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pipewire/pinos/server/link.c
Wim Taymans ca7d08c406 Work on sink 
Remove _remove from properties, we can do the same with set of a NULL
value.
Add signals to the stream API to manage the buffers. Wrap those buffers
in a GstBuffer in the pinossrc and pinossink elements and pool them in a
bufferpool.
Remove SPA_EVENT_TYPE_PULL_INPUT, we can do the same with NEED_INPUT and
by using a ringbuffer.
Do more complete allocation of buffers in the link. Use the buffer
allocator if none of the nodes can allocate.
Follow the node state to trigger negotiation and allocation.
Remove offset and size when refering to buffers, we want to always deal
with the complete buffer and use a ringbuffer for ranges or change the
offset/size in the buffer data when needed.
Serialize port_info structures as part of the port_update
Print both the enum number and the name when debuging properties or
formats.
2016-08-24 16:38:51 +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/server/port.h"
#include "pinos/dbus/org-pinos.h"
#define PINOS_LINK_GET_PRIVATE(obj) \
(G_TYPE_INSTANCE_GET_PRIVATE ((obj), PINOS_TYPE_LINK, PinosLinkPrivate))
struct _PinosLinkPrivate
{
PinosDaemon *daemon;
PinosLink1 *iface;
gchar *object_path;
gulong input_id, output_id;
gboolean active;
gboolean negotiated;
gboolean allocated;
PinosPort *output;
PinosPort *input;
SpaNode *output_node;
uint32_t output_port;
SpaNode *input_node;
uint32_t input_port;
SpaNodeState input_state;
SpaNodeState output_state;
SpaBuffer *in_buffers[16];
unsigned int n_in_buffers;
SpaBuffer *out_buffers[16];
unsigned int n_out_buffers;
};
G_DEFINE_TYPE (PinosLink, pinos_link, G_TYPE_OBJECT);
enum
{
PROP_0,
PROP_DAEMON,
PROP_OUTPUT,
PROP_INPUT,
PROP_OBJECT_PATH,
};
enum
{
SIGNAL_REMOVE,
LAST_SIGNAL
};
static guint signals[LAST_SIGNAL] = { 0 };
static gboolean
on_output_buffer (PinosPort *port, uint32_t buffer_id, GError **error, gpointer user_data)
{
PinosLink *link = user_data;
PinosLinkPrivate *priv = link->priv;
return pinos_port_receive_buffer (priv->input, buffer_id, error);
}
static gboolean
on_output_event (PinosPort *port, SpaEvent *event, GError **error, gpointer user_data)
{
PinosLink *link = user_data;
PinosLinkPrivate *priv = link->priv;
return pinos_port_receive_event (priv->input, event, error);
}
static gboolean
on_input_buffer (PinosPort *port, uint32_t buffer_id, GError **error, gpointer user_data)
{
PinosLink *link = user_data;
PinosLinkPrivate *priv = link->priv;
return pinos_port_receive_buffer (priv->output, buffer_id, error);
}
static gboolean
on_input_event (PinosPort *port, SpaEvent *event, GError **error, gpointer user_data)
{
PinosLink *link = user_data;
PinosLinkPrivate *priv = link->priv;
return pinos_port_receive_event (priv->output, event, error);
}
static void
pinos_link_get_property (GObject *_object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
PinosLink *link = PINOS_LINK (_object);
PinosLinkPrivate *priv = link->priv;
switch (prop_id) {
case PROP_DAEMON:
g_value_set_object (value, priv->daemon);
break;
case PROP_OUTPUT:
g_value_set_object (value, priv->output);
break;
case PROP_INPUT:
g_value_set_object (value, priv->input);
break;
case PROP_OBJECT_PATH:
g_value_set_string (value, priv->object_path);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (link, prop_id, pspec);
break;
}
}
static void
pinos_link_set_property (GObject *_object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
PinosLink *link = PINOS_LINK (_object);
PinosLinkPrivate *priv = link->priv;
switch (prop_id) {
case PROP_DAEMON:
