lcd4linux.git - lcd4linux

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/* gnutv utility Copyright (C) 2004, 2005 Manu Abraham <abraham.manu@gmail.com> Copyright (C) 2006 Andrew de Quincey (adq_dvb@lidskialf.net) 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., 675 Mass Ave, Cambridge, MA 02139, USA. */ #include <stdio.h> #include <unistd.h> #include <limits.h> #include <string.h> #include <fcntl.h> #include <signal.h> #include <pthread.h> #include <sys/poll.h> #include <libdvbapi/dvbdemux.h> #include <libdvbapi/dvbaudio.h> #include <libdvbsec/dvbsec_cfg.h> #include <libucsi/mpeg/section.h> #include "gnutv.h" #include "gnutv_dvb.h" #include "gnutv_ca.h" #include "gnutv_data.h" static void signal_handler(int _signal); static int quit_app = 0; void usage(void) { static const char *_usage = "\n" " gnutv: A digital tv utility\n" " Copyright (C) 2004, 2005, 2006 Manu Abraham (manu@kromtek.com)\n" " Copyright (C) 2006 Andrew de Quincey (adq_dvb@lidskialf.net)\n\n" " usage: gnutv <options> as follows:\n" " -h help\n" " -adapter <id> adapter to use (default 0)\n" " -frontend <id> frontend to use (default 0)\n" " -demux <id> demux to use (default 0)\n" " -caslotnum <id> ca slot number to use (default 0)\n" " -channels <filename> channels.conf file.\n" " -secfile <filename> Optional sec.conf file.\n" " -secid <secid> ID of the SEC configuration to use, one of:\n" " * UNIVERSAL (default) - Europe, 10800 to 11800 MHz and 11600 to 12700 Mhz,\n" " Dual LO, loband 9750, hiband 10600 MHz.\n" " * DBS - Expressvu, North America, 12200 to 12700 MHz, Single LO, 11250 MHz.\n" " * STANDARD - 10945 to 11450 Mhz, Single LO, 10000 Mhz.\n" " * ENHANCED - Astra, 10700 to 11700 MHz, Single LO, 9750 MHz.\n" " * C-BAND - Big Dish, 3700 to 4200 MHz, Single LO, 5150 Mhz.\n" " * C-MULTI - Big Dish - Multipoint LNBf, 3700 to 4200 MHz,\n" " Dual LO, H:5150MHz, V:5750MHz.\n" " * One of the sec definitions from the secfile if supplied\n" " -buffer <size> Custom DVR buffer size\n" " -out decoder Output to hardware decoder (default)\n" " decoderabypass Output to hardware decoder using audio bypass\n" " dvr Output stream to dvr device\n" " null Do not output anything\n" " stdout Output to stdout\n" " file <filename> Output stream to file\n" " udp <address> <port> Output stream to address:port using udp\n" " udpif <address> <port> <interface> Output stream to address:port using udp\n" " forcing the specified interface\n" " rtp <address> <port> Output stream to address:port using udp-rtp\n" " rtpif <address> <port> <interface> Output stream to address:port using udp-rtp\n" " forcing the specified interface\n" " -timeout <secs> Number of seconds to output channel for\n" " (0=>exit immediately after successful tuning, default is to output forever)\n" " -cammenu Show the CAM menu\n" " -nomoveca Do not attempt to move CA descriptors from stream to programme level\n" " <channel name>\n"; fprintf(stderr, "%s\n", _usage); exit(1); } int find_channel(struct dvbcfg_zapchannel *channel, void *private_data) { struct dvbcfg_zapchannel *tmpchannel = private_data; if (strcmp(channel->name, tmpchannel->name) == 0) { memcpy(tmpchannel, channel, sizeof(struct dvbcfg_zapchannel)); return 1; } return 0; } int main(int argc, char *argv[]) { int adapter_id = 0; int frontend_id = 0; int demux_id = 0; int caslot_num = 0; char *chanfile = "/etc/channels.conf"; char *secfile = NULL; char *secid = NULL; char *channel_name = NULL; int output_type = OUTPUT_TYPE_DECODER; char *outfile = NULL; char *outhost = NULL; char *outport = NULL; char *outif = NULL; struct addrinfo *outaddrs = NULL; int timeout = -1; int moveca = 1; int cammenu = 0; int argpos = 1; struct gnutv_dvb_params gnutv_dvb_params; struct gnutv_ca_params gnutv_ca_params; int ffaudiofd = -1; int usertp = 0; int buffer_size = 0; while(argpos != argc) { if (!strcmp(argv[argpos], "-h")) { usage(); } else if (!strcmp(argv[argpos], "-adapter")) { if ((argc - argpos) < 2) usage(); if (sscanf(argv[argpos+1], "%i", &adapter_id) != 1) usage(); argpos+=2; } else if (!strcmp(argv[argpos], "-frontend")) { if ((argc - argpos) < 2) usage(); if (sscanf(argv[argpos+1], "%i", &frontend_id) != 1) usage(); argpos+=2; } else if (!strcmp(argv[argpos], "-demux")) { if ((argc - argpos) < 2) usage(); if (sscanf(argv[argpos+1], "%i", &demux_id) != 1) usage(); argpos+=2; } else if (!strcmp(argv[argpos], "-caslotnum")) { if ((argc - argpos) < 2) usage(); if (sscanf(argv[argpos+1], "%i", &caslot_num) != 1) usage(); argpos+=2; } else if (!strcmp(argv[argpos], "-channels")) { if ((argc - argpos) < 2) usage(); chanfile = argv[argpos+1]; argpos+=2; } else if (!strcmp(argv[argpos], "-secfile")) { if ((argc - argpos) < 2) usage(); secfile = argv[argpos+1]; argpos+=2; } else if (!strcmp(argv[argpos], "-secid")) { if ((argc - argpos) < 2) usage(); secid = argv[argpos+1]; argpos+=2; } else if (!strcmp(argv[argpos], "-buffer")) { if ((argc - argpos) < 2) usage(); if (sscanf(argv[argpos+1], "%i", &buffer_size) != 1) usage(); if (buffer_size < 0) usage(); argpos+=2; } else if (!strcmp(argv[argpos], "-out")) { if ((argc - argpos) < 2) usage(); if (!strcmp(argv[argpos+1], "decoder")) { output_type = OUTPUT_TYPE_DECODER; } else if (!strcmp(argv[argpos+1], "decoderabypass")) { output_type = OUTPUT_TYPE_DECODER_ABYPASS; } else if (!strcmp(argv[argpos+1], "dvr")) { output_type = OUTPUT_TYPE_DVR; } else if (!strcmp(argv[argpos+1], "null")) { output_type = OUTPUT_TYPE_NULL; } else if (!strcmp(argv[argpos+1], "stdout")) { output_type = OUTPUT_TYPE_STDOUT; } else if (!strcmp(argv[argpos+1], "file")) { output_type = OUTPUT_TYPE_FILE; if ((argc - argpos) < 3) usage(); outfile = argv[argpos+2]; argpos++; } else if ((!strcmp(argv[argpos+1], "udp")) || (!strcmp(argv[argpos+1], "rtp"))) { output_type = OUTPUT_TYPE_UDP; if ((argc - argpos) < 4) usage(); if (!strcmp(argv[argpos+1], "rtp")) usertp = 1; outhost = argv[argpos+2]; outport = argv[argpos+3]; argpos+=2; } else if ((!strcmp(argv[argpos+1], "udpif")) || (!strcmp(argv[argpos+1], "rtpif"))) { output_type = OUTPUT_TYPE_UDP; if ((argc - argpos) < 5) usage(); if (!strcmp(argv[argpos+1], "rtpif")) usertp = 1; outhost = argv[argpos+2]; outport = argv[argpos+3]; outif = argv[argpos+4]; argpos+=3; } else { usage(); } argpos+=2; } else if (!strcmp(argv[argpos], "-timeout")) { if ((argc - argpos) < 2) usage(); if (sscanf(argv[argpos+1], "%i", &timeout) != 1) usage(); argpos+=2; } else if (!strcmp(argv[argpos], "-nomoveca")) { moveca = 0; argpos++; } else if (!strcmp(argv[argpos], "-cammenu")) { cammenu = 1; argpos++; } else { if ((argc - argpos) != 