aboutsummaryrefslogtreecommitdiffstats
path: root/util/zap
diff options
context:
space:
mode:
Diffstat (limited to 'util/zap')
-rw-r--r--util/zap/Makefile20
-rw-r--r--util/zap/zap.c226
-rw-r--r--util/zap/zap_ca.c198
-rw-r--r--util/zap/zap_ca.h37
-rw-r--r--util/zap/zap_dvb.c353
-rw-r--r--util/zap/zap_dvb.h41
6 files changed, 875 insertions, 0 deletions
diff --git a/util/zap/Makefile b/util/zap/Makefile
new file mode 100644
index 0000000..35e0c6d
--- /dev/null
+++ b/util/zap/Makefile
@@ -0,0 +1,20 @@
+# Makefile for linuxtv.org dvb-apps/util/zap
+
+objects = zap_ca.o \
+ zap_dvb.o
+
+binaries = zap
+
+inst_bin = $(binaries)
+
+CPPFLAGS += -I../../lib
+LDFLAGS += -L../../lib/libdvbapi -L../../lib/libdvbsec -L../../lib/libdvbcfg -L../../lib/libdvben50221 -L../../lib/libucsi
+LDLIBS += -ldvbcfg -ldvben50221 -ldvbsec -ldvbapi -lucsi -lpthread
+
+.PHONY: all
+
+all: $(binaries)
+
+$(binaries): $(objects)
+
+include ../../Make.rules
diff --git a/util/zap/zap.c b/util/zap/zap.c
new file mode 100644
index 0000000..6f3df33
--- /dev/null
+++ b/util/zap/zap.c
@@ -0,0 +1,226 @@
+/*
+ ZAP 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 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 Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with this library; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 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 "zap_dvb.h"
+#include "zap_ca.h"
+
+
+static void signal_handler(int _signal);
+
+static int quit_app = 0;
+
+void usage(void)
+{
+ static const char *_usage = "\n"
+ " ZAP: A zapping application\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: zap <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"
+ " -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 moveca = 1;
+ int argpos = 1;
+ struct zap_dvb_params zap_dvb_params;
+ struct zap_ca_params zap_ca_params;
+
+ 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], "-nomoveca")) {
+ moveca = 0;
+ argpos++;
+ } else {
+ if ((argc - argpos) != 1)
+ usage();
+ channel_name = argv[argpos];
+ argpos++;
+ }
+ }
+
+ // the user didn't select anything!
+ if (channel_name == NULL)
+ usage();
+
+ // setup any signals
+ signal(SIGINT, signal_handler);
+ signal(SIGPIPE, SIG_IGN);
+
+ // start the CA stuff
+ zap_ca_params.adapter_id = adapter_id;
+ zap_ca_params.caslot_num = caslot_num;
+ zap_ca_params.moveca = moveca;
+ zap_ca_start(&zap_ca_params);
+
+ // find the requested channel
+ if (strlen(channel_name) >= sizeof(zap_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(zap_dvb_params.channel.name, channel_name, strlen(channel_name) + 1);
+ if (dvbcfg_zapchannel_parse(channel_file, find_channel, &zap_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) && (zap_dvb_params.channel.fe_type == DVBFE_TYPE_DVBS))
+ secid = "UNIVERSAL";
+
+ // look it up if one were supplied
+ zap_dvb_params.valid_sec = 0;
+ if (secid != NULL) {
+ if (dvbsec_cfg_find(secfile, secid,
+ &zap_dvb_params.sec)) {
+ fprintf(stderr, "Unable to find suitable sec/lnb configuration for channel\n");
+ exit(1);
+ }
+ zap_dvb_params.valid_sec = 1;
+ }
+
+ // open the frontend
