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Added code for parsing LCN and AVC descriptors to libsi

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This commit is contained in:
Klaus Schmidinger
2013-10-30 10:18:26 +01:00
parent 83a8d5a561
commit 512cd24e53
7 changed files with 255 additions and 5 deletions
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1
CONTRIBUTORS
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@@ -1176,6 +1176,7 @@ Rolf Ahrenberg <Rolf.Ahrenberg@sci.fi>
for fixing some compiler warnings with gcc-4.6.3
for suggesting to prompt the user for confirmation before overwriting an already
existing edited version of a recording
for adding code for parsing LCN and AVC descriptors to libsi
Ralf Klueber <ralf.klueber@vodafone.com>
for reporting a bug in cutting a recording if there is only a single editing mark

1
HISTORY
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@@ -8047,3 +8047,4 @@ Video Disk Recorder Revision History
- The LIRC remote control now connects to the socket even if it doesn't yet exist when
VDR is started (thanks to Lars Hanisch).
- Changed the absolute latitude limit for visible satellites to 81.2 degrees.
- Added code for parsing LCN and AVC descriptors to libsi (thanks to Rolf Ahrenberg).

99
libsi/descriptor.c
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@@ -6,7 +6,7 @@
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* $Id: descriptor.c 2.4 2012/01/11 11:35:17 kls Exp $
* $Id: descriptor.c 3.1 2013/10/30 10:16:18 kls Exp $
* *
***************************************************************************/
@@ -922,6 +922,48 @@ int T2DeliverySystemDescriptor::getTfsFlag() const {
return extended_data_flag ? s->tfs_flag : -1;
}
void LogicalChannelDescriptor::Parse() {
//this descriptor is only a header and a loop
logicalChannelLoop.setData(data+sizeof(descr_logical_channel), getLength()-sizeof(descr_logical_channel));
}
int LogicalChannelDescriptor::LogicalChannel::getServiceId() const {
return HILO(s->service_id);
}
int LogicalChannelDescriptor::LogicalChannel::getVisibleServiceFlag() const {
return s->visible_service_flag;
}
int LogicalChannelDescriptor::LogicalChannel::getLogicalChannelNumber() const {
return HILO(s->logical_channel_number);
}
void LogicalChannelDescriptor::LogicalChannel::Parse() {
s=data.getData<const item_logical_channel>();
}
void HdSimulcastLogicalChannelDescriptor::Parse() {
//this descriptor is only a header and a loop
hdSimulcastLogicalChannelLoop.setData(data+sizeof(descr_hd_simulcast_logical_channel), getLength()-sizeof(descr_hd_simulcast_logical_channel));
}
int HdSimulcastLogicalChannelDescriptor::HdSimulcastLogicalChannel::getServiceId() const {
return HILO(s->service_id);
}
int HdSimulcastLogicalChannelDescriptor::HdSimulcastLogicalChannel::getVisibleServiceFlag() const {
return s->visible_service_flag;
}
int HdSimulcastLogicalChannelDescriptor::HdSimulcastLogicalChannel::getLogicalChannelNumber() const {
return HILO(s->logical_channel_number);
}
void HdSimulcastLogicalChannelDescriptor::HdSimulcastLogicalChannel::Parse() {
s=data.getData<const item_hd_simulcast_logical_channel>();
}
int PremiereContentTransmissionDescriptor::getOriginalNetworkId() const {
return HILO(s->original_network_id);
}
@@ -1145,4 +1187,59 @@ void RegistrationDescriptor::Parse() {
privateData.assign(data.getData(offset), getLength()-offset);
}
int AVCDescriptor::getProfileIdc() const {
return s->profile_idc;
}
int AVCDescriptor::getConstraintSet0Flag() const {
return s->constraint_set0_flag;
}
int AVCDescriptor::getConstraintSet1Flag() const {
return s->constraint_set1_flag;
}
int AVCDescriptor::getConstraintSet2Flag() const {
return s->constraint_set2_flag;
}
int AVCDescriptor::getConstraintSet3Flag() const {
return s->constraint_set3_flag;
}
int AVCDescriptor::getConstraintSet4Flag() const {
return s->constraint_set4_flag;
}
int AVCDescriptor::getConstraintSet5Flag() const {
return s->constraint_set5_flag;
}
int AVCDescriptor::getAVCCompatibleFlags() const {
return s->avc_compatible_flags;
}
int AVCDescriptor::getLevelIdc() const {
return s->level_idc;
}
int AVCDescriptor::getAVCStillPresent() const {
return s->avc_still_present;
}
int AVCDescriptor::getAVC24HourPictureFlag() const {
return s->avc_24_hour_picture_flag;
}
int AVCDescriptor::getFramePackingSEINotPresentFlag() const {
return s->frame_packing_sei_not_present_flag;
}
void AVCDescriptor::Parse() {
int offset=0;
data.setPointerAndOffset<const descr_avc>(s, offset);
if (checkSize(getLength()-offset))
privateData.assign(data.getData(offset), getLength()-offset);
}
} //end of namespace

59
libsi/descriptor.h
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@@ -6,7 +6,7 @@
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* $Id: descriptor.h 2.4 2012/01/11 11:35:17 kls Exp $
* $Id: descriptor.h 3.1 2013/10/30 10:16:18 kls Exp $
* *
***************************************************************************/
@@ -557,6 +557,42 @@ private:
int extended_data_flag;
};
class LogicalChannelDescriptor : public Descriptor {
public:
class LogicalChannel : public LoopElement {
public:
int getServiceId() const;
int getVisibleServiceFlag() const;
int getLogicalChannelNumber() const;
virtual int getLength() { return sizeof(item_logical_channel); }
protected:
virtual void Parse();
private:
const item_logical_channel *s;
};
StructureLoop<LogicalChannel> logicalChannelLoop;
protected:
virtual void Parse();
};
class HdSimulcastLogicalChannelDescriptor : public Descriptor {
public:
class HdSimulcastLogicalChannel : public LoopElement {
public:
int getServiceId() const;
int getVisibleServiceFlag() const;
int getLogicalChannelNumber() const;
virtual int getLength() { return sizeof(item_hd_simulcast_logical_channel); }
protected:
virtual void Parse();
private:
const item_hd_simulcast_logical_channel *s;
};
StructureLoop<HdSimulcastLogicalChannel> hdSimulcastLogicalChannelLoop;
protected:
virtual void Parse();
};
// Private DVB Descriptor Premiere.de
// 0xF2 Content Transmission Descriptor
// http://dvbsnoop.sourceforge.net/examples/example-private-section.html
@@ -735,6 +771,27 @@ private:
const descr_registration *s;
};
class AVCDescriptor : public Descriptor {
public:
int getProfileIdc() const;
int getConstraintSet0Flag() const;
int getConstraintSet1Flag() const;
int getConstraintSet2Flag() const;
int getConstraintSet3Flag() const;
int getConstraintSet4Flag() const;
int getConstraintSet5Flag() const;
int getAVCCompatibleFlags() const;
int getLevelIdc() const;
int getAVCStillPresent() const;
int getAVC24HourPictureFlag() const;
int getFramePackingSEINotPresentFlag() const;
CharArray privateData;
protected:
virtual void Parse();
private:
const descr_avc *s;
};
} //end of namespace
#endif //LIBSI_TABLE_H

71
libsi/headers.h
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@@ -10,7 +10,7 @@
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* $Id: headers.h 2.5 2012/06/09 14:37:24 kls Exp $
* $Id: headers.h 3.1 2013/10/30 10:16:18 kls Exp $
* *
***************************************************************************/
@@ -1870,6 +1870,54 @@ struct descr_t2_delivery_system {
fields looping to the end */
};
/* 0x83 logical_channel_descriptor */
#define DESCR_LOGICAL_CHANNEL_LEN 2
struct descr_logical_channel {
u_char descriptor_tag :8;
u_char descriptor_length :8;
};
#define ITEM_LOGICAL_CHANNEL_LEN 4
struct item_logical_channel {
u_char service_id_hi :8;
u_char service_id_lo :8;
#if BYTE_ORDER == BIG_ENDIAN
u_char visible_service_flag :1;
u_char reserved :5;
u_char logical_channel_number_hi :2;
#else
u_char logical_channel_number_hi :2;
u_char reserved :5;
u_char visible_service_flag :1;
#endif
u_char logical_channel_number_lo :8;
};
/* 0x88 hd_simulcast_logical_channel_descriptor */
#define DESCR_HD_SIMULCAST_LOGICAL_CHANNEL_LEN 2
struct descr_hd_simulcast_logical_channel {
u_char descriptor_tag :8;
u_char descriptor_length :8;
};
#define ITEM_HD_SIMULCAST_LOGICAL_CHANNEL_LEN 4
struct item_hd_simulcast_logical_channel {
u_char service_id_hi :8;
u_char service_id_lo :8;
#if BYTE_ORDER == BIG_ENDIAN
u_char visible_service_flag :1;
u_char reserved :5;
u_char logical_channel_number_hi :2;
#else
u_char logical_channel_number_hi :2;
u_char reserved :5;
u_char visible_service_flag :1;
#endif
u_char logical_channel_number_lo :8;
};
/* MHP 0x00 application_descriptor */
#define DESCR_APPLICATION_LEN 3
@@ -2088,6 +2136,27 @@ struct descr_registration {
u_char format_identifier_lo_lo :8;
};
/* 0x28 avc_descriptor */
#define DESCR_AVC_LEN 6
struct descr_avc {
u_char descriptor_tag :8;
u_char descriptor_length :8;
u_char profile_idc :8;
u_char constraint_set0_flag :1;
u_char constraint_set1_flag :1;
u_char constraint_set2_flag :1;
u_char constraint_set3_flag :1;
u_char constraint_set4_flag :1;
u_char constraint_set5_flag :1;
u_char avc_compatible_flags :2;
u_char level_idc :8;
u_char avc_still_present :1;
u_char avc_24_hour_picture_flag :1;
u_char frame_packing_sei_not_present_flag :1;
u_char reserved :5;
};
} //end of namespace
#endif //LIBSI_HEADERS_H

