update = device_update
};
static int
handle_device(struct impl *impl, struct sm_object *obj)
{
const char *media_class, *str;
struct device *device;
if (obj->props == NULL)
return 0;
media_class = pw_properties_get(obj->props, PW_KEY_MEDIA_CLASS);
str = pw_properties_get(obj->props, PW_KEY_DEVICE_API);
pw_log_debug(NAME" %p: device "PW_KEY_MEDIA_CLASS":%s api:%s", impl, media_class, str);
if (strstr(media_class, "Audio/") != media_class)
return 0;
if (strcmp(str, "bluez5") != 0)
return 0;
device = sm_object_add_data(obj, SESSION_KEY, sizeof(struct device));
device->impl = impl;
device->id = obj->id;
device->device = (struct sm_device*)obj;
spa_list_init(&device->endpoint_list);
pw_log_debug(NAME" %p: found bluez device %d media_class %s", impl, obj->id, media_class);
sm_object_add_listener(obj, &device->listener, &device_events, device);
return 0;
}
static void destroy_device(struct impl *impl, struct device *device)
{
deactivate_device(device);
spa_hook_remove(&device->listener);
sm_object_remove_data((struct sm_object*)device->device, SESSION_KEY);
}
static void session_create(void *data, struct sm_object *object)
{
struct impl *impl = data;
int res;
if (strcmp(object->type, PW_TYPE_INTERFACE_Device) == 0)
res = handle_device(impl, object);
else
res = 0;
if (res < 0) {
pw_log_warn(NAME" %p: can't handle global %d: %s", impl,
object->id, spa_strerror(res));
}
}
static void session_remove(void *data, struct sm_object *object)
{
struct impl *impl = data;
if (strcmp(object->type, PW_TYPE_INTERFACE_Device) == 0) {
struct device *device;
if ((device = sm_object_get_data(object, SESSION_KEY)) != NULL)
destroy_device(impl, device);
}
}
static void session_destroy(void *data)
{
struct impl *impl = data;
spa_hook_remove(&impl->listener);
free(impl);
}
static const struct sm_media_session_events session_events = {
SM_VERSION_MEDIA_SESSION_EVENTS,
.create = session_create,
.remove = session_remove,
.destroy = session_destroy,
};
int sm_bluez5_endpoint_start(struct sm_media_session *session)
{
struct impl *impl;
impl = calloc(1, sizeof(struct impl));
if (impl == NULL)
return -errno;
impl->session = session;
sm_media_session_add_listener(session, &impl->listener, &session_events, impl);
return 0;
}

98
src/examples/media-session/bluez-monitor.c
View file

@ -36,17 +36,21 @@
#include <spa/utils/result.h>
#include <spa/utils/names.h>
#include <spa/utils/result.h>
#include <spa/param/audio/format-utils.h>
#include <spa/pod/builder.h>
#include <spa/param/props.h>
#include <spa/debug/dict.h>
#include <spa/debug/pod.h>
#include "pipewire/impl.h"
#include "media-session.h"
#define NAME "bluez5-monitor"
struct device;
struct node {
struct impl *impl;
enum pw_direction direction;
struct device *device;
struct spa_list link;
uint32_t id;
@ -54,22 +58,29 @@ struct node {
struct pw_properties *props;
struct pw_impl_node *adapter;
struct pw_proxy *proxy;
struct sm_node *snode;
};
struct device {
struct impl *impl;
struct spa_list link;
uint32_t id;
uint32_t device_id;
int priority;
int profile;
struct pw_properties *props;
struct spa_handle *handle;
struct spa_device *device;
struct sm_device *sdevice;
struct spa_hook device_listener;
struct sm_device *sdevice;
struct spa_hook listener;
unsigned int appeared:1;
struct spa_list node_list;
};
@ -139,6 +150,7 @@ static struct node *bluez5_create_node(struct device *device, uint32_t id,
if (str == NULL)
str = "bluetooth-device";
pw_properties_setf(node->props, PW_KEY_DEVICE_ID, "%d", device->device_id);
pw_properties_setf(node->props, PW_KEY_NODE_NAME, "%s.%s", info->factory_name, str);
pw_properties_set(node->props, PW_KEY_NODE_DESCRIPTION, str);
pw_properties_set(node->props, "factory.name", info->factory_name);
@ -163,10 +175,13 @@ static struct node *bluez5_create_node(struct device *device, uint32_t id,
res = -errno;
goto clean_node;
}
node->proxy = sm_media_session_export(impl->session,
PW_TYPE_INTERFACE_Node,
node->snode = sm_media_session_export_node(impl->session,
&node->props->dict,
node->adapter, 0);
node->adapter);
if (node->snode == NULL) {
res = -errno;
goto clean_node;
}
spa_list_append(&device->node_list, &node->link);
@ -229,15 +244,72 @@ static struct device *bluez5_find_device(struct impl *impl, uint32_t id)
return NULL;
}
static void bluez5_update_device(struct impl *impl, struct device *device,
static void bluez5_update_device(struct impl *impl, struct device *dev,
const struct spa_device_object_info *info)
{