+ zap_dvb_params.fe = dvbfe_open(adapter_id, frontend_id, 0);
+ if (zap_dvb_params.fe == NULL) {
+ fprintf(stderr, "Failed to open frontend\n");
+ exit(1);
+ }
+
+ // start the DVB stuff
+ zap_dvb_params.adapter_id = adapter_id;
+ zap_dvb_params.frontend_id = frontend_id;
+ zap_dvb_params.demux_id = demux_id;
+ zap_dvb_start(&zap_dvb_params);
+
+ // the UI
+ while(!quit_app) {
+ sleep(1);
+ }
+
+ // shutdown DVB stuff
+ if (channel_name != NULL)
+ zap_dvb_stop();
+
+ // shutdown CA stuff
+ zap_ca_stop();
+
+ // done
+ exit(0);
+}
+
+static void signal_handler(int _signal)
+{
+ (void) _signal;
+
+ if (!quit_app) {
+ quit_app = 1;
+ }
+}
diff --git a/util/zap/zap_ca.c b/util/zap/zap_ca.c
new file mode 100644
index 0000000..b78fdcf
--- /dev/null
+++ b/util/zap/zap_ca.c
@@ -0,0 +1,198 @@
+/*
+ ZAP utility CA functions
+
+ 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 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 Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with this library; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+*/
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <sys/poll.h>
+#include <pthread.h>
+#include <libdvben50221/en50221_stdcam.h>
+#include "zap_ca.h"
+
+
+static int zap_ca_info_callback(void *arg, uint8_t slot_id, uint16_t session_number, uint32_t ca_id_count, uint16_t *ca_ids);
+static int zap_ai_callback(void *arg, uint8_t slot_id, uint16_t session_number,
+ uint8_t application_type, uint16_t application_manufacturer,
+ uint16_t manufacturer_code, uint8_t menu_string_length,
+ uint8_t *menu_string);
+static void *camthread_func(void* arg);
+
+static struct en50221_transport_layer *tl = NULL;
+static struct en50221_session_layer *sl = NULL;
+static struct en50221_stdcam *stdcam = NULL;
+
+static int ca_resource_connected = 0;
+
+static int camthread_shutdown = 0;
+static pthread_t camthread;
+static int seenpmt = 0;
+static int moveca = 0;
+
+void zap_ca_start(struct zap_ca_params *params)
+{
+ // create transport layer
+ tl = en50221_tl_create(1, 16);
+ if (tl == NULL) {
+ fprintf(stderr, "Failed to create transport layer\n");
+ return;
+ }
+
+ // create session layer
+ sl = en50221_sl_create(tl, 16);
+ if (sl == NULL) {
+ fprintf(stderr, "Failed to create session layer\n");
+ en50221_tl_destroy(tl);
+ return;
+ }
+
+ // create the stdcam instance
+ stdcam = en50221_stdcam_create(params->adapter_id, params->caslot_num, tl, sl);
+ if (stdcam == NULL) {
+ en50221_sl_destroy(sl);
+ en50221_tl_destroy(tl);
+ return;
+ }
+
+ // hook up the AI callbacks
+ if (stdcam->ai_resource) {
+ en50221_app_ai_register_callback(stdcam->ai_resource, zap_ai_callback, stdcam);
+ }
+
+ // hook up the CA callbacks
+ if (stdcam->ca_resource) {
+ en50221_app_ca_register_info_callback(stdcam->ca_resource, zap_ca_info_callback, stdcam);
+ }
+
+ // any other stuff
+ moveca = params->moveca;
+
+ // start the cam thread
+ pthread_create(&camthread, NULL, camthread_func, NULL);
+}
+
+void zap_ca_stop(void)
+{
+ if (stdcam == NULL)
+ return;
+
+ // shutdown the cam thread
+ camthread_shutdown = 1;
+ pthread_join(camthread, NULL);
+
