153 lines
7.8 KiB
C
153 lines
7.8 KiB
C
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/***********************************************************************
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Copyright (c) 2006-2012, 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, (subject to the limitations in the disclaimer below)
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are permitted provided that the following conditions 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 Skype Limited, nor the names of specific
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contributors, may be used to endorse or promote products derived from
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this software without specific prior written permission.
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NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
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BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
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CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
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BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
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FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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***********************************************************************/
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#ifndef SKP_SILK_SDK_API_H
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#define SKP_SILK_SDK_API_H
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#include "SKP_Silk_control.h"
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#include "SKP_Silk_typedef.h"
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#include "SKP_Silk_errors.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 5
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/* Struct for TOC (Table of Contents) */
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typedef struct {
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SKP_int framesInPacket; /* Number of 20 ms frames in packet */
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SKP_int fs_kHz; /* Sampling frequency in packet */
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SKP_int inbandLBRR; /* Does packet contain LBRR information */
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SKP_int corrupt; /* Packet is corrupt */
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SKP_int vadFlags[ SILK_MAX_FRAMES_PER_PACKET ]; /* VAD flag for each frame in packet */
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SKP_int sigtypeFlags[ SILK_MAX_FRAMES_PER_PACKET ]; /* Signal type for each frame in packet */
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} SKP_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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SKP_int SKP_Silk_SDK_Get_Encoder_Size(
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SKP_int32 *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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SKP_int SKP_Silk_SDK_InitEncoder(
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void *encState, /* I/O: State */
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SKP_SILK_SDK_EncControlStruct *encStatus /* O: Encoder Status */
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);
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/***************************************/
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/* Read control structure from encoder */
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/***************************************/
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SKP_int SKP_Silk_SDK_QueryEncoder(
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const void *encState, /* I: State */
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SKP_SILK_SDK_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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SKP_int SKP_Silk_SDK_Encode(
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void *encState, /* I/O: State */
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const SKP_SILK_SDK_EncControlStruct *encControl, /* I: Control status */
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const SKP_int16 *samplesIn, /* I: Speech sample input vector */
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SKP_int nSamplesIn, /* I: Number of samples in input vector */
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SKP_uint8 *outData, /* O: Encoded output vector */
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SKP_int16 *nBytesOut /* I/O: Number of bytes in outData (input: Max bytes) */
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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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SKP_int SKP_Silk_SDK_Get_Decoder_Size(
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SKP_int32 *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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SKP_int SKP_Silk_SDK_InitDecoder(
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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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SKP_int SKP_Silk_SDK_Decode(
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void* decState, /* I/O: State */
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SKP_SILK_SDK_DecControlStruct* decControl, /* I/O: Control Structure */
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SKP_int lostFlag, /* I: 0: no loss, 1 loss */
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const SKP_uint8 *inData, /* I: Encoded input vector */
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const SKP_int nBytesIn, /* I: Number of input bytes */
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SKP_int16 *samplesOut, /* O: Decoded output speech vector */
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SKP_int16 *nSamplesOut /* I/O: Number of samples (vector/decoded) */
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);
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/***************************************************************/
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/* Find Low Bit Rate Redundancy (LBRR) information in a packet */
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/***************************************************************/
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void SKP_Silk_SDK_search_for_LBRR(
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const SKP_uint8 *inData, /* I: Encoded input vector */
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const SKP_int nBytesIn, /* I: Number of input Bytes */
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SKP_int lost_offset, /* I: Offset from lost packet */
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SKP_uint8 *LBRRData, /* O: LBRR payload */
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SKP_int16 *nLBRRBytes /* O: Number of LBRR Bytes */
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);
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/**************************************/
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/* Get table of contents for a packet */
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/**************************************/
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void SKP_Silk_SDK_get_TOC(
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const SKP_uint8 *inData, /* I: Encoded input vector */
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const SKP_int nBytesIn, /* I: Number of input bytes */
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SKP_Silk_TOC_struct *Silk_TOC /* O: Table of contents */
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);
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/**************************/
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/* Get the version number */
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/**************************/
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/* Return a pointer to string specifying the version */
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const char *SKP_Silk_SDK_get_version();
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#ifdef __cplusplus
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}
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#endif
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#endif
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