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scanner.cpp
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/*******************************************************************************
* wirbelscan: A plugin for the Video Disk Recorder
* See the README file for copyright information and how to reach the author.
******************************************************************************/
#include <string>
#include <array>
#include <algorithm> // std::min()
#include <vdr/sources.h>
#include <vdr/device.h>
#include "scanner.h"
#include "menusetup.h"
#include "common.h"
#include "satellites.h"
#include "scanfilter.h"
#include "statemachine.h"
#include "countries.h"
#include "wirbelscan_services.h"
#if VDRVERSNUM < 20301
#error "Your VDR version is too old - STOP."
#endif
using namespace COUNTRY;
extern const char* WIRBELSCAN_VERSION;
int initialTransponders;
cScanner* Scanner = nullptr;
static unsigned int chan_to_freq(int channel, int channellist) {
if (channellist == 999)
dlog(6, "channellist=" + IntToStr(channellist) +
", base_offset=" + IntToStr(base_offset(channel, channellist)) +
", channel=" + IntToStr(channel) +
", step=" + IntToStr(freq_step(channel, channellist)));
if (base_offset(channel, channellist) != -1) // -1 == invalid
return (base_offset(channel, channellist) + channel * freq_step(channel, channellist));
return 0;
}
static int device_is_preferred(TChannel* Channel, std::string name, bool secondGen) {
int preferred = 1; // no preferrence
/* add other good/bad cards here. */
if (name == "VLSI VES1820") {
/* bad working FF dvb-c card, known to have qam256 probs */
preferred = 0; // not preferred
}
else if (name == "Sony CXD2820R") {
/* PCTV 290e known to have qam256 probs. */
/* PCTV 290e doesnt support newer DVB-T2 */
preferred = 0; // not preferred
}
else if (secondGen) {
/* wirbelscan preferres devices which are DVB-{S,C,T}2 */
preferred = 2; // preferred
}
return preferred;
}
cDevice* DefaultDevice(TChannel* Channel) {
std::string preferred = wSetup.preferred[dmap[*(Channel->Source.c_str())]];
for(int i=0; i<cDevice::NumDevices(); i++) {
auto dev = cDevice::GetDevice(i);
if (DeviceName(dev) == preferred)
return dev;
}
return nullptr;
}
cDevice* GetPreferredDevice(TChannel* Channel) {
cDevice* dev = DefaultDevice(Channel);
if (dev) return dev;
int preferred = 0;
int pref_device = -1;
std::string name;
TChannel ch2nd;
bool gen2 = false;
std::string s;
Channel->PrintTransponder(s);
dlog(6, "'" + Channel->Source + "' " + s);
// skip ChannelID check in cChannel::Parse()
// we just want to find a device here, nothing else.
int nid = Channel->NID;
int sid = Channel->SID;
Channel->NID = 0x2000;
Channel->SID = 0x2000;
cChannel c;
Channel->VdrChannel(c);
Channel->NID = nid;
Channel->SID = sid;
dlog(4, "testing '" + std::string(*c.ToText()) + "'");
for(int i=0; i<cDevice::NumDevices(); i++) {
// next line should never fail.
