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mediamanager.c
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mediamanager.c
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/**
* @file mediamanager.c Media Manager API
* @ingroup core
*/
/* purple
*
* Purple is the legal property of its developers, whose names are too numerous
* to list here. Please refer to the COPYRIGHT file distributed with this
* source distribution.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111-1301 USA
*/
#include "internal.h"
#include "account.h"
#include "debug.h"
#include "media.h"
#include "mediamanager.h"
#ifdef USE_GSTREAMER
#include "marshallers.h"
#include "media-gst.h"
#endif
#ifdef USE_VV
#include <media/backend-fs2.h>
#ifdef HAVE_FARSIGHT
#include <gst/farsight/fs-element-added-notifier.h>
#else
#include <farstream/fs-element-added-notifier.h>
#endif
#include <gst/interfaces/xoverlay.h>
/** @copydoc _PurpleMediaManagerPrivate */
typedef struct _PurpleMediaManagerPrivate PurpleMediaManagerPrivate;
/** @copydoc _PurpleMediaOutputWindow */
typedef struct _PurpleMediaOutputWindow PurpleMediaOutputWindow;
/** @copydoc _PurpleMediaManagerPrivate */
typedef struct _PurpleMediaElementInfoPrivate PurpleMediaElementInfoPrivate;
/** The media manager class. */
struct _PurpleMediaManagerClass
{
GObjectClass parent_class; /**< The parent class. */
};
/** The media manager's data. */
struct _PurpleMediaManager
{
GObject parent; /**< The parent of this manager. */
PurpleMediaManagerPrivate *priv; /**< Private data for the manager. */
};
struct _PurpleMediaOutputWindow
{
gulong id;
PurpleMedia *media;
gchar *session_id;
gchar *participant;
gulong window_id;
GstElement *sink;
};
struct _PurpleMediaManagerPrivate
{
GstElement *pipeline;
PurpleMediaCaps ui_caps;
GList *medias;
GList *elements;
GList *output_windows;
gulong next_output_window_id;
GType backend_type;
GstCaps *video_caps;
PurpleMediaElementInfo *video_src;
PurpleMediaElementInfo *video_sink;
PurpleMediaElementInfo *audio_src;
PurpleMediaElementInfo *audio_sink;
};
#define PURPLE_MEDIA_MANAGER_GET_PRIVATE(obj) (G_TYPE_INSTANCE_GET_PRIVATE((obj), PURPLE_TYPE_MEDIA_MANAGER, PurpleMediaManagerPrivate))
#define PURPLE_MEDIA_ELEMENT_INFO_GET_PRIVATE(obj) (G_TYPE_INSTANCE_GET_PRIVATE((obj), PURPLE_TYPE_MEDIA_ELEMENT_INFO, PurpleMediaElementInfoPrivate))
static void purple_media_manager_class_init (PurpleMediaManagerClass *klass);
static void purple_media_manager_init (PurpleMediaManager *media);
static void purple_media_manager_finalize (GObject *object);
static GObjectClass *parent_class = NULL;
enum {
INIT_MEDIA,
UI_CAPS_CHANGED,
LAST_SIGNAL
};
static guint purple_media_manager_signals[LAST_SIGNAL] = {0};
#endif
GType
purple_media_manager_get_type()
{
#ifdef USE_VV
static GType type = 0;
if (type == 0) {
static const GTypeInfo info = {
sizeof(PurpleMediaManagerClass),
NULL,
NULL,
(GClassInitFunc) purple_media_manager_class_init,
NULL,
NULL,
sizeof(PurpleMediaManager),
0,
(GInstanceInitFunc) purple_media_manager_init,
NULL
};
type = g_type_register_static(G_TYPE_OBJECT, "PurpleMediaManager", &info, 0);
}
return type;
#else
return G_TYPE_NONE;
#endif
}
#ifdef USE_VV
static void
purple_media_manager_class_init (PurpleMediaManagerClass *klass)
{
GObjectClass *gobject_class = (GObjectClass*)klass;
parent_class = g_type_class_peek_parent(klass);
gobject_class->finalize = purple_media_manager_finalize;
