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 ------------------------------*/ 39 typedef 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 49 typedef 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 82 functionname: AacInitDefaultConfig 83 description: gives reasonable default configuration 84 returns: --- 85 86 ------------------------------------------------------------------------------*/ 87 void AacInitDefaultConfig(AACENC_CONFIG *config); 88 89 /*--------------------------------------------------------------------------- 90 91 functionname:AacEncOpen 92 description: allocate and initialize a new encoder instance 93 returns: AACENC_OK if success 94 95 ---------------------------------------------------------------------------*/ 96 97 Word16 AacEncOpen (AAC_ENCODER *hAacEnc, /* pointer to an encoder handle, initialized on return */ 98 const AACENC_CONFIG config); /* pre-initialized config struct */ 99 100 Word16 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 VO_U32 *numOutBytes /*!< number of bytes in output buffer */ 106 ); 107 108 /*--------------------------------------------------------------------------- 109 110 functionname:AacEncClose 111 description: deallocate an encoder instance 112 113 ---------------------------------------------------------------------------*/ 114 115 void AacEncClose (AAC_ENCODER* hAacEnc, VO_MEM_OPERATOR *pMemOP); /* an encoder handle */ 116 117 #endif /* _aacenc_h_ */ 118