Download pdf - MPEG-2 Transport Stream Service Information (SI) in DVB Systems · 2019. 7. 9. · Info Length N Loop Descriptors Elementary PID 8 bits 13 bits 3 bits 4 bits 12 bits N Loop Descriptors

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ISO/IEC 13818-1 transport packetSyntax No. of bits

t ranspor t_packet ( ) {sync_byte 8transpor t_error_ ind ica tor 1pay load_uni t_star t_ ind ica tor 1t ranspor t_pr ior i ty 1PID 13transpor t_scrambl ing_contro l 2adapta t ion_f ie ld_contro l 2cont inu i ty_counter 4i f (adapta t ion_f ie ld_cont ro l==’10’ | | adapta t ion_f ie ld_cont ro l==’11’ ) {

adapta t ion_f ie ld ( )}i f (adapta t ion_f ie ld_cont ro l==’01’ | | adapta t ion_f ie ld_cont ro l==’11’ ) {

fo r ( i=0; i<N; i++) {data_byte 8

}}

}

PROGRAM ASSOCIATION SECTION DIAGRAM8 bits

Table IDSectionSyntax

Indicator

TransportStream

ID

CurrentNext

Indicator

LastSectionNumber

SectionLength

VersionNumber

SectionNumber

NLoop

CRC32

‘0’

1 bit 12 bits 16 bits 5 bits 8 bits 8 bits32bits1 bit

1 bit

2 bits

2 bits

ProgramNumber

0

. . . . . .Program

MapPID_i

ProgramNumber

i

NetworkPID

16 bits 13 bits 16 bits 13 bits3

bits3

bits

TS PROGRAM MAP SECTION DIAGRAM8 bits


Indicator

CurrentNext

Indicator

LastSectionNumber

SectionLength

ProgramNumber

VersionNumber

SectionNumber

‘0’

1 bit 12 bits 16 bits 5 bits 8 bits 8 bits4

bits1 bit1

bit2

bits2

bits

StreamType

ESInfo

Length

NLoop

Descriptors

ElementaryPID

8 bits 13 bits3

bits4

bits 12 bits

NLoop

Descriptors

32 bits12 bits

CONDITIONAL ACCESS SECTION DIAGRAM8 bits


Indicator

CurrentNext

Indicator

LastSectionNumber

SectionLength

VersionNumber

SectionNumber

NLoop

Descriptors

CRC32

‘0’