purple_media_manager_signals[INIT_MEDIA] = g_signal_new ("init-media",
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST,
0, NULL, NULL,
purple_smarshal_BOOLEAN__OBJECT_POINTER_STRING,
G_TYPE_BOOLEAN, 3, PURPLE_TYPE_MEDIA,
G_TYPE_POINTER, G_TYPE_STRING);
purple_media_manager_signals[UI_CAPS_CHANGED] = g_signal_new ("ui-caps-changed",
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST,
0, NULL, NULL,
purple_smarshal_VOID__FLAGS_FLAGS,
G_TYPE_NONE, 2, PURPLE_MEDIA_TYPE_CAPS,
PURPLE_MEDIA_TYPE_CAPS);
g_type_class_add_private(klass, sizeof(PurpleMediaManagerPrivate));
}
static void
purple_media_manager_init (PurpleMediaManager *media)
{
media->priv = PURPLE_MEDIA_MANAGER_GET_PRIVATE(media);
media->priv->medias = NULL;
media->priv->next_output_window_id = 1;
#ifdef USE_VV
media->priv->backend_type = PURPLE_TYPE_MEDIA_BACKEND_FS2;
#endif
purple_prefs_add_none("/purple/media");
purple_prefs_add_none("/purple/media/audio");
purple_prefs_add_int("/purple/media/audio/silence_threshold", 5);
purple_prefs_add_none("/purple/media/audio/volume");
purple_prefs_add_int("/purple/media/audio/volume/input", 10);
purple_prefs_add_int("/purple/media/audio/volume/output", 10);
}
static void
purple_media_manager_finalize (GObject *media)
{
PurpleMediaManagerPrivate *priv = PURPLE_MEDIA_MANAGER_GET_PRIVATE(media);
for (; priv->medias; priv->medias =
g_list_delete_link(priv->medias, priv->medias)) {
g_object_unref(priv->medias->data);
}
for (; priv->elements; priv->elements =
g_list_delete_link(priv->elements, priv->elements)) {
g_object_unref(priv->elements->data);
}
if (priv->video_caps)
gst_caps_unref(priv->video_caps);
parent_class->finalize(media);
}
#endif
PurpleMediaManager *
purple_media_manager_get()
{
#ifdef USE_VV
static PurpleMediaManager *manager = NULL;
if (manager == NULL)
manager = PURPLE_MEDIA_MANAGER(g_object_new(purple_media_manager_get_type(), NULL));
return manager;
#else
return NULL;
#endif
}
#ifdef USE_VV
static gboolean
pipeline_bus_call(GstBus *bus, GstMessage *msg, PurpleMediaManager *manager)
{
switch(GST_MESSAGE_TYPE(msg)) {
case GST_MESSAGE_EOS:
purple_debug_info("mediamanager", "End of Stream\n");
break;
case GST_MESSAGE_ERROR: {
gchar *debug = NULL;
GError *err = NULL;
gst_message_parse_error(msg, &err, &debug);
purple_debug_error("mediamanager",
"gst pipeline error: %s\n",
err->message);
g_error_free(err);
if (debug) {
purple_debug_error("mediamanager",
"Debug details: %s\n", debug);
g_free (debug);
}
break;
}
default:
break;
}
return TRUE;
}
#endif
#ifdef USE_GSTREAMER
GstElement *
purple_media_manager_get_pipeline(PurpleMediaManager *manager)
{
#ifdef USE_VV
g_return_val_if_fail(PURPLE_IS_MEDIA_MANAGER(manager), NULL);
if (manager->priv->pipeline == NULL) {
FsElementAddedNotifier *notifier;
gchar *filename;
GError *err = NULL;
GKeyFile *keyfile;
GstBus *bus;
manager->priv->pipeline = gst_pipeline_new(NULL);
bus = gst_pipeline_get_bus(
GST_PIPELINE(manager->priv->pipeline));
gst_bus_add_signal_watch(GST_BUS(bus));
g_signal_connect(G_OBJECT(bus), "message",
G_CALLBACK(pipeline_bus_call), manager);
gst_bus_set_sync_handler(bus,
gst_bus_sync_signal_handler, NULL);
gst_object_unref(bus);
filename = g_build_filename(purple_user_dir(),
"fs-element.conf", NULL);
keyfile = g_key_file_new();
if (!g_key_file_load_from_file(keyfile, filename,
G_KEY_FILE_NONE, &err)) {
if (err->code == 4)
