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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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219 lines
5.4 KiB
C
219 lines
5.4 KiB
C
/* GStreamer RTSP extension
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* Copyright (C) 2007 Wim Taymans <wim.taymans@gmail.com>
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*
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* gstrtspextension.c: RTSP extension mechanism
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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., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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/**
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* SECTION:gstrtspextension
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* @title: GstRTSPExtension
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* @short_description: Interface for extending RTSP protocols
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*
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* This interface is implemented e.g. by the Windows Media Streaming RTSP
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* exentension (rtspwms) and the RealMedia RTSP extension (rtspreal).
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*
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include "gstrtsp-enumtypes.h"
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#include "gstrtspextension.h"
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static void gst_rtsp_extension_iface_init (GstRTSPExtension * iface);
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enum
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{
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SIGNAL_SEND,
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LAST_SIGNAL
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};
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static guint gst_rtsp_extension_signals[LAST_SIGNAL] = { 0 };
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GType
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gst_rtsp_extension_get_type (void)
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{
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static gsize gst_rtsp_extension_type = 0;
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static const GTypeInfo gst_rtsp_extension_info = {
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sizeof (GstRTSPExtensionInterface),
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(GBaseInitFunc) gst_rtsp_extension_iface_init,
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NULL,
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NULL,
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NULL,
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NULL,
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0,
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0,
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NULL,
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};
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if (g_once_init_enter (&gst_rtsp_extension_type)) {
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GType tmp = g_type_register_static (G_TYPE_INTERFACE,
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"GstRTSPExtension", &gst_rtsp_extension_info, 0);
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g_once_init_leave (&gst_rtsp_extension_type, tmp);
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}
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return (GType) gst_rtsp_extension_type;
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}
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static void
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gst_rtsp_extension_iface_init (GstRTSPExtension * iface)
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{
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static gboolean initialized = FALSE;
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if (!initialized) {
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gst_rtsp_extension_signals[SIGNAL_SEND] =
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g_signal_new ("send", G_TYPE_FROM_CLASS (iface),
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G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (GstRTSPExtensionInterface,
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send), NULL, NULL, NULL, GST_TYPE_RTSP_RESULT, 2, G_TYPE_POINTER,
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G_TYPE_POINTER);
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initialized = TRUE;
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}
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}
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gboolean
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gst_rtsp_extension_detect_server (GstRTSPExtension * ext, GstRTSPMessage * resp)
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{
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GstRTSPExtensionInterface *iface;
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gboolean res = TRUE;
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iface = GST_RTSP_EXTENSION_GET_INTERFACE (ext);
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if (iface->detect_server)
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res = iface->detect_server (ext, resp);
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return res;
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}
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GstRTSPResult
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gst_rtsp_extension_before_send (GstRTSPExtension * ext, GstRTSPMessage * req)
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{
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GstRTSPExtensionInterface *iface;
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GstRTSPResult res = GST_RTSP_OK;
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iface = GST_RTSP_EXTENSION_GET_INTERFACE (ext);
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if (iface->before_send)
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res = iface->before_send (ext, req);
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return res;
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}
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GstRTSPResult
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gst_rtsp_extension_after_send (GstRTSPExtension * ext, GstRTSPMessage * req,
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GstRTSPMessage * resp)
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{
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GstRTSPExtensionInterface *iface;
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GstRTSPResult res = GST_RTSP_OK;
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iface = GST_RTSP_EXTENSION_GET_INTERFACE (ext);
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if (iface->after_send)
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res = iface->after_send (ext, req, resp);
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return res;
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}
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GstRTSPResult
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gst_rtsp_extension_parse_sdp (GstRTSPExtension * ext, GstSDPMessage * sdp,
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GstStructure * s)
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{
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GstRTSPExtensionInterface *iface;
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GstRTSPResult res = GST_RTSP_OK;
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iface = GST_RTSP_EXTENSION_GET_INTERFACE (ext);
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if (iface->parse_sdp)
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res = iface->parse_sdp (ext, sdp, s);
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return res;
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}
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GstRTSPResult
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gst_rtsp_extension_setup_media (GstRTSPExtension * ext, GstSDPMedia * media)
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{
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GstRTSPExtensionInterface *iface;
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GstRTSPResult res = GST_RTSP_OK;
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iface = GST_RTSP_EXTENSION_GET_INTERFACE (ext);
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if (iface->setup_media)
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res = iface->setup_media (ext, media);
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return res;
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}
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gboolean
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gst_rtsp_extension_configure_stream (GstRTSPExtension * ext, GstCaps * caps)
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{
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GstRTSPExtensionInterface *iface;
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gboolean res = TRUE;
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iface = GST_RTSP_EXTENSION_GET_INTERFACE (ext);
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if (iface->configure_stream)
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res = iface->configure_stream (ext, caps);
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return res;
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}
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GstRTSPResult
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gst_rtsp_extension_get_transports (GstRTSPExtension * ext,
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GstRTSPLowerTrans protocols, gchar ** transport)
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{
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GstRTSPExtensionInterface *iface;
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GstRTSPResult res = GST_RTSP_OK;
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iface = GST_RTSP_EXTENSION_GET_INTERFACE (ext);
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if (iface->get_transports)
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res = iface->get_transports (ext, protocols, transport);
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return res;
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}
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GstRTSPResult
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gst_rtsp_extension_stream_select (GstRTSPExtension * ext, GstRTSPUrl * url)
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{
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GstRTSPExtensionInterface *iface;
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GstRTSPResult res = GST_RTSP_OK;
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iface = GST_RTSP_EXTENSION_GET_INTERFACE (ext);
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if (iface->stream_select)
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res = iface->stream_select (ext, url);
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return res;
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}
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GstRTSPResult
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gst_rtsp_extension_receive_request (GstRTSPExtension * ext,
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GstRTSPMessage * msg)
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{
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GstRTSPExtensionInterface *iface;
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GstRTSPResult res = GST_RTSP_ENOTIMPL;
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iface = GST_RTSP_EXTENSION_GET_INTERFACE (ext);
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if (iface->receive_request)
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res = iface->receive_request (ext, msg);
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return res;
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}
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GstRTSPResult
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gst_rtsp_extension_send (GstRTSPExtension * ext, GstRTSPMessage * req,
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GstRTSPMessage * resp)
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{
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GstRTSPResult res = GST_RTSP_OK;
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g_signal_emit (ext, gst_rtsp_extension_signals[SIGNAL_SEND], 0,
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req, resp, &res);
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return res;
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}
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