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factory-uri: add a factory to stream any URI

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Make a factory that uses uridecodebin to decode any uri and autoplug a payloader
when we have one.
This commit is contained in:
Wim Taymans 2010-12-11 18:01:53 +01:00 committed by Wim Taymans
parent 34f0973831
commit 7ef0bf98da
4 changed files with 452 additions and 0 deletions
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2
gst/rtsp-server/Makefile.am
View file

@ -3,6 +3,7 @@ public_headers = \
rtsp-sdp.h \
rtsp-media.h \
rtsp-media-factory.h \
rtsp-media-factory-uri.h \
rtsp-media-mapping.h \
rtsp-session.h \
rtsp-session-pool.h \
@ -14,6 +15,7 @@ c_sources = \
rtsp-sdp.c \
rtsp-media.c \
rtsp-media-factory.c \
rtsp-media-factory-uri.c \
rtsp-media-mapping.c \
rtsp-session.c \
rtsp-session-pool.c \

373
gst/rtsp-server/rtsp-media-factory-uri.c Normal file
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@ -0,0 +1,373 @@
/* GStreamer
* Copyright (C) 2008 Wim Taymans <wim.taymans at 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., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include "rtsp-media-factory-uri.h"
#define DEFAULT_URI NULL
enum
{
PROP_0,
PROP_URI,
PROP_LAST
};
static const gchar *factory_key = "GstRTSPMediaFactoryURI";
GST_DEBUG_CATEGORY (rtsp_media_factory_uri_debug);
#define GST_CAT_DEFAULT rtsp_media_factory_uri_debug
static void gst_rtsp_media_factory_uri_get_property (GObject * object,
guint propid, GValue * value, GParamSpec * pspec);
static void gst_rtsp_media_factory_uri_set_property (GObject * object,
guint propid, const GValue * value, GParamSpec * pspec);
static void gst_rtsp_media_factory_uri_finalize (GObject * obj);
static GstElement *rtsp_media_factory_uri_get_element (GstRTSPMediaFactory *
factory, const GstRTSPUrl * url);
G_DEFINE_TYPE (GstRTSPMediaFactoryURI, gst_rtsp_media_factory_uri,
GST_TYPE_RTSP_MEDIA_FACTORY);
static void
gst_rtsp_media_factory_uri_class_init (GstRTSPMediaFactoryURIClass * klass)
{
GObjectClass *gobject_class;
GstRTSPMediaFactoryClass *mediafactory_class;
gobject_class = G_OBJECT_CLASS (klass);
mediafactory_class = GST_RTSP_MEDIA_FACTORY_CLASS (klass);
gobject_class->get_property = gst_rtsp_media_factory_uri_get_property;
gobject_class->set_property = gst_rtsp_media_factory_uri_set_property;
gobject_class->finalize = gst_rtsp_media_factory_uri_finalize;
/**
* GstRTSPMediaFactoryURI::uri
*
* The uri of the resource that will be served by this factory.
