mirrors/pipewire
1
0
Fork 0
mirror of https://gitlab.freedesktop.org/pipewire/pipewire.git synced 2025-11-02 09:01:50 -05:00
Code Issues Projects Releases Packages Wiki Activity Actions
pipewire/pinos/client/stream.c
Wim Taymans dfbfb4c9ee Rework dbus handling 
Remove the Daemon object and remove all dbus code from the main
objects. We can use the signals in a separate module to create and
destroy the DBus interfaces.
Move the dbus protocol in a module
Move the autolink policy to a module
2016-11-16 16:57:47 +01:00

1813 lines
51 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 <sys/socket.h>
#include <string.h>
#include <sys/mman.h>
#include <errno.h>
#include "spa/lib/debug.h"
#include <gio/gio.h>
#include <gio/gunixfdlist.h>
#include <gio/gunixfdmessage.h>
#include "pinos/dbus/org-pinos.h"
#include "pinos/client/pinos.h"
#include "pinos/client/array.h"
#include "pinos/client/connection.h"
#include "pinos/client/context.h"
#include "pinos/client/stream.h"
#include "pinos/client/enumtypes.h"
#include "pinos/client/format.h"
#include "pinos/client/private.h"
#include "pinos/client/serialize.h"
#include "pinos/client/transport.h"
#define MAX_BUFFER_SIZE 4096
#define MAX_FDS 32
#define MAX_INPUTS 64
#define MAX_OUTPUTS 64
typedef struct {
uint32_t id;
int fd;
uint32_t flags;
void *ptr;
size_t size;
} MemId;
typedef struct {
uint32_t id;
bool used;
void *buf_ptr;
SpaBuffer *buf;
SpaData *datas;
} BufferId;
struct _PinosStreamPrivate
{
PinosContext *context;
gchar *name;
PinosProperties *properties;
guint id;
PinosStreamState state;
GError *error;
gchar *path;
SpaNodeState node_state;
GPtrArray *possible_formats;
SpaFormat *format;
SpaPortInfo port_info;
SpaDirection direction;
uint32_t port_id;
uint32_t pending_seq;
PinosStreamFlags flags;
GDBusProxy *node;
gboolean disconnecting;
PinosStreamMode mode;
GSocket *socket;
GSource *socket_source;
int fd;
GSocket *rtsocket;
GSource *rtsocket_source;
int rtfd;
PinosConnection *conn;
PinosTransport *trans;
GSource *timeout_source;
PinosArray mem_ids;
PinosArray buffer_ids;
gboolean in_order;
gint64 last_ticks;
gint32 last_rate;
gint64 last_monotonic;
};
#define PINOS_STREAM_GET_PRIVATE(obj) \
(G_TYPE_INSTANCE_GET_PRIVATE ((obj), PINOS_TYPE_STREAM, PinosStreamPrivate))
G_DEFINE_TYPE (PinosStream, pinos_stream, G_TYPE_OBJECT);
enum
{
PROP_0,
PROP_CONTEXT,
PROP_NAME,
PROP_PROPERTIES,
PROP_STATE,
PROP_POSSIBLE_FORMATS,
PROP_FORMAT,
};
enum
{
SIGNAL_ADD_BUFFER,
SIGNAL_REMOVE_BUFFER,
SIGNAL_NEW_BUFFER,
LAST_SIGNAL
};
static guint signals[LAST_SIGNAL] = { 0 };
static void
clear_buffers (PinosStream *stream)
{
PinosStreamPrivate *priv = stream->priv;
BufferId *bid;
pinos_array_for_each (bid, &priv->buffer_ids) {
g_signal_emit (stream, signals[SIGNAL_REMOVE_BUFFER], 0, bid->id);
bid->buf = NULL;
}
priv->buffer_ids.size = 0;
priv->in_order = TRUE;
}
static void
pinos_stream_get_property (GObject *_object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
PinosStream *stream = PINOS_STREAM (_object);
PinosStreamPrivate *priv = stream->priv;
switch (prop_id) {
case PROP_CONTEXT:
g_value_set_object (value, priv->context);
break;
case PROP_NAME:
g_value_set_string (value, priv->name);
break;
case PROP_PROPERTIES:
g_value_set_boxed (value, priv->properties);
break;
case PROP_STATE:
g_value_set_enum (value, priv->state);
break;
case PROP_POSSIBLE_FORMATS:
g_value_set_boxed (value, priv->possible_formats);
break;
case PROP_FORMAT:
g_value_set_boxed (value, priv->format);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (stream, prop_id, pspec);
break;
}
}
static void
pinos_stream_set_property (GObject *_object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
PinosStream *stream = PINOS_STREAM (_object);
PinosStreamPrivate *priv = stream->priv;
switch (prop_id) {
case PROP_CONTEXT:
priv->context = g_value_dup_object (value);
break;
case PROP_NAME:
priv->name = g_value_dup_string (value);
break;
case PROP_PROPERTIES:
if (priv->properties)
pinos_properties_free (priv->properties);
priv->properties = g_value_dup_boxed (value);
break;
case PROP_FORMAT:
if (priv->format)
g_boxed_free (SPA_TYPE_FORMAT, priv->format);
priv->format = g_value_dup_boxed (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (stream, prop_id, pspec);
break;
}
}
static gboolean
do_notify_state (PinosStream *stream)
{
g_object_notify (G_OBJECT (stream), "state");
g_object_unref (stream);
return FALSE;
}
static void
stream_set_state (PinosStream *stream,
PinosStreamState state,
GError *error)
{
if (stream->priv->state != state) {
if (error) {
g_clear_error (&stream->priv->error);
stream->priv->error = error;
}
stream->priv->state = state;
g_main_context_invoke (stream->priv->context->priv->context,
(GSourceFunc) do_notify_state,
g_object_ref (stream));
} else {
if (error)
g_error_free (error);
}
}
static void
on_node_info (PinosContext *c,
const PinosNodeInfo *info,
gpointer user_data)
{
PinosStream *stream = PINOS_STREAM (user_data);
if (info->state == PINOS_NODE_STATE_ERROR) {
pinos_log_debug ("stream %p: node %s in error", stream, info->node_path);
stream_set_state (stream,
PINOS_STREAM_STATE_ERROR,
g_error_new (PINOS_ERROR,
PINOS_ERROR_NODE_STATE,
"node is in error"));
}
}
