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