6f0bcd2002-09-09Honza Petrous /* * DVB module * * Creator: Honza Petrous <hop@unibase.cz> *
2505872002-09-25Marcus Comstedt  * $Id: dvb.c,v 1.5 2002/09/25 14:12:44 marcus Exp $
9f2ffa2002-09-24Honza Petrous  * * + Tuner zapping code based on 'szap' app from linux DVB driver * package [ szap.c: (c) 2001 Johannes Stezenbach js@convergence.de ] * + TS parsing code based on 'mgcam' app [ by badfish :]
6f0bcd2002-09-09Honza Petrous  * * Distro: aconfig.h (automake-> config.h.in), configure.in, Makefile.in * * Todo: * - remove crc32 table and use Gz.crc32() call * - "Frontend", "Mux" ... */ #include "config.h" #include "interpret.h" #include "svalue.h" #include "stralloc.h" #include "array.h" #include "object.h" #include "mapping.h" #include "pike_macros.h" #include "module_support.h" #include "builtin_functions.h" #ifdef HAVE_DVB #include <stdio.h> #include <stdlib.h> #include <limits.h> #include <string.h> #include <errno.h> #include <sys/ioctl.h> #include <sys/types.h> #include <sys/stat.h> #include <sys/poll.h> #include <fcntl.h> #include <time.h> #include <unistd.h> #include <stdint.h> #include <sys/time.h> #if HAVE_DVB > 19 # include <linux/dvb/version.h> # include <linux/dvb/sec.h> # include <linux/dvb/frontend.h> # include <linux/dvb/dmx.h> # include <linux/dvb//audio.h> #else # include <ost/sec.h> # include <ost/frontend.h> # include <ost/dmx.h> # include <ost/audio.h> #endif
2505872002-09-25Marcus Comstedt #endif /* HAVE_DVB */ /* MUST BE LAST */ #include "module_magic.h" #ifdef HAVE_DVB
6f0bcd2002-09-09Honza Petrous #define MAX_ERR_LEN 160 static struct program *dvb_program; struct ECMINFO { struct ECMINFO *next; char *name; int system; int ecm_pid; int id; }; typedef struct { int cardn; int fd; int secfd; struct ECMINFO *ecminfo; char low_errmsg[MAX_ERR_LEN+1]; } dvb_data; #define DVB ((dvb_data *)Pike_fp->current_storage) typedef struct { int cardn; int fd; char low_errmsg[MAX_ERR_LEN+1]; } fe_data; #define DEV_FE ((fe_data *)Pike_fp->current_storage) typedef struct { int cardn; int fd; char low_errmsg[MAX_ERR_LEN+1]; } audio_data; #define DEV_AUDIO ((audio_data *)Pike_fp->current_storage) #define IOCTL(X,Y,Z) \ if( ioctl( X, #Y, Z ) ) { \ fprintf(stderr, "ioctl " #Y " failed: %s\n", strerror(errno) ); \ push_int(0); \ } else \ push_int(1);
f470e72002-09-09Martin Nilsson /*! @module DVB
6f0bcd2002-09-09Honza Petrous  */
f470e72002-09-09Martin Nilsson /*! @class dvb
6f0bcd2002-09-09Honza Petrous  *! *! Implements Digital Video Broadcasting interface *! *! @note *! Only Linux version is supported. */
f470e72002-09-09Martin Nilsson /*! @decl void create(int card_number)
6f0bcd2002-09-09Honza Petrous  *! *! Create a DVB object. *! *! @param card_number *! The number of card equipment. *! */ static void f_create(INT32 args) { if(DVB->cardn != -1) Pike_error("Create already called!\n"); DVB->cardn = 0; if(args) if(Pike_sp[-1].type != T_INT) Pike_error("Invalid argument 1, expected int.\n"); else DVB->cardn = (u_short)Pike_sp[-1].u.integer; } /* create */ #if HAVE_DVB > 19 #define SECDEVICE "/dev/dvb/sec" #define FRONTENDDEVICE "/dev/dvb/frontend" #define DEMUXDEVICE "/dev/dvb/demux" #define AUDIODEVICE "/dev/dvb/audio" #else #define SECDEVICE "/dev/ost/sec" #define FRONTENDDEVICE "/dev/ost/frontend" #define DEMUXDEVICE "/dev/ost/demux" #define AUDIODEVICE "/dev/ost/audio" #endif /* LNB hi/lo band switch frequency in kHz */ #define SWITCHFREQ 11700000 /* LNB hi/lo band local oscillator frequencies in kHz */ #define LOF_HI 10600000 #define LOF_LO 9750000 static void f_fe_status(INT32 args) { int fd; uint32_t status; int cnt = 0; pop_n_elems(args); fd = open (FRONTENDDEVICE, O_RDONLY); if (fd < 0) { Pike_error ("opening FE failed"); } if(ioctl(fd, FE_READ_STATUS, &status) < 0) push_int(0); else { push_text("power"); push_int(!!