1 bit 12 bits 18 bits 5 bits 8 bits 8 bits32bits1 bit

1 bit

2 bits

PCRPID

NLoop CRC_32

ProgramInfo

Length

TRANSPORT STREAM SYNTAX DIAGRAM

8 bits

Header Payload Payload Payload

TransportError

Indicator

PayloadUnit StartIndicator

TransportScrambling

Control

AdaptationField

Control

TransportPriority

SyncByte

AdaptationField

1 bit 1 bit 1 bit

188 bytes

13 bits 2 bits 4 bits2 bits

PID

TransportPacketStream

ContinuityCounter

AdaptationField

Length

RandomAccess

Indicator

ElementaryStream Priority

Indicator

DiscontinuityIndicator

StuffingBytes

8 bits 1 bit 1 bit 1 bit 5 bits

5 Flags

TransportPrivate Data

Length

TransportPrivateData

AdaptationField Extenstion

Length

42 bits 42 bits 8 bits 8 bits 8 bits 3 bits

3 FlagsPCR OPCR OptionalFields

SpliceCountdown

1 bit 15 bits 22 bits2 bits 4 bits 33 bits

DTS_next_auItw_valid

FlagItw

OffsetPiecewise

RateSpliceType

13 bits3

bits

PRIVATE SECTION DIAGRAM

TableId

SectionSyntax

Indicator

PrivateSectionLength

PrivateIndicator

8 bits 1 bit 1 bit 12 bits2

bits

SectionNumber

CRC32

TableId

Extension

CurrentNext

Indicator

LastSectionNumber

NPrivateData

VersionNumber

16 bits 5 bits 1 bit 8 bits 8 bits 32 bits2

bits

N Private Data Bytes

Allocation of table_id Values

Value Description

0x000x010x020x03

0x04 to 0x3F0x400x410x42

0x43 to 0x450x46

0x47 to 0x490x4A

0x4B to 0x4D0x4E0x4F

0x50 to 0x5F0x60 to 0x6F

0x700x710x720x73

0x74 to 0x7D0x7E0x7F

0x80 to 0xFE0xFF

program_association_sectionconditional_access_sectionprogram_map_sectiontransport_stream_description_sectionreservednetwork_information_section - actual_networknetwork_information_section - other_networkservice_description_section - actual_transport_streamreserved for future useservice_description_section - other_transport_streamreserved for future usebouquet_association_sectionreserved for future useevent_information_section - actual_transport_stream, present/followingevent_information_section - other_transport_stream, present/followingevent_information_section - actual_transport_stream, scheduleevent_information_section - other_transport_stream, scheduletime_date_sectionrunning_status_sectionstuffing_sectiontime_offset_sectionreserved for future usediscontinuity_information_sectionselection_information_sectionuser definedreserved

Abbreviations

AC-3 Dolby AC-3 audio coding (ITU-R Recommendation BS1196 [19])

BAT Bouquet Association TableBCD Binary Coded Decimalbslbf bit string, left bit firstCA Conditional AccessCAT Conditional Access TableCLUT Color Look-Up TableCRC Cyclic Redundancy CheckDAB Digital Audio BroadcastingDIT Discontinuity Information TableDVB Digital Video BroadcastingDVD Digital Versatile DiscEBU European Broadcasting UnionEIT Event Information TableEMM Entitlement Management MessageEPG Electronic ProgramGuideETS European Telecommunication StandardFEC Forward Error CorrectionIEC International Electrotechnical CommissionIRD Integrated Receiver DecoderISO International Organization for StandardizationLSB Least Significant BitMJD Modified Julian DateMPEG Moving Pictures Expert GroupNIT Network Information TableNVOD Near Video On DemandPAT Program Association TablePDC ProgramDelivery ControlPID Packet IDentifierPMT Program Map TablePSI Program Specific InformationPSTN Public Switched Telephone NetworkQAM Quadrature Amplitude ModulationQPSK Quaternary Phase Shift Keyingrpchof remainder polynomial coefficients, highest order firstRS Reed-SolomonRST Running Status TableSeF Scale FactorSDT Service Description TableSI Service InformationSIT Selection Information TableSMI Storage Media InteroperabilityST Stuffing TableTDT Time and Date TableTOT Time Offset TableTPS Transmission Parameter SignalingTS Transport Streamuimsbf unsigned integer most significant bit firstUTC Universal Time, Co-ordinatedVBI Vertical Blanking IntervalVPS Video Program SystemWSS Wide Screen Signaling

Stream Type AssignmentsValue Description

0x000x010x02

0x030x040x050x06

0x070x080x090x0A0x0B0x0C0x0D0x0E

0x0F - 0x7F0x80 - 0xFF

ITU-T | ISO/IEC reservedISO/IEC 11172-2 VideoITU-T Rec. H.262 | ISO/IEC 13818-2 Video or ISO/IEC11172-2 constrained parameter video streamISO/IEC 11172-3 AudioISO/IEC 13818-3 AudioITU-T Rec. H.222.0 | ISO/IEC 13818-1 private_sectionsITU-T Rec. H.222.0 | ISO/IEC 13818-1 PES packetscontaining private dataISO/IEC 13522 MHEGAnnex A - DSM CCITU-T Rec. H.222.1ISO/IEC 13818-6 type AISO/IEC 13818-6 type BISO/IEC 13818-6 type CISO/IEC 13818-6 type DISO/IEC 13818-1 auxiliaryITU-T Rec. H.222.0 | ISO/IEC 13818-1 reservedUser private

PID Allocation for DVB SITable PID Value

PATCATTSDTreservedNIT,STSDT, BAT, STEIT, STRST, STTDT, TOT, STnetwork synchronizationreserved for future useinband signallingmeasurementDITSIT

0x00000x00010x00020x0003 to 0x000F0x00100x00110x00120x00130x00140x00150x0016 to 0x001B0x001C0x001D0x001E0x001F

ETSI TR 101 290 -Table Timing IntervalsTable Type PID Max/Min

[1] ETSI TR 101 211, TSDT interval defined in section 4.1.9[2] ETSI TR 101 211, Additional EIT Actual/Other Schedule intervalsdefined for:-DVB Satellite/Cable in section 4.4.1-DVB Terrestrial in section 4.4.2

PATTSDTNIT actualNIT otherSDT actualSDT otherBATEIT actual present-followingEIT other present-followingTOTTDTPMT

