mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-09-08 13:18:52 +00:00
268 lines
7.5 KiB
C
268 lines
7.5 KiB
C
/* GStreamer
|
|
* Copyright (C) <2006> Wim Taymans <wim@fluendo.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.
|
|
*/
|
|
/*
|
|
* Unless otherwise indicated, Source Code is licensed under MIT license.
|
|
* See further explanation attached in License Statement (distributed in the file
|
|
* LICENSE).
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a copy of
|
|
* this software and associated documentation files (the "Software"), to deal in
|
|
* the Software without restriction, including without limitation the rights to
|
|
* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
|
|
* of the Software, and to permit persons to whom the Software is furnished to do
|
|
* so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be included in all
|
|
* copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
|
* SOFTWARE.
|
|
*/
|
|
|
|
#include "gstrtspext.h"
|
|
|
|
GST_DEBUG_CATEGORY_STATIC (rtspext_debug);
|
|
#define GST_CAT_DEFAULT (rtspext_debug)
|
|
|
|
static GList *extensions;
|
|
|
|
static gboolean
|
|
gst_rtsp_ext_list_filter (GstPluginFeature * feature, gpointer user_data)
|
|
{
|
|
GstElementFactory *factory;
|
|
guint rank;
|
|
|
|
/* we only care about element factories */
|
|
if (!GST_IS_ELEMENT_FACTORY (feature))
|
|
return FALSE;
|
|
|
|
factory = GST_ELEMENT_FACTORY (feature);
|
|
|
|
if (!gst_element_factory_has_interface (factory, "GstRTSPExtension"))
|
|
return FALSE;
|
|
|
|
/* only select elements with autoplugging rank */
|
|
rank = gst_plugin_feature_get_rank (feature);
|
|
if (rank < GST_RANK_MARGINAL)
|
|
return FALSE;
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
void
|
|
gst_rtsp_ext_list_init (void)
|
|
{
|
|
GST_DEBUG_CATEGORY_INIT (rtspext_debug, "rtspext", 0, "RTSP extension");
|
|
|
|
/* get a list of all extensions */
|
|
extensions = gst_registry_feature_filter (gst_registry_get (),
|
|
(GstPluginFeatureFilter) gst_rtsp_ext_list_filter, FALSE, NULL);
|
|
}
|
|
|
|
GstRTSPExtensionList *
|
|
gst_rtsp_ext_list_get (void)
|
|
{
|
|
GstRTSPExtensionList *result;
|
|
GList *walk;
|
|
|
|
result = g_new0 (GstRTSPExtensionList, 1);
|
|
|
|
for (walk = extensions; walk; walk = g_list_next (walk)) {
|
|
GstElementFactory *factory = GST_ELEMENT_FACTORY (walk->data);
|
|
GstElement *element;
|
|
|
|
element = gst_element_factory_create (factory, NULL);
|
|
if (!element) {
|
|
GST_ERROR ("could not create extension instance");
|
|
continue;
|
|
}
|
|
|
|
GST_DEBUG ("added extension interface for '%s'",
|
|
GST_ELEMENT_NAME (element));
|
|
result->extensions = g_list_prepend (result->extensions, element);
|
|
}
|
|
return result;
|
|
}
|
|
|
|
void
|
|
gst_rtsp_ext_list_free (GstRTSPExtensionList * ext)
|
|
{
|
|
GList *walk;
|
|
|
|
for (walk = ext->extensions; walk; walk = g_list_next (walk)) {
|
|
GstRTSPExtension *elem = (GstRTSPExtension *) walk->data;
|
|
|
|
gst_object_unref (GST_OBJECT_CAST (elem));
|
|
}
|
|
g_list_free (ext->extensions);
|
|
g_free (ext);
|
|
}
|
|
|
|
gboolean
|
|
gst_rtsp_ext_list_detect_server (GstRTSPExtensionList * ext,
|
|
GstRTSPMessage * resp)
|
|
{
|
|
GList *walk;
|
|
gboolean res = TRUE;
|
|
|
|
for (walk = ext->extensions; walk; walk = g_list_next (walk)) {
|
|
GstRTSPExtension *elem = (GstRTSPExtension *) walk->data;
|
|
|
|
res = gst_rtsp_extension_detect_server (elem, resp);
|
|
}
|
|
return res;
|
|
}
|
|
|
|
GstRTSPResult
|
|
gst_rtsp_ext_list_before_send (GstRTSPExtensionList * ext, GstRTSPMessage * req)