(status & ~FE_HAS_POWER)); push_text("signal"); push_int(!!(status & ~FE_HAS_SIGNAL)); /*push_text("spectrum_inverse"); push_int(status & ~FE_HAS_SPECTRUM_INV);*/ push_text("lock"); push_int(!!(status & ~FE_HAS_LOCK)); push_text("carrier"); push_int(!!(status & ~FE_HAS_CARRIER)); push_text("viterbi"); push_int(!!(status & ~FE_HAS_VITERBI)); push_text("sync"); push_int(!!(status & ~FE_HAS_SYNC)); push_text("lock"); push_int(!!(status & ~FE_TUNER_HAS_LOCK)); cnt = 7; if(ioctl(fd, FE_READ_BER, &status) > -1) { push_text("ber"); push_int(status); cnt++; } if(ioctl(fd, FE_READ_SNR, &status) > -1) { push_text("snr"); push_int(status); cnt++; } if(ioctl(fd, FE_READ_SIGNAL_STRENGTH, &status) > -1) { push_text("signal_strength"); push_int(status); cnt++; } f_aggregate_mapping(2 * cnt); } close(fd); } static void f_fe_info(INT32 args) { int fd; FrontendInfo info; /* FIXME: and what about T- or C- varianats? */ /* ie. qamFrontendInfi ... etc */ pop_n_elems(args); fd = open (FRONTENDDEVICE, O_RDONLY); if (fd < 0) { Pike_error ("opening FE failed"); } if(ioctl(fd, FE_GET_INFO, &info) < 0) push_int(0); else { push_text("frequency"); push_text("min"); push_int(info.minFrequency); push_text("max"); push_int(info.maxFrequency); f_aggregate_mapping(2 * 2); push_text("sr"); push_text("min"); push_int(info.minSymbolRate); push_text("max"); push_int(info.maxSymbolRate); f_aggregate_mapping(2 * 2); push_text("hardware"); push_text("type"); push_int(info.hwType); push_text("version"); push_int(info.hwVersion); f_aggregate_mapping(2 * 2); f_aggregate_mapping(2 * 3); } close(fd); } static int set_demux (int dmxfd, int pid, int dmx_type) { struct dmxPesFilterParams pesfilter; if (!pid) return 1; pesfilter.pid = pid; pesfilter.input = DMX_IN_FRONTEND; pesfilter.output = DMX_OUT_DECODER; pesfilter.pesType = dmx_type; //(audio ? DMX_PES_AUDIO : DMX_PES_VIDEO); pesfilter.flags = DMX_IMMEDIATE_START; if (ioctl (dmxfd, DMX_SET_PES_FILTER, &pesfilter) == -1 && pid && pid != 0x1fff) { snprintf (DVB->low_errmsg, MAX_ERR_LEN, "DMX_SET_PES_FILTER failed (PID = 0x%04x): %d\n", pid, errno); return 0; } return 1; } /* digital satellite equipment control, * specification is available from http://www.eutelsat.com/ */ static int diseqc (int secfd, int sat_no, int pol, int hi_lo) { struct secCmdSequence secseq; struct secCommand scmd; scmd.type = SEC_CMDTYPE_DISEQC; scmd.u.diseqc.addr = 0x10; /* any switch */ scmd.u.diseqc.cmd = 0x38; /* set port group 0 */ scmd.u.diseqc.numParams = 1; /* param: high nibble: reset bits, low nibble set bits, * bits are: option, position, polarizaion, band */ scmd.u.diseqc.params[0] = 0xF0 | (((sat_no * 4) & 0x0F) | (hi_lo?1:0) | (pol?0:2)); /* tone/volt for backwards compatiblity with non-diseqc LNBs */ secseq.voltage = pol ? SEC_VOLTAGE_13 : SEC_VOLTAGE_18; secseq.continuousTone = hi_lo ? SEC_TONE_ON : SEC_TONE_OFF; secseq.miniCommand = SEC_MINI_NONE; secseq.numCommands = 1; secseq.commands = &scmd; if (ioctl (secfd, SEC_SEND_SEQUENCE, &secseq) == -1) return 0; return 1; } static int do_tune(int fefd, uint ifreq, uint sr) { FrontendParameters tuneto; FrontendEvent ev; struct pollfd pfd; int prc; /* discard stale QPSK events */ while (1) { if (ioctl (fefd, FE_GET_EVENT, &ev) == -1) break; } tuneto.Frequency = ifreq; tuneto.u.qpsk.SymbolRate = sr; tuneto.u.qpsk.FEC_inner = FEC_AUTO; if (ioctl (fefd, FE_SET_FRONTEND, &tuneto) == -1) { snprintf (DVB->low_errmsg, MAX_ERR_LEN, "FE_SET_FRONTEND failed"); return 0; } /* wait for tunig to complete, with timout */ pfd.fd = fefd; pfd.events = POLLIN | POLLPRI; prc = poll (&pfd, 1, 5000); if (prc == -1) { snprintf (DVB->low_errmsg, MAX_ERR_LEN, "FE_GET_EVENT failed"); return 0; } else if (prc == 0) { snprintf (DVB->low_errmsg, MAX_ERR_LEN, "FE_GET_EVENT timed out"); return 0; } if (ioctl (fefd, FE_GET_EVENT, &ev) == -1) { snprintf (DVB->low_errmsg, MAX_ERR_LEN, "FE_GET_EVENT failed"); return 0; } if (ev.type != FE_COMPLETION_EV) { snprintf (DVB->low_errmsg, MAX_ERR_LEN, "tuning failed\n"); return 0; } return 1; }
f470e72002-09-09Martin Nilsson /*! @decl int tune(int(0..3) lnb, int freq, int(0..1)|string pol, int sr, void|mapping(int|string:array(int)) pids)
6f0bcd2002-09-09Honza Petrous  *! *! Tunes to apropriate transponder's parameters and optionally *! sets PID(s). *! *! @param lnb *! DiSeQc number of LNB. *! *! @param freq *! Frequency divided by 1000. *! *! @param pol *! Polarization. @tt{0@} or @tt{"v"@} for vertical type, *! @tt{1@} or @tt{"h"@} for horizontal one. *! *! @param sr *! The service rate parameter. *! *! @param pids *! This optional mapping can contain zero or more of the *! following PIDs: *! *! @mapping *! *! @member array "audio" *! @member array "video" *! @member array "teletext" *! @member array "audio" *! List of PIDs which should be set out. *! *! @endmapping */ static void f_zap(INT32 args) { int secfd, fefd, videofd, audiofd; uint ifreq; int hiband, result; FrontendInfo fe_info; int satno; uint freq; int pol; uint sr; int vpid = 0; int apid = 0; check_all_args("DVB.dvb->tune", args, BIT_INT, BIT_INT, BIT_INT | BIT_STRING, BIT_INT, BIT_MAPPING | BIT_VOID, 0); if(args > 4) { /* loop */ apid = (u_short)Pike_sp[-1].u.integer; Pike_sp--; } sr = (u_short)Pike_sp[-1].u.integer * 1000; Pike_sp--; if(Pike_sp[-1].type == T_INT) pol = (u_short)Pike_sp[-1].u.integer; else pol = Pike_sp[-1].u.string->str[0] == 'V' || Pike_sp[-1].u.string->str[0] == 'v'; Pike_sp--; freq = (u_short)Pike_sp[-1].u.integer * 1000; Pike_sp--; satno = (u_short)Pike_sp[-1].u.integer; secfd = open (SECDEVICE, O_RDWR); if (secfd == -1) { Pike_error ("opening SEC failed"); } fefd = open (FRONTENDDEVICE, O_RDWR | O_NONBLOCK); if (fefd == -1) { close (secfd); Pike_error("opening frontend failed"); } result = ioctl (fefd, FE_GET_INFO, &fe_info); if (result == -1 || fe_info.type != FE_QPSK) { close (fefd); close (secfd); Pike_error("ioctl on fefd failed"); } videofd = open (DEMUXDEVICE, O_RDWR); if (videofd == -1) { close (fefd); close (secfd); Pike_error("opening video demux failed"); } audiofd = open (DEMUXDEVICE, O_RDWR); if (audiofd == -1) { close (videofd); close (fefd); close (secfd); Pike_error("opening audio demux failed"); } hiband = (freq >= SWITCHFREQ); if (hiband) ifreq = freq - LOF_HI; else ifreq = freq - LOF_LO; result = 0; if (diseqc (secfd, satno, pol, hiband)) if (do_tune (fefd, ifreq, sr)) if (set_demux (videofd, vpid, DMX_PES_VIDEO)) if (set_demux (audiofd, apid, DMX_PES_AUDIO)) result = 1; close (audiofd); close (videofd); close (fefd); close (secfd); if(!result) Pike_error(DVB->low_errmsg); push_int(result); }
0f74c82002-09-09Honza Petrous /*! @decl mapping|int get_pids()
6f0bcd2002-09-09Honza Petrous  *!
0f74c82002-09-09Honza Petrous  *! Returns mapping with info of currently tuned program's pids.
