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/*
* Copyright (C) 2010 Nokia Corporation.
* Copyright (C) 2012, 2013 Intel Corporation.
*
* Authors: Arun Raghavan <arun.raghavan@collabora.co.uk>
* Krzesimir Nowak <krnowak@openismus.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#include <gst/pbutils/pbutils.h>
#include "gupnp-dlna-gst-metadata-extractor.h"
#include "gupnp-dlna-gst-information.h"
#include "gupnp-dlna-gst-utils.h"
struct _GUPnPDLNAGstMetadataExtractorPrivate {
gpointer placeholder;
};
G_DEFINE_TYPE_WITH_PRIVATE (GUPnPDLNAGstMetadataExtractor,
gupnp_dlna_gst_metadata_extractor,
GUPNP_TYPE_DLNA_METADATA_EXTRACTOR)
static gboolean
unref_discoverer_in_idle (GstDiscoverer *discoverer)
{
if (discoverer)
g_object_unref (discoverer);
return FALSE;
}
static void
gupnp_dlna_discovered_cb (GUPnPDLNAMetadataExtractor *self,
GstDiscovererInfo *info,
GError *error,
gpointer user_data)
{
GstDiscoverer *discoverer = GST_DISCOVERER (user_data);
GUPnPDLNAInformation *gupnp_info = NULL;
if (error)
gupnp_info = GUPNP_DLNA_INFORMATION
(gupnp_dlna_gst_information_new_empty_with_uri
(gst_discoverer_info_get_uri (info)));
else
gupnp_info = gupnp_dlna_gst_utils_information_from_discoverer_info
(info);
gupnp_dlna_metadata_extractor_emit_done (self,
gupnp_info,
error);
g_object_unref (gupnp_info);
g_idle_add ((GSourceFunc) unref_discoverer_in_idle, discoverer);
}
static gboolean
backend_extract_async (GUPnPDLNAMetadataExtractor *extractor,
const gchar *uri,
guint timeout,
GError **error)
{
GError *gst_error = NULL;
GstClockTime clock_time = GST_MSECOND * timeout;
GstDiscoverer *discoverer = gst_discoverer_new (clock_time, &gst_error);
if (gst_error) {
g_propagate_error (error, gst_error);
return FALSE;
}
g_signal_connect_swapped (discoverer,
"discovered",
G_CALLBACK (gupnp_dlna_discovered_cb),
extractor);
gst_discoverer_start (discoverer);
return gst_discoverer_discover_uri_async (discoverer,
uri);
}
static GUPnPDLNAInformation *
backend_extract_sync (GUPnPDLNAMetadataExtractor *extractor G_GNUC_UNUSED,
const gchar *uri,
guint timeout_in_ms,
GError **error)
{
GError *gst_error = NULL;
GstClockTime clock_time = GST_MSECOND * timeout_in_ms;
GstDiscoverer *discoverer = gst_discoverer_new (clock_time, &gst_error);
GstDiscovererInfo* info;
GUPnPDLNAInformation *gupnp_info;
if (gst_error) {
g_propagate_error (error, gst_error);
return NULL;
}
info = gst_discoverer_discover_uri (discoverer,
uri,
&gst_error);
g_object_unref (discoverer);
if (gst_error) {
g_propagate_error (error, gst_error);
return NULL;
}
gupnp_info = GUPNP_DLNA_INFORMATION
(gupnp_dlna_gst_information_new_from_discoverer_info (uri, info));
gst_discoverer_info_unref (info);
return gupnp_info;
}
static void
gupnp_dlna_gst_metadata_extractor_class_init
(GUPnPDLNAGstMetadataExtractorClass *gst_extractor_class)
{
GUPnPDLNAMetadataExtractorClass *extractor_class =
GUPNP_DLNA_METADATA_EXTRACTOR_CLASS (gst_extractor_class);
extractor_class->extract_async = backend_extract_async;
extractor_class->extract_sync = backend_extract_sync;
}
static void
gupnp_dlna_gst_metadata_extractor_init (GUPnPDLNAGstMetadataExtractor *self)
{
self->priv = gupnp_dlna_gst_metadata_extractor_get_instance_private (self);
}
GUPnPDLNAGstMetadataExtractor *
gupnp_dlna_gst_metadata_extractor_new (void)
{
return GUPNP_DLNA_GST_METADATA_EXTRACTOR
(g_object_new (GUPNP_TYPE_DLNA_GST_METADATA_EXTRACTOR,
NULL));
}
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