*/
g_object_class_install_property (gobject_class, PROP_URI,
g_param_spec_string ("uri", "URI",
"The URI of the resource to stream", DEFAULT_URI,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
mediafactory_class->get_element = rtsp_media_factory_uri_get_element;
GST_DEBUG_CATEGORY_INIT (rtsp_media_factory_uri_debug, "rtspmediafactoryuri",
0, "GstRTSPMediaFactoryUri");
}
static void
gst_rtsp_media_factory_uri_init (GstRTSPMediaFactoryURI * factory)
{
factory->uri = g_strdup (DEFAULT_URI);
factory->factories =
gst_element_factory_list_get_elements (GST_ELEMENT_FACTORY_TYPE_PAYLOADER,
GST_RANK_NONE);
}
static void
gst_rtsp_media_factory_uri_finalize (GObject * obj)
{
GstRTSPMediaFactoryURI *factory = GST_RTSP_MEDIA_FACTORY_URI (obj);
g_free (factory->uri);
gst_plugin_feature_list_free (factory->factories);
G_OBJECT_CLASS (gst_rtsp_media_factory_uri_parent_class)->finalize (obj);
}
static void
gst_rtsp_media_factory_uri_get_property (GObject * object, guint propid,
GValue * value, GParamSpec * pspec)
{
GstRTSPMediaFactoryURI *factory = GST_RTSP_MEDIA_FACTORY_URI (object);
switch (propid) {
case PROP_URI:
g_value_take_string (value, gst_rtsp_media_factory_uri_get_uri (factory));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, propid, pspec);
}
}
static void
gst_rtsp_media_factory_uri_set_property (GObject * object, guint propid,
const GValue * value, GParamSpec * pspec)
{
GstRTSPMediaFactoryURI *factory = GST_RTSP_MEDIA_FACTORY_URI (object);
switch (propid) {
case PROP_URI:
gst_rtsp_media_factory_uri_set_uri (factory, g_value_get_string (value));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, propid, pspec);
}
}
/**
* gst_rtsp_media_factory_uri_new:
*
* Create a new #GstRTSPMediaFactoryURI instance.
*
* Returns: a new #GstRTSPMediaFactoryURI object.
*/
GstRTSPMediaFactoryURI *
gst_rtsp_media_factory_uri_new (void)
{
GstRTSPMediaFactoryURI *result;
result = g_object_new (GST_TYPE_RTSP_MEDIA_FACTORY_URI, NULL);
return result;
}
/**
* gst_rtsp_media_factory_uri_set_uri:
* @factory: a #GstRTSPMediaFactory
* @uri: the uri the stream
*
* Set the URI of the resource that will be streamed by this factory.
*/
void
gst_rtsp_media_factory_uri_set_uri (GstRTSPMediaFactoryURI * factory,
const gchar * uri)
{
g_return_if_fail (GST_IS_RTSP_MEDIA_FACTORY_URI (factory));
g_return_if_fail (uri != NULL);
GST_RTSP_MEDIA_FACTORY_LOCK (factory);
g_free (factory->uri);
factory->uri = g_strdup (uri);
GST_RTSP_MEDIA_FACTORY_UNLOCK (factory);
}
/**
* gst_rtsp_media_factory_uri_get_uri:
* @factory: a #GstRTSPMediaFactory
*
* Get the URI that will provide media for this factory.
*
* Returns: the configured URI. g_free() after usage.
*/
gchar *
gst_rtsp_media_factory_uri_get_uri (GstRTSPMediaFactoryURI * factory)
{
gchar *result;
g_return_val_if_fail (GST_IS_RTSP_MEDIA_FACTORY_URI (factory), NULL);
GST_RTSP_MEDIA_FACTORY_LOCK (factory);
result = g_strdup (factory->uri);
GST_RTSP_MEDIA_FACTORY_UNLOCK (factory);
return result;
}
static GstElementFactory *
find_payloader (GstRTSPMediaFactoryURI * urifact, GstCaps * caps)
{
GList *list, *tmp;
GstElementFactory *factory = NULL;
/* find payloader that can link */
list = gst_element_factory_list_filter (urifact->factories, caps,
GST_PAD_SINK, FALSE);
for (tmp = list; tmp; tmp = g_list_next (tmp)) {
