mirror of https://github.com/VDR4Arch/vdr.git
737 lines
28 KiB
C
737 lines
28 KiB
C
/*
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* pat.c: PAT section filter
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*
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* See the main source file 'vdr.c' for copyright information and
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* how to reach the author.
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*
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* $Id: pat.c 5.1 2021/03/16 15:10:54 kls Exp $
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*/
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#include "pat.h"
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#include <malloc.h>
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#include "channels.h"
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#include "libsi/section.h"
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#include "libsi/descriptor.h"
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#define PMT_SCAN_TIMEOUT 1000 // ms
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// --- cCaDescriptor ---------------------------------------------------------
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class cCaDescriptor : public cListObject {
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private:
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int caSystem;
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int caPid;
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int esPid;
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int length;
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uchar *data;
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public:
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cCaDescriptor(int CaSystem, int CaPid, int EsPid, int Length, const uchar *Data);
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virtual ~cCaDescriptor();
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bool operator== (const cCaDescriptor &arg) const;
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int CaSystem(void) { return caSystem; }
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int CaPid(void) { return caPid; }
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int EsPid(void) { return esPid; }
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int Length(void) const { return length; }
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const uchar *Data(void) const { return data; }
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};
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cCaDescriptor::cCaDescriptor(int CaSystem, int CaPid, int EsPid, int Length, const uchar *Data)
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{
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caSystem = CaSystem;
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caPid = CaPid;
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esPid = EsPid;
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length = Length + 6;
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data = MALLOC(uchar, length);
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data[0] = SI::CaDescriptorTag;
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data[1] = length - 2;
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data[2] = (caSystem >> 8) & 0xFF;
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data[3] = caSystem & 0xFF;
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data[4] = ((CaPid >> 8) & 0x1F) | 0xE0;
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data[5] = CaPid & 0xFF;
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if (Length)
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memcpy(&data[6], Data, Length);
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}
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cCaDescriptor::~cCaDescriptor()
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{
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free(data);
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}
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bool cCaDescriptor::operator== (const cCaDescriptor &arg) const
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{
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return esPid == arg.esPid && length == arg.length && memcmp(data, arg.data, length) == 0;
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}
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// --- cCaDescriptors --------------------------------------------------------
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class cCaDescriptors : public cListObject {
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private:
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int source;
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int transponder;
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int serviceId;
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int pmtPid; // needed for OctopusNet - otherwise irrelevant!
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int numCaIds;
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int caIds[MAXCAIDS + 1];
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cList<cCaDescriptor> caDescriptors;
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void AddCaId(int CaId);
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public:
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cCaDescriptors(int Source, int Transponder, int ServiceId, int PmtPid);
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bool operator== (const cCaDescriptors &arg) const;
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bool Is(int Source, int Transponder, int ServiceId);
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bool Is(cCaDescriptors * CaDescriptors);
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bool Empty(void) { return caDescriptors.Count() == 0; }
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void AddCaDescriptor(SI::CaDescriptor *d, int EsPid);
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void GetCaDescriptors(const int *CaSystemIds, cDynamicBuffer &Buffer, int EsPid);
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int GetCaPids(const int *CaSystemIds, int BufSize, int *Pids);
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const int GetPmtPid(void) { return pmtPid; };
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const int *CaIds(void) { return caIds; }
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};
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cCaDescriptors::cCaDescriptors(int Source, int Transponder, int ServiceId, int PmtPid)
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{
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source = Source;
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transponder = Transponder;
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serviceId = ServiceId;
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pmtPid = PmtPid;
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numCaIds = 0;
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caIds[0] = 0;
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}
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bool cCaDescriptors::operator== (const cCaDescriptors &arg) const
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{
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const cCaDescriptor *ca1 = caDescriptors.First();
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const cCaDescriptor *ca2 = arg.caDescriptors.First();
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while (ca1 && ca2) {
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if (!(*ca1 == *ca2))
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return false;