1) usage(); channel_name = argv[argpos]; argpos++; } } // the user didn't select anything! if ((channel_name == NULL) && (!cammenu)) usage(); // resolve host/port if ((outhost != NULL) && (outport != NULL)) { int res; struct addrinfo hints; memset(&hints, 0, sizeof(hints)); hints.ai_family = AF_UNSPEC; hints.ai_socktype = SOCK_DGRAM; if ((res = getaddrinfo(outhost, outport, &hints, &outaddrs)) != 0) { fprintf(stderr, "Unable to resolve requested address: %s\n", gai_strerror(res)); exit(1); } } // setup any signals signal(SIGINT, signal_handler); signal(SIGPIPE, SIG_IGN); // start the CA stuff gnutv_ca_params.adapter_id = adapter_id; gnutv_ca_params.caslot_num = caslot_num; gnutv_ca_params.cammenu = cammenu; gnutv_ca_params.moveca = moveca; gnutv_ca_start(&gnutv_ca_params); // frontend setup if a channel name was supplied if ((!cammenu) && (channel_name != NULL)) { // find the requested channel if (strlen(channel_name) >= sizeof(gnutv_dvb_params.channel.name)) { fprintf(stderr, "Channel name is too long %s\n", channel_name); exit(1); } FILE *channel_file = fopen(chanfile, "r"); if (channel_file == NULL) { fprintf(stderr, "Could open channel file %s\n", chanfile); exit(1); } memcpy(gnutv_dvb_params.channel.name, channel_name, strlen(channel_name) + 1); if (dvbcfg_zapchannel_parse(channel_file, find_channel, &gnutv_dvb_params.channel) != 1) { fprintf(stderr, "Unable to find requested channel %s\n", channel_name); exit(1); } fclose(channel_file); // default SEC with a DVBS card if ((secid == NULL) && (gnutv_dvb_params.channel.fe_type == DVBFE_TYPE_DVBS)) secid = "UNIVERSAL"; // look it up if one were supplied gnutv_dvb_params.valid_sec = 0; if (secid != NULL) { if (dvbsec_cfg_find(secfile, secid, &gnutv_dvb_params.sec)) { fprintf(stderr, "Unable to find suitable sec/lnb configuration for channel\n"); exit(1); } gnutv_dvb_params.valid_sec = 1; } // open the frontend gnutv_dvb_params.fe = dvbfe_open(adapter_id, frontend_id, 0); if (gnutv_dvb_params.fe == NULL) { fprintf(stderr, "Failed to open frontend\n"); exit(1); } // failover decoder to dvr output if decoder not available if ((output_type == OUTPUT_TYPE_DECODER) || (output_type == OUTPUT_TYPE_DECODER_ABYPASS)) { ffaudiofd = dvbaudio_open(adapter_id, 0); if (ffaudiofd < 0) { fprintf(stderr, "Cannot open decoder; defaulting to dvr output\n"); output_type = OUTPUT_TYPE_DVR; } } // start the DVB stuff gnutv_dvb_params.adapter_id = adapter_id; gnutv_dvb_params.frontend_id = frontend_id; gnutv_dvb_params.demux_id = demux_id; gnutv_dvb_params.output_type = output_type; gnutv_dvb_start(&gnutv_dvb_params); // start the data stuff gnutv_data_start(output_type, ffaudiofd, adapter_id, demux_id, buffer_size, outfile, outif, outaddrs, usertp); } // the UI time_t start = 0; while(!quit_app) { if (gnutv_dvb_locked() && (start == 0)) start = time(NULL); // the timeout if ((timeout != -1) && (start != 0)) { if ((time(NULL) - start) >= timeout) break; } if (cammenu) gnutv_ca_ui(); else usleep(1); } // stop data handling gnutv_data_stop(); // shutdown DVB stuff if (channel_name != NULL) gnutv_dvb_stop(); // shutdown CA stuff gnutv_ca_stop(); // done exit(0); } static void signal_handler(int _signal) { (void) _signal; if (!quit_app) { quit_app = 1; } }


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