Built SDL2_image and _mixer static
This commit is contained in:
15
libsdl2_mixer/external/flac-1.3.2/src/share/replaygain_analysis/Makefile.lite
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15
libsdl2_mixer/external/flac-1.3.2/src/share/replaygain_analysis/Makefile.lite
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#
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||||
# GNU makefile
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||||
#
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||||
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||||
topdir = ../../..
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LIB_NAME = libreplaygain_analysis
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INCLUDES = -I$(topdir)/include
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SRCS_C = \
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replaygain_analysis.c
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include $(topdir)/build/lib.mk
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# DO NOT DELETE THIS LINE -- make depend depends on it.
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572
libsdl2_mixer/external/flac-1.3.2/src/share/replaygain_analysis/replaygain_analysis.c
vendored
Normal file
572
libsdl2_mixer/external/flac-1.3.2/src/share/replaygain_analysis/replaygain_analysis.c
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@@ -0,0 +1,572 @@
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/*
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* ReplayGainAnalysis - analyzes input samples and give the recommended dB change
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* Copyright (C) 2001 David Robinson and Glen Sawyer
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*
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* 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
|
||||
*
|
||||
* concept and filter values by David Robinson (David@Robinson.org)
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* -- blame him if you think the idea is flawed
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* original coding by Glen Sawyer (glensawyer@hotmail.com)
|
||||
* -- blame him if you think this runs too slowly, or the coding is otherwise flawed
|
||||
*
|
||||
* lots of code improvements by Frank Klemm ( http://www.uni-jena.de/~pfk/mpp/ )
|
||||
* -- credit him for all the _good_ programming ;)
|
||||
*
|
||||
* minor cosmetic tweaks to integrate with FLAC by Josh Coalson
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||||
*
|
||||
*
|
||||
* For an explanation of the concepts and the basic algorithms involved, go to:
|
||||
* http://www.replaygain.org/
|
||||
*/
|
||||
|
||||
/*
|
||||
* Here's the deal. Call
|
||||
*
|
||||
* InitGainAnalysis ( long samplefreq );
|
||||
*
|
||||
* to initialize everything. Call
|
||||
*
|
||||
* AnalyzeSamples ( const flac_float_t* left_samples,
|
||||
* const flac_float_t* right_samples,
|
||||
* size_t num_samples,
|
||||
* int num_channels );
|
||||
*
|
||||
* as many times as you want, with as many or as few samples as you want.
|
||||
* If mono, pass the sample buffer in through left_samples, leave
|
||||
* right_samples NULL, and make sure num_channels = 1.
|
||||
*
|
||||
* GetTitleGain()
|
||||
*
|
||||
* will return the recommended dB level change for all samples analyzed
|
||||
* SINCE THE LAST TIME you called GetTitleGain() OR InitGainAnalysis().
|
||||
*
|
||||
* GetAlbumGain()
|
||||
*
|
||||
* will return the recommended dB level change for all samples analyzed
|
||||
* since InitGainAnalysis() was called and finalized with GetTitleGain().
|
||||
*
|
||||
* Pseudo-code to process an album:
|
||||
*
|
||||
* flac_float_t l_samples [4096];
|
||||
* flac_float_t r_samples [4096];
|
||||
* size_t num_samples;
|
||||
* unsigned int num_songs;
|
||||
* unsigned int i;
|
||||
*
|
||||
* InitGainAnalysis ( 44100 );
|
||||
* for ( i = 1; i <= num_songs; i++ ) {
|
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* while ( ( num_samples = getSongSamples ( song[i], left_samples, right_samples ) ) > 0 )
|
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* AnalyzeSamples ( left_samples, right_samples, num_samples, 2 );
|
||||
* fprintf ("Recommended dB change for song %2d: %+6.2f dB\n", i, GetTitleGain() );
|
||||
* }
|
||||
* fprintf ("Recommended dB change for whole album: %+6.2f dB\n", GetAlbumGain() );
|
||||
*/
|
||||
|
||||
/*
|
||||
* So here's the main source of potential code confusion:
|
||||
*
|
||||
* The filters applied to the incoming samples are IIR filters,
|
||||
* meaning they rely on up to <filter order> number of previous samples
|
||||
* AND up to <filter order> number of previous filtered samples.
|
||||
*
|
||||
* I set up the AnalyzeSamples routine to minimize memory usage and interface
|
||||
* complexity. The speed isn't compromised too much (I don't think), but the
|
||||
* internal complexity is higher than it should be for such a relatively
|
||||
* simple routine.
|
||||
*
|
||||
* Optimization/clarity suggestions are welcome.