6f0bcd2002-09-09Honza Petrous  *! *! @seealso
0f74c82002-09-09Honza Petrous  *! @[tune()]
6f0bcd2002-09-09Honza Petrous  */ static void f_get_pids(INT32 args) { //dvb_pid_t pids[sizeof(dmxPesType_t)]; dvb_pid_t pids[7]; int fd; int cnt = 0; pop_n_elems(args); /* get the current PID settings */ if((fd = open (DEMUXDEVICE, O_RDWR/*|O_NONBLOCK*/)) < 0) Pike_error("opening demux failed.\n"); if (ioctl(fd,DMX_GET_PES_PIDS,&pids)) { close(fd); Pike_error("GET PIDS failed.\n"); } close(fd); if(DVB->cardn != -1) { push_text("audio"); push_int( pids[DMX_PES_AUDIO] & 0x1fff ); cnt++; push_text("video"); push_int( pids[DMX_PES_VIDEO] & 0x1fff ); cnt++; push_text("teletext"); push_int( pids[DMX_PES_TELETEXT] & 0x1fff ); cnt++; push_text("subtitle"); push_int( pids[DMX_PES_SUBTITLE] & 0x1fff ); cnt++; push_text("pcr"); push_int( pids[DMX_PES_PCR] & 0x1fff ); cnt++; push_text("other"); push_int( pids[DMX_PES_OTHER] & 0x1fff ); cnt++; if(cnt) f_aggregate_mapping( 2 * cnt ); else push_int(0); } else push_int(0); } /** * Set a filter for a DVB stream **/ static int SetFilt(int fd,int pid,int tnr) { struct dmxSctFilterParams FilterParams; memset(&FilterParams.filter.filter,0,DMX_FILTER_SIZE); memset(&FilterParams.filter.mask,0,DMX_FILTER_SIZE); if (tnr >= 0) { FilterParams.filter.filter[0] = tnr; FilterParams.filter.mask[0] = 0xff; } FilterParams.timeout = 15000; FilterParams.flags = DMX_IMMEDIATE_START; FilterParams.pid = pid; if (ioctl(fd,DMX_SET_FILTER,&FilterParams) < 0) { snprintf (DVB->low_errmsg, MAX_ERR_LEN, "DMX SET SECTION FILTER"); return 0; } return 1; } /** * Stop a PID filter. **/ static int StopFilt(int fd) { return (!ioctl(fd,DMX_STOP)); } /* FIXME: Remove CRC32 table and use Gz.crc32() */ static unsigned long crc_table[256] = { 0x00000000, 0x04c11db7, 0x09823b6e, 0x0d4326d9, 0x130476dc, 0x17c56b6b, 0x1a864db2, 0x1e475005, 0x2608edb8, 0x22c9f00f, 0x2f8ad6d6, 0x2b4bcb61, 0x350c9b64, 0x31cd86d3, 0x3c8ea00a, 0x384fbdbd, 0x4c11db70, 0x48d0c6c7, 0x4593e01e, 0x4152fda9, 0x5f15adac, 0x5bd4b01b, 0x569796c2, 0x52568b75, 0x6a1936c8, 0x6ed82b7f, 0x639b0da6, 0x675a1011, 0x791d4014, 0x7ddc5da3, 0x709f7b7a, 0x745e66cd, 0x9823b6e0, 0x9ce2ab57, 0x91a18d8e, 0x95609039, 0x8b27c03c, 0x8fe6dd8b, 0x82a5fb52, 0x8664e6e5, 0xbe2b5b58, 0xbaea46ef, 0xb7a96036, 0xb3687d81, 0xad2f2d84, 0xa9ee3033, 0xa4ad16ea, 0xa06c0b5d, 0xd4326d90, 0xd0f37027, 0xddb056fe, 0xd9714b49, 0xc7361b4c, 0xc3f706fb, 0xceb42022, 0xca753d95, 0xf23a8028, 0xf6fb9d9f, 0xfbb8bb46, 0xff79a6f1, 0xe13ef6f4, 0xe5ffeb43, 0xe8bccd9a, 0xec7dd02d, 0x34867077, 0x30476dc0, 0x3d044b19, 0x39c556ae, 0x278206ab, 0x23431b1c, 0x2e003dc5, 0x2ac12072, 0x128e9dcf, 0x164f8078, 0x1b0ca6a1, 0x1fcdbb16, 0x018aeb13, 0x054bf6a4, 0x0808d07d, 0x0cc9cdca, 0x7897ab07, 0x7c56b6b0, 0x71159069, 0x75d48dde, 0x6b93dddb, 0x6f52c06c, 0x6211e6b5, 0x66d0fb02, 0x5e9f46bf, 0x5a5e5b08, 0x571d7dd1, 0x53dc6066, 0x4d9b3063, 0x495a2dd4, 0x44190b0d, 0x40d816ba, 0xaca5c697, 0xa864db20, 0xa527fdf9, 0xa1e6e04e, 0xbfa1b04b, 0xbb60adfc, 0xb6238b25, 0xb2e29692, 0x8aad2b2f, 0x8e6c3698, 0x832f1041, 0x87ee0df6, 0x99a95df3, 0x9d684044, 0x902b669d, 0x94ea7b2a, 0xe0b41de7, 0xe4750050, 0xe9362689, 0xedf73b3e, 0xf3b06b3b, 0xf771768c, 0xfa325055, 0xfef34de2, 0xc6bcf05f, 0xc27dede8, 0xcf3ecb31, 