callbacks.c

/*
linphone
Copyright (C) 2010  Simon MORLAT (simon.morlat@free.fr)

This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.

This program 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 General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
*/


#include "sal/sal.h"

#include "linphonecore.h"
#include "private.h"
#include "mediastreamer2/mediastream.h"
#include "lpconfig.h"

// stat
#ifndef _WIN32
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#endif

static void register_failure(SalOp *op);

static int media_parameters_changed(LinphoneCall *call, SalMediaDescription *oldmd, SalMediaDescription *newmd) {
	int result=0;
	if (call->params->in_conference != call->current_params->in_conference) return SAL_MEDIA_DESCRIPTION_FORCE_STREAM_RECONSTRUCTION;
	if (call->up_bw != linphone_core_get_upload_bandwidth(call->core)) return SAL_MEDIA_DESCRIPTION_FORCE_STREAM_RECONSTRUCTION;
	if (call->localdesc_changed) ms_message("Local description has changed: %i", call->localdesc_changed);
	result = call->localdesc_changed | sal_media_description_equals(oldmd, newmd);
	return result;
}

void linphone_core_update_streams_destinations(LinphoneCore *lc, LinphoneCall *call, SalMediaDescription *old_md, SalMediaDescription *new_md) {
	SalStreamDescription *new_audiodesc = NULL;
	SalStreamDescription *new_videodesc = NULL;
	char *rtp_addr, *rtcp_addr;
	int i;

	for (i = 0; i < new_md->nb_streams; i++) {
		if (!sal_stream_description_active(&new_md->streams[i])) continue;
		if (new_md->streams[i].type == SalAudio) {
			new_audiodesc = &new_md->streams[i];
		} else if (new_md->streams[i].type == SalVideo) {
			new_videodesc = &new_md->streams[i];
		}
	}
	if (call->audiostream && new_audiodesc) {
		rtp_addr = (new_audiodesc->rtp_addr[0] != '\0') ? new_audiodesc->rtp_addr : new_md->addr;
		rtcp_addr = (new_audiodesc->rtcp_addr[0] != '\0') ? new_audiodesc->rtcp_addr : new_md->addr;
		ms_message("Change audio stream destination: RTP=%s:%d RTCP=%s:%d", rtp_addr, new_audiodesc->rtp_port, rtcp_addr, new_audiodesc->rtcp_port);
		rtp_session_set_remote_addr_full(call->audiostream->ms.sessions.rtp_session, rtp_addr, new_audiodesc->rtp_port, rtcp_addr, new_audiodesc->rtcp_port);
	}
#ifdef VIDEO_ENABLED
	if (call->videostream && new_videodesc) {
		rtp_addr = (new_videodesc->rtp_addr[0] != '\0') ? new_videodesc->rtp_addr : new_md->addr;
		rtcp_addr = (new_videodesc->rtcp_addr[0] != '\0') ? new_videodesc->rtcp_addr : new_md->addr;
		ms_message("Change video stream destination: RTP=%s:%d RTCP=%s:%d", rtp_addr, new_videodesc->rtp_port, rtcp_addr, new_videodesc->rtcp_port);