Created by the British Broadcasting Corporation.
A random access point within a Dirac bytestream.
#include <accessunit_byteio.h>
Public Member Functions | |
| SequenceHeaderByteIO (SourceParams &src_params, EncoderParams &enc_params) | |
| Constructor (encoding) More... | |
| SequenceHeaderByteIO (const ParseUnitByteIO &parseunit_byteio, ParseParams &parse_params, SourceParams &src_params, CodecParams &codec_params) | |
| Constructor (decoding) More... | |
| ~SequenceHeaderByteIO () | |
| Destructor. More... | |
| bool | Input () |
| Parses data in Dirac-stream format (decoding) More... | |
| void | Output () |
| Writes access-unit info to Dirac stream-format (encoding) More... | |
| int | GetSize () const |
| Gets size (in bytes) More... | |
| ParseUnitType | GetType () const |
| Gets parse-unit type. More... | |
Public Member Functions inherited from dirac::ParseUnitByteIO | |
| ParseUnitByteIO () | |
| Constructor. More... | |
| ParseUnitByteIO (const ByteIO &byte_io) | |
| Constructor. More... | |
| ParseUnitByteIO (const ParseUnitByteIO &parseunit_byteio) | |
| Constructor. More... | |
| ~ParseUnitByteIO () | |
| Destructor. More... | |
| virtual void | CollateByteStats (DiracByteStats &dirac_byte_stats) |
| Gathers byte stats on the parse-unit data. More... | |
| bool | Input () |
| Reads from byte-stream to find parse data. More... | |
| bool | IsValid () |
| Accesses validity of a unit by comparing it with an adjacent unit. More... | |
| bool | CanSkip () |
| Can Skip past the entire parse-unit. More... | |
| virtual const std::string | GetBytes () |
| Gets string containing coded bytes. More... | |
| void | SetAdjacentParseUnits (ParseUnitByteIO *p_prev_parseunit) |
| Set next/previous parse-unit values. More... | |
| virtual int | GetSize () const |
| Gets size (in bytes) More... | |
| int | GetNextParseOffset () const |
| Gets expected number of bytes to start of next parse-unit. More... | |
| int | GetPreviousParseOffset () const |
| Gets number of bytes to start of previous parse-unit. More... | |
| virtual ParseUnitType | GetType () const |
| Gets parse-unit type. More... | |
| bool | IsSeqHeader () const |
| Returns true is parse unit is a Sequence Header. More... | |
| bool | IsEndOfSequence () const |
| Returns true is parse unit is an End of Sequence unit. More... | |
| bool | IsAuxiliaryData () const |
| Returns true is parse unit is Auxiliary Data. More... | |
| bool | IsPaddingData () const |
| Returns true is parse unit is Padding data. More... | |
| bool | IsPicture () const |
| Returns true is parse unit is Picture data. More... | |
| bool | IsLowDelay () const |
| Returns true is parse unit is Low Delay Sybtax unit. More... | |
| bool | IsCoreSyntax () const |
| Returns true is parse unit is Core syntax unit. More... | |
| bool | IsUsingAC () const |
| Returns true is parse unit uses Arithmetic coding. More... | |
Public Member Functions inherited from dirac::ByteIO | |
| ByteIO (bool new_stream=true) | |
| Default constructor. More... | |
| ByteIO (const ByteIO &stream_data) | |
| Constructor. More... | |
| virtual | ~ByteIO () |
| Destructor. More... | |
| virtual void | CollateByteStats (DiracByteStats &dirac_byte_stats) |
| Gathers byte-stream statistics. More... | |
| virtual const std::string | GetBytes () |
| Get bytes in Dirac-bytestream format. More... | |
| int | GetReadBytePosition () const |
| Get position of read stream pointer. More... | |
| virtual int | GetSize () const |
| Gets size (in bytes) More... | |
| void | SetByteParams (const ByteIO &byte_io) |
| Copies stream source/destination info. More... | |
| void | ByteAlignOutput () |
| Sync input for byte-alignment. More... | |
| void | WriteUint (unsigned int value) |
| Ouputs an unsigned integer in interleaved exp Golomb format. More... | |
| void | SetBitsLeft (int left_bits) |
| Sets input size in bits. More... | |
| int | BitsLeft (void) |
| Sets input size in bits. More... | |
Private Member Functions | |
| unsigned char | CalcParseCode () const |
| Calculates parse-code based on access-unit parameters (encoding) More... | |
| void | InputSourceParams () |
| Parse source attributes from bytestream-compatible input (decoding) More... | |
| void | InputParseParams () |
| Parse parse attributes from bytestream-compatible input (decoding) More... | |
| void | InputCodingParams () |
| Parse Coding attributes from bytestream-compatible input (decoding) More... | |
| void | OutputSourceParams () |
| Output source attributes for bytestream-compatible output (encoding) More... | |
| void | OutputParseParams () |
| Output parse attributes for bytestream-compatible output (encoding) More... | |
| void | OutputCodingParams () |
| Output coding attributes for bytestream-compatible output (encoding) More... | |
Private Attributes | |
| ParseParams | m_parse_params |
| Current parse parameters. More... | |
| ParseParamsByteIO | m_parseparams_byteio |