pw_log_debug("update device %u", device->id);
pw_log_debug("update device %u", dev->id);
if (pw_log_level_enabled(SPA_LOG_LEVEL_DEBUG))
spa_debug_dict(0, info->props);
pw_properties_update(dev->props, info->props);
}
static void set_profile(struct device *device, int index)
{
char buf[1024];
struct spa_pod_builder b = SPA_POD_BUILDER_INIT(buf, sizeof(buf));
pw_log_debug("%p: set profile %d id:%d", device, index, device->device_id);
device->profile = index;
if (device->device_id != 0) {
spa_device_set_param(device->device,
SPA_PARAM_Profile, 0,
spa_pod_builder_add_object(&b,
SPA_TYPE_OBJECT_ParamProfile, SPA_PARAM_Profile,
SPA_PARAM_PROFILE_index, SPA_POD_Int(index)));
}
}
static void device_destroy(void *data)
{
struct device *device = data;
struct node *node;
pw_log_debug("device %p destroy", device);
spa_list_consume(node, &device->node_list, link)
bluez5_remove_node(device, node);
}
static void device_update(void *data)
{
struct device *device = data;
pw_log_debug("device %p appeared %d %d", device, device->appeared, device->profile);
if (device->appeared)
return;
device->device_id = device->sdevice->obj.id;
device->appeared = true;
spa_device_add_listener(device->device,
&device->device_listener,
&bluez5_device_events, device);
set_profile(device, 1);
sm_object_sync_update(&device->sdevice->obj);
}
static const struct sm_object_events device_events = {
SM_VERSION_OBJECT_EVENTS,
.destroy = device_destroy,
.update = device_update,
};
static struct device *bluez5_create_device(struct impl *impl, uint32_t id,
const struct spa_device_object_info *info)
{
@ -288,13 +360,13 @@ static struct device *bluez5_create_device(struct impl *impl, uint32_t id,
spa_list_init(&device->node_list);
spa_device_add_listener(device->device,
&device->device_listener, &bluez5_device_events, device);
sm_object_add_listener(&device->sdevice->obj,
&device->listener,
&device_events, device);
spa_list_append(&impl->device_list, &device->link);
bluez5_update_device(impl, device, info);
return device;
clean_device:

187
src/examples/media-session/media-session.c
View file

@ -60,15 +60,15 @@
#define sm_media_session_emit_rescan(s,seq) sm_media_session_emit(s, rescan, 0, seq)
#define sm_media_session_emit_destroy(s) sm_media_session_emit(s, destroy, 0)
int sm_stream_endpoint_start(struct sm_media_session *sess);
int sm_metadata_start(struct sm_media_session *sess);
int sm_alsa_midi_start(struct sm_media_session *sess);
int sm_v4l2_monitor_start(struct sm_media_session *sess);
int sm_v4l2_endpoint_start(struct sm_media_session *sess);
int sm_bluez5_monitor_start(struct sm_media_session *sess);
int sm_alsa_monitor_start(struct sm_media_session *sess);
int sm_alsa_endpoint_start(struct sm_media_session *sess);
int sm_policy_ep_start(struct sm_media_session *sess);
int sm_policy_node_start(struct sm_media_session *sess);
int sm_session_manager_start(struct sm_media_session *sess);
/** user data to add to an object */
struct data {
@ -90,7 +90,6 @@ struct sync {
struct impl {
struct sm_media_session this;
uint32_t session_id;
struct pw_main_loop *loop;
struct spa_dbus *dbus;
@ -110,10 +109,6 @@ struct impl {
struct spa_hook_list hooks;
struct pw_client_session *client_session;
struct spa_hook proxy_client_session_listener;
struct spa_hook client_session_listener;
struct spa_list endpoint_link_list; /** list of struct endpoint_link */
struct pw_map endpoint_links; /** map of endpoint_link */
@ -639,7 +634,7 @@ static int session_init(void *object)
struct sm_session *sess = object;
struct impl *impl = SPA_CONTAINER_OF(sess->obj.session, struct impl, this);
if (sess->obj.id == impl->session_id)
if (sess->obj.id == impl->this.session_id)
impl->this.session = sess;
spa_list_init(&sess->endpoint_list);
@ -1005,27 +1000,33 @@ static const struct object_info *get_object_info(struct impl *impl, const char *
}
static struct sm_object *init_object(struct impl *impl, const struct object_info *info,
struct pw_proxy *proxy, uint32_t id,
struct pw_proxy *proxy, struct pw_proxy *handle, uint32_t id,
const struct spa_dict *props)
{
struct sm_object *obj;
obj = pw_proxy_get_user_data(proxy);
obj = pw_proxy_get_user_data(handle);
obj->session = &impl->this;
obj->id = id;
obj->type = info->type;
obj->props = props ? pw_properties_new_dict(props) : pw_properties_new(NULL, NULL);
obj->proxy = proxy;
obj->handle = handle;
obj->destroy = info->destroy;
obj->mask |= SM_OBJECT_CHANGE_MASK_PROPERTIES | SM_OBJECT_CHANGE_MASK_BIND;
obj->avail |= obj->mask;
