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pipewire/pinos/server/link.c
Wim Taymans 67dd3adb87 port to meson
2016-09-26 12:15:52 +02:00

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/* Pinos
* Copyright (C) 2015 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 <string.h>
#include <gio/gio.h>
#include <spa/include/spa/video/format.h>
#include <spa/include/spa/debug.h>
#include "pinos/client/pinos.h"
#include "pinos/client/enumtypes.h"
#include "pinos/server/link.h"
#include "pinos/dbus/org-pinos.h"
#define PINOS_LINK_GET_PRIVATE(obj) \
(G_TYPE_INSTANCE_GET_PRIVATE ((obj), PINOS_TYPE_LINK, PinosLinkPrivate))
#define MAX_BUFFERS 16
struct _PinosLinkPrivate
{
PinosDaemon *daemon;
PinosLink1 *iface;
gchar *object_path;
GPtrArray *format_filter;
PinosProperties *properties;
PinosLinkState state;
GError *error;
uint32_t async_busy;
SpaBuffer *in_buffers[MAX_BUFFERS];
unsigned int n_in_buffers;
SpaBuffer *out_buffers[MAX_BUFFERS];
unsigned int n_out_buffers;
};
G_DEFINE_TYPE (PinosLink, pinos_link, G_TYPE_OBJECT);
enum
{
PROP_0,
PROP_DAEMON,
PROP_OBJECT_PATH,
PROP_OUTPUT_NODE,
PROP_OUTPUT_ID,
PROP_OUTPUT_PORT,
PROP_INPUT_NODE,
PROP_INPUT_ID,
PROP_INPUT_PORT,
PROP_FORMAT_FILTER,
PROP_PROPERTIES,
PROP_STATE,
};
enum
{
SIGNAL_REMOVE,
LAST_SIGNAL
};
static guint signals[LAST_SIGNAL] = { 0 };
static void
pinos_link_get_property (GObject *_object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
PinosLink *this = PINOS_LINK (_object);
PinosLinkPrivate *priv = this->priv;
switch (prop_id) {
case PROP_DAEMON:
g_value_set_object (value, priv->daemon);
break;
case PROP_OBJECT_PATH:
g_value_set_string (value, priv->object_path);
break;
case PROP_OUTPUT_NODE:
g_value_set_object (value, this->output_node);
break;
case PROP_OUTPUT_ID:
g_value_set_uint (value, this->output_id);
break;
case PROP_OUTPUT_PORT:
g_value_set_uint (value, this->output_port);
break;
case PROP_INPUT_NODE:
g_value_set_object (value, this->input_node);
break;
case PROP_INPUT_ID:
g_value_set_uint (value, this->input_id);
break;
case PROP_INPUT_PORT:
g_value_set_uint (value, this->input_port);
break;
case PROP_FORMAT_FILTER:
g_value_set_boxed (value, priv->format_filter);
break;
case PROP_PROPERTIES:
g_value_set_boxed (value, priv->properties);
break;
case PROP_STATE:
g_value_set_enum (value, priv->state);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (this, prop_id, pspec);
break;
}
}
static void
pinos_link_set_property (GObject *_object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
PinosLink *this = PINOS_LINK (_object);
PinosLinkPrivate *priv = this->priv;
switch (prop_id) {
case PROP_DAEMON:
priv->daemon = g_value_dup_object (value);
break;
case PROP_OBJECT_PATH:
priv->object_path = g_value_dup_string (value);
break;
case PROP_OUTPUT_NODE:
this->output_node = g_value_dup_object (value);
break;
case PROP_OUTPUT_ID:
this->output_id = g_value_get_uint (value);
break;
case PROP_OUTPUT_PORT:
this->output_port = g_value_get_uint (value);
break;
case PROP_INPUT_NODE:
this->input_node = g_value_dup_object (value);
break;
case PROP_INPUT_ID:
this->input_id = g_value_get_uint (value);
break;
case PROP_INPUT_PORT:
this->input_port = g_value_get_uint (value);
