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mirror of https://github.com/VDR4Arch/vdr.git synced 2023-10-10 13:36:52 +02:00

No longer permanently looping through PMT PIDs, which caused problems with some SatIP receivers

This commit is contained in:
Klaus Schmidinger 2021-06-08 14:57:26 +02:00
parent 58e21d8e37
commit 7b1c097958
5 changed files with 193 additions and 62 deletions

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@ -2343,6 +2343,7 @@ Andr
for reporting a bug in selecting the last replayed recording in the Recordings menu
in case there are folders and plain recordings with names that differ only in
non-alphanumeric characters
for reporting a problem with permanently looping through PMT PIDs on a SatIP receiver
Jürgen Schilling <juergen_schilling@web.de>
for reporting that color buttons were displayed in the recording info menu if it

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@ -9706,7 +9706,7 @@ Video Disk Recorder Revision History
order to restore this functionality. However, it is recommended to use the function
with the TimerActive parameter instead.
2021-05-26:
2021-06-08:
- cRecordingInfo::Errors() now returns -1 for old recordings; added a missing 'const'
(suggested by Christoph Haubrich).
@ -9714,3 +9714,5 @@ Video Disk Recorder Revision History
- Added missing initialization of cRecorder::lastErrors.
- Now using __cplusplus instead of DISABLE_TEMPLATES_COLLIDING_WITH_STL, and using
std::min(), std::max() and std::swap() if available (thanks to Winfried Köhler).
- No longer permanently looping through PMT PIDs, which caused problems with some
SatIP receivers (reported by André Weidemann; with help from Helmut Binder).

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@ -4,7 +4,7 @@
* See the main source file 'vdr.c' for copyright information and
* how to reach the author.
*
* $Id: device.c 5.2 2021/03/17 10:59:36 kls Exp $
* $Id: device.c 5.3 2021/06/08 14:57:26 kls Exp $
*/
#include "device.h"
@ -858,6 +858,13 @@ eSetChannelResult cDevice::SetChannel(const cChannel *Channel, bool LiveView)
cStatus::MsgChannelSwitch(this, 0, LiveView);
if (LiveView) {
if (IsPrimaryDevice() && !Replaying() && !Transferring()) { // this is only for FF DVB cards!
LOCK_CHANNELS_READ;
if (const cChannel *ch = Channels->GetByNumber(currentChannel)) {
if (patFilter)
patFilter->Release(ch->Sid());
}
}
StopReplay();
DELETENULL(liveSubtitle);
DELETENULL(dvbSubtitleConverter);
@ -898,8 +905,6 @@ eSetChannelResult cDevice::SetChannel(const cChannel *Channel, bool LiveView)
if (SetChannelDevice(Channel, LiveView)) {
// Start section handling:
if (sectionHandler) {
if (patFilter)
patFilter->Trigger(Channel->Sid());
sectionHandler->SetChannel(Channel);
sectionHandler->SetStatus(true);
}
@ -913,6 +918,8 @@ eSetChannelResult cDevice::SetChannel(const cChannel *Channel, bool LiveView)
if (Result == scrOk) {
if (LiveView && IsPrimaryDevice()) {
if (patFilter) // this is only for FF DVB cards!
patFilter->Request(Channel->Sid());
currentChannel = Channel->Number();
// Set the available audio tracks:
ClrAvailableTracks();
@ -1807,6 +1814,8 @@ bool cDevice::AttachReceiver(cReceiver *Receiver)
dsyslog("CAM %d: %sknown to decrypt channel %s (scramblingTimeout = %ds)", camSlot->MasterSlotNumber(), KnownToDecrypt ? "" : "not ", *Receiver->ChannelID().ToString(), Receiver->scramblingTimeout);
}
}
if (patFilter && Receiver->ChannelID().Valid())
patFilter->Request(Receiver->ChannelID().Sid());
Start();
return true;
}
@ -1827,6 +1836,8 @@ void cDevice::Detach(cReceiver *Receiver)
else if (receiver[i])
receiversLeft = true;
}
if (patFilter && Receiver->ChannelID().Valid())
patFilter->Release(Receiver->ChannelID().Sid());
mutexReceiver.Unlock();
Receiver->device = NULL;
Receiver->Activate(false);

209
pat.c
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@ -4,7 +4,7 @@
* See the main source file 'vdr.c' for copyright information and
* how to reach the author.