spa_hook_list_init(&obj->hooks);
spa_list_init(&obj->data);
pw_proxy_add_listener(obj->proxy, &obj->proxy_listener, &proxy_events, obj);
if (info->events != NULL)
pw_proxy_add_object_listener(obj->proxy, &obj->object_listener, info->events, obj);
SPA_FLAG_UPDATE(obj->mask, SM_OBJECT_CHANGE_MASK_LISTENER, info->events != NULL);
if (proxy) {
pw_proxy_add_listener(obj->proxy, &obj->proxy_listener, &proxy_events, obj);
if (info->events != NULL)
pw_proxy_add_object_listener(obj->proxy, &obj->object_listener, info->events, obj);
SPA_FLAG_UPDATE(obj->mask, SM_OBJECT_CHANGE_MASK_LISTENER, info->events != NULL);
}
if (handle) {
pw_proxy_add_listener(obj->handle, &obj->handle_listener, &proxy_events, obj);
}
if (info->init)
info->init(obj);
@ -1037,14 +1038,14 @@ static struct sm_object *init_object(struct impl *impl, const struct object_info
}
static struct sm_object *
create_object(struct impl *impl, struct pw_proxy *proxy,
create_object(struct impl *impl, struct pw_proxy *proxy, struct pw_proxy *handle,
const struct spa_dict *props)
{
const char *type;
const struct object_info *info;
struct sm_object *obj;
type = pw_proxy_get_type(proxy, NULL);
type = pw_proxy_get_type(handle, NULL);
info = get_object_info(impl, type);
if (info == NULL) {
@ -1052,7 +1053,7 @@ create_object(struct impl *impl, struct pw_proxy *proxy,
errno = ENOTSUP;
return NULL;
}
obj = init_object(impl, info, proxy, SPA_ID_INVALID, props);
obj = init_object(impl, info, proxy, handle, SPA_ID_INVALID, props);
pw_log_debug(NAME" %p: created new object %p proxy %p", impl, obj, obj->proxy);
@ -1074,7 +1075,7 @@ bind_object(struct impl *impl, const struct object_info *info, uint32_t id,
res = -errno;
goto error;
}
obj = init_object(impl, info, proxy, id, props);
obj = init_object(impl, info, proxy, proxy, id, props);
pw_log_debug(NAME" %p: bound new object %p proxy %p id:%d", impl, obj, obj->proxy, obj->id);
@ -1094,19 +1095,16 @@ update_object(struct impl *impl, const struct object_info *info,
{
pw_properties_update(obj->props, props);
if (strcmp(obj->type, type) == 0)
if (obj->proxy != NULL)
return 0;
pw_log_debug(NAME" %p: update type:%s -> type:%s", impl, obj->type, type);
obj->handle = obj->proxy;
spa_hook_remove(&obj->proxy_listener);
pw_proxy_add_listener(obj->handle, &obj->handle_listener, &proxy_events, obj);
if (SPA_FLAG_IS_SET(obj->mask, SM_OBJECT_CHANGE_MASK_LISTENER))
spa_hook_remove(&obj->object_listener);
pw_log_debug(NAME" %p: update type:%s", impl, obj->type);
obj->proxy = pw_registry_bind(impl->registry,
id, info->type, info->version, 0);
if (obj->proxy == NULL)
return -errno;
obj->type = info->type;
pw_proxy_add_listener(obj->proxy, &obj->proxy_listener, &proxy_events, obj);
@ -1266,19 +1264,36 @@ struct pw_proxy *sm_media_session_export(struct sm_media_session *sess,
props, object, user_data_size);
}
struct sm_node *sm_media_session_export_node(struct sm_media_session *sess,
const struct spa_dict *props, struct pw_impl_node *object)
{
struct impl *impl = SPA_CONTAINER_OF(sess, struct impl, this);
struct sm_node *node;
struct pw_proxy *handle;
pw_log_debug(NAME " %p: node %p", impl, object);
handle = pw_core_export(impl->monitor_core, PW_TYPE_INTERFACE_Node,
props, object, sizeof(struct sm_node));
node = (struct sm_node *) create_object(impl, NULL, handle, props);
return node;
}
struct sm_device *sm_media_session_export_device(struct sm_media_session *sess,
const struct spa_dict *props, struct spa_device *object)
{
struct impl *impl = SPA_CONTAINER_OF(sess, struct impl, this);
struct sm_device *device;
struct pw_proxy *proxy;
struct pw_proxy *handle;
pw_log_debug(NAME " %p: device %p", impl, object);
proxy = pw_core_export(impl->monitor_core, SPA_TYPE_INTERFACE_Device,
handle = pw_core_export(impl->monitor_core, SPA_TYPE_INTERFACE_Device,
props, object, sizeof(struct sm_device));
device = (struct sm_device *) create_object(impl, proxy, props);
device = (struct sm_device *) create_object(impl, NULL, handle, props);
return device;
}
@ -1308,7 +1323,7 @@ struct sm_node *sm_media_session_create_node(struct sm_media_session *sess,
props,
sizeof(struct sm_node));
node = (struct sm_node *)create_object(impl, proxy, props);
node = (struct sm_node *)create_object(impl, proxy, proxy, props);
return node;
}
@ -1322,7 +1337,7 @@ static void check_endpoint_link(struct endpoint_link *link)
spa_list_remove(&link->link);
pw_map_remove(&link->impl->endpoint_links, link->id);
pw_client_session_link_update(link->impl->client_session,