purple_debug_info("mediamanager",
"Couldn't read "
"fs-element.conf: %s\n",
err->message);
else
purple_debug_error("mediamanager",
"Error reading "
"fs-element.conf: %s\n",
err->message);
g_error_free(err);
}
g_free(filename);
/* Hack to make alsasrc stop messing up audio timestamps */
if (!g_key_file_has_key(keyfile,
"alsasrc", "slave-method", NULL)) {
g_key_file_set_integer(keyfile,
"alsasrc", "slave-method", 2);
}
notifier = fs_element_added_notifier_new();
fs_element_added_notifier_add(notifier,
GST_BIN(manager->priv->pipeline));
fs_element_added_notifier_set_properties_from_keyfile(
notifier, keyfile);
gst_element_set_state(manager->priv->pipeline,
GST_STATE_PLAYING);
}
return manager->priv->pipeline;
#else
return NULL;
#endif
}
#endif /* USE_GSTREAMER */
PurpleMedia *
purple_media_manager_create_media(PurpleMediaManager *manager,
PurpleAccount *account,
const char *conference_type,
const char *remote_user,
gboolean initiator)
{
#ifdef USE_VV
PurpleMedia *media;
gboolean signal_ret;
media = PURPLE_MEDIA(g_object_new(purple_media_get_type(),
"manager", manager,
"account", account,
"conference-type", conference_type,
"initiator", initiator,
NULL));
g_signal_emit(manager, purple_media_manager_signals[INIT_MEDIA], 0,
media, account, remote_user, &signal_ret);
if (signal_ret == FALSE) {
g_object_unref(media);
return NULL;
}
manager->priv->medias = g_list_append(manager->priv->medias, media);
return media;
#else
return NULL;
#endif
}
GList *
purple_media_manager_get_media(PurpleMediaManager *manager)
{
#ifdef USE_VV
return manager->priv->medias;
#else
return NULL;
#endif
}
GList *
purple_media_manager_get_media_by_account(PurpleMediaManager *manager,
PurpleAccount *account)
{
#ifdef USE_VV
GList *media = NULL;
GList *iter;
g_return_val_if_fail(PURPLE_IS_MEDIA_MANAGER(manager), NULL);
iter = manager->priv->medias;
for (; iter; iter = g_list_next(iter)) {
if (purple_media_get_account(iter->data) == account) {
media = g_list_prepend(media, iter->data);
}
}
return media;
#else
return NULL;
#endif
}
void
purple_media_manager_remove_media(PurpleMediaManager *manager,
PurpleMedia *media)
{
#ifdef USE_VV
GList *list = g_list_find(manager->priv->medias, media);
if (list)
manager->priv->medias =
g_list_delete_link(manager->priv->medias, list);
#endif
}
#ifdef USE_VV
static void
request_pad_unlinked_cb(GstPad *pad, GstPad *peer, gpointer user_data)
{
GstElement *parent = GST_ELEMENT_PARENT(pad);
GstIterator *iter;
GstPad *remaining_pad;
GstIteratorResult result;
gst_element_release_request_pad(GST_ELEMENT_PARENT(pad), pad);
iter = gst_element_iterate_src_pads(parent);
result = gst_iterator_next(iter, (gpointer)&remaining_pad);
if (result == GST_ITERATOR_DONE) {
gst_element_set_locked_state(parent, TRUE);
gst_element_set_state(parent, GST_STATE_NULL);
gst_bin_remove(GST_BIN(GST_ELEMENT_PARENT(parent)), parent);
} else if (result == GST_ITERATOR_OK) {
gst_object_unref(remaining_pad);
}
gst_iterator_free(iter);
}
#endif
#ifdef USE_GSTREAMER
void
purple_media_manager_set_video_caps(PurpleMediaManager *manager, GstCaps *caps)
{
#ifdef USE_VV
if (manager->priv->video_caps)
gst_caps_unref(manager->priv->video_caps);
manager->priv->video_caps = caps;
if (manager->priv->pipeline && manager->priv->video_src) {
gchar *id = purple_media_element_info_get_id(manager->priv->video_src);
GstElement *src = gst_bin_get_by_name(GST_BIN(manager->priv->pipeline), id);