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ca1 = caDescriptors.Next(ca1);
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ca2 = arg.caDescriptors.Next(ca2);
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}
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return !ca1 && !ca2;
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}
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bool cCaDescriptors::Is(int Source, int Transponder, int ServiceId)
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{
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return source == Source && transponder == Transponder && serviceId == ServiceId;
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}
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bool cCaDescriptors::Is(cCaDescriptors *CaDescriptors)
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{
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return Is(CaDescriptors->source, CaDescriptors->transponder, CaDescriptors->serviceId);
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}
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void cCaDescriptors::AddCaId(int CaId)
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{
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if (numCaIds < MAXCAIDS) {
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for (int i = 0; i < numCaIds; i++) {
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if (caIds[i] == CaId)
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return;
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}
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caIds[numCaIds++] = CaId;
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caIds[numCaIds] = 0;
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}
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}
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void cCaDescriptors::AddCaDescriptor(SI::CaDescriptor *d, int EsPid)
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{
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cCaDescriptor *nca = new cCaDescriptor(d->getCaType(), d->getCaPid(), EsPid, d->privateData.getLength(), d->privateData.getData());
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for (cCaDescriptor *ca = caDescriptors.First(); ca; ca = caDescriptors.Next(ca)) {
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if (*ca == *nca) {
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delete nca;
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return;
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}
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}
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AddCaId(nca->CaSystem());
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caDescriptors.Add(nca);
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//#define DEBUG_CA_DESCRIPTORS 1
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#ifdef DEBUG_CA_DESCRIPTORS
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char buffer[1024];
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char *q = buffer;
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q += sprintf(q, "CAM: %04X %5d %5d %04X %04X -", source, transponder, serviceId, d->getCaType(), EsPid);
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for (int i = 0; i < nca->Length(); i++)
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q += sprintf(q, " %02X", nca->Data()[i]);
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dsyslog("%s", buffer);
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#endif
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}
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// EsPid is to select the "type" of CaDescriptor to be returned
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// >0 - CaDescriptor for the particular esPid
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// =0 - common CaDescriptor
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// <0 - all CaDescriptors regardless of type (old default)
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void cCaDescriptors::GetCaDescriptors(const int *CaSystemIds, cDynamicBuffer &Buffer, int EsPid)
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{
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Buffer.Clear();
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if (!CaSystemIds || !*CaSystemIds)
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return;
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for (cCaDescriptor *d = caDescriptors.First(); d; d = caDescriptors.Next(d)) {
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if (EsPid < 0 || d->EsPid() == EsPid) {
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const int *caids = CaSystemIds;
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do {
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if (*caids == 0xFFFF || d->CaSystem() == *caids)
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Buffer.Append(d->Data(), d->Length());
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} while (*++caids);
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}
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}
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}
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int cCaDescriptors::GetCaPids(const int *CaSystemIds, int BufSize, int *Pids)
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{
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if (!CaSystemIds || !*CaSystemIds)
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return 0;
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if (BufSize > 0 && Pids) {
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int numPids = 0;
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for (cCaDescriptor *d = caDescriptors.First(); d; d = caDescriptors.Next(d)) {
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const int *caids = CaSystemIds;
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do {
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if (*caids == 0xFFFF || d->CaSystem() == *caids) {
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if (numPids + 1 < BufSize) {
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Pids[numPids++] = d->CaPid();
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Pids[numPids] = 0;
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}
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else
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return -1;
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}
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} while (*++caids);
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}
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return numPids;
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}
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return -1;
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}
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// --- cCaDescriptorHandler --------------------------------------------------
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class cCaDescriptorHandler : public cList<cCaDescriptors> {
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private:
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cMutex mutex;
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public:
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int AddCaDescriptors(cCaDescriptors *CaDescriptors);
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// Returns 0 if this is an already known descriptor,
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// 1 if it is an all new descriptor with actual contents,
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// and 2 if an existing descriptor was changed.