|
||||
*/
|
||||
|
||||
#ifdef HAVE_CONFIG_H
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||||
# include <config.h>
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||||
#endif
|
||||
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <string.h>
|
||||
#include <math.h>
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||||
#include "share/alloc.h"
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||||
#include "share/compat.h"
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#include "share/replaygain_analysis.h"
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||||
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||||
flac_float_t ReplayGainReferenceLoudness = 89.0; /* in dB SPL */
|
||||
|
||||
#define YULE_ORDER 10
|
||||
#define BUTTER_ORDER 2
|
||||
#define RMS_PERCENTILE 0.95 /* percentile which is louder than the proposed level */
|
||||
#define RMS_WINDOW_TIME 50 /* Time slice size [ms] */
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||||
#define STEPS_per_dB 100. /* Table entries per dB */
|
||||
#define MAX_dB 120. /* Table entries for 0...MAX_dB (normal max. values are 70...80 dB) */
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||||
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||||
#define MAX_ORDER (BUTTER_ORDER > YULE_ORDER ? BUTTER_ORDER : YULE_ORDER)
|
||||
#define PINK_REF 64.82 /* 298640883795 */ /* calibration value */
|
||||
|
||||
static flac_float_t linprebuf [MAX_ORDER * 2];
|
||||
static flac_float_t* linpre; /* left input samples, with pre-buffer */
|
||||
static flac_float_t* lstepbuf;
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||||
static flac_float_t* lstep; /* left "first step" (i.e. post first filter) samples */
|
||||
static flac_float_t* loutbuf;
|
||||
static flac_float_t* lout; /* left "out" (i.e. post second filter) samples */
|
||||
static flac_float_t rinprebuf [MAX_ORDER * 2];
|
||||
static flac_float_t* rinpre; /* right input samples ... */
|
||||
static flac_float_t* rstepbuf;
|
||||
static flac_float_t* rstep;
|
||||
static flac_float_t* routbuf;
|
||||
static flac_float_t* rout;
|
||||
static unsigned int sampleWindow; /* number of samples required to reach number of milliseconds required for RMS window */
|
||||
static unsigned long totsamp;
|
||||
static double lsum;
|
||||
static double rsum;
|
||||
#if 0
|
||||
static uint32_t A [(size_t)(STEPS_per_dB * MAX_dB)];
|
||||
static uint32_t B [(size_t)(STEPS_per_dB * MAX_dB)];
|
||||
#else
|
||||
/* [JEC] Solaris Forte compiler doesn't like float calc in array indices */
|
||||
static uint32_t A [120 * 100];
|
||||
static uint32_t B [120 * 100];
|
||||
#endif
|
||||
|
||||
#ifdef _MSC_VER
|
||||
#pragma warning ( disable : 4305 )
|
||||
#endif
|
||||
|
||||
struct ReplayGainFilter {
|
||||
long rate;
|
||||
unsigned downsample;
|
||||
flac_float_t BYule[YULE_ORDER+1];
|
||||
flac_float_t AYule[YULE_ORDER+1];
|
||||
flac_float_t BButter[BUTTER_ORDER+1];
|
||||
flac_float_t AButter[BUTTER_ORDER+1];
|
||||
};
|
||||
|
||||
static struct ReplayGainFilter *replaygainfilter;
|
||||
|
||||
static const struct ReplayGainFilter ReplayGainFilters[] = {
|
||||
|
||||
{
|
||||
48000, 0, /* ORIGINAL */
|
||||
{ 0.03857599435200, -0.02160367184185, -0.00123395316851, -0.00009291677959, -0.01655260341619, 0.02161526843274, -0.02074045215285, 0.00594298065125, 0.00306428023191, 0.00012025322027, 0.00288463683916 },
|
||||
{ 1.00000000000000, -3.84664617118067, 7.81501653005538, -11.34170355132042, 13.05504219327545, -12.28759895145294, 9.48293806319790, -5.87257861775999, 2.75465861874613, -0.86984376593551, 0.13919314567432 },