priv->daemon = g_value_dup_object (value);
break;
case PROP_OUTPUT:
priv->output = g_value_get_object (value);
priv->output_node = priv->output->node->node;
priv->output_port = priv->output->id;
break;
case PROP_INPUT:
priv->input = g_value_get_object (value);
priv->input_node = priv->input->node->node;
priv->input_port = priv->input->id;
break;
case PROP_OBJECT_PATH:
priv->object_path = g_value_dup_string (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (link, prop_id, pspec);
break;
}
}
static void
link_register_object (PinosLink *link)
{
PinosLinkPrivate *priv = link->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", link, priv->object_path);
}
static void
link_unregister_object (PinosLink *link)
{
PinosLinkPrivate *priv = link->priv;
g_debug ("link %p: unregister object", link);
pinos_daemon_unexport (priv->daemon, priv->object_path);
}
static SpaResult
do_negotiate (PinosLink *this)
{
PinosLinkPrivate *priv = this->priv;
SpaResult res;
SpaFormat *filter, *format;
void *istate = NULL, *ostate = NULL;
g_debug ("link %p: doing set format", this);
again:
if ((res = spa_node_port_enum_formats (priv->input_node,
priv->input_port,
&filter,
NULL,
&istate)) < 0) {
g_warning ("error enum formats: %d", res);
return res;
}
spa_debug_format (filter);
if ((res = spa_node_port_enum_formats (priv->output_node,
priv->output_port,
&format,
filter,
&ostate)) < 0) {
if (res == SPA_RESULT_ENUM_END) {
ostate = NULL;
goto again;
}
g_warning ("error enum formats: %d", res);
return res;
}
spa_debug_format (format);
if ((res = spa_node_port_set_format (priv->output_node, priv->output_port, 0, format)) < 0) {
g_warning ("error set format output: %d", res);
return res;
}
if ((res = spa_node_port_set_format (priv->input_node, priv->input_port, 0, format)) < 0) {
g_warning ("error set format input: %d", res);
return res;
}
priv->negotiated = TRUE;
return SPA_RESULT_OK;
}
static SpaResult
do_allocation (PinosLink *this)
{
PinosLinkPrivate *priv = this->priv;
SpaResult res;
const SpaPortInfo *iinfo, *oinfo;
SpaPortInfoFlags in_flags, out_flags;
g_debug ("link %p: doing alloc buffers %p %p", this, priv->output_node, priv->input_node);
/* find out what's possible */
if ((res = spa_node_port_get_info (priv->output_node, priv->output_port, &oinfo)) < 0) {
g_warning ("error get port info: %d", res);
return res;
}
if ((res = spa_node_port_get_info (priv->input_node, priv->input_port, &iinfo)) < 0) {
g_warning ("error get port info: %d", res);
return res;
}
spa_debug_port_info (oinfo);
spa_debug_port_info (iinfo);
priv->n_in_buffers = 16;
priv->n_out_buffers = 16;
if ((oinfo->flags & SPA_PORT_INFO_FLAG_CAN_ALLOC_BUFFERS) &&
(iinfo->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 ((oinfo->flags & SPA_PORT_INFO_FLAG_CAN_USE_BUFFERS) &&
(iinfo->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 ((oinfo->flags & SPA_PORT_INFO_FLAG_CAN_USE_BUFFERS) &&
(iinfo->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;
if ((res = spa_buffer_alloc (oinfo->params, oinfo->n_params,
priv->in_buffers,
&priv->n_in_buffers)) < 0) {
g_warning ("error alloc buffers: %d", res);
return res;
}
memcpy (priv->out_buffers, priv->in_buffers, priv->n_in_buffers * sizeof (SpaBuffer*));
priv->n_out_buffers = priv->n_in_buffers;
} else if ((oinfo->flags & SPA_PORT_INFO_FLAG_CAN_ALLOC_BUFFERS) &&
(iinfo->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_warning ("error no common allocation found");
return SPA_RESULT_ERROR;
}
if (in_flags & SPA_PORT_INFO_FLAG_CAN_ALLOC_BUFFERS) {
if ((res = spa_node_port_alloc_buffers (priv->input_node, priv->input_port,