static void
info_ready (GObject *o, GAsyncResult *res, gpointer user_data)
{
GError *error = NULL;
if (!pinos_context_info_finish (o, res, &error)) {
pinos_log_error ("introspection failure: %s\n", error->message);
g_clear_error (&error);
}
}
static void
subscription_cb (PinosSubscribe *subscribe,
PinosSubscriptionEvent event,
PinosSubscriptionFlags flags,
GDBusProxy *object,
gpointer user_data)
{
PinosStream *stream = PINOS_STREAM (user_data);
PinosStreamPrivate *priv = stream->priv;
switch (flags) {
case PINOS_SUBSCRIPTION_FLAG_NODE:
if (event == PINOS_SUBSCRIPTION_EVENT_REMOVE) {
if (object == priv->node && !priv->disconnecting) {
stream_set_state (stream,
PINOS_STREAM_STATE_ERROR,
g_error_new_literal (G_IO_ERROR,
G_IO_ERROR_CLOSED,
"Node disappeared"));
}
} else if (event == PINOS_SUBSCRIPTION_EVENT_CHANGE) {
if (object == priv->node && !priv->disconnecting) {
pinos_context_get_node_info_by_id (priv->context,
object,
PINOS_NODE_INFO_FLAGS_NONE,
on_node_info,
NULL,
info_ready,
stream);
}
}
break;
default:
break;
}
}
static void
pinos_stream_constructed (GObject * object)
{
PinosStream *stream = PINOS_STREAM (object);
PinosStreamPrivate *priv = stream->priv;
priv->id = g_signal_connect (priv->context->priv->subscribe,
"subscription-event",
(GCallback) subscription_cb,
stream);
G_OBJECT_CLASS (pinos_stream_parent_class)->constructed (object);
}
static void
pinos_stream_finalize (GObject * object)
{
PinosStream *stream = PINOS_STREAM (object);
PinosStreamPrivate *priv = stream->priv;
pinos_log_debug ("free stream %p", stream);
g_clear_object (&priv->node);
if (priv->possible_formats)
g_ptr_array_unref (priv->possible_formats);
if (priv->format)
g_boxed_free (SPA_TYPE_FORMAT, priv->format);
g_free (priv->path);
g_clear_error (&priv->error);
pinos_array_clear (&priv->buffer_ids);
pinos_array_clear (&priv->mem_ids);
if (priv->properties)
pinos_properties_free (priv->properties);
g_signal_handler_disconnect (priv->context->priv->subscribe, priv->id);
g_clear_object (&priv->context);
g_free (priv->name);
G_OBJECT_CLASS (pinos_stream_parent_class)->finalize (object);
}
static void
pinos_stream_class_init (PinosStreamClass * klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
g_type_class_add_private (klass, sizeof (PinosStreamPrivate));
gobject_class->constructed = pinos_stream_constructed;
gobject_class->finalize = pinos_stream_finalize;
gobject_class->set_property = pinos_stream_set_property;
gobject_class->get_property = pinos_stream_get_property;
/**
* PinosStream:context
*
* The context of the stream.
*/
g_object_class_install_property (gobject_class,
PROP_CONTEXT,
g_param_spec_object ("context",
"Context",
"The context",
PINOS_TYPE_CONTEXT,
G_PARAM_READWRITE |
G_PARAM_CONSTRUCT_ONLY |
G_PARAM_STATIC_STRINGS));
/**
* PinosStream:name
*
* The name of the stream as specified at construction time.
*/
g_object_class_install_property (gobject_class,
PROP_NAME,
g_param_spec_string ("name",
"Name",
"The name of the stream",
NULL,
G_PARAM_READWRITE |
G_PARAM_CONSTRUCT_ONLY |
G_PARAM_STATIC_STRINGS));
/**
* PinosStream:properties
*
* The properties of the stream as specified at construction time.
*/
g_object_class_install_property (gobject_class,
PROP_PROPERTIES,
g_param_spec_boxed ("properties",
"Properties",
"The properties of the stream",
PINOS_TYPE_PROPERTIES,
G_PARAM_READWRITE |
G_PARAM_CONSTRUCT_ONLY |
G_PARAM_STATIC_STRINGS));
/**
* PinosStream:state
*
* The state of the stream. Use the notify::state signal to be notified
* of state changes.
*/
g_object_class_install_property (gobject_class,
PROP_STATE,
g_param_spec_enum ("state",
"State",
"The stream state",
PINOS_TYPE_STREAM_STATE,
PINOS_STREAM_STATE_UNCONNECTED,
G_PARAM_READABLE |
G_PARAM_STATIC_STRINGS));
/**
* PinosStream:possible-formats
*
* The possible formats for the stream. this can only be used after connecting
* the stream for capture or provide.
*/
g_object_class_install_property (gobject_class,
PROP_POSSIBLE_FORMATS,
g_param_spec_boxed ("possible-formats",
"Possible Formats",
"The possbile formats of the stream",
G_TYPE_PTR_ARRAY,
G_PARAM_READABLE |
G_PARAM_STATIC_STRINGS));
/**
* PinosStream:formats
*
* The format of the stream. This will be set after starting the stream.
*/
g_object_class_install_property (gobject_class,
PROP_FORMAT,
g_param_spec_boxed ("format",
"Format",
"The format of the stream",
SPA_TYPE_FORMAT,
G_PARAM_READWRITE |
G_PARAM_STATIC_STRINGS));
/**
* PinosStream:new-buffer
* @id: the buffer id
*
* this signal will be fired whenever a buffer is added to the pool of buffers.
*/
signals[SIGNAL_ADD_BUFFER] = g_signal_new ("add-buffer",
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST,
0,
NULL,
NULL,
g_cclosure_marshal_generic,
G_TYPE_NONE,
1,
G_TYPE_UINT);
/**
* PinosStream:remove-buffer
* @id: the buffer id
*
* this signal will be fired whenever a buffer is removed from the pool of buffers.
*/
signals[SIGNAL_REMOVE_BUFFER] = g_signal_new ("remove-buffer",
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST,
0,
NULL,
NULL,
g_cclosure_marshal_generic,
G_TYPE_NONE,
1,
G_TYPE_UINT);
/**
* PinosStream:new-buffer
* @id: the buffer id
*
* this signal will be fired whenever a buffer is ready to be processed.
