74 lines
3.8 KiB
C
74 lines
3.8 KiB
C
|
/* grabbag - Convenience lib for various routines common to several tools
|
||
|
|
* Copyright (C) 2002-2009 Josh Coalson
|
||
|
|
* Copyright (C) 2011-2016 Xiph.Org Foundation
|
||
|
|
*
|
||
|
|
* This library is free software; you can redistribute it and/or
|
||
|
|
* modify it under the terms of the GNU Lesser General Public
|
||
|
|
* License as published by the Free Software Foundation; either
|
||
|
|
* version 2.1 of the License, or (at your option) any later version.
|
||
|
|
*
|
||
|
|
* This library is distributed in the hope that it will be useful,
|
||
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||
|
|
* Lesser General Public License for more details.
|
||
|
|
*
|
||
|
|
* You should have received a copy of the GNU Lesser General Public
|
||
|
|
* License along with this library; if not, write to the Free Software
|
||
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
||
|
|
*/
|
||
|
|
|
||
|
|
/*
|
||
|
|
* This wraps the replaygain_analysis lib, which is LGPL. This wrapper
|
||
|
|
* allows analysis of different input resolutions by automatically
|
||
|
|
* scaling the input signal
|
||
|
|
*/
|
||
|
|
|
||
|
|
/* This .h cannot be included by itself; #include "share/grabbag.h" instead. */
|
||
|
|
|
||
|
|
#ifndef GRABBAG__REPLAYGAIN_H
|
||
|
|
#define GRABBAG__REPLAYGAIN_H
|
||
|
|
|
||
|
|
#include "FLAC/metadata.h"
|
||
|
|
|
||
|
|
#ifdef __cplusplus
|
||
|
|
extern "C" {
|
||
|
|
#endif
|
||
|
|
|
||
|
|
extern const unsigned GRABBAG__REPLAYGAIN_MAX_TAG_SPACE_REQUIRED;
|
||
|
|
|
||
|
|
extern const FLAC__byte * const GRABBAG__REPLAYGAIN_TAG_REFERENCE_LOUDNESS; /* = "REPLAYGAIN_REFERENCE_LOUDNESS" */
|
||
|
|
extern const FLAC__byte * const GRABBAG__REPLAYGAIN_TAG_TITLE_GAIN; /* = "REPLAYGAIN_TRACK_GAIN" */
|
||
|
|
extern const FLAC__byte * const GRABBAG__REPLAYGAIN_TAG_TITLE_PEAK; /* = "REPLAYGAIN_TRACK_PEAK" */
|
||
|
|
extern const FLAC__byte * const GRABBAG__REPLAYGAIN_TAG_ALBUM_GAIN; /* = "REPLAYGAIN_ALBUM_GAIN" */
|
||
|
|
extern const FLAC__byte * const GRABBAG__REPLAYGAIN_TAG_ALBUM_PEAK; /* = "REPLAYGAIN_ALBUM_PEAK" */
|
||
|
|
|
||
|
|
FLAC__bool grabbag__replaygain_is_valid_sample_frequency(unsigned sample_frequency);
|
||
|
|
|
||
|
|
FLAC__bool grabbag__replaygain_init(unsigned sample_frequency);
|
||
|
|
|
||
|
|
/* 'bps' must be valid for FLAC, i.e. >=4 and <= 32 */
|
||
|
|
FLAC__bool grabbag__replaygain_analyze(const FLAC__int32 * const input[], FLAC__bool is_stereo, unsigned bps, unsigned samples);
|
||
|
|
|
||
|
|
void grabbag__replaygain_get_album(float *gain, float *peak);
|
||
|
|
void grabbag__replaygain_get_title(float *gain, float *peak);
|
||
|
|
|
||
|
|
/* These three functions return an error string on error, or NULL if successful */
|
||
|
|
const char *grabbag__replaygain_analyze_file(const char *filename, float *title_gain, float *title_peak);
|
||
|
|
const char *grabbag__replaygain_store_to_vorbiscomment(FLAC__StreamMetadata *block, float album_gain, float album_peak, float title_gain, float title_peak);
|
||
|
|
const char *grabbag__replaygain_store_to_vorbiscomment_reference(FLAC__StreamMetadata *block);
|
||
|
|
const char *grabbag__replaygain_store_to_vorbiscomment_album(FLAC__StreamMetadata *block, float album_gain, float album_peak);
|
||
|
|
const char *grabbag__replaygain_store_to_vorbiscomment_title(FLAC__StreamMetadata *block, float title_gain, float title_peak);
|
||
|
|
const char *grabbag__replaygain_store_to_file(const char *filename, float album_gain, float album_peak, float title_gain, float title_peak, FLAC__bool preserve_modtime);
|
||
|
|
const char *grabbag__replaygain_store_to_file_reference(const char *filename, FLAC__bool preserve_modtime);
|
||
|
|
const char *grabbag__replaygain_store_to_file_album(const char *filename, float album_gain, float album_peak, FLAC__bool preserve_modtime);
|
||
|
|
const char *grabbag__replaygain_store_to_file_title(const char *filename, float title_gain, float title_peak, FLAC__bool preserve_modtime);
|
||
|
|
|
||
|
|
FLAC__bool grabbag__replaygain_load_from_vorbiscomment(const FLAC__StreamMetadata *block, FLAC__bool album_mode, FLAC__bool strict, double *reference, double *gain, double *peak);
|
||
|
|
double grabbag__replaygain_compute_scale_factor(double peak, double gain, double preamp, FLAC__bool prevent_clipping);
|
||
|
|
|
||
|
|
#ifdef __cplusplus
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#endif
|