+ // destroy session layer
+ en50221_sl_destroy(sl);
+
+ // destroy transport layer
+ en50221_tl_destroy(tl);
+
+ // destroy the stdcam
+ if (stdcam->destroy)
+ stdcam->destroy(stdcam, 1);
+}
+
+int zap_ca_new_pmt(struct mpeg_pmt_section *pmt)
+{
+ uint8_t capmt[4096];
+ int size;
+
+ if (stdcam == NULL)
+ return -1;
+
+ if (ca_resource_connected) {
+ fprintf(stderr, "Received new PMT - sending to CAM...\n");
+
+ // translate it into a CA PMT
+ int listmgmt = CA_LIST_MANAGEMENT_ONLY;
+ if (seenpmt) {
+ listmgmt = CA_LIST_MANAGEMENT_UPDATE;
+ }
+ seenpmt = 1;
+
+ if ((size = en50221_ca_format_pmt(pmt, capmt, sizeof(capmt), moveca, listmgmt,
+ CA_PMT_CMD_ID_OK_DESCRAMBLING)) < 0) {
+ fprintf(stderr, "Failed to format PMT\n");
+ return -1;
+ }
+
+ // set it
+ if (en50221_app_ca_pmt(stdcam->ca_resource, stdcam->ca_session_number, capmt, size)) {
+ fprintf(stderr, "Failed to send PMT\n");
+ return -1;
+ }
+
+ // we've seen this PMT
+ return 1;
+ }
+
+ return 0;
+}
+
+void zap_ca_new_dvbtime(time_t dvb_time)
+{
+ if (stdcam == NULL)
+ return;
+
+ if (stdcam->dvbtime)
+ stdcam->dvbtime(stdcam, dvb_time);
+}
+
+static void *camthread_func(void* arg)
+{
+ (void) arg;
+
+ while(!camthread_shutdown) {
+ stdcam->poll(stdcam);
+ }
+
+ return 0;
+}
+
+static int zap_ai_callback(void *arg, uint8_t slot_id, uint16_t session_number,
+ uint8_t application_type, uint16_t application_manufacturer,
+ uint16_t manufacturer_code, uint8_t menu_string_length,
+ uint8_t *menu_string)
+{
+ (void) arg;
+ (void) slot_id;
+ (void) session_number;
+
+ printf("CAM Application type: %02x\n", application_type);
+ printf("CAM Application manufacturer: %04x\n", application_manufacturer);
+ printf("CAM Manufacturer code: %04x\n", manufacturer_code);
+ printf("CAM Menu string: %.*s\n", menu_string_length, menu_string);
+
+ return 0;
+}
+
+static int zap_ca_info_callback(void *arg, uint8_t slot_id, uint16_t session_number, uint32_t ca_id_count, uint16_t *ca_ids)
+{
+ (void) arg;
+ (void) slot_id;
+ (void) session_number;
+
+ printf("CAM supports the following ca system ids:\n");
+ uint32_t i;
+ for(i=0; i< ca_id_count; i++) {
+ printf(" 0x%04x\n", ca_ids[i]);
+ }
+ ca_resource_connected = 1;
+ return 0;
+}
diff --git a/util/zap/zap_ca.h b/util/zap/zap_ca.h
new file mode 100644
index 0000000..5df45fd
--- /dev/null
+++ b/util/zap/zap_ca.h
@@ -0,0 +1,37 @@
+/*
+ ZAP utility CA functions
+
+ 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 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 Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with this library; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+*/
+
+#ifndef ZAP_CA_H
+#define ZAP_CA_H 1
+
+struct zap_ca_params {
+ int adapter_id;
+ int caslot_num;
+ int moveca;
+};
+
+extern void zap_ca_start(struct zap_ca_params *params);
+extern void zap_ca_stop(void);
+
+extern int zap_ca_new_pmt(struct mpeg_pmt_section *pmt);
+extern void zap_ca_new_dvbtime(time_t dvb_time);
+
+#endif
diff --git a/util/zap/zap_dvb.c b/util/zap/zap_dvb.c
new file mode 100644
index 0000000..677e05e
--- /dev/null
+++ b/util/zap/zap_dvb.c
@@ -0,0 +1,353 @@
+/*