*/
signals[SIGNAL_NEW_BUFFER] = g_signal_new ("new-buffer",
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST,
0,
NULL,
NULL,
g_cclosure_marshal_generic,
G_TYPE_NONE,
1,
G_TYPE_UINT);
}
static void
pinos_stream_init (PinosStream * stream)
{
PinosStreamPrivate *priv = stream->priv = PINOS_STREAM_GET_PRIVATE (stream);
pinos_log_debug ("new stream %p", stream);
priv->state = PINOS_STREAM_STATE_UNCONNECTED;
priv->node_state = SPA_NODE_STATE_INIT;
pinos_array_init (&priv->mem_ids);
pinos_array_ensure_size (&priv->mem_ids, sizeof (MemId) * 64);
pinos_array_init (&priv->buffer_ids);
pinos_array_ensure_size (&priv->buffer_ids, sizeof (BufferId) * 64);
priv->pending_seq = SPA_ID_INVALID;
}
/**
* pinos_stream_state_as_string:
* @state: a #PinosStreamState
*
* Return the string representation of @state.
*
* Returns: the string representation of @state.
*/
const gchar *
pinos_stream_state_as_string (PinosStreamState state)
{
GEnumValue *val;
val = g_enum_get_value (G_ENUM_CLASS (g_type_class_ref (PINOS_TYPE_STREAM_STATE)),
state);
return val == NULL ? "invalid-state" : val->value_nick;
}
/**
* pinos_stream_new:
* @context: a #PinosContext
* @name: a stream name
* @properties: (transfer full): stream properties
*
* Make a new unconnected #PinosStream
*
* Returns: a new unconnected #PinosStream
*/
PinosStream *
pinos_stream_new (PinosContext *context,
const gchar *name,
PinosProperties *props)
{
PinosStream *stream;
g_return_val_if_fail (PINOS_IS_CONTEXT (context), NULL);
g_return_val_if_fail (name != NULL, NULL);
if (props == NULL) {
props = pinos_properties_new ("media.name", name, NULL);
} else if (!pinos_properties_get (props, "media.name")) {
pinos_properties_set (props, "media.name", name);
}
stream = g_object_new (PINOS_TYPE_STREAM,
"context", context,
"name", name,
"properties", props,
NULL);
pinos_properties_free (props);
return stream;
}
/**
* pinos_stream_get_state:
* @stream: a #PinosStream
*
* Get the state of @stream.
*
* Returns: the state of @stream
*/
PinosStreamState
pinos_stream_get_state (PinosStream *stream)
{
g_return_val_if_fail (PINOS_IS_STREAM (stream), PINOS_STREAM_STATE_ERROR);
return stream->priv->state;
}
/**
* pinos_stream_get_error:
* @stream: a #PinosStream
*
* Get the error of @stream.
*
* Returns: the error of @stream or %NULL when there is no error
*/
const GError *
pinos_stream_get_error (PinosStream *stream)
{
g_return_val_if_fail (PINOS_IS_STREAM (stream), NULL);
return stream->priv->error;
}
static void
add_node_update (PinosStream *stream, uint32_t change_mask)
{
PinosStreamPrivate *priv = stream->priv;
PinosMessageNodeUpdate nu = { 0, };
nu.change_mask = change_mask;
if (change_mask & PINOS_MESSAGE_NODE_UPDATE_MAX_INPUTS)
nu.max_input_ports = priv->direction == SPA_DIRECTION_INPUT ? 1 : 0;
if (change_mask & PINOS_MESSAGE_NODE_UPDATE_MAX_OUTPUTS)
nu.max_output_ports = priv->direction == SPA_DIRECTION_OUTPUT ? 1 : 0;
nu.props = NULL;
pinos_connection_add_message (priv->conn, PINOS_MESSAGE_NODE_UPDATE, &nu);
}
static void
add_state_change (PinosStream *stream, SpaNodeState state)
{
PinosStreamPrivate *priv = stream->priv;
PinosMessageNodeStateChange sc;
if (priv->node_state != state) {
sc.state = priv->node_state = state;
pinos_connection_add_message (priv->conn, PINOS_MESSAGE_NODE_STATE_CHANGE, &sc);
}
}
static void
add_port_update (PinosStream *stream, uint32_t change_mask)
{
PinosStreamPrivate *priv = stream->priv;
PinosMessagePortUpdate pu = { 0, };;
pu.direction = priv->direction;
pu.port_id = priv->port_id;
pu.change_mask = change_mask;
if (change_mask & PINOS_MESSAGE_PORT_UPDATE_POSSIBLE_FORMATS) {
pu.n_possible_formats = priv->possible_formats->len;
pu.possible_formats = (SpaFormat **)priv->possible_formats->pdata;
}
if (change_mask & PINOS_MESSAGE_PORT_UPDATE_FORMAT) {
pu.format = priv->format;
}
pu.props = NULL;
if (change_mask & PINOS_MESSAGE_PORT_UPDATE_INFO) {
pu.info = &priv->port_info;
}
pinos_connection_add_message (priv->conn, PINOS_MESSAGE_PORT_UPDATE, &pu);
}
static inline void
send_need_input (PinosStream *stream)
{
PinosStreamPrivate *priv = stream->priv;
uint8_t cmd = PINOS_TRANSPORT_CMD_NEED_DATA;
write (priv->rtfd, &cmd, 1);
}
static void
add_request_clock_update (PinosStream *stream)
{
PinosStreamPrivate *priv = stream->priv;
PinosMessageNodeEvent cne;
SpaNodeEventRequestClockUpdate rcu;
cne.event = &rcu.event;
rcu.event.type = SPA_NODE_EVENT_TYPE_REQUEST_CLOCK_UPDATE;
rcu.event.size = sizeof (rcu);
rcu.update_mask = SPA_NODE_EVENT_REQUEST_CLOCK_UPDATE_TIME;
rcu.timestamp = 0;
rcu.offset = 0;
pinos_connection_add_message (priv->conn, PINOS_MESSAGE_NODE_EVENT, &cne);
}
static void
add_async_complete (PinosStream *stream,
uint32_t seq,
SpaResult res)
{
PinosStreamPrivate *priv = stream->priv;
PinosMessageNodeEvent cne;
SpaNodeEventAsyncComplete ac;
cne.event = &ac.event;
ac.event.type = SPA_NODE_EVENT_TYPE_ASYNC_COMPLETE;
ac.event.size = sizeof (ac);
ac.seq = seq;
ac.res = res;
pinos_connection_add_message (priv->conn, PINOS_MESSAGE_NODE_EVENT, &cne);
}
static void
do_node_init (PinosStream *stream)
{
PinosStreamPrivate *priv = stream->priv;
add_node_update (stream, PINOS_MESSAGE_NODE_UPDATE_MAX_INPUTS |
PINOS_MESSAGE_NODE_UPDATE_MAX_OUTPUTS);
priv->port_info.flags = SPA_PORT_INFO_FLAG_CAN_USE_BUFFERS;
add_port_update (stream, PINOS_MESSAGE_PORT_UPDATE_POSSIBLE_FORMATS |