if (src) {
GstElement *capsfilter = gst_bin_get_by_name(GST_BIN(src), "prpl_video_caps");
g_object_set(G_OBJECT(capsfilter), "caps", caps, NULL);
}
g_free(id);
}
#endif
}
GstCaps *
purple_media_manager_get_video_caps(PurpleMediaManager *manager)
{
#ifdef USE_VV
if (manager->priv->video_caps == NULL)
manager->priv->video_caps = gst_caps_from_string("video/x-raw-yuv,"
"width=[250,352], height=[200,288], framerate=[1/1,20/1]");
return manager->priv->video_caps;
#else
return NULL;
#endif
}
GstElement *
purple_media_manager_get_element(PurpleMediaManager *manager,
PurpleMediaSessionType type, PurpleMedia *media,
const gchar *session_id, const gchar *participant)
{
#ifdef USE_VV
GstElement *ret = NULL;
PurpleMediaElementInfo *info = NULL;
PurpleMediaElementType element_type;
if (type & PURPLE_MEDIA_SEND_AUDIO)
info = manager->priv->audio_src;
else if (type & PURPLE_MEDIA_RECV_AUDIO)
info = manager->priv->audio_sink;
else if (type & PURPLE_MEDIA_SEND_VIDEO)
info = manager->priv->video_src;
else if (type & PURPLE_MEDIA_RECV_VIDEO)
info = manager->priv->video_sink;
if (info == NULL)
return NULL;
element_type = purple_media_element_info_get_element_type(info);
if (element_type & PURPLE_MEDIA_ELEMENT_UNIQUE &&
element_type & PURPLE_MEDIA_ELEMENT_SRC) {
GstElement *tee;
GstPad *pad;
GstPad *ghost;
gchar *id = purple_media_element_info_get_id(info);
ret = gst_bin_get_by_name(GST_BIN(
purple_media_manager_get_pipeline(
manager)), id);
if (ret == NULL) {
GstElement *bin, *fakesink;
ret = purple_media_element_info_call_create(info,
media, session_id, participant);
bin = gst_bin_new(id);
tee = gst_element_factory_make("tee", "tee");
gst_bin_add_many(GST_BIN(bin), ret, tee, NULL);
if (type & PURPLE_MEDIA_SEND_VIDEO) {
GstElement *videoscale;
GstElement *capsfilter;
videoscale = gst_element_factory_make("videoscale", NULL);
capsfilter = gst_element_factory_make("capsfilter", "prpl_video_caps");
g_object_set(G_OBJECT(capsfilter),
"caps", purple_media_manager_get_video_caps(manager), NULL);
gst_bin_add_many(GST_BIN(bin), videoscale, capsfilter, NULL);
gst_element_link_many(ret, videoscale, capsfilter, tee, NULL);
} else
gst_element_link(ret, tee);
/*
* This shouldn't be necessary, but it stops it from
* giving a not-linked error upon destruction
*/
fakesink = gst_element_factory_make("fakesink", NULL);
g_object_set(fakesink, "sync", FALSE, NULL);
gst_bin_add(GST_BIN(bin), fakesink);
gst_element_link(tee, fakesink);
ret = bin;
gst_object_ref(ret);
gst_bin_add(GST_BIN(purple_media_manager_get_pipeline(
manager)), ret);
}
g_free(id);
tee = gst_bin_get_by_name(GST_BIN(ret), "tee");
pad = gst_element_get_request_pad(tee, "src%d");
gst_object_unref(tee);
ghost = gst_ghost_pad_new(NULL, pad);
gst_object_unref(pad);
g_signal_connect(GST_PAD(ghost), "unlinked",
G_CALLBACK(request_pad_unlinked_cb), NULL);
gst_pad_set_active(ghost, TRUE);
gst_element_add_pad(ret, ghost);
} else {
ret = purple_media_element_info_call_create(info,
media, session_id, participant);
}
if (ret == NULL)
purple_debug_error("media", "Error creating source or sink\n");
return ret;
#else
return NULL;
#endif
}
PurpleMediaElementInfo *
purple_media_manager_get_element_info(PurpleMediaManager *manager,
const gchar *id)
{
#ifdef USE_VV
GList *iter;
g_return_val_if_fail(PURPLE_IS_MEDIA_MANAGER(manager), NULL);
iter = manager->priv->elements;
for (; iter; iter = g_list_next(iter)) {
