pike.git / src / modules / DVB / dvb.c

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pike.git/src/modules/DVB/dvb.c:1: + /* + || This file is part of Pike. For copyright information see COPYRIGHT. + || Pike is distributed under GPL, LGPL and MPL. See the file COPYING + || for more information. + */    -  + /* +  * DVB module +  * +  * Creator: Honza Petrous <hop@unibase.cz> +  * +  * Credits: +  * + Tuner zapping code inspired on 'szap' app from linux DVB driver +  * package +  * + PMT,PAT,ECM parsing code based on 'mgcam' app [ by badfish :] +  * +  * 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 "module.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> + # ifdef HAVE_LINUX_DVB_SEC_H + # include <linux/dvb/sec.h> + # endif + # include <linux/dvb/frontend.h> + # include <linux/dvb/dmx.h> + # include <linux/dvb/audio.h> + # define SECDEVICE "/dev/dvb/sec" + # define FRONTENDDEVICE "/dev/dvb/frontend" + # define DEMUXDEVICE "/dev/dvb/demux" + # define AUDIODEVICE "/dev/dvb/audio" + #else + # include <ost/sec.h> + # include <ost/frontend.h> + # include <ost/dmx.h> + # include <ost/audio.h> + # define SECDEVICE "/dev/ost/sec" + # define FRONTENDDEVICE "/dev/ost/frontend" + # define DEMUXDEVICE "/dev/ost/demux" + # define AUDIODEVICE "/dev/ost/audio" + #endif +  + #include "interpret.h" + #include "svalue.h" + #include "stralloc.h" + #include "array.h" + #include "object.h" + #include "mapping.h" + #include "pike_macros.h" + #include "threads.h" + #include "fd_control.h" + #include "module_support.h" + #include "builtin_functions.h" + #include "operators.h" +  + #include "dvb.h" +  + #if HAVE_DVB >= 30 + /* Compat with old DVB. */ + /* frontend.h */ + typedef struct dvb_frontend_info FrontendInfo; + typedef struct dvb_frontend_parameters FrontendParameters; + typedef struct dvb_frontend_event FrontendEvent; + #define minFrequency frequency_min + #define maxFrequency frequency_max + #define minSymbolRate symbol_rate_min + #define maxSymbolRate symbol_rate_max + #define hwType type + #define Frequency frequency + #define SymbolRate symbol_rate + #define FEC_inner fec_inner + /* audio.h */ + typedef audio_status_t audioStatus_t; + typedef audio_mixer_t audioMixer_t; + #define AVSyncState AV_sync_state + #define muteState mute_state + #define playState play_state + #define streamSource stream_source + #define channelSelect channel_select + #define bypassMode bypass_mode + /* dmx.h */ + typedef __u16 dvb_pid_t; + #define dmxSctFilterParams dmx_sct_filter_params + #define dmxPesFilterParams dmx_pes_filter_params + #define pesType pes_type + #endif +  + /* WARNING: It is a design limit of DVB-S full cards! */ + #define MAX_PES_FD 8 +  + #define _DMX_PES_RDS 129 +  + #define MAX_DVB_READ_SIZE 9192 + #define MAX_ERR_LEN 160 +  + struct program *dvb_program; + struct program *dvb_stream_program; +  + struct dvb_stream_data_struct; +  + typedef struct { +  int cardn; +  int fefd; +  struct dvb_stream_data_struct *stream; +  char low_errmsg[MAX_ERR_LEN+1]; + } dvb_data; +  + #define DVB ((dvb_data *)Pike_fp->current_storage) + #define THISOBJ (Pike_fp->current_object) +  + typedef struct { +  int fd; +  char low_errmsg[MAX_ERR_LEN+1]; + } dvb_audio_data; +  + #define DVBAudio ((dvb_audio_data *)Pike_fp->current_storage) +  + struct ECMINFO { +  struct ECMINFO *next; +  char *name; +  int system; +  int ecm_pid; +  int id; + }; +  + typedef struct dvb_stream_data_struct { +  dvb_data *parent; +  struct dvb_stream_data_struct *next; +  int fd; +  unsigned int pid; +  unsigned int stype; +  struct dvb_es_packet pkt; +  unsigned int buflen; +  struct svalue fcb; +  struct ECMINFO *ecminfo; +  char low_errmsg[MAX_ERR_LEN+1]; + } dvb_stream_data; +  + #define DVBStream ((dvb_stream_data *)Pike_fp->current_storage) +  + /* internals */ +  + int sl_count(dvb_data *parent) { +  dvb_stream_data *st = parent->stream; +  int cnt = 0; +  +  while(st != NULL) { +  st = st->next; +  cnt++; +  } +  return cnt; +  + } +  + int sl_add(dvb_data *parent, dvb_stream_data *newstream) { +  dvb_stream_data *st = parent->stream; +  +  if(st == NULL) { +  parent->stream = newstream; +  return 1; +  } +  while(st->next != NULL) +  st = st->next; +  st->next = newstream; +  return 1; +  + } +  + int sl_del(dvb_data *parent, dvb_stream_data *oldstream) { +  dvb_stream_data *st = parent->stream, *st1 = NULL; +  +  if(st == NULL) +  return 0; +  while(st != NULL && st != oldstream) { +  st1 = st; +  st = st->next; +  } +  if(st != oldstream) +  return 0; +  if(st1 == NULL) +  parent->stream = st->next; +  else +  st1->next = st->next; +  return 1; +  + } +  + dvb_stream_data *sl_getstream(dvb_data *parent, unsigned int pid) { +  dvb_stream_data *st = parent->stream; +  +  if(st == NULL) +  return 0; +  while(st != NULL && st->pid != pid) +  st = st->next; +  if(st == NULL) +  return 0; +  return st; +  + } +  + static char devname_buf[24]; +  + static INLINE char *mk_devname(int devno, const char *basename) { +  sprintf(devname_buf, "%s%d", basename, devno); /* FIXME: uncorrect for v2.0+ !! */ +  return devname_buf; + } +  +  + /*! @module DVB +  *! +  *! Implements Digital Video Broadcasting interface +  *! +  *! @note +  *! Only Linux version is supported. +  */ +  + /*! @class dvb +  *! +  *! Main class. +  */ +  + /*! @decl void create(int card_number) +  *! +  *! Create a DVB object. +  *! +  *! @param card_number +  *! The number of card equipment. +  *! +  *! @note +  *! The number specifies which device will be opened. +  *! Ie. /dev/ost/demux0, /dev/ost/demux1 ... for +  *! DVB v0.9.4 or /dev/dvb/demux0, /dev/dvb/demux1 ... +  *! for versions 2.0+ +  */ + static void f_create(INT32 args) { +  +  int fefd, devno; +  char *devname; +  +  if(DVB->cardn != -1) +  Pike_error("Create already called!\n"); +  +  devno = 0; +  if(args) { +  if(TYPEOF(Pike_sp[-1]) != T_INT) +  Pike_error("Invalid argument 1, expected int.\n"); +  else +  devno = (u_short)Pike_sp[-1].u.integer; +  } +  +  devname = mk_devname(devno, FRONTENDDEVICE); +  fefd = open (devname, O_RDWR | O_NONBLOCK); +  if (fefd < 0) { +  Pike_error("Opening frontend '%s' failed.\n", devname); +  } +  DVB->fefd = fefd; +  DVB->cardn = devno; +  +  /* Make sure this fd gets closed on exec. */ +  set_close_on_exec(fefd, 1); +  + } /* create */ +  + /* 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 +  +  + /*! @decl mapping|int fe_status() +  *! +  *! Return status of a DVB object's frondend device. +  *! +  *! @returns +  *! The resulting mapping contains the following fields: +  *! @mapping +  *! @member string "power" +  *! If 1 the frontend is powered up and is ready to be used. +  *! @member string "signal" +  *! If 1 the frontend detects a signal above a normal noise level +  *! @member string "lock" +  *! If 1 the frontend successfully locked to a DVB signal +  *! @member string "carrier" +  *! If 1 carrier dectected in signal +  *! @member string "biterbi" +  *! If 1 then lock at viterbi state +  *! @member string "sync" +  *! If 1 then TS sync byte detected +  *! @member string "tuner_lock" +  *! If 1 then tuner has a frequency lock +  *! @endmapping +  */ + static void f_fe_status(INT32 args) { +  +  dvb_data *dvb = DVB; +  uint32_t status; +  int cnt = 0, ret; +  +  pop_n_elems(args); +  THREADS_ALLOW(); +  ret = ioctl(dvb->fefd, FE_READ_STATUS, &status); +  THREADS_DISALLOW(); +  if(ret < 0) +  push_int(0); +  else { +  push_text("signal"); push_int(!!(status & ~FE_HAS_SIGNAL)); +  push_text("carrier"); push_int(!!(status & ~FE_HAS_CARRIER)); +  push_text("viterbi"); push_int(!!(status & ~FE_HAS_VITERBI)); +  push_text("lock"); push_int(!!(status & ~FE_HAS_LOCK)); +  push_text("sync"); push_int(!!(status & ~FE_HAS_SYNC)); +  cnt = 5; +  /*push_text("spectrum_inverse"); push_int(status & ~FE_HAS_SPECTRUM_INV);*/ + #if HAVE_DVB < 30 +  push_text("power"); push_int(!!(status & ~FE_HAS_POWER)); +  push_text("tuner_lock"); push_int(!!(status & ~FE_TUNER_HAS_LOCK)); +  cnt += 2; + #endif +  THREADS_ALLOW(); +  ret = ioctl(dvb->fefd, FE_READ_BER, &status); +  THREADS_DISALLOW(); +  if(ret > -1) { +  push_text("ber"); push_int(status); +  cnt++; +  } +  THREADS_ALLOW(); +  ret = ioctl(dvb->fefd, FE_READ_SNR, &status); +  THREADS_DISALLOW(); +  if(ret > -1) { +  push_text("snr"); push_int(status); +  cnt++; +  } +  THREADS_ALLOW(); +  ret = ioctl(dvb->fefd, FE_READ_SIGNAL_STRENGTH, &status); +  THREADS_DISALLOW(); +  if(ret > -1) { +  push_text("signal_strength"); push_int(status); +  cnt++; +  } +  +  f_aggregate_mapping(2 * cnt); +  } + } +  + /*! @decl mapping fe_info() +  *! +  *! Return info of a frondend device. +  *! +  *! @note +  *! The information heavily depends on driver. Many fields +  *! contain dumb values. +  */ + static void f_fe_info(INT32 args) { +  +  dvb_data *dvb = DVB; +  FrontendInfo info; +  int ret; +  +  pop_n_elems(args); +  THREADS_ALLOW(); +  ret = ioctl(dvb->fefd, FE_GET_INFO, &info); +  THREADS_DISALLOW(); +  if(ret < 