break;
case PROP_FORMAT_FILTER:
priv->format_filter = g_value_dup_boxed (value);
break;
case PROP_PROPERTIES:
priv->properties = g_value_dup_boxed (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (this, prop_id, pspec);
break;
}
}
static void
link_register_object (PinosLink *this)
{
PinosLinkPrivate *priv = this->priv;
PinosObjectSkeleton *skel;
gchar *name;
name = g_strdup_printf (PINOS_DBUS_OBJECT_LINK);
skel = pinos_object_skeleton_new (name);
g_free (name);
pinos_object_skeleton_set_link1 (skel, priv->iface);
g_free (priv->object_path);
priv->object_path = pinos_daemon_export_uniquely (priv->daemon, G_DBUS_OBJECT_SKELETON (skel));
g_object_unref (skel);
g_debug ("link %p: register object %s", this, priv->object_path);
}
static void
link_unregister_object (PinosLink *this)
{
PinosLinkPrivate *priv = this->priv;
g_debug ("link %p: unregister object", this);
pinos_daemon_unexport (priv->daemon, priv->object_path);
}
static void
pinos_link_update_state (PinosLink *link, PinosLinkState state)
{
PinosLinkPrivate *priv = link->priv;
if (state != priv->state) {
g_clear_error (&priv->error);
g_debug ("link %p: update state %s -> %s", link,
pinos_link_state_as_string (priv->state),
pinos_link_state_as_string (state));
priv->state = state;
g_object_notify (G_OBJECT (link), "state");
}
}
static void
pinos_link_report_error (PinosLink *link, GError *error)
{
PinosLinkPrivate *priv = link->priv;
g_clear_error (&priv->error);
priv->error = error;
priv->state = PINOS_LINK_STATE_ERROR;
g_debug ("link %p: got error state %s", link, error->message);
g_object_notify (G_OBJECT (link), "state");
}
static SpaResult
do_negotiate (PinosLink *this, SpaNodeState in_state, SpaNodeState out_state)
{
SpaResult res;
SpaFormat *filter = NULL, *format;
void *istate = NULL, *ostate = NULL;
GError *error = NULL;
if (in_state != SPA_NODE_STATE_CONFIGURE && out_state != SPA_NODE_STATE_CONFIGURE)
return SPA_RESULT_OK;
pinos_link_update_state (this, PINOS_LINK_STATE_NEGOTIATING);
/* both ports need a format */
if (in_state == SPA_NODE_STATE_CONFIGURE && out_state == SPA_NODE_STATE_CONFIGURE) {
g_debug ("link %p: doing negotiate format", this);
again:
if ((res = spa_node_port_enum_formats (this->input_node->node,
this->input_port,
&filter,
NULL,
&istate)) < 0) {
if (res == SPA_RESULT_ENUM_END && istate != NULL) {
g_set_error (&error,
PINOS_ERROR,
PINOS_ERROR_FORMAT_NEGOTIATION,
"error input enum formats: %d", res);
goto error;
}
}
g_debug ("Try filter:");
spa_debug_format (filter);
if ((res = spa_node_port_enum_formats (this->output_node->node,
this->output_port,
&format,
filter,
&ostate)) < 0) {
if (res == SPA_RESULT_ENUM_END) {
ostate = NULL;
goto again;
}
g_set_error (&error,
PINOS_ERROR,
PINOS_ERROR_FORMAT_NEGOTIATION,
"error output enum formats: %d", res);
goto error;
}
g_debug ("Got filtered:");
spa_debug_format (format);
spa_format_fixate (format);
} else if (in_state == SPA_NODE_STATE_CONFIGURE && out_state > SPA_NODE_STATE_CONFIGURE) {
/* only input needs format */
if ((res = spa_node_port_get_format (this->output_node->node,
this->output_port,
(const SpaFormat **)&format)) < 0) {
g_set_error (&error,
PINOS_ERROR,
PINOS_ERROR_FORMAT_NEGOTIATION,
