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/*
* test_dvr_play.c - Play TS file via dvr device.
*
* Copyright (C) 2000 Ralph Metzler <ralph@convergence.de>
* & Marcus Metzler <marcus@convergence.de>
* for convergence integrated media GmbH
* Copyright (C) 2003 Convergence GmbH
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
* as published by the Free Software Foundation; either version 2.1
* 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 Lesser 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 <sys/ioctl.h>
#include <stdio.h>
#include <stdint.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <time.h>
#include <sys/poll.h>
#include <string.h>
#include <unistd.h>
#include <errno.h>
#include <stdlib.h>
#include <linux/dvb/dmx.h>
#define BUFSIZE (512*188)
void play_file_dvr(int filefd, int dvrfd)
{
char buf[BUFSIZE];
int count, written, bytes, total = 0;
while ((count = read(filefd, buf, BUFSIZE)) > 0) {
total += count;
fprintf(stderr, "read %d (%d total)\n", count, total);
written = 0;
while (written < count) {
bytes = write(dvrfd, buf + written, count - written);
fprintf(stderr, "write %d\n", bytes);
if (bytes < 0) {
perror("write dvr");
return;
}
else if (bytes == 0) {
fprintf(stderr, "write dvr: 0 bytes !");
return;
}
written += bytes;
}
}
}
void set_pid(int fd, int pid, int type)
{
struct dmx_pes_filter_params pesFilterParams;
fprintf(stderr, "set PID 0x%04x (%d)\n", pid, type);
if (ioctl(fd, DMX_STOP) < 0)
perror("DMX STOP:");
if (ioctl(fd, DMX_SET_BUFFER_SIZE, 64*1024) < 0)
perror("DMX SET BUFFER:");
pesFilterParams.pid = pid;
pesFilterParams.input = DMX_IN_DVR;
pesFilterParams.output = DMX_OUT_DECODER;
pesFilterParams.pes_type = type;
pesFilterParams.flags = DMX_IMMEDIATE_START;
if (ioctl(fd, DMX_SET_PES_FILTER, &pesFilterParams) < 0)
perror("DMX SET FILTER");
}
int main(int argc, char **argv)
{
char *dmxdev = "/dev/dvb/adapter0/demux0";
char *dvrdev = "/dev/dvb/adapter0/dvr0";
int vpid, apid;
int filefd, dvrfd, vfd, afd;
if (argc < 4) {
fprintf(stderr, "usage: test_dvr_play TS-file video-PID audio-PID\n");
return 1;
}
vpid = strtoul(argv[2], NULL, 0);
apid = strtoul(argv[3], NULL, 0);
filefd = open(argv[1], O_RDONLY);
if (filefd == -1) {
fprintf(stderr, "Failed to open '%s': %d %m\n", argv[1], errno);
return 1;
}
fprintf(stderr, "Playing '%s', video PID 0x%04x, audio PID 0x%04x\n",
argv[1], vpid, apid);
if (getenv("DEMUX"))
dmxdev = getenv("DEMUX");
if (getenv("DVR"))
dvrdev = getenv("DVR");
if ((dvrfd = open(dvrdev, O_WRONLY)) == -1) {
fprintf(stderr, "Failed to open '%s': %d %m\n", dvrdev, errno);
return 1;
}
if ((vfd = open(dmxdev, O_WRONLY)) == -1) {
fprintf(stderr, "Failed to open video '%s': %d %m\n", dmxdev, errno);
return 1;
}
if ((afd = open(dmxdev, O_WRONLY)) == -1) {
fprintf(stderr, "Failed to open audio '%s': %d %m\n", dmxdev, errno);
return 1;
}
/* playback timing is controlled via A/V PTS, so we cannot start
* writing to the DVR device before the PIDs are set...
*/
set_pid(afd, apid, DMX_PES_AUDIO);
set_pid(vfd, vpid, DMX_PES_VIDEO);
play_file_dvr(filefd, dvrfd);
close(dvrfd);
close(afd);
close(vfd);
close(filefd);
return 0;
}
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