pw_client_session_link_update(link->impl->this.client_session,
link->id,
PW_CLIENT_SESSION_LINK_UPDATE_DESTROYED,
0, NULL, NULL);
@ -1495,7 +1510,7 @@ int sm_media_session_create_links(struct sm_media_session *sess,
if (link != NULL) {
/* now create the endpoint link */
pw_client_session_link_update(impl->client_session,
pw_client_session_link_update(impl->this.client_session,
link->id,
PW_CLIENT_SESSION_UPDATE_INFO,
0, NULL,
@ -1504,73 +1519,6 @@ int sm_media_session_create_links(struct sm_media_session *sess,
return res;
}
/**
* Session implementation
*/
static int client_session_set_param(void *object, uint32_t id, uint32_t flags,
const struct spa_pod *param)
{
struct impl *impl = object;
pw_proxy_error((struct pw_proxy*)impl->client_session,
-ENOTSUP, "Session:SetParam not supported");
return -ENOTSUP;
}
static int client_session_link_set_param(void *object, uint32_t link_id, uint32_t id, uint32_t flags,
const struct spa_pod *param)
{
struct impl *impl = object;
pw_proxy_error((struct pw_proxy*)impl->client_session,
-ENOTSUP, "Session:LinkSetParam not supported");
return -ENOTSUP;
}
static int client_session_link_request_state(void *object, uint32_t link_id, uint32_t state)
{
return -ENOTSUP;
}
static const struct pw_client_session_events client_session_events = {
PW_VERSION_CLIENT_SESSION_METHODS,
.set_param = client_session_set_param,
.link_set_param = client_session_link_set_param,
.link_request_state = client_session_link_request_state,
};
static void proxy_client_session_bound(void *data, uint32_t id)
{
struct impl *impl = data;
struct pw_session_info info;
impl->session_id = id;
spa_zero(info);
info.version = PW_VERSION_SESSION_INFO;
info.id = id;
pw_log_debug("got sesssion id:%d", id);
pw_client_session_update(impl->client_session,
PW_CLIENT_SESSION_UPDATE_INFO,
0, NULL,
&info);
/* start monitors */
sm_metadata_start(&impl->this);
sm_alsa_midi_start(&impl->this);
sm_bluez5_monitor_start(&impl->this);
sm_alsa_monitor_start(&impl->this);
sm_alsa_endpoint_start(&impl->this);
sm_v4l2_monitor_start(&impl->this);
sm_v4l2_endpoint_start(&impl->this);
sm_stream_endpoint_start(&impl->this);
}
static const struct pw_proxy_events proxy_client_session_events = {
PW_VERSION_PROXY_EVENTS,
.bound = proxy_client_session_bound,
};
static int start_session(struct impl *impl)
{
impl->monitor_core = pw_context_connect(impl->this.context, NULL, 0);
@ -1578,21 +1526,6 @@ static int start_session(struct impl *impl)
pw_log_error("can't start monitor: %m");
return -errno;
}
impl->client_session = pw_core_create_object(impl->monitor_core,
"client-session",
PW_TYPE_INTERFACE_ClientSession,
PW_VERSION_CLIENT_SESSION,
NULL, 0);
pw_proxy_add_listener((struct pw_proxy*)impl->client_session,
&impl->proxy_client_session_listener,
&proxy_client_session_events, impl);
pw_client_session_add_listener(impl->client_session,
&impl->client_session_listener,
&client_session_events, impl);
return 0;
}
@ -1610,8 +1543,17 @@ static void core_done(void *data, uint32_t id, int seq)
}
}
if (impl->rescan_seq == seq) {
struct sm_object *obj, *to;
pw_log_trace(NAME" %p: rescan %u %d", impl, id, seq);
sm_media_session_emit_rescan(impl, seq);
spa_list_for_each_safe(obj, to, &impl->global_list, link) {
pw_log_trace(NAME" %p: obj %p %08x", impl, obj, obj->changed);
if (obj->changed)
sm_object_emit_update(obj);
obj->changed = 0;
}
}
}
@ -1668,7 +1610,6 @@ static int start_policy(struct impl *impl)
&impl->registry_listener,
&registry_events, impl);
sm_policy_ep_start(&impl->this);
return 0;
}
@ -1685,8 +1626,6 @@ static void session_shutdown(struct impl *impl)
pw_proxy_destroy((struct pw_proxy*)impl->registry);
if (impl->policy_core)
pw_core_disconnect(impl->policy_core);
if (impl->client_session)
pw_proxy_destroy((struct pw_proxy*)impl->client_session);
if (impl->monitor_core)
pw_core_disconnect(impl->monitor_core);
}
@ -1732,6 +1671,16 @@ int main(int argc, char *argv[])
if ((res = start_policy(&impl)) < 0)
goto exit;
sm_metadata_start(&impl.this);
sm_alsa_midi_start(&impl.this);
sm_bluez5_monitor_start(&impl.this);
sm_alsa_monitor_start(&impl.this);
sm_v4l2_monitor_start(&impl.this);
sm_policy_node_start(&impl.this);
// sm_session_manager_start(&impl.this);
pw_main_loop_run(impl.loop);
exit:

6
src/examples/media-session/media-session.h
View file

@ -27,6 +27,7 @@
#define SM_MEDIA_SESSION_H
#include <spa/monitor/device.h>
#include <pipewire/impl.h>
#ifdef __cplusplus
extern "C" {