gchar *element_id =
purple_media_element_info_get_id(iter->data);
if (!strcmp(element_id, id)) {
g_free(element_id);
g_object_ref(iter->data);
return iter->data;
}
g_free(element_id);
}
#endif
return NULL;
}
gboolean
purple_media_manager_register_element(PurpleMediaManager *manager,
PurpleMediaElementInfo *info)
{
#ifdef USE_VV
PurpleMediaElementInfo *info2;
gchar *id;
g_return_val_if_fail(PURPLE_IS_MEDIA_MANAGER(manager), FALSE);
g_return_val_if_fail(info != NULL, FALSE);
id = purple_media_element_info_get_id(info);
info2 = purple_media_manager_get_element_info(manager, id);
g_free(id);
if (info2 != NULL) {
g_object_unref(info2);
return FALSE;
}
manager->priv->elements =
g_list_prepend(manager->priv->elements, info);
return TRUE;
#else
return FALSE;
#endif
}
gboolean
purple_media_manager_unregister_element(PurpleMediaManager *manager,
const gchar *id)
{
#ifdef USE_VV
PurpleMediaElementInfo *info;
g_return_val_if_fail(PURPLE_IS_MEDIA_MANAGER(manager), FALSE);
info = purple_media_manager_get_element_info(manager, id);
if (info == NULL) {
g_object_unref(info);
return FALSE;
}
if (manager->priv->audio_src == info)
manager->priv->audio_src = NULL;
if (manager->priv->audio_sink == info)
manager->priv->audio_sink = NULL;
if (manager->priv->video_src == info)
manager->priv->video_src = NULL;
if (manager->priv->video_sink == info)
manager->priv->video_sink = NULL;
manager->priv->elements = g_list_remove(
manager->priv->elements, info);
g_object_unref(info);
return TRUE;
#else
return FALSE;
#endif
}
gboolean
purple_media_manager_set_active_element(PurpleMediaManager *manager,
PurpleMediaElementInfo *info)
{
#ifdef USE_VV
PurpleMediaElementInfo *info2;
PurpleMediaElementType type;
gboolean ret = FALSE;
gchar *id;
g_return_val_if_fail(PURPLE_IS_MEDIA_MANAGER(manager), FALSE);
g_return_val_if_fail(info != NULL, FALSE);
id = purple_media_element_info_get_id(info);
info2 = purple_media_manager_get_element_info(manager, id);
g_free(id);
if (info2 == NULL)
purple_media_manager_register_element(manager, info);
else
g_object_unref(info2);
type = purple_media_element_info_get_element_type(info);
if (type & PURPLE_MEDIA_ELEMENT_SRC) {
if (type & PURPLE_MEDIA_ELEMENT_AUDIO) {
manager->priv->audio_src = info;
ret = TRUE;
}
if (type & PURPLE_MEDIA_ELEMENT_VIDEO) {
manager->priv->video_src = info;
ret = TRUE;
}
}
if (type & PURPLE_MEDIA_ELEMENT_SINK) {
if (type & PURPLE_MEDIA_ELEMENT_AUDIO) {
manager->priv->audio_sink = info;
ret = TRUE;
}
if (type & PURPLE_MEDIA_ELEMENT_VIDEO) {
manager->priv->video_sink = info;
ret = TRUE;
}
}
return ret;
#else
return FALSE;
#endif
}
PurpleMediaElementInfo *
purple_media_manager_get_active_element(PurpleMediaManager *manager,
PurpleMediaElementType type)
{
#ifdef USE_VV
g_return_val_if_fail(PURPLE_IS_MEDIA_MANAGER(manager), NULL);
if (type & PURPLE_MEDIA_ELEMENT_SRC) {
if (type & PURPLE_MEDIA_ELEMENT_AUDIO)
return manager->priv->audio_src;
else if (type & PURPLE_MEDIA_ELEMENT_VIDEO)
return manager->priv->video_src;
} else if (type & PURPLE_MEDIA_ELEMENT_SINK) {
if (type & PURPLE_MEDIA_ELEMENT_AUDIO)
return manager->priv->audio_sink;
else if (type & PURPLE_MEDIA_ELEMENT_VIDEO)
return manager->priv->video_sink;
}
#endif
return NULL;
}
#endif /* USE_GSTREAMER */
#ifdef USE_VV
static void
window_id_cb(GstBus *bus, GstMessage *msg, PurpleMediaOutputWindow *ow)
{
GstElement *sink;
if (GST_MESSAGE_TYPE(msg) != GST_MESSAGE_ELEMENT ||