|
||||
{ 0.98621192462708, -1.97242384925416, 0.98621192462708 },
|
||||
{ 1.00000000000000, -1.97223372919527, 0.97261396931306 },
|
||||
},
|
||||
|
||||
{
|
||||
44100, 0, /* ORIGINAL */
|
||||
{ 0.05418656406430, -0.02911007808948, -0.00848709379851, -0.00851165645469, -0.00834990904936, 0.02245293253339, -0.02596338512915, 0.01624864962975, -0.00240879051584, 0.00674613682247, -0.00187763777362 },
|
||||
{ 1.00000000000000, -3.47845948550071, 6.36317777566148, -8.54751527471874, 9.47693607801280, -8.81498681370155, 6.85401540936998, -4.39470996079559, 2.19611684890774, -0.75104302451432, 0.13149317958808 },
|
||||
{ 0.98500175787242, -1.97000351574484, 0.98500175787242 },
|
||||
{ 1.00000000000000, -1.96977855582618, 0.97022847566350 },
|
||||
},
|
||||
|
||||
{
|
||||
37800, 0,
|
||||
{ 0.10296717174470, -0.04877975583256, -0.02878009075237, -0.03519509188311, 0.02888717172493, -0.00609872684844, 0.00209851217112, 0.00911704668543, 0.01154404718589, -0.00630293688700, 0.00107527155228 },
|
||||
{ 1.00000000000000, -2.64848054923531, 3.58406058405771, -3.83794914179161, 3.90142345804575, -3.50179818637243, 2.67085284083076, -1.82581142372418, 1.09530368139801, -0.47689017820395, 0.11171431535905 },
|
||||
{ 0.98252400815195, -1.96504801630391, 0.98252400815195 },
|
||||
{ 1.00000000000000, -1.96474258269041, 0.96535344991740 },
|
||||
},
|
||||
|
||||
{
|
||||
36000, 0,
|
||||
{ 0.11572297028613, -0.04120916051252, -0.04977731768022, -0.01047308680426, 0.00750863219157, 0.00055507694408, 0.00140344192886, 0.01286095246036, 0.00998223033885, -0.00725013810661, 0.00326503346879 },
|
||||
{ 1.00000000000000, -2.43606802820871, 3.01907406973844, -2.90372016038192, 2.67947188094303, -2.17606479220391, 1.44912956803015, -0.87785765549050, 0.53592202672557, -0.26469344817509, 0.07495878059717 },
|
||||
{ 0.98165826840326, -1.96331653680652, 0.98165826840326 },
|
||||
{ 1.00000000000000, -1.96298008938934, 0.96365298422371 },
|
||||
},
|
||||
|
||||
{
|
||||
32000, 0, /* ORIGINAL */
|
||||
{ 0.15457299681924, -0.09331049056315, -0.06247880153653, 0.02163541888798, -0.05588393329856, 0.04781476674921, 0.00222312597743, 0.03174092540049, -0.01390589421898, 0.00651420667831, -0.00881362733839 },
|
||||
{ 1.00000000000000, -2.37898834973084, 2.84868151156327, -2.64577170229825, 2.23697657451713, -1.67148153367602, 1.00595954808547, -0.45953458054983, 0.16378164858596, -0.05032077717131, 0.02347897407020 },
|
||||
{ 0.97938932735214, -1.95877865470428, 0.97938932735214 },
|
||||
{ 1.00000000000000, -1.95835380975398, 0.95920349965459 },
|
||||
},
|
||||
|
||||
{
|
||||
28000, 0,
|
||||
{ 0.23882392323383, -0.22007791534089, -0.06014581950332, 0.05004458058021, -0.03293111254977, 0.02348678189717, 0.04290549799671, -0.00938141862174, 0.00015095146303, -0.00712601540885, -0.00626520210162 },
|
||||
{ 1.00000000000000, -2.06894080899139, 1.76944699577212, -0.81404732584187, 0.25418286850232, -0.30340791669762, 0.35616884070937, -0.14967310591258, -0.07024154183279, 0.11078404345174, -0.03551838002425 },
|
||||
{ 0.97647981663949, -1.95295963327897, 0.97647981663949 },
|
||||
{ 1.00000000000000, -1.95240635772520, 0.95351290883275 },
|
||||
|
||||
},
|
||||
|
||||
{
|
||||
24000, 0, /* ORIGINAL */
|
||||
{ 0.30296907319327, -0.22613988682123, -0.08587323730772, 0.03282930172664, -0.00915702933434, -0.02364141202522, -0.00584456039913, 0.06276101321749, -0.00000828086748, 0.00205861885564, -0.02950134983287 },
|
||||
{ 1.00000000000000, -1.61273165137247, 1.07977492259970, -0.25656257754070, -0.16276719120440, -0.22638893773906, 0.39120800788284, -0.22138138954925, 0.04500235387352, 0.02005851806501, 0.00302439095741 },