0x 00 500 ms0x 02 10000 ms [1]0x10 10000 / 25 ms0x10 10000 / 25 ms0x11 2000 / 25 ms0x11 10000 / 25 ms0x11 10000 / 25 ms0x12 2000 / 25 ms [2]0x12 10000 / 25 ms [2]0x14 30000 / 25 ms0x14 30000 / 25 msALL 500 ms

MPEG-2 Transport StreamISO/IEC 13818-1 International Standard

Service Information (SI) in DVB SystemsETSI EN 300 468 International Standard

HeaderHeader

OptionalFields

PES PACKET SYNTAX DIAGRAM

2 bits

PESScrambling

Control

DataAlignmentIndicator

PESHeader

Data Length

StuffingBytes(0xFF)

PESPriority

Originalor Copy

OptionalFields

2 bits 1 bit 1 bit 1 bit 8 bits 8 bits m*8 bits1 bit

‘10’

DSMTrickMode

PTSDTS

ESRate

AdditionalCopy Info

33 bits33 bits 42 bits 22 bits 8 bits 7 bits 16 bits

ESCR

ESCR

PESExtension

Copyright 7 Flags

24 bits 8 bits 16 bits

PES Packet Data BytesStream

Id

PacketStart Code

Prefix

PESPacketLength

OptionalPES

HEADER

PreviousPESCRC

OptionalFields5 Flags

P-STDBuffer

PESPrivateData

PacketHeaderField

PESExtension

Field Length

PESExtensionField Data

128 bits 8 bits 8 bits 16 bits 7 bits

Program PacketSequence Counter

Selection Information Section (SIT)Syntax No. of bits

selection_information_section ( ) {table_id 8section_syntax_indicator 1DVB_reserved_future_use 1ISO_reserved 2section_length 12DVB_reserved_future_use 16ISO_reserved 2version_number 5current_next_indicator 1section_number 8last_section_number 8DVB_reserved_for_future_use 4transmission_info_loop_length 12for(i=0;i<N;i++) {

descriptor ( )}for(i=0;i<N;i++) {

service_id 16DVB_reserved_future_use 1running_status 3service_loop_length 12for(j=0;j<N;j++) {

descriptor ( )}

}CRC_32 32

}

Discontinuity Information Section(DIT)

Syntax No. of bits

discontinuity_information_section ( ) {table_id 8section_syntax_indicator 1reserved_future_use 1reserved 2section_length 12transition_flag 1reserved_future_use 7

}

Program association section (PAT)Syntax No. of bits

program_association_section( ) {table_id 8section_syntax_indicator 1‘0’ 1reserved 2section_length 12transport_stream_id 16reserved 2version_number 5current_next_indicator 1section_number 8last_section_number 8fo r ( j=0; j< N; j++) {

program_number 16reserved 3if (program_number==’0’ ) {

network_PID 13}else {

program_map_PID 13}

}CRC_32 32

}

Conditional access section (CAT)Syntax No. of bits

CA_section( ) {table_id 8section_syntax_indicator 1‘0’ 1reserved 2section_length 12reserved 18version_number 5current_next_indicator 1section_number 8last_section number 8for (i=0;i<N;i++) {

descriptor( )}CRC_32 32

}

Transport Stream Description Section(TSDT)

Syntax No. of bits

TS_Description_section( ) {table_id 8section_syntax_indicator 1‘0’ 1reserved 2section_length 12reserved 18version_number 5current_next_indicator 1section_number 8last_section number 8for (i=0;i<N;i++) {

descriptor( )}CRC_32 32

}

Transport Stream program map section (PMT)

Syntax No. of bits

TS_program_map_section( ) {table_id 8section_syntax_indicator 1‘0’ 1reserved 2section_length 12program_number 16reserved 2version_number 5current_next_indicator 1section_number 8last_section number 8reserved 3PCR_PID 13reserved 4program_info_length 12for (i=0;i<N;i++) {

descriptor( )}for (i=0;i<N1;i++) {

stream_type 8reserved 3elementary_PID 13reserved 4ES_info_length 12for (j=0;j<N2;j++) {

descriptor( )}

}CRC_32 32

}

Network Information section (NIT)Syntax No. of bits

network_information_section( ) {table_id 8section_syntax_indicator 1reserved_future_use 1reserved 2section_length 12network_id 16reserved 2version_number 5current_next_indicator 1section_number 8last_section number 8reserved_future_use 4network_descriptors_length 12for(i=0;i<N;i++){

