astits

package module

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Versions in this module

v1

v1.15.0

Jan 23, 2026

v1.14.0

Oct 27, 2025

v1.13.0

Aug 8, 2023

v1.12.0

Aug 4, 2023

Changes in this version

+ func DemuxerOptLogger(l astikit.StdLogger) func(*Demuxer)

+ func DemuxerOptPacketSkipper(s PacketSkipper) func(*Demuxer)

+ type PacketSkipper func(p *Packet) (skip bool)

v1.11.0

Sep 8, 2022

Changes in this version

type StreamType

+ const StreamTypeSCTE35

v1.10.0

Oct 1, 2021

v1.9.0

Jul 5, 2021

v1.8.0

Mar 27, 2021

v1.7.0

Mar 24, 2021

Changes in this version

+ const MpegTsPacketSize

+ var ErrPCRPIDInvalid = errors.New("astits: PCR PID invalid")

+ var ErrPIDAlreadyExists = errors.New("astits: PID already exists")

+ var ErrPIDNotFound = errors.New("astits: PID not found")

+ func DemuxerOptPacketSize(packetSize int) func(*Demuxer)

+ func DemuxerOptPacketsParser(p PacketsParser) func(*Demuxer)

+ func MuxerOptTablesRetransmitPeriod(newPeriod int) func(*Muxer)

type Demuxer

+ func NewDemuxer(ctx context.Context, r io.Reader, opts ...func(*Demuxer)) (d *Demuxer)

+ type DemuxerData struct

+ EIT *EITData

+ FirstPacket *Packet

+ NIT *NITData

+ PAT *PATData

+ PES *PESData

+ PID uint16

+ PMT *PMTData

+ SDT *SDTData

+ TOT *TOTData

+ type Muxer struct

+ func NewMuxer(ctx context.Context, w io.Writer, opts ...func(*Muxer)) *Muxer

+ func (m *Muxer) AddElementaryStream(es PMTElementaryStream) error

+ func (m *Muxer) RemoveElementaryStream(pid uint16) error

+ func (m *Muxer) SetPCRPID(pid uint16)

+ func (m *Muxer) WriteData(d *MuxerData) (int, error)

+ func (m *Muxer) WritePacket(p *Packet) (int, error)

+ func (m *Muxer) WriteTables() (int, error)

+ type MuxerData struct

+ AdaptationField *PacketAdaptationField

+ PES *PESData

+ PID uint16

type PESHeader

+ func (h *PESHeader) IsVideoStream() bool

+ type PSITableID uint16

+ const PSITableIDBAT

+ const PSITableIDDIT

+ const PSITableIDEITEnd

+ const PSITableIDEITStart

+ const PSITableIDNITVariant1

+ const PSITableIDNITVariant2

+ const PSITableIDNull

+ const PSITableIDPAT

+ const PSITableIDPMT

+ const PSITableIDRST

+ const PSITableIDSDTVariant1

+ const PSITableIDSDTVariant2

+ const PSITableIDSIT

+ const PSITableIDST

+ const PSITableIDTDT

+ const PSITableIDTOT

+ func (t PSITableID) Type() string

type PacketAdaptationField

+ IsOneByteStuffing bool

+ StuffingLength int

+ type StreamType uint8

+ const StreamTypeAACAudio

+ const StreamTypeAACLATMAudio

+ const StreamTypeAC3Audio

+ const StreamTypeCAVSVideo

+ const StreamTypeDIRACVideo

+ const StreamTypeDTSAudio

+ const StreamTypeEAC3Audio

+ const StreamTypeHEVCVideo

+ const StreamTypeMPEG1Video

+ const StreamTypeMPEG2Audio

+ const StreamTypeMPEG2Video

+ const StreamTypeMPEG4Video

+ const StreamTypeMetadata

+ const StreamTypePrivateData

+ const StreamTypePrivateSection

+ const StreamTypeTRUEHDAudio

+ const StreamTypeVC1Video

+ func (t StreamType) IsAudio() bool

+ func (t StreamType) IsVideo() bool

+ func (t StreamType) String() string

+ func (t StreamType) ToPESStreamID() uint8

v1.6.1

Nov 7, 2020

v1.6.0

Nov 5, 2020

Changes in this version

type Descriptor

+ Unknown *DescriptorUnknown

type DescriptorExtension

+ Unknown *[]byte

+ type DescriptorUnknown struct

+ Content []byte

+ Tag uint8

v1.5.0

Nov 4, 2020

Changes in this version

+ const StreamTypeADTS

+ const StreamTypeH264Video

+ const StreamTypeH265Video

+ func SetLogger(l astikit.StdLogger)

