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/*
* This file was ported to MPlayer from xine CVS rtsp_session.c,v 1.9 2003/02/11 16:20:40
*/
/*
* Copyright (C) 2000-2002 the xine project
*
* This file is part of xine, a free video player.
*
* xine 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.
*
* xine 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
*
*
* high level interface to rtsp servers.
*/
#include <sys/types.h>
#include "config.h"
#ifndef HAVE_WINSOCK2
#include <sys/socket.h>
#include <netinet/in.h>
#include <netdb.h>
#else
#include <winsock2.h>
#endif
#include <unistd.h>
#include <stdio.h>
#include <fcntl.h>
#include <stdlib.h>
#include <string.h>
#include "rtsp.h"
#include "rtsp_session.h"
#include "real.h"
#include "rmff.h"
#include "asmrp.h"
#include "xbuffer.h"
/*
#define LOG
*/
#define BUF_SIZE 4096
#define HEADER_SIZE 4096
struct rtsp_session_s {
rtsp_t *s;
/* receive buffer */
uint8_t *recv;
int recv_size;
int recv_read;
/* header buffer */
uint8_t header[HEADER_SIZE];
int header_len;
int header_read;
};
//rtsp_session_t *rtsp_session_start(char *mrl) {
rtsp_session_t *rtsp_session_start(int fd, char **mrl, char *path, char *host, int port, int *redir) {
rtsp_session_t *rtsp_session=malloc(sizeof(rtsp_session_t));
char *server;
char *mrl_line = NULL;
rmff_header_t *h;
uint32_t bandwidth=10485800;
rtsp_session->recv = xbuffer_init(BUF_SIZE);
//connect:
*redir = 0;
/* connect to server */
rtsp_session->s=rtsp_connect(fd,*mrl,path,host,port,NULL);
if (!rtsp_session->s)
{
printf("rtsp_session: failed to connect to server %s\n", path);
rtsp_session->recv = xbuffer_free(rtsp_session->recv);
free(rtsp_session);
return NULL;
}
/* looking for server type */
if (rtsp_search_answers(rtsp_session->s,"Server"))
server=strdup(rtsp_search_answers(rtsp_session->s,"Server"));
else {
if (rtsp_search_answers(rtsp_session->s,"RealChallenge1"))
server=strdup("Real");
else
server=strdup("unknown");
}
if (strstr(server,"Real") || strstr(server,"Helix"))
{
/* we are talking to a real server ... */
h=real_setup_and_get_header(rtsp_session->s, bandwidth);
if (!h) {
/* got an redirect? */
if (rtsp_search_answers(rtsp_session->s, "Location"))
{
free(mrl_line);
mrl_line=strdup(rtsp_search_answers(rtsp_session->s, "Location"));
printf("rtsp_session: redirected to %s\n", mrl_line);
rtsp_close(rtsp_session->s);
free(server);
free(*mrl);
free(rtsp_session);
/* tell the caller to redirect, return url to redirect to in mrl */
*mrl = mrl_line;
*redir = 1;
return NULL;
// goto connect; /* *shudder* i made a design mistake somewhere */
} else
{
printf("rtsp_session: session can not be established.\n");
rtsp_close(rtsp_session->s);
rtsp_session->recv = xbuffer_free(rtsp_session->recv);
free(rtsp_session);
return NULL;
}
}
rtsp_session->header_len=rmff_dump_header(h,rtsp_session->header,1024);
rtsp_session->recv = xbuffer_copyin(rtsp_session->recv, 0, rtsp_session->header, rtsp_session->header_len);
rtsp_session->recv_size = rtsp_session->header_len;
rtsp_session->recv_read = 0;
} else
{
printf("rtsp_session: Not a Real server. Server type is '%s'.\n",server);
rtsp_close(rtsp_session->s);
free(server);
rtsp_session->recv = xbuffer_free(rtsp_session->recv);
free(rtsp_session);
return NULL;
}
free(server);
return rtsp_session;
}
int rtsp_session_read (rtsp_session_t *this, char *data, int len) {
int to_copy=len;
char *dest=data;
char *source=this->recv + this->recv_read;
int fill=this->recv_size - this->recv_read;
if (len < 0) return 0;
while (to_copy > fill) {
memcpy(dest, source, fill);
to_copy -= fill;
dest += fill;
this->recv_read = 0;
this->recv_size = real_get_rdt_chunk (this->s, (char **)&(this->recv));
if (this->recv_size < 0)
return -1;
source = this->recv;
fill = this->recv_size;
if (this->recv_size == 0) {
#ifdef LOG
printf ("librtsp: %d of %d bytes provided\n", len-to_copy, len);
#endif
return len-to_copy;
}
}
memcpy(dest, source, to_copy);
this->recv_read += to_copy;
#ifdef LOG
printf ("librtsp: %d bytes provided\n", len);
#endif
return len;
}
int rtsp_session_peek_header(rtsp_session_t *this, char *buf, int maxsize) {
int len;
len = (this->header_len < maxsize) ? this->header_len : maxsize;
memcpy(buf, this->header, len);
return len;
}
void rtsp_session_end(rtsp_session_t *session) {
rtsp_close(session->s);
session->recv = xbuffer_free(session->recv);
free(session);
}
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