shithub: aacenc

ref: 6a0f3c931e3a04b11086258bb4e58e2c0358727b
dir: /include/faac.h/

View raw version
/*
 * FAAC - Freeware Advanced Audio Coder
 * Copyright (C) 2001 Menno Bakker
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.

 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 * $Id: faac.h,v 1.16 2001/09/07 11:26:04 menno Exp $
 */

#ifndef FAACLIB_H
#define FAACLIB_H

#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */

#ifdef WIN32
  #pragma pack(push, 8)
  #ifndef FAACAPI
    #define FAACAPI __stdcall
  #endif
#else
  #ifndef FAACAPI
    #define FAACAPI
  #endif
#endif

#define FAACENC_VERSION 1.9
#define FAACENC_VERSIONB 1 /* If 1 this version is still in beta */

/* MPEG ID's */
#define MPEG2 1
#define MPEG4 0

/* AAC object types */
#define MAIN 0
#define LOW  1
#define SSR  2
#define LTP  3

typedef struct faacEncConfiguration
{
    /* MPEG version, 2 or 4 */
    unsigned int mpegVersion;

    /* AAC object type */
    unsigned int aacObjectType;

    /* Allow mid/side coding */
    unsigned int allowMidside;

    /* Use one of the channels as LFE channel */
    unsigned int useLfe;

    /* Use Temporal Noise Shaping */
    unsigned int useTns;

    /* bitrate / channel of AAC file */
    unsigned long bitRate;

    /* AAC file frequency bandwidth */
    unsigned int bandWidth;

} faacEncConfiguration, *faacEncConfigurationPtr;

typedef void *faacEncHandle;


int FAACAPI faacEncGetDecoderSpecificInfo(faacEncHandle hEncoder,
                                          unsigned char** ppBuffer,
                                          unsigned long* pSizeOfDecoderSpecificInfo);

faacEncConfigurationPtr FAACAPI faacEncGetCurrentConfiguration(faacEncHandle hEncoder);
int FAACAPI faacEncSetConfiguration (faacEncHandle hEncoder, faacEncConfigurationPtr config);

faacEncHandle FAACAPI faacEncOpen(unsigned long sampleRate,
                                  unsigned int numChannels,
                                  unsigned long *inputSamples,
                                  unsigned long *maxOutputBytes);

int FAACAPI faacEncEncode(faacEncHandle hEncoder,
                          short *inputBuffer,
                          unsigned int samplesInput,
                          void *outputBuffer,
                          unsigned int bufferSize
                          );

int FAACAPI faacEncClose(faacEncHandle hEncoder);


#ifdef WIN32
  #pragma pack(pop)
#endif

#ifdef __cplusplus
}
#endif /* __cplusplus */

#endif /* FAACLIB_H */