v1.4.0

Jun 23, 2020

v1.3.0

Jan 8, 2020

v1.2.0

Jan 2, 2020

v1.1.0

Jan 2, 2020

v1.0.1

Dec 4, 2019

v1.0.0

Aug 9, 2019

Changes in this version

+ const AudioTypeCleanEffects

+ const AudioTypeHearingImpaired

+ const AudioTypeVisualImpairedCommentary

+ const DataStreamAligmentAudioSyncWord

+ const DataStreamAligmentVideoAccessUnit

+ const DataStreamAligmentVideoGOPOrSEQ

+ const DataStreamAligmentVideoSEQ

+ const DataStreamAligmentVideoSliceOrAccessUnit

+ const DescriptorTagAC3

+ const DescriptorTagAVCVideo

+ const DescriptorTagComponent

+ const DescriptorTagContent

+ const DescriptorTagDataStreamAlignment

+ const DescriptorTagEnhancedAC3

+ const DescriptorTagExtendedEvent

+ const DescriptorTagExtension

+ const DescriptorTagExtensionSupplementaryAudio

+ const DescriptorTagISO639LanguageAndAudioType

+ const DescriptorTagLocalTimeOffset

+ const DescriptorTagMaximumBitrate

+ const DescriptorTagNetworkName

+ const DescriptorTagParentalRating

+ const DescriptorTagPrivateDataIndicator

+ const DescriptorTagPrivateDataSpecifier

+ const DescriptorTagRegistration

+ const DescriptorTagService

+ const DescriptorTagShortEvent

+ const DescriptorTagStreamIdentifier

+ const DescriptorTagSubtitling

+ const DescriptorTagTeletext

+ const DescriptorTagVBIData

+ const DescriptorTagVBITeletext

+ const PIDCAT

+ const PIDNull

+ const PIDPAT

+ const PIDTSDT

+ const PSITableTypeBAT

+ const PSITableTypeDIT

+ const PSITableTypeEIT

+ const PSITableTypeNIT

+ const PSITableTypeNull

+ const PSITableTypePAT

+ const PSITableTypePMT

+ const PSITableTypeRST

+ const PSITableTypeSDT

+ const PSITableTypeSIT

+ const PSITableTypeST

+ const PSITableTypeTDT

+ const PSITableTypeTOT

+ const PSITableTypeUnknown

+ const PSTDBufferScale1024Bytes

+ const PSTDBufferScale128Bytes

+ const PTSDTSIndicatorBothPresent

+ const PTSDTSIndicatorIsForbidden

+ const PTSDTSIndicatorNoPTSOrDTS

+ const PTSDTSIndicatorOnlyPTS

+ const RunningStatusNotRunning

+ const RunningStatusPausing

+ const RunningStatusRunning

+ const RunningStatusServiceOffAir

+ const RunningStatusStartsInAFewSeconds

+ const RunningStatusUndefined

+ const ScramblingControlNotScrambled

+ const ScramblingControlReservedForFutureUse

+ const ScramblingControlScrambledWithEvenKey

+ const ScramblingControlScrambledWithOddKey

+ const ServiceTypeDigitalTelevisionService

+ const StreamIDPaddingStream

+ const StreamIDPrivateStream1

+ const StreamIDPrivateStream2

+ const StreamTypeLowerBitrateVideo

+ const StreamTypeMPEG1Audio

+ const StreamTypeMPEG2HalvedSampleRateAudio

+ const StreamTypeMPEG2PacketizedData

+ const TeletextTypeAdditionalInformationPage

+ const TeletextTypeInitialTeletextPage

+ const TeletextTypeProgramSchedulePage

+ const TeletextTypeTeletextSubtitlePage

+ const TeletextTypeTeletextSubtitlePageForHearingImpairedPeople

+ const TrickModeControlFastForward

+ const TrickModeControlFastReverse

+ const TrickModeControlFreezeFrame

+ const TrickModeControlSlowMotion

+ const TrickModeControlSlowReverse

+ const VBIDataServiceIDClosedCaptioning

+ const VBIDataServiceIDEBUTeletext

+ const VBIDataServiceIDInvertedTeletext

+ const VBIDataServiceIDMonochrome442Samples

+ const VBIDataServiceIDVPS

+ const VBIDataServiceIDWSS

+ var ErrNoMorePackets = errors.New("astits: no more packets")