if (!(dev = cDevice::GetDevice(i)))
continue;
name = dev->DeviceName();
if (!dev->ProvidesTransponder(&c)) {
dlog(4, "device " + IntToStr(dev->CardIndex()) + " = " + name +
" (not usable)");
continue;
}
if (Channel->Source[0] == 'S' or Channel->Source[0] == 'T') {
ch2nd = &c;
ch2nd.DelSys = 1;
ch2nd.NID = 0x2000;
ch2nd.SID = 0x2000;
ch2nd.VdrChannel(c);
gen2 = dev->ProvidesTransponder(&c);
}
else
gen2 = false;
dlog(4, "device " + IntToStr(dev->CardIndex()) + " = " + name);
if (device_is_preferred(Channel, name, gen2) >= preferred) {
preferred = device_is_preferred(Channel, name, gen2);
pref_device = i;
}
switch(preferred) {
case 0:
dlog(4, "device known to have probs. usable anyway..");
break;
case 1:
dlog(4, "device has no gen2 delsys support.");
break;
case 2:
dlog(4, "device has gen2 delsys support.");
return dev;
default:;
}
}
if (pref_device >= 0) {
dev = cDevice::GetDevice(pref_device);
return dev;
}
return nullptr;
}
/*******************************************************************************
* class cScanner
******************************************************************************/
cScanner::cScanner(const char* Description, int Type) :
shouldstop(false), single(false),
status(0), initialTransponders(0), newTransponders(0), thisChannel(-1),
type(Type), dev(nullptr), aChannel(nullptr), StateMachine(nullptr)
{
user[0] = user[1] = user[2] = 0;
Start();
}
cScanner::~cScanner(void) {
dlog(5, "destroying scanner");
Scanner = nullptr;
}
void cScanner::SetShouldstop(bool On) {
shouldstop = On;
if (StateMachine)
StateMachine->DoStop();
}
bool cScanner::ActionAllowed(void) {
return Running() and not shouldstop;
}
bool cScanner::Active(void) {
return Running();
}
void cScanner::Progress(void) {
extern TChannels ScannedTransponders;
extern TChannels NewTransponders;
lProgress = 0.5 + (100.0 * (ThisChannel() + ScannedTransponders.Count()) / (NewTransponders.Count() + InitialTransponders()));
if (!initialTransponders)
lProgress = 0;
if (lProgress > 100)
lProgress = 100;
if (MenuScanning) {
MenuScanning->SetCounters(thisChannel + ScannedTransponders.Count(), NewTransponders.Count() + initialTransponders);
MenuScanning->SetProgress(lProgress);
}
}
cDvbDevice* cScanner::DvbDevice(void) {
return GetDvbDevice(dev);
}
void cScanner::Action(void) {
bool crAuto, modAuto, invAuto, bwAuto, hAuto, tmAuto, gAuto, t2Support, roAuto, s2Support, vsbSupport, qamSupport;
bool useNit = true;
bool isSatip = false;
int f = 0;
int mod_parm, modulation_min = 0, modulation_max = 1;
int sr_parm, dvbc_symbolrate_min = 0, dvbc_symbolrate_max = 1;
int sys_parm = 0, thisSystem = -1;
int streamid_parm = 0;
int channel, channel_min = 0, channel_max = 133;
int offs, freq_offset_min = 0, freq_offset_max = 2;
int this_channellist = DVBT_DE, this_bandwidth = 8, this_qam = 999, atsc = ATSC_VSB, dvb;
int qam_no_auto = 0, this_atsc = 0;
uint16_t frontend_type = SCAN_SATELLITE;
std::string country = country_to_short_name(wSetup.CountryIndex);
std::string satellite = satellite_to_short_name(wSetup.SatIndex);
std::string channelname, shortname;
int caps_inversion = 0, caps_qam = 999, caps_hierarchy = 0;
int caps_fec = 999, caps_guard_interval = 999, caps_transmission_mode = 999;
int caps_s2 = 1;
std::string s;
resetLists();
thisChannel = 0;
initialTransponders = 0;
dev = nullptr;
status = 1;
if (MenuScanning) MenuScanning->SetStatus(status);
dlog(3, "wirbelscan version " + std::string(WIRBELSCAN_VERSION) +
" @ VDR " + std::string(VDRVERSION));
switch(type) {
case SCAN_TRANSPONDER: {
using namespace WIRBELSCAN_SERVICE;
cUserTransponder* t = new cUserTransponder(&wSetup.user[0]);
this_channellist = USERLIST;
useNit = t->UseNit();
// disable all loops
modulation_min = modulation_max = 0;
dvbc_symbolrate_min = dvbc_symbolrate_max = 0;
channel_min = channel_max = 1;
freq_offset_min = freq_offset_max = 0;
single = true;
thisChannel = -1;
aChannel = new TChannel;
switch(t->Type()) {
case SCAN_TERRESTRIAL:
dvb = frontend_type = SCAN_TERRESTRIAL;
aChannel->Source = "T";
aChannel->Frequency = t->Frequency();
aChannel->Inversion = t->Inversion();
aChannel->Bandwidth = t->Bandwidth();
aChannel->FEC = t->FecHP();
aChannel->FEC_low = t->FecLP();
aChannel->Modulation = t->Modulation();
aChannel->DelSys = t->System();
aChannel->Transmission = t->Transmission();
aChannel->Guard = t->Guard();
aChannel->Hierarchy = t->Hierarchy();
break;
case SCAN_CABLE:
dvb = frontend_type = SCAN_CABLE;
aChannel->Source = "C";
aChannel->Frequency = t->Frequency();
aChannel->Modulation = t->Modulation();
aChannel->Symbolrate = t->Symbolrate();
aChannel->Inversion = t->Inversion();
aChannel->FEC = FEC_NONE;
aChannel->DelSys = t->System();
break;
case SCAN_SATELLITE:
dvb = frontend_type = SCAN_SATELLITE;
aChannel->Source = sat_list[t->Id()].source_id;
aChannel->West = sat_list[t->Id()].west_east_flag == WEST_FLAG;
aChannel->OrbitalPos = aChannel->West ?