"error get output format: %d", res);
goto error;
}
} else if (out_state == SPA_NODE_STATE_CONFIGURE && in_state > SPA_NODE_STATE_CONFIGURE) {
/* only output needs format */
if ((res = spa_node_port_get_format (this->input_node->node,
this->input_port,
(const SpaFormat **)&format)) < 0) {
g_set_error (&error,
PINOS_ERROR,
PINOS_ERROR_FORMAT_NEGOTIATION,
"error get input format: %d", res);
goto error;
}
} else
return SPA_RESULT_OK;
g_debug ("link %p: doing set format", this);
spa_debug_format (format);
if (out_state == SPA_NODE_STATE_CONFIGURE) {
g_debug ("link %p: doing set format on output", this);
if ((res = spa_node_port_set_format (this->output_node->node,
this->output_port,
SPA_PORT_FORMAT_FLAG_NEAREST,
format)) < 0) {
g_set_error (&error,
PINOS_ERROR,
PINOS_ERROR_FORMAT_NEGOTIATION,
"error set output format: %d", res);
goto error;
}
} else if (in_state == SPA_NODE_STATE_CONFIGURE) {
g_debug ("link %p: doing set format on input", this);
if ((res = spa_node_port_set_format (this->input_node->node,
this->input_port,
SPA_PORT_FORMAT_FLAG_NEAREST,
format)) < 0) {
g_set_error (&error,
PINOS_ERROR,
PINOS_ERROR_FORMAT_NEGOTIATION,
"error set input format: %d", res);
goto error;
}
}
return res;
error:
{
pinos_link_report_error (this, error);
return res;
}
}
static void *
find_param (const SpaPortInfo *info, SpaAllocParamType type)
{
unsigned int i;
for (i = 0; i < info->n_params; i++) {
if (info->params[i]->type == type)
return info->params[i];
}
return NULL;
}
static SpaResult
do_allocation (PinosLink *this, SpaNodeState in_state, SpaNodeState out_state)
{
PinosLinkPrivate *priv = this->priv;
SpaResult res;
const SpaPortInfo *iinfo, *oinfo;
SpaPortInfoFlags in_flags, out_flags;
GError *error = NULL;
unsigned int max_buffers = MAX_BUFFERS;
SpaAllocParamBuffers *in_alloc, *out_alloc;
if (in_state != SPA_NODE_STATE_READY && out_state != SPA_NODE_STATE_READY)
return SPA_RESULT_OK;
pinos_link_update_state (this, PINOS_LINK_STATE_ALLOCATING);
g_debug ("link %p: doing alloc buffers %p %p", this, this->output_node, this->input_node);
/* find out what's possible */
if ((res = spa_node_port_get_info (this->output_node->node, this->output_port, &oinfo)) < 0) {
g_set_error (&error,
PINOS_ERROR,
PINOS_ERROR_BUFFER_ALLOCATION,
"error get output port info: %d", res);
goto error;
}
if ((res = spa_node_port_get_info (this->input_node->node, this->input_port, &iinfo)) < 0) {
g_set_error (&error,
PINOS_ERROR,
PINOS_ERROR_BUFFER_ALLOCATION,
"error get input port info: %d", res);
goto error;
}
in_flags = iinfo->flags;
out_flags = oinfo->flags;
max_buffers = MAX_BUFFERS;
in_alloc = find_param (iinfo, SPA_ALLOC_PARAM_TYPE_BUFFERS);
if (in_alloc)
max_buffers = in_alloc->max_buffers == 0 ? max_buffers : SPA_MIN (in_alloc->max_buffers, max_buffers);
out_alloc = find_param (oinfo, SPA_ALLOC_PARAM_TYPE_BUFFERS);
if (out_alloc)
max_buffers = out_alloc->max_buffers == 0 ? max_buffers : SPA_MIN (out_alloc->max_buffers, max_buffers);
if (out_flags & SPA_PORT_INFO_FLAG_LIVE) {
this->output_node->live = true;
this->input_node->live = true;
}
if (in_state == SPA_NODE_STATE_READY && out_state == SPA_NODE_STATE_READY) {
if ((out_flags & SPA_PORT_INFO_FLAG_CAN_ALLOC_BUFFERS) &&