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); + #if HAVE_DVB < 30 +  push_text("version"); +  push_int(info.hwVersion); +  f_aggregate_mapping(2 * 2); + #else +  /* FIXME: Where is the version in the new DVB API? */ +  f_aggregate_mapping(1 * 2); + #endif +  f_aggregate_mapping(2 * 3); +  } + } +  + /* 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) { + #if HAVE_DVB < 30 +  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; + #else +  struct dvb_diseqc_master_cmd cmd; +  cmd.msg[0] = 0xe0; /* framing (master, no reply expected, first send) */ +  cmd.msg[1] = 0x10; /* address (any switch) */ +  cmd.msg[2] = 0x38; /* command (set port group 0) */ +  /* param: high nibble: reset bits, low nibble set bits, +  * bits are: option, position, polarizaion, band +  */ +  cmd.msg[3] = 0xF0 | (((sat_no * 4) & 0x0F) +  | (hi_lo?1:0) | (pol?0:2)); +  cmd.msg_len = 4; +  +  if (ioctl (secfd, FE_DISEQC_SEND_MASTER_CMD, &cmd) == -1) { +  /* tone/volt for backwards compatiblity with non-diseqc LNBs */ +  if (ioctl (secfd, FE_SET_VOLTAGE, pol ? SEC_VOLTAGE_13 : SEC_VOLTAGE_18) == -1) +  return 0; +  if (ioctl (secfd, FE_SET_TONE, hi_lo ? SEC_TONE_ON : SEC_TONE_OFF) == -1) +  return 0; +  } + #endif +  return 1; + } +  + static int do_tune(int fefd, uint ifreq, uint sr) + { +  FrontendParameters tuneto; +  FrontendEvent ev; +  struct pollfd pfd; +  int prc, ret; +  +  /* discard stale QPSK events */ +  while (1) { +  THREADS_ALLOW(); +  ret = ioctl (fefd, FE_GET_EVENT, &ev); +  THREADS_DISALLOW(); +  if (ret == -1) +  break; +  } +  +  tuneto.Frequency = ifreq; +  tuneto.u.qpsk.SymbolRate = sr; +  tuneto.u.qpsk.FEC_inner = FEC_AUTO; +  THREADS_ALLOW(); +  ret = ioctl (fefd, FE_SET_FRONTEND, &tuneto); +  THREADS_DISALLOW(); +  if (ret == -1) { +  snprintf (DVB->low_errmsg, MAX_ERR_LEN, "FE_SET_FRONTEND failed.\n"); +  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.\n"); +  return 0; +  } else if (prc == 0) { +  snprintf (DVB->low_errmsg, MAX_ERR_LEN, "FE_GET_EVENT timed out.\n"); +  return 0; +  } +  +  if (ioctl (fefd, FE_GET_EVENT, &ev) == -1) { +  snprintf (DVB->low_errmsg, MAX_ERR_LEN, "FE_GET_EVENT failed.\n"); +  return 0; +  } +  + #if HAVE_DVB < 30 +  if (ev.type != FE_COMPLETION_EV) { +  snprintf (DVB->low_errmsg, MAX_ERR_LEN, "tuning failed\n"); +  return 0; +  } + #else +  if (ev.status != FE_HAS_LOCK) { +  snprintf (DVB->low_errmsg, MAX_ERR_LEN, "tuning failed\n"); +  return 0; +  } + #endif +  +  return 1; + } +  + /*! @decl int tune(int(0..3) lnb, int freq, int(0..1)|string pol, int sr) +  *! +  *! Tunes to apropriate transponder's parameters. +  *! +  *! @param lnb +  *! DiSeQc number of LNB. +  *! +  *! @param freq +  *! Frequency divided by 1000. +  *! +  *! @param pol +  *! Polarization. @expr{0@} or @expr{"v"@} for vertical type, +  *! @expr{1@} or @expr{"h"@} for horizontal one. +  *! +  *! @param sr +  *! The service rate parameter. +  *! +  */ + static void f_zap(INT32 args) { +  dvb_data *dvb = DVB; +  int secfd; +  uint ifreq; +  int hiband, result; +  FrontendInfo fe_info; +  +  int satno; +  uint freq; +  int pol; +  uint sr; +  char *devname; +  +  check_all_args("DVB.dvb->tune", args, BIT_INT, BIT_INT, BIT_INT | BIT_STRING, +  BIT_INT, 0); +  +  sr = (u_short)Pike_sp[-1].u.integer * 1000; +  Pike_sp--; +  +  if(TYPEOF(Pike_sp[-1]) == 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; +  + #if HAVE_DVB < 30 +  devname = mk_devname(dvb->cardn, SECDEVICE); +  secfd = open (devname, O_RDWR); +  /* free(devname); */ +  if (secfd == -1) { +  Pike_error ("opening SEC device failed\n"); +  } + #else +  secfd = dvb->fefd; + #endif +  THREADS_ALLOW(); +  result = ioctl (dvb->fefd, FE_GET_INFO, &fe_info); +  THREADS_DISALLOW(); +  if (result == -1 || fe_info.type != FE_QPSK) { +  close (secfd); +  Pike_error("ioctl on fefd failed\n"); +  } +  +  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 (dvb->fefd, ifreq, sr)) +  result = 1; +  +  close (secfd); +  +  if(!result) +  Pike_error(dvb->low_errmsg); +  +  push_int(result); + } +  + /*! @decl mapping|int get_pids() +  *! +  *! Returns mapping with info of currently tuned program's pids. +  *! +  *! @seealso +  *! @[tune()] +  */ + static void f_get_pids(INT32 args) { +  +  dvb_pid_t pids[5]; +  int cnt = 0, dmx, ret; +  char *devname; +  +  pop_n_elems(args); +  if(!sl_count(DVB)) { +  devname = mk_devname(DVB->cardn, DEMUXDEVICE); +  dmx = open (devname, O_RDWR | O_NONBLOCK); +  /* free(devname); */ +  if (dmx < 0) +  Pike_error("Opening demux failed.