BCDtoDecimal(0x3600) - BCDtoDecimal(sat_list[t->Id()].orbital_position) :
BCDtoDecimal(sat_list[t->Id()].orbital_position);
aChannel->Frequency = t->Frequency();
aChannel->Symbolrate = t->Symbolrate();
aChannel->Polarization = t->Polarisation() == 0 ? 'H':
t->Polarisation() == 1 ? 'V':
t->Polarisation() == 2 ? 'L': 'R';
aChannel->FEC = t->FecHP();
aChannel->Modulation = t->Modulation();
aChannel->DelSys = t->System();
aChannel->Rolloff = t->Rolloff();
break;
case SCAN_TERRCABLE_ATSC:
dvb = frontend_type = SCAN_TERRCABLE_ATSC;
//fixme: vsb vs qam here
aChannel->Source = "A";
aChannel->Frequency = t->Frequency();
aChannel->Symbolrate = t->Symbolrate();
aChannel->Inversion = t->Inversion();
aChannel->FEC = FEC_NONE;
aChannel->Bandwidth = 6;
break;
default:
dlog(0, "unsupported user transponder type.");
}
if ((dev = GetPreferredDevice(aChannel)) == nullptr) {
dlog(0, "No device available - exiting!");
if (MenuScanning) MenuScanning->SetStatus((status = 2));
DeleteNullptr(aChannel);
return;
}
if (std::string(dev->DeviceName()).find("SAT>IP") == std::string::npos) {
PrintDvbApi(s);
dlog(5, s);
switch(t->Type()) {
case SCAN_TERRESTRIAL:
if (! GetTerrCapabilities(dev, &crAuto, &modAuto, &invAuto, &bwAuto, &hAuto, &tmAuto, &gAuto, &t2Support))
dlog(0, "ERROR: Could not query capabilites.");
break;
case SCAN_CABLE:
if (! GetCableCapabilities(dev, &modAuto, &invAuto))
dlog(0, "ERROR: Could not query capabilites.");
break;
case SCAN_SATELLITE:
if (! GetSatCapabilities(dev, &crAuto, &modAuto, &roAuto, &s2Support))
dlog(0, "ERROR: Could not query capabilites.");
break;
case SCAN_TERRCABLE_ATSC:
if (! GetAtscCapabilities(dev, &modAuto, &invAuto, &vsbSupport, &qamSupport))
dlog(0, "ERROR: Could not query capabilites.");
break;
default:;
}
}
else {
crAuto = 0;
modAuto = 0;
invAuto = 0;
bwAuto = 0;
hAuto = 0;
tmAuto = 0;
gAuto = 0;
t2Support = 1;
crAuto = 0;
modAuto = 0;
roAuto = 0;
s2Support = 1;
}
lDeviceName = dev->DeviceName();
dlog(3, "frontend " + lDeviceName);
if (MenuScanning)
MenuScanning->SetDeviceName(lDeviceName);
break;
}
case SCAN_TERRESTRIAL: {
dvb = type;
frontend_type = type;
choose_country(country, atsc, dvb, frontend_type, this_channellist);
/* find a dvb-t2 capable device using *some* channel */
aChannel = new TChannel;
aChannel->Name = "???";
aChannel->Source = "T";
aChannel->Frequency = 474;