(in_flags & SPA_PORT_INFO_FLAG_CAN_USE_BUFFERS)) {
out_flags = SPA_PORT_INFO_FLAG_CAN_ALLOC_BUFFERS;
in_flags = SPA_PORT_INFO_FLAG_CAN_USE_BUFFERS;
} else if ((out_flags & SPA_PORT_INFO_FLAG_CAN_USE_BUFFERS) &&
(in_flags & SPA_PORT_INFO_FLAG_CAN_ALLOC_BUFFERS)) {
out_flags = SPA_PORT_INFO_FLAG_CAN_USE_BUFFERS;
in_flags = SPA_PORT_INFO_FLAG_CAN_ALLOC_BUFFERS;
} else if ((out_flags & SPA_PORT_INFO_FLAG_CAN_USE_BUFFERS) &&
(in_flags & SPA_PORT_INFO_FLAG_CAN_USE_BUFFERS)) {
priv->n_in_buffers = max_buffers;
out_flags = SPA_PORT_INFO_FLAG_CAN_USE_BUFFERS;
in_flags = SPA_PORT_INFO_FLAG_CAN_USE_BUFFERS;
if ((res = spa_buffer_alloc (oinfo->params, oinfo->n_params,
priv->in_buffers,
&priv->n_in_buffers)) < 0) {
g_set_error (&error,
PINOS_ERROR,
PINOS_ERROR_BUFFER_ALLOCATION,
"error buffer alloc: %d", res);
goto error;
}
memcpy (priv->out_buffers, priv->in_buffers, priv->n_in_buffers * sizeof (SpaBuffer*));
priv->n_out_buffers = priv->n_in_buffers;
g_debug ("allocated out_buffers %p, in_buffers %p", priv->out_buffers, priv->in_buffers);
} else if ((out_flags & SPA_PORT_INFO_FLAG_CAN_ALLOC_BUFFERS) &&
(in_flags & SPA_PORT_INFO_FLAG_CAN_ALLOC_BUFFERS)) {
out_flags = SPA_PORT_INFO_FLAG_CAN_ALLOC_BUFFERS;
in_flags = SPA_PORT_INFO_FLAG_CAN_ALLOC_BUFFERS;
} else {
g_set_error (&error,
PINOS_ERROR,
PINOS_ERROR_BUFFER_ALLOCATION,
"no common buffer alloc found");
res = SPA_RESULT_ERROR;
goto error;
}
} else if (in_state == SPA_NODE_STATE_READY && out_state > SPA_NODE_STATE_READY) {
out_flags &= ~SPA_PORT_INFO_FLAG_CAN_USE_BUFFERS;
in_flags &= ~SPA_PORT_INFO_FLAG_CAN_ALLOC_BUFFERS;
} else if (out_state == SPA_NODE_STATE_READY && in_state > SPA_NODE_STATE_READY) {
in_flags &= ~SPA_PORT_INFO_FLAG_CAN_USE_BUFFERS;
out_flags &= ~SPA_PORT_INFO_FLAG_CAN_ALLOC_BUFFERS;
} else
return SPA_RESULT_OK;
spa_debug_port_info (oinfo);
spa_debug_port_info (iinfo);
if (in_flags & SPA_PORT_INFO_FLAG_CAN_ALLOC_BUFFERS && priv->n_in_buffers == 0) {
priv->n_in_buffers = max_buffers;
if ((res = spa_node_port_alloc_buffers (this->input_node->node, this->input_port,
oinfo->params, oinfo->n_params,
priv->in_buffers, &priv->n_in_buffers)) < 0) {
g_set_error (&error,
PINOS_ERROR,
PINOS_ERROR_BUFFER_ALLOCATION,
"error alloc input buffers: %d", res);
goto error;
}
g_debug ("allocated in_buffers %p from input port", priv->in_buffers);
}
else if (out_flags & SPA_PORT_INFO_FLAG_CAN_ALLOC_BUFFERS && priv->n_out_buffers == 0) {
priv->n_out_buffers = max_buffers;
if ((res = spa_node_port_alloc_buffers (this->output_node->node, this->output_port,
iinfo->params, iinfo->n_params,
priv->out_buffers, &priv->n_out_buffers)) < 0) {
g_set_error (&error,
PINOS_ERROR,
PINOS_ERROR_BUFFER_ALLOCATION,
"error alloc output buffers: %d", res);
goto error;
}
g_debug ("allocated out_buffers %p from output port", priv->out_buffers);
}
if (in_flags & SPA_PORT_INFO_FLAG_CAN_USE_BUFFERS) {
g_debug ("using out_buffers %p on input port", priv->out_buffers);
if ((res = spa_node_port_use_buffers (this->input_node->node, this->input_port,
priv->out_buffers, priv->n_out_buffers)) < 0) {
g_set_error (&error,
PINOS_ERROR,
PINOS_ERROR_BUFFER_ALLOCATION,
"error use input buffers: %d", res);
goto error;
}
}
else if (out_flags & SPA_PORT_INFO_FLAG_CAN_USE_BUFFERS) {
