aacdec.h 文件参考

浏览源代码.

结构体
struct	_AACFrameInfo

宏定义
#define	AAC_MAX_NCHANS   2 /* set to default max number of channels */
#define	AAC_MAX_NSAMPS   1024
#define	AAC_MAINBUF_SIZE   (768 * AAC_MAX_NCHANS)
#define	AAC_NUM_PROFILES   3
#define	AAC_PROFILE_MP   0
#define	AAC_PROFILE_LC   1
#define	AAC_PROFILE_SSR   2
#define	AAC_ENABLE_MPEG4

类型定义
typedef struct _AACFrameInfo	AACFrameInfo
typedef void *	HAACDecoder

枚举
enum	{   ERR_AAC_NONE = 0,   ERR_AAC_INDATA_UNDERFLOW = -1,   ERR_AAC_NULL_POINTER = -2,   ERR_AAC_INVALID_ADTS_HEADER = -3,   ERR_AAC_INVALID_ADIF_HEADER = -4,   ERR_AAC_INVALID_FRAME = -5,   ERR_AAC_MPEG4_UNSUPPORTED = -6,   ERR_AAC_CHANNEL_MAP = -7,   ERR_AAC_SYNTAX_ELEMENT = -8,   ERR_AAC_DEQUANT = -9,   ERR_AAC_STEREO_PROCESS = -10,   ERR_AAC_PNS = -11,   ERR_AAC_SHORT_BLOCK_DEINT = -12,   ERR_AAC_TNS = -13,   ERR_AAC_IMDCT = -14,   ERR_AAC_NCHANS_TOO_HIGH = -15,   ERR_AAC_SBR_INIT = -16,   ERR_AAC_SBR_BITSTREAM = -17,   ERR_AAC_SBR_DATA = -18,   ERR_AAC_SBR_PCM_FORMAT = -19,   ERR_AAC_SBR_NCHANS_TOO_HIGH = -20,   ERR_AAC_SBR_SINGLERATE_UNSUPPORTED = -21,   ERR_AAC_RAWBLOCK_PARAMS = -22,   ERR_AAC_UNKNOWN = -9999 }

函数
HAACDecoder	AACInitDecoder (void)
void	AACFreeDecoder (HAACDecoder hAACDecoder)
int	AACClearDecoder (HAACDecoder hAACDecoder)
int	AACDecode (HAACDecoder hAACDecoder, unsigned char **inbuf, int *bytesLeft, short *outbuf)
int	AACFindSyncWord (unsigned char *buf, int nBytes)
void	AACGetLastFrameInfo (HAACDecoder hAACDecoder, AACFrameInfo *aacFrameInfo)
int	AACSetRawBlockParams (HAACDecoder hAACDecoder, int copyLast, AACFrameInfo *aacFrameInfo)
int	AACFlushCodec (HAACDecoder hAACDecoder)

---

结构体说明

_AACFrameInfo

struct _AACFrameInfo

成员变量
int	bitRate
int	bitsPerSample
int	nChans
int	outputSamps
int	pnsUsed
int	profile
int	sampRateCore
int	sampRateOut
int	tnsUsed

宏定义说明

AAC_ENABLE_MPEG4

#define AAC_ENABLE_MPEG4

AAC_MAINBUF_SIZE

#define AAC_MAINBUF_SIZE   (768 * AAC_MAX_NCHANS)

AAC_MAX_NCHANS

#define AAC_MAX_NCHANS   2 /* set to default max number of channels */

AAC_MAX_NSAMPS

#define AAC_MAX_NSAMPS   1024

AAC_NUM_PROFILES

#define AAC_NUM_PROFILES   3

AAC_PROFILE_LC

#define AAC_PROFILE_LC   1

AAC_PROFILE_MP

#define AAC_PROFILE_MP   0

AAC_PROFILE_SSR

#define AAC_PROFILE_SSR   2

类型定义说明

AACFrameInfo

typedef struct _AACFrameInfo AACFrameInfo

HAACDecoder

typedef void* HAACDecoder

枚举类型说明

anonymous enum

anonymous enum

枚举值
ERR_AAC_NONE
ERR_AAC_INDATA_UNDERFLOW
ERR_AAC_NULL_POINTER
ERR_AAC_INVALID_ADTS_HEADER
ERR_AAC_INVALID_ADIF_HEADER
ERR_AAC_INVALID_FRAME
ERR_AAC_MPEG4_UNSUPPORTED
ERR_AAC_CHANNEL_MAP
ERR_AAC_SYNTAX_ELEMENT
ERR_AAC_DEQUANT
ERR_AAC_STEREO_PROCESS
ERR_AAC_PNS
ERR_AAC_SHORT_BLOCK_DEINT
ERR_AAC_TNS
ERR_AAC_IMDCT
ERR_AAC_NCHANS_TOO_HIGH
ERR_AAC_SBR_INIT
ERR_AAC_SBR_BITSTREAM
ERR_AAC_SBR_DATA
ERR_AAC_SBR_PCM_FORMAT
ERR_AAC_SBR_NCHANS_TOO_HIGH
ERR_AAC_SBR_SINGLERATE_UNSUPPORTED
ERR_AAC_RAWBLOCK_PARAMS
ERR_AAC_UNKNOWN

函数说明

AACClearDecoder()

int AACClearDecoder

(

HAACDecoder

hAACDecoder

)

AACDecode()

int AACDecode	(	HAACDecoder	hAACDecoder,
		unsigned char **	inbuf,
		int *	bytesLeft,
		short *	outbuf
	)

AACFindSyncWord()

int AACFindSyncWord	(	unsigned char *	buf,
		int	nBytes
	)

AACFlushCodec()

int AACFlushCodec

(

HAACDecoder

hAACDecoder

)

AACFreeDecoder()

void AACFreeDecoder

(

HAACDecoder

hAACDecoder

)

AACGetLastFrameInfo()

void AACGetLastFrameInfo	(	HAACDecoder	hAACDecoder,
		AACFrameInfo *	aacFrameInfo
	)

AACInitDecoder()

HAACDecoder AACInitDecoder

(

void

)

AACSetRawBlockParams()

int AACSetRawBlockParams	(	HAACDecoder	hAACDecoder,
		int	copyLast,
		AACFrameInfo *	aacFrameInfo
	)