+ var ErrPacketMustStartWithASyncByte = errors.New("astits: packet must start with a sync byte")

+ func OptPacketSize(packetSize int) func(*Demuxer)

+ func OptPacketsParser(p PacketsParser) func(*Demuxer)

+ type ClockReference struct

+ Base int

+ Extension int

+ func (p ClockReference) Duration() time.Duration

+ func (p ClockReference) Time() time.Time

+ type DSMTrickMode struct

+ FieldID uint8

+ FrequencyTruncation uint8

+ IntraSliceRefresh uint8

+ RepeatControl uint8

+ TrickModeControl uint8

+ type Data struct

+ EIT *EITData

+ FirstPacket *Packet

+ NIT *NITData

+ PAT *PATData

+ PES *PESData

+ PID uint16

+ PMT *PMTData

+ SDT *SDTData

+ TOT *TOTData

+ type Demuxer struct

+ func New(ctx context.Context, r io.Reader, opts ...func(*Demuxer)) (d *Demuxer)

+ func (dmx *Demuxer) NextData() (d *Data, err error)

+ func (dmx *Demuxer) NextPacket() (p *Packet, err error)

+ func (dmx *Demuxer) Rewind() (n int64, err error)

+ type Descriptor struct

+ AC3 *DescriptorAC3

+ AVCVideo *DescriptorAVCVideo

+ Component *DescriptorComponent

+ Content *DescriptorContent

+ DataStreamAlignment *DescriptorDataStreamAlignment

+ EnhancedAC3 *DescriptorEnhancedAC3

+ ExtendedEvent *DescriptorExtendedEvent

+ Extension *DescriptorExtension

+ ISO639LanguageAndAudioType *DescriptorISO639LanguageAndAudioType

+ Length uint8

+ LocalTimeOffset *DescriptorLocalTimeOffset

+ MaximumBitrate *DescriptorMaximumBitrate

+ NetworkName *DescriptorNetworkName

+ ParentalRating *DescriptorParentalRating

+ PrivateDataIndicator *DescriptorPrivateDataIndicator

+ PrivateDataSpecifier *DescriptorPrivateDataSpecifier

+ Registration *DescriptorRegistration

+ Service *DescriptorService

+ ShortEvent *DescriptorShortEvent

+ StreamIdentifier *DescriptorStreamIdentifier

+ Subtitling *DescriptorSubtitling

+ Tag uint8

+ Teletext *DescriptorTeletext

+ UserDefined []byte

+ VBIData *DescriptorVBIData

+ VBITeletext *DescriptorTeletext

+ type DescriptorAC3 struct

+ ASVC uint8

+ AdditionalInfo []byte

+ BSID uint8

+ ComponentType uint8

+ HasASVC bool

+ HasBSID bool

+ HasComponentType bool

+ HasMainID bool

+ MainID uint8

+ type DescriptorAVCVideo struct

+ AVC24HourPictureFlag bool

+ AVCStillPresent bool

+ CompatibleFlags uint8

+ ConstraintSet0Flag bool

+ ConstraintSet1Flag bool

+ ConstraintSet2Flag bool

+ LevelIDC uint8

+ ProfileIDC uint8

+ type DescriptorComponent struct

+ ComponentTag uint8

+ ComponentType uint8

+ ISO639LanguageCode []byte

+ StreamContent uint8

+ StreamContentExt uint8

+ Text []byte

+ type DescriptorContent struct

+ Items []*DescriptorContentItem

+ type DescriptorContentItem struct

+ ContentNibbleLevel1 uint8

+ ContentNibbleLevel2 uint8

+ UserByte uint8

+ type DescriptorDataStreamAlignment struct

+ Type uint8

+ type DescriptorEnhancedAC3 struct

+ ASVC uint8

+ AdditionalInfo []byte

+ BSID uint8

+ ComponentType uint8

+ HasASVC bool

+ HasBSID bool

+ HasComponentType bool

+ HasMainID bool

+ HasSubStream1 bool

+ HasSubStream2 bool

+ HasSubStream3 bool

+ MainID uint8

+ MixInfoExists bool

+ SubStream1 uint8

+ SubStream2 uint8

+ SubStream3 uint8

+ type DescriptorExtendedEvent struct

+ ISO639LanguageCode []byte

+ Items []*DescriptorExtendedEventItem

+ LastDescriptorNumber uint8