g_debug ("using in_buffers %p on output port", priv->in_buffers);
if ((res = spa_node_port_use_buffers (this->output_node->node, this->output_port,
priv->in_buffers, priv->n_in_buffers)) < 0) {
g_set_error (&error,
PINOS_ERROR,
PINOS_ERROR_BUFFER_ALLOCATION,
"error use output buffers: %d", res);
goto error;
}
} else {
g_set_error (&error,
PINOS_ERROR,
PINOS_ERROR_BUFFER_ALLOCATION,
"no common buffer alloc found");
goto error;
}
return res;
error:
{
pinos_link_report_error (this, error);
return res;
}
}
static SpaResult
do_start (PinosLink *this, SpaNodeState in_state, SpaNodeState out_state)
{
SpaResult res = SPA_RESULT_OK;
if (in_state < SPA_NODE_STATE_PAUSED || out_state < SPA_NODE_STATE_PAUSED)
return SPA_RESULT_OK;
else if (in_state == SPA_NODE_STATE_STREAMING && out_state == SPA_NODE_STATE_STREAMING) {
pinos_link_update_state (this, PINOS_LINK_STATE_RUNNING);
} else {
pinos_link_update_state (this, PINOS_LINK_STATE_PAUSED);
if (in_state == SPA_NODE_STATE_PAUSED) {
pinos_node_set_state (this->input_node, PINOS_NODE_STATE_RUNNING);
if (pinos_node_get_state (this->input_node) != PINOS_NODE_STATE_RUNNING)
res = SPA_RESULT_RETURN_ASYNC (0);
}
if (out_state == SPA_NODE_STATE_PAUSED) {
pinos_node_set_state (this->output_node, PINOS_NODE_STATE_RUNNING);
if (pinos_node_get_state (this->output_node) != PINOS_NODE_STATE_RUNNING)
res = SPA_RESULT_RETURN_ASYNC (0);
}
}
return res;
}
static SpaResult
check_states (PinosLink *this)
{
PinosLinkPrivate *priv = this->priv;
SpaResult res;
SpaNodeState in_state, out_state;
again:
if (priv->async_busy != SPA_ID_INVALID)
return SPA_RESULT_OK;
in_state = this->input_node->node->state;
out_state = this->output_node->node->state;
g_debug ("link %p: input state %d, output state %d", this, in_state, out_state);
if ((res = do_negotiate (this, in_state, out_state)) != SPA_RESULT_OK)
goto exit;
if ((res = do_allocation (this, in_state, out_state)) != SPA_RESULT_OK)
goto exit;
if ((res = do_start (this, in_state, out_state)) != SPA_RESULT_OK)
goto exit;
if (this->input_node->node->state != in_state)
goto again;
if (this->output_node->node->state != out_state)
goto again;
return SPA_RESULT_OK;
exit:
if (SPA_RESULT_IS_ASYNC (res)) {
priv->async_busy = SPA_RESULT_ASYNC_SEQ (res);
g_debug ("link %p: waiting for async complete %d", this, priv->async_busy);
}
return res;
}
static gboolean
do_check_states (PinosLink *this)
{
PinosLinkPrivate *priv = this->priv;
priv->async_busy = SPA_ID_INVALID;
check_states (this);
return G_SOURCE_REMOVE;
}
static void
on_async_complete_notify (PinosNode *node,
guint seq,
guint res,
PinosLink *this)
{
g_debug ("link %p: node %p async complete %d %d", this, node, seq, res);
g_idle_add ((GSourceFunc) do_check_states, this);
}
static void
on_property_notify (GObject *obj,
GParamSpec *pspec,
gpointer user_data)
{
PinosLink *this = user_data;
PinosLinkPrivate *priv = this->priv;
if (pspec == NULL || strcmp (g_param_spec_get_name (pspec), "output-node") == 0) {
pinos_link1_set_output_node (priv->iface, pinos_node_get_object_path (this->output_node));
}
if (pspec == NULL || strcmp (g_param_spec_get_name (pspec), "output-port") == 0) {
pinos_link1_set_output_port (priv->iface, this->output_port);