PINOS_MESSAGE_PORT_UPDATE_INFO);
add_state_change (stream, SPA_NODE_STATE_CONFIGURE);
if (!pinos_connection_flush (priv->conn))
pinos_log_warn ("stream %p: error writing connection", stream);
}
static MemId *
find_mem (PinosStream *stream, uint32_t id)
{
PinosStreamPrivate *priv = stream->priv;
MemId *mid;
pinos_array_for_each (mid, &priv->mem_ids) {
if (mid->id == id)
return mid;
}
return NULL;
}
static BufferId *
find_buffer (PinosStream *stream, uint32_t id)
{
PinosStreamPrivate *priv = stream->priv;
if (priv->in_order && pinos_array_check_index (&priv->buffer_ids, id, BufferId)) {
return pinos_array_get_unchecked (&priv->buffer_ids, id, BufferId);
} else {
BufferId *bid;
pinos_array_for_each (bid, &priv->buffer_ids) {
if (bid->id == id)
return bid;
}
}
return NULL;
}
static gboolean
handle_node_event (PinosStream *stream,
SpaNodeEvent *event)
{
switch (event->type) {
case SPA_NODE_EVENT_TYPE_INVALID:
case SPA_NODE_EVENT_TYPE_HAVE_OUTPUT:
case SPA_NODE_EVENT_TYPE_NEED_INPUT:
case SPA_NODE_EVENT_TYPE_ASYNC_COMPLETE:
case SPA_NODE_EVENT_TYPE_REUSE_BUFFER:
case SPA_NODE_EVENT_TYPE_ERROR:
case SPA_NODE_EVENT_TYPE_BUFFERING:
case SPA_NODE_EVENT_TYPE_REQUEST_REFRESH:
case SPA_NODE_EVENT_TYPE_REQUEST_CLOCK_UPDATE:
pinos_log_warn ("unhandled node event %d", event->type);
break;
}
return TRUE;
}
static gboolean
handle_node_command (PinosStream *stream,
uint32_t seq,
SpaNodeCommand *command)
{
PinosStreamPrivate *priv = stream->priv;
switch (command->type) {
case SPA_NODE_COMMAND_INVALID:
break;
case SPA_NODE_COMMAND_PAUSE:
{
pinos_log_debug ("stream %p: pause %d", stream, seq);
add_state_change (stream, SPA_NODE_STATE_PAUSED);
add_async_complete (stream, seq, SPA_RESULT_OK);
if (!pinos_connection_flush (priv->conn))
pinos_log_warn ("stream %p: error writing connection", stream);
stream_set_state (stream, PINOS_STREAM_STATE_PAUSED, NULL);
break;
}
case SPA_NODE_COMMAND_START:
{
pinos_log_debug ("stream %p: start %d", stream, seq);
add_state_change (stream, SPA_NODE_STATE_STREAMING);
add_async_complete (stream, seq, SPA_RESULT_OK);
if (!pinos_connection_flush (priv->conn))
pinos_log_warn ("stream %p: error writing connection", stream);
if (priv->direction == SPA_DIRECTION_INPUT)
send_need_input (stream);
stream_set_state (stream, PINOS_STREAM_STATE_STREAMING, NULL);
break;
}
case SPA_NODE_COMMAND_FLUSH:
case SPA_NODE_COMMAND_DRAIN:
case SPA_NODE_COMMAND_MARKER:
{
pinos_log_warn ("unhandled node command %d", command->type);
add_async_complete (stream, seq, SPA_RESULT_NOT_IMPLEMENTED);
if (!pinos_connection_flush (priv->conn))
pinos_log_warn ("stream %p: error writing connection", stream);
break;
}
case SPA_NODE_COMMAND_CLOCK_UPDATE:
{
SpaNodeCommandClockUpdate *cu = (SpaNodeCommandClockUpdate *) command;
if (cu->flags & SPA_NODE_COMMAND_CLOCK_UPDATE_FLAG_LIVE) {
pinos_properties_set (priv->properties,
"pinos.latency.is-live", "1");
pinos_properties_setf (priv->properties,
"pinos.latency.min", "%"PRId64, cu->latency);
}
priv->last_ticks = cu->ticks;
priv->last_rate = cu->rate;
priv->last_monotonic = cu->monotonic_time;
break;
}
}
return TRUE;
}
static gboolean
parse_connection (PinosStream *stream)
{
PinosStreamPrivate *priv = stream->priv;
PinosConnection *conn = priv->conn;
while (pinos_connection_has_next (conn)) {
PinosMessageType type = pinos_connection_get_type (conn);
switch (type) {
case PINOS_MESSAGE_NODE_UPDATE:
case PINOS_MESSAGE_PORT_UPDATE:
case PINOS_MESSAGE_PORT_STATUS_CHANGE:
case PINOS_MESSAGE_NODE_STATE_CHANGE:
case PINOS_MESSAGE_PROCESS_BUFFER:
pinos_log_warn ("got unexpected message %d", type);
break;
case PINOS_MESSAGE_ADD_PORT:
case PINOS_MESSAGE_REMOVE_PORT:
pinos_log_warn ("add/remove port not supported");
break;
case PINOS_MESSAGE_SET_FORMAT:
{
PinosMessageSetFormat p;
gpointer mem;
if (!pinos_connection_parse_message (conn, &p))
break;
if (priv->format)
g_free (priv->format);
mem = malloc (pinos_serialize_format_get_size (p.format));
priv->format = pinos_serialize_format_copy_into (mem, p.format);
priv->pending_seq = p.seq;
g_object_notify (G_OBJECT (stream), "format");
stream_set_state (stream, PINOS_STREAM_STATE_READY, NULL);
break;
}
case PINOS_MESSAGE_SET_PROPERTY:
pinos_log_warn ("set property not implemented");
break;
case PINOS_MESSAGE_ADD_MEM:
{
PinosMessageAddMem p;
int fd;
MemId *m;
if (!pinos_connection_parse_message (conn, &p))
break;
fd = pinos_connection_get_fd (conn, p.fd_index, false);
if (fd == -1)
break;
m = find_mem (stream, p.mem_id);
if (m) {
pinos_log_debug ("update mem %u, fd %d, flags %d, size %zd", p.mem_id, fd, p.flags, p.size);
} else {
m = pinos_array_add (&priv->mem_ids, sizeof (MemId));
pinos_log_debug ("add mem %u, fd %d, flags %d, size %zd", p.mem_id, fd, p.flags, p.size);
}
m->id = p.mem_id;
m->fd = fd;
m->flags = p.flags;
m->ptr = NULL;
m->size = p.size;
break;
}
case PINOS_MESSAGE_USE_BUFFERS:
{
PinosMessageUseBuffers p;
BufferId *bid;
unsigned int i, j, len;
SpaBuffer *b;
if (!pinos_connection_parse_message (conn, &p))
break;
/* clear previous buffers */
clear_buffers (stream);
for (i = 0; i < p.n_buffers; i++) {
MemId *mid = find_mem (stream, p.buffers[i].mem_id);
if (mid == NULL) {
pinos_log_warn ("unknown memory id %u", mid->id);
continue;
}
if (mid->ptr == NULL) {
mid->ptr = mmap (NULL, mid->size, PROT_READ | PROT_WRITE, MAP_SHARED, mid->fd, 0);
if (mid->ptr == MAP_FAILED) {
