41 #ifndef _BAND_CODEC_H_ 42 #define _BAND_CODEC_H_ 57 template<
typename EntropyCodec>
72 size_t number_of_contexts,
170 template<
typename EntropyCodec>
182 size_t number_of_contexts,
185 band_list, band_list.Length(),
217 size_t number_of_contexts,
IntraDCBandCodec(SubbandByteIO *subband_byteio, size_t number_of_contexts, const SubbandList &band_list)
Constructor.
Definition: band_codec.h:216
Class encapsulating all the metadata relating to a wavelet subband.
Definition: wavelet_utils.h:139
BandCodec LFBandCodec
Definition: band_codec.h:163
GenericBandCodec< ArithCodec< CoeffArray > > BandCodec
A general class for coding and decoding wavelet subband data.
Definition: band_codec.h:162
CoeffType m_offset
reconstruction point
Definition: band_codec.h:142
int CoeffType
Type of wavelet coefficient data (should be larger than ValueType)
Definition: common.h:74
bool m_parent_notzero
True if the parent of a coeff is not zero.
Definition: band_codec.h:154
Abstract binary arithmetic coding class.
Definition: arith_codec.h:374
void SetToVal(const CodeBlock &code_block, CoeffArray &coeff_data, const CoeffType val)
Set a code block area to a given value.
Definition: band_codec_template.h:476
Subband m_pnode
the parent subband
Definition: band_codec.h:148
int ChooseSignContext(const CoeffArray &data, const int xpos, const int ypos) const
A function for choosing the context for sign bits.
Definition: band_codec_template.h:419
A class for wavelet coefficient data.
Definition: wavelet_utils.h:622
int m_pxpos
position of the parent coefficient
Definition: band_codec.h:151
virtual void ClearBlock(const CodeBlock &code_block, CoeffArray &coeff_data)
Set all block values to 0.
Definition: band_codec_template.h:488
bool m_nhood_nonzero
True if neighbours non-zero.
Definition: band_codec.h:145
int ChooseInfoContext() const
A function for choosing the context for "information bits".
Definition: band_codec_template.h:413
A class encapulating all the subbands produced by a transform.
Definition: wavelet_utils.h:279
void CodeVal(CoeffArray &in_data, const int xpos, const int ypos, const CoeffType val)
Code an individual quantised value and perform inverse-quantisation.
Definition: band_codec_template.h:131
bool m_is_intra
Flag indicating whether the band comes from an intra picture.
Definition: band_codec.h:127
GenericBandCodec(SubbandByteIO *subband_byteio, size_t number_of_contexts, const SubbandList &band_list, int band_num, const bool is_intra)
Constructor.
Definition: band_codec_template.h:9
int m_bnum
variables
Definition: band_codec.h:130
void CodeQuantIndexOffset(const int offset)
Encode the offset for a code block quantiser.
Definition: band_codec_template.h:176
GenericBandCodec & operator=(const GenericBandCodec &rhs)
Private, bodyless copy operator=: class should not be assigned.
virtual void DecodeCoeff(CoeffArray &in_data, const int xpos, const int ypos)
Definition: band_codec_template.h:306
CoeffArray m_dc_pred_res
Definition: band_codec.h:244
virtual void CodeCoeff(CoeffArray &in_data, const int xpos, const int ypos)
Definition: band_codec_template.h:106
Class for encapsulating metadata concerning a block of coefficients in a subband. ...
Definition: wavelet_utils.h:59
A class specially for coding the DC subband of Intra frames.
Definition: band_codec.h:206
void DecodeVal(CoeffArray &out_data, const int xpos, const int ypos)
Decode an individual quantised value and perform inverse-quantisation.
Definition: band_codec_template.h:330
virtual void CodeCoeffBlock(const CodeBlock &code_block, CoeffArray &in_data)
Definition: band_codec_template.h:53
int m_qf
quantisation value
Definition: band_codec.h:139
int ChooseFollowContext(const int bin_number) const
A function for choosing the context for "follow bits".
Definition: band_codec_template.h:358
int m_last_qf_idx
the quantisation index of the last codeblock
Definition: band_codec.h:136
Subband Dirac-bytestream input/output.
Definition: subband_byteio.h:56
const Subband m_node
the subband being coded
Definition: band_codec.h:133
A template class specially for coding the DC subband of Intra frames.
Definition: band_codec.h:171
Definition of class SequenceHeaderByteIO.
Definition: accessunit_byteio.h:51
int DecodeQuantIndexOffset()
Decode the offset for a code block quantiser.
Definition: band_codec_template.h:456
int m_pypos
Definition: band_codec.h:151
GenericIntraDCBandCodec(SubbandByteIO *subband_byteio, size_t number_of_contexts, const SubbandList &band_list)
Constructor.
Definition: band_codec.h:181
virtual void DoWorkCode(CoeffArray &in_data)
Definition: band_codec_template.h:27
A template class for coding and decoding wavelet subband data.
Definition: band_codec.h:58
virtual void DoWorkDecode(CoeffArray &out_data)
Definition: band_codec_template.h:205
virtual void DecodeCoeffBlock(const CodeBlock &code_block, CoeffArray &out_data)
Definition: band_codec_template.h:231