!gst_structure_has_name(msg->structure,
"prepare-xwindow-id"))
return;
sink = GST_ELEMENT(GST_MESSAGE_SRC(msg));
while (sink != ow->sink) {
if (sink == NULL)
return;
sink = GST_ELEMENT_PARENT(sink);
}
g_signal_handlers_disconnect_matched(bus, G_SIGNAL_MATCH_FUNC
| G_SIGNAL_MATCH_DATA, 0, 0, NULL,
window_id_cb, ow);
gst_x_overlay_set_xwindow_id(GST_X_OVERLAY(
GST_MESSAGE_SRC(msg)), ow->window_id);
}
#endif
gboolean
purple_media_manager_create_output_window(PurpleMediaManager *manager,
PurpleMedia *media, const gchar *session_id,
const gchar *participant)
{
#ifdef USE_VV
GList *iter;
g_return_val_if_fail(PURPLE_IS_MEDIA(media), FALSE);
iter = manager->priv->output_windows;
for(; iter; iter = g_list_next(iter)) {
PurpleMediaOutputWindow *ow = iter->data;
if (ow->sink == NULL && ow->media == media &&
((participant != NULL &&
ow->participant != NULL &&
!strcmp(participant, ow->participant)) ||
(participant == ow->participant)) &&
!strcmp(session_id, ow->session_id)) {
GstBus *bus;
GstElement *queue, *colorspace;
GstElement *tee = purple_media_get_tee(media,
session_id, participant);
if (tee == NULL)
continue;
queue = gst_element_factory_make(
"queue", NULL);
colorspace = gst_element_factory_make(
"ffmpegcolorspace", NULL);
ow->sink = purple_media_manager_get_element(
manager, PURPLE_MEDIA_RECV_VIDEO,
ow->media, ow->session_id,
ow->participant);
if (participant == NULL) {
/* aka this is a preview sink */
GObjectClass *klass =
G_OBJECT_GET_CLASS(ow->sink);
if (g_object_class_find_property(klass,
"sync"))
g_object_set(G_OBJECT(ow->sink),
"sync", "FALSE", NULL);
if (g_object_class_find_property(klass,
"async"))
g_object_set(G_OBJECT(ow->sink),
"async", FALSE, NULL);
}
gst_bin_add_many(GST_BIN(GST_ELEMENT_PARENT(tee)),
queue, colorspace, ow->sink, NULL);
bus = gst_pipeline_get_bus(GST_PIPELINE(
manager->priv->pipeline));
g_signal_connect(bus, "sync-message::element",
G_CALLBACK(window_id_cb), ow);
gst_object_unref(bus);
gst_element_set_state(ow->sink, GST_STATE_PLAYING);
gst_element_set_state(colorspace, GST_STATE_PLAYING);
gst_element_set_state(queue, GST_STATE_PLAYING);
gst_element_link(colorspace, ow->sink);
gst_element_link(queue, colorspace);
gst_element_link(tee, queue);
}
}
return TRUE;
#else
return FALSE;
#endif
}
gulong
purple_media_manager_set_output_window(PurpleMediaManager *manager,
PurpleMedia *media, const gchar *session_id,
const gchar *participant, gulong window_id)
{
#ifdef USE_VV
PurpleMediaOutputWindow *output_window;
g_return_val_if_fail(PURPLE_IS_MEDIA_MANAGER(manager), FALSE);
g_return_val_if_fail(PURPLE_IS_MEDIA(media), FALSE);
output_window = g_new0(PurpleMediaOutputWindow, 1);
output_window->id = manager->priv->next_output_window_id++;
output_window->media = media;
output_window->session_id = g_strdup(session_id);
output_window->participant = g_strdup(participant);
output_window->window_id = window_id;
manager->priv->output_windows = g_list_prepend(
manager->priv->output_windows, output_window);
if (purple_media_get_tee(media, session_id, participant) != NULL)
purple_media_manager_create_output_window(manager,
media, session_id, participant);
return output_window->id;
#else
return 0;
#endif
}
gboolean
purple_media_manager_remove_output_window(PurpleMediaManager *manager,
gulong output_window_id)
{
#ifdef USE_VV
PurpleMediaOutputWindow *output_window = NULL;
GList *iter;