+ ZAP utility DVB functions
+
+ 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 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 Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with this library; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+*/
+
+#include <stdio.h>
+#include <unistd.h>
+#include <limits.h>
+#include <string.h>
+#include <signal.h>
+#include <pthread.h>
+#include <sys/poll.h>
+#include <libdvbapi/dvbdemux.h>
+#include <libucsi/section.h>
+#include <libucsi/mpeg/section.h>
+#include <libucsi/dvb/section.h>
+#include "zap_dvb.h"
+#include "zap_ca.h"
+
+#define FE_STATUS_PARAMS (DVBFE_INFO_LOCKSTATUS|DVBFE_INFO_SIGNAL_STRENGTH|DVBFE_INFO_BER|DVBFE_INFO_SNR|DVBFE_INFO_UNCORRECTED_BLOCKS)
+
+static int dvbthread_shutdown = 0;
+static pthread_t dvbthread;
+
+static int pat_version = -1;
+static int ca_pmt_version = -1;
+
+static void *dvbthread_func(void* arg);
+
+static void process_pat(int pat_fd, struct zap_dvb_params *params, int *pmt_fd, struct pollfd *pollfd);
+static void process_tdt(int tdt_fd);
+static void process_pmt(int pmt_fd, struct zap_dvb_params *params);
+static int create_section_filter(int adapter, int demux, uint16_t pid, uint8_t table_id);
+
+
+int zap_dvb_start(struct zap_dvb_params *params)
+{
+ pthread_create(&dvbthread, NULL, dvbthread_func, (void*) params);
+ return 0;
+}
+
+void zap_dvb_stop(void)
+{
+ dvbthread_shutdown = 1;
+ pthread_join(dvbthread, NULL);
+}
+
+static void *dvbthread_func(void* arg)
+{
+ int tune_state = 0;
+ int pat_fd = -1;
+ int pmt_fd = -1;
+ int tdt_fd = -1;
+ struct pollfd pollfds[3];
+
+ struct zap_dvb_params *params = (struct zap_dvb_params *) arg;
+
+ // create PAT filter
+ if ((pat_fd = create_section_filter(params->adapter_id, params->demux_id,
+ TRANSPORT_PAT_PID, stag_mpeg_program_association)) < 0) {
+ fprintf(stderr, "Failed to create PAT section filter\n");
+ exit(1);
+ }
+ pollfds[0].fd = pat_fd;
+ pollfds[0].events = POLLIN|POLLPRI|POLLERR;
+
+ // create TDT filter
+ if ((tdt_fd = create_section_filter(params->adapter_id, params->demux_id, TRANSPORT_TDT_PID, stag_dvb_time_date)) < 0) {
+ fprintf(stderr, "Failed to create TDT section filter\n");
+ exit(1);
+ }
+ pollfds[1].fd = tdt_fd;
+ pollfds[1].events = POLLIN|POLLPRI|POLLERR;
+
+ // zero PMT filter
+ pollfds[2].fd = 0;
+ pollfds[2].events = 0;
+
+ // the DVB loop
+ while(!dvbthread_shutdown) {
+ // tune frontend + monitor lock status
+ if (tune_state == 0) {
+ // get the type of frontend
+ struct dvbfe_info result;
+ char *types;
+ memset(&result, 0, sizeof(result));
+ dvbfe_get_info(params->fe, 0, &result, DVBFE_INFO_QUERYTYPE_IMMEDIATE, 0);
+ switch(result.type) {
+ case DVBFE_TYPE_DVBS:
+ types = "DVB-S";
+ break;
+ case DVBFE_TYPE_DVBC:
+ types = "DVB-C";
+ break;
+ case DVBFE_TYPE_DVBT:
+ types = "DVB-T";
+ break;
+ case DVBFE_TYPE_ATSC:
+ types = "ATSC";
+ break;
+ default:
+ types = "Unknown";
+ }
+ fprintf(stderr, "Using frontend \"%s\", type %s\n", result.name, types);
+
+ // do we have a valid SEC configuration?
+ struct dvbsec_config *sec = NULL;
+ if (params->valid_sec)
+ sec = &params->sec;
+
+ // tune!