}
if (pspec == NULL || strcmp (g_param_spec_get_name (pspec), "input-node") == 0) {
pinos_link1_set_input_node (priv->iface, pinos_node_get_object_path (this->input_node));
}
if (pspec == NULL || strcmp (g_param_spec_get_name (pspec), "input-port") == 0) {
pinos_link1_set_input_port (priv->iface, this->input_port);
}
}
static void
on_node_remove (PinosNode *node, PinosLink *this)
{
g_signal_handlers_disconnect_by_data (node, this);
if (node == this->input_node)
g_clear_object (&this->input_node);
else
g_clear_object (&this->output_node);
pinos_link_update_state (this, PINOS_LINK_STATE_UNLINKED);
}
static void
pinos_link_constructed (GObject * object)
{
PinosLink *this = PINOS_LINK (object);
g_signal_connect (this->input_node, "remove", (GCallback) on_node_remove, this);
g_signal_connect (this->output_node, "remove", (GCallback) on_node_remove, this);
g_signal_connect (this->input_node, "async-complete", (GCallback) on_async_complete_notify, this);
g_signal_connect (this->output_node, "async-complete", (GCallback) on_async_complete_notify, this);
g_signal_connect (this, "notify", (GCallback) on_property_notify, this);
G_OBJECT_CLASS (pinos_link_parent_class)->constructed (object);
on_property_notify (G_OBJECT (this), NULL, this);
g_debug ("link %p: constructed %p:%d:%d -> %p:%d:%d", this,
this->output_node, this->output_id, this->output_port,
this->input_node, this->input_id, this->input_port);
link_register_object (this);
}
static void
pinos_link_dispose (GObject * object)
{
PinosLink *this = PINOS_LINK (object);
g_debug ("link %p: dispose", this);
if (this->input_node)
g_signal_handlers_disconnect_by_data (this->input_node, this);
if (this->output_node)
g_signal_handlers_disconnect_by_data (this->output_node, this);
g_signal_emit (this, signals[SIGNAL_REMOVE], 0, NULL);
g_clear_object (&this->input_node);
g_clear_object (&this->output_node);
link_unregister_object (this);
G_OBJECT_CLASS (pinos_link_parent_class)->dispose (object);
}
static void
pinos_link_finalize (GObject * object)
{
PinosLink *this = PINOS_LINK (object);
PinosLinkPrivate *priv = this->priv;
g_debug ("link %p: finalize", this);
g_clear_object (&priv->daemon);
g_clear_object (&priv->iface);
g_free (priv->object_path);
G_OBJECT_CLASS (pinos_link_parent_class)->finalize (object);
}
static void
pinos_link_class_init (PinosLinkClass * klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
//PinosLinkClass *link_class = PINOS_LINK_CLASS (klass);
g_type_class_add_private (klass, sizeof (PinosLinkPrivate));
gobject_class->constructed = pinos_link_constructed;
gobject_class->dispose = pinos_link_dispose;
gobject_class->finalize = pinos_link_finalize;
gobject_class->set_property = pinos_link_set_property;
gobject_class->get_property = pinos_link_get_property;
g_object_class_install_property (gobject_class,
PROP_DAEMON,
g_param_spec_object ("daemon",
"Daemon",
"The Daemon",
PINOS_TYPE_DAEMON,
G_PARAM_READWRITE |
G_PARAM_CONSTRUCT_ONLY |
G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class,
PROP_OUTPUT_NODE,
g_param_spec_object ("output-node",
"Output Node",
"The output node",
PINOS_TYPE_NODE,
G_PARAM_READWRITE |
G_PARAM_CONSTRUCT |