*
* $Id: pat.c 5.1 2021/03/16 15:10:54 kls Exp $
* $Id: pat.c 5.2 2021/06/08 14:57:26 kls Exp $
*/
#include "pat.h"
@ -285,10 +285,20 @@ int GetPmtPid(int Source, int Transponder, int ServiceId)
class cPmtPidEntry : public cListObject {
private:
int pid;
bool complete;
int count; // the number of SIDs currently requested from this PID
int state; // adding/deleting PIDs to/from the filter may only be done from within the Process() function,
// otherwise there could be a deadlock between cPatFilter::mutex and cSectionHandler::mutex;
// this member tells whether this PID needs to be added to (>0) or deleted from (<0) the filter
bool complete; // true if all SIDs on this PID have been received
public:
cPmtPidEntry(int Pid);
int Pid(void) { return pid; }
int Count(void) { return count; }
int State(void) { int s = state; state = 0; return s; } // returns the current state and resets it
void SetState(void) { state = 1; }
void ClrState(void) { state = -1; }
void Inc(void) { if (++count == 1) state = 1; }
void Dec(void) { if (--count == 0) state = -1; }
int Complete(void) { return complete; }
void SetComplete(bool State) { complete = State; }
};
@ -296,6 +306,8 @@ public:
cPmtPidEntry::cPmtPidEntry(int Pid)
{
pid = Pid;
count = 0;
state = 0;
complete = false;
}
@ -309,7 +321,7 @@ private:
int version;
bool received;
public:
cPmtSidEntry(int Sid, int Pid, cPmtPidEntry *PidEntry);
cPmtSidEntry(int Sid, cPmtPidEntry *PidEntry);
int Sid(void) { return sid; }
int Pid(void) { return pid; }
cPmtPidEntry *PidEntry(void) { return pidEntry; }
@ -319,15 +331,29 @@ public:
void SetReceived(bool State) { received = State; }
};
cPmtSidEntry::cPmtSidEntry(int Sid, int Pid, cPmtPidEntry *PidEntry)
cPmtSidEntry::cPmtSidEntry(int Sid, cPmtPidEntry *PidEntry)
{
sid = Sid;
pid = Pid;
pid = PidEntry->Pid();
pidEntry = PidEntry;
version = -1;
received = false;
}
// --- cPmtSidRequest --------------------------------------------------------
class cPmtSidRequest : public cListObject {
private:
int sid;
int count; // the number of requests for this SID
public:
cPmtSidRequest(int Sid) { sid = Sid; count = 1; }
int Sid(void) { return sid; }
int Count(void) { return count; }
void Inc(void) { count++; }
void Dec(void) { count--; }
};
// --- cPatFilter ------------------------------------------------------------
//#define DEBUG_PAT_PMT
@ -339,30 +365,93 @@ cPmtSidEntry::cPmtSidEntry(int Sid, int Pid, cPmtPidEntry *PidEntry)
cPatFilter::cPatFilter(void)
{
Trigger(0);
patVersion = -1;
activePmt = NULL;
transponder = 0;
source = 0;
Set(0x00, 0x00); // PAT
}
void cPatFilter::SetStatus(bool On)
bool cPatFilter::TransponderChanged(void)
{
cMutexLock MutexLock(&mutex);
DBGLOG("PAT filter set status %d", On);
cFilter::SetStatus(On);
Trigger();
if (source != Source() || transponder != Transponder()) {
DBGLOG("PAT filter transponder changed from %d/%d to %d/%d", source, transponder, Source(), Transponder());
source = Source();
transponder = Transponder();
return true;
}
return false;
}
void cPatFilter::Trigger(int Sid)
void cPatFilter::Trigger(int)
{
cMutexLock MutexLock(&mutex);
patVersion = -1;
sectionSyncer.Reset();
if (Sid != 0 && activePmt)
Del(activePmt->Pid(), SI::TableIdPMT);
activePmt = NULL;
if (Sid >= 0) {
sid = Sid;
DBGLOG("PAT filter trigger SID %d", Sid);
DBGLOG("PAT filter trigger");
if (activePmt != pmtPidList.First()) {
if (activePmt && activePmt->Count() == 0)
activePmt->ClrState();
activePmt = pmtPidList.First();
if (activePmt && activePmt->Count() == 0) {
activePmt->SetState();
timer.Set(PMT_SCAN_TIMEOUT);
}
}
}
void cPatFilter::Request(int Sid)
{
cMutexLock MutexLock(&mutex);
DBGLOG("PAT filter request SID %d", Sid);
for (cPmtSidRequest *sr = pmtSidRequestList.First(); sr; sr = pmtSidRequestList.Next(sr)) {
if (sr->Sid() == Sid) {
sr->Inc();
DBGLOG("PAT filter add SID request %d (%d)", Sid, sr->Count());
return;
}
}
DBGLOG("PAT filter new SID request %d", Sid);
pmtSidRequestList.Add(new cPmtSidRequest(Sid));
for (cPmtSidEntry *se = pmtSidList.First(); se; se = pmtSidList.Next(se)) {
if (se->Sid() == Sid) {
cPmtPidEntry *pPid = se->PidEntry();
pPid->Inc();
DBGLOG(" PMT pid %5d SID %5d (%d)", pPid->Pid(), se->Sid(), pPid->Count());
break;
}
}
}
void cPatFilter::Release(int Sid)
{
cMutexLock MutexLock(&mutex);
DBGLOG("PAT filter release SID %d", Sid);
for (cPmtSidRequest *sr = pmtSidRequestList.First(); sr; sr = pmtSidRequestList.Next(sr)) {
if (sr->Sid() == Sid) {
sr->Dec();
DBGLOG("PAT filter del SID request %d (%d)", Sid, sr->Count());
if (sr->Count() == 0) {
pmtSidRequestList.Del(sr);
for (cPmtSidEntry *se = pmtSidList.First(); se; se = pmtSidList.Next(se)) {
if (se->Sid() == Sid) {
cPmtPidEntry *pPid = se->PidEntry();
pPid->Dec();
DBGLOG(" PMT pid %5d SID %5d (%d)", pPid->Pid(), se->Sid(), pPid->Count());
break;
}
}
}
break;
}
}
}
int cPatFilter::NumSidRequests(int Sid)
{
for (cPmtSidRequest *sr = pmtSidRequestList.First(); sr; sr = pmtSidRequestList.Next(sr)) {
if (sr->Sid() == Sid)
return sr->Count();
}
return 0;
}
bool cPatFilter::PmtPidComplete(int PmtPid)
@ -377,15 +466,16 @@ bool cPatFilter::PmtPidComplete(int PmtPid)
void cPatFilter::PmtPidReset(int PmtPid)
{
for (cPmtSidEntry *se = pmtSidList.First(); se; se = pmtSidList.Next(se)) {
if (se->Pid() == PmtPid)
if (se->Pid() == PmtPid) {
se->SetReceived(false);
se->PidEntry()->SetComplete(false);
}
}
}
bool cPatFilter::PmtVersionChanged(int PmtPid, int Sid, int Version, bool SetNewVersion)
{
int i = 0;
for (cPmtSidEntry *se = pmtSidList.First(); se; se = pmtSidList.Next(se), i++) {
for (cPmtSidEntry *se = pmtSidList.First(); se; se = pmtSidList.Next(se)) {
if (se->Sid() == Sid && se->Pid() == PmtPid) {
if (!se->Received()) {
se->SetReceived(true);