mid->ptr = NULL;
pinos_log_warn ("Failed to mmap memory %zd %p: %s", mid->size, mid, strerror (errno));
continue;
}
}
len = pinos_array_get_len (&priv->buffer_ids, BufferId);
bid = pinos_array_add (&priv->buffer_ids, sizeof (BufferId));
bid->buf_ptr = SPA_MEMBER (mid->ptr, p.buffers[i].offset, void);
{
size_t size;
unsigned int i;
SpaMeta *m;
b = bid->buf_ptr;
size = sizeof (SpaBuffer);
m = SPA_MEMBER (b, SPA_PTR_TO_INT (b->metas), SpaMeta);
for (i = 0; i < b->n_metas; i++)
size += sizeof (SpaMeta) + m[i].size;
for (i = 0; i < b->n_datas; i++)
size += sizeof (SpaData);
b = bid->buf = g_memdup (bid->buf_ptr, size);
if (b->metas)
b->metas = SPA_MEMBER (b, SPA_PTR_TO_INT (b->metas), SpaMeta);
if (b->datas) {
bid->datas = SPA_MEMBER (bid->buf_ptr, SPA_PTR_TO_INT (b->datas), SpaData);
b->datas = SPA_MEMBER (b, SPA_PTR_TO_INT (b->datas), SpaData);
}
}
bid->id = b->id;
if (bid->id != len) {
pinos_log_warn ("unexpected id %u found, expected %u", bid->id, len);
priv->in_order = FALSE;
}
pinos_log_debug ("add buffer %d %d %zd", mid->id, bid->id, p.buffers[i].offset);
for (j = 0; j < b->n_metas; j++) {
SpaMeta *m = &b->metas[j];
if (m->data)
m->data = SPA_MEMBER (bid->buf_ptr, SPA_PTR_TO_INT (m->data), void);
}
for (j = 0; j < b->n_datas; j++) {
SpaData *d = &b->datas[j];
switch (d->type) {
case SPA_DATA_TYPE_ID:
{
MemId *bmid = find_mem (stream, SPA_PTR_TO_UINT32 (d->data));
d->type = SPA_DATA_TYPE_MEMFD;
d->data = NULL;
d->fd = bmid->fd;
pinos_log_debug (" data %d %u -> fd %d", j, bmid->id, bmid->fd);
break;
}
case SPA_DATA_TYPE_MEMPTR:
{
d->data = SPA_MEMBER (bid->buf_ptr, SPA_PTR_TO_INT (d->data), void);
d->fd = -1;
pinos_log_debug (" data %d %u -> mem %p", j, bid->id, d->data);
break;
}
default:
pinos_log_warn ("unknown buffer data type %d", d->type);
break;
}
}
g_signal_emit (stream, signals[SIGNAL_ADD_BUFFER], 0, bid->id);
}
if (p.n_buffers) {
add_state_change (stream, SPA_NODE_STATE_PAUSED);
} else {
add_state_change (stream, SPA_NODE_STATE_READY);
}
add_async_complete (stream, p.seq, SPA_RESULT_OK);
if (!pinos_connection_flush (conn))
pinos_log_warn ("stream %p: error writing connection", stream);
if (p.n_buffers)
stream_set_state (stream, PINOS_STREAM_STATE_PAUSED, NULL);
else
stream_set_state (stream, PINOS_STREAM_STATE_READY, NULL);
break;
}
case PINOS_MESSAGE_NODE_EVENT:
{
PinosMessageNodeEvent p;
if (!pinos_connection_parse_message (conn, &p))
break;
handle_node_event (stream, p.event);
break;
}
case PINOS_MESSAGE_NODE_COMMAND:
{
PinosMessageNodeCommand p;
if (!pinos_connection_parse_message (conn, &p))
break;
handle_node_command (stream, p.seq, p.command);
break;
}
case PINOS_MESSAGE_PORT_COMMAND:
{
PinosMessagePortCommand p;
if (!pinos_connection_parse_message (conn, &p))
break;
break;
}
case PINOS_MESSAGE_TRANSPORT_UPDATE:
{
PinosMessageTransportUpdate p;
PinosTransportInfo info;
if (!pinos_connection_parse_message (conn, &p))
break;
info.memfd = pinos_connection_get_fd (conn, p.memfd_index, false);
if (info.memfd == -1)
break;
info.offset = p.offset;
info.size = p.size;
pinos_log_debug ("transport update %d %p", priv->rtfd, priv->trans);
if (priv->trans)
pinos_transport_free (priv->trans);
priv->trans = pinos_transport_new_from_info (&info);
break;
}
case PINOS_MESSAGE_INVALID:
pinos_log_warn ("unhandled message %d", type);
break;
}
}
return TRUE;
}
static gboolean
on_socket_condition (GSocket *socket,
GIOCondition condition,
gpointer user_data)
{
PinosStream *stream = user_data;
switch (condition) {
case G_IO_IN:
{
parse_connection (stream);
break;
}
case G_IO_OUT:
pinos_log_warn ("can do IO\n");
break;
default:
break;
}
return TRUE;
}
static gboolean
handle_rtnode_event (PinosStream *stream,
SpaNodeEvent *event)
{
PinosStreamPrivate *priv = stream->priv;
switch (event->type) {
case SPA_NODE_EVENT_TYPE_INVALID:
case SPA_NODE_EVENT_TYPE_ASYNC_COMPLETE:
case SPA_NODE_EVENT_TYPE_ERROR:
case SPA_NODE_EVENT_TYPE_BUFFERING:
case SPA_NODE_EVENT_TYPE_REQUEST_REFRESH:
case SPA_NODE_EVENT_TYPE_REQUEST_CLOCK_UPDATE:
pinos_log_warn ("unexpected node event %d", event->type);
break;
case SPA_NODE_EVENT_TYPE_HAVE_OUTPUT:
case SPA_NODE_EVENT_TYPE_NEED_INPUT:
pinos_log_warn ("unhandled node event %d", event->type);
break;
case SPA_NODE_EVENT_TYPE_REUSE_BUFFER:
{
SpaNodeEventReuseBuffer *p = (SpaNodeEventReuseBuffer *) event;
BufferId *bid;
if (p->port_id != priv->port_id)
break;
if (priv->direction != SPA_DIRECTION_OUTPUT)
break;
if ((bid = find_buffer (stream, p->buffer_id))) {
bid->used = FALSE;
g_signal_emit (stream, signals[SIGNAL_NEW_BUFFER], 0, p->buffer_id);
}
break;
}
}
return TRUE;
}
static gboolean
on_rtsocket_condition (GSocket *socket,
GIOCondition condition,
gpointer user_data)
{
PinosStream *stream = user_data;
PinosStreamPrivate *priv = stream->priv;
switch (condition) {
case G_IO_IN:
{
uint8_t cmd;
int i;
read (priv->rtfd, &cmd, 1);
if (cmd & PINOS_TRANSPORT_CMD_HAVE_DATA) {
BufferId *bid;
for (i = 0; i < priv->trans->area->n_inputs; i++) {
SpaPortInput *input = &priv->trans->inputs[i];
if (input->buffer_id == SPA_ID_INVALID)
continue;
if ((bid = find_buffer (stream, input->buffer_id))) {
for (i = 0; i < bid->buf->n_datas; i++) {
bid->buf->datas[i].size = bid->datas[i].size;
}
g_signal_emit (stream, signals[SIGNAL_NEW_BUFFER], 0, bid->id);
}
input->buffer_id = SPA_ID_INVALID;
}
send_need_input (stream);
}
