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      1 /*
      2  ** Copyright 2003-2010, VisualOn, Inc.
      3  **
      4  ** Licensed under the Apache License, Version 2.0 (the "License");
      5  ** you may not use this file except in compliance with the License.
      6  ** You may obtain a copy of the License at
      7  **
      8  **     http://www.apache.org/licenses/LICENSE-2.0
      9  **
     10  ** Unless required by applicable law or agreed to in writing, software
     11  ** distributed under the License is distributed on an "AS IS" BASIS,
     12  ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  ** See the License for the specific language governing permissions and
     14  ** limitations under the License.
     15  */
     16 /*******************************************************************************
     17 	File:		qc_data.h
     18 
     19 	Content:	Quantizing & coding structures
     20 
     21 *******************************************************************************/
     22 
     23 #ifndef _QC_DATA_H
     24 #define _QC_DATA_H
     25 
     26 #include "psy_const.h"
     27 #include "dyn_bits.h"
     28 #include "adj_thr_data.h"
     29 
     30 
     31 #define MAX_MODES 10
     32 
     33 typedef enum {
     34   MODE_INVALID = 0,
     35   MODE_1,        /* mono      */
     36   MODE_1_1,      /* dual mono */
     37   MODE_2         /* stereo    */
     38 } ENCODER_MODE;
     39 
     40 typedef enum {
     41   ID_SCE=0,     /* Single Channel Element   */
     42   ID_CPE=1,     /* Channel Pair Element     */
     43   ID_CCE=2,     /* Coupling Channel Element */
     44   ID_LFE=3,     /* LFE Channel Element      */
     45   ID_DSE=4,     /* current one DSE element for ancillary is supported */
     46   ID_PCE=5,
     47   ID_FIL=6,
     48   ID_END=7
     49 }ELEMENT_TYPE;
     50 
     51 typedef struct {
     52   ELEMENT_TYPE elType;
     53   Word16 instanceTag;
     54   Word16 nChannelsInEl;
     55   Word16 ChannelIndex[MAX_CHANNELS];
     56 } ELEMENT_INFO;
     57 
     58 typedef struct {
     59   Word32 paddingRest;
     60 } PADDING;
     61 
     62 
     63 /* Quantizing & coding stage */
     64 
     65 struct QC_INIT{
     66   ELEMENT_INFO *elInfo;
     67   Word16 maxBits;     /* maximum number of bits in reservoir  */
     68   Word16 averageBits; /* average number of bits we should use */
     69   Word16 bitRes;
     70   Word16 meanPe;
     71   Word32 chBitrate;
     72   Word16 maxBitFac;
     73   Word32 bitrate;
     74 
     75   PADDING padding;
     76 };
     77 
     78 typedef struct
     79 {
     80   Word16          *quantSpec;       /* [FRAME_LEN_LONG];                            */
     81   UWord16         *maxValueInSfb;   /* [MAX_GROUPED_SFB];                           */
     82   Word16          *scf;             /* [MAX_GROUPED_SFB];                           */
     83   Word16          globalGain;
     84   Word16          mdctScale;
     85   Word16          groupingMask;
     86   SECTION_DATA    sectionData;
     87   Word16          windowShape;
     88 } QC_OUT_CHANNEL;
     89 
     90 typedef struct
     91 {
     92   Word16		  adtsUsed;
     93   Word16          staticBitsUsed; /* for verification purposes */
     94   Word16          dynBitsUsed;    /* for verification purposes */
     95   Word16          pe;
     96   Word16          ancBitsUsed;
     97   Word16          fillBits;
     98 } QC_OUT_ELEMENT;
     99 
    100 typedef struct
    101 {
    102   QC_OUT_CHANNEL  qcChannel[MAX_CHANNELS];
    103   QC_OUT_ELEMENT  qcElement;
    104   Word16          totStaticBitsUsed; /* for verification purposes */
    105   Word16          totDynBitsUsed;    /* for verification purposes */
    106   Word16          totAncBitsUsed;    /* for verification purposes */
    107   Word16          totFillBits;
    108   Word16          alignBits;
    109   Word16          bitResTot;
    110   Word16          averageBitsTot;
    111 } QC_OUT;
    112 
    113 typedef struct {
    114   Word32 chBitrate;
    115   Word16 averageBits;               /* brutto -> look ancillary.h */
    116   Word16 maxBits;
    117   Word16 bitResLevel;
    118   Word16 maxBitResBits;
    119   Word16 relativeBits;            /* Bits relative to total Bits scaled down by 2 */
    120 } ELEMENT_BITS;
    121 
    122 typedef struct
    123 {
    124   /* this is basically struct QC_INIT */
    125   Word16 averageBitsTot;
    126   Word16 maxBitsTot;
    127   Word16 globStatBits;
    128   Word16 nChannels;
    129   Word16 bitResTot;
    130 
    131   Word16 maxBitFac;
    132 
    133   PADDING   padding;
    134 
    135   ELEMENT_BITS  elementBits;
    136   ADJ_THR_STATE adjThr;
    137 
    138   Word16 logSfbFormFactor[MAX_CHANNELS][MAX_GROUPED_SFB];
    139   Word16 sfbNRelevantLines[MAX_CHANNELS][MAX_GROUPED_SFB];
    140   Word16 logSfbEnergy[MAX_CHANNELS][MAX_GROUPED_SFB];
    141 } QC_STATE;
    142 
    143 #endif /* _QC_DATA_H */
    144