chromium/third_party/opus/src/silk/enc_API.c

/***********************************************************************
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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***********************************************************************/

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "define.h"
#include "API.h"
#include "control.h"
#include "typedef.h"
#include "stack_alloc.h"
#include "structs.h"
#include "tuning_parameters.h"
#ifdef FIXED_POINT
#include "main_FIX.h"
#else
#include "main_FLP.h"
#endif

/***************************************/
/* Read control structure from encoder */
/***************************************/
static opus_int silk_QueryEncoder(                      /* O    Returns error code                              */
    const void                      *encState,          /* I    State                                           */
    silk_EncControlStruct           *encStatus          /* O    Encoder Status                                  */
);

/****************************************/
/* Encoder functions                    */
/****************************************/

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                                  */
)
{ … }

/***************************************/
/* Read control structure from encoder */
/***************************************/
static opus_int silk_QueryEncoder(                      /* O    Returns error code                              */
    const void                      *encState,          /* I    State                                           */
    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   */
    opus_int                        activity            /* I    Decision of Opus voice activity detector        */
)
{ … }