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/* GStreamer RTSP extension
* Copyright (C) 2007 Wim Taymans <wim.taymans@gmail.com>
*
* gstrtspextension.c: RTSP extension mechanism
*
* 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.
*/
/**
* SECTION:gstrtspextension
* @title: GstRTSPExtension
* @short_description: Interface for extending RTSP protocols
*
* This interface is implemented e.g. by the Windows Media Streaming RTSP
* exentension (rtspwms) and the RealMedia RTSP extension (rtspreal).
*
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "gstrtsp-enumtypes.h"
#include "gstrtspextension.h"
static void gst_rtsp_extension_iface_init (GstRTSPExtension * iface);
enum
{
SIGNAL_SEND,
LAST_SIGNAL
};
static guint gst_rtsp_extension_signals[LAST_SIGNAL] = { 0 };
GType
gst_rtsp_extension_get_type (void)
{
static volatile gsize gst_rtsp_extension_type = 0;
static const GTypeInfo gst_rtsp_extension_info = {
sizeof (GstRTSPExtensionInterface),
(GBaseInitFunc) gst_rtsp_extension_iface_init,
NULL,
NULL,
NULL,
NULL,
0,
0,
NULL,
};
if (g_once_init_enter (&gst_rtsp_extension_type)) {
GType tmp = g_type_register_static (G_TYPE_INTERFACE,
"GstRTSPExtension", &gst_rtsp_extension_info, 0);
g_once_init_leave (&gst_rtsp_extension_type, tmp);
}
return (GType) gst_rtsp_extension_type;
}
static void
gst_rtsp_extension_iface_init (GstRTSPExtension * iface)
{
static gboolean initialized = FALSE;
if (!initialized) {
gst_rtsp_extension_signals[SIGNAL_SEND] =
g_signal_new ("send", G_TYPE_FROM_CLASS (iface),
G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (GstRTSPExtensionInterface,
send), NULL, NULL, NULL, GST_TYPE_RTSP_RESULT, 2, G_TYPE_POINTER,
G_TYPE_POINTER);
initialized = TRUE;
}
}
gboolean
gst_rtsp_extension_detect_server (GstRTSPExtension * ext, GstRTSPMessage * resp)
{
GstRTSPExtensionInterface *iface;
gboolean res = TRUE;
iface = GST_RTSP_EXTENSION_GET_INTERFACE (ext);
if (iface->detect_server)
res = iface->detect_server (ext, resp);
return res;
}
GstRTSPResult
gst_rtsp_extension_before_send (GstRTSPExtension * ext, GstRTSPMessage * req)
{
GstRTSPExtensionInterface *iface;
GstRTSPResult res = GST_RTSP_OK;
iface = GST_RTSP_EXTENSION_GET_INTERFACE (ext);
if (iface->before_send)
res = iface->before_send (ext, req);
return res;
}
GstRTSPResult
gst_rtsp_extension_after_send (GstRTSPExtension * ext, GstRTSPMessage * req,
GstRTSPMessage * resp)
{
GstRTSPExtensionInterface *iface;
GstRTSPResult res = GST_RTSP_OK;
iface = GST_RTSP_EXTENSION_GET_INTERFACE (ext);
if (iface->after_send)
res = iface->after_send (ext, req, resp);
return res;
}
GstRTSPResult
gst_rtsp_extension_parse_sdp (GstRTSPExtension * ext, GstSDPMessage * sdp,
GstStructure * s)
{
GstRTSPExtensionInterface *iface;
GstRTSPResult res = GST_RTSP_OK;
iface = GST_RTSP_EXTENSION_GET_INTERFACE (ext);
if (iface->parse_sdp)
res = iface->parse_sdp (ext, sdp, s);
return res;
}
GstRTSPResult
gst_rtsp_extension_setup_media (GstRTSPExtension * ext, GstSDPMedia * media)
{
GstRTSPExtensionInterface *iface;
GstRTSPResult res = GST_RTSP_OK;
iface = GST_RTSP_EXTENSION_GET_INTERFACE (ext);
if (iface->setup_media)
res = iface->setup_media (ext, media);
return res;
}
gboolean
gst_rtsp_extension_configure_stream (GstRTSPExtension * ext, GstCaps * caps)
{
GstRTSPExtensionInterface *iface;
gboolean res = TRUE;
iface = GST_RTSP_EXTENSION_GET_INTERFACE (ext);
if (iface->configure_stream)
res = iface->configure_stream (ext, caps);
return res;
}
GstRTSPResult
gst_rtsp_extension_get_transports (GstRTSPExtension * ext,
GstRTSPLowerTrans protocols, gchar ** transport)
{
GstRTSPExtensionInterface *iface;
GstRTSPResult res = GST_RTSP_OK;
iface = GST_RTSP_EXTENSION_GET_INTERFACE (ext);
if (iface->get_transports)
res = iface->get_transports (ext, protocols, transport);
return res;
}
GstRTSPResult
gst_rtsp_extension_stream_select (GstRTSPExtension * ext, GstRTSPUrl * url)
{
GstRTSPExtensionInterface *iface;
GstRTSPResult res = GST_RTSP_OK;
iface = GST_RTSP_EXTENSION_GET_INTERFACE (ext);
if (iface->stream_select)
res = iface->stream_select (ext, url);
return res;
}
GstRTSPResult
gst_rtsp_extension_receive_request (GstRTSPExtension * ext,
GstRTSPMessage * msg)
{
GstRTSPExtensionInterface *iface;
GstRTSPResult res = GST_RTSP_ENOTIMPL;
iface = GST_RTSP_EXTENSION_GET_INTERFACE (ext);
if (iface->receive_request)
res = iface->receive_request (ext, msg);
return res;
}
GstRTSPResult
gst_rtsp_extension_send (GstRTSPExtension * ext, GstRTSPMessage * req,
GstRTSPMessage * resp)
{
GstRTSPResult res = GST_RTSP_OK;
g_signal_emit (ext, gst_rtsp_extension_signals[SIGNAL_SEND], 0,
req, resp, &res);
return res;
}
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