|
||||
{ 0.97531843204928, -1.95063686409857, 0.97531843204928 },
|
||||
{ 1.00000000000000, -1.95002759149878, 0.95124613669835 },
|
||||
},
|
||||
|
||||
{
|
||||
22050, 0, /* ORIGINAL */
|
||||
{ 0.33642304856132, -0.25572241425570, -0.11828570177555, 0.11921148675203, -0.07834489609479, -0.00469977914380, -0.00589500224440, 0.05724228140351, 0.00832043980773, -0.01635381384540, -0.01760176568150 },
|
||||
{ 1.00000000000000, -1.49858979367799, 0.87350271418188, 0.12205022308084, -0.80774944671438, 0.47854794562326, -0.12453458140019, -0.04067510197014, 0.08333755284107, -0.04237348025746, 0.02977207319925 },
|
||||
{ 0.97316523498161, -1.94633046996323, 0.97316523498161 },
|
||||
{ 1.00000000000000, -1.94561023566527, 0.94705070426118 },
|
||||
},
|
||||
|
||||
{
|
||||
18900, 0,
|
||||
{ 0.38412657295385, -0.44533729608120, 0.20426638066221, -0.28031676047946, 0.31484202614802, -0.26078311203207, 0.12925201224848, -0.01141164696062, 0.03036522115769, -0.03776339305406, 0.00692036603586 },
|
||||
{ 1.00000000000000, -1.74403915585708, 1.96686095832499, -2.10081452941881, 1.90753918182846, -1.83814263754422, 1.36971352214969, -0.77883609116398, 0.39266422457649, -0.12529383592986, 0.05424760697665 },
|
||||
{ 0.96535326815829, -1.93070653631658, 0.96535326815829 },
|
||||
{ 1.00000000000000, -1.92950577983524, 0.93190729279793 },
|
||||
},
|
||||
|
||||
{
|
||||
16000, 0, /* ORIGINAL */
|
||||
{ 0.44915256608450, -0.14351757464547, -0.22784394429749, -0.01419140100551, 0.04078262797139, -0.12398163381748, 0.04097565135648, 0.10478503600251, -0.01863887810927, -0.03193428438915, 0.00541907748707 },
|
||||
{ 1.00000000000000, -0.62820619233671, 0.29661783706366, -0.37256372942400, 0.00213767857124, -0.42029820170918, 0.22199650564824, 0.00613424350682, 0.06747620744683, 0.05784820375801, 0.03222754072173 },
|
||||
{ 0.96454515552826, -1.92909031105652, 0.96454515552826 },
|
||||
{ 1.00000000000000, -1.92783286977036, 0.93034775234268 },
|
||||
},
|
||||
|
||||
{
|
||||
12000, 0, /* ORIGINAL */
|
||||
{ 0.56619470757641, -0.75464456939302, 0.16242137742230, 0.16744243493672, -0.18901604199609, 0.30931782841830, -0.27562961986224, 0.00647310677246, 0.08647503780351, -0.03788984554840, -0.00588215443421 },
|
||||
{ 1.00000000000000, -1.04800335126349, 0.29156311971249, -0.26806001042947, 0.00819999645858, 0.45054734505008, -0.33032403314006, 0.06739368333110, -0.04784254229033, 0.01639907836189, 0.01807364323573 },
|
||||
{ 0.96009142950541, -1.92018285901082, 0.96009142950541 },
|
||||
{ 1.00000000000000, -1.91858953033784, 0.92177618768381 },
|
||||
},
|
||||
|
||||
{
|
||||
11025, 0, /* ORIGINAL */
|
||||
{ 0.58100494960553, -0.53174909058578, -0.14289799034253, 0.17520704835522, 0.02377945217615, 0.15558449135573, -0.25344790059353, 0.01628462406333, 0.06920467763959, -0.03721611395801, -0.00749618797172 },
|
||||
{ 1.00000000000000, -0.51035327095184, -0.31863563325245, -0.20256413484477, 0.14728154134330, 0.38952639978999, -0.23313271880868, -0.05246019024463, -0.02505961724053, 0.02442357316099, 0.01818801111503 },
|
||||
{ 0.95856916599601, -1.91713833199203, 0.95856916599601 },
|
||||
{ 1.00000000000000, -1.91542108074780, 0.91885558323625 },
|
||||
},
|
||||
|
||||
{
|
||||
8000, 0, /* ORIGINAL */
|
||||
{ 0.53648789255105, -0.42163034350696, -0.00275953611929, 0.04267842219415, -0.10214864179676, 0.14590772289388, -0.02459864859345, -0.11202315195388, -0.04060034127000, 0.04788665548180, -0.02217936801134 },
|
||||
