1 /* |
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2 * Copyright (c) 2010 Ixonos Plc. |
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3 * All rights reserved. |
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4 * This component and the accompanying materials are made available |
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5 * under the terms of the "Eclipse Public License v1.0" |
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6 * which accompanies this distribution, and is available |
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7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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8 * |
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9 * Initial Contributors: |
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10 * Nokia Corporation - Initial contribution |
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11 * |
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12 * Contributors: |
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13 * Ixonos Plc |
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14 * |
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15 * Description: |
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16 * Header for the aic (Advanced Intra Coding) module. |
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17 * |
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18 */ |
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19 |
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20 |
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21 |
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22 #ifndef _VDCAIC_H_ |
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23 #define _VDCAIC_H_ |
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24 |
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25 #include "epoclib.h" |
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26 |
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27 /* |
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28 * Structs and typedefs |
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29 */ |
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30 |
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31 typedef struct { |
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32 |
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33 int16 *qpStore; /* storage place for the QP values of MBs in the |
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34 previous and current MB line */ |
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35 |
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36 int ***dcStore; /* storage place for the DC and first horizontal |
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37 and vertical line of AC coefficients of the |
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38 4+1+1 blocks of the MBs in the previous and |
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39 current MB line */ |
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40 |
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41 int numMBsInMBLine; /* number of MBs in a MB line for the calculation |
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42 of the internal sorage index from currMBNum */ |
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43 |
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44 int Xpos[6]; /* indexed by block number (0..5) of an MB gives |
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45 relative MB index of left neighbor block */ |
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46 |
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47 int Ypos[6]; /* indexed by block number (0..5) of an MB gives |
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48 relative MB index of top neighbor block */ |
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49 |
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50 int Xtab[6]; /* indexed by block number (0..5) of an MB gives |
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51 block number of left neighbor block */ |
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52 |
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53 int Ytab[6]; /* indexed by block number (0..5) of an MB gives |
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54 block number of top neighbor block */ |
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55 |
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56 int Ztab[6]; /* indexed by block number (0..5) of an MB gives |
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57 block number of top-left neighbor block */ |
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58 |
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59 u_char ACpred_flag; /* ON(1): AC prediction is used, OFF(0): only DC */ |
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60 |
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61 int midGrey; /* the grey value used for prediction direction |
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62 decision if prediction block is not available */ |
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63 } aicData_t; |
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64 |
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65 |
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66 /* |
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67 * Prototypes |
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68 */ |
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69 |
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70 void aicStart (aicData_t *aicData, int numMBsInMBLine, int16 *error); |
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71 |
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72 void aicFree (aicData_t *aicData); |
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73 |
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74 void aicBlockUpdate (aicData_t *aicData, int currMBNum, int blockNum, int *block, |
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75 int pquant, int DC_coeff); |
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76 |
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77 int aicIsBlockValid (aicData_t *aicData, int currMBNum); |
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78 |
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79 void aicDCACrecon (aicData_t *aicData, int QP, u_char fTopMBMissing, u_char fLeftMBMissing, |
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80 u_char fBBlockOut, int blockNum, int *qBlock, int currMBNum); |
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81 |
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82 int aicDCScaler (int QP, int type); |
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83 |
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84 u_char aicIntraDCSwitch (int intraDCVLCThr, int QP); |
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85 |
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86 #endif |
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87 // End of File |
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