gstreamer/gst/rtsp/rtsptransport.c

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/* GStreamer
* Copyright (C) <2005> 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.
*/
#include <string.h>
#include <stdlib.h>
#include "rtsptransport.h"
RTSPResult
rtsp_transport_new (RTSPTransport ** transport)
{
RTSPTransport *trans;
if (transport == NULL)
return RTSP_EINVAL;
trans = g_new0 (RTSPTransport, 1);
*transport = trans;
return rtsp_transport_init (trans);
}
RTSPResult
rtsp_transport_init (RTSPTransport * transport)
{
g_free (transport->destination);
g_free (transport->source);
g_free (transport->ssrc);
memset (transport, 0, sizeof (RTSPTransport));
transport->trans = RTSP_TRANS_RTP;
transport->profile = RTSP_PROFILE_AVP;
transport->lower_transport = RTSP_LOWER_TRANS_UNKNOWN;
transport->mode_play = TRUE;
transport->mode_record = FALSE;
return RTSP_OK;
}
static void
parse_mode (RTSPTransport * transport, gchar * str)
{
transport->mode_play = (strstr (str, "\"PLAY\"") != NULL);
transport->mode_record = (strstr (str, "\"RECORD\"") != NULL);
}
static void
parse_range (RTSPTransport * transport, gchar * str, RTSPRange * range)
{
gchar *minus;
minus = strstr (str, "-");
if (minus) {
range->min = atoi (str);
range->max = atoi (minus + 1);
} else {
range->min = atoi (str);
range->max = -1;
}
}
RTSPResult
rtsp_transport_parse (gchar * str, RTSPTransport * transport)
{
gchar **split;
gint i;
if (str == NULL || transport == NULL)
return RTSP_EINVAL;
rtsp_transport_init (transport);
split = g_strsplit (str, ";", 0);
i = 0;
while (split[i]) {
if (g_str_has_prefix (split[i], "RTP/AVP/UDP")) {
transport->lower_transport = RTSP_LOWER_TRANS_UDP;
} else if (g_str_has_prefix (split[i], "RTP/AVP/TCP")) {
transport->lower_transport = RTSP_LOWER_TRANS_TCP;
} else if (g_str_has_prefix (split[i], "multicast")) {
transport->multicast = TRUE;
} else if (g_str_has_prefix (split[i], "unicast")) {
transport->multicast = FALSE;
} else if (g_str_has_prefix (split[i], "destination=")) {
transport->destination = g_strdup (split[i] + 12);
} else if (g_str_has_prefix (split[i], "source=")) {
transport->source = g_strdup (split[i] + 7);
} else if (g_str_has_prefix (split[i], "layers=")) {
transport->layers = atoi (split[i] + 7);
} else if (g_str_has_prefix (split[i], "mode=")) {
parse_mode (transport, split[i] + 5);
} else if (g_str_has_prefix (split[i], "append")) {
transport->append = TRUE;
} else if (g_str_has_prefix (split[i], "interleaved=")) {
parse_range (transport, split[i] + 12, &transport->interleaved);
} else if (g_str_has_prefix (split[i], "ttl=")) {
transport->ttl = atoi (split[i] + 4);
} else if (g_str_has_prefix (split[i], "port=")) {
parse_range (transport, split[i] + 5, &transport->port);
} else if (g_str_has_prefix (split[i], "client_port=")) {
parse_range (transport, split[i] + 12, &transport->client_port);
} else if (g_str_has_prefix (split[i], "server_port=")) {
parse_range (transport, split[i] + 12, &transport->server_port);
} else if (g_str_has_prefix (split[i], "ssrc=")) {
transport->ssrc = g_strdup (split[i] + 5);
} else {
/* unknown field... */
g_warning ("unknown transport field \"%s\"", split[i]);
}
i++;
}
g_strfreev (split);
return RTSP_OK;
}
RTSPResult
rtsp_transport_free (RTSPTransport * transport)
{
rtsp_transport_init (transport);
g_free (transport);
return RTSP_OK;
}