{ 1.00000000000000, -0.25049871956020, -0.43193942311114, -0.03424681017675, -0.04678328784242, 0.26408300200955, 0.15113130533216, -0.17556493366449, -0.18823009262115, 0.05477720428674, 0.04704409688120 },
|
||||
{ 0.94597685600279, -1.89195371200558, 0.94597685600279 },
|
||||
{ 1.00000000000000, -1.88903307939452, 0.89487434461664 },
|
||||
},
|
||||
|
||||
};
|
||||
|
||||
#ifdef _MSC_VER
|
||||
#pragma warning ( default : 4305 )
|
||||
#endif
|
||||
|
||||
/* When calling this procedure, make sure that ip[-order] and op[-order] point to real data! */
|
||||
|
||||
static void
|
||||
filter ( const flac_float_t* input, flac_float_t* output, size_t nSamples, const flac_float_t* a, const flac_float_t* b, size_t order, unsigned downsample )
|
||||
{
|
||||
double y;
|
||||
size_t i;
|
||||
size_t k;
|
||||
|
||||
const flac_float_t* input_head = input;
|
||||
const flac_float_t* input_tail;
|
||||
|
||||
flac_float_t* output_head = output;
|
||||
flac_float_t* output_tail;
|
||||
|
||||
for ( i = 0; i < nSamples; i++, input_head += downsample, ++output_head ) {
|
||||
|
||||
input_tail = input_head;
|
||||
output_tail = output_head;
|
||||
|
||||
y = *input_head * b[0];
|
||||
|
||||
for ( k = 1; k <= order; k++ ) {
|
||||
input_tail -= downsample;
|
||||
--output_tail;
|
||||
y += *input_tail * b[k] - *output_tail * a[k];
|
||||
}
|
||||
|
||||
output[i] = (flac_float_t)y;
|
||||
}
|
||||
}
|
||||
|
||||
/* returns a INIT_GAIN_ANALYSIS_OK if successful, INIT_GAIN_ANALYSIS_ERROR if not */
|
||||
|
||||
static struct ReplayGainFilter*
|
||||
CreateGainFilter ( long samplefreq )
|
||||
{
|
||||
unsigned i;
|
||||
long maxrate = 0;
|
||||
unsigned downsample = 1;
|
||||
struct ReplayGainFilter* gainfilter = malloc(sizeof(*gainfilter));
|
||||
|
||||
if ( !gainfilter )
|
||||
return 0;
|
||||
|
||||
while (1) {
|
||||
for ( i = 0; i < sizeof(ReplayGainFilters)/sizeof(ReplayGainFilters[0]); ++i ) {
|
||||
if (maxrate < ReplayGainFilters[i].rate)
|
||||
maxrate = ReplayGainFilters[i].rate;
|
||||
|
||||
if ( ReplayGainFilters[i].rate == samplefreq ) {
|
||||
*gainfilter = ReplayGainFilters[i];
|
||||
gainfilter->downsample = downsample;
|
||||
return gainfilter;
|
||||
}
|
||||
}
|
||||
|
||||
if (samplefreq < maxrate)
|
||||
break;
|
||||
|
||||
while (samplefreq > maxrate) {
|
||||
downsample *= 2;
|
||||
samplefreq /= 2;
|
||||
}
|
||||
}
|
||||
|
||||
free(gainfilter);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void*
|
||||
ReallocateWindowBuffer(unsigned window_size, flac_float_t **window_buffer)
|
||||
{
|
||||
*window_buffer = safe_realloc_(*window_buffer, sizeof(**window_buffer) * (window_size + MAX_ORDER));
|
||||
return *window_buffer;
|
||||
}
|
||||
|
||||
static int
|
||||
ResetSampleFrequency ( long samplefreq ) {
|
||||
int i;
|
||||
|
||||
free(replaygainfilter);
|
||||
|
||||
replaygainfilter = CreateGainFilter( samplefreq );
|
||||
|
||||
if ( ! replaygainfilter)
|
||||
return INIT_GAIN_ANALYSIS_ERROR;
|
||||
|
||||
sampleWindow =
|
||||
(replaygainfilter->rate * RMS_WINDOW_TIME + 1000-1) / 1000;
|
||||
|
||||
if ( ! ReallocateWindowBuffer(sampleWindow, &lstepbuf) ||
|
||||
! ReallocateWindowBuffer(sampleWindow, &rstepbuf) ||
|
||||
! ReallocateWindowBuffer(sampleWindow, &loutbuf) ||
|
||||
! ReallocateWindowBuffer(sampleWindow, &routbuf) ) {
|
||||
|
||||
return INIT_GAIN_ANALYSIS_ERROR;
|
||||
}
|
||||
|
||||
/* zero out initial values */
|
||||
for ( i = 0; i < MAX_ORDER; i++ )
|
||||
linprebuf[i] = lstepbuf[i] = loutbuf[i] = rinprebuf[i] = rstepbuf[i] = routbuf[i] = 0.;
|
||||
|
||||
lsum = 0.;
|
||||
rsum = 0.;
|
||||
totsamp = 0;
|
||||
|
||||
memset ( A, 0, sizeof(A) );
|
||||