aChannel->Inversion = 999;
aChannel->Bandwidth = 8;
aChannel->FEC = 23;
aChannel->Modulation = 256;
aChannel->DelSys = 1;
aChannel->Transmission = 8;
aChannel->Guard = 999;
aChannel->Hierarchy = 0;
if ((dev = GetPreferredDevice(aChannel)) == nullptr) {
dlog(0, "No DVB-T2 device available - trying fallback to DVB-T");
if (MenuScanning) MenuScanning->SetStatus((status = 3));
aChannel->Modulation = 64;
aChannel->DelSys = 0;
if ((dev = GetPreferredDevice(aChannel)) == nullptr) {
dlog(0, "No device available - exiting!");
if (MenuScanning)
MenuScanning->SetStatus((status = 2));
DeleteNullptr(aChannel);
return;
}
}
if (std::string(dev->DeviceName()).find("SAT>IP") == std::string::npos) {
PrintDvbApi(s);
dlog(5, s);
if (! GetTerrCapabilities(dev, &crAuto, &modAuto, &invAuto, &bwAuto, &hAuto, &tmAuto, &gAuto, &t2Support))
dlog(0, "ERROR: Could not query capabilites.");
}
else {
crAuto = 0;
modAuto = 0;
invAuto = 0;
bwAuto = 0;
hAuto = 0;
tmAuto = 0;
gAuto = 0;
t2Support = 1;
}
lDeviceName = dev->DeviceName();
dlog(3, "frontend " + lDeviceName);
if (MenuScanning)
MenuScanning->SetDeviceName(lDeviceName);
if (invAuto)
caps_inversion = 999;
else {
dlog(5, "I999 not supported, trying I" + IntToStr(wSetup.DVBT_Inversion) + ".");
caps_inversion = wSetup.DVBT_Inversion;
}
if (modAuto)
caps_qam = 999;
else {
caps_qam = 64;
dlog(5, "M999 not supported, trying M" + IntToStr(caps_qam) + ".");
}
if (tmAuto)
caps_transmission_mode = 999;
else {
const int t[] = {2,8,999,4,1,16,32};
caps_transmission_mode = t[dvbt_transmission_mode(5, this_channellist)];
dlog(5, "T999 not supported, trying T" + IntToStr(caps_transmission_mode) + ".");
}
if (gAuto)
caps_guard_interval = 999;
else {
caps_guard_interval = 8;
dlog(5, "G999 not supported, trying G" + IntToStr(caps_guard_interval) + ".");
}
if (hAuto)
caps_hierarchy = 999;
else {
caps_hierarchy = 0;
dlog(5, "Y999 not supported, trying Y" + IntToStr(caps_hierarchy) + ".");
}
if (crAuto)
caps_fec = 999;
else {
caps_fec = 0;
dlog(5, "C999 not supported, trying C" + IntToStr(caps_fec) + ".");
}
if (t2Support)
dlog(5, "DVB-T2 supported");
else
dlog(0, "WARN: you are using an outdated DVB device: no DVB-T2 support.");
// use mod as system T/T2 to avoid a further loop.
// min = T2, max = T
modulation_min = t2Support ? 0 : 1;
modulation_max = 1;
sys_parm = 0;
// use srate as plp 0/1 to avoid a further loop.