+ Number uint8

+ Text []byte

+ type DescriptorExtendedEventItem struct

+ Content []byte

+ Description []byte

+ type DescriptorExtension struct

+ SupplementaryAudio *DescriptorExtensionSupplementaryAudio

+ Tag uint8

+ type DescriptorExtensionSupplementaryAudio struct

+ EditorialClassification uint8

+ HasLanguageCode bool

+ LanguageCode []byte

+ MixType bool

+ PrivateData []byte

+ type DescriptorISO639LanguageAndAudioType struct

+ Language []byte

+ Type uint8

+ type DescriptorLocalTimeOffset struct

+ Items []*DescriptorLocalTimeOffsetItem

+ type DescriptorLocalTimeOffsetItem struct

+ CountryCode []byte

+ CountryRegionID uint8

+ LocalTimeOffset time.Duration

+ LocalTimeOffsetPolarity bool

+ NextTimeOffset time.Duration

+ TimeOfChange time.Time

+ type DescriptorMaximumBitrate struct

+ Bitrate uint32

+ type DescriptorNetworkName struct

+ Name []byte

+ type DescriptorParentalRating struct

+ Items []*DescriptorParentalRatingItem

+ type DescriptorParentalRatingItem struct

+ CountryCode []byte

+ Rating uint8

+ func (d DescriptorParentalRatingItem) MinimumAge() int

+ type DescriptorPrivateDataIndicator struct

+ Indicator uint32

+ type DescriptorPrivateDataSpecifier struct

+ Specifier uint32

+ type DescriptorRegistration struct

+ AdditionalIdentificationInfo []byte

+ FormatIdentifier uint32

+ type DescriptorService struct

+ Name []byte

+ Provider []byte

+ Type uint8

+ type DescriptorShortEvent struct

+ EventName []byte

+ Language []byte

+ Text []byte

+ type DescriptorStreamIdentifier struct

+ ComponentTag uint8

+ type DescriptorSubtitling struct

+ Items []*DescriptorSubtitlingItem

+ type DescriptorSubtitlingItem struct

+ AncillaryPageID uint16

+ CompositionPageID uint16

+ Language []byte

+ Type uint8

+ type DescriptorTeletext struct

+ Items []*DescriptorTeletextItem

+ type DescriptorTeletextItem struct

+ Language []byte

+ Magazine uint8

+ Page uint8

+ Type uint8

+ type DescriptorVBIData struct

+ Services []*DescriptorVBIDataService

+ type DescriptorVBIDataDescriptor struct

+ FieldParity bool

+ LineOffset uint8

+ type DescriptorVBIDataService struct

+ DataServiceID uint8

+ Descriptors []*DescriptorVBIDataDescriptor

+ type EITData struct

+ Events []*EITDataEvent

+ LastTableID uint8

+ OriginalNetworkID uint16

+ SegmentLastSectionNumber uint8

+ ServiceID uint16

+ TransportStreamID uint16

+ type EITDataEvent struct

+ Descriptors []*Descriptor

+ Duration time.Duration

+ EventID uint16

+ HasFreeCSAMode bool

+ RunningStatus uint8

+ StartTime time.Time

+ type NITData struct

+ NetworkDescriptors []*Descriptor

+ NetworkID uint16

+ TransportStreams []*NITDataTransportStream

+ type NITDataTransportStream struct

+ OriginalNetworkID uint16

+ TransportDescriptors []*Descriptor

+ TransportStreamID uint16

+ type PATData struct

+ Programs []*PATProgram

+ TransportStreamID uint16

+ type PATProgram struct

+ ProgramMapID uint16

+ ProgramNumber uint16

+ type PESData struct

+ Data []byte

+ Header *PESHeader

+ type PESHeader struct

+ OptionalHeader *PESOptionalHeader

+ PacketLength uint16

+ StreamID uint8

+ type PESOptionalHeader struct

+ AdditionalCopyInfo uint8

+ CRC uint16

+ DSMTrickMode *DSMTrickMode

+ DTS *ClockReference

+ DataAlignmentIndicator bool