|
||||
return INIT_GAIN_ANALYSIS_OK;
|
||||
}
|
||||
|
||||
int
|
||||
ValidGainFrequency ( long samplefreq )
|
||||
{
|
||||
struct ReplayGainFilter* gainfilter = CreateGainFilter( samplefreq );
|
||||
|
||||
free(gainfilter);
|
||||
|
||||
return gainfilter != 0;
|
||||
}
|
||||
|
||||
int
|
||||
InitGainAnalysis ( long samplefreq )
|
||||
{
|
||||
if (ResetSampleFrequency(samplefreq) != INIT_GAIN_ANALYSIS_OK) {
|
||||
return INIT_GAIN_ANALYSIS_ERROR;
|
||||
}
|
||||
|
||||
linpre = linprebuf + MAX_ORDER;
|
||||
rinpre = rinprebuf + MAX_ORDER;
|
||||
lstep = lstepbuf + MAX_ORDER;
|
||||
rstep = rstepbuf + MAX_ORDER;
|
||||
lout = loutbuf + MAX_ORDER;
|
||||
rout = routbuf + MAX_ORDER;
|
||||
|
||||
memset ( B, 0, sizeof(B) );
|
||||
|
||||
return INIT_GAIN_ANALYSIS_OK;
|
||||
}
|
||||
|
||||
/* returns GAIN_ANALYSIS_OK if successful, GAIN_ANALYSIS_ERROR if not */
|
||||
|
||||
int
|
||||
AnalyzeSamples ( const flac_float_t* left_samples, const flac_float_t* right_samples, size_t num_samples, int num_channels )
|
||||
{
|
||||
unsigned downsample = replaygainfilter->downsample;
|
||||
const flac_float_t* curleft;
|
||||
const flac_float_t* curright;
|
||||
long prebufsamples;
|
||||
long batchsamples;
|
||||
long cursamples;
|
||||
long cursamplepos;
|
||||
int i;
|
||||
|
||||
num_samples /= downsample;
|
||||
|
||||
if ( num_samples == 0 )
|
||||
return GAIN_ANALYSIS_OK;
|
||||
|
||||
cursamplepos = 0;
|
||||
batchsamples = num_samples;
|
||||
|
||||
switch ( num_channels) {
|
||||
case 1: right_samples = left_samples;
|
||||
case 2: break;
|
||||
default: return GAIN_ANALYSIS_ERROR;
|
||||
}
|
||||
|
||||
prebufsamples = MAX_ORDER;
|
||||
if ((size_t) prebufsamples > num_samples)
|
||||
prebufsamples = num_samples;
|
||||
|
||||
for ( i = 0; i < prebufsamples; ++i ) {
|
||||
linprebuf[i+MAX_ORDER] = left_samples [i * downsample];
|
||||
rinprebuf[i+MAX_ORDER] = right_samples[i * downsample];
|
||||
}
|
||||
|
||||
while ( batchsamples > 0 ) {
|
||||
cursamples = batchsamples > (long)(sampleWindow-totsamp) ? (long)(sampleWindow - totsamp) : batchsamples;
|
||||
if ( cursamplepos < MAX_ORDER ) {
|
||||
downsample = 1;
|
||||
curleft = linpre+cursamplepos;
|
||||
curright = rinpre+cursamplepos;
|
||||
if (cursamples > MAX_ORDER - cursamplepos )
|
||||
cursamples = MAX_ORDER - cursamplepos;
|
||||
}
|
||||
else {
|
||||
downsample = replaygainfilter->downsample;
|
||||
curleft = left_samples + cursamplepos * downsample;
|
||||
curright = right_samples + cursamplepos * downsample;
|
||||
}
|
||||
|
||||
filter ( curleft , lstep + totsamp, cursamples, replaygainfilter->AYule, replaygainfilter->BYule, YULE_ORDER, downsample );
|
||||
filter ( curright, rstep + totsamp, cursamples, replaygainfilter->AYule, replaygainfilter->BYule, YULE_ORDER, downsample );
|
||||
|
||||
filter ( lstep + totsamp, lout + totsamp, cursamples, replaygainfilter->AButter, replaygainfilter->BButter, BUTTER_ORDER, 1 );
|
||||
filter ( rstep + totsamp, rout + totsamp, cursamples, replaygainfilter->AButter, replaygainfilter->BButter, BUTTER_ORDER, 1 );
|
||||
|
||||
for ( i = 0; i < cursamples; i++ ) { /* Get the squared values */
|
||||
lsum += lout [totsamp+i] * lout [totsamp+i];
|
||||
rsum += rout [totsamp+i] * rout [totsamp+i];
|
||||
}
|
||||
|
||||
batchsamples -= cursamples;
|
||||
cursamplepos += cursamples;
|
||||
totsamp += cursamples;
|
||||
if ( totsamp == sampleWindow ) { /* Get the Root Mean Square (RMS) for this set of samples */
|
||||
double val = STEPS_per_dB * 10. * log10 ( (lsum+rsum) / totsamp * 0.5 + 1.e-37 );
|
||||
int ival = (int) val;
|
||||
if ( ival < 0 ) ival = 0;