GstElementFactory *f = GST_ELEMENT_FACTORY_CAST (tmp->data);
const gchar *name;
name = gst_plugin_feature_get_name (GST_PLUGIN_FEATURE (f));
if (strcmp (name, "gdppay") == 0)
continue;
factory = f;
break;
}
if (factory)
g_object_ref (factory);
gst_plugin_feature_list_free (list);
return factory;
}
static gboolean
autoplug_continue_cb (GstElement * uribin, GstPad * pad, GstCaps * caps,
GstElement * element)
{
GList *list, *tmp;
GstRTSPMediaFactoryURI *urifact;
GstElementFactory *factory;
gboolean res;
GST_DEBUG ("found pad %s:%s of caps %" GST_PTR_FORMAT,
GST_DEBUG_PAD_NAME (pad), caps);
urifact = g_object_get_data (G_OBJECT (element), factory_key);
if (!(factory = find_payloader (urifact, caps)))
goto no_factory;
/* we found a payloader, stop autoplugging */
GST_DEBUG ("found payloader factory %s",
gst_plugin_feature_get_name (GST_PLUGIN_FEATURE (factory)));
gst_object_unref (factory);
return FALSE;
/* ERRORS */
no_factory:
{
/* no payloader, continue autoplugging */
GST_DEBUG ("no payloader found");
return TRUE;
}
}
static void
pad_added_cb (GstElement * uribin, GstPad * pad, GstElement * element)
{
GstRTSPMediaFactoryURI *urifact;
GstElementFactory *factory;
GstElement *payloader;
GstCaps *caps;
GstPad *sinkpad, *srcpad, *ghostpad;
GST_DEBUG ("added pad %s:%s", GST_DEBUG_PAD_NAME (pad));
/* link the element now and expose the pad */
urifact = g_object_get_data (G_OBJECT (element), factory_key);
caps = gst_pad_get_caps (pad);
if (caps == NULL)
goto no_caps;
if (!(factory = find_payloader (urifact, caps)))
goto no_factory;
gst_caps_unref (caps);
/* we have a payloader now */
GST_DEBUG ("found payloader factory %s",
gst_plugin_feature_get_name (GST_PLUGIN_FEATURE (factory)));
payloader = gst_element_factory_create (factory, NULL);
if (payloader == NULL)
goto no_payloader;
/* add the payloader to the pipeline */
gst_bin_add (GST_BIN_CAST (element), payloader);
gst_element_set_state (payloader, GST_STATE_PLAYING);
/* link the pad to the sinkpad of the payloader */
sinkpad = gst_element_get_static_pad (payloader, "sink");
gst_pad_link (pad, sinkpad);
gst_object_unref (sinkpad);
/* now expose the srcpad of the payloader as a ghostpad with the same name
* as the uridecodebin pad name. */
srcpad = gst_element_get_static_pad (payloader, "src");
ghostpad = gst_ghost_pad_new (GST_PAD_NAME (pad), srcpad);
gst_object_unref (srcpad);
gst_pad_set_active (ghostpad, TRUE);
gst_element_add_pad (element, ghostpad);
return;
/* ERRORS */
no_caps:
{
GST_WARNING ("could not get caps from pad");
return;
}
no_factory:
{
GST_DEBUG ("no payloader found");
gst_caps_unref (caps);
return;
}
no_payloader:
{
GST_ERROR ("could not create payloader from factory");
gst_caps_unref (caps);
return;
}
}
static void
no_more_pads_cb (GstElement * uribin, GstElement * element)
{
GST_DEBUG ("no-more-pads");
gst_element_no_more_pads (element);
}
static GstElement *
rtsp_media_factory_uri_get_element (GstRTSPMediaFactory * factory,
const GstRTSPUrl * url)
{
GstElement *topbin, *element, *uribin;
GstRTSPMediaFactoryURI *urifact;
urifact = GST_RTSP_MEDIA_FACTORY_URI_CAST (factory);
GST_LOG ("creating element");
topbin = gst_bin_new ("GstRTSPMediaFactoryURI");
g_assert (topbin != NULL);
/* our bin will dynamically expose payloaded pads */
element = gst_bin_new ("dynpay0");
g_assert (element != NULL);