0xcbffd686, 0xd5b88683, 0xd1799b34, 0xdc3abded, 0xd8fba05a, 0x690ce0ee, 0x6dcdfd59, 0x608edb80, 0x644fc637, 0x7a089632, 0x7ec98b85, 0x738aad5c, 0x774bb0eb, 0x4f040d56, 0x4bc510e1, 0x46863638, 0x42472b8f, 0x5c007b8a, 0x58c1663d, 0x558240e4, 0x51435d53, 0x251d3b9e, 0x21dc2629, 0x2c9f00f0, 0x285e1d47, 0x36194d42, 0x32d850f5, 0x3f9b762c, 0x3b5a6b9b, 0x0315d626, 0x07d4cb91, 0x0a97ed48, 0x0e56f0ff, 0x1011a0fa, 0x14d0bd4d, 0x19939b94, 0x1d528623, 0xf12f560e, 0xf5ee4bb9, 0xf8ad6d60, 0xfc6c70d7, 0xe22b20d2, 0xe6ea3d65, 0xeba91bbc, 0xef68060b, 0xd727bbb6, 0xd3e6a601, 0xdea580d8, 0xda649d6f, 0xc423cd6a, 0xc0e2d0dd, 0xcda1f604, 0xc960ebb3, 0xbd3e8d7e, 0xb9ff90c9, 0xb4bcb610, 0xb07daba7, 0xae3afba2, 0xaafbe615, 0xa7b8c0cc, 0xa379dd7b, 0x9b3660c6, 0x9ff77d71, 0x92b45ba8, 0x9675461f, 0x8832161a, 0x8cf30bad, 0x81b02d74, 0x857130c3, 0x5d8a9099, 0x594b8d2e, 0x5408abf7, 0x50c9b640, 0x4e8ee645, 0x4a4ffbf2, 0x470cdd2b, 0x43cdc09c, 0x7b827d21, 0x7f436096, 0x7200464f, 0x76c15bf8, 0x68860bfd, 0x6c47164a, 0x61043093, 0x65c52d24, 0x119b4be9, 0x155a565e, 0x18197087, 0x1cd86d30, 0x029f3d35, 0x065e2082, 0x0b1d065b, 0x0fdc1bec, 0x3793a651, 0x3352bbe6, 0x3e119d3f, 0x3ad08088, 0x2497d08d, 0x2056cd3a, 0x2d15ebe3, 0x29d4f654, 0xc5a92679, 0xc1683bce, 0xcc2b1d17, 0xc8ea00a0, 0xd6ad50a5, 0xd26c4d12, 0xdf2f6bcb, 0xdbee767c, 0xe3a1cbc1, 0xe760d676, 0xea23f0af, 0xeee2ed18, 0xf0a5bd1d, 0xf464a0aa, 0xf9278673, 0xfde69bc4, 0x89b8fd09, 0x8d79e0be, 0x803ac667, 0x84fbdbd0, 0x9abc8bd5, 0x9e7d9662, 0x933eb0bb, 0x97ffad0c, 0xafb010b1, 0xab710d06, 0xa6322bdf, 0xa2f33668, 0xbcb4666d, 0xb8757bda, 0xb5365d03, 0xb1f740b4 }; static unsigned long crc32 (char *data,int len) { unsigned long crc = 0xffffffff; int i; for (i=0; i<len; i++) crc = (crc << 8) ^ crc_table[((crc >> 24) ^ *data++) & 0xff]; return crc; } /* internal */ static int read_t(int fd,unsigned char *buffer,int length,int cks) { struct pollfd u[1]; int retries; int n,l; for (retries=0;retries<100;retries++) { u[0].fd = fd; u[0].events = POLLIN; n = poll(u,1,20000); if (n < 0) { perror("poll error"); return -1; } if (n == 0) { fprintf(stderr,"timeout\n"); return -1; } buffer[0] = 0; n = read(fd,buffer+1,length-1); if (n < 0) { perror("read error"); return -1; } if (cks && crc32(buffer+1,n) != 0) { fprintf(stderr,"crc error\n"); continue; } break; } return n+1; } /* * Parse the PAT to get the PMT. */ //static int ParsePAT(int fd,int program_number,int *pid) static void f_parse_pat(INT32 args) { unsigned char buffer[4096]; int length,index; int n; int fd; int p, cnt = 0; int pid = -1; pop_n_elems(args); /* The PAT is supposed to fit in a 184 bytes packet */ if((fd = open (DEMUXDEVICE, O_RDWR/*|O_NONBLOCK*/)) < 0) Pike_error("opening demux failed.\n"); SetFilt(fd,0,0); // if setfilt ... error do { n = read_t(fd,buffer,sizeof(buffer),1); } while (n>=2 && (buffer[0]!=0 || buffer[1]!