if (cmd & PINOS_TRANSPORT_CMD_HAVE_EVENT) {
SpaNodeEvent event;
while (pinos_transport_next_event (priv->trans, &event) == SPA_RESULT_OK) {
SpaNodeEvent *ev = alloca (event.size);
pinos_transport_parse_event (priv->trans, ev);
handle_rtnode_event (stream, ev);
}
}
break;
}
case G_IO_OUT:
pinos_log_warn ("can do IO");
break;
default:
break;
}
return TRUE;
}
static gboolean
on_timeout (gpointer user_data)
{
PinosStream *stream = user_data;
PinosStreamPrivate *priv = stream->priv;
add_request_clock_update (stream);
if (!pinos_connection_flush (priv->conn))
pinos_log_warn ("stream %p: error writing connection", stream);
return G_SOURCE_CONTINUE;
}
static void
handle_socket (PinosStream *stream, gint fd, gint rtfd)
{
PinosStreamPrivate *priv = stream->priv;
GError *error = NULL;
priv->socket = g_socket_new_from_fd (fd, &error);
if (priv->socket == NULL)
goto socket_failed;
priv->rtsocket = g_socket_new_from_fd (rtfd, &error);
if (priv->rtsocket == NULL)
goto socket_failed;
priv->fd = g_socket_get_fd (priv->socket);
priv->socket_source = g_socket_create_source (priv->socket, G_IO_IN, NULL);
g_source_set_callback (priv->socket_source, (GSourceFunc) on_socket_condition, stream, NULL);
g_source_attach (priv->socket_source, priv->context->priv->context);
priv->conn = pinos_connection_new (priv->fd);
priv->rtfd = g_socket_get_fd (priv->rtsocket);
priv->rtsocket_source = g_socket_create_source (priv->rtsocket, G_IO_IN, NULL);
g_source_set_callback (priv->rtsocket_source, (GSourceFunc) on_rtsocket_condition, stream, NULL);
g_source_attach (priv->rtsocket_source, priv->context->priv->context);
pinos_log_debug ("sockets %d %d", priv->fd, priv->rtfd);
priv->timeout_source = g_timeout_source_new (100);
g_source_set_callback (priv->timeout_source, (GSourceFunc) on_timeout, stream, NULL);
g_source_attach (priv->timeout_source, priv->context->priv->context);
return;
/* ERRORS */
socket_failed:
{
pinos_log_warn ("failed to create socket: %s", error->message);
stream_set_state (stream, PINOS_STREAM_STATE_ERROR, error);
return;
}
}
static void
unhandle_socket (PinosStream *stream)
{
PinosStreamPrivate *priv = stream->priv;
if (priv->socket_source) {
g_source_destroy (priv->socket_source);
g_clear_pointer (&priv->socket_source, g_source_unref);
}
if (priv->rtsocket_source) {
g_source_destroy (priv->rtsocket_source);
g_clear_pointer (&priv->rtsocket_source, g_source_unref);
}
}
static void
on_node_proxy (GObject *source_object,
GAsyncResult *res,
gpointer user_data)
{
PinosStream *stream = user_data;
PinosStreamPrivate *priv = stream->priv;
PinosContext *context = priv->context;
GError *error = NULL;
priv->node = pinos_subscribe_get_proxy_finish (context->priv->subscribe,
res,
&error);
if (priv->node == NULL)
goto node_failed;
do_node_init (stream);
stream_set_state (stream, PINOS_STREAM_STATE_CONFIGURE, NULL);
g_object_unref (stream);
return;
node_failed:
{
pinos_log_warn ("failed to get node proxy: %s", error->message);
stream_set_state (stream, PINOS_STREAM_STATE_ERROR, error);
g_object_unref (stream);
return;
}
}
static void
on_node_created (GObject *source_object,
GAsyncResult *res,
gpointer user_data)
{
PinosStream *stream = user_data;
PinosStreamPrivate *priv = stream->priv;
PinosContext *context = priv->context;
GVariant *ret;
GError *error = NULL;
const gchar *node_path;
GUnixFDList *fd_list;
gint fd_idx, fd;
gint rtfd_idx, rtfd;
g_assert (context->priv->daemon == G_DBUS_PROXY (source_object));
ret = g_dbus_proxy_call_with_unix_fd_list_finish (context->priv->daemon,
&fd_list,
res, &error);
if (ret == NULL)
goto create_failed;
g_variant_get (ret, "(&ohh)", &node_path, &fd_idx, &rtfd_idx);
g_variant_unref (ret);
if ((fd = g_unix_fd_list_get (fd_list, fd_idx, &error)) < 0)
goto fd_failed;
if ((rtfd = g_unix_fd_list_get (fd_list, rtfd_idx, &error)) < 0)
goto fd_failed;
priv->fd = fd;
priv->rtfd = rtfd;
g_object_unref (fd_list);
handle_socket (stream, priv->fd, priv->rtfd);
pinos_subscribe_get_proxy (context->priv->subscribe,
PINOS_DBUS_SERVICE,
node_path,
"org.pinos.Node1",
NULL,
on_node_proxy,
stream);
return;
/* ERRORS */
create_failed:
{
pinos_log_warn ("failed to connect: %s", error->message);
goto exit_error;
}
fd_failed:
{
pinos_log_warn ("failed to get FD: %s", error->message);
g_object_unref (fd_list);
goto exit_error;
}
exit_error:
{
stream_set_state (stream, PINOS_STREAM_STATE_ERROR, error);
g_object_unref (stream);
return;
}
}
static gboolean
do_connect (PinosStream *stream)
{
PinosStreamPrivate *priv = stream->priv;
PinosContext *context = priv->context;
if (priv->properties == NULL)
priv->properties = pinos_properties_new (NULL, NULL);
if (priv->path)
pinos_properties_set (priv->properties,
"pinos.target.node", priv->path);
g_dbus_proxy_call (context->priv->daemon,
"CreateClientNode",
g_variant_new ("(s@a{sv})",
"client-node",
pinos_properties_to_variant (priv->properties)),
G_DBUS_CALL_FLAGS_NONE,
-1,
NULL, /* GCancellable *cancellable */
on_node_created,
stream);
return FALSE;
}
/**
* pinos_stream_connect:
* @stream: a #PinosStream
* @direction: the stream direction
* @mode: a #PinosStreamMode
* @port_path: the port path to connect to or %NULL to get the default port
* @flags: a #PinosStreamFlags
* @possible_formats: (transfer full): a #GPtrArray with possible accepted formats
*
* Connect @stream for input or output on @port_path.