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void GetCaDescriptors(int Source, int Transponder, int ServiceId, const int *CaSystemIds, cDynamicBuffer &Buffer, int EsPid);
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int GetCaPids(int Source, int Transponder, int ServiceId, const int *CaSystemIds, int BufSize, int *Pids);
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int GetPmtPid(int Source, int Transponder, int ServiceId);
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};
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int cCaDescriptorHandler::AddCaDescriptors(cCaDescriptors *CaDescriptors)
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{
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cMutexLock MutexLock(&mutex);
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for (cCaDescriptors *ca = First(); ca; ca = Next(ca)) {
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if (ca->Is(CaDescriptors)) {
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if (*ca == *CaDescriptors) {
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delete CaDescriptors;
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return 0;
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}
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Del(ca);
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Add(CaDescriptors);
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return 2;
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}
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}
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Add(CaDescriptors);
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return CaDescriptors->Empty() ? 0 : 1;
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}
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void cCaDescriptorHandler::GetCaDescriptors(int Source, int Transponder, int ServiceId, const int *CaSystemIds, cDynamicBuffer &Buffer, int EsPid)
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{
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cMutexLock MutexLock(&mutex);
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for (cCaDescriptors *ca = First(); ca; ca = Next(ca)) {
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if (ca->Is(Source, Transponder, ServiceId)) {
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ca->GetCaDescriptors(CaSystemIds, Buffer, EsPid);
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break;
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}
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}
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}
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int cCaDescriptorHandler::GetCaPids(int Source, int Transponder, int ServiceId, const int *CaSystemIds, int BufSize, int *Pids)
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{
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cMutexLock MutexLock(&mutex);
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for (cCaDescriptors *ca = First(); ca; ca = Next(ca)) {
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if (ca->Is(Source, Transponder, ServiceId))
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return ca->GetCaPids(CaSystemIds, BufSize, Pids);
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}
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return 0;
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}
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int cCaDescriptorHandler::GetPmtPid(int Source, int Transponder, int ServiceId)
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{
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cMutexLock MutexLock(&mutex);
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for (cCaDescriptors *ca = First(); ca; ca = Next(ca)) {
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if (ca->Is(Source, Transponder, ServiceId))
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return ca->GetPmtPid();
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}
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return 0;
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}
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cCaDescriptorHandler CaDescriptorHandler;
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void GetCaDescriptors(int Source, int Transponder, int ServiceId, const int *CaSystemIds, cDynamicBuffer &Buffer, int EsPid)
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{
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CaDescriptorHandler.GetCaDescriptors(Source, Transponder, ServiceId, CaSystemIds, Buffer, EsPid);
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}
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int GetCaPids(int Source, int Transponder, int ServiceId, const int *CaSystemIds, int BufSize, int *Pids)