\n"); +  } else +  /* FIXME: for which PMT ? */ +  dmx = DVB->stream->fd; +  /* get the current PID settings */ +  THREADS_ALLOW(); +  ret = ioctl(dmx, DMX_GET_PES_PIDS, &pids); +  THREADS_DISALLOW(); +  if (ret) { +  Pike_error("GET PIDS failed.\n"); +  } +  +  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++; +  f_aggregate_mapping( 2 * cnt ); +  } else +  push_int(0); +  if(!sl_count(DVB)) +  close(dmx); + } +  +  +  + /** +  * Set a filter for a DVB stream + **/ + static int SetFilt(int fd,int pid,int tnr) + { +  struct dmxSctFilterParams FilterParams; +  int ret; +  +  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; +  +  THREADS_ALLOW(); +  ret = ioctl(fd,DMX_SET_FILTER,&FilterParams); +  THREADS_DISALLOW(); +  if (ret < 0) { +  snprintf (DVB->low_errmsg, MAX_ERR_LEN, "DMX SET SECTION FILTER.\n"); +  return 0; +  } +  return 1; + } +  + /** +  * Stop a PID filter. + **/ + static int StopFilt(int fd) + { +  int ret; +  THREADS_ALLOW(); +  ret = ioctl(fd,DMX_STOP); +  THREADS_DISALLOW(); +  return (!ret); + } +  +  + /* 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; +  +  THREADS_ALLOW(); +  n = poll(u,1,20000); +  THREADS_DISALLOW(); +  if (n < 0) +  { +  perror("poll error"); +  return -1; +  } +  if (n == 0) +  { +  fprintf(stderr,"timeout\n"); +  return -1; +  } +  +  buffer[0] = 0; +  +  THREADS_ALLOW(); +  n = read(fd,buffer+1,length-1); +  THREADS_DISALLOW(); +  if (n < 0) +  { +  perror("read error"); +  return -1; +  } +  +  if (cks && crc32(buffer+1,n) != 0) +  { +  fprintf(stderr,"crc error\n"); /* FIXME: ??? */ +  continue; +  } +  +  break; +  } +  +  return n+1; + } +  + /*! @decl mapping analyze_pat() +  *! +  *! Return mapping of all PMT. +  *! +  *! sid:prognum +  */ + 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; +  int dmx; +  char *devname; +  +  pop_n_elems(args); +  devname = mk_devname(DVB->cardn, DEMUXDEVICE); +  dmx = open (devname, O_RDWR | O_NONBLOCK); +  if (dmx < 0) { +  snprintf (DVB->low_errmsg, MAX_ERR_LEN, "DMX SET SECTION FILTER.\n"); +  push_int(0); +  return; +  } +  +  /* The PAT is supposed to fit in a 184 bytes packet */ +  SetFilt(dmx,0,0); +  do +  { +  n = read_t(dmx,buffer,sizeof(buffer),1); +  } +  while (n>=2 && (buffer[0]!=0 || buffer[1]!=0)); +  StopFilt(dmx); +  close(dmx); +  +  if (n < 2) { +  push_int(0); +  return; +  } +  +  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); +  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 (dvb_stream_data *st, 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 = NULL; +  + #ifdef DVB_DEBUG +  printf("DEB: dvb: ca_descr:"); +  for (j=0; j<length; j++) printf(" %02x",data[j]); +  printf("\n"); + #endif +  +  /* 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 == NULL) +  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 = st->ecminfo; +  st->ecminfo = e; +  } +  break; +  case VIACCESS_CA_SYSTEM: +  j = 4; +  while (j < length) +  { +  if (data[j]==0x14) +  { +  e = malloc(sizeof(struct ECMINFO)); +  if (e == NULL) +  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 = st->ecminfo; +  st->ecminfo = e; +  } +  j += 2+data[j+1]; +  } +  break; +  case IRDETO_CA_SYSTEM: +  case BETA_CA_SYSTEM: +  e = malloc(sizeof(struct ECMINFO)); +  if (e == NULL) +  return; +  e->system = ca_system; +  e->name = irdeto_name; +  e->ecm_pid = ((data[2] & 0x1f) << 8) | data[3]; +  e->next = st->ecminfo; +  st->ecminfo = e; + /* printf("Found irdeto\n"); */ +  break; +  case NAGRA_CA_SYSTEM: +  e = malloc(sizeof(struct ECMINFO)); +  if (e == NULL) +  return; +  e->system = ca_system; +  e->name = nagra_name; +  e->ecm_pid = ((data[2] & 0x1f) << 8) | data[3]; +  e->next = st->ecminfo; +  st->ecminfo = e; + /* fprintf(stderr,"Found nagra\n"); */ +  break; +  } + #ifdef DVB_DEBUG +  while(e != NULL) +  printf("DEB: dvb: ecminfo: system=%s, ecm_pid=%d, id=%d\n", e->name, +  e->ecm_pid, e->id); + #endif + } +  + /*! @decl array(mapping)|int analyze_pmt(int sid, int prognum) +  *! +  *! Parse PMT table. +  *! +  *! @seealso +  *! @[analyze_pat()] +  */ + static void f_parse_pmt(INT32 args) + { +  unsigned char buffer[4096]; +  unsigned int length,info_len,data_len, index; +  int retries; +  int pid; +  int n; +  +  int pnr = -1; +  +  int program_number; +  int pmt_pid; +  int dmx; +  dvb_stream_data stream; +  char *devname; +  int cnt = 0, arr = 0; +  +  check_all_args("DVB.dvb->analyze_pmt", args, BIT_INT, BIT_INT, 0); +  +  devname = mk_devname(DVB->cardn, DEMUXDEVICE); +  dmx = open (devname, O_RDWR | O_NONBLOCK); +  if (dmx < 0) { +  snprintf (DVB->low_errmsg, MAX_ERR_LEN, "DMX SET SECTION FILTER.