|
|
{
|
|
GList *walk;
|
|
GstRTSPResult res = GST_RTSP_OK;
|
|
|
|
for (walk = ext->extensions; walk; walk = g_list_next (walk)) {
|
|
GstRTSPExtension *elem = (GstRTSPExtension *) walk->data;
|
|
|
|
res = gst_rtsp_extension_before_send (elem, req);
|
|
}
|
|
return res;
|
|
}
|
|
|
|
GstRTSPResult
|
|
gst_rtsp_ext_list_after_send (GstRTSPExtensionList * ext, GstRTSPMessage * req,
|
|
GstRTSPMessage * resp)
|
|
{
|
|
GList *walk;
|
|
GstRTSPResult res = GST_RTSP_OK;
|
|
|
|
for (walk = ext->extensions; walk; walk = g_list_next (walk)) {
|
|
GstRTSPExtension *elem = (GstRTSPExtension *) walk->data;
|
|
|
|
res = gst_rtsp_extension_after_send (elem, req, resp);
|
|
}
|
|
return res;
|
|
}
|
|
|
|
GstRTSPResult
|
|
gst_rtsp_ext_list_parse_sdp (GstRTSPExtensionList * ext, GstSDPMessage * sdp,
|
|
GstStructure * s)
|
|
{
|
|
GList *walk;
|
|
GstRTSPResult res = GST_RTSP_OK;
|
|
|
|
for (walk = ext->extensions; walk; walk = g_list_next (walk)) {
|
|
GstRTSPExtension *elem = (GstRTSPExtension *) walk->data;
|
|
|
|
res = gst_rtsp_extension_parse_sdp (elem, sdp, s);
|
|
}
|
|
return res;
|
|
}
|
|
|
|
GstRTSPResult
|
|
gst_rtsp_ext_list_setup_media (GstRTSPExtensionList * ext, GstSDPMedia * media)
|
|
{
|
|
GList *walk;
|
|
GstRTSPResult res = GST_RTSP_OK;
|
|
|
|
for (walk = ext->extensions; walk; walk = g_list_next (walk)) {
|
|
GstRTSPExtension *elem = (GstRTSPExtension *) walk->data;
|
|
|
|
res = gst_rtsp_extension_setup_media (elem, media);
|
|
}
|
|
return res;
|
|
}
|
|
|
|
gboolean
|
|
gst_rtsp_ext_list_configure_stream (GstRTSPExtensionList * ext, GstCaps * caps)
|
|
{
|
|
GList *walk;
|
|
gboolean res = TRUE;
|
|
|
|
for (walk = ext->extensions; walk; walk = g_list_next (walk)) {
|
|
GstRTSPExtension *elem = (GstRTSPExtension *) walk->data;
|
|
|
|
res = gst_rtsp_extension_configure_stream (elem, caps);
|
|
if (!res)
|
|
break;
|
|
}
|
|
return res;
|
|
}
|
|
|
|
GstRTSPResult
|
|
gst_rtsp_ext_list_get_transports (GstRTSPExtensionList * ext,
|
|
GstRTSPLowerTrans protocols, gchar ** transport)
|
|
{
|
|
GList *walk;
|
|
GstRTSPResult res = GST_RTSP_OK;
|
|
|
|
for (walk = ext->extensions; walk; walk = g_list_next (walk)) {
|
|
GstRTSPExtension *elem = (GstRTSPExtension *) walk->data;
|
|
|
|
res = gst_rtsp_extension_get_transports (elem, protocols, transport);
|
|
}
|
|
return res;
|
|
}
|
|
|
|
GstRTSPResult
|
|
gst_rtsp_ext_list_stream_select (GstRTSPExtensionList * ext, GstRTSPUrl * url)
|
|
{
|
|
GList *walk;
|
|
GstRTSPResult res = GST_RTSP_OK;
|
|
|
|
for (walk = ext->extensions; walk; walk = g_list_next (walk)) {
|
|
GstRTSPExtension *elem = (GstRTSPExtension *) walk->data;
|
|
|
|
res = gst_rtsp_extension_stream_select (elem, url);
|
|
}
|
|
return res;
|
|
}
|
|
|
|
void
|
|
gst_rtsp_ext_list_connect (GstRTSPExtensionList * ext,
|
|
const gchar * detailed_signal, GCallback c_handler, gpointer data)
|
|
{
|
|
GList *walk;
|
|
|
|
for (walk = ext->extensions; walk; walk = g_list_next (walk)) {
|
|
GstRTSPExtension *elem = (GstRTSPExtension *) walk->data;
|
|
|
|
g_signal_connect (elem, detailed_signal, c_handler, data);
|
|
}
|
|
}
|
|
|
|
GstRTSPResult
|
|
gst_rtsp_ext_list_receive_request (GstRTSPExtensionList * ext,
|
|
GstRTSPMessage * req)
|
|
{
|
|
GList *walk;
|
|
GstRTSPResult res = GST_RTSP_ENOTIMPL;
|
|
|
|
for (walk = ext->extensions; walk; walk = g_list_next (walk)) {
|
|
GstRTSPExtension *elem = (GstRTSPExtension *) walk->data;
|
|
|
|
res = gst_rtsp_extension_receive_request (elem, req);
|
|
if (res != GST_RTSP_ENOTIMPL)
|
|
break;
|
|
}
|
|
return res;
|
|
}
|