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{
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return CaDescriptorHandler.GetCaPids(Source, Transponder, ServiceId, CaSystemIds, BufSize, Pids);
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}
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int GetPmtPid(int Source, int Transponder, int ServiceId)
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{
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return CaDescriptorHandler.GetPmtPid(Source, Transponder, ServiceId);
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}
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// --- cPmtPidEntry ----------------------------------------------------------
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class cPmtPidEntry : public cListObject {
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private:
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int pid;
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bool complete;
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public:
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cPmtPidEntry(int Pid);
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int Pid(void) { return pid; }
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int Complete(void) { return complete; }
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void SetComplete(bool State) { complete = State; }
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};
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cPmtPidEntry::cPmtPidEntry(int Pid)
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{
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pid = Pid;
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complete = false;
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}
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// --- cPmtSidEntry ----------------------------------------------------------
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class cPmtSidEntry : public cListObject {
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private:
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int sid;
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int pid;
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cPmtPidEntry *pidEntry;
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int version;
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bool received;
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public:
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cPmtSidEntry(int Sid, int Pid, cPmtPidEntry *PidEntry);
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int Sid(void) { return sid; }
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int Pid(void) { return pid; }
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cPmtPidEntry *PidEntry(void) { return pidEntry; }
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int Version(void) { return version; }
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int Received(void) { return received; }
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void SetVersion(int Version) { version = Version; }
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void SetReceived(bool State) { received = State; }
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};
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cPmtSidEntry::cPmtSidEntry(int Sid, int Pid, cPmtPidEntry *PidEntry)
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{
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sid = Sid;
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pid = Pid;
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pidEntry = PidEntry;
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version = -1;
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received = false;
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}
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// --- cPatFilter ------------------------------------------------------------
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//#define DEBUG_PAT_PMT
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#ifdef DEBUG_PAT_PMT
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#define DBGLOG(a...) { cString s = cString::sprintf(a); fprintf(stderr, "%s\n", *s); dsyslog("%s", *s); }
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#else
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#define DBGLOG(a...) void()
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#endif
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cPatFilter::cPatFilter(void)
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{
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Trigger(0);
