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subband_layer_2.hh
Package: dvd-munitions.tar.gz [view]
Upload User: aoeyumen
Upload Date: 2007-01-06
Package Size: 3329k
Code Size: 2k
Category:
DVD
Development Platform:
Unix_Linux
- #ifndef SUBBAND_LAYER_2_H
- #define SUBBAND_LAYER_2_H
- // class for layer II subbands in single channel mode:
- class SubbandLayer2 : public Subband {
- protected:
- uint32 subbandnumber;
- uint32 allocation;
- uint32 scfsi;
- uint32 scalefactor1, scalefactor2, scalefactor3;
- bool grouping;
- uint32 codelength;
- uint32 quantizationsteps;
- real factor;
- uint32 groupnumber;
- uint32 samplenumber;
- real samples[3];
- real c, d;
- uint32 get_allocationlength (Header *);
- uint32 prepare_sample_reading (Header *, uint32, bool *, uint32 *, real *,
- uint32 *, real *, real *);
- public:
- SubbandLayer2 (uint32 subbandnumber);
- void read_allocation (AudioStream *, Header *, Crc16 *);
- virtual void read_scalefactor_selection (AudioStream *, Crc16 *);
- void read_scalefactor (AudioStream *, Header *);
- bool read_sampledata (AudioStream *);
- bool put_next_sample (e_channels, SynthesisFilter *, SynthesisFilter * = NULL);
- };
- // class for layer II subbands in joint stereo mode:
- class SubbandLayer2IntensityStereo : public SubbandLayer2 {
- protected:
- uint32 channel2_scfsi;
- uint32 channel2_scalefactor1, channel2_scalefactor2, channel2_scalefactor3;
- public:
- SubbandLayer2IntensityStereo (uint32 subbandnumber);
- void read_allocation (AudioStream *stream, Header *header, Crc16 *crc){
- SubbandLayer2::read_allocation (stream, header, crc);
- }
- void read_scalefactor_selection (AudioStream *, Crc16 *);
- void read_scalefactor (AudioStream *, Header *);
- bool read_sampledata (AudioStream *stream){
- return SubbandLayer2::read_sampledata (stream);
- }
- bool put_next_sample (e_channels, SynthesisFilter *, SynthesisFilter *);
- };
- // class for layer II subbands in stereo mode:
- class SubbandLayer2Stereo : public SubbandLayer2 {
- protected:
- uint32 channel2_allocation;
- uint32 channel2_scfsi;
- uint32 channel2_scalefactor1, channel2_scalefactor2, channel2_scalefactor3;
- bool channel2_grouping;
- uint32 channel2_codelength;
- uint32 channel2_quantizationsteps;
- real channel2_factor;
- real channel2_samples[3];
- real channel2_c, channel2_d;
- public:
- SubbandLayer2Stereo (uint32 subbandnumber);
- void read_allocation (AudioStream *, Header *, Crc16 *);
- void read_scalefactor_selection (AudioStream *, Crc16 *);
- void read_scalefactor (AudioStream *, Header *);
- bool read_sampledata (AudioStream *);
- bool put_next_sample (e_channels, SynthesisFilter *, SynthesisFilter *);
- };
- #endif