@ -207,6 +208,9 @@ struct sm_media_session_events {
struct sm_media_session {
struct sm_session *session; /** session object managed by this session */
uint32_t session_id;
struct pw_client_session *client_session;
struct pw_loop *loop; /** the main loop */
struct pw_context *context;
@ -229,6 +233,8 @@ struct pw_proxy *sm_media_session_export(struct sm_media_session *sess,
const char *type, const struct spa_dict *props,
void *object, size_t user_data_size);
struct sm_node *sm_media_session_export_node(struct sm_media_session *sess,
const struct spa_dict *props, struct pw_impl_node *node);
struct sm_device *sm_media_session_export_device(struct sm_media_session *sess,
const struct spa_dict *props, struct spa_device *device);

512
src/examples/media-session/policy-node.c Normal file
View file

@ -0,0 +1,512 @@
/* PipeWire
*
* Copyright © 2019 Wim Taymans
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
#include <string.h>
#include <stdio.h>
#include <errno.h>
#include <math.h>
#include <time.h>
#include "config.h"
#include <spa/node/node.h>
#include <spa/utils/hook.h>
#include <spa/param/audio/format-utils.h>
#include <spa/param/props.h>
#include <spa/debug/pod.h>
#include "pipewire/pipewire.h"
#include "media-session.h"
#define NAME "policy-node"
#define SESSION_KEY "policy-node"
#define DEFAULT_CHANNELS 2
#define DEFAULT_SAMPLERATE 48000
#define DEFAULT_IDLE_SECONDS 3
struct impl {
struct timespec now;
struct sm_media_session *session;
struct spa_hook listener;
struct pw_context *context;
struct spa_list node_list;
int seq;
};
struct node {
struct sm_node *obj;
uint32_t id;
struct impl *impl;
struct spa_list link; /**< link in impl node_list */
enum pw_direction direction;
struct spa_hook listener;
uint32_t linked;
uint32_t client_id;
int32_t priority;
#define NODE_TYPE_UNKNOWN 0
#define NODE_TYPE_STREAM 1
#define NODE_TYPE_DEVICE 2
uint32_t type;
char *media;
struct spa_audio_info format;
uint64_t plugged;
unsigned int active:1;
unsigned int exclusive:1;
unsigned int enabled:1;
unsigned int busy:1;
};
static int activate_node(struct node *node)
{
struct impl *impl = node->impl;
struct sm_param *p;
char buf[1024];
struct spa_pod_builder b = { 0, };
struct spa_pod *param;
pw_log_debug(NAME" %p: node %p activate", impl, node);
spa_list_for_each(p, &node->obj->param_list, link) {
struct spa_audio_info info = { 0, };
if (p->id != SPA_PARAM_EnumFormat)
continue;
if (spa_format_parse(p->param, &info.media_type, &info.media_subtype) < 0)
continue;
if (info.media_type != SPA_MEDIA_TYPE_audio ||
info.media_subtype != SPA_MEDIA_SUBTYPE_raw)
continue;
spa_pod_object_fixate((struct spa_pod_object*)p->param);
if (pw_log_level_enabled(SPA_LOG_LEVEL_DEBUG))
spa_debug_pod(2, NULL, p->param);
if (spa_format_audio_raw_parse(p->param, &info.info.raw) < 0)
continue;
if (node->format.info.raw.channels < info.info.raw.channels)
node->format = info;
}
node->format.info.raw.rate = 48000;
spa_pod_builder_init(&b, buf, sizeof(buf));
param = spa_format_audio_raw_build(&b, SPA_PARAM_Format, &node->format.info.raw);
param = spa_pod_builder_add_object(&b,
SPA_TYPE_OBJECT_ParamPortConfig, SPA_PARAM_PortConfig,
SPA_PARAM_PORT_CONFIG_direction, SPA_POD_Id(node->direction),
SPA_PARAM_PORT_CONFIG_mode, SPA_POD_Id(SPA_PARAM_PORT_CONFIG_MODE_dsp),
SPA_PARAM_PORT_CONFIG_monitor, SPA_POD_Bool(true),
SPA_PARAM_PORT_CONFIG_format, SPA_POD_Pod(param));
if (pw_log_level_enabled(SPA_LOG_LEVEL_DEBUG))
spa_debug_pod(2, NULL, param);
pw_node_set_param((struct pw_node*)node->obj->obj.proxy,
SPA_PARAM_PortConfig, 0, param);
node->active = true;
return 0;
}
static void object_update(void *data)
{
struct node *node = data;
struct impl *impl = node->impl;
pw_log_debug(NAME" %p: node %p %08x", impl, node, node->obj->obj.changed);
if (node->obj->obj.avail & SM_NODE_CHANGE_MASK_PARAMS &&
!node->active)
activate_node(node);
}
static const struct sm_object_events object_events = {
SM_VERSION_OBJECT_EVENTS,
.update = object_update
};
static int
handle_node(struct impl *impl, struct sm_object *object)
{
const char *str, *media_class;
enum pw_direction direction;
struct node *node;
uint32_t client_id = SPA_ID_INVALID;
if (object->props) {
if ((str = pw_properties_get(object->props, PW_KEY_CLIENT_ID)) != NULL)
client_id = atoi(str);
}
media_class = object->props ? pw_properties_get(object->props, PW_KEY_MEDIA_CLASS) : NULL;
pw_log_debug(NAME" %p: node "PW_KEY_MEDIA_CLASS" %s", impl, media_class);
if (media_class == NULL)
return 0;