descriptor( )}reserved_future_use 4transport_stream_loop_length 12for(i=0;i<N;i++){

transport_stream_id 16original_network_id 16reserved_future_use 4transport_descriptors_length 12for(j=0;j<N;j++){

descriptor()}

}CRC_32 32

}

Service description section (SDT)Syntax No. of bits

service_description_section( ){table_id 8section_syntax_indicator 1reserved_future_use 1reserved 2section_length 12transport_stream_id 16reserved 2version_number 5current_next_indicator 1section_number 8last_section_number 8original_network_id 16reserved_future_use 8 for(i=0;i<N;i++) {

service_id 16reserved_future_use 6EIT_schedule_flag 1EIT_present_following_flag 1running_status 3free_CA_mode 1descriptors_loop_length 12for(j=0;j<N;j++){

descriptor( )}

}CRC_32 32

}

Bouquet association section (BAT)Syntax No. of bits

bouquet_association_section(){table_id 8section_syntax_indicator 1reserved_future_use 1reserved 2section_length 12bouquet_id 16reserved 2version_number 5current_next_indicator 1section_number 8last_section number 8reserved_future_use 4bouquet_descriptors_length 12 for(i=0;i<N;i++){

descriptor( )}reserved_future_use 4transport_stream_loop_length 12for(i=0;i<N;i++){

transport_stream_id 16original_network_id 16reserved_future_use 4transport_descriptors_length 12for(j=0;j<N;j++) {

descriptor ( )}

}CRC_32 32

}

Event Information Section (EIT)Syntax No. of bits

event_information_section( ) {table_id 8section_syntax_indicator 1reserved_future_use 1reserved 2section_length 12service_id 16reserved 2version_number 5current_next_indicator 1section_number 8last_section_number 8transport_stream_id 16original_network_id 16segment_last_section_number 8last_table_id 8 for(i=0;i<N;i++) {

event_id 16start_time 40duration 24running_status 3free_CA_mode 1descriptors_loop_length 12for (j=0;j<N;j++) {

descriptor ( )}

}CRC_32 32

}

Running status section (RST)Syntax No. of bits

running_status_section ( ) {table_id 8section_syntax_indicator 1reserved_future_use 1reserved 2section_length 12for(i=0;i<N;i++){

transport_stream_id 16original_network_id 16service_id 16event_id 16reserved_future_use 5running_status 3

}}

Time offset section (TOT)Syntax No. of bits

time_offset_section ( ) {table_id 8section_syntax_indicator 1reserved_future_use 1reserved 2section_length 12UTC_time 40reserved 4descriptors_loop_length 12for(i=0;i<N;i++){

descriptor ( )}CRC_32 32

}

Stuffing section (ST)Syntax No. of bits

stuffing_section ( ) {table_id 8section_syntax_indicator 1reserved_future_use 1reserved 2section_length 12for(i=0;i<N;i++){

data_byte 8}

}

Time and date section (TDT)Syntax No. of bits

time_date_section ( ){table_id 8section_syntax_indicator 1reserved_future_use 1reserved 2section_length 12UTC_time 40

}

PAT NIT NIT

BAT

SDTSDT

EIT

TDT

RST

TOT

ST

EIT EIT

MPEG-2 DVB DVB

NetworkInformation

BouquetAssociation

ServiceDescription

EventInformation

RunningStatus

TimeOffset

Stuffing

(Defined)PID=0x0000

(Mandatory)PID=0x0010

(Optional)PID=0x0010

PID=0x0001

PID=0x0011

PID=0x0012

PID=0x0014

PID=0x0013

PID=0x0014

PID=0x0010 to 0x0014

PID=0x0012 PID=0x0012

PID=0x0011

PID=0x0011

Actual transportstream

Other transportstream


Time & Date



present/following

Actual transportstreamschedule


present/following

schedule

PID=0x10 to 0x1FFE

PID=0x0002

CAT

PMT

TSDT

Private SectionSyntax No. of bits

private_section ( ) {table_id 8section_syntax_indicator 1private_indicator 1reserved 2private_section_length 12if(section_syntax_indicator== ‘0’) {

for(i=0; i<N; i++) {private_data_byte 8

}}else {

table_id_extension 16reserved 2version_number 5current_next_indicator 1section_number 8last_section_number 8for(i=0;i<private_section_length-9;i++) {

private_data_byte 8

}CRC_32 32

}}

Photo courtesy of NASA/JPL/Caltech