uribin = gst_element_factory_make ("uridecodebin", "uribin");
if (uribin == NULL)
goto no_uridecodebin;
g_object_set (uribin, "uri", urifact->uri, NULL);
/* keep factory around */
g_object_set_data_full (G_OBJECT (element), factory_key,
g_object_ref (factory), g_object_unref);
/* connect to the signals */
g_signal_connect (uribin, "autoplug-continue",
(GCallback) autoplug_continue_cb, element);
g_signal_connect (uribin, "pad-added", (GCallback) pad_added_cb, element);
g_signal_connect (uribin, "no-more-pads", (GCallback) no_more_pads_cb,
element);
gst_bin_add (GST_BIN_CAST (element), uribin);
gst_bin_add (GST_BIN_CAST (topbin), element);
return topbin;
no_uridecodebin:
{
g_critical ("can't create uridecodebin element");
g_object_unref (element);
return NULL;
}
}

76
gst/rtsp-server/rtsp-media-factory-uri.h Normal file
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@ -0,0 +1,76 @@
/* GStreamer
* Copyright (C) 2008 Wim Taymans <wim.taymans at 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., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include <gst/gst.h>
#include "rtsp-media-factory.h"
#ifndef __GST_RTSP_MEDIA_FACTORY_URI_H__
#define __GST_RTSP_MEDIA_FACTORY_URI_H__
G_BEGIN_DECLS
/* types for the media factory */
#define GST_TYPE_RTSP_MEDIA_FACTORY_URI (gst_rtsp_media_factory_uri_get_type ())
#define GST_IS_RTSP_MEDIA_FACTORY_URI(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_RTSP_MEDIA_FACTORY_URI))
#define GST_IS_RTSP_MEDIA_FACTORY_URI_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_RTSP_MEDIA_FACTORY_URI))
#define GST_RTSP_MEDIA_FACTORY_URI_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_RTSP_MEDIA_FACTORY_URI, GstRTSPMediaFactoryURIClass))
#define GST_RTSP_MEDIA_FACTORY_URI(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_RTSP_MEDIA_FACTORY_URI, GstRTSPMediaFactoryURI))
#define GST_RTSP_MEDIA_FACTORY_URI_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_RTSP_MEDIA_FACTORY_URI, GstRTSPMediaFactoryURIClass))
#define GST_RTSP_MEDIA_FACTORY_URI_CAST(obj) ((GstRTSPMediaFactoryURI*)(obj))
#define GST_RTSP_MEDIA_FACTORY_URI_CLASS_CAST(klass) ((GstRTSPMediaFactoryURIClass*)(klass))
typedef struct _GstRTSPMediaFactoryURI GstRTSPMediaFactoryURI;
typedef struct _GstRTSPMediaFactoryURIClass GstRTSPMediaFactoryURIClass;
/**
* GstRTSPMediaFactoryURI:
* @uri: the uri
*
* A media factory that creates a pipeline to play and uri.
*/
struct _GstRTSPMediaFactoryURI {
GstRTSPMediaFactory parent;
gchar *uri;
GList *factories;
};
/**
* GstRTSPMediaFactoryURIClass:
*
* The #GstRTSPMediaFactoryURI class structure.
*/
struct _GstRTSPMediaFactoryURIClass {
GstRTSPMediaFactoryClass parent_class;
};
GType gst_rtsp_media_factory_uri_get_type (void);
/* creating the factory */
GstRTSPMediaFactoryURI * gst_rtsp_media_factory_uri_new (void);
/* configuring the factory */
void gst_rtsp_media_factory_uri_set_uri (GstRTSPMediaFactoryURI *factory,
const gchar *uri);
gchar * gst_rtsp_media_factory_uri_get_uri (GstRTSPMediaFactoryURI *factory);
G_END_DECLS
#endif /* __GST_RTSP_MEDIA_FACTORY_URI_H__ */

1
gst/rtsp-server/rtsp-server.h
View file

@ -35,6 +35,7 @@
#include "rtsp-session-pool.h"
#include "rtsp-media-mapping.h"
#include "rtsp-media-factory-uri.h"
#include "rtsp-client.h"
#ifndef __GST_RTSP_SERVER_H__