bool CBat::Parse()
{
printf("[scan] trying to parse BAT\n");
if(!Read())
return false;
sections.sort(compare_section_num);
BouquetAssociationSectionConstIterator sit;
for (sit = sections.begin(); sit != sections.end(); ++sit) {
BouquetAssociationSection * bat = *sit;
uint16_t bouquet_id = bat->getTableIdExtension();
if (CServiceScan::getInstance()->Aborted())
return false;
const DescriptorList * dlist = bat->getDescriptors();
DescriptorConstIterator dit;
#ifdef DEBUG_BAT
printf("BAT: section %d, %d descriptors\n", bat->getSectionNumber(), (int)dlist->size());
#endif
unsigned int pdsd = 0;
for (dit = dlist->begin(); dit != dlist->end(); ++dit) {
Descriptor * d = *dit;
//printf("BAT: parse descriptor %02x len %d\n", d->getTag(), d->getLength());
switch(d->getTag()) {
case BOUQUET_NAME_DESCRIPTOR:
{
BouquetNameDescriptor * nd = (BouquetNameDescriptor *) d;
/*std::string*/ bouquetName = stringDVBUTF8(nd->getBouquetName());
printf("BAT: bouquet name [%s]\n", bouquetName.c_str());
}
break;
case LINKAGE_DESCRIPTOR:
{
#ifdef DEBUG_BAT
LinkageDescriptor * ld = (LinkageDescriptor*) d;
printf("BAT: linkage, tsid %04x onid %04x sid %04x type %02x\n", ld->getTransportStreamId(),
ld->getOriginalNetworkId(), ld->getServiceId(), ld->getLinkageType());
#endif
}
break;
case PRIVATE_DATA_SPECIFIER_DESCRIPTOR:
{
PrivateDataSpecifierDescriptor * pd = (PrivateDataSpecifierDescriptor *)d;
pdsd = pd->getPrivateDataSpecifier();
#ifdef DEBUG_BAT
printf("BAT: private data specifier %08x\n", pdsd);
#endif
}
break;
case COUNTRY_AVAILABILITY_DESCRIPTOR:
default:
{
#ifdef DEBUG_BAT_UNUSED
printf("BAT: descriptor %02x: ", d->getTag());
uint8_t len = 2+d->getLength();
uint8_t *buf = new uint8_t[len];
if(buf){
d->writeToBuffer(buf);
for(uint8_t i = 0; i < len; i++)
printf("%02x ", buf[i]);
printf("\n");
delete []buf;
}
#endif
}
break;
}
}
const BouquetAssociationList &blist = *bat->getBouquets();
BouquetAssociationConstIterator it;
for(it = blist.begin(); it != blist.end(); ++it) {
BouquetAssociation * b = *it;
dlist = b->getDescriptors();
#if 1
printf("BAT: bouquet_id %04x tsid %04x onid %04x %d descriptors\n", bouquet_id, b->getTransportStreamId(),
b->getOriginalNetworkId(), (int)dlist->size());
#endif
for (dit = dlist->begin(); dit != dlist->end(); ++dit) {
Descriptor * d = *dit;
switch(d->getTag()) {
case SERVICE_LIST_DESCRIPTOR:
ParseServiceList((ServiceListDescriptor *) d, b);
break;
#if 1
case LOGICAL_CHANNEL_DESCRIPTOR:
ParseLogicalChannels((LogicalChannelDescriptor *) d, b);
break;
#endif
case PRIVATE_DATA_SPECIFIER_DESCRIPTOR:
{
PrivateDataSpecifierDescriptor * pd = (PrivateDataSpecifierDescriptor *)d;
pdsd = pd->getPrivateDataSpecifier();
#ifdef DEBUG_BAT
printf("BAT: private data specifier %08x\n", pdsd);
#endif
}
break;
default:
{
#ifdef DEBUG_BAT_UNUSED
printf("BAT: descriptor %02x: ", d->getTag());
uint8_t len = 2+d->getLength();
uint8_t *buf = new uint8_t[len];
if(buf){
d->writeToBuffer(buf);
for(uint8_t i = 0; i < len; i++)
printf("%02x ", buf[i]);
printf("\n");
delete []buf;
}
#endif
}
break;
}
switch(pdsd) {
case 0x00000010:
if(d->getTag() == 0x82) {
uint8_t *buf = new uint8_t[2 + d->getLength()];
if(buf){
d->writeToBuffer(buf);
LogicalChannelDescriptor ld(buf);
ParseLogicalChannels(&ld, b);
delete []buf;
}
}
break;
default:
break;
}
}
}
}
return true;
}
bool CPmt::ParseEsInfo(ElementaryStreamInfo *esinfo, CZapitChannel * const channel)
{
std::string description = "";
unsigned char componentTag = 0xFF;
CZapitAudioChannel::ZapitAudioChannelType audio_type = CZapitAudioChannel::UNKNOWN;
uint8_t stream_type = esinfo->getType();
bool audio = false;
const DescriptorList * dlist = esinfo->getDescriptors();
DescriptorConstIterator dit;
for (dit = dlist->begin(); dit != dlist->end(); ++dit) {
Descriptor * d = *dit;
switch (d->getTag()) {
case REGISTRATION_DESCRIPTOR:
{
RegistrationDescriptor *sd = (RegistrationDescriptor*) d;
switch (sd->getFormatIdentifier()) {
case 0x44545331:
case 0x44545332:
case 0x44545333:
audio_type = CZapitAudioChannel::DTS;
break;
case 0x41432d33:
audio_type = CZapitAudioChannel::AC3;
break;
default:
#ifdef DEBUG_PMT
printf("PMT: REGISTRATION_DESCRIPTOR: %x\n", sd->getFormatIdentifier());