*
* When @mode is #PINOS_STREAM_MODE_BUFFER, you should connect to the new-buffer
* signal and use pinos_stream_capture_buffer() to get the latest metadata and
* data.
*
* Returns: %TRUE on success.
*/
gboolean
pinos_stream_connect (PinosStream *stream,
PinosDirection direction,
PinosStreamMode mode,
const gchar *port_path,
PinosStreamFlags flags,
GPtrArray *possible_formats)
{
PinosStreamPrivate *priv;
PinosContext *context;
g_return_val_if_fail (PINOS_IS_STREAM (stream), FALSE);
g_return_val_if_fail (possible_formats != NULL, FALSE);
priv = stream->priv;
context = priv->context;
g_return_val_if_fail (pinos_context_get_state (context) == PINOS_CONTEXT_STATE_CONNECTED, FALSE);
g_return_val_if_fail (pinos_stream_get_state (stream) == PINOS_STREAM_STATE_UNCONNECTED, FALSE);
priv->direction = direction == PINOS_DIRECTION_INPUT ? SPA_DIRECTION_INPUT : SPA_DIRECTION_OUTPUT;
priv->port_id = 0;
priv->mode = mode;
g_free (priv->path);
priv->path = g_strdup (port_path);
priv->flags = flags;
if (priv->possible_formats)
g_ptr_array_unref (priv->possible_formats);
priv->possible_formats = possible_formats;
stream_set_state (stream, PINOS_STREAM_STATE_CONNECTING, NULL);
g_main_context_invoke (context->priv->context,
(GSourceFunc) do_connect,
g_object_ref (stream));
return TRUE;
}
/**
* pinos_stream_finish_format:
* @stream: a #PinosStream
* @res: a #SpaResult
* @params: an array of pointers to #SpaAllocParam
* @n_params: number of elements in @params
*
* Complete the negotiation process with result code @res.
*
* This function should be called after notification of the format.
* When @res indicates success, @params contain the parameters for the
* allocation state.
*
* Returns: %TRUE on success
*/
gboolean
pinos_stream_finish_format (PinosStream *stream,
SpaResult res,
SpaAllocParam **params,
unsigned int n_params)
{
PinosStreamPrivate *priv;
PinosContext *context;
g_return_val_if_fail (PINOS_IS_STREAM (stream), FALSE);
priv = stream->priv;
g_return_val_if_fail (priv->pending_seq != SPA_ID_INVALID, FALSE);
context = priv->context;
g_return_val_if_fail (pinos_context_get_state (context) == PINOS_CONTEXT_STATE_CONNECTED, FALSE);
priv->port_info.params = params;
priv->port_info.n_params = n_params;
if (SPA_RESULT_IS_OK (res)) {
add_port_update (stream, PINOS_MESSAGE_PORT_UPDATE_INFO |
PINOS_MESSAGE_PORT_UPDATE_FORMAT);
if (priv->format) {
add_state_change (stream, SPA_NODE_STATE_READY);
} else {
clear_buffers (stream);
add_state_change (stream, SPA_NODE_STATE_CONFIGURE);
}
}
priv->port_info.params = NULL;
priv->port_info.n_params = 0;
add_async_complete (stream, priv->pending_seq, res);
priv->pending_seq = SPA_ID_INVALID;
if (!pinos_connection_flush (priv->conn))
pinos_log_warn ("stream %p: error writing connection", stream);
return TRUE;
}
static gboolean
do_start (PinosStream *stream)
{
g_object_unref (stream);
return FALSE;
}
/**
* pinos_stream_start:
* @stream: a #PinosStream
*
* Start capturing from @stream.
*
*
* Returns: %TRUE on success.
*/
gboolean
pinos_stream_start (PinosStream *stream)
{
PinosStreamPrivate *priv;
g_return_val_if_fail (PINOS_IS_STREAM (stream), FALSE);
priv = stream->priv;
//g_return_val_if_fail (priv->state == PINOS_STREAM_STATE_PAUSED, FALSE);
g_main_context_invoke (priv->context->priv->context,
(GSourceFunc) do_start,
g_object_ref (stream));
return TRUE;
}
static gboolean
do_stop (PinosStream *stream)
{
g_object_unref (stream);
return FALSE;
}
/**
* pinos_stream_stop:
* @stream: a #PinosStream
*
* Stop capturing from @stream.
*
* Returns: %TRUE on success.