11
libsi/si.c
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@@ -6,7 +6,7 @@
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* $Id: si.c 2.8 2012/09/29 14:44:20 kls Exp $
* $Id: si.c 3.1 2013/10/30 10:16:18 kls Exp $
* *
***************************************************************************/
@@ -508,6 +508,9 @@ Descriptor *Descriptor::getDescriptor(CharArray da, DescriptorTagDomain domain,
case CarouselIdentifierDescriptorTag:
d=new CarouselIdentifierDescriptor();
break;
case AVCDescriptorTag:
d=new AVCDescriptor();
break;
case NetworkNameDescriptorTag:
d=new NetworkNameDescriptor();
break;
@@ -614,6 +617,12 @@ Descriptor *Descriptor::getDescriptor(CharArray da, DescriptorTagDomain domain,
case ExtensionDescriptorTag:
d=new ExtensionDescriptor();
break;
case LogicalChannelDescriptorTag:
d=new LogicalChannelDescriptor();
break;
case HdSimulcastLogicalChannelDescriptorTag:
d=new HdSimulcastLogicalChannelDescriptor();
break;
case RegistrationDescriptorTag:
d=new RegistrationDescriptor();
break;

18
libsi/si.h
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@@ -6,7 +6,7 @@
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* $Id: si.h 2.6 2012/10/15 11:56:06 kls Exp $
* $Id: si.h 3.1 2013/10/30 10:16:18 kls Exp $
* *
***************************************************************************/
@@ -70,6 +70,10 @@ enum DescriptorTag {
// defined by ISO-13818-6 (DSM-CC)
CarouselIdentifierDescriptorTag = 0x13,
// 0x14 - 0x3F Reserved
// defined by ISO/IEC 13818-1 Amendment
AVCDescriptorTag = 0x28,
SVCExtensionDescriptorTag = 0x30,
MVCExtensionDescriptorTag = 0x31,
// defined by ETSI (EN 300 468)
NetworkNameDescriptorTag = 0x40,
ServiceListDescriptorTag = 0x41,
@@ -134,6 +138,12 @@ enum DescriptorTag {
DTSDescriptorTag = 0x7B,
AACDescriptorTag = 0x7C,
ExtensionDescriptorTag = 0x7F,
// defined by EICTA/EACEM/DIGITALEUROPE
LogicalChannelDescriptorTag = 0x83,
PreferredNameListDescriptorTag = 0x84,
PreferredNameIdentifierDescriptorTag = 0x85,
EacemStreamIdentifierDescriptorTag = 0x86,
HdSimulcastLogicalChannelDescriptorTag = 0x88,
// Extension descriptors
ImageIconDescriptorTag = 0x00,
CpcmDeliverySignallingDescriptor = 0x01,
@@ -147,6 +157,12 @@ enum DescriptorTag {
TargetRegionDescriptorTag = 0x09,
TargetRegionNameDescriptorTag = 0x0A,
ServiceRelocatedDescriptorTag = 0x0B,
// defined by ETSI (EN 300 468) v 1.12.1
XAITPidDescriptorTag = 0x0C,
C2DeliverySystemDescriptorTag = 0x0D,
// 0x0E - 0x0F Reserved
VideoDepthRangeDescriptorTag = 0x10,
T2MIDescriptorTag = 0x11,
// Defined by ETSI TS 102 812 (MHP)
// They once again start with 0x00 (see page 234, MHP specification)