analysis.h | Explore in Territory

/* Copyright (c) 2011 Xiph.Org Foundation
   Written by Jean-Marc Valin */
/*
   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.

   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 FOUNDATION 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 ANALYSIS_H
#define ANALYSIS_H

#include "celt.h"
#include "opus_private.h"
#include "mlp.h"

#define NB_FRAMES …
#define NB_TBANDS …
#define ANALYSIS_BUF_SIZE …

/* At that point we can stop counting frames because it no longer matters. */
#define ANALYSIS_COUNT_MAX …

#define DETECT_SIZE …

/* Uncomment this to print the MLP features on stdout. */
/*#define MLP_TRAINING*/

TonalityAnalysisState;

/** Initialize a TonalityAnalysisState struct.
 *
 * This performs some possibly slow initialization steps which should
 * not be repeated every analysis step. No allocated memory is retained
 * by the state struct, so no cleanup call is required.
 */
void tonality_analysis_init(TonalityAnalysisState *analysis, opus_int32 Fs);

/** Reset a TonalityAnalysisState stuct.
 *
 * Call this when there's a discontinuity in the data.
 */
void tonality_analysis_reset(TonalityAnalysisState *analysis);

void tonality_get_info(TonalityAnalysisState *tonal, AnalysisInfo *info_out, int len);

void run_analysis(TonalityAnalysisState *analysis, const CELTMode *celt_mode, const void *analysis_pcm,
                 int analysis_frame_size, int frame_size, int c1, int c2, int C, opus_int32 Fs,
                 int lsb_depth, downmix_func downmix, AnalysisInfo *analysis_info);

#endif
chromium/third_party/opus/src/src/analysis.h