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Set(0x00, 0x00); // PAT
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}
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void cPatFilter::SetStatus(bool On)
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{
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cMutexLock MutexLock(&mutex);
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DBGLOG("PAT filter set status %d", On);
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cFilter::SetStatus(On);
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Trigger();
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}
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void cPatFilter::Trigger(int Sid)
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{
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cMutexLock MutexLock(&mutex);
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patVersion = -1;
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sectionSyncer.Reset();
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if (Sid != 0 && activePmt)
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Del(activePmt->Pid(), SI::TableIdPMT);
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activePmt = NULL;
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if (Sid >= 0) {
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sid = Sid;
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DBGLOG("PAT filter trigger SID %d", Sid);
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}
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}
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bool cPatFilter::PmtPidComplete(int PmtPid)
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{
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for (cPmtSidEntry *se = pmtSidList.First(); se; se = pmtSidList.Next(se)) {
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if (se->Pid() == PmtPid && !se->Received())
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return false;
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}
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return true;
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}
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void cPatFilter::PmtPidReset(int PmtPid)
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{
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for (cPmtSidEntry *se = pmtSidList.First(); se; se = pmtSidList.Next(se)) {
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if (se->Pid() == PmtPid)
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se->SetReceived(false);
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}
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}
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bool cPatFilter::PmtVersionChanged(int PmtPid, int Sid, int Version, bool SetNewVersion)
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{
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int i = 0;
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for (cPmtSidEntry *se = pmtSidList.First(); se; se = pmtSidList.Next(se), i++) {
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if (se->Sid() == Sid && se->Pid() == PmtPid) {
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if (!se->Received()) {
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se->SetReceived(true);
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se->PidEntry()->SetComplete(PmtPidComplete(PmtPid));
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}
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if (se->Version() != Version) {
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if (SetNewVersion)
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se->SetVersion(Version);
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else
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DBGLOG("PMT %d %2d %5d/%d %2d -> %2d", Transponder(), i, PmtPid, Sid, se->Version(), Version);
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return true;
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}
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break;
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}
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}
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return false;
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}
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void cPatFilter::SwitchToNextPmtPid(void)
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{
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if (activePmt) {
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Del(activePmt->Pid(), SI::TableIdPMT);