=0)); StopFilt(fd); close(fd); if (n < 2) push_int(0); //return -1; length = ((buffer[2] & 0x0F) << 8) | buffer[3]; for (index=9; index<length-4 && index<184; index +=4) { p = (buffer[index] << 8) | buffer[index+1]; push_int(p); pid = ((buffer[index+2] << 8) | buffer[index+3]) & 0x1FFF; push_int(pid); cnt++; } if(cnt) f_aggregate_mapping(cnt*2); //push_array(aggregate_array(cnt)); else push_int(0); } #define SECA_CA_SYSTEM 0x100 #define VIACCESS_CA_SYSTEM 0x500 #define IRDETO_CA_SYSTEM 0x600 #define BETA_CA_SYSTEM 0x1700 #define NAGRA_CA_SYSTEM 0x1800 /** * Parse CA descriptor **/ static void ParseCADescriptor (unsigned char *data,int length) { static char *seca_name = "Seca"; static char *viaccess_name = "Viaccess"; static char *nagra_name = "Nagra"; static char *irdeto_name = "Irdeto"; int ca_system; int j; struct ECMINFO *e; /*if (debug) { printf("ca_descr"); for (j=0; j<length; j++) printf(" %02x",data[j]); printf("\n"); }*/ /* only test the upper 8 bits of the ca_system */ ca_system = (data[0] << 8) /* | data[1]*/; switch (ca_system) { case SECA_CA_SYSTEM: for (j=2; j<length; j+=15) { e = malloc(sizeof(struct ECMINFO)); if (e == 0) return; e->system = ca_system; e->name = seca_name; e->ecm_pid = ((data[j] & 0x1f) << 8) | data[j+1]; e->id = (data[j+2] << 8) | data[j+3]; e->next = DVB->ecminfo; DVB->ecminfo = e; //fprintf(stderr,"Found seca id %04x\n",e->id); } break; case VIACCESS_CA_SYSTEM: j = 4; while (j < length) { if (data[j]==0x14) { e = malloc(sizeof(struct ECMINFO)); if (e == 0) return; e->system = ca_system; e->name = viaccess_name; e->ecm_pid = ((data[2] & 0x1f) << 8) | data[3]; e->id = (data[j+2] << 16) | (data[j+3] << 8) | (data[j+4] & 0xf0); e->next = DVB->ecminfo; DVB->ecminfo = e; //fprintf(stderr,"Found viaccess id %04x\n",e->id); } j += 2+data[j+1]; } break; case IRDETO_CA_SYSTEM: case BETA_CA_SYSTEM: e = malloc(sizeof(struct ECMINFO)); if (e == 0) return; e->system = ca_system; e->name = irdeto_name; e->ecm_pid = ((data[2] & 0x1f) << 8) | data[3]; e->next = DVB->ecminfo; DVB->ecminfo = e; // printf("Found irdeto\n"); break; case NAGRA_CA_SYSTEM: e = malloc(sizeof(struct ECMINFO)); if (e == 0) return; e->system = ca_system; e->name = nagra_name; e->ecm_pid = ((data[2] & 0x1f) << 8) | data[3]; e->next = DVB->ecminfo; DVB->ecminfo = e; //fprintf(stderr,"Found nagra\n"); break; } } /** * Parse PMT to get ECM PID **/ //static int ParsePMT(int fd,int program_number,int pmt_pid) static void f_parse_pmt(INT32 args) { unsigned char buffer[4096]; int length,info_len,data_len,index; int retries; int pid; int n,i; int vpid = 0; int apid = 0; int pnr = -1; int fd; int program_number; int pmt_pid; check_all_args("DVB.dvb->analyze_pmt", args, BIT_INT, BIT_INT, 0); pmt_pid = (u_short)Pike_sp[-1].u.integer; Pike_sp--; program_number = (u_short)Pike_sp[-1].u.integer; Pike_sp--; if((fd = open (DEMUXDEVICE, O_RDWR/*|O_NONBLOCK*/)) < 0) Pike_error("opening demux failed.\n"); SetFilt(fd,pmt_pid,2); for (retries=0; retries<100; retries++) { do { n = read_t(fd,buffer,sizeof(buffer),1); } while (n>=2 && (buffer[0]!=0 || buffer[1]!=0x02)); length = ((buffer[2] & 0x0F) << 8) | buffer[3]; if (length+4 > sizeof(buffer)) n = -1; if (n < 2) break; pnr = (buffer[4]<<8) + buffer[5]; if (pnr == program_number) break; } StopFilt(fd); if (pnr != program_number) { fprintf(stderr, "Can't find PMT entry\n"); //return -1; close(fd); push_int(0); return; } index = 11; info_len = ((buffer[index] & 0x0F) << 8) + buffer[index+1]; index += 2; while (info_len > 0) { if (buffer[index] == 0x09) ParseCADescriptor(&buffer[index+2], buffer[index+1]); info_len -= 2+buffer[index+1]; index += 2+buffer[index+1]; } while (index < length-4) { pid = ((buffer[index+1] & 0x1f) << 8) + buffer[index+2]; if (buffer[index]==2 && vpid==0) vpid = pid; else if ((buffer[index]==3 || buffer[index]==4) && apid==0) apid = pid; data_len = ((buffer[index+3] & 0x0F) << 8) + buffer[index+4]; if (buffer[index]==0x02 || buffer[index]==0x03 || buffer[index]==0x04) { i = index+5; while (i < index+5+data_len) { switch (buffer[i]) { case 0x0a: if (buffer[index]==3 || buffer[index]==4) { fprintf(stderr, "Language = %.3s\n",&buffer[i+2]); } break; case 0x09: ParseCADescriptor(&buffer[i+2],buffer[i+1]); break; } i += 2 + buffer[i+1]; } } index += 5 + data_len; } //SetPids(fd,vpid,apid); close(fd); push_int(1); }
f470e72002-09-09Martin Nilsson /*! @decl int audio_mute(int mute) *! @decl int audio_mute()
6f0bcd2002-09-09Honza Petrous  *! *! Mute or unmute audio device. *! *| @seealso *| @[audio_mixer()] */ static void f_audio_mute(INT32 args) { int mute = 1; /* default is mute = on */ int afd; check_all_args("DVB.dvb->audio_mute", args, BIT_INT | BIT_VOID, 0); if(args) { mute = (u_short)Pike_sp[-1].u.integer; Pike_sp--; } afd = open (AUDIODEVICE, O_RDWR); if (afd < 0) { Pike_error ("opening AUDIO failed"); } if(ioctl(afd, AUDIO_SET_MUTE, mute) < 0) push_int(0); else push_int(1); close(afd); } static void f_audio_status(INT32 args) { int afd; audioStatus_t status; pop_n_elems(args); afd = open (AUDIODEVICE, O_RDWR); if (afd < 0) { Pike_error ("opening AUDIO failed"); } if(ioctl(afd, AUDIO_GET_STATUS, &status) < 0) push_int(0); else { push_text("av_sync"); push_int(status.AVSyncState); push_text("mute"); push_int(status.muteState); push_text("state"); switch(status.playState) { case AUDIO_STOPPED: push_text("stopped"); break; case AUDIO_PLAYING: push_text("playing"); break; case AUDIO_PAUSED: push_text("paused"); break; default: push_text("unknown"); } push_text("source"); switch(status.streamSource) { case AUDIO_SOURCE_DEMUX: push_text("demux"); break; case AUDIO_SOURCE_MEMORY: push_text("memory"); break; default: push_text("unknown"); } push_text("channels"); switch(status.channelSelect) { case AUDIO_STEREO: push_text("stereo"); break; case AUDIO_MONO_LEFT: push_text("left"); break; case AUDIO_MONO_RIGHT: push_text("right"); break; default: push_text("unknown"); } push_text("bypass"); push_int(status.bypassMode); f_aggregate_mapping( 2 * 6 ); } close(afd); } static void f_audio_ctrl(INT32 args) { int afd; int cw = -1; check_all_args("DVB.dvb->ctrl", args, BIT_INT | BIT_STRING, 0); if(Pike_sp[-1].type == T_INT) cw = (u_short)Pike_sp[-1].u.integer; else if(!strcmp(Pike_sp[-1].u.string->str, "play")) cw = AUDIO_PLAY; else if(!strcmp(Pike_sp[-1].u.string->str, "pause")) cw = AUDIO_PAUSE; else if(!strcmp(Pike_sp[-1].u.string->str, "continue")) cw = AUDIO_CONTINUE; Pike_sp--; if(cw == -1) { push_int(0); return; } afd = open (AUDIODEVICE, O_RDWR); if (afd < 0) { Pike_error ("opening AUDIO failed"); } if(ioctl(afd, cw) < 0) push_int(0); else push_int(1); close(afd); }
f470e72002-09-09Martin Nilsson /*! @decl int audio_mixer(int left, int right) *! @decl int audio_mixer(int both)