oinfo->params, oinfo->n_params,
priv->in_buffers, &priv->n_in_buffers)) < 0) {
g_warning ("error alloc buffers: %d", res);
return res;
}
priv->input->n_buffers = priv->n_in_buffers;
priv->input->buffers = priv->in_buffers;
}
if (out_flags & SPA_PORT_INFO_FLAG_CAN_ALLOC_BUFFERS) {
if ((res = spa_node_port_alloc_buffers (priv->output_node, priv->output_port,
iinfo->params, iinfo->n_params,
priv->out_buffers, &priv->n_out_buffers)) < 0) {
g_warning ("error alloc buffers: %d", res);
return res;
}
priv->output->n_buffers = priv->n_out_buffers;
priv->output->buffers = priv->out_buffers;
}
if (in_flags & SPA_PORT_INFO_FLAG_CAN_USE_BUFFERS) {
if ((res = spa_node_port_use_buffers (priv->input_node, priv->input_port,
priv->out_buffers, priv->n_out_buffers)) < 0) {
g_warning ("error use buffers: %d", res);
return res;
}
priv->input->n_buffers = priv->n_out_buffers;
priv->input->buffers = priv->out_buffers;
}
if (out_flags & SPA_PORT_INFO_FLAG_CAN_USE_BUFFERS) {
if ((res = spa_node_port_use_buffers (priv->output_node, priv->output_port,
priv->in_buffers, priv->n_in_buffers)) < 0) {
g_warning ("error use buffers: %d", res);
return res;
}
priv->output->n_buffers = priv->n_in_buffers;
priv->output->buffers = priv->in_buffers;
}
priv->allocated = TRUE;
return SPA_RESULT_OK;
}
static SpaResult
do_start (PinosLink *this)
{
PinosLinkPrivate *priv = this->priv;
SpaCommand cmd;
SpaResult res;
cmd.type = SPA_COMMAND_START;
if ((res = spa_node_send_command (priv->input_node, &cmd)) < 0)
g_warning ("got error %d", res);
if ((res = spa_node_send_command (priv->output_node, &cmd)) < 0)
g_warning ("got error %d", res);
return res;
}
static SpaResult
do_stop (PinosLink *this)
{
PinosLinkPrivate *priv = this->priv;
SpaCommand cmd;
SpaResult res;
cmd.type = SPA_COMMAND_STOP;
if ((res = spa_node_send_command (priv->input_node, &cmd)) < 0)
g_warning ("got error %d", res);
if ((res = spa_node_send_command (priv->output_node, &cmd)) < 0)
g_warning ("got error %d", res);
return res;
}
static SpaResult
check_states (PinosLink *this)
{
PinosLinkPrivate *priv = this->priv;
SpaResult res;
g_debug ("link %p: input %d, output %d", this, priv->input_state, priv->output_state);
if (priv->input_state == SPA_NODE_STATE_CONFIGURE &&
priv->output_state == SPA_NODE_STATE_CONFIGURE &&
!priv->negotiated) {
if ((res = do_negotiate (this)) < 0)
return res;
}
if (priv->input_state == SPA_NODE_STATE_READY &&
priv->output_state == SPA_NODE_STATE_READY &&
!priv->allocated) {
if ((res = do_allocation (this)) < 0)
return res;
if ((res = do_start (this)) < 0)
return res;
}
return SPA_RESULT_OK;
}
static void
on_node_state_notify (GObject *obj,
GParamSpec *pspec,
gpointer user_data)
{
PinosLink *this = user_data;
PinosLinkPrivate *priv = this->priv;
g_debug ("link %p: node %p state change", this, obj);
if (obj == G_OBJECT (priv->input->node))
priv->input_state = priv->input->node->node_state;
else
priv->output_state = priv->output->node->node_state;
check_states (this);
}
static gboolean
on_activate (PinosPort *port, gpointer user_data)
{
PinosLink *this = user_data;
PinosLinkPrivate *priv = this->priv;
if (priv->active)
return TRUE;
priv->active = TRUE;
if (priv->input == port)
pinos_port_activate (priv->output);
else
pinos_port_activate (priv->input);
check_states (this);
return TRUE;
}
static gboolean
on_deactivate (PinosPort *port, gpointer user_data)
{
PinosLink *this = user_data;
PinosLinkPrivate *priv = this->priv;
if (!priv->active)
return TRUE;
priv->active = FALSE;
if (priv->input == port)
pinos_port_deactivate (priv->output);
else
pinos_port_deactivate (priv->input);
do_stop (this);