|
||||
if ( ival >= (int)(sizeof(A)/sizeof(*A)) ) ival = (int)(sizeof(A)/sizeof(*A)) - 1;
|
||||
A [ival]++;
|
||||
lsum = rsum = 0.;
|
||||
memmove ( loutbuf , loutbuf + totsamp, MAX_ORDER * sizeof(flac_float_t) );
|
||||
memmove ( routbuf , routbuf + totsamp, MAX_ORDER * sizeof(flac_float_t) );
|
||||
memmove ( lstepbuf, lstepbuf + totsamp, MAX_ORDER * sizeof(flac_float_t) );
|
||||
memmove ( rstepbuf, rstepbuf + totsamp, MAX_ORDER * sizeof(flac_float_t) );
|
||||
totsamp = 0;
|
||||
}
|
||||
if ( totsamp > sampleWindow ) /* somehow I really screwed up: Error in programming! Contact author about totsamp > sampleWindow */
|
||||
return GAIN_ANALYSIS_ERROR;
|
||||
}
|
||||
|
||||
if ( num_samples < MAX_ORDER ) {
|
||||
memmove ( linprebuf, linprebuf + num_samples, (MAX_ORDER-num_samples) * sizeof(flac_float_t) );
|
||||
memmove ( rinprebuf, rinprebuf + num_samples, (MAX_ORDER-num_samples) * sizeof(flac_float_t) );
|
||||
memcpy ( linprebuf + MAX_ORDER - num_samples, left_samples, num_samples * sizeof(flac_float_t) );
|
||||
memcpy ( rinprebuf + MAX_ORDER - num_samples, right_samples, num_samples * sizeof(flac_float_t) );
|
||||
}
|
||||
else {
|
||||
downsample = replaygainfilter->downsample;
|
||||
|
||||
left_samples += (num_samples - MAX_ORDER) * downsample;
|
||||
right_samples += (num_samples - MAX_ORDER) * downsample;
|
||||
|
||||
for ( i = 0; i < MAX_ORDER; ++i ) {
|
||||
linprebuf[i] = left_samples [i * downsample];
|
||||
rinprebuf[i] = right_samples[i * downsample];
|
||||
}
|
||||
}
|
||||
|
||||
return GAIN_ANALYSIS_OK;
|
||||
}
|
||||
|
||||
|
||||
static flac_float_t
|
||||
analyzeResult ( uint32_t* Array, size_t len )
|
||||
{
|
||||
uint32_t elems;
|
||||
int32_t upper;
|
||||
size_t i;
|
||||
|
||||
elems = 0;
|
||||
for ( i = 0; i < len; i++ )
|
||||
elems += Array[i];
|
||||
if ( elems == 0 )
|
||||
return GAIN_NOT_ENOUGH_SAMPLES;
|
||||
|
||||
/* workaround for GCC bug #61423: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61423 */
|
||||
#if 0
|
||||
upper = (int32_t) ceil (elems * (1. - RMS_PERCENTILE));
|
||||
#else
|
||||
upper = (int32_t) (elems / 20 + ((elems % 20) ? 1 : 0));
|
||||
#endif
|
||||
for ( i = len; i-- > 0; ) {
|
||||
if ( (upper -= Array[i]) <= 0 )
|
||||
break;
|
||||
}
|
||||
|
||||
return (flac_float_t) ((flac_float_t)PINK_REF - (flac_float_t)i / (flac_float_t)STEPS_per_dB);
|
||||
}
|
||||
|
||||
|
||||
flac_float_t
|
||||
GetTitleGain ( void )
|
||||
{
|
||||
flac_float_t retval;
|
||||
unsigned int i;
|
||||
|
||||
retval = analyzeResult ( A, sizeof(A)/sizeof(*A) );
|
||||
|
||||
for ( i = 0; i < sizeof(A)/sizeof(*A); i++ ) {
|
||||
B[i] += A[i];
|
||||
A[i] = 0;
|
||||
}
|
||||
|
||||
for ( i = 0; i < MAX_ORDER; i++ )
|
||||
linprebuf[i] = lstepbuf[i] = loutbuf[i] = rinprebuf[i] = rstepbuf[i] = routbuf[i] = 0.f;
|
||||
|
||||
totsamp = 0;
|
||||
lsum = rsum = 0.;
|
||||
return retval;
|
||||
}
|
||||
|
||||
|
||||
flac_float_t
|
||||
GetAlbumGain ( void )
|
||||
{
|
||||
return analyzeResult ( B, sizeof(B)/sizeof(*B) );
|
||||
}
|
||||
|
||||
/* end of replaygain_analysis.c */
|
||||
180
libsdl2_mixer/external/flac-1.3.2/src/share/replaygain_analysis/replaygain_analysis_static.vcproj
vendored
Normal file
180
libsdl2_mixer/external/flac-1.3.2/src/share/replaygain_analysis/replaygain_analysis_static.vcproj
vendored
Normal file
@@ -0,0 +1,180 @@
|
||||
<?xml version="1.0" encoding="Windows-1252"?>
|
||||
<VisualStudioProject
|
||||
ProjectType="Visual C++"
|
||||
Version="8.00"
|
||||
Name="replaygain_analysis_static"
|
||||
ProjectGUID="{4cefbc89-c215-11db-8314-0800200c9a66}"
|
||||