+ if (dvbsec_set(params->fe,
+ sec,
+ params->channel.polarization,
+ (params->channel.diseqc_switch & 0x01) ? DISEQC_SWITCH_B : DISEQC_SWITCH_A,
+ (params->channel.diseqc_switch & 0x02) ? DISEQC_SWITCH_B : DISEQC_SWITCH_A,
+ &params->channel.fe_params,
+ 0)) {
+ fprintf(stderr, "Failed to set frontend\n");
+ exit(1);
+ }
+
+ tune_state++;
+ } else if (tune_state == 1) {
+ struct dvbfe_info result;
+ memset(&result, 0, sizeof(result));
+ if (dvbfe_get_info(params->fe,
+ FE_STATUS_PARAMS,
+ &result,
+ DVBFE_INFO_QUERYTYPE_IMMEDIATE,
+ 0) != FE_STATUS_PARAMS) {
+ fprintf(stderr, "Problem retrieving frontend information: %m\n");
+ }
+
+ fprintf(stderr, "status %c%c%c%c%c | signal %04x | snr %04x | ber %08x | unc %08x | %s\r",
+ result.signal ? 'S' : ' ',
+ result.carrier ? 'C' : ' ',
+ result.viterbi ? 'V' : ' ',
+ result.sync ? 'Y' : ' ',
+ result.lock ? 'L' : ' ',
+ result.signal_strength,
+ result.snr,
+ result.ber,
+ result.ucblocks,
+ result.lock ? "FE_HAS_LOCK" : "");
+ fflush(stderr);
+
+ if (result.lock) {
+ tune_state++;
+ fprintf(stderr, "\n");
+ fflush(stderr);
+ } else {
+ usleep(500000);
+ }
+ }
+
+ // is there SI data?
+ int count = poll(pollfds, 3, 100);
+ if (count < 0) {
+ fprintf(stderr, "Poll error\n");
+ break;
+ }
+ if (count == 0) {
+ continue;
+ }
+
+ // PAT
+ if (pollfds[0].revents & (POLLIN|POLLPRI)) {
+ process_pat(pat_fd, params, &pmt_fd, &pollfds[2]);
+ }
+
+ // TDT
+ if (pollfds[1].revents & (POLLIN|POLLPRI)) {
+ process_tdt(tdt_fd);
+ }
+
+ // PMT
+ if (pollfds[2].revents & (POLLIN|POLLPRI)) {
+ process_pmt(pmt_fd, params);
+ }
+ }
+
+ // close demuxers
+ if (pat_fd != -1)
+ close(pat_fd);
+ if (pmt_fd != -1)
+ close(pmt_fd);
+ if (tdt_fd != -1)
+ close(tdt_fd);
+
+ return 0;
+}
+
+static void process_pat(int pat_fd, struct zap_dvb_params *params, int *pmt_fd, struct pollfd *pollfd)
+{
+ int size;
+ uint8_t sibuf[4096];
+
+ // read the section
+ if ((size = read(pat_fd, sibuf, sizeof(sibuf))) < 0) {
+ return;
+ }
+
+ // parse section
+ struct section *section = section_codec(sibuf, size);
+ if (section == NULL) {
+ return;
+ }
+
+ // parse section_ext
+ struct section_ext *section_ext = section_ext_decode(section, 0);
+ if (section_ext == NULL) {
+ return;
+ }
+ if (pat_version == section_ext->version_number) {
+ return;
+ }
+
+ // parse PAT
+ struct mpeg_pat_section *pat = mpeg_pat_section_codec(section_ext);
+ if (pat == NULL) {
+ return;
+ }
+
+ // try and find the requested program
+ struct mpeg_pat_program *cur_program;
+ mpeg_pat_section_programs_for_each(pat, cur_program) {
+ if (cur_program->program_number == params->channel.service_id) {
+ // close old PMT fd
+ if (*pmt_fd != -1)
+ close(*pmt_fd);
+
+ // create PMT filter
+ if ((*pmt_fd = create_section_filter(params->adapter_id, params->demux_id,
+ cur_program->pid, stag_mpeg_program_map)) < 0) {
+ return;
+ }
+ pollfd->fd = *pmt_fd;
+ pollfd->events = POLLIN|POLLPRI|POLLERR;
