mirrors/pipewire
1
0
Fork 0
mirror of https://gitlab.freedesktop.org/pipewire/pipewire.git synced 2025-10-31 22:25:38 -04:00
Code Issues Projects Releases Packages Wiki Activity Actions
pipewire/pinos/server/link.c
Wim Taymans 24108e01c1 mem: remove memory stuff 
Remove the memory stuff from the spa API, we can do thing more simple
and efficiently if we always allocate buffers outside of the plugins and
only implement an alloc function on the node when it can do something
clever.
Move serialize code to the props/format/buffer code
Make it possible to copy a format and properties.
2016-09-29 18:18:59 +02:00

850 lines
27 KiB
C
Raw Blame History

/* 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;
gboolean allocated;
SpaBuffer *buffers[MAX_BUFFERS];
unsigned int n_buffers;
};
G_DEFINE_TYPE (PinosLink, pinos_link, G_TYPE_OBJECT);
enum
{
PROP_0,
PROP_DAEMON,
PROP_OBJECT_PATH,
PROP_OUTPUT_PORT,
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_PORT:
g_value_set_pointer (value, this->output);
break;
case PROP_INPUT_PORT:
g_value_set_pointer (value, this->input);
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_PORT:
this->output = g_value_get_pointer (value);
break;
case PROP_INPUT_PORT:
this->input = g_value_get_pointer (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;
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;
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)) {
out_flags = SPA_PORT_INFO_FLAG_CAN_USE_BUFFERS;
in_flags = SPA_PORT_INFO_FLAG_CAN_USE_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 (!priv->allocated) {
SpaAllocParamBuffers *in_alloc, *out_alloc;
guint max_buffers = MAX_BUFFERS;
SpaBufferAllocFlags flags = 0;
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 ((in_flags & SPA_PORT_INFO_FLAG_CAN_ALLOC_BUFFERS) ||
(out_flags & SPA_PORT_INFO_FLAG_CAN_ALLOC_BUFFERS))
flags |= SPA_BUFFER_ALLOC_FLAG_NO_MEM;
priv->n_buffers = max_buffers;
if ((res = spa_buffer_alloc (flags,
oinfo->params, oinfo->n_params,
priv->buffers,
&priv->n_buffers)) < 0) {
g_set_error (&error,
PINOS_ERROR,
PINOS_ERROR_BUFFER_ALLOCATION,
"error buffer alloc: %d", res);
goto error;
}
g_debug ("allocated %d buffers %p", priv->n_buffers, priv->buffers);
priv->allocated = TRUE;
if (in_flags & SPA_PORT_INFO_FLAG_CAN_ALLOC_BUFFERS) {
if ((res = spa_node_port_alloc_buffers (this->input->node->node, this->input->port,
oinfo->params, oinfo->n_params,
priv->buffers, &priv->n_buffers)) < 0) {
g_set_error (&error,
PINOS_ERROR,
PINOS_ERROR_BUFFER_ALLOCATION,
"error alloc input buffers: %d", res);
goto error;
}
this->input->allocated = TRUE;
g_debug ("allocated %d buffers %p from input port", priv->n_buffers, priv->buffers);
}
else if (out_flags & SPA_PORT_INFO_FLAG_CAN_ALLOC_BUFFERS) {
if ((res = spa_node_port_alloc_buffers (this->output->node->node, this->output->port,
iinfo->params, iinfo->n_params,
priv->buffers, &priv->n_buffers)) < 0) {
g_set_error (&error,
PINOS_ERROR,
PINOS_ERROR_BUFFER_ALLOCATION,
"error alloc output buffers: %d", res);
goto error;
}
this->output->allocated = TRUE;
g_debug ("allocated %d buffers %p from output port", priv->n_buffers, priv->buffers);
}
}
if (in_flags & SPA_PORT_INFO_FLAG_CAN_USE_BUFFERS) {
g_debug ("using %d buffers %p on input port", priv->n_buffers, priv->buffers);
if ((res = spa_node_port_use_buffers (this->input->node->node, this->input->port,
priv->buffers, priv->n_buffers)) < 0) {
g_set_error (&error,
PINOS_ERROR,
PINOS_ERROR_BUFFER_ALLOCATION,
"error use input buffers: %d", res);
goto error;
}
this->input->allocated = FALSE;
}
else if (out_flags & SPA_PORT_INFO_FLAG_CAN_USE_BUFFERS) {
g_debug ("using %d buffers %p on output port", priv->n_buffers, priv->buffers);
if ((res = spa_node_port_use_buffers (this->output->node->node, this->output->port,
priv->buffers, priv->n_buffers)) < 0) {
g_set_error (&error,
PINOS_ERROR,
PINOS_ERROR_BUFFER_ALLOCATION,
"error use output buffers: %d", res);
goto error;
}
this->output->allocated = FALSE;
} else {
g_set_error (&error,
PINOS_ERROR,
PINOS_ERROR_BUFFER_ALLOCATION,
"no common buffer alloc found");
goto error;
this->input->allocated = FALSE;
this->output->allocated = FALSE;
}
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-port") == 0) {
pinos_link1_set_output_node (priv->iface, pinos_node_get_object_path (this->output->node));
pinos_link1_set_output_port (priv->iface, this->output->port);
}
if (pspec == NULL || strcmp (g_param_spec_get_name (pspec), "input-port") == 0) {
pinos_link1_set_input_node (priv->iface, pinos_node_get_object_path (this->input->node));
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)
this->input = NULL;
else
this->output = NULL;
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 -> %p:%d", this,
this->output->node, this->output->port,
this->input->node, 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);
this->input = NULL;
this->output = NULL;
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_PORT,
g_param_spec_pointer ("output-port",
"Output Port",
"The output port",
G_PARAM_READWRITE |
G_PARAM_CONSTRUCT |
G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class,
PROP_INPUT_PORT,
g_param_spec_pointer ("input-port",
"Input Port",
"The input port",
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;
}
Reference in a new issue View git blame Copy permalink