\n"); +  push_int(0); +  return; +  } +  +  pmt_pid = (u_short)Pike_sp[-1].u.integer; +  Pike_sp--; +  +  program_number = (u_short)Pike_sp[-1].u.integer; +  Pike_sp--; +  +  SetFilt(dmx,pmt_pid,2); +  +  for (retries=0; retries<100; retries++) +  { +  do +  { +  n = read_t(dmx,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(dmx); +  close(dmx); +  +  if (pnr != program_number) +  { + /* fprintf(stderr, "Can't find PMT entry\n"); */ +  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(&stream, &buffer[index+2], buffer[index+1]); +  +  info_len -= 2+buffer[index+1]; +  index += 2+buffer[index+1]; +  } +  +  while (index < length-4) +  { +  cnt = 0; +  pid = ((buffer[index+1] & 0x1f) << 8) + buffer[index+2]; +  push_text("pid"); push_int(pid); cnt++; +  +  switch(buffer[index]) { +  case 2: +  push_text("type"); push_int(DMX_PES_VIDEO); cnt++; +  push_text("desc"); push_text("video"); cnt++; +  break; +  case 3: +  case 4: +  push_text("type"); push_int(DMX_PES_AUDIO); cnt++; +  push_text("desc"); push_text("audio"); cnt++; +  break; +  case 6: +  push_text("type"); push_int(DMX_PES_TELETEXT); cnt++; +  push_text("desc"); push_text("teletext"); cnt++; +  break; +  case 129: +  push_text("type"); push_int(_DMX_PES_RDS); cnt++; +  push_text("desc"); push_text("_rds"); cnt++; +  break; +  default: +  push_text("unknown_type"); push_int(buffer[index]); cnt++; +  push_text("desc"); push_text("unknown"); cnt++; +  } +  +  data_len = ((buffer[index+3] & 0x0F) << 8) + buffer[index+4]; +  if (buffer[index]==0x02 || buffer[index]==0x03 || buffer[index]==0x04) +  { +  unsigned int i = index+5; +  while (i < index+5+data_len) +  { +  switch (buffer[i]) +  { +  case 0x0a: +  if (buffer[index]==3 || buffer[index]==4) { +  push_text("lang"); +  push_string(make_shared_binary_string(&buffer[i+2], 3)); cnt++; +  } +  break; +  case 0x09: +  ParseCADescriptor(&stream, &buffer[i+2],buffer[i+1]); +  break; +  } +  i += 2 + buffer[i+1]; +  } +  } +  f_aggregate_mapping( 2 * cnt ); +  arr++; +  index += 5 + data_len; +  } +  +  if(arr) { +  push_array(aggregate_array( arr )); +  } else +  push_int(0); + } +  + #define PID_NONE 65535 +  + /*! @decl DVB.Stream stream(int pid,int|function rcb,int ptype) +  *! @decl DVB.Stream stream(int pid,int|function rcb) +  *! @decl DVB.Stream stream(int pid) +  *! +  *! Create a new stream reader object for PID. +  *! +  *! @param pid +  *! PID of stream. +  *! +  *! @param rcb +  *! Callback function called whenever there is the data to read +  *! from stream. Only for nonblocking mode. +  *! +  *! @param ptype +  *! Type of payload data to read. By default, audio data is fetched. +  *! +  *! @note +  *! Setting async callback doesn't set the object to nonblocking state. +  *! +  *! @seealso +  *! @[DVB.Stream()->read()] +  */ + static void f_stream_attach(INT32 args) { +  +  int err, ptype = PID_NONE; +  unsigned int pid; +  struct svalue feeder; +  unsigned char *pktdata; +  +  check_all_args("DVB.dvb->stream", args, BIT_INT, +  BIT_FUNCTION | BIT_INT | BIT_VOID, BIT_INT | BIT_VOID, 0); +  +  if(sl_count(DVB) >= MAX_PES_FD) +  Pike_error("Max opened DEMUX devices reached.\n"); +  +  if(args > 2) { +  ptype = (u_short)Pike_sp[-1].u.integer; +  Pike_sp--; +  } +  if(args > 1) { + #if 0 +  feeder = Pike_sp[1-args].u.svalue; +  apply_svalue(&feeder, 0); /* we want more data */ + #endif +  Pike_sp--; +  } +  pid = (u_short)Pike_sp[-1].u.integer; +  Pike_sp--; +  +  if(sl_getstream(DVB, pid) != NULL) { +  push_int(0); /* PID already attached */ +  return; +  } +  +  ref_push_object( Pike_fp->current_object ); /* dvb */ +  push_int( pid ); +  push_int(0); /* func */ +  push_int(ptype); +  push_object( clone_object(dvb_stream_program, 4 ) ); +  +  if(TYPEOF(Pike_sp[-1]) != PIKE_T_OBJECT) +  Pike_error("Failed to create Stream object!\n"); +  + } +  + static void f__sprintf(INT32 args) { +  +  int n = 0, x, cnt; +  dvb_stream_data *st = DVB->stream; +  +  check_all_args("DVB.dvb->_sprintf", args, BIT_INT, BIT_MAPPING | BIT_VOID, 0); +  +  x = Pike_sp[-args].u.integer; +  pop_n_elems(args); +  switch (x) { +  case 'O': +  n++; push_text("DVB.dvb("); +  n++; push_text(mk_devname(DVB->cardn, DEMUXDEVICE)); +  n++; push_text(": "); +  cnt = 0; +  while(st != NULL) { +  n++; push_int(st->pid); +  n++; push_text("/"); +  n++; switch(st->stype) { +  case DMX_PES_AUDIO: push_text("a"); break; +  case DMX_PES_VIDEO: push_text("v"); break; +  case DMX_PES_TELETEXT: push_text("t"); break; +  case DMX_PES_SUBTITLE: push_text("s"); break; +  case DMX_PES_OTHER: push_text("o"); break; +  default: push_text("?"); +  } +  cnt++; +  if(cnt < sl_count(DVB)) { +  n++; push_text(","); +  } +  st = st->next; +  } +  n++; push_text(")"); +  f_add(n); +  return; +  default: +  push_int(0); +  return; +  } + } +  + /*! @endclass +  */ +  + /*! @class Stream +  *! +  *! Represents an elementary data stream (PES). +  */ +  + /* @decl int set_buffer(int len) +  * +  * Sets stream's internal buffer. +  * +  * @note +  * The size is 4096 by default. +  * +  * @seealso +  * @[read()] +  */ + static void f_stream_set_buffer(INT32 args) { +  +  int buflen; +  +  check_all_args("DVB.Stream->set_buffer", args, BIT_INT, 0); +  buflen = (u_short)Pike_sp[-1].u.integer; +  Pike_sp--; +  DVBStream->buflen = buflen; +  push_int(1); + } +  +  +  + static void f_stream_create(INT32 args) { +  +  struct dmxPesFilterParams pesflt; +  int err, pid, fd, ix, ptype; +  struct svalue feeder; +  unsigned char *pktdata; +  struct object *dvbprog; +  dvb_data *dvbstor; +  char *devname; +  +  check_all_args("DVB.dvb->stream", args, BIT_OBJECT, BIT_INT, +  BIT_FUNCTION | BIT_INT, BIT_INT, 0); +  +  ptype = (u_short)Pike_sp[-1].u.integer; +  Pike_sp--; +  if(ptype == PID_NONE) +  ptype = DMX_PES_OTHER; +  + #if 0 +  feeder = Pike_sp[1-args].u.svalue; +  apply_svalue(&feeder, 0); /* we want more data */ + #endif +  Pike_sp--; +  +  pid = (u_short)Pike_sp[-1].u.integer; +  Pike_sp--; +  +  dvbprog = Pike_sp[-1].u.object; +  Pike_sp--; +  if( !dvbprog || !(dvbstor = (dvb_data *)get_storage( dvbprog, dvb_program )) ) +  Pike_error("This class cannot be instantiated directly\n"); +  +  devname = mk_devname(DVB->cardn, DEMUXDEVICE); +  fd = open (devname, O_RDWR /*| O_NONBLOCK*/); +  if (fd < 0) { +  Pike_error("Opening DEMUX failed.\n"); +  } +  pesflt.pid = pid; +  pesflt.input = DMX_IN_FRONTEND; +  pesflt.output = DMX_OUT_TAP; +  pesflt.pesType = ptype; +  pesflt.flags = DMX_IMMEDIATE_START; + #ifdef DVB_DEBUG +  printf("DEB: dvb: set_pes: PID=%d, type=%d\n", pid, ptype); + #endif +  THREADS_ALLOW(); +  err = ioctl(fd, DMX_SET_PES_FILTER, &pesflt); +  THREADS_DISALLOW(); +  if (err < 0) +  Pike_error("seting PID failed.\n"); +  +  if((pktdata = malloc(DVBStream->buflen)) == NULL) +  Pike_error("Internal error: can't malloc buffer.\n"); + #if 0 +  if(init_p2p(&DVBStream->p, 2048)) +  Pike_error("Internal error: repack size %d is out of range\n", 2048); + #endif +  DVBStream->parent = dvbstor; +  DVBStream->fd = fd; +  DVBStream->pid = pid; +  DVBStream->stype = ptype; +  DVBStream->pkt.payload = pktdata; +  DVBStream->pkt.payload_len = 0; +  /*DVB->pesfcb[ix] = NULL;*/ +  /*fcntl(DVBStream->fd, F_SETFL, O_NONBLOCK);*/ + #if 0 +  push_int(1); + #else +  if(sl_add(dvbstor, DVBStream)) +  push_int(1); +  else +  push_int(0); + #endif +  + } +  + /*! @decl int destroy() +  *! +  *! Purge a stream reader. +  *! +  *! @seealso +  *! @[DVB.dvb()->stream()], @[read()] +  */ + static void f_stream_detach(INT32 args) { +  +  pop_n_elems(args); +  close(DVBStream->fd); + #ifdef DVB_DEBUG +  printf("DEB: dvb: stream_detach: pid=%d detached OK\n", DVBStream->pid); + #endif +  DVBStream->pid = 0; +  DVBStream->fd = -1; +  if(DVBStream->pkt.payload != NULL) +  free(DVBStream->pkt.payload); +  DVBStream->pkt.payload = NULL; +  push_int(1); +  + } +  + /*! @decl string|int read() +  *! +  *! Read data from a stream. It reads up to read buffer size data. +  *! +  *! @note +  *! Read buffer size is 4096 by default. +  *! +  *! @seealso +  *! @[DVB.dvb()->stream()], @[close()] +  */ + static void f_stream_read(INT32 args) { +  +  dvb_stream_data *dvb_stream = DVBStream; +  int all = 1, ret, e, cnt, ix = 0; +  char buf[MAX_DVB_READ_SIZE], *bufptr; +  +  if(dvb_stream->fd < 0) +  Pike_error("Object destroyed!\n"); +  +  check_all_args("DVB.dvb->stream_read", args, BIT_INT | BIT_VOID, 0); +  if(args > 1) +  all = (u_short)Pike_sp[-1].u.integer; +  pop_n_elems(args); +  +  if(dvb_stream->pkt.payload_len > 0) +  memcpy(buf, dvb_stream->pkt.payload, dvb_stream->pkt.payload_len); +  for(;;) { +  e = 0; +  THREADS_ALLOW(); +  ret = read(dvb_stream->fd, buf + dvb_stream->pkt.payload_len, +  dvb_stream->buflen - dvb_stream->pkt.payload_len); +  e = errno; /* check_threads_etc may effect errno */ +  THREADS_DISALLOW(); +  +  /* check_threads_etc(); */ +  +  if (ret > 0) { +  ret += dvb_stream->pkt.payload_len; +  break; +  } +  if (ret == -1 && (e == EAGAIN || e == EINTR)) { +  push_int(0); +  return; +  } + #if 0 +  if (!