@ -395,7 +485,7 @@ bool cPatFilter::PmtVersionChanged(int PmtPid, int Sid, int Version, bool SetNew
if (SetNewVersion)
se->SetVersion(Version);
else
DBGLOG("PMT %d %2d %5d/%d %2d -> %2d", Transponder(), i, PmtPid, Sid, se->Version(), Version);
DBGLOG("PMT %d %5d/%5d %2d -> %2d %d", Transponder(), PmtPid, Sid, se->Version(), Version, NumSidRequests(Sid));
return true;
}
break;
@ -407,18 +497,39 @@ bool cPatFilter::PmtVersionChanged(int PmtPid, int Sid, int Version, bool SetNew
void cPatFilter::SwitchToNextPmtPid(void)
{
if (activePmt) {
if (activePmt->Count() == 0)
Del(activePmt->Pid(), SI::TableIdPMT);
if (!(activePmt = pmtPidList.Next(activePmt)))
activePmt = pmtPidList.First();
for (;;) {
activePmt = pmtPidList.Next(activePmt);
if (!activePmt || activePmt->Count() == 0)
break;
}
if (activePmt) {
PmtPidReset(activePmt->Pid());
activePmt->SetComplete(false);
Add(activePmt->Pid(), SI::TableIdPMT);
timer.Set(PMT_SCAN_TIMEOUT);
}
}
}
void cPatFilter::Process(u_short Pid, u_char Tid, const u_char *Data, int Length)
{
cMutexLock MutexLock(&mutex);
if (TransponderChanged()) {
patVersion = -1;
sectionSyncer.Reset();
}
if (patVersion >= 0) {
for (cPmtPidEntry *pPid = pmtPidList.First(); pPid; pPid = pmtPidList.Next(pPid)) {
int State = pPid->State();
if (State > 0)
Add(pPid->Pid(), SI::TableIdPMT);
else if (State < 0)
Del(pPid->Pid(), SI::TableIdPMT);
}
}
else if (Pid != 0x00)
return;
if (Pid == 0x00) {
if (Tid == SI::TableIdPAT) {
SI::PAT pat(Data, false);
@ -426,13 +537,11 @@ void cPatFilter::Process(u_short Pid, u_char Tid, const u_char *Data, int Length
return;
if (sectionSyncer.Check(pat.getVersionNumber(), pat.getSectionNumber())) {
DBGLOG("PAT %d %d -> %d %d/%d", Transponder(), patVersion, pat.getVersionNumber(), pat.getSectionNumber(), pat.getLastSectionNumber());
bool NeedsSetStatus = patVersion >= 0;
if (pat.getVersionNumber() != patVersion) {
if (pat.getLastSectionNumber() > 0)
DBGLOG(" PAT %d: %d sections", Transponder(), pat.getLastSectionNumber() + 1);
if (activePmt) {
Del(activePmt->Pid(), SI::TableIdPMT);
if (NeedsSetStatus)
SetStatus(false); // deletes all PIDs from the filter
activePmt = NULL;
}
pmtSidList.Clear();
pmtPidList.Clear();
patVersion = pat.getVersionNumber();
@ -441,36 +550,39 @@ void cPatFilter::Process(u_short Pid, u_char Tid, const u_char *Data, int Length
for (SI::Loop::Iterator it; pat.associationLoop.getNext(assoc, it); ) {
if (!assoc.isNITPid()) {
int PmtPid = assoc.getPid();
int PmtSid = assoc.getServiceId();
cPmtPidEntry *pPid = NULL;
int PidIndex = 0;
for (pPid = pmtPidList.First(); pPid && pPid->Pid() != PmtPid; pPid = pmtPidList.Next(pPid))
PidIndex++;
for (pPid = pmtPidList.First(); pPid; pPid = pmtPidList.Next(pPid)) {
if (pPid->Pid() == PmtPid)
break;
}
int SidRequest = NumSidRequests(PmtSid);
DBGLOG(" PMT pid %5d SID %5d%s%s", PmtPid, PmtSid, SidRequest ? " R" : "", pPid ? " S" : "");
if (!pPid) { // new PMT Pid