dvbc_symbolrate_min = 0;
dvbc_symbolrate_max = t2Support ? 3 : 0;
break;
}
case SCAN_CABLE: {
dvb = type;
frontend_type = type;
choose_country(country, atsc, dvb, frontend_type, this_channellist);
/* find a dvb-c capable device using *some* channel */
aChannel = new TChannel;
aChannel->Name = "???";
aChannel->Source = "C";
aChannel->Frequency = 410;
aChannel->Modulation = 64;
aChannel->Symbolrate = 6900;
aChannel->Inversion = 999;
aChannel->FEC = 0;
aChannel->DelSys = 0;
if ((dev = GetPreferredDevice(aChannel)) == nullptr) {
dlog(0, "No device available - exiting!");
if (MenuScanning) MenuScanning->SetStatus((status = 2));
DeleteNullptr(aChannel);
return;
}
if (std::string(dev->DeviceName()).find("SAT>IP") == std::string::npos) {
PrintDvbApi(s);
dlog(5, s);
if (! GetCableCapabilities(dev, &modAuto, &invAuto))
dlog(0, "ERROR: Could not query capabilites.");
}
else {
invAuto = 0;
modAuto = 0;
}
lDeviceName = dev->DeviceName();
dlog(3, "frontend " + lDeviceName);
if (MenuScanning)
MenuScanning->SetDeviceName(lDeviceName);
if (invAuto)
caps_inversion = 999;
else {
caps_inversion = wSetup.DVBC_Inversion;
dlog(5, "I999 not supported, trying I" + IntToStr(caps_inversion) + ".");
}
if (modAuto)
caps_qam = 999;
else {
std::string s;
for(int i = modulation_min; i <= modulation_max; i++) {
if (s.size()) s += ", ";
s += "M" + IntToStr(dvbc_modulation(i));
}
dlog(5, "M999 not supported, trying " + s + ".");
caps_qam = 64;
qam_no_auto = 1;
}
caps_fec = 0;
switch(wSetup.DVBC_Symbolrate) {
case 0: // auto
dvbc_symbolrate_min = 0;
dvbc_symbolrate_max = 1;
break;
case 1 ... 15:
dvbc_symbolrate_min = dvbc_symbolrate_max = wSetup.DVBC_Symbolrate - 1;
break;
default:// all
dvbc_symbolrate_min = 0;
dvbc_symbolrate_max = 14;
break;
}
break;
}
case SCAN_SATELLITE: {
dvb = type;
frontend_type = type;
choose_satellite(satellite, this_channellist);
/* find a dvb-s2 capable device using *some* channel */
char p[] = {'H','V','L','R'};
aChannel = new TChannel;
size_t ch = 0;
for(size_t i=0; i<sat_list[this_channellist].item_count; i++) {
aChannel->Source = sat_list[this_channellist].source_id;
aChannel->Frequency = sat_list[this_channellist].items[i].intermediate_frequency;
aChannel->Polarization = p[sat_list[this_channellist].items[i].polarization];
if (aChannel->ValidSatIf()) {
ch = i;
break;
}
}
aChannel->Name = "???";
aChannel->Source = sat_list[this_channellist].source_id;
aChannel->West = sat_list[this_channellist].west_east_flag == WEST_FLAG;
aChannel->OrbitalPos = aChannel->West ?
BCDtoDecimal(0x3600) - BCDtoDecimal(sat_list[this_channellist].orbital_position) :
BCDtoDecimal(sat_list[this_channellist].orbital_position);
aChannel->Frequency = sat_list[this_channellist].items[ch].intermediate_frequency;
aChannel->Polarization = p[sat_list[this_channellist].items[ch].polarization];
aChannel->Symbolrate = 27500;
aChannel->FEC = 23;
aChannel->Modulation = 5;
aChannel->DelSys = 1;
aChannel->Rolloff = 35;
if ((dev = GetPreferredDevice(aChannel)) == nullptr) {
dlog(0, "No DVB-S2 device available - trying fallback to DVB-S");
if (MenuScanning) MenuScanning->SetStatus((status = 3));
aChannel->Modulation = 2;
aChannel->DelSys = 0;
caps_s2 = 0;
if ((dev = GetPreferredDevice(aChannel)) == nullptr) {
dlog(0, "No device available - exiting!");
if (MenuScanning)
MenuScanning->SetStatus((status = 2));
DeleteNullptr(aChannel);
return;
}
}
if (std::string(dev->DeviceName()).find("SAT>IP") == std::string::npos) {
PrintDvbApi(s);
dlog(5, s);
if (! GetSatCapabilities(dev, &crAuto, &modAuto, &roAuto, &s2Support))
dlog(0, "ERROR: Could not query capabilites.");
}
else {
crAuto = 0;
modAuto = 0;
roAuto = 0;
s2Support = 1;
}
if (caps_s2) s2Support = 1;
lDeviceName = dev->DeviceName();
