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Original commit message from CVS: * gst/rtsp/gstrtspext.c: (gst_rtsp_ext_list_free), (gst_rtsp_ext_list_connect): * gst/rtsp/gstrtspext.h: * gst/rtsp/gstrtspsrc.c: (gst_rtspsrc_init), (gst_rtspsrc_finalize), (gst_rtspsrc_send_cb): Clean up the interface list. Allow connecting to interface signals for the extensions. Remove old extension code. Free list on cleanup. Allow extensions to send additional RTSP messages.
249 lines
7.1 KiB
C
249 lines
7.1 KiB
C
/* GStreamer
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* Copyright (C) <2006> Wim Taymans <wim@fluendo.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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/*
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* Unless otherwise indicated, Source Code is licensed under MIT license.
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* See further explanation attached in License Statement (distributed in the file
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* LICENSE).
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy of
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* this software and associated documentation files (the "Software"), to deal in
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* the Software without restriction, including without limitation the rights to
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* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
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* of the Software, and to permit persons to whom the Software is furnished to do
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* so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#include "gstrtspext.h"
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GST_DEBUG_CATEGORY_STATIC (rtspext_debug);
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#define GST_CAT_DEFAULT (rtspext_debug)
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static GList *extensions;
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static gboolean
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gst_rtsp_ext_list_filter (GstPluginFeature * feature, gpointer user_data)
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{
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GstElementFactory *factory;
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guint rank;
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/* we only care about element factories */
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if (!GST_IS_ELEMENT_FACTORY (feature))
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return FALSE;
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factory = GST_ELEMENT_FACTORY (feature);
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if (!gst_element_factory_has_interface (factory, "GstRTSPExtension"))
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return FALSE;
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/* only select elements with autoplugging rank */
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rank = gst_plugin_feature_get_rank (feature);
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if (rank < GST_RANK_MARGINAL)
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return FALSE;
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return TRUE;
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}
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void
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gst_rtsp_ext_list_init (void)
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{
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GST_DEBUG_CATEGORY_INIT (rtspext_debug, "rtspext", 0, "RTSP extension");
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/* get a list of all extensions */
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extensions = gst_registry_feature_filter (gst_registry_get_default (),
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(GstPluginFeatureFilter) gst_rtsp_ext_list_filter, FALSE, NULL);
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}
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GstRTSPExtensionList *
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gst_rtsp_ext_list_get (void)
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{
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GstRTSPExtensionList *result;
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GList *walk;
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result = g_new0 (GstRTSPExtensionList, 1);
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for (walk = extensions; walk; walk = g_list_next (walk)) {
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GstElementFactory *factory = GST_ELEMENT_FACTORY (walk->data);
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GstElement *element;
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element = gst_element_factory_create (factory, NULL);
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if (!element) {
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GST_ERROR ("could not create extension instance");
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continue;
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}
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GST_DEBUG ("added extension interface for '%s'",
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GST_ELEMENT_NAME (element));
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result->extensions = g_list_prepend (result->extensions, element);
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}
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return result;
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}
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void
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gst_rtsp_ext_list_free (GstRTSPExtensionList * ext)
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{
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GList *walk;
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for (walk = ext->extensions; walk; walk = g_list_next (walk)) {
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GstRTSPExtension *elem = (GstRTSPExtension *) walk->data;
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gst_object_unref (GST_OBJECT_CAST (elem));
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}
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g_list_free (ext->extensions);
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g_free (ext);
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}
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gboolean
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gst_rtsp_ext_list_detect_server (GstRTSPExtensionList * ext,
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GstRTSPMessage * resp)
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{
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GList *walk;
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gboolean res = TRUE;
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for (walk = ext->extensions; walk; walk = g_list_next (walk)) {
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GstRTSPExtension *elem = (GstRTSPExtension *) walk->data;
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res = gst_rtsp_extension_detect_server (elem, resp);
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}
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return res;
