bool ShortVirtualChannelTable::Parse(void)
{
_ptrs.clear();
if (kDefinedChannelsMap == TableSubtype())
{
_ptrs.push_back(pesdata() + DefinedChannelsMap().Size() + 7);
}
else if (kVirtualChannelMap == TableSubtype())
{
bool descriptors_included = pesdata()[7] & 0x20;
uint number_of_vc_records = pesdata()[13];
const unsigned char *next = pesdata() + 14;
if (!descriptors_included)
{
for (uint i = 0; i < number_of_vc_records; i++)
{
_ptrs.push_back(next);
next += 9;
}
_ptrs.push_back(next);
}
else
{
for (uint i = 0; i < number_of_vc_records; i++)
{
_ptrs.push_back(next);
uint desc_count = next[10];
next += 10;
for (uint j = 0; j < desc_count; j++)
{
MPEGDescriptor desc(next);
if (!desc.IsValid())
{
_ptrs.clear();
return false;
}
next += desc.size();
}
}
}
_ptrs.push_back(next);
}
else if (kInverseChannelMap == TableSubtype())
{
_ptrs.push_back(pesdata() + InverseChannelMap().Size() + 7);
}
else
{
return false;
}
return true;
}
bool SCTENetworkInformationTable::Parse(void)
{
_ptrs.clear();
if ((kCarrierDefinitionSubtable == TableSubtype()) ||
(kModulationModeSubtable == TableSubtype()))
{
uint offset = (kCarrierDefinitionSubtable == TableSubtype()) ? 6 : 7;
const unsigned char *next = pesdata() + 7;
for (uint i = 0; i < NumberOfRecords(); i++)
{
_ptrs.push_back(next);
uint desc_count = next[offset-1];
next += offset;
for (uint j = 0; j < desc_count; j++)
{
MPEGDescriptor desc(next);
if (!desc.IsValid())
{
_ptrs.clear();
return false;
}
next += desc.size();
}
}
_ptrs.push_back(next);
return true;
}
return false;
}
QString VirtualChannelTable::toStringXML(uint indent_level) const
{
QString indent_0 = xml_indent(indent_level);
QString indent_1 = xml_indent(indent_level + 1);
QString indent_2 = xml_indent(indent_level + 2);
QString section_name = QString("%1VirtualChannelSection")
.arg((TableID::TVCT == TableID()) ? "Terrestrial" : "Cable");
QString mapid;
if (TableID::CVCT == TableID())
{
uint sctemapid = (pesdata()[3]<<8) | pesdata()[4];
mapid = QString(" mapid=\"0x%1\"").arg(sctemapid,4,16,QChar('0'));
}
QString str =
QString("%1<%2 tsid=\"0x%3\" channel_count=\"%4\""
"\n%5global_descriptors_length=\"%6\"%7"
"\n%8%9>\n")
.arg(indent_0)
.arg(section_name)
.arg(TransportStreamID(),4,16,QChar('0'))
.arg(ChannelCount())
.arg(indent_1)
.arg(GlobalDescriptorsLength())
.arg(mapid)
.arg(indent_1)
.arg(PSIPTable::XMLValues(indent_level + 1));
vector<const unsigned char*> gdesc =
MPEGDescriptor::Parse(GlobalDescriptors(), GlobalDescriptorsLength());
for (uint i = 0; i < gdesc.size(); i++)
{
str += MPEGDescriptor(gdesc[i], 300)
.toStringXML(indent_level + 1) + "\n";
}
for (uint i = 0; i < ChannelCount(); i++)
str += ChannelStringXML(indent_level + 1, i) + "\n";
return str + indent_0 + QString("</%1>").arg(section_name);
}
QString VirtualChannelTable::toString(void) const
{
QString str;
str.append(QString("%1 Virtual Channel Section\n%2"
" channel_count(%3) tsid(0x%4)")
.arg((TableID::TVCT == TableID()) ? "Terrestrial":"Cable")
.arg(PSIPTable::toString())
.arg(ChannelCount())
.arg(TransportStreamID(),4,16,QChar('0')));
if (TableID::CVCT == TableID())
{
uint sctemapid = (pesdata()[3]<<8) | pesdata()[4];
str.append(QString(" mapid(0x%1)").arg(sctemapid,0,16));
}
str.append("\n");
for (uint i = 0; i < ChannelCount(); i++)
str.append(ChannelString(i));
if (0 != GlobalDescriptorsLength())
{
str.append(QString("global descriptors length(%1) ")
.arg(GlobalDescriptorsLength()));
vector<const unsigned char*> desc =
MPEGDescriptor::Parse(GlobalDescriptors(),
GlobalDescriptorsLength());
str.append(QString("count: %1\n").arg(desc.size()));
for (uint i = 0; i < desc.size(); i++)
{
str.append(QString(" %1\n")
.arg(MPEGDescriptor(desc[i]).toString()));
}
}
return str;
}