dlog(3, "frontend " + lDeviceName);
if (MenuScanning)
MenuScanning->SetDeviceName(lDeviceName);
caps_inversion = 999;
if (crAuto)
caps_fec = 999;
dlog(5, "DVB-S");
if (s2Support) {
dlog(5, "DVB-S2");
caps_s2 = 1;
}
else
caps_s2 = 0;
// channel means here: transponder,
// last channel == (item_count - 1) since we're counting from 0
channel_max = sat_list[this_channellist].item_count - 1;
// disable qam loop
modulation_min = modulation_max = 0;
// disable symbolrate loop
dvbc_symbolrate_min = dvbc_symbolrate_max = 0;
// disable freq offset loop
freq_offset_min = freq_offset_max = 0;
break;
}
case SCAN_TERRCABLE_ATSC: {
int atsc = 1 + wSetup.ATSC_type;
frontend_type = type;
choose_country(country, atsc, dvb, frontend_type, this_channellist);
/* TODO: distinguish between atsc vsb && atsc qam */
aChannel = new TChannel;
aChannel->Source = "A";
aChannel->Frequency = 474;
aChannel->Modulation = 256;
aChannel->Symbolrate = 6900;
aChannel->Inversion = 0;
aChannel->FEC = 0;
aChannel->DelSys = 0;
if ((dev = GetPreferredDevice(aChannel)) == nullptr) {
dlog(0, "No device available - exiting!");
if (MenuScanning) MenuScanning->SetStatus((status = 2));
DeleteNullptr(aChannel);
return;
}
if (std::string(dev->DeviceName()).find("SAT>IP") == std::string::npos) {
PrintDvbApi(s);
dlog(5, s);
if (! GetAtscCapabilities(dev, &modAuto, &invAuto, &vsbSupport, &qamSupport))
dlog(0, "ERROR: Could not query capabilites.");
}
else {
modAuto = 0;
invAuto = 0;
vsbSupport = 1;
qamSupport = 1;
}
lDeviceName = dev->DeviceName();
dlog(3, "frontend " + lDeviceName);
if (MenuScanning)
MenuScanning->SetDeviceName(lDeviceName);
if (invAuto)
caps_inversion = 999;
else {
caps_inversion = 0;
dlog(5, "I999 not supported, trying I" + IntToStr(caps_inversion) + ".");
}
if (vsbSupport)
dlog(5, "VSB");
if (qamSupport) {
dlog(5, "QAM");
caps_qam = 1;
}
switch (1 + wSetup.ATSC_type) {
case ATSC_VSB:
modulation_min = modulation_max = ATSC_VSB;
break;
case ATSC_QAM:
modulation_min = modulation_max = ATSC_QAM;
break;
default:
modulation_min = ATSC_VSB;
modulation_max = ATSC_QAM;
break;
}
// disable symbolrate loop
dvbc_symbolrate_min = dvbc_symbolrate_max = 0;
break;
}
default:
dlog(0, "ERROR: Unknown scan type " + IntToStr(type));
return;
} // end switch type
if (lDeviceName.compare(0, 6, "SAT>IP") == 0)
isSatip = true;
if (MenuScanning)
MenuScanning->SetStatus((status = 1));
//count channels.
switch(type) {
case SCAN_SATELLITE:
case SCAN_TRANSPONDER:
initialTransponders = channel_max;
break;
default:
// number depends on offset and symbolrates; counting in nested loops is easiest way.
for(mod_parm = modulation_min; mod_parm <= modulation_max; mod_parm++)
for(channel = channel_min; channel <= channel_max; channel++)
for(offs = freq_offset_min; offs <= freq_offset_max; offs++)
for(sr_parm = dvbc_symbolrate_min; sr_parm <= dvbc_symbolrate_max; sr_parm++) {
if ((! chan_to_freq(channel, this_channellist)) ||
(freq_offset(channel, this_channellist, offs) == -1))
continue;
++initialTransponders;
}
} // switch(type)
cChannel c;
for(mod_parm = modulation_min; mod_parm <= modulation_max; mod_parm++) {
for(channel = channel_min; channel <= channel_max; channel++) {
for(offs = freq_offset_min; offs <= freq_offset_max; offs++)
for(sr_parm = dvbc_symbolrate_min; sr_parm <= dvbc_symbolrate_max; sr_parm++) {
if (!ActionAllowed())
goto stop;
switch (type) {
case SCAN_TERRESTRIAL: {
std::array<int,2> DelSys = {1,0}; // {T2,T}
sys_parm = DelSys[mod_parm]; // NOTE: mod_parm is abused as 'system'
if (thisSystem != sys_parm) {
thisSystem = sys_parm;
std::string Gen2(sys_parm, '2');
dlog(4, "Scanning DVB-T" + Gen2 + "...");
}
if (sys_parm == 0) {
// DVB-T: no plp, skip plp loop.
