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-rw-r--r--HISTORY1
-rw-r--r--filter.c29
-rw-r--r--filter.h12
-rw-r--r--sdt.c70
-rw-r--r--sdt.h4
5 files changed, 68 insertions, 48 deletions
diff --git a/HISTORY b/HISTORY
index 3361dd2c..e2033377 100644
--- a/HISTORY
+++ b/HISTORY
@@ -2554,3 +2554,4 @@ Video Disk Recorder Revision History
Volkenandt for reporting this one).
- Changed calculation of channel ids to make it work for tv stations that use
the undefined NID value 0 (thanks to Teemu Rantanen for reporting this one).
+- Enhanced the SDT filter to handle multi part sections.
diff --git a/filter.c b/filter.c
index 668b7d3a..56054d36 100644
--- a/filter.c
+++ b/filter.c
@@ -4,12 +4,39 @@
* See the main source file 'vdr.c' for copyright information and
* how to reach the author.
*
- * $Id: filter.c 1.1 2003/12/21 15:26:16 kls Exp $
+ * $Id: filter.c 1.2 2004/01/05 14:30:00 kls Exp $
*/
#include "filter.h"
#include "sections.h"
+// --- cSectionSyncer --------------------------------------------------------
+
+cSectionSyncer::cSectionSyncer(void)
+{
+ Reset();
+}
+
+void cSectionSyncer::Reset(void)
+{
+ lastVersion = 0xFF;
+ synced = false;
+}
+
+bool cSectionSyncer::Sync(uchar Version, int Number, int LastNumber)
+{
+ if (Version == lastVersion)
+ return false;
+ if (!synced) {
+ if (Number != 0)
+ return false; // sync on first section
+ synced = true;
+ }
+ if (Number == LastNumber)
+ lastVersion = Version;
+ return synced;
+}
+
// --- cFilterData -----------------------------------------------------------
cFilterData::cFilterData(void)
diff --git a/filter.h b/filter.h
index 09703e02..1696e6e2 100644
--- a/filter.h
+++ b/filter.h
@@ -4,7 +4,7 @@
* See the main source file 'vdr.c' for copyright information and
* how to reach the author.
*
- * $Id: filter.h 1.1 2003/12/22 11:41:40 kls Exp $
+ * $Id: filter.h 1.2 2004/01/05 14:29:49 kls Exp $
*/
#ifndef __FILTER_H
@@ -13,6 +13,16 @@
#include <sys/types.h>
#include "tools.h"
+class cSectionSyncer {
+private:
+ int lastVersion;
+ bool synced;
+public:
+ cSectionSyncer(void);
+ void Reset(void);
+ bool Sync(uchar Version, int Number, int LastNumber);
+ };
+
class cFilterData : public cListObject {
public:
u_short pid;
diff --git a/sdt.c b/sdt.c
index 9ede48dd..33e458a7 100644
--- a/sdt.c
+++ b/sdt.c
@@ -4,7 +4,7 @@
* See the main source file 'vdr.c' for copyright information and
* how to reach the author.