+
+ // we have a new PMT pid
+ ca_pmt_version = -1;
+ break;
+ }
+ }
+
+ // remember the PAT version
+ pat_version = section_ext->version_number;
+}
+
+static void process_tdt(int tdt_fd)
+{
+ int size;
+ uint8_t sibuf[4096];
+
+ // read the section
+ if ((size = read(tdt_fd, sibuf, sizeof(sibuf))) < 0) {
+ return;
+ }
+
+ // parse section
+ struct section *section = section_codec(sibuf, size);
+ if (section == NULL) {
+ return;
+ }
+
+ // parse TDT
+ struct dvb_tdt_section *tdt = dvb_tdt_section_codec(section);
+ if (tdt == NULL) {
+ return;
+ }
+
+ // done
+ zap_ca_new_dvbtime(dvbdate_to_unixtime(tdt->utc_time));
+}
+
+static void process_pmt(int pmt_fd, struct zap_dvb_params *params)
+{
+ int size;
+ uint8_t sibuf[4096];
+
+ // read the section
+ if ((size = read(pmt_fd, sibuf, sizeof(sibuf))) < 0) {
+ return;
+ }
+
+ // parse section
+ struct section *section = section_codec(sibuf, size);
+ if (section == NULL) {
+ return;
+ }
+
+ // parse section_ext
+ struct section_ext *section_ext = section_ext_decode(section, 0);
+ if (section_ext == NULL) {
+ return;
+ }
+ if ((section_ext->table_id_ext != params->channel.service_id) ||
+ (section_ext->version_number == ca_pmt_version)) {
+ return;
+ }
+
+ // parse PMT
+ struct mpeg_pmt_section *pmt = mpeg_pmt_section_codec(section_ext);
+ if (pmt == NULL) {
+ return;
+ }
+
+ // do ca handling
+ if (zap_ca_new_pmt(pmt) == 1)
+ ca_pmt_version = pmt->head.version_number;
+}
+
+static int create_section_filter(int adapter, int demux, uint16_t pid, uint8_t table_id)
+{
+ int demux_fd = -1;
+ uint8_t filter[18];
+ uint8_t mask[18];
+
+ // open the demuxer
+ if ((demux_fd = dvbdemux_open_demux(adapter, demux, 0)) < 0) {
+ return -1;
+ }
+
+ // create a section filter
+ memset(filter, 0, sizeof(filter));
+ memset(mask, 0, sizeof(mask));
+ filter[0] = table_id;
+ mask[0] = 0xFF;
+ if (dvbdemux_set_section_filter(demux_fd, pid, filter, mask, 1, 1)) {
+ close(demux_fd);
+ return -1;
+ }
+
+ // done
+ return demux_fd;
+}
diff --git a/util/zap/zap_dvb.h b/util/zap/zap_dvb.h
new file mode 100644
index 0000000..d2a219a
--- /dev/null
+++ b/util/zap/zap_dvb.h
@@ -0,0 +1,41 @@
+/*
+ ZAP utility DVB functions
+
+ 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 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 Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with this library; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+*/
+
+#ifndef ZAP_DVB_H
+#define ZAP_DVB_H 1
+
+#include <libdvbcfg/dvbcfg_zapchannel.h>
+#include <libdvbsec/dvbsec_api.h>
+
+struct zap_dvb_params {
+ int adapter_id;
+ int frontend_id;
+ int demux_id;
+ struct dvbcfg_zapchannel channel;
+ struct dvbsec_config sec;
+ int valid_sec;
+ struct dvbfe_handle *fe;
+};
+
+extern int zap_dvb_start(struct zap_dvb_params *params);
+extern void zap_dvb_stop(void);
+
+#endif
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-16 06:22:53 +0000