gstreamer/gst/rtsp/rtspextwms.c

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/* 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., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, 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 <string.h>
#include "gstrtspsrc.h"
#include "rtspextwms.h"
#define SERVER_PREFIX "WMServer/"
#define HEADER_PREFIX "data:application/vnd.ms.wms-hdr.asfv1;base64,"
typedef struct _RTSPExtWMSCtx RTSPExtWMSCtx;
struct _RTSPExtWMSCtx
{
RTSPExtensionCtx ctx;
gboolean active;
};
static RTSPResult
rtsp_ext_wms_before_send (RTSPExtensionCtx * ctx, RTSPMessage * request)
{
RTSPExtWMSCtx *rext = (RTSPExtWMSCtx *) ctx;
switch (request->type_data.request.method) {
case RTSP_OPTIONS:
{
/* activate ourselves with the first request */
rext->active = TRUE;
break;
}
default:
break;
}
return RTSP_OK;
}
static RTSPResult
rtsp_ext_wms_after_send (RTSPExtensionCtx * ctx, RTSPMessage * req,
RTSPMessage * resp)
{
RTSPExtWMSCtx *rext = (RTSPExtWMSCtx *) ctx;
switch (req->type_data.request.method) {
case RTSP_OPTIONS:
{
gchar *server = NULL;
rtsp_message_get_header (resp, RTSP_HDR_SERVER, &server);
if (g_str_has_prefix (server, SERVER_PREFIX))
rext->active = TRUE;
else
rext->active = FALSE;
break;
}
default:
break;
}
return RTSP_OK;
}
static RTSPResult
rtsp_ext_wms_parse_sdp (RTSPExtensionCtx * ctx, SDPMessage * sdp)
{
GstRTSPSrc *src = (GstRTSPSrc *) ctx->src;
RTSPExtWMSCtx *rext = (RTSPExtWMSCtx *) ctx;
gchar *config, *maxps;
gint i;
if (!rext->active)
return RTSP_OK;
for (i = 0; (config = sdp_message_get_attribute_val_n (sdp, "pgmpu", i)); i++) {
if (g_str_has_prefix (config, HEADER_PREFIX)) {
config += strlen (HEADER_PREFIX);
gst_structure_set (src->props, "config", G_TYPE_STRING, config, NULL);
break;
}
}
if (config == NULL)
goto no_config;
gst_structure_set (src->props, "config", G_TYPE_STRING, config, NULL);
maxps = sdp_message_get_attribute_val (sdp, "maxps");
if (maxps)
gst_structure_set (src->props, "maxps", G_TYPE_STRING, maxps, NULL);
gst_structure_set (src->props, "encoding-name", G_TYPE_STRING, "x-asf-pf",
NULL);
gst_structure_set (src->props, "media", G_TYPE_STRING, "application", NULL);
return RTSP_OK;
/* ERRORS */
no_config:
{
GST_DEBUG_OBJECT (src, "Could not find config SDP field, deactivating.");
rext->active = FALSE;
return RTSP_OK;
}
}
RTSPExtensionCtx *
rtsp_ext_wms_get_context (void)
{
RTSPExtWMSCtx *res;
res = g_new0 (RTSPExtWMSCtx, 1);
res->ctx.parse_sdp = rtsp_ext_wms_parse_sdp;
res->ctx.before_send = rtsp_ext_wms_before_send;
res->ctx.after_send = rtsp_ext_wms_after_send;
return (RTSPExtensionCtx *) res;
}