node = sm_object_add_data(object, SESSION_KEY, sizeof(struct node));
node->obj = (struct sm_node*)object;
node->id = object->id;
node->impl = impl;
node->client_id = client_id;
node->type = NODE_TYPE_UNKNOWN;
node->enabled = true;
spa_list_append(&impl->node_list, &node->link);
if (strstr(media_class, "Stream/") == media_class) {
media_class += strlen("Stream/");
if (strstr(media_class, "Output/") == media_class) {
direction = PW_DIRECTION_OUTPUT;
media_class += strlen("Output/");
}
else if (strstr(media_class, "Input/") == media_class) {
direction = PW_DIRECTION_INPUT;
media_class += strlen("Input/");
}
else
return 0;
node->direction = direction;
node->type = NODE_TYPE_STREAM;
node->media = strdup(media_class);
pw_log_debug(NAME "%p: node %d is stream %s", impl, object->id, node->media);
}
else {
const char *media;
if (strstr(media_class, "Audio/") == media_class) {
media_class += strlen("Audio/");
media = "Audio";
}
else if (strstr(media_class, "Video/") == media_class) {
media_class += strlen("Video/");
media = "Video";
}
else
return 0;
if (strcmp(media_class, "Sink") == 0)
direction = PW_DIRECTION_INPUT;
else if (strcmp(media_class, "Source") == 0)
direction = PW_DIRECTION_OUTPUT;
else
return 0;
node->direction = direction;
node->type = NODE_TYPE_DEVICE;
node->media = strdup(media);
pw_log_debug(NAME" %p: node %d '%s' prio:%d", impl,
object->id, node->media, node->priority);
}
node->obj->obj.mask |= SM_NODE_CHANGE_MASK_PARAMS;
sm_object_add_listener(&node->obj->obj, &node->listener, &object_events, node);
return 1;
}
static void destroy_node(struct impl *impl, struct node *node)
{
spa_list_remove(&node->link);
free(node->media);
sm_object_remove_data((struct sm_object*)node->obj, SESSION_KEY);
}
static void session_create(void *data, struct sm_object *object)
{
struct impl *impl = data;
int res;
if (strcmp(object->type, PW_TYPE_INTERFACE_Node) == 0)
res = handle_node(impl, object);
else
res = 0;
if (res < 0) {
pw_log_warn(NAME" %p: can't handle global %d", impl, object->id);
}
else
sm_media_session_schedule_rescan(impl->session);
}
static void session_remove(void *data, struct sm_object *object)
{
struct impl *impl = data;
pw_log_debug(NAME " %p: remove global '%d'", impl, object->id);
if (strcmp(object->type, PW_TYPE_INTERFACE_Node) == 0) {
struct node *node;
if ((node = sm_object_get_data(object, SESSION_KEY)) != NULL)
destroy_node(impl, node);
}
sm_media_session_schedule_rescan(impl->session);
}
struct find_data {
struct impl *impl;
struct node *target;
struct node *node;
bool exclusive;
int priority;
uint64_t plugged;
};
static int find_node(void *data, struct node *node)
{
struct find_data *find = data;
struct impl *impl = find->impl;
int priority = 0;
uint64_t plugged = 0;
pw_log_debug(NAME " %p: looking at node '%d' enabled:%d busy:%d exclusive:%d",
impl, node->id, node->enabled, node->busy, node->exclusive);
if (!node->enabled || node->type == NODE_TYPE_UNKNOWN)
return 0;
if (node->direction == find->target->direction) {
pw_log_debug(".. same direction");
return 0;
}
if (strcmp(node->media, find->target->media) != 0) {
pw_log_debug(".. incompatible media %s <-> %s", node->media, find->target->media);
return 0;
}
plugged = node->plugged;
priority = node->priority;
if ((find->exclusive && node->busy) || node->exclusive) {
pw_log_debug(NAME " %p: node '%d' in use", impl, node->id);
return 0;
}
pw_log_debug(NAME " %p: found node '%d' %"PRIu64" prio:%d", impl,
node->id, plugged, priority);
if (find->node == NULL ||
priority > find->priority ||
(priority == find->priority && plugged > find->plugged)) {
pw_log_debug(NAME " %p: new best %d %" PRIu64, impl, priority, plugged);
find->node = node;
find->priority = priority;
find->plugged = plugged;
}
return 0;
}
static int link_nodes(struct node *node, struct node *peer)
{
struct impl *impl = node->impl;
struct pw_properties *props;
pw_log_debug(NAME " %p: link nodes %d %d", impl, node->id, peer->id);
if (node->direction == PW_DIRECTION_INPUT) {
struct node *t = node;
node = peer;
peer = t;
}
props = pw_properties_new(NULL, NULL);
pw_properties_setf(props, PW_KEY_LINK_OUTPUT_NODE, "%d", node->id);
pw_properties_setf(props, PW_KEY_LINK_INPUT_NODE, "%d", peer->id);
pw_log_debug(NAME " %p: node %d -> node %d", impl,
node->id, peer->id);
sm_media_session_create_links(impl->session, &props->dict);
pw_properties_free(props);
node->linked++;
peer->linked++;
return 0;
}
static int rescan_node(struct impl *impl, struct node *n)