*
- * $Id: sdt.c 1.2 2004/01/05 11:40:24 kls Exp $
+ * $Id: sdt.c 1.3 2004/01/05 14:30:31 kls Exp $
*/
#include "sdt.h"
@@ -13,34 +13,38 @@
#include "libsi/section.h"
#include "libsi/descriptor.h"
-// --- cSDT ------------------------------------------------------------------
+// --- cSdtFilter ------------------------------------------------------------
-class cSDT : public SI::SDT {
-public:
- cSDT(int Source, int Transponder, uchar &lastSdtVersion, cPatFilter *PatFilter, const u_char *Data);
- };
+cSdtFilter::cSdtFilter(cPatFilter *PatFilter)
+{
+ patFilter = PatFilter;
+ Set(0x11, 0x42); // SDT
+}
-cSDT::cSDT(int Source, int Transponder, uchar &lastSdtVersion, cPatFilter *PatFilter, const u_char *Data)
-:SI::SDT(Data, false)
+void cSdtFilter::SetStatus(bool On)
{
- if (!CheckCRCAndParse())
- return;
+ cFilter::SetStatus(On);
+ sectionSyncer.Reset();
+}
- if (getVersionNumber() == lastSdtVersion)
+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;
-
- lastSdtVersion = getVersionNumber();
-
SI::SDT::Service SiSdtService;
- for (SI::Loop::Iterator it; serviceLoop.hasNext(it); ) {
- SiSdtService = serviceLoop.getNext(it);
+ for (SI::Loop::Iterator it; sdt.serviceLoop.hasNext(it); ) {
+ SiSdtService = sdt.serviceLoop.getNext(it);
- cChannel *Channel = Channels.GetByChannelID(tChannelID(Source, getOriginalNetworkId(), getTransportStreamId(), SiSdtService.getServiceId()));
+ cChannel *Channel = Channels.GetByChannelID(tChannelID(Source(), sdt.getOriginalNetworkId(), sdt.getTransportStreamId(), SiSdtService.getServiceId()));
if (!Channel)
- Channel = Channels.GetByChannelID(tChannelID(Source, 0, Transponder, SiSdtService.getServiceId()));
+ Channel = Channels.GetByChannelID(tChannelID(Source(), 0, Transponder(), SiSdtService.getServiceId()));
SI::Descriptor *d;
for (SI::Loop::Iterator it2; (d = SiSdtService.serviceDescriptors.getNext(it2)); ) {
@@ -80,7 +84,7 @@ cSDT::cSDT(int Source, int Transponder, uchar &lastSdtVersion, cPatFilter *PatFi
pn = ShortNameBuf;
}
if (Channel) {
- Channel->SetId(getOriginalNetworkId(), getTransportStreamId(), SiSdtService.getServiceId());
+ Channel->SetId(sdt.getOriginalNetworkId(), sdt.getTransportStreamId(), SiSdtService.getServiceId());
if (Setup.UpdateChannels >= 1)
Channel->SetName(pn);
// Using SiSdtService.getFreeCaMode() is no good, because some
@@ -90,8 +94,8 @@ cSDT::cSDT(int Source, int Transponder, uchar &lastSdtVersion, cPatFilter *PatFi
// Channel->SetCa(SiSdtService.getFreeCaMode() ? 0xFFFF : 0);
}
else if (*pn && Setup.UpdateChannels >= 3) {
- Channel = Channels.NewChannel(Source, Transponder, pn, getOriginalNetworkId(), getTransportStreamId(), SiSdtService.getServiceId());
- PatFilter->Trigger();
+ Channel = Channels.NewChannel(Source(), Transponder(), pn, sdt.getOriginalNetworkId(), sdt.getTransportStreamId(), SiSdtService.getServiceId());
+ patFilter->Trigger();
}
}
}
@@ -124,25 +128,3 @@ cSDT::cSDT(int Source, int Transponder, uchar &lastSdtVersion, cPatFilter *PatFi
}
Channels.Unlock();
}
-
-
-// --- cSdtFilter ------------------------------------------------------------
-
-cSdtFilter::cSdtFilter(cPatFilter *PatFilter)
-{
- lastSdtVersion = 0xFF;
- patFilter = PatFilter;
- Set(0x11, 0x42); // SDT
-}
-
-void cSdtFilter::SetStatus(bool On)
-{
- cFilter::SetStatus(On);
- lastSdtVersion = 0xFF;
-}
-
-void cSdtFilter::Process(u_short Pid, u_char Tid, const u_char *Data, int Length)
-{
- if (Source() && Transponder())
- cSDT SDT(Source(), Transponder(), lastSdtVersion, patFilter, Data);
-}
diff --git a/sdt.h b/sdt.h
index 8d75f3c7..a427119c 100644
--- a/sdt.h
+++ b/sdt.h
@@ -4,7 +4,7 @@
* See the main source file 'vdr.c' for copyright information and
* how to reach the author.
*
- * $Id: sdt.h 1.1 2004/01/03 13:49:55 kls Exp $
+ * $Id: sdt.h 1.2 2004/01/05 14:30:14 kls Exp $
*/
#ifndef __SDT_H
@@ -15,7 +15,7 @@
class cSdtFilter : public cFilter {
private:
- uchar lastSdtVersion;
+ cSectionSyncer sectionSyncer;
cPatFilter *patFilter;
protected:
virtual void Process(u_short Pid, u_char Tid, const u_char *Data, int Length);
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-26 20:08:16 +0000