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if (!(activePmt = pmtPidList.Next(activePmt)))
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activePmt = pmtPidList.First();
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PmtPidReset(activePmt->Pid());
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activePmt->SetComplete(false);
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Add(activePmt->Pid(), SI::TableIdPMT);
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}
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}
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void cPatFilter::Process(u_short Pid, u_char Tid, const u_char *Data, int Length)
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{
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cMutexLock MutexLock(&mutex);
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if (Pid == 0x00) {
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if (Tid == SI::TableIdPAT) {
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SI::PAT pat(Data, false);
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if (!pat.CheckCRCAndParse())
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return;
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if (sectionSyncer.Check(pat.getVersionNumber(), pat.getSectionNumber())) {
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DBGLOG("PAT %d %d -> %d %d/%d", Transponder(), patVersion, pat.getVersionNumber(), pat.getSectionNumber(), pat.getLastSectionNumber());
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if (pat.getVersionNumber() != patVersion) {
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if (pat.getLastSectionNumber() > 0)
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DBGLOG(" PAT %d: %d sections", Transponder(), pat.getLastSectionNumber() + 1);
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if (activePmt) {
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Del(activePmt->Pid(), SI::TableIdPMT);
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activePmt = NULL;
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}
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pmtSidList.Clear();
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pmtPidList.Clear();
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patVersion = pat.getVersionNumber();
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}
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SI::PAT::Association assoc;
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for (SI::Loop::Iterator it; pat.associationLoop.getNext(assoc, it); ) {
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if (!assoc.isNITPid()) {
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int PmtPid = assoc.getPid();
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cPmtPidEntry *pPid = NULL;
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int PidIndex = 0;
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for (pPid = pmtPidList.First(); pPid && pPid->Pid() != PmtPid; pPid = pmtPidList.Next(pPid))
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PidIndex++;
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if (!pPid) { // new PMT Pid
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pPid = new cPmtPidEntry(PmtPid);
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pmtPidList.Add(pPid);
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}
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pmtSidList.Add(new cPmtSidEntry(assoc.getServiceId(), PmtPid, pPid));
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DBGLOG(" PMT pid %2d/%2d %5d SID %5d", PidIndex, pmtSidList.Count() - 1, PmtPid, assoc.getServiceId());
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if (sid == assoc.getServiceId()) {
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activePmt = pPid;
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DBGLOG("sid = %d pidIndex = %d", sid, PidIndex);
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}
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}
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}
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if (sectionSyncer.Processed(pat.getSectionNumber(), pat.getLastSectionNumber())) { // all PAT sections done
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if (pmtPidList.Count() != pmtSidList.Count())
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DBGLOG(" PAT %d: shared PMT PIDs", Transponder());
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if (pmtSidList.Count() && !activePmt)
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activePmt = pmtPidList.First();
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if (activePmt)
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Add(activePmt->Pid(), SI::TableIdPMT);