{
struct spa_dict *props;
const char *str;
bool exclusive;
struct find_data find;
struct pw_node_info *info;
struct node *peer;
struct sm_object *obj;
if (n->type == NODE_TYPE_DEVICE)
return 0;
if (!n->active)
return 0;
if (n->obj->info == NULL || n->obj->info->props == NULL) {
pw_log_debug(NAME " %p: node %d has no properties", impl, n->id);
return 0;
}
if (n->linked > 0) {
pw_log_debug(NAME " %p: node %d is already linked", impl, n->id);
return 0;
}
info = n->obj->info;
props = info->props;
str = spa_dict_lookup(props, PW_KEY_NODE_AUTOCONNECT);
if (str == NULL || !pw_properties_parse_bool(str)) {
pw_log_debug(NAME" %p: node %d does not need autoconnect", impl, n->id);
return 0;
}
if (n->media == NULL) {
pw_log_debug(NAME" %p: node %d has unknown media", impl, n->id);
return 0;
}
spa_zero(find);
if ((str = spa_dict_lookup(props, PW_KEY_NODE_EXCLUSIVE)) != NULL)
exclusive = pw_properties_parse_bool(str);
else
exclusive = false;
find.impl = impl;
find.target = n;
find.exclusive = exclusive;
pw_log_info(NAME " %p: exclusive:%d", impl, exclusive);
str = spa_dict_lookup(props, PW_KEY_NODE_TARGET);
if (str != NULL) {
uint32_t path_id = atoi(str);
pw_log_info(NAME " %p: target:%d", impl, path_id);
if ((obj = sm_media_session_find_object(impl->session, path_id)) != NULL) {
if (strcmp(obj->type, PW_TYPE_INTERFACE_Node) == 0) {
peer = sm_object_get_data(obj, SESSION_KEY);
goto do_link;
}
}
}
spa_list_for_each(peer, &impl->node_list, link)
find_node(&find, peer);
if (find.node == NULL) {
struct sm_object *obj;
pw_log_warn(NAME " %p: no node found for %d", impl, n->id);
str = spa_dict_lookup(props, PW_KEY_NODE_DONT_RECONNECT);
if (str != NULL && pw_properties_parse_bool(str)) {
// pw_registry_destroy(impl->registry, n->id);
}
obj = sm_media_session_find_object(impl->session, n->client_id);
if (obj && strcmp(obj->type, PW_TYPE_INTERFACE_Client) == 0) {
pw_client_error((struct pw_client*)obj->proxy,
n->id, -ENOENT, "no node available");
}
return -ENOENT;
}
peer = find.node;
if (exclusive && peer->busy) {
pw_log_warn(NAME" %p: node %d busy, can't get exclusive access", impl, peer->id);
return -EBUSY;
}
peer->exclusive = exclusive;
pw_log_debug(NAME" %p: linking to node '%d'", impl, peer->id);
peer->busy = true;
do_link:
link_nodes(n, peer);
return 1;
}
static void session_rescan(void *data, int seq)
{
struct impl *impl = data;
struct node *node;
clock_gettime(CLOCK_MONOTONIC, &impl->now);
pw_log_debug(NAME" %p: rescan", impl);
spa_list_for_each(node, &impl->node_list, link)
rescan_node(impl, node);
}
static void session_destroy(void *data)
{
struct impl *impl = data;
spa_hook_remove(&impl->listener);
free(impl);
}
static const struct sm_media_session_events session_events = {
SM_VERSION_MEDIA_SESSION_EVENTS,
.create = session_create,
.remove = session_remove,
.rescan = session_rescan,
.destroy = session_destroy,
};
int sm_policy_node_start(struct sm_media_session *session)
{
struct impl *impl;
impl = calloc(1, sizeof(struct impl));
if (impl == NULL)
return -errno;
impl->session = session;
impl->context = session->context;
spa_list_init(&impl->node_list);
sm_media_session_add_listener(impl->session, &impl->listener, &session_events, impl);
return 0;
}

170
src/examples/media-session/session-manager.c Normal file
View file

@ -0,0 +1,170 @@
/* PipeWire
*
* Copyright © 2020 Wim Taymans
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
#include <string.h>
#include <stdio.h>
#include <errno.h>
#include <math.h>
#include <time.h>
#include "config.h"
#include <spa/node/node.h>
#include <spa/utils/hook.h>
#include <spa/param/audio/format-utils.h>
#include <spa/param/props.h>
#include <spa/debug/pod.h>
#include "pipewire/pipewire.h"
#include "extensions/session-manager.h"
#include "media-session.h"
#define NAME "session-manager"
#define SESSION_KEY "session-manager"
int sm_stream_endpoint_start(struct sm_media_session *sess);
int sm_v4l2_endpoint_start(struct sm_media_session *sess);
int sm_bluez5_endpoint_start(struct sm_media_session *sess);
int sm_alsa_endpoint_start(struct sm_media_session *sess);
int sm_policy_ep_start(struct sm_media_session *sess);
struct impl {
struct timespec now;
struct sm_media_session *session;
struct spa_hook listener;
struct pw_context *context;
struct spa_hook proxy_client_session_listener;
struct spa_hook client_session_listener;
};
/**
* Session implementation
*/
static int client_session_set_param(void *object, uint32_t id, uint32_t flags,