pPid = new cPmtPidEntry(PmtPid);
pmtPidList.Add(pPid);
}
pmtSidList.Add(new cPmtSidEntry(assoc.getServiceId(), PmtPid, pPid));
DBGLOG(" PMT pid %2d/%2d %5d SID %5d", PidIndex, pmtSidList.Count() - 1, PmtPid, assoc.getServiceId());
if (sid == assoc.getServiceId()) {
activePmt = pPid;
DBGLOG("sid = %d pidIndex = %d", sid, PidIndex);
}
pmtSidList.Add(new cPmtSidEntry(PmtSid, pPid));
if (SidRequest > 0)
pPid->Inc();
}
}
if (sectionSyncer.Processed(pat.getSectionNumber(), pat.getLastSectionNumber())) { // all PAT sections done
if (pmtPidList.Count() != pmtSidList.Count())
DBGLOG(" PAT %d: shared PMT PIDs", Transponder());
if (pmtSidList.Count() && !activePmt)
activePmt = pmtPidList.First();
if (activePmt)
Add(activePmt->Pid(), SI::TableIdPMT);
for (cPmtPidEntry *pPid = pmtPidList.First(); pPid; pPid = pmtPidList.Next(pPid)) {
if (pPid->Count() == 0) {
pPid->SetState();
activePmt = pPid;
timer.Set(PMT_SCAN_TIMEOUT);
break;
}
}
if (NeedsSetStatus)
SetStatus(true);
}
}
}
}
else if (Tid == SI::TableIdPMT && Source() && Transponder()) {
timer.Set(PMT_SCAN_TIMEOUT);
SI::PMT pmt(Data, false);
if (!pmt.CheckCRCAndParse())
return;
@ -731,6 +843,5 @@ void cPatFilter::Process(u_short Pid, u_char Tid, const u_char *Data, int Length
if (activePmt)
DBGLOG("PMT timeout Pid %d", activePmt->Pid());
SwitchToNextPmtPid();
timer.Set(PMT_SCAN_TIMEOUT);
}
}

14
pat.h
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@ -4,7 +4,7 @@
* See the main source file 'vdr.c' for copyright information and
* how to reach the author.
*
* $Id: pat.h 4.2 2020/06/19 12:19:15 kls Exp $
* $Id: pat.h 5.1 2021/06/08 14:57:26 kls Exp $
*/
#ifndef __PAT_H
@ -16,27 +16,33 @@
class cPmtPidEntry;
class cPmtSidEntry;
class cPmtSidRequest;
class cPatFilter : public cFilter {
private:
cMutex mutex;
cTimeMs timer;
int patVersion;
int sid;
cPmtPidEntry *activePmt;
cList<cPmtPidEntry> pmtPidList;
cList<cPmtSidEntry> pmtSidList;
cList<cPmtSidRequest> pmtSidRequestList;
int source;
int transponder;
cSectionSyncer sectionSyncer;
bool TransponderChanged(void);
bool PmtPidComplete(int PmtPid);
void PmtPidReset(int PmtPid);
bool PmtVersionChanged(int PmtPid, int Sid, int Version, bool SetNewVersion = false);
int NumSidRequests(int Sid);
void SwitchToNextPmtPid(void);
protected:
virtual void Process(u_short Pid, u_char Tid, const u_char *Data, int Length);
public:
cPatFilter(void);
virtual void SetStatus(bool On);
void Trigger(int Sid = -1);
void Trigger(int); // triggers reading the PMT PIDs that are currently not requested (dummy parameter for backwards compatibility, value is ignored)
void Request(int Sid); // requests permanent reading of the PMT PID for this SID
void Release(int Sid); // releases permanent reading of the PMT PID for this SID
};
void GetCaDescriptors(int Source, int Transponder, int ServiceId, const int *CaSystemIds, cDynamicBuffer &Buffer, int EsPid);