aacenc_core.h revision 41050cdb033641ddf26831d9272c0930f7b40a2d 
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:		aacenc_core.h
18
19	Content:	aac encoder interface functions
20
21*******************************************************************************/
22
23#ifndef _aacenc_core_h_
24#define _aacenc_core_h_
25
26
27#include "typedef.h"
28#include "config.h"
29#include "bitenc.h"
30
31#include "psy_configuration.h"
32#include "psy_main.h"
33#include "qc_main.h"
34#include "psy_main.h"
35/*-------------------------- defines --------------------------------------*/
36
37
38/*-------------------- structure definitions ------------------------------*/
39typedef  struct {
40  Word32   sampleRate;            /* audio file sample rate */
41  Word32   bitRate;               /* encoder bit rate in bits/sec */
42  Word16   nChannelsIn;           /* number of channels on input (1,2) */
43  Word16   nChannelsOut;          /* number of channels on output (1,2) */
44  Word16   bandWidth;             /* targeted audio bandwidth in Hz */
45  Word16   adtsUsed;			  /* whether write adts header */
46} AACENC_CONFIG;
47
48
49typedef struct {
50
51  AACENC_CONFIG config;     /* Word16 size: 8 */
52
53  ELEMENT_INFO elInfo;      /* Word16 size: 4 */
54
55  QC_STATE qcKernel;        /* Word16 size: 6 + 5(PADDING) + 7(ELEMENT_BITS) + 54(ADJ_THR_STATE) = 72 */
56  QC_OUT   qcOut;           /* Word16 size: MAX_CHANNELS*920(QC_OUT_CHANNEL) + 5(QC_OUT_ELEMENT) + 7 = 932 / 1852 */
57
58  PSY_OUT    psyOut;        /* Word16 size: MAX_CHANNELS*186 + 2 = 188 / 374 */
59  PSY_KERNEL psyKernel;     /* Word16 size:  2587 / 4491 */
60
61  struct BITSTREAMENCODER_INIT bseInit; /* Word16 size: 6 */
62  struct BIT_BUF  bitStream;            /* Word16 size: 8 */
63  HANDLE_BIT_BUF  hBitStream;
64  int			  initOK;
65
66  short			*intbuf;
67  short			*encbuf;
68  short			*inbuf;
69  int			enclen;
70  int			inlen;
71  int			intlen;
72  int			uselength;
73
74  void			*hCheck;
75  VO_MEM_OPERATOR *voMemop;
76  VO_MEM_OPERATOR voMemoprator;
77
78}AAC_ENCODER; /* Word16 size: 3809 / 6851 */
79
80/*-----------------------------------------------------------------------------
81
82functionname: AacInitDefaultConfig
83description:  gives reasonable default configuration
84returns:      ---
85
86------------------------------------------------------------------------------*/
87void AacInitDefaultConfig(AACENC_CONFIG *config);
88
89/*---------------------------------------------------------------------------
90
91functionname:AacEncOpen
92description: allocate and initialize a new encoder instance
93returns:     AACENC_OK if success
94
95---------------------------------------------------------------------------*/
96
97Word16  AacEncOpen (AAC_ENCODER				*hAacEnc,       /* pointer to an encoder handle, initialized on return */
98                    const  AACENC_CONFIG     config);        /* pre-initialized config struct */
99
100Word16 AacEncEncode(AAC_ENCODER		   *hAacEnc,
101                    Word16             *timeSignal,
102                    const UWord8       *ancBytes,      /*!< pointer to ancillary data bytes */
103                    Word16             *numAncBytes,   /*!< number of ancillary Data Bytes, send as fill element  */
104                    UWord8             *outBytes,      /*!< pointer to output buffer            */
105                    Word32             *numOutBytes    /*!< number of bytes in output buffer */
106                    );
107
108/*---------------------------------------------------------------------------
109
110functionname:AacEncClose
111description: deallocate an encoder instance
112
113---------------------------------------------------------------------------*/
114
115void AacEncClose (AAC_ENCODER* hAacEnc, VO_MEM_OPERATOR *pMemOP); /* an encoder handle */
116
117#endif /* _aacenc_h_ */
118