const struct spa_pod *param)
{
struct impl *impl = object;
pw_proxy_error((struct pw_proxy*)impl->session->client_session,
-ENOTSUP, "Session:SetParam not supported");
return -ENOTSUP;
}
static int client_session_link_set_param(void *object, uint32_t link_id, uint32_t id, uint32_t flags,
const struct spa_pod *param)
{
struct impl *impl = object;
pw_proxy_error((struct pw_proxy*)impl->session->client_session,
-ENOTSUP, "Session:LinkSetParam not supported");
return -ENOTSUP;
}
static int client_session_link_request_state(void *object, uint32_t link_id, uint32_t state)
{
return -ENOTSUP;
}
static const struct pw_client_session_events client_session_events = {
PW_VERSION_CLIENT_SESSION_METHODS,
.set_param = client_session_set_param,
.link_set_param = client_session_link_set_param,
.link_request_state = client_session_link_request_state,
};
static void proxy_client_session_bound(void *data, uint32_t id)
{
struct impl *impl = data;
struct pw_session_info info;
impl->session->session_id = id;
spa_zero(info);
info.version = PW_VERSION_SESSION_INFO;
info.id = id;
pw_log_debug("got sesssion id:%d", id);
pw_client_session_update(impl->session->client_session,
PW_CLIENT_SESSION_UPDATE_INFO,
0, NULL,
&info);
/* start endpoints */
sm_bluez5_endpoint_start(impl->session);
sm_alsa_endpoint_start(impl->session);
sm_v4l2_endpoint_start(impl->session);
sm_stream_endpoint_start(impl->session);
sm_policy_ep_start(impl->session);
}
static const struct pw_proxy_events proxy_client_session_events = {
PW_VERSION_PROXY_EVENTS,
.bound = proxy_client_session_bound,
};
static void session_destroy(void *data)
{
struct impl *impl = data;
spa_hook_remove(&impl->listener);
free(impl);
}
static const struct sm_media_session_events session_events = {
SM_VERSION_MEDIA_SESSION_EVENTS,
.destroy = session_destroy,
};
int sm_session_manager_start(struct sm_media_session *session)
{
struct impl *impl;
impl = calloc(1, sizeof(struct impl));
if (impl == NULL)
return -errno;
impl->session = session;
impl->context = session->context;
sm_media_session_add_listener(impl->session, &impl->listener, &session_events, impl);
session->client_session = (struct pw_client_session *)
sm_media_session_create_object(impl->session,
"client-session",
PW_TYPE_INTERFACE_ClientSession,
PW_VERSION_CLIENT_SESSION,
NULL, 0);
pw_proxy_add_listener((struct pw_proxy*)session->client_session,
&impl->proxy_client_session_listener,
&proxy_client_session_events, impl);
pw_client_session_add_listener(session->client_session,
&impl->client_session_listener,
&client_session_events, impl);
return 0;
}

3
src/examples/meson.build
View file

@ -49,10 +49,13 @@ executable('media-session',
'media-session/alsa-monitor.c',
'media-session/alsa-endpoint.c',
'media-session/bluez-monitor.c',
'media-session/bluez-endpoint.c',
'media-session/media-session.c',
'media-session/session-manager.c',
'media-session/metadata.c',
'media-session/stream-endpoint.c',
'media-session/policy-ep.c',
'media-session/policy-node.c',
'media-session/v4l2-monitor.c',
'media-session/v4l2-endpoint.c',
c_args : [ '-D_GNU_SOURCE' ],

30
src/pipewire/impl-device.c
View file

@ -318,16 +318,44 @@ static int device_enum_params(void *object, int seq, uint32_t id, uint32_t start
return res;
}
static void result_device_done(void *data, int seq, int res, uint32_t type, const void *result)
{
struct resource_data *d = data;
pw_log_debug(NAME" %p: async result %d %d (%d/%d)", d->device,
res, seq, d->seq, d->end);
if (seq == d->end) {
spa_hook_remove(&d->listener);
d->end = -1;
pw_impl_client_set_busy(d->resource->client, false);
}
}
static int device_set_param(void *object, uint32_t id, uint32_t flags,
const struct spa_pod *param)
{
struct resource_data *data = object;
struct pw_resource *resource = data->resource;
struct pw_impl_device *device = data->device;
struct pw_impl_client *client = resource->client;
int res;
static const struct spa_device_events device_events = {
SPA_VERSION_DEVICE_EVENTS,
.result = result_device_done,
};
if ((res = spa_device_set_param(device->device, id, flags, param)) < 0)
if ((res = spa_device_set_param(device->device, id, flags, param)) < 0) {
pw_resource_error(resource, res, spa_strerror(res));
} else if (SPA_RESULT_IS_ASYNC(res)) {
pw_impl_client_set_busy(client, true);
data->data.data = data;
if (data->end == -1)
spa_device_add_listener(device->device, &data->listener,
&device_events, data);
data->seq = res;
data->end = spa_device_sync(device->device, res);
}
return res;
}