| Parse-params byte input/output. More... | |
| SourceParams | m_default_src_params |
| Default source parameters. More... | |
| SourceParams & | m_src_params |
| Current source parameters. More... | |
| SourceParamsByteIO | m_sourceparams_byteio |
| Source-params byte input/output. More... | |
| CodecParams & | m_codec_params |
| Current codec parameters. More... | |
| CodingParamsByteIO | m_codingparams_byteio |
| Coding-params byte input/output. More... | |
Additional Inherited Members | |
Protected Member Functions inherited from dirac::ParseUnitByteIO | |
| virtual int | CalcNextUnitOffset () |
| Calculates number of bytes to start of next unit. More... | |
| virtual unsigned char | CalcParseCode () const |
| Pure virtual method for calculating parse-code. More... | |
| bool | SyncToUnitStart () |
| Locates start of parse-unit. More... | |
| unsigned char | GetParseCode () const |
| Get parse code. More... | |
Protected Member Functions inherited from dirac::ByteIO | |
| bool | CanRead () const |
| bool | GetBit (unsigned char &c, int pos) const |
| void | SetBit (unsigned char &c, int pos) const |
| void | SetBits (unsigned char &c, unsigned char bits) const |
| void | ByteAlignInput () |
| Sync input for byte-alignment. More... | |
| bool | ReadBool () |
| Reads boolean value. More... | |
| bool | ReadBoolB () |
| Reads boolean value - bounded i/o. More... | |
| int | ReadBit () |
| Reads next bit. More... | |
| int | ReadBitB () |
| Reads next bit - bounded i/o. More... | |
| unsigned int | ReadNBits (int count) |
| Reads next 'count' bits. More... | |
| void | InputBytes (char *data, int count) |
| Reads from stream. More... | |
| void | FlushInputB () |
| Flushes the bounde input. More... | |
| int | ReadSint () |
| Reads a signed integer in interleaved exp-Golomb format return Signed integer read. More... | |
| int | ReadSintB () |
| Reads a signed integer in interleaved exp-Golomb format from bounded input return Signed integer read. More... | |
| unsigned int | ReadUint () |
| Reads an unsigned integer in interleaved exp Golomb format. More... | |
| unsigned int | ReadUintB () |
| Reads an unsigned integer in interleaved exp Golomb format from bounded input. More... | |
| unsigned int | ReadUintLit (const int byte_size) |
| Reads a fixed length unsigned integer from the stream in big endian. More... | |
| unsigned char | InputUnByte () |
| Reads a byte from the stream. More... | |
| std::string | InputUnString (const int count) |
| Reads a series of bytes from a stream. More... | |
| void | WriteBit (const bool &bit) |
| Outputs a bit. More... | |
| int | WriteNBits (unsigned int val) |
| Outputs an unsigned integer. More... | |
| void | WriteNBits (unsigned int val, int count) |
| Outputs an n bit integer. More... | |
| void | OutputBytes (const std::string &bytes) |
| Outputs a series of bytes. More... | |
| void | OutputCurrentByte () |
| Outputs current byte contents. More... | |
| void | WriteSint (int val) |
| Outputs an integer in Golomb signed integer format. More... | |
| void | WriteUintLit (const unsigned int &value, const int &length) |
| Output unsigned int value in big endian format. More... | |
| void | RemoveRedundantBytes (const int count) |
| Removes portion of byte-stream no longer required. More... | |
| void | SeekGet (const int offset, std::ios_base::seekdir dir) |
Protected Attributes inherited from dirac::ByteIO | |
| std::stringstream * | mp_stream |
| Input/output steam. More... | |
| dirac::SequenceHeaderByteIO::SequenceHeaderByteIO | ( | SourceParams & | src_params, |
| EncoderParams & | enc_params | ||
| ) |
| src_params | Source parameters for current AccessUnit |
| enc_params | Encoder parameters for current AccessUnit |
| dirac::SequenceHeaderByteIO::SequenceHeaderByteIO | ( | const ParseUnitByteIO & | parseunit_byteio, |
| ParseParams & | parse_params, | ||
| SourceParams & | src_params, | ||
| CodecParams & | codec_params | ||
| ) |
| parseunit_byteio | Source of data |
| parse_params | Destination of parse paramters data |
| src_params | Destination of source paramters data |
| codec_params | Destination of coding paramters data |
| dirac::SequenceHeaderByteIO::~SequenceHeaderByteIO | ( | ) |
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privatevirtual |
Reimplemented from dirac::ParseUnitByteIO.
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Reimplemented from dirac::ParseUnitByteIO.
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Reimplemented from dirac::ParseUnitByteIO.
References dirac::PU_SEQ_HEADER.
| bool dirac::SequenceHeaderByteIO::Input | ( | ) |
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| void dirac::SequenceHeaderByteIO::Output | ( | ) |
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© 2004 British Broadcasting Corporation.
Dirac code licensed under the Mozilla Public License (MPL) Version 1.1.
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