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timer.Set(PMT_SCAN_TIMEOUT);
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}
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}
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}
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}
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else if (Tid == SI::TableIdPMT && Source() && Transponder()) {
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timer.Set(PMT_SCAN_TIMEOUT);
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SI::PMT pmt(Data, false);
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if (!pmt.CheckCRCAndParse())
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return;
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if (!PmtVersionChanged(Pid, pmt.getTableIdExtension(), pmt.getVersionNumber(), false)) {
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if (activePmt && activePmt->Complete())
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SwitchToNextPmtPid();
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return;
|
|
}
|
|
cStateKey StateKey;
|
|
cChannels *Channels = cChannels::GetChannelsWrite(StateKey, 10);
|
|
if (!Channels)
|
|
return;
|
|
PmtVersionChanged(Pid, pmt.getTableIdExtension(), pmt.getVersionNumber(), true);
|
|
bool ChannelsModified = false;
|
|
if (activePmt && activePmt->Complete())
|
|
SwitchToNextPmtPid();
|
|
cChannel *Channel = Channels->GetByServiceID(Source(), Transponder(), pmt.getServiceId());
|
|
if (Channel) {
|
|
SI::CaDescriptor *d;
|
|
cCaDescriptors *CaDescriptors = new cCaDescriptors(Channel->Source(), Channel->Transponder(), Channel->Sid(), Pid);
|
|
// Scan the common loop:
|
|
for (SI::Loop::Iterator it; (d = (SI::CaDescriptor*)pmt.commonDescriptors.getNext(it, SI::CaDescriptorTag)); ) {
|
|
CaDescriptors->AddCaDescriptor(d, 0);
|
|
delete d;
|
|
}
|
|
// Scan the stream-specific loop:
|
|
SI::PMT::Stream stream;
|
|
int Vpid = 0;
|
|
int Ppid = 0;
|
|
int Vtype = 0;
|
|
int Apids[MAXAPIDS + 1] = { 0 }; // these lists are zero-terminated
|
|
int Atypes[MAXAPIDS + 1] = { 0 };
|
|
int Dpids[MAXDPIDS + 1] = { 0 };
|
|
int Dtypes[MAXDPIDS + 1] = { 0 };
|
|
int Spids[MAXSPIDS + 1] = { 0 };
|
|
uchar SubtitlingTypes[MAXSPIDS + 1] = { 0 };
|
|
uint16_t CompositionPageIds[MAXSPIDS + 1] = { 0 };
|
|
uint16_t AncillaryPageIds[MAXSPIDS + 1] = { 0 };
|
|
char ALangs[MAXAPIDS][MAXLANGCODE2] = { "" };
|
|
char DLangs[MAXDPIDS][MAXLANGCODE2] = { "" };
|
|
char SLangs[MAXSPIDS][MAXLANGCODE2] = { "" };
|
|
int Tpid = 0;
|
|
int NumApids = 0;
|
|
int NumDpids = 0;
|
|
int NumSpids = 0;
|
|
for (SI::Loop::Iterator it; pmt.streamLoop.getNext(stream, it); ) {
|
|
bool ProcessCaDescriptors = false;
|
|
int esPid = stream.getPid();
|
|
switch (stream.getStreamType()) {
|
|
case 1: // STREAMTYPE_11172_VIDEO
|
|
case 2: // STREAMTYPE_13818_VIDEO
|
|
case 0x1B: // H.264
|
|
case 0x24: // H.265
|
|
Vpid = esPid;
|
|
Ppid = pmt.getPCRPid();
|
|
Vtype = stream.getStreamType();
|
|
ProcessCaDescriptors = true;
|
|
break;
|
|
case 3: // STREAMTYPE_11172_AUDIO
|
|
case 4: // STREAMTYPE_13818_AUDIO
|
|
case 0x0F: // ISO/IEC 13818-7 Audio with ADTS transport syntax
|
|
case 0x11: // ISO/IEC 14496-3 Audio with LATM transport syntax
|
|
{
|
|
if (NumApids < MAXAPIDS) {
|
|
Apids[NumApids] = esPid;
|
|
Atypes[NumApids] = stream.getStreamType();
|
|
SI::Descriptor *d;
|
|
for (SI::Loop::Iterator it; (d = stream.streamDescriptors.getNext(it)); ) {
|
|
switch (d->getDescriptorTag()) {
|
|
case SI::ISO639LanguageDescriptorTag: {
|
|
SI::ISO639LanguageDescriptor *ld = (SI::ISO639LanguageDescriptor *)d;
|
|
SI::ISO639LanguageDescriptor::Language l;
|
|
char *s = ALangs[NumApids];
|
|
int n = 0;
|
|
for (SI::Loop::Iterator it; ld->languageLoop.getNext(l, it); ) {
|
|
if (*ld->languageCode != '-') { // some use "---" to indicate "none"
|
|
if (n > 0)
|
|
*s++ = '+';
|
|
strn0cpy(s, I18nNormalizeLanguageCode(l.languageCode), MAXLANGCODE1);
|
|
s += strlen(s);
|
|
if (n++ > 1)
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
default: ;
|
|
}
|
|
delete d;
|
|
}
|
|
NumApids++;
|
|
}
|
|
ProcessCaDescriptors = true;
|
|
}
|
|
break;
|
|
case 5: // STREAMTYPE_13818_PRIVATE
|
|
case 6: // STREAMTYPE_13818_PES_PRIVATE
|
|
//XXX case 8: // STREAMTYPE_13818_DSMCC
|
|
{
|
|
int dpid = 0;
|
|
int dtype = 0;
|
|
char lang[MAXLANGCODE1] = { 0 };
|
|
SI::Descriptor *d;
|
|
for (SI::Loop::Iterator it; (d = stream.streamDescriptors.getNext(it)); ) {
|
|
switch (d->getDescriptorTag()) {
|
|
case SI::AC3DescriptorTag:
|
|
case SI::EnhancedAC3DescriptorTag:
|
|
dpid = esPid;
|
|
dtype = d->getDescriptorTag();
|
|
ProcessCaDescriptors = true;
|
|
break;
|
|
case SI::SubtitlingDescriptorTag:
|
|
if (NumSpids < MAXSPIDS) {
|
|
Spids[NumSpids] = esPid;