G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class,
PROP_OUTPUT_ID,
g_param_spec_uint ("output-id",
"Output Id",
"The output id",
0,
G_MAXUINT,
-1,
G_PARAM_READWRITE |
G_PARAM_CONSTRUCT |
G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class,
PROP_OUTPUT_PORT,
g_param_spec_uint ("output-port",
"Output Port",
"The output port",
0,
G_MAXUINT,
-1,
G_PARAM_READWRITE |
G_PARAM_CONSTRUCT |
G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class,
PROP_INPUT_NODE,
g_param_spec_object ("input-node",
"Input Node",
"The input node",
PINOS_TYPE_NODE,
G_PARAM_READWRITE |
G_PARAM_CONSTRUCT |
G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class,
PROP_INPUT_ID,
g_param_spec_uint ("input-id",
"Input Id",
"The input id",
0,
G_MAXUINT,
-1,
G_PARAM_READWRITE |
G_PARAM_CONSTRUCT |
G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class,
PROP_INPUT_PORT,
g_param_spec_uint ("input-port",
"Input Port",
"The input port",
0,
G_MAXUINT,
-1,
G_PARAM_READWRITE |
G_PARAM_CONSTRUCT |
G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class,
PROP_FORMAT_FILTER,
g_param_spec_boxed ("format-filter",
"format Filter",
"The format filter",
G_TYPE_PTR_ARRAY,
G_PARAM_READWRITE |
G_PARAM_CONSTRUCT |
G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class,
PROP_PROPERTIES,
g_param_spec_boxed ("properties",
"Properties",
"The properties of the link",
PINOS_TYPE_PROPERTIES,
G_PARAM_READWRITE |
G_PARAM_CONSTRUCT |
G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class,
PROP_STATE,
g_param_spec_enum ("state",
"State",
"The state of the link",
PINOS_TYPE_LINK_STATE,
PINOS_LINK_STATE_INIT,
G_PARAM_READABLE |
G_PARAM_STATIC_STRINGS));
signals[SIGNAL_REMOVE] = g_signal_new ("remove",
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST,
0,
NULL,
NULL,
g_cclosure_marshal_generic,
G_TYPE_NONE,
0,
G_TYPE_NONE);
}
static void
pinos_link_init (PinosLink * this)
{
PinosLinkPrivate *priv = this->priv = PINOS_LINK_GET_PRIVATE (this);
priv->iface = pinos_link1_skeleton_new ();
g_debug ("link %p: new", this);
priv->state = PINOS_LINK_STATE_INIT;
}
/**
* pinos_link_remove:
* @link: a #PinosLink
*
* Trigger removal of @link
*/
void
pinos_link_remove (PinosLink *this)
{
g_debug ("link %p: remove", this);
g_signal_emit (this, signals[SIGNAL_REMOVE], 0, NULL);
}
/**
* pinos_link_get_object_path:
* @link: a #PinosLink
*
* Get the object patch of @link
*
* Returns: the object path of @source.
*/
const gchar *
pinos_link_get_object_path (PinosLink *this)
{
PinosLinkPrivate *priv;
g_return_val_if_fail (PINOS_IS_LINK (this), NULL);
priv = this->priv;
return priv->object_path;
}
PinosLinkState
pinos_link_get_state (PinosLink *this,
GError **error)
{
PinosLinkPrivate *priv;
g_return_val_if_fail (PINOS_IS_LINK (this), PINOS_LINK_STATE_ERROR);
priv = this->priv;
if (error)
*error = priv->error;
return priv->state;
}
gboolean
pinos_link_activate (PinosLink *this)
{
g_return_val_if_fail (PINOS_IS_LINK (this), FALSE);
spa_ringbuffer_init (&this->ringbuffer, SPA_N_ELEMENTS (this->queue));
check_states (this);
return TRUE;
}
gboolean
pinos_link_deactivate (PinosLink *this)
{
spa_ringbuffer_clear (&this->ringbuffer);
return TRUE;
}
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