g_return_val_if_fail(PURPLE_IS_MEDIA_MANAGER(manager), FALSE);
iter = manager->priv->output_windows;
for (; iter; iter = g_list_next(iter)) {
PurpleMediaOutputWindow *ow = iter->data;
if (ow->id == output_window_id) {
manager->priv->output_windows = g_list_delete_link(
manager->priv->output_windows, iter);
output_window = ow;
break;
}
}
if (output_window == NULL)
return FALSE;
if (output_window->sink != NULL) {
GstPad *pad = gst_element_get_static_pad(
output_window->sink, "sink");
GstPad *peer = gst_pad_get_peer(pad);
GstElement *colorspace = GST_ELEMENT_PARENT(peer), *queue;
gst_object_unref(pad);
gst_object_unref(peer);
pad = gst_element_get_static_pad(colorspace, "sink");
peer = gst_pad_get_peer(pad);
queue = GST_ELEMENT_PARENT(peer);
gst_object_unref(pad);
gst_object_unref(peer);
pad = gst_element_get_static_pad(queue, "sink");
peer = gst_pad_get_peer(pad);
gst_object_unref(pad);
if (peer != NULL)
gst_element_release_request_pad(GST_ELEMENT_PARENT(peer), peer);
gst_element_set_locked_state(queue, TRUE);
gst_element_set_state(queue, GST_STATE_NULL);
gst_bin_remove(GST_BIN(GST_ELEMENT_PARENT(queue)), queue);
gst_element_set_locked_state(colorspace, TRUE);
gst_element_set_state(colorspace, GST_STATE_NULL);
gst_bin_remove(GST_BIN(GST_ELEMENT_PARENT(colorspace)), colorspace);
gst_element_set_locked_state(output_window->sink, TRUE);
gst_element_set_state(output_window->sink, GST_STATE_NULL);
gst_bin_remove(GST_BIN(GST_ELEMENT_PARENT(output_window->sink)),
output_window->sink);
}
g_free(output_window->session_id);
g_free(output_window->participant);
g_free(output_window);
return TRUE;
#else
return FALSE;
#endif
}
void
purple_media_manager_remove_output_windows(PurpleMediaManager *manager,
PurpleMedia *media, const gchar *session_id,
const gchar *participant)
{
#ifdef USE_VV
GList *iter;
g_return_if_fail(PURPLE_IS_MEDIA(media));
iter = manager->priv->output_windows;
for (; iter;) {
PurpleMediaOutputWindow *ow = iter->data;
iter = g_list_next(iter);
if (media == ow->media &&
((session_id != NULL && ow->session_id != NULL &&
!strcmp(session_id, ow->session_id)) ||
(session_id == ow->session_id)) &&
((participant != NULL && ow->participant != NULL &&
!strcmp(participant, ow->participant)) ||
(participant == ow->participant)))
purple_media_manager_remove_output_window(
manager, ow->id);
}
#endif
}
void
purple_media_manager_set_ui_caps(PurpleMediaManager *manager,
PurpleMediaCaps caps)
{
#ifdef USE_VV
PurpleMediaCaps oldcaps;
g_return_if_fail(PURPLE_IS_MEDIA_MANAGER(manager));
oldcaps = manager->priv->ui_caps;
manager->priv->ui_caps = caps;
if (caps != oldcaps)
g_signal_emit(manager,
purple_media_manager_signals[UI_CAPS_CHANGED],
0, caps, oldcaps);
#endif
}
PurpleMediaCaps
purple_media_manager_get_ui_caps(PurpleMediaManager *manager)
{
#ifdef USE_VV
g_return_val_if_fail(PURPLE_IS_MEDIA_MANAGER(manager),
PURPLE_MEDIA_CAPS_NONE);
return manager->priv->ui_caps;
#else
return PURPLE_MEDIA_CAPS_NONE;
#endif
}
void
purple_media_manager_set_backend_type(PurpleMediaManager *manager,
GType backend_type)
{
#ifdef USE_VV
g_return_if_fail(PURPLE_IS_MEDIA_MANAGER(manager));
manager->priv->backend_type = backend_type;
#endif
}
GType
purple_media_manager_get_backend_type(PurpleMediaManager *manager)
{
#ifdef USE_VV
g_return_val_if_fail(PURPLE_IS_MEDIA_MANAGER(manager),
PURPLE_MEDIA_CAPS_NONE);
return manager->priv->backend_type;
#else
return G_TYPE_NONE;
#endif
}