streamid_parm = 0;
sr_parm = dvbc_symbolrate_max;
}
else {
streamid_parm = sr_parm; // NOTE: sr_parm is abused as 'plp'
}
f = chan_to_freq(channel, this_channellist);
if (!f)
continue; //skip unused channels
if (freq_offset(channel, this_channellist, offs) == -1)
continue; //skip this one
f += freq_offset(channel, this_channellist, offs);
{
int bHz = bandwidth(channel, this_channellist), bvdr = bHz / 1000000;
if (bHz == 1712000) bvdr = 1712;
if (this_bandwidth != bvdr) {
if (bvdr < 11)
dlog(4, "Scanning " + IntToStr(bvdr) + "MHz frequencies...");
else
dlog(4, "Scanning " + FloatToStr(bvdr/1000.0,1,2,false) + "MHz frequencies...");
}
this_bandwidth = bvdr;
}
aChannel->Source = "T";
aChannel->Frequency = f;
aChannel->Symbolrate = 0;
aChannel->Inversion = caps_inversion;
aChannel->Bandwidth = this_bandwidth;
aChannel->FEC = caps_fec;
aChannel->FEC_low = caps_fec;
aChannel->Modulation = caps_qam;
aChannel->DelSys = sys_parm;
aChannel->Transmission = caps_transmission_mode;
aChannel->Guard = caps_guard_interval;
aChannel->Hierarchy = caps_hierarchy;
aChannel->NID = 0;
aChannel->TID = 0;
aChannel->SID = 0;
aChannel->RID = 0;
aChannel->StreamId = streamid_parm;
aChannel->SystemId = 0;
aChannel->PrintTransponder(s);
dlog(4, s);
if (known_transponder(aChannel, false)) {
dlog(4, FloatToStr(aChannel->Frequency/1e6, 1, 3, false) +
"MHz: skipped (already known transponder)");
thisChannel++;
Progress();
continue;
}
}
break;
case SCAN_CABLE:
f = chan_to_freq(channel, this_channellist);
if (!f)
continue; //skip unused channels
if (freq_offset(channel, this_channellist, offs) == -1)
continue; //skip this one
f += freq_offset(channel, this_channellist, offs);
this_qam = caps_qam;
if (qam_no_auto > 0) {
this_qam = dvbc_modulation(mod_parm);
if ((int) aChannel->Modulation != this_qam)
dlog(4, "searching M" + IntToStr(this_qam) + "...");
}
else if (mod_parm > 0) {
continue; // demod supports qam_auto, and we had one loop with QAM_AUTO.
}
aChannel->Source = "C";
aChannel->Frequency = f / 1000;
aChannel->Symbolrate = dvbc_symbolrate(sr_parm) / 1000;
aChannel->Inversion = caps_inversion;
aChannel->Bandwidth = 999;
aChannel->FEC = caps_fec;
aChannel->Modulation = this_qam;
aChannel->DelSys = 0;
aChannel->NID = 0;
aChannel->TID = 0;
aChannel->SID = 0;
aChannel->RID = 0;
aChannel->PrintTransponder(s);
dlog(4, s);
if (known_transponder(aChannel, false)) {
dlog(4, FloatToStr(aChannel->Frequency/1e3, 1, 3, false) +
"MHz: skipped (already known transponder)");
thisChannel++;
Progress();
continue;
}
break;
case SCAN_SATELLITE:
{
auto& sat = sat_list[this_channellist];
auto& tp = sat.items[channel];
aChannel->Source = sat.source_id;
aChannel->Frequency = tp.intermediate_frequency;
aChannel->Symbolrate = tp.symbol_rate;
aChannel->DelSys = tp.modulation_system == 6 ? 1:0;
aChannel->StreamId = tp.stream_id;
char p[] = {'H','V','L','R'};
aChannel->Polarization = p[tp.polarization];
int f[] = {0,12,23,34,45,56,67,78,89,999,35,910};
aChannel->FEC = f[tp.fec_inner];
int m[] = {2,16,32,64,128,256,999,10,11,5,6,7,12,0};
aChannel->Modulation = m[tp.modulation_type];