(ret == 0) || (ret == -1 && (e == EAGAIN || e == EINTR))) { + #ifdef DEBUG +  printf("DEB: dvb: stream_read: errno=%d [%s]\n", e, strerror(e)); + #endif +  push_int(-e); +  return; +  } + #endif +  } +  +  if(ret > 0) { +  bufptr = buf; +  while((cnt = dvb_pes2es(bufptr,ret,&dvb_stream->pkt, 0xC0)) > 0) { + #ifdef DVB_DEBUG +  /* printf("DEB: dvb: PID(%d): cnt=%d (ix: %d): pkt.len=%d (skipped: %d)\n", dvb_stream->pid, cnt, ix, dvb_stream->pkt.payload_len, dvb_stream->pkt.skipped); */ +  if(dvb_stream->pkt.skipped) +  printf("PID(%d): skipped: %d\n", dvb_stream->pid, dvb_stream->pkt.skipped); + #endif +  push_string(make_shared_binary_string((char *)dvb_stream->pkt.payload, +  dvb_stream->pkt.payload_len)); +  dvb_stream->pkt.payload_len = 0; /* clear internall buffer */ +  ix++; +  bufptr += cnt; +  ret -= cnt; +  if(ret < 1) +  break; +  } +  if(ix) +  f_add(ix); +  if(ret && ix) { +  /* some unprocessed data remain in buf */ +  memcpy(dvb_stream->pkt.payload, bufptr, ret); +  dvb_stream->pkt.payload_len = ret; +  } + #ifdef DVB_DEBUG +  printf("DEB: dvb: ret=%d (ix: %d)\n", ret, ix); + #endif +  return; +  } +  push_int(0); +  + } +  + static void f_stream_info(INT32 args) { +  +  check_all_args("DVB.dvb->stream_info", args, BIT_INT, 0); +  pop_n_elems(args); +  push_int(0); +  + } +  + /*! @decl void close() +  *! +  *! Closes an open stream. +  *! +  *! @seealso +  *! @[read()] +  */ + static void f_stream_close(INT32 args) { +  if(DVBStream->fd != -1) { +  close(DVBStream->fd); +  if(DVBStream->pkt.payload != NULL) +  free(DVBStream->pkt.payload); +  } +  DVBStream->fd = -1; +  pop_n_elems(args); +  push_int(0); + } +  + /*! @endclass +  */ +  + /*! @class Audio +  *! +  *! Object for controlling an audio subsystem on full featured cards. +  */ +  + /*! @decl void create(int card_number) +  *! @decl void create() +  *! +  *! Create a Audio object. +  *! +  *! @param card_number +  *! The number of card equipment. +  */ + static void f_audio_create(INT32 args) { +  char *devname; +  int devno = 0; +  +  if(DVBAudio->fd != -1) +  Pike_error("Create already called!\n"); +  +  if(args) { +  if(TYPEOF(Pike_sp[-1]) != T_INT) +  Pike_error("Invalid argument 1, expected int.\n"); +  else +  devno = (u_short)Pike_sp[-1].u.integer; +  } +  pop_n_elems(args); +  devname = mk_devname(devno, AUDIODEVICE); +  DVBAudio->fd = open( devname, O_RDWR ); +  if (DVBAudio->fd < 0) { +  DVB->cardn = -1; +  Pike_error("Opening audio device failed.\n"); +  } + } +  +  + /*! @decl int mute(int mute) +  *! @decl int mute() +  *! +  *! Mute or unmute audio device. +  *! +  *| @seealso +  *| @[mixer()] +  */ + static void f_audio_mute(INT32 args) { +  +  dvb_audio_data *dvb_audio = DVBAudio; +  int mute = 1; /* default is mute = on */ +  int ret; +  +  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--; +  } +  +  THREADS_ALLOW(); +  ret = ioctl(dvb_audio->fd, AUDIO_SET_MUTE, mute); +  THREADS_DISALLOW(); +  if(ret < 0) +  push_int(0); +  else +  push_int(1); +  + } +  + /*! @decl mapping status() +  *! +  *! Returns mapping of current audio device status. +  */ + static void f_audio_status(INT32 args) { +  +  dvb_audio_data *dvb_audio = DVBAudio; +  int ret; +  audioStatus_t status; +  +  pop_n_elems(args); +  THREADS_ALLOW(); +  ret = ioctl(dvb_audio->fd, AUDIO_GET_STATUS, &status); +  THREADS_DISALLOW(); +  if(ret < 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 ); +  } +  + } +  + static void f_audio_ctrl(INT32 args) { +  +  dvb_audio_data *dvb_audio = DVBAudio; +  int ret; +  int cw = -1; +  +  check_all_args("DVB.dvb->ctrl", args, BIT_INT | BIT_STRING, 0); +  +  if(TYPEOF(Pike_sp[-1]) == 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; +  } +  +  THREADS_ALLOW(); +  ret = ioctl(dvb_audio->fd, cw); +  THREADS_DISALLOW(); +  if(ret < 0) +  push_int(0); +  else +  push_int(1); +  + } +  + /*! @decl int mixer(int left, int right) +  *! @decl int mixer(int both) +  *! +  *! Sets output level on DVB audio device. +  *! +  *| @seealso +  *| @[mute()] +  */ + static void f_audio_mixer(INT32 args) { +  +  dvb_audio_data *dvb_audio = DVBAudio; +  int ret; +  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; +  +  THREADS_ALLOW(); +  ret = ioctl(dvb_audio->fd, AUDIO_SET_MIXER, &mixer); +  THREADS_DISALLOW(); +  if(ret < 0) +  Pike_error("Seting mixer failed.