6f0bcd2002-09-09Honza Petrous  *! *! Sets output level on DVB audio device. *! *| @seealso *| @[audio_mute()] */ static void f_audio_mixer(INT32 args) { int afd; audioMixer_t mixer; check_all_args("DVB.dvb->audio_mixer", args, BIT_INT, BIT_INT | BIT_VOID, 0); mixer.volume_right = (unsigned int)Pike_sp[-1].u.integer; Pike_sp--; if(args > 1) { mixer.volume_left = (unsigned int)Pike_sp[-1].u.integer; Pike_sp--; } else mixer.volume_left = mixer.volume_right; afd = open (AUDIODEVICE, O_RDWR); if (afd < 0) { Pike_error ("opening AUDIO failed"); } if(ioctl(afd, AUDIO_SET_MIXER, &mixer) < 0) { Pike_error("seting mixer failed"); push_int(0); } else push_int(1); close(afd); }
f470e72002-09-09Martin Nilsson /*! @endclass
6f0bcd2002-09-09Honza Petrous  */
f470e72002-09-09Martin Nilsson /*! @endmodule
6f0bcd2002-09-09Honza Petrous  */ static void init_dvb_data(struct object *obj) { DVB->cardn = -1; DVB->secfd = 0; DVB->ecminfo = NULL; memset(&DVB->low_errmsg, '\0', sizeof(DVB->low_errmsg)); } static void exit_dvb_data(struct object *obj) { struct ECMINFO *e; if(DVB->cardn != -1) { if(DVB->secfd) close(DVB->secfd); } if(DVB->ecminfo != NULL) do { e = DVB->ecminfo->next; free(DVB->ecminfo); DVB->ecminfo = e; } while (e != NULL); } static void init_fe_data(struct object *obj) { } static void exit_fe_data(struct object *obj) { } static void init_audio_data(struct object *obj) { } static void exit_audio_data(struct object *obj) { } /* * --------------------- * Pike module API * --------------------- */ void pike_module_init() { /* * Internal constant names * */ add_integer_constant("MUX_AUDIO", DMX_PES_AUDIO, 0); add_integer_constant("MUX_VIDEO", DMX_PES_VIDEO, 0); add_integer_constant("MUX_OTHER", DMX_PES_OTHER, 0); add_integer_constant("CA_SYSTEM_SECA", SECA_CA_SYSTEM, 0); add_integer_constant("CA_SYSTEM_VIACCESS", VIACCESS_CA_SYSTEM, 0); add_integer_constant("CA_SYSTEM_IRDETO", IRDETO_CA_SYSTEM, 0); add_integer_constant("CA_SYSTEM_BETA", BETA_CA_SYSTEM, 0); add_integer_constant("CA_SYSTEM_NAGRA", NAGRA_CA_SYSTEM, 0); start_new_program(); ADD_STORAGE(dvb_data); set_init_callback(init_dvb_data); set_exit_callback(exit_dvb_data); // dvb add_function("create", f_create, "function(int|void:void)", 0); add_function("tune", f_zap, "function(int,int,int|string,int,mapping|void:int)", 0); //add_function("set_pids", f_set_pids, "function(string,mixed:int)", 0); add_function("get_pids", f_get_pids, "function(:mapping|int)", 0); add_function("analyze_pat", f_parse_pat, "function(:mapping|int)", 0); add_function("analyze_pmt", f_parse_pmt, "function(int,int:array|int)", 0); //end_class("dvb", 0); // Frontend add_function("fe_status", f_fe_status, "function(:mapping|int)", 0); add_function("fe_info", f_fe_info, "function(:mapping|int)", 0); // Audio add_function("audio_mute", f_audio_mute, "function(int|void:int)", 0); add_function("audio_status", f_audio_status, "function(:mapping|int)", 0); add_function("audio_ctrl", f_audio_ctrl, "function(int|string:int)", 0); add_function("audio_mixer", f_audio_mixer, "function(int,int|void:int)", 0); end_class("dvb", 0); } /* pike_module_init */ void pike_module_exit() { if(dvb_program) { free_program(dvb_program); dvb_program = NULL; } } /* pike_module_exit */ #else void pike_module_init() { add_integer_constant("DVB support IS MISSING", 0, 0); } void pike_module_exit() { } #endif