135 lines
7 KiB
C
135 lines
7 KiB
C
/***********************************************************************
|
|
Copyright (c) 2006-2011, Skype Limited. All rights reserved.
|
|
Redistribution and use in source and binary forms, with or without
|
|
modification, are permitted provided that the following conditions
|
|
are met:
|
|
- Redistributions of source code must retain the above copyright notice,
|
|
this list of conditions and the following disclaimer.
|
|
- Redistributions in binary form must reproduce the above copyright
|
|
notice, this list of conditions and the following disclaimer in the
|
|
documentation and/or other materials provided with the distribution.
|
|
- Neither the name of Internet Society, IETF or IETF Trust, nor the
|
|
names of specific contributors, may be used to endorse or promote
|
|
products derived from this software without specific prior written
|
|
permission.
|
|
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
|
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
|
|
LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
|
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
|
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
POSSIBILITY OF SUCH DAMAGE.
|
|
***********************************************************************/
|
|
|
|
#ifndef SILK_API_H
|
|
#define SILK_API_H
|
|
|
|
#include "control.h"
|
|
#include "typedef.h"
|
|
#include "errors.h"
|
|
#include "entenc.h"
|
|
#include "entdec.h"
|
|
|
|
#ifdef __cplusplus
|
|
extern "C"
|
|
{
|
|
#endif
|
|
|
|
#define SILK_MAX_FRAMES_PER_PACKET 3
|
|
|
|
/* Struct for TOC (Table of Contents) */
|
|
typedef struct {
|
|
opus_int VADFlag; /* Voice activity for packet */
|
|
opus_int VADFlags[ SILK_MAX_FRAMES_PER_PACKET ]; /* Voice activity for each frame in packet */
|
|
opus_int inbandFECFlag; /* Flag indicating if packet contains in-band FEC */
|
|
} silk_TOC_struct;
|
|
|
|
/****************************************/
|
|
/* Encoder functions */
|
|
/****************************************/
|
|
|
|
/***********************************************/
|
|
/* Get size in bytes of the Silk encoder state */
|
|
/***********************************************/
|
|
opus_int silk_Get_Encoder_Size( /* O Returns error code */
|
|
opus_int *encSizeBytes /* O Number of bytes in SILK encoder state */
|
|
);
|
|
|
|
/*************************/
|
|
/* Init or reset encoder */
|
|
/*************************/
|
|
opus_int silk_InitEncoder( /* O Returns error code */
|
|
void *encState, /* I/O State */
|
|
int arch, /* I Run-time architecture */
|
|
silk_EncControlStruct *encStatus /* O Encoder Status */
|
|
);
|
|
|
|
/**************************/
|
|
/* Encode frame with Silk */
|
|
/**************************/
|
|
/* Note: if prefillFlag is set, the input must contain 10 ms of audio, irrespective of what */
|
|
/* encControl->payloadSize_ms is set to */
|
|
opus_int silk_Encode( /* O Returns error code */
|
|
void *encState, /* I/O State */
|
|
silk_EncControlStruct *encControl, /* I Control status */
|
|
const opus_int16 *samplesIn, /* I Speech sample input vector */
|
|
opus_int nSamplesIn, /* I Number of samples in input vector */
|
|
ec_enc *psRangeEnc, /* I/O Compressor data structure */
|
|
opus_int32 *nBytesOut, /* I/O Number of bytes in payload (input: Max bytes) */
|
|
const opus_int prefillFlag /* I Flag to indicate prefilling buffers no coding */
|
|
);
|
|
|
|
/****************************************/
|
|
/* Decoder functions */
|
|
/****************************************/
|
|
|
|
/***********************************************/
|
|
/* Get size in bytes of the Silk decoder state */
|
|
/***********************************************/
|
|
opus_int silk_Get_Decoder_Size( /* O Returns error code */
|
|
opus_int *decSizeBytes /* O Number of bytes in SILK decoder state */
|
|
);
|
|
|
|
/*************************/
|
|
/* Init or Reset decoder */
|
|
/*************************/
|
|
opus_int silk_InitDecoder( /* O Returns error code */
|
|
void *decState /* I/O State */
|
|
);
|
|
|
|
/******************/
|
|
/* Decode a frame */
|
|
/******************/
|
|
opus_int silk_Decode( /* O Returns error code */
|
|
void* decState, /* I/O State */
|
|
silk_DecControlStruct* decControl, /* I/O Control Structure */
|
|
opus_int lostFlag, /* I 0: no loss, 1 loss, 2 decode fec */
|
|
opus_int newPacketFlag, /* I Indicates first decoder call for this packet */
|
|
ec_dec *psRangeDec, /* I/O Compressor data structure */
|
|
opus_int16 *samplesOut, /* O Decoded output speech vector */
|
|
opus_int32 *nSamplesOut, /* O Number of samples decoded */
|
|
int arch /* I Run-time architecture */
|
|
);
|
|
|
|
#if 0
|
|
/**************************************/
|
|
/* Get table of contents for a packet */
|
|
/**************************************/
|
|
opus_int silk_get_TOC(
|
|
const opus_uint8 *payload, /* I Payload data */
|
|
const opus_int nBytesIn, /* I Number of input bytes */
|
|
const opus_int nFramesPerPayload, /* I Number of SILK frames per payload */
|
|
silk_TOC_struct *Silk_TOC /* O Type of content */
|
|
);
|
|
#endif
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif
|