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}
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GstRTSPResult
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gst_rtsp_ext_list_before_send (GstRTSPExtensionList * ext, GstRTSPMessage * req)
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{
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GList *walk;
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GstRTSPResult res = GST_RTSP_OK;
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for (walk = ext->extensions; walk; walk = g_list_next (walk)) {
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GstRTSPExtension *elem = (GstRTSPExtension *) walk->data;
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res = gst_rtsp_extension_before_send (elem, req);
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}
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return res;
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}
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GstRTSPResult
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gst_rtsp_ext_list_after_send (GstRTSPExtensionList * ext, GstRTSPMessage * req,
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GstRTSPMessage * resp)
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{
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GList *walk;
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GstRTSPResult res = GST_RTSP_OK;
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for (walk = ext->extensions; walk; walk = g_list_next (walk)) {
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GstRTSPExtension *elem = (GstRTSPExtension *) walk->data;
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res = gst_rtsp_extension_after_send (elem, req, resp);
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}
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return res;
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}
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GstRTSPResult
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gst_rtsp_ext_list_parse_sdp (GstRTSPExtensionList * ext, GstSDPMessage * sdp,
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GstStructure * s)
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{
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GList *walk;
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GstRTSPResult res = GST_RTSP_OK;
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for (walk = ext->extensions; walk; walk = g_list_next (walk)) {
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GstRTSPExtension *elem = (GstRTSPExtension *) walk->data;
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res = gst_rtsp_extension_parse_sdp (elem, sdp, s);
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}
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return res;
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}
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GstRTSPResult
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gst_rtsp_ext_list_setup_media (GstRTSPExtensionList * ext, GstSDPMedia * media)
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{
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GList *walk;
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GstRTSPResult res = GST_RTSP_OK;
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for (walk = ext->extensions; walk; walk = g_list_next (walk)) {
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GstRTSPExtension *elem = (GstRTSPExtension *) walk->data;
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res = gst_rtsp_extension_setup_media (elem, media);
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}
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return res;
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}
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gboolean
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gst_rtsp_ext_list_configure_stream (GstRTSPExtensionList * ext, GstCaps * caps)
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{
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GList *walk;
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gboolean res = TRUE;
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for (walk = ext->extensions; walk; walk = g_list_next (walk)) {
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GstRTSPExtension *elem = (GstRTSPExtension *) walk->data;
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res = gst_rtsp_extension_configure_stream (elem, caps);
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}
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return res;
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}
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GstRTSPResult
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gst_rtsp_ext_list_get_transports (GstRTSPExtensionList * ext,
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GstRTSPLowerTrans protocols, gchar ** transport)
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{
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GList *walk;
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GstRTSPResult res = GST_RTSP_OK;
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for (walk = ext->extensions; walk; walk = g_list_next (walk)) {
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GstRTSPExtension *elem = (GstRTSPExtension *) walk->data;
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res = gst_rtsp_extension_get_transports (elem, protocols, transport);
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}
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return res;
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}
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GstRTSPResult
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gst_rtsp_ext_list_stream_select (GstRTSPExtensionList * ext, GstRTSPUrl * url)
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{
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GList *walk;
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GstRTSPResult res = GST_RTSP_OK;
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for (walk = ext->extensions; walk; walk = g_list_next (walk)) {
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GstRTSPExtension *elem = (GstRTSPExtension *) walk->data;
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res = gst_rtsp_extension_stream_select (elem, url);
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}
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return res;
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}
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void
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gst_rtsp_ext_list_connect (GstRTSPExtensionList * ext,
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const gchar * detailed_signal, GCallback c_handler, gpointer data)
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{
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GList *walk;
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for (walk = ext->extensions; walk; walk = g_list_next (walk)) {
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GstRTSPExtension *elem = (GstRTSPExtension *) walk->data;
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g_signal_connect (elem, detailed_signal, c_handler, data);
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}
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}
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