From f6e1539d43d2ffd4a7b9ee7691c9d7df84155bf8 Mon Sep 17 00:00:00 2001
From: seife <seife@e54a6e83-5905-42d5-8d5c-058d10e6a962>
Date: Sat, 20 Nov 2010 14:10:52 +0000
Subject: [PATCH] SIsections: add parsing of PDC descriptor (VPS time)

Tdd the VPS time to the event if available. Not yet used for anything
useful ;-)

git-svn-id: file:///home/bas/coolstream_public_svn/THIRDPARTY/applications/neutrino-experimental@888 e54a6e83-5905-42d5-8d5c-058d10e6a962
---
 src/sectionsd/SIevents.hpp   | 10 ++++++++++
 src/sectionsd/SIsections.cpp | 26 ++++++++++++++++++++++++++
 src/sectionsd/SIsections.hpp |  1 +
 3 files changed, 37 insertions(+)

diff --git a/src/sectionsd/SIevents.hpp b/src/sectionsd/SIevents.hpp
index a66a45516..c9e8eee8a 100644
--- a/src/sectionsd/SIevents.hpp
+++ b/src/sectionsd/SIevents.hpp
@@ -90,6 +90,14 @@ struct descr_linkage_header {
 	unsigned linkage_type			: 8;
 } __attribute__ ((packed)) ;
 
+struct descr_pdc_header {
+	unsigned descriptor_tag			: 8;
+	unsigned descriptor_length		: 8;
+	unsigned pil0				: 8;
+	unsigned pil1				: 8;
+	unsigned pil2				: 8;
+} __attribute__ ((packed)) ;
+
 class SIlinkage {
 public:
 	SIlinkage(const struct descr_linkage_header *link) {
@@ -344,6 +352,7 @@ public:
 		original_network_id = 0;
 		transport_stream_id = 0;
 		eventID    = 0;
+		vps = 0;
 //      dauer=0;
 //      startzeit=0;
 	}
@@ -383,6 +392,7 @@ public:
     SIparentalRatings ratings;
     SIlinkage_descs linkage_descs;
     SItimes times;
+    time_t vps;
     // Der Operator zum sortieren
     bool operator < (const SIevent& e) const {
       return uniqueKey()<e.uniqueKey();
diff --git a/src/sectionsd/SIsections.cpp b/src/sectionsd/SIsections.cpp
index d299e4ceb..af9074c8b 100644
--- a/src/sectionsd/SIsections.cpp
+++ b/src/sectionsd/SIsections.cpp
@@ -170,6 +170,30 @@ void SIsectionEIT::parseLinkageDescriptor(const char *buf, SIevent &e, unsigned
 	}
 }
 
+void SIsectionEIT::parsePDCDescriptor(const char *buf, SIevent &e, unsigned maxlen)
+{
+	if (maxlen >= sizeof(struct descr_pdc_header))
+	{
+		const struct descr_pdc_header *s = (struct descr_pdc_header *)buf;
+		time_t now = time(NULL);
+		struct tm tm_r;
+		struct tm t = *localtime_r(&now, &tm_r); // this initializes the time zone in 't'
+		t.tm_isdst = -1; // makes sure mktime() will determine the correct DST setting
+		int month = t.tm_mon;
+		t.tm_mon = ((s->pil1 >> 3) & 0x0F) - 1;
+		t.tm_mday = ((s->pil0 & 0x0F) << 1) | ((s->pil1 & 0x80) >> 7);
+		t.tm_hour = ((s->pil1 & 0x07) << 2) | ((s->pil2 & 0xC0) >> 6);
+		t.tm_min = s->pil2 & 0x3F;
+		t.tm_sec = 0;
+		if (month == 11 && t.tm_mon == 0) // current month is dec, but event is in jan
+		   t.tm_year++;
+		else if (month == 0 && t.tm_mon == 11) // current month is jan, but event is in dec
+		   t.tm_year--;
+		e.vps = mktime(&t);
+		// fprintf(stderr, "SIsectionEIT::parsePDCDescriptor: vps: %ld %s", e.vps, ctime(&e.vps));
+	}
+}
+
 void SIsectionEIT::parseComponentDescriptor(const char *buf, SIevent &e, unsigned maxlen)
 {
 	if(maxlen>=sizeof(struct descr_component_header))
@@ -454,6 +478,8 @@ void SIsectionEIT::parseDescriptors(const char *des, unsigned len, SIevent &e)
 			parseParentalRatingDescriptor((const char *)desc, e, len);
 		else if(desc->descriptor_tag==0x4A)
 			parseLinkageDescriptor((const char *)desc, e, len);
+		else if(desc->descriptor_tag==0x69)
+			parsePDCDescriptor((const char *)desc, e, len);
 		if((unsigned)(desc->descriptor_length+2)>len)
 			break;
 		len-=desc->descriptor_length+2;
diff --git a/src/sectionsd/SIsections.hpp b/src/sectionsd/SIsections.hpp
index 73b99c47d..9d497536d 100644
--- a/src/sectionsd/SIsections.hpp
+++ b/src/sectionsd/SIsections.hpp
@@ -544,6 +544,7 @@ protected:
 	void parseComponentDescriptor(const char *buf, SIevent &e, unsigned maxlen);
 	void parseParentalRatingDescriptor(const char *buf, SIevent &e, unsigned maxlen);
 	void parseLinkageDescriptor(const char *buf, SIevent &e, unsigned maxlen);
+	void parsePDCDescriptor(const char *buf, SIevent &e, unsigned maxlen);
 #ifdef ENABLE_FREESATEPG
 	std::string freesatHuffmanDecode(std::string input);
 #endif