+ ESCR *ClockReference

+ ESRate uint32

+ Extension2Data []byte

+ Extension2Length uint8

+ HasAdditionalCopyInfo bool

+ HasCRC bool

+ HasDSMTrickMode bool

+ HasESCR bool

+ HasESRate bool

+ HasExtension bool

+ HasExtension2 bool

+ HasOptionalFields bool

+ HasPSTDBuffer bool

+ HasPackHeaderField bool

+ HasPrivateData bool

+ HasProgramPacketSequenceCounter bool

+ HeaderLength uint8

+ IsCopyrighted bool

+ IsOriginal bool

+ MPEG1OrMPEG2ID uint8

+ MarkerBits uint8

+ OriginalStuffingLength uint8

+ PSTDBufferScale uint8

+ PSTDBufferSize uint16

+ PTS *ClockReference

+ PTSDTSIndicator uint8

+ PackField uint8

+ PacketSequenceCounter uint8

+ Priority bool

+ PrivateData []byte

+ ScramblingControl uint8

+ type PMTData struct

+ ElementaryStreams []*PMTElementaryStream

+ PCRPID uint16

+ ProgramDescriptors []*Descriptor

+ ProgramNumber uint16

+ type PMTElementaryStream struct

+ ElementaryPID uint16

+ ElementaryStreamDescriptors []*Descriptor

+ StreamType uint8

+ type PSIData struct

+ PointerField int

+ Sections []*PSISection

+ type PSISection struct

+ CRC32 uint32

+ Header *PSISectionHeader

+ Syntax *PSISectionSyntax

+ type PSISectionHeader struct

+ PrivateBit bool

+ SectionLength uint16

+ SectionSyntaxIndicator bool

+ TableID int

+ TableType string

+ type PSISectionSyntax struct

+ Data *PSISectionSyntaxData

+ Header *PSISectionSyntaxHeader

+ type PSISectionSyntaxData struct

+ EIT *EITData

+ NIT *NITData

+ PAT *PATData

+ PMT *PMTData

+ SDT *SDTData

+ TOT *TOTData

+ type PSISectionSyntaxHeader struct

+ CurrentNextIndicator bool

+ LastSectionNumber uint8

+ SectionNumber uint8

+ TableIDExtension uint16

+ VersionNumber uint8

+ type Packet struct

+ AdaptationField *PacketAdaptationField

+ Header *PacketHeader

+ Payload []byte

+ type PacketAdaptationExtensionField struct

+ DTSNextAccessUnit *ClockReference

+ HasLegalTimeWindow bool

+ HasPiecewiseRate bool

+ HasSeamlessSplice bool

+ LegalTimeWindowIsValid bool

+ LegalTimeWindowOffset uint16

+ Length int

+ PiecewiseRate uint32

+ SpliceType uint8

+ type PacketAdaptationField struct

+ AdaptationExtensionField *PacketAdaptationExtensionField

+ DiscontinuityIndicator bool

+ ElementaryStreamPriorityIndicator bool

+ HasAdaptationExtensionField bool

+ HasOPCR bool

+ HasPCR bool

+ HasSplicingCountdown bool

+ HasTransportPrivateData bool

+ Length int

+ OPCR *ClockReference

+ PCR *ClockReference

+ RandomAccessIndicator bool

+ SpliceCountdown int

+ TransportPrivateData []byte

+ TransportPrivateDataLength int

+ type PacketHeader struct

+ ContinuityCounter uint8

+ HasAdaptationField bool

+ HasPayload bool

+ PID uint16

+ PayloadUnitStartIndicator bool

+ TransportErrorIndicator bool

+ TransportPriority bool

+ TransportScramblingControl uint8

+ type PacketsParser func(ps []*Packet) (ds []*Data, skip bool, err error)

+ type SDTData struct

+ OriginalNetworkID uint16

+ Services []*SDTDataService

+ TransportStreamID uint16

+ type SDTDataService struct

+ Descriptors []*Descriptor

+ HasEITPresentFollowing bool

+ HasEITSchedule bool

+ HasFreeCSAMode bool

+ RunningStatus uint8

+ ServiceID uint16

+ type TOTData struct

+ Descriptors []*Descriptor

+ UTCTime time.Time

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