#endif
break;
}
}
break;
case ISO_639_LANGUAGE_DESCRIPTOR:
{
Iso639LanguageDescriptor * sd = (Iso639LanguageDescriptor*) d;
const Iso639LanguageList *languages = sd->getIso639Languages();
Iso639LanguageConstIterator it;
for (it = languages->begin(); it != languages->end(); ++it) {
description = (*it)->getIso639LanguageCode();
break;
}
}
break;
case STREAM_IDENTIFIER_DESCRIPTOR:
{
StreamIdentifierDescriptor *sd = (StreamIdentifierDescriptor*) d;
componentTag = sd->getComponentTag();
}
break;
case TELETEXT_DESCRIPTOR:
{
TeletextDescriptor *td = (TeletextDescriptor*)d;
const VbiTeletextList *vbilist = td->getVbiTeletexts();
VbiTeletextConstIterator it;
DBG("teletext pid %04x\n", esinfo->getPid());
for (it = vbilist->begin(); it != vbilist->end(); ++it) {
VbiTeletext * vbi = *it;
std::string lang = vbi->getIso639LanguageCode();
uint8_t page = vbi->getTeletextPageNumber();
uint8_t magazine = vbi->getTeletextMagazineNumber();
DBG("teletext type %d mag %d page %d lang [%s]\n",
vbi->getTeletextType(), magazine, page, lang.c_str());
if (vbi->getTeletextType() == 0x01)
channel->setTeletextLang(lang);
else if (vbi->getTeletextType() == 0x02)
channel->addTTXSubtitle(esinfo->getPid(), lang, magazine, page);
else if (vbi->getTeletextType() == 0x05)
channel->addTTXSubtitle(esinfo->getPid(), lang, magazine, page, true);
}
channel->setTeletextPid(esinfo->getPid());
}
break;
case SUBTITLING_DESCRIPTOR:
if(stream_type == 0x06) {
SubtitlingDescriptor *sd = (SubtitlingDescriptor*) d;
const SubtitlingList *sublist = sd->getSubtitlings();
SubtitlingConstIterator it;
for (it = sublist->begin(); it != sublist->end(); ++it) {
Subtitling * sub = *it;
uint16_t composition_page_id = sub->getCompositionPageId();
uint16_t ancillary_page_id = sub->getAncillaryPageId();
std::string lang = sub->getIso639LanguageCode();
channel->addDVBSubtitle(esinfo->getPid(), lang, sub->getSubtitlingType(),
composition_page_id, ancillary_page_id);
}
}
break;
case AC3_DESCRIPTOR:
audio_type = CZapitAudioChannel::AC3;
break;
case ENHANCED_AC3_DESCRIPTOR:
audio_type = CZapitAudioChannel::EAC3;
break;
case DTS_DESCRIPTOR:
audio_type = CZapitAudioChannel::DTS;
break;
case AAC_DESCRIPTOR:
audio_type = CZapitAudioChannel::AAC;
break;
case 0xC5: /* User Private descriptor - Canal+ Radio */
if(d->getLength() >= 25) {
uint8_t *buf = new uint8_t[2 + d->getLength()];
if(buf){
d->writeToBuffer(buf);
int tsidonid = channel->getTransportStreamId() << 16 | channel->getOriginalNetworkId();
description = convertDVBUTF8((const char*)&buf[3], 24, 2, tsidonid);
delete []buf;
}
}
break;
case AUDIO_STREAM_DESCRIPTOR:
break;
case VIDEO_STREAM_DESCRIPTOR:
break;
case CA_DESCRIPTOR:
break;
default:
{
#ifdef DEBUG_PMT_UNUSED
printf("PMT: descriptor %02x: ", d->getTag());
uint8_t len = 2+d->getLength();
uint8_t buf[len];
d->writeToBuffer(buf);
for(uint8_t i = 0; i < len; i++)
printf("%02x ", buf[i]);
printf("\n");
#endif
}
break;
}
}
switch (stream_type) {
case 0x01:
case 0x02:
case 0x1b: // AVC Video Stream (MPEG4 H264)
channel->setVideoPid(esinfo->getPid());
channel->type = (stream_type == 0x1b); //FIXME
DBG("vpid %04x stream %d type %d\n", esinfo->getPid(), stream_type, channel->type);
break;
case 0x03:
case 0x04:
audio_type = CZapitAudioChannel::MPEG;
audio = true;
break;
case 0x06:
if(audio_type != CZapitAudioChannel::UNKNOWN)
audio = true;
break;
case 0x0F: // AAC ADTS
case 0x11: // AAC LATM
audio_type = CZapitAudioChannel::AAC;
audio = true;
break;
case 0x81:
audio_type = CZapitAudioChannel::AC3;
audio = true;
break;
default:
#ifdef DEBUG_PMT_UNUSED
printf("PMT: pid %04x stream_type: %02x\n", esinfo->getPid(), stream_type);
#endif
break;
}
if(audio) {
if(description.empty()) {
char str[DESC_MAX_LEN];
// snprintf(str, DESC_MAX_LEN, "Unknown 0x%04x", esinfo->getPid());
snprintf(str, DESC_MAX_LEN, "Unknown");
description = str;
}
DBG("apid %04x stream %02x type %d [%s]\n", esinfo->getPid(), stream_type,
(int) audio_type, description.c_str());
if(CServiceScan::getInstance()->Scanning()) {
if(channel->getPreAudioPid() == 0)
channel->setAudioPid(esinfo->getPid());
} else
channel->addAudioChannel(esinfo->getPid(), audio_type, description, componentTag);
}
return true;
}
