sp_enc.h

Trolltech公司发布的图形界面操作系统。可在qt-embedded-2.3.10平台上编译为嵌入式图形界面操作系统。

/**********************************************************************
** Copyright (C) 2000-2005 Trolltech AS and its licensors.
** All rights reserved.
**
** This file is part of the Qtopia Environment.
**
** This file may be distributed and/or modified under the terms of the
** GNU General Public License version 2 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file.
**
** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
**
** See http://www.trolltech.com/gpl/ for GPL licensing information.
** See below for additional copyright and license information
**
** Contact [e-mail] if any conditions of this licensing are
** not clear to you.
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**********************************************************************/
/*
*****************************************************************************
*
*      GSM AMR-NB speech codec   R98   Version 7.6.0   December 12, 2001
*                                R99   Version 3.3.0                
*                                REL-4 Version 4.1.0                
*
*****************************************************************************
*
*      File             : sp_enc.h
*      Purpose          : Encoding of one speech frame.
*
*****************************************************************************
*/
#ifndef sp_enc_h
#define sp_enc_h "$Id $"
 
/*
*****************************************************************************
*                         INCLUDE FILES
*****************************************************************************
*/
#include "typedef.h"
#include "cnst.h"
#include "pre_proc.h"
#include "mode.h"
#include "cod_amr.h"

/*
*****************************************************************************
*                         DEFINITION OF DATA TYPES
*****************************************************************************
*/
typedef struct{
    Pre_ProcessState *pre_state;
    cod_amrState   *cod_amr_state;
    Flag dtx;
    int complexityCounter;   /* Only for complexity computation            */
} Speech_Encode_FrameState;
 
/*
*****************************************************************************
*                         ENCLARATION OF PROTOTYPES
*****************************************************************************
*/
 
int Speech_Encode_Frame_init (Speech_Encode_FrameState **st,
                              Flag dtx,
                              char *id);
/* 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
 */
 
int Speech_Encode_Frame_reset (Speech_Encode_FrameState *st);
/* reset speech encoder (i.e. set state memory to zero)
   returns 0 on success
 */
 
void Speech_Encode_Frame_exit (Speech_Encode_FrameState **st);
/* de-initialize speech encoder (i.e. free status struct)
   stores NULL in *s
 */
 
int Speech_Encode_Frame_First (
    Speech_Encode_FrameState *st, /* i/o : post filter states     */
    Word16 *new_speech);          /* i   : speech input           */

int Speech_Encode_Frame (
    Speech_Encode_FrameState *st, /* i/o : encoder states         */
    enum Mode mode,               /* i   : speech coder mode      */
    Word16 *new_speech,           /* i   : input speech           */
    Word16 *serial,               /* o   : serial bit stream      */
    enum Mode *usedMode           /* o   : used speech coder mode */
);
/*    return 0 on success
 */

#ifdef MMS_IO

Word16 PackBits(
    enum Mode used_mode,       /* i : actual AMR mode             */
    enum Mode mode,            /* i : requested AMR (speech) mode */
    enum TXFrameType fr_type,  /* i : frame type                  */
    Word16 bits[],             /* i : serial bits                 */
    UWord8 packed_bits[]       /* o : sorted&packed bits          */
);

#endif
 
#endif