A class specially for coding the DC subband of Intra frames. More...
#include <band_vlc.h>
Inheritance diagram for dirac::IntraDCBandVLC:
Collaboration diagram for dirac::IntraDCBandVLC:
Public Member Functions | |
| IntraDCBandVLC (SubbandByteIO *subband_byteio, const SubbandList &band_list) | |
| Constructor. More... | |
 Public Member Functions inherited from dirac::GenericIntraDCBandCodec< ArithCodecToVLCAdapter > | |
| GenericIntraDCBandCodec (SubbandByteIO *subband_byteio, size_t number_of_contexts, const SubbandList &band_list) | |
| Constructor. More... | |
| Public Member Functions inherited from dirac::GenericBandCodec< ArithCodecToVLCAdapter > | |
| GenericBandCodec (SubbandByteIO *subband_byteio, size_t number_of_contexts, const SubbandList &band_list, int band_num, const bool is_intra) | |
| Constructor. More... | |
| Public Member Functions inherited from dirac::ArithCodecToVLCAdapter | |
| ArithCodecToVLCAdapter (SubbandByteIO *subband_byteio, size_t number_of_contexts) | |
| virtual | ~ArithCodecToVLCAdapter () |
| int | Compress (CoeffArray &in_data) |
| void | Decompress (CoeffArray &out_data, int num_bytes) |
| void | EncodeSymbol (bool val, int) |
| bool | DecodeSymbol (int) |
Private Member Functions | |
| void | CodeCoeff (CoeffArray &in_data, const int xpos, const int ypos) |
| Encode a single coefficient using error-feedback DC quantization. More... | |
| IntraDCBandVLC (const IntraDCBandVLC &cpy) | |
| Private, bodyless copy constructor: class should not be copied. More... | |
| IntraDCBandVLC & | operator= (const IntraDCBandVLC &rhs) |
| Private, bodyless copy operator=: class should not be assigned. More... | |
Additional Inherited Members | |
| Protected Member Functions inherited from dirac::GenericIntraDCBandCodec< ArithCodecToVLCAdapter > | |
| void | ClearBlock (const CodeBlock &code_block, CoeffArray &coeff_data) |
| When coding a skipped block, propegate the predicted values for future non skipped blocks. More... | |
| CoeffType | GetPrediction (const CoeffArray &data, const int xpos, const int ypos) const |
| Prediction of a DC value from its previously coded neighbours. More... | |
| void | DecodeCoeffBlock (const CodeBlock &code_block, CoeffArray &out_data) |
| Decode codeblock of coefficients and perform DC prediction. More... | |
| Protected Member Functions inherited from dirac::GenericBandCodec< ArithCodecToVLCAdapter > | |
| void | CodeVal (CoeffArray &in_data, const int xpos, const int ypos, const CoeffType val) |
| Code an individual quantised value and perform inverse-quantisation. More... | |
| void | DecodeVal (CoeffArray &out_data, const int xpos, const int ypos) |
| Decode an individual quantised value and perform inverse-quantisation. More... | |
| void | CodeQuantIndexOffset (const int offset) |
| Encode the offset for a code block quantiser. More... | |
| int | DecodeQuantIndexOffset () |
| Decode the offset for a code block quantiser. More... | |
| void | SetToVal (const CodeBlock &code_block, CoeffArray &coeff_data, const CoeffType val) |
| Set a code block area to a given value. More... | |
| virtual void | DoWorkCode (CoeffArray &in_data) |
| virtual void | DoWorkDecode (CoeffArray &out_data) |
| virtual void | CodeCoeffBlock (const CodeBlock &code_block, CoeffArray &in_data) |
| virtual void | DecodeCoeff (CoeffArray &in_data, const int xpos, const int ypos) |
| int | ChooseFollowContext (const int bin_number) const |
| A function for choosing the context for "follow bits". More... | |
| int | ChooseInfoContext () const |
| A function for choosing the context for "information bits". More... | |
| int | ChooseSignContext (const CoeffArray &data, const int xpos, const int ypos) const |
| A function for choosing the context for sign bits. More... | |
| Protected Attributes inherited from dirac::GenericBandCodec< ArithCodecToVLCAdapter > | |
| bool | m_is_intra |
| Flag indicating whether the band comes from an intra picture. More... | |
| int | m_bnum |
| variables More... | |
| const Subband | m_node |
| the subband being coded More... | |
| int | m_last_qf_idx |
| the quantisation index of the last codeblock More... | |
| int | m_qf |
| quantisation value More... | |
| CoeffType | m_offset |
| reconstruction point More... | |
| bool | m_nhood_nonzero |
| True if neighbours non-zero. More... | |
| Subband | m_pnode |
| the parent subband More... | |
| int | m_pxpos |
| position of the parent coefficient More... | |
| int | m_pypos |
| bool | m_parent_notzero |
| True if the parent of a coeff is not zero. More... | |
| Protected Attributes inherited from dirac::ArithCodecToVLCAdapter | |
| ByteIO * | m_byteio |
Detailed Description
A class specially for coding the DC subband of Intra frames, using intra-band prediction of coefficients.
Constructor & Destructor Documentation
| dirac::IntraDCBandVLC::IntraDCBandVLC | ( | SubbandByteIO * | subband_byteio, |
| const SubbandList & | band_list | ||
| ) |
Creates a IntraDCBandVLC object to encode subband data, based on parameters
- Parameters
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subband_byteio input/output for the encoded bits band_list the set of all the subbands
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private |
Member Function Documentation
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privatevirtual |
Reimplemented from dirac::GenericBandCodec< ArithCodecToVLCAdapter >.
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private |
The documentation for this class was generated from the following file: