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