int r[] = {35,20,25,999};
aChannel->Rolloff = r[tp.rolloff];
aChannel->Pilot = 999;
aChannel->NID = 0;
aChannel->TID = 0;
aChannel->SID = 0;
aChannel->RID = 0;
}
if (! aChannel->ValidSatIf())
continue;
aChannel->Print(s);
dlog(4, s);
///orbital_position = sat_list[this_channellist].orbital_position;
///west_east_flag = sat_list[this_channellist].west_east_flag;
if (sat_list[this_channellist].items[channel].modulation_system == 6) {
if (not(caps_s2)) {
dlog(4, IntToStr(sat_list[this_channellist].items[channel].intermediate_frequency) +
": skipped (no S2 support)");
thisChannel++;
Progress();
continue;
}
}
if (known_transponder(aChannel, false)) {
dlog(4, FloatToStr(aChannel->Frequency/1e0, 1, 3, false) +
": skipped (already known transponder)");
thisChannel++;
continue;
}
break;
case SCAN_TERRCABLE_ATSC:
switch(mod_parm) {
case ATSC_VSB:
this_atsc = 10;
f = chan_to_freq(channel, ATSC_VSB);
if (!f)
continue; //skip unused channels
if (freq_offset(channel, ATSC_VSB, offs) == -1)
continue; //skip this one
f += freq_offset(channel, ATSC_VSB, offs);
break;
case ATSC_QAM:
this_atsc = 256;
f = chan_to_freq(channel, ATSC_QAM);
if (!f)
continue; //skip unused channels
if (freq_offset(channel, ATSC_QAM, offs) == -1)
continue; //skip this one
f += freq_offset(channel, ATSC_QAM, offs);
break;
default:
dlog(0, "unknown atsc modulation id " + IntToStr(mod_parm));
return;
} // end switch mod_parm
//fixme: vsb vs qam here
aChannel->Source = "A";
aChannel->Frequency = f / 1000;
aChannel->Symbolrate = dvbc_symbolrate(sr_parm) / 1000;
aChannel->Modulation = this_atsc;
aChannel->Inversion = caps_inversion;
aChannel->FEC = caps_fec;
aChannel->DelSys = 0;
aChannel->NID = 0;
aChannel->TID = 0;
aChannel->SID = 0;
aChannel->RID = 0;
aChannel->PrintTransponder(s);
dlog(4, s);
if (known_transponder(aChannel, false)) {
dlog(4, FloatToStr(aChannel->Frequency/1e6, 1, 3, false) +
"MHz M" + IntToStr(this_atsc) + ": skipped (already known transponder)");
thisChannel++;
Progress();
continue;
}
break;
case SCAN_TRANSPONDER:
aChannel->PrintTransponder(s);
dlog(4, s);
break;
default:;
} // end switch type
++thisChannel;
lStrength = 0;
Progress();
lTransponder = s.c_str();
if (MenuScanning) {
MenuScanning->SetTransponder(aChannel);
}
aChannel->Tested = false;
int nid = aChannel->NID;
int sid = aChannel->SID;
aChannel->NID = 0x2000;
aChannel->SID = 0x2000;
aChannel->VdrChannel(c);
aChannel->NID = nid;
aChannel->SID = sid;
dev->SwitchChannel(&c, false);
{
bool lock;
if (MenuScanning)
MenuScanning->SetStr(0, false);
mSleep(wSetup.SignalWaitTime * 1000);
if (isSatip or GetFrontendStatus(dev) & FE_HAS_SIGNAL)
lock = dev->HasLock(wSetup.LockTimeout * 1000);
else
lock = false;
if (lock) {
lStrength = std::min((size_t)dev->SignalStrength(), (size_t)100);
if (MenuScanning)
MenuScanning->SetStr(lStrength, lock);
StateMachine = new cStateMachine(dev, aChannel, useNit, this);
while(StateMachine && StateMachine->Active())
mSleep(100);
DeleteNullptr(StateMachine);
}
}
if (dev)
dev->DetachAllReceivers();
} // end loop sr_parm
} // end loop channel
} // end loop mod_parm