1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
|
/*
* sdt.c: SDT section filter
*
* See the main source file 'vdr.c' for copyright information and
* how to reach the author.
*
* $Id: sdt.c 2.4 2009/12/23 16:02:47 kls Exp $
*/
#include "sdt.h"
#include "channels.h"
#include "config.h"
#include "libsi/section.h"
#include "libsi/descriptor.h"
// --- cSdtFilter ------------------------------------------------------------
cSdtFilter::cSdtFilter(cPatFilter *PatFilter)
{
patFilter = PatFilter;
Set(0x11, 0x42); // SDT
}
void cSdtFilter::SetStatus(bool On)
{
cFilter::SetStatus(On);
sectionSyncer.Reset();
}
void cSdtFilter::Process(u_short Pid, u_char Tid, const u_char *Data, int Length)
{
if (!(Source() && Transponder()))
return;
SI::SDT sdt(Data, false);
if (!sdt.CheckCRCAndParse())
return;
if (!sectionSyncer.Sync(sdt.getVersionNumber(), sdt.getSectionNumber(), sdt.getLastSectionNumber()))
return;
if (!Channels.Lock(true, 10))
return;
SI::SDT::Service SiSdtService;
for (SI::Loop::Iterator it; sdt.serviceLoop.getNext(SiSdtService, it); ) {
cChannel *channel = Channels.GetByChannelID(tChannelID(Source(), sdt.getOriginalNetworkId(), sdt.getTransportStreamId(), SiSdtService.getServiceId()));
if (!channel)
channel = Channels.GetByChannelID(tChannelID(Source(), 0, Transponder(), SiSdtService.getServiceId()));
cLinkChannels *LinkChannels = NULL;
SI::Descriptor *d;
for (SI::Loop::Iterator it2; (d = SiSdtService.serviceDescriptors.getNext(it2)); ) {
switch (d->getDescriptorTag()) {
case SI::ServiceDescriptorTag: {
SI::ServiceDescriptor *sd = (SI::ServiceDescriptor *)d;
switch (sd->getServiceType()) {
case 0x01: // digital television service
case 0x02: // digital radio sound service
case 0x04: // NVOD reference service
case 0x05: // NVOD time-shifted service
case 0x19: // digital HD television service
{
char NameBuf[Utf8BufSize(1024)];
char ShortNameBuf[Utf8BufSize(1024)];
char ProviderNameBuf[Utf8BufSize(1024)];
sd->serviceName.getText(NameBuf, ShortNameBuf, sizeof(NameBuf), sizeof(ShortNameBuf));
char *pn = compactspace(NameBuf);
char *ps = compactspace(ShortNameBuf);
if (!*ps && cSource::IsCable(Source())) {
// Some cable providers don't mark short channel names according to the
// standard, but rather go their own way and use "name>short name":
char *p = strchr(pn, '>'); // fix for UPC Wien
if (p && p > pn) {
*p++ = 0;
strcpy(ShortNameBuf, skipspace(p));
}
}
// Avoid ',' in short name (would cause trouble in channels.conf):
for (char *p = ShortNameBuf; *p; p++) {
if (*p == ',')
*p = '.';
}
sd->providerName.getText(ProviderNameBuf, sizeof(ProviderNameBuf));
char *pp = compactspace(ProviderNameBuf);
if (channel) {
channel->SetId(sdt.getOriginalNetworkId(), sdt.getTransportStreamId(), SiSdtService.getServiceId());
if (Setup.UpdateChannels == 1 || Setup.UpdateChannels >= 3)
channel->SetName(pn, ps, pp);
// Using SiSdtService.getFreeCaMode() is no good, because some
// tv stations set this flag even for non-encrypted channels :-(
// The special value 0xFFFF was supposed to mean "unknown encryption"
// and would have been overwritten with real CA values later:
// channel->SetCa(SiSdtService.getFreeCaMode() ? 0xFFFF : 0);
}
else if (*pn && Setup.UpdateChannels >= 4) {
channel = Channels.NewChannel(Channel(), pn, ps, pp, sdt.getOriginalNetworkId(), sdt.getTransportStreamId(), SiSdtService.getServiceId());
patFilter->Trigger();
}
}
default: ;
}
}
break;
// Using the CaIdentifierDescriptor is no good, because some tv stations
// just don't use it. The actual CA values are collected in pat.c:
/*
case SI::CaIdentifierDescriptorTag: {
SI::CaIdentifierDescriptor *cid = (SI::CaIdentifierDescriptor *)d;
if (channel) {
for (SI::Loop::Iterator it; cid->identifiers.hasNext(it); )
channel->SetCa(cid->identifiers.getNext(it));
}
}
break;
*/
case SI::NVODReferenceDescriptorTag: {
SI::NVODReferenceDescriptor *nrd = (SI::NVODReferenceDescriptor *)d;
SI::NVODReferenceDescriptor::Service Service;
for (SI::Loop::Iterator it; nrd->serviceLoop.getNext(Service, it); ) {
cChannel *link = Channels.GetByChannelID(tChannelID(Source(), Service.getOriginalNetworkId(), Service.getTransportStream(), Service.getServiceId()));
if (!link && Setup.UpdateChannels >= 4) {
link = Channels.NewChannel(Channel(), "NVOD", "", "", Service.getOriginalNetworkId(), Service.getTransportStream(), Service.getServiceId());
patFilter->Trigger();
}
if (link) {
if (!LinkChannels)
LinkChannels = new cLinkChannels;
LinkChannels->Add(new cLinkChannel(link));
}
}
}
break;
default: ;
}
delete d;
}
if (LinkChannels) {
if (channel)
channel->SetLinkChannels(LinkChannels);
else
delete LinkChannels;
}
}
Channels.Unlock();
}
|
