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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 * |
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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 tool2.h - Interface to AAC decoding functions. |
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22 |
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23 Author(s): Juha Ojanpera |
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24 Copyright (c) 2003-2004 by Nokia Research Center, Speech and Audio Systems. |
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25 *************************************************************************/ |
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26 |
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27 #ifndef AAC_FUNC_H_ |
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28 #define AAC_FUNC_H_ |
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29 |
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30 /*-- Project Headers. --*/ |
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31 #include "aacaud.h" |
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32 #include "tool.h" |
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33 |
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34 /* |
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35 * Sfb initialization. |
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36 */ |
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37 void |
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38 AACSfbInfoInit(CSfb_Info *sfb, uint8 sIndex, uint8 is960); |
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39 |
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40 int32 |
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41 AACSampleRate(uint8 sampleRateIdx); |
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42 |
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43 |
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44 /* |
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45 * Control of channel configuration. |
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46 */ |
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47 int16 |
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48 CCChIndex(CMC_Info *mip, int16 cpe, int16 tag); |
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49 |
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50 int16 |
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51 ChIndex(int16 nch, int16 tag, int16 wnd, CMC_Info *mip); |
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52 |
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53 |
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54 /* |
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55 * AAC syntactic channel elements. |
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56 */ |
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57 int16 |
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58 GetSCE(CAACAudDec *aac, TBitStream *bs, CMC_Info *mip, uint8 *gains, |
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59 uint32 *gainPos, uint32 bufBitOffset); |
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60 |
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61 int16 |
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62 GetCPE(CAACAudDec *aac, TBitStream *bs, CMC_Info *mip, uint8 *gains, |
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63 uint32 *gainPos, uint32 bufBitOffset); |
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64 |
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65 int16 |
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66 GetCCE(CAACAudDec *aac, TBitStream *bs, CMC_Info *mip, CCInfo **ccInfo); |
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67 |
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68 int16 |
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69 GetICS(TBitStream *bs, TCh_Info *cip, uint8 *group, uint8 max_sfb, |
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70 uint8 *cb_map, int16 *quant, int16 global_gain, |
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71 int16 *factors); |
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72 |
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73 int16 |
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74 GetICSInfo(TBitStream *bs, CWindowInfo *winInfo, CLTP_Info *ltp_left, CLTP_Info *ltp_right); |
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75 |
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76 |
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77 /* |
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78 * Huffman decoding interfaces. |
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79 */ |
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80 uint32 |
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81 GetHcb(Huffman_DecSfInfo *huf_info, TBitStream *bs); |
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82 |
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83 int16 |
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84 huf_sfac(TBitStream *bs, TCh_Info *cip, uint8 *group, uint8 *cb_map, |
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85 int16 global_gain, int16 *factors, uint8 max_sfb); |
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86 |
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87 int16 |
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88 huf_spec(TBitStream *bs, CInfo *info, int16 nsect, uint8 *sect, |
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89 int16 *quant, Huffman_DecInfo **huf, uint8 parseOnly); |
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90 |
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91 |
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92 /* |
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93 * Global gain element extraction and storage. |
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94 */ |
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95 int16 |
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96 GetSCEGain(CAACAudDec *aac, TBitStream *bs, uint8 *gains, |
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97 uint32 *gainPos, uint32 bufBitOffset); |
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98 |
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99 int16 |
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100 GetCPEGain(CAACAudDec *aac, TBitStream *bs, uint8 *gains, |
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101 uint32 *gainPos, uint32 bufBitOffset); |
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102 |
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103 #endif /*-- AAC_FUNC_H_ --*/ |