*/
gboolean
pinos_stream_stop (PinosStream *stream)
{
PinosStreamPrivate *priv;
g_return_val_if_fail (PINOS_IS_STREAM (stream), FALSE);
priv = stream->priv;
g_return_val_if_fail (priv->state == PINOS_STREAM_STATE_STREAMING, FALSE);
g_main_context_invoke (priv->context->priv->context,
(GSourceFunc) do_stop,
g_object_ref (stream));
return TRUE;
}
static void
on_node_removed (GObject *source_object,
GAsyncResult *res,
gpointer user_data)
{
PinosStream *stream = user_data;
PinosStreamPrivate *priv = stream->priv;
GVariant *ret;
GError *error = NULL;
g_assert (priv->node == G_DBUS_PROXY (source_object));
priv->disconnecting = FALSE;
g_clear_object (&priv->node);
ret = g_dbus_proxy_call_finish (G_DBUS_PROXY (source_object), res, &error);
if (ret == NULL)
goto proxy_failed;
g_variant_unref (ret);
unhandle_socket (stream);
stream_set_state (stream, PINOS_STREAM_STATE_UNCONNECTED, NULL);
g_object_unref (stream);
return;
/* ERRORS */
proxy_failed:
{
pinos_log_warn ("failed to disconnect: %s", error->message);
stream_set_state (stream, PINOS_STREAM_STATE_ERROR, error);
g_object_unref (stream);
return;
}
}
static gboolean
do_disconnect (PinosStream *stream)
{
PinosStreamPrivate *priv = stream->priv;
g_dbus_proxy_call (priv->node,
"Remove",
g_variant_new ("()"),
G_DBUS_CALL_FLAGS_NONE,
-1,
NULL, /* GCancellable *cancellable */
on_node_removed,
stream);
return FALSE;
}
/**
* pinos_stream_disconnect:
* @stream: a #PinosStream
*
* Disconnect @stream.
*
* Returns: %TRUE on success
*/
gboolean
pinos_stream_disconnect (PinosStream *stream)
{
PinosStreamPrivate *priv;
PinosContext *context;
g_return_val_if_fail (PINOS_IS_STREAM (stream), FALSE);
priv = stream->priv;
g_return_val_if_fail (priv->state >= PINOS_STREAM_STATE_READY, FALSE);
g_return_val_if_fail (priv->node != NULL, FALSE);
context = priv->context;
g_return_val_if_fail (pinos_context_get_state (context) >= PINOS_CONTEXT_STATE_CONNECTED, FALSE);
g_return_val_if_fail (!priv->disconnecting, FALSE);
priv->disconnecting = TRUE;
g_main_context_invoke (context->priv->context,
(GSourceFunc) do_disconnect,
g_object_ref (stream));
return TRUE;
}
gboolean
pinos_stream_get_time (PinosStream *stream,
PinosTime *time)
{
PinosStreamPrivate *priv;
gint64 now, elapsed;
g_return_val_if_fail (PINOS_IS_STREAM (stream), FALSE);
priv = stream->priv;
g_return_val_if_fail (time, FALSE);
now = g_get_monotonic_time ();
elapsed = now - (priv->last_monotonic / 1000);
time->ticks = priv->last_ticks + (elapsed * priv->last_rate) / G_USEC_PER_SEC;
time->rate = priv->last_rate;
return TRUE;
}
/**
* pinos_stream_get_empty_buffer:
* @stream: a #PinosStream
*
* Get the id of an empty buffer that can be filled
*
* Returns: the id of an empty buffer or #SPA_ID_INVALID when no buffer is
* available.
*/
guint
pinos_stream_get_empty_buffer (PinosStream *stream)
{
PinosStreamPrivate *priv;
BufferId *bid;
g_return_val_if_fail (PINOS_IS_STREAM (stream), FALSE);
priv = stream->priv;
g_return_val_if_fail (priv->direction == SPA_DIRECTION_OUTPUT, FALSE);
pinos_array_for_each (bid, &priv->buffer_ids) {
if (!bid->used)
return bid->id;
}
return SPA_ID_INVALID;
}
/**
* pinos_stream_recycle_buffer:
* @stream: a #PinosStream
* @id: a buffer id
*
* Recycle the buffer with @id.
*
* Returns: %TRUE on success.
*/
gboolean
pinos_stream_recycle_buffer (PinosStream *stream,
guint id)
{
PinosStreamPrivate *priv;
SpaNodeEventReuseBuffer rb;
uint8_t cmd = PINOS_TRANSPORT_CMD_HAVE_EVENT;
g_return_val_if_fail (PINOS_IS_STREAM (stream), FALSE);
g_return_val_if_fail (id != SPA_ID_INVALID, FALSE);
priv = stream->priv;
g_return_val_if_fail (priv->direction == SPA_DIRECTION_INPUT, FALSE);
rb.event.type = SPA_NODE_EVENT_TYPE_REUSE_BUFFER;
rb.event.size = sizeof (rb);
rb.port_id = priv->port_id;
rb.buffer_id = id;
pinos_transport_add_event (priv->trans, &rb.event);
write (priv->rtfd, &cmd, 1);
return TRUE;
}
/**
* pinos_stream_peek_buffer:
* @stream: a #PinosStream
* @id: the buffer id
*
* Get the buffer with @id from @stream. This function should be called from
* the new-buffer signal callback.
*
* Returns: a #SpaBuffer or %NULL when there is no buffer.
*/
SpaBuffer *
pinos_stream_peek_buffer (PinosStream *stream, guint id)
{
BufferId *bid;
g_return_val_if_fail (PINOS_IS_STREAM (stream), NULL);
if ((bid = find_buffer (stream, id)))
return bid->buf;
return NULL;
}
/**
* pinos_stream_send_buffer:
* @stream: a #PinosStream
* @id: a buffer id
* @offset: the offset in the buffer
* @size: the size in the buffer
*
* Send a buffer with @id to @stream.
*
* For provider streams, this function should be called whenever there is a new frame
* available.
*
* Returns: %TRUE when @id was handled
*/
gboolean
pinos_stream_send_buffer (PinosStream *stream,
guint id)
{
PinosStreamPrivate *priv;
BufferId *bid;
guint i;
g_return_val_if_fail (PINOS_IS_STREAM (stream), FALSE);
g_return_val_if_fail (id != SPA_ID_INVALID, FALSE);
priv = stream->priv;
g_return_val_if_fail (priv->direction == SPA_DIRECTION_OUTPUT, FALSE);
if ((bid = find_buffer (stream, id))) {
uint8_t cmd = PINOS_TRANSPORT_CMD_HAVE_DATA;
bid->used = TRUE;
for (i = 0; i < bid->buf->n_datas; i++) {
bid->datas[i].size = bid->buf->datas[i].size;
}
priv->trans->outputs[0].buffer_id = id;
priv->trans->outputs[0].status = SPA_RESULT_OK;
write (priv->rtfd, &cmd, 1);
return TRUE;
} else {
return FALSE;
}
}
Reference in a new issue View git blame Copy permalink