return TRUE;
}
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") == 0) {
gchar *port = g_strdup_printf ("%s:%d", pinos_node_get_object_path (priv->output->node),
priv->output->id);
pinos_link1_set_src_port (priv->iface, port);
g_free (port);
}
if (pspec == NULL || strcmp (g_param_spec_get_name (pspec), "input") == 0) {
gchar *port = g_strdup_printf ("%s:%d", pinos_node_get_object_path (priv->input->node),
priv->input->id);
pinos_link1_set_dest_port (priv->iface, port);
g_free (port);
}
}
static void
pinos_link_constructed (GObject * object)
{
PinosLink *this = PINOS_LINK (object);
PinosLinkPrivate *priv = this->priv;
priv->output_id = pinos_port_add_send_cb (priv->output,
on_output_buffer,
on_output_event,
this,
NULL);
priv->input_id = pinos_port_add_send_cb (priv->input,
on_input_buffer,
on_input_event,
this,
NULL);
priv->input_state = priv->input->node->node_state;
priv->output_state = priv->output->node->node_state;
g_signal_connect (priv->input->node, "notify::node-state", (GCallback) on_node_state_notify, this);
g_signal_connect (priv->output->node, "notify::node-state", (GCallback) on_node_state_notify, this);
g_signal_connect (priv->input, "activate", (GCallback) on_activate, this);
g_signal_connect (priv->input, "deactivate", (GCallback) on_deactivate, this);
g_signal_connect (priv->output, "activate", (GCallback) on_activate, this);
g_signal_connect (priv->output, "deactivate", (GCallback) on_deactivate, 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", this);
link_register_object (this);
}
static void
pinos_link_dispose (GObject * object)
{
PinosLink *link = PINOS_LINK (object);
PinosLinkPrivate *priv = link->priv;
g_debug ("link %p: dispose", link);
pinos_port_remove_send_cb (priv->input, priv->input_id);
pinos_port_remove_send_cb (priv->output, priv->output_id);
if (priv->active) {
priv->active = FALSE;
pinos_port_deactivate (priv->input);
pinos_port_deactivate (priv->output);
}
priv->input = NULL;
priv->output = NULL;
link_unregister_object (link);
G_OBJECT_CLASS (pinos_link_parent_class)->dispose (object);
}
static void
pinos_link_finalize (GObject * object)
{
PinosLink *link = PINOS_LINK (object);
PinosLinkPrivate *priv = link->priv;
g_debug ("link %p: finalize", link);
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,
g_param_spec_object ("output",
"Output",
"The output port",
PINOS_TYPE_PORT,
G_PARAM_READWRITE |
G_PARAM_CONSTRUCT |
G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class,
PROP_INPUT,
g_param_spec_object ("input",
"Input",
"The input port",
PINOS_TYPE_PORT,
G_PARAM_READWRITE |
G_PARAM_CONSTRUCT |
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 * link)
{
PinosLinkPrivate *priv = link->priv = PINOS_LINK_GET_PRIVATE (link);
priv->iface = pinos_link1_skeleton_new ();
g_debug ("link %p: new", link);
}
PinosLink *
pinos_link_new (PinosDaemon *daemon,
PinosPort *output,
PinosPort *input)
{
PinosLink *link;
PinosPort *tmp;
if (output->direction != PINOS_DIRECTION_OUTPUT) {
tmp = output;
output = input;
input = tmp;
}
link = g_object_new (PINOS_TYPE_LINK,
"daemon", daemon,
"output", output,
"input", input,
NULL);
return link;
}
/**
* pinos_link_remove:
* @link: a #PinosLink
*
* Trigger removal of @link
*/
void
pinos_link_remove (PinosLink *link)
{
g_return_if_fail (PINOS_IS_LINK (link));
g_debug ("link %p: remove", link);
g_signal_emit (link, 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 *link)
{
PinosLinkPrivate *priv;
g_return_val_if_fail (PINOS_IS_LINK (link), NULL);
priv = link->priv;
return priv->object_path;
}
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