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/*
* rtpfeed.c: get an rtp unicast/multicast/broacast stream and feed
* the DVB-S card with it
* Author: Guenter Wildmann
*
* Parts taken from dumprtp.c by David Podeur
*
* 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.
* Or, point your browser to http://www.gnu.org/copyleft/gpl.html
*
* The author can be reached at g.wildmann@it-lab.at,
*/
// Linux includes:
#include <stdio.h>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/un.h>
#include <resolv.h>
#include <sys/ioctl.h>
#include <fcntl.h>
#include <getopt.h>
#include <unistd.h>
#include "rtp.h"
// DVB includes:
#include <linux/dvb/dmx.h>
#include <linux/dvb/frontend.h>
void dumprtp(int socket, int fd_dvr) {
char* buf;
struct rtpheader rh;
int lengthData;
int written;
while(1) {
getrtp2(socket,&rh, &buf,&lengthData);
written = 0;
while(written < lengthData){
written += write(fd_dvr,buf+written, lengthData-written);
}//end while
}//end while
}// end dumprtp
void set_ts_filt(int fd,uint16_t pid, int type)
{
struct dmx_pes_filter_params pesFilterParams;
pesFilterParams.pid = pid;
pesFilterParams.input = DMX_IN_DVR;
pesFilterParams.output = DMX_OUT_DECODER;
if (type==1) pesFilterParams.pes_type = DMX_PES_VIDEO;
if (type==2) pesFilterParams.pes_type = DMX_PES_AUDIO;
pesFilterParams.flags = DMX_IMMEDIATE_START;
if (ioctl(fd, DMX_SET_PES_FILTER, &pesFilterParams) < 0) {
fprintf(stderr,"FILTER %i: ",pid);
perror("DMX SET PES FILTER");
}// end if
}// end set_ts_filt
int main(int argc, char *argv[]) {
// filedescriptors for video, audio and dvr-device
int fda,fdv;
int fd_dvr;
// pids for video and audio stream
uint16_t vpid = 0;
uint16_t apid = 0;
struct sockaddr_in si;
int socketIn;
char *ip = "224.0.1.2";
int port = 5004;
// process command-line arguments
static struct option long_options[]={
{"group", required_argument, NULL, 'g'},
{"port", required_argument, NULL, 'p'},
{"vpid", required_argument, NULL, 'v'},
{"apid", required_argument, NULL, 'a'},
{"help", no_argument, NULL, 'h'},
{0}
};
int c;
int option_index = 0;
fprintf(stderr,"*** rtpfeed 0.1 ***\n");
while((c = getopt_long(argc, argv, "g:p:v:a:h",long_options, &option_index))!=-1)
{
switch(c)
{
case 'g':
ip = optarg;
break;
case 'p':
port = atoi(optarg);
break;
case 'v':
vpid = atoi(optarg);
break;
case 'a':
apid = atoi(optarg);
break;
case 'h':
fprintf(stderr,"Usage: %s [-g group] [-p port] [-v video PID] [-a audio PID] \n",argv[0]);
exit(1);
}// end switch
}// end while
// open dvr device for output
if((fd_dvr = open("/dev/ost/dvr",O_WRONLY)) < 0){
perror("DVR DEVICE: ");
return -1;
}
// open video device, set filters
if(vpid!=0){
if((fdv = open("/dev/ost/demux",O_RDWR|O_NONBLOCK)) < 0){
perror("DEMUX DEVICE: ");
return -1;
}// end if
set_ts_filt(fdv, vpid, 1);
}// end if
// open audio device, set filters
if(apid!=0){
if((fda = open("/dev/ost/demux",O_RDWR|O_NONBLOCK)) < 0){
perror("DEMUX DEVICE: ");
return -1;
}// end if
set_ts_filt(fda, apid, 2);
}// end if
socketIn = makeclientsocket(ip,port,2,&si);
dumprtp(socketIn, fd_dvr);
close(socketIn);
return(0);
}
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