\n"); +  else +  push_int(1); +  + } + /*! @endclass +  */ +  + /*! @endmodule +  */ +  + static void init_dvb_data(struct object *obj) { +  +  unsigned int i; +  +  DVB->cardn = -1; +  DVB->stream = NULL; +  memset(&DVB->low_errmsg, '\0', sizeof(DVB->low_errmsg)); + } +  + static void exit_dvb_stream(struct object *obj); + static void exit_dvb_data(struct object *obj) { +  +  dvb_stream_data *s; +  +  if(DVB->cardn != -1) { +  close(DVB->fefd); +  s = DVB->stream; +  while (s != NULL) { +  s = s->next; +  exit_dvb_stream((struct object *)s); +  } +  } + } +  + static void init_dvb_audio(struct object *obj) { +  DVBAudio->fd = -1; +  memset(&DVBAudio->low_errmsg, '\0', sizeof(DVBAudio->low_errmsg)); + } +  + static void exit_dvb_audio(struct object *obj) { +  if(DVBAudio->fd != -1) +  close(DVBAudio->fd); + } +  + static void init_dvb_stream(struct object *obj) { +  +  DVBStream->parent = NULL; +  DVBStream->next = NULL; +  DVBStream->fd = -1; +  DVBStream->pid = 0; +  DVBStream->pkt.payload = NULL; +  DVBStream->buflen = MAX_DVB_READ_SIZE; +  DVBStream->ecminfo = NULL; +  memset(&DVBStream->low_errmsg, '\0', sizeof(DVBStream->low_errmsg)); + } +  +  + static void exit_dvb_stream(struct object *obj) { +  +  struct ECMINFO *e; +  unsigned int i; +  +  sl_del(DVBStream->parent, DVBStream); +  if(DVBStream->fd != -1) { +  close(DVBStream->fd); +  if(DVBStream->pkt.payload != NULL) +  free(DVBStream->pkt.payload); +  } +  if(DVBStream->ecminfo != NULL) +  do { +  e = DVBStream->ecminfo->next; +  free(DVBStream->ecminfo); +  DVBStream->ecminfo = e; +  } while (e != NULL); +  + } +  + /* +  * --------------------- +  * Pike module API +  * --------------------- +  */ +  + 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_TELETEXT", DMX_PES_TELETEXT, 0); +  add_integer_constant("MUX_SUBTITLE", DMX_PES_SUBTITLE, 0); +  add_integer_constant("MUX_PCR", DMX_PES_PCR, 0); +  add_integer_constant("MUX_OTHER", DMX_PES_OTHER, 0); +  add_integer_constant("MUX__RDS", _DMX_PES_RDS, 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); +  +  /* dvb */ +  start_new_program(); +  ADD_STORAGE(dvb_data); +  set_init_callback(init_dvb_data); +  set_exit_callback(exit_dvb_data); +  +  add_function("create", f_create, "function(int|void:void)", 0); +  add_function("_sprintf", f__sprintf, "function(int,mapping|void:mixed)", 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); +  +  /* Frontend */ +  add_function("fe_status", f_fe_status, "function(:mapping|int)", 0); +  add_function("fe_info", f_fe_info, "function(:mapping|int)", 0); +  +  add_function("stream", f_stream_attach, "function(int,function|int|void,int|void:object)", 0); +  +  dvb_program = end_program(); +  add_program_constant("dvb", dvb_program, 0); +  +  /* PES streams */ +  start_new_program(); +  ADD_STORAGE(dvb_stream_data); +  set_init_callback(init_dvb_stream); +  set_exit_callback(exit_dvb_stream); +  +  add_function("create", f_stream_create, "function(object,int,function|int,int:void)", 0); +  add_function("destroy", f_stream_detach, "function(void:void)", 0); +  add_function("read", f_stream_read, "function(int|void:string|int)", 0); +  add_function("set_buffer", f_stream_set_buffer, "function(int:int)", 0); +  add_function("info", f_stream_info, "function(int:mapping|int)", 0); +  add_function("close", f_stream_info, "function(:void)", 0); +  +  dvb_stream_program = end_program(); +  add_program_constant("Stream", dvb_stream_program, 0); +  +  /* Audio */ +  start_new_program(); +  ADD_STORAGE(dvb_audio_data); +  set_init_callback(init_dvb_audio); +  set_exit_callback(exit_dvb_audio); +  +  add_function("create", f_audio_create, "function(int|void:void)", 0); +  add_function("mute", f_audio_mute, "function(int|void:int)", 0); +  add_function("status", f_audio_status, "function(:mapping|int)", 0); +  add_function("ctrl", f_audio_ctrl, "function(int|string:int)", 0); +  add_function("mixer", f_audio_mixer, "function(int,int|void:int)", 0); +  +  end_class("Audio", 0); +  + } /* PIKE_MODULE_INIT */ +  + PIKE_MODULE_EXIT { +  +  if(dvb_stream_program) { +  free_program(dvb_stream_program); +  dvb_stream_program = NULL; +  } +  if(dvb_program) { +  free_program(dvb_program); +  dvb_program = NULL; +  } + } /* PIKE_MODULE_EXIT */ +  + #else +  + #include "program.h" + #include "module_support.h" +  + PIKE_MODULE_INIT { +  if(!TEST_COMPAT(7,6)) +  HIDE_MODULE(); + } +  + PIKE_MODULE_EXIT { + } +  + #endif +    Newline at end of file added.