sp_enc.h
上传用户:dangjiwu
上传日期:2013-07-19
资源大小:42019k
文件大小:1k
- /*
- * ===================================================================
- * TS 26.104
- * R99 V3.4.0 2002-02
- * REL-4 V4.3.0 2002-02
- * 3GPP AMR Floating-point Speech Codec
- * ===================================================================
- *
- */
- /*
- * sp_enc.h
- *
- *
- * Project:
- * AMR Floating-Point Codec
- *
- * Contains:
- * Defines interface to AMR encoder
- *
- */
- #ifndef _SP_ENC_H
- #define _SP_ENC_H
- /*
- * include files
- */
- #include "typedef.h"
- /*
- * definition of modes for encoder
- */
- enum Mode { MR475 = 0,
- MR515,
- MR59,
- MR67,
- MR74,
- MR795,
- MR102,
- MR122,
- MRDTX
- };
- /*
- * Function prototypes
- */
- /*
- * initialize one instance of the speech encoder
- * Stores pointer to filter status struct in *st. This pointer has to
- * be passed to Speech_Encode_Frame in each call.
- * returns 0 on success
- */
- void *Speech_Encode_Frame_init (int dtx);
- /*
- * reset speech encoder (i.e. set state memory to zero)
- * returns 0 on success
- */
- int Speech_Encode_Frame_reset(void *st, int dtx);
- /*
- * de-initialize speech encoder (i.e. free status struct)
- * stores NULL in *st
- */
- void Speech_Encode_Frame_exit (void **st);
- /*
- * Encodes one speech frame
- * Returns analysis parameters
- */
- void Speech_Encode_Frame (void *st, enum Mode mode, short *newSpeech,
- short *prm, enum Mode *usedMode);
- #endif