|
|
SI::SubtitlingDescriptor *sd = (SI::SubtitlingDescriptor *)d;
|
|
SI::SubtitlingDescriptor::Subtitling sub;
|
|
char *s = SLangs[NumSpids];
|
|
int n = 0;
|
|
for (SI::Loop::Iterator it; sd->subtitlingLoop.getNext(sub, it); ) {
|
|
if (sub.languageCode[0]) {
|
|
SubtitlingTypes[NumSpids] = sub.getSubtitlingType();
|
|
CompositionPageIds[NumSpids] = sub.getCompositionPageId();
|
|
AncillaryPageIds[NumSpids] = sub.getAncillaryPageId();
|
|
if (n > 0)
|
|
*s++ = '+';
|
|
strn0cpy(s, I18nNormalizeLanguageCode(sub.languageCode), MAXLANGCODE1);
|
|
s += strlen(s);
|
|
if (n++ > 1)
|
|
break;
|
|
}
|
|
}
|
|
NumSpids++;
|
|
}
|
|
break;
|
|
case SI::TeletextDescriptorTag:
|
|
Tpid = esPid;
|
|
break;
|
|
case SI::ISO639LanguageDescriptorTag: {
|
|
SI::ISO639LanguageDescriptor *ld = (SI::ISO639LanguageDescriptor *)d;
|
|
strn0cpy(lang, I18nNormalizeLanguageCode(ld->languageCode), MAXLANGCODE1);
|
|
}
|
|
break;
|
|
default: ;
|
|
}
|
|
delete d;
|
|
}
|
|
if (dpid) {
|
|
if (NumDpids < MAXDPIDS) {
|
|
Dpids[NumDpids] = dpid;
|
|
Dtypes[NumDpids] = dtype;
|
|
strn0cpy(DLangs[NumDpids], lang, MAXLANGCODE1);
|
|
NumDpids++;
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
case 0x80: // STREAMTYPE_USER_PRIVATE
|
|
if (Setup.StandardCompliance == STANDARD_ANSISCTE) { // DigiCipher II VIDEO (ANSI/SCTE 57)
|
|
Vpid = esPid;
|
|
Ppid = pmt.getPCRPid();
|
|
Vtype = 0x02; // compression based upon MPEG-2
|
|
ProcessCaDescriptors = true;
|
|
break;
|
|
}
|
|
// fall through
|
|
case 0x81: // STREAMTYPE_USER_PRIVATE
|
|
case 0x87: // eac3
|
|
if (Setup.StandardCompliance == STANDARD_ANSISCTE) { // ATSC A/53 AUDIO (ANSI/SCTE 57)
|
|
char lang[MAXLANGCODE1] = { 0 };
|
|
SI::Descriptor *d;
|
|
for (SI::Loop::Iterator it; (d = stream.streamDescriptors.getNext(it)); ) {
|
|
switch (d->getDescriptorTag()) {
|
|
case SI::ISO639LanguageDescriptorTag: {
|
|
SI::ISO639LanguageDescriptor *ld = (SI::ISO639LanguageDescriptor *)d;
|
|
strn0cpy(lang, I18nNormalizeLanguageCode(ld->languageCode), MAXLANGCODE1);
|
|
}
|
|
break;
|
|
default: ;
|
|
}
|
|
delete d;
|
|
}
|
|
if (NumDpids < MAXDPIDS) {
|
|
Dpids[NumDpids] = esPid;
|
|
Dtypes[NumDpids] = SI::AC3DescriptorTag;
|
|
strn0cpy(DLangs[NumDpids], lang, MAXLANGCODE1);
|
|
NumDpids++;
|
|
}
|
|
ProcessCaDescriptors = true;
|
|
break;
|
|
}
|
|
// fall through
|
|
case 0x82: // STREAMTYPE_USER_PRIVATE
|
|
if (Setup.StandardCompliance == STANDARD_ANSISCTE) { // STANDARD SUBTITLE (ANSI/SCTE 27)
|
|
//TODO
|
|
break;
|
|
}
|
|
// fall through
|
|
case 0x83 ... 0x86: // STREAMTYPE_USER_PRIVATE
|
|
case 0x88 ... 0xFF: // STREAMTYPE_USER_PRIVATE
|
|
{
|
|
char lang[MAXLANGCODE1] = { 0 };
|
|
bool IsAc3 = false;
|
|
SI::Descriptor *d;
|
|
for (SI::Loop::Iterator it; (d = stream.streamDescriptors.getNext(it)); ) {
|
|
switch (d->getDescriptorTag()) {
|
|
case SI::RegistrationDescriptorTag: {
|
|
SI::RegistrationDescriptor *rd = (SI::RegistrationDescriptor *)d;
|
|
// http://www.smpte-ra.org/mpegreg/mpegreg.html
|
|
switch (rd->getFormatIdentifier()) {
|
|
case 0x41432D33: // 'AC-3'
|
|
IsAc3 = true;
|
|
break;
|
|
default:
|
|
//printf("Format identifier: 0x%08X (pid: %d)\n", rd->getFormatIdentifier(), esPid);
|
|
break;
|
|
}
|
|
}
|
|
break;
|
|
case SI::ISO639LanguageDescriptorTag: {
|
|
SI::ISO639LanguageDescriptor *ld = (SI::ISO639LanguageDescriptor *)d;
|
|
strn0cpy(lang, I18nNormalizeLanguageCode(ld->languageCode), MAXLANGCODE1);
|
|
}
|
|
break;
|
|
default: ;
|
|
}
|
|
delete d;
|
|
}
|
|
if (IsAc3) {
|
|
if (NumDpids < MAXDPIDS) {
|
|
Dpids[NumDpids] = esPid;
|
|
Dtypes[NumDpids] = SI::AC3DescriptorTag;
|
|
strn0cpy(DLangs[NumDpids], lang, MAXLANGCODE1);
|
|
NumDpids++;
|
|
}
|
|
ProcessCaDescriptors = true;
|
|
}
|
|
}
|
|
break;
|
|
default: ;//printf("PID: %5d %5d %2d %3d %3d\n", pmt.getServiceId(), stream.getPid(), stream.getStreamType(), pmt.getVersionNumber(), Channel->Number());
|
|
}
|
|
if (ProcessCaDescriptors) {
|
|
for (SI::Loop::Iterator it; (d = (SI::CaDescriptor*)stream.streamDescriptors.getNext(it, SI::CaDescriptorTag)); ) {
|
|
CaDescriptors->AddCaDescriptor(d, esPid);
|
|
delete d;
|
|
}
|
|
}
|
|
}
|
|
if (Setup.UpdateChannels >= 2) {
|
|
ChannelsModified |= Channel->SetPids(Vpid, Ppid, Vtype, Apids, Atypes, ALangs, Dpids, Dtypes, DLangs, Spids, SLangs, Tpid);
|
|
ChannelsModified |= Channel->SetCaIds(CaDescriptors->CaIds());
|
|
ChannelsModified |= Channel->SetSubtitlingDescriptors(SubtitlingTypes, CompositionPageIds, AncillaryPageIds);
|
|
}
|
|
ChannelsModified |= Channel->SetCaDescriptors(CaDescriptorHandler.AddCaDescriptors(CaDescriptors));
|
|
}
|
|
StateKey.Remove(ChannelsModified);
|
|
}
|
|
if (timer.TimedOut()) {
|
|
if (activePmt)
|
|
DBGLOG("PMT timeout Pid %d", activePmt->Pid());
|
|
SwitchToNextPmtPid();
|
|
timer.Set(PMT_SCAN_TIMEOUT);
|
|
}
|
|
}
|