RootNamespace="replaygain_analysis_static"
|
||||
Keyword="Win32Proj"
|
||||
>
|
||||
<Platforms>
|
||||
<Platform
|
||||
Name="Win32"
|
||||
/>
|
||||
</Platforms>
|
||||
<ToolFiles>
|
||||
</ToolFiles>
|
||||
<Configurations>
|
||||
<Configuration
|
||||
Name="Debug|Win32"
|
||||
OutputDirectory="$(SolutionDir)objs\$(ConfigurationName)\lib"
|
||||
IntermediateDirectory="$(ConfigurationName)"
|
||||
ConfigurationType="4"
|
||||
>
|
||||
<Tool
|
||||
Name="VCPreBuildEventTool"
|
||||
/>
|
||||
<Tool
|
||||
Name="VCCustomBuildTool"
|
||||
/>
|
||||
<Tool
|
||||
Name="VCXMLDataGeneratorTool"
|
||||
/>
|
||||
<Tool
|
||||
Name="VCWebServiceProxyGeneratorTool"
|
||||
/>
|
||||
<Tool
|
||||
Name="VCMIDLTool"
|
||||
/>
|
||||
<Tool
|
||||
Name="VCCLCompilerTool"
|
||||
Optimization="0"
|
||||
AdditionalIncludeDirectories=".\include;..\..\..\include"
|
||||
PreprocessorDefinitions="WIN32;_DEBUG;_LIB;FLAC__NO_DLL;DEBUG"
|
||||
MinimalRebuild="true"
|
||||
BasicRuntimeChecks="3"
|
||||
RuntimeLibrary="1"
|
||||
UsePrecompiledHeader="0"
|
||||
WarningLevel="3"
|
||||
Detect64BitPortabilityProblems="true"
|
||||
DebugInformationFormat="4"
|
||||
CompileAs="0"
|
||||
DisableSpecificWarnings="4267;4996"
|
||||
/>
|
||||
<Tool
|
||||
Name="VCManagedResourceCompilerTool"
|
||||
/>
|
||||
<Tool
|
||||
Name="VCResourceCompilerTool"
|
||||
/>
|
||||
<Tool
|
||||
Name="VCPreLinkEventTool"
|
||||
/>
|
||||
<Tool
|
||||
Name="VCLibrarianTool"
|
||||
/>
|
||||
<Tool
|
||||
Name="VCALinkTool"
|
||||
/>
|
||||
<Tool
|
||||
Name="VCXDCMakeTool"
|
||||
/>
|
||||
<Tool
|
||||
Name="VCBscMakeTool"
|
||||
/>
|
||||
<Tool
|
||||
Name="VCFxCopTool"
|
||||
/>
|
||||
<Tool
|
||||
Name="VCPostBuildEventTool"
|
||||
/>
|
||||
</Configuration>
|
||||
<Configuration
|
||||
Name="Release|Win32"
|
||||
OutputDirectory="$(SolutionDir)objs\$(ConfigurationName)\lib"
|
||||
IntermediateDirectory="$(ConfigurationName)"
|
||||
ConfigurationType="4"
|
||||
WholeProgramOptimization="1"
|
||||
>
|
||||
<Tool
|
||||
Name="VCPreBuildEventTool"
|
||||
/>
|
||||
<Tool
|
||||
Name="VCCustomBuildTool"
|
||||
/>
|
||||
<Tool
|
||||
Name="VCXMLDataGeneratorTool"
|
||||
/>
|
||||
<Tool
|
||||
Name="VCWebServiceProxyGeneratorTool"
|
||||
/>
|
||||
<Tool
|
||||
Name="VCMIDLTool"
|
||||
/>
|
||||
<Tool
|
||||
Name="VCCLCompilerTool"
|
||||
EnableIntrinsicFunctions="true"
|
||||
FavorSizeOrSpeed="1"
|
||||
OmitFramePointers="true"
|
||||
WholeProgramOptimization="true"
|
||||
AdditionalIncludeDirectories=".\include;..\..\..\include"
|
||||
PreprocessorDefinitions="WIN32;NDEBUG;_LIB;FLAC__NO_DLL"
|
||||
RuntimeLibrary="0"
|
||||
BufferSecurityCheck="false"
|
||||
UsePrecompiledHeader="0"
|
||||
WarningLevel="3"
|
||||
Detect64BitPortabilityProblems="true"
|
||||
DebugInformationFormat="3"
|
||||
CompileAs="0"
|
||||
DisableSpecificWarnings="4267;4996"
|
||||
/>
|
||||
<Tool
|
||||
Name="VCManagedResourceCompilerTool"
|
||||
/>
|
||||
<Tool
|
||||
Name="VCResourceCompilerTool"
|
||||
/>
|
||||
<Tool
|
||||
Name="VCPreLinkEventTool"
|
||||
/>
|
||||
<Tool
|
||||
Name="VCLibrarianTool"
|
||||
/>
|
||||
<Tool
|
||||
Name="VCALinkTool"
|
||||
/>
|
||||
<Tool
|
||||
Name="VCXDCMakeTool"
|
||||
/>
|
||||
<Tool
|
||||
Name="VCBscMakeTool"
|
||||
/>
|
||||
<Tool
|
||||
Name="VCFxCopTool"
|
||||
/>
|
||||
<Tool
|
||||
Name="VCPostBuildEventTool"
|
||||
/>
|
||||
</Configuration>
|
||||
</Configurations>
|
||||
<References>
|
||||
</References>
|
||||
<Files>
|
||||
<Filter
|
||||
Name="Header Files"
|
||||
Filter="h;hpp;hxx;hm;inl;inc;xsd"
|
||||
UniqueIdentifier="{93995380-89BD-4b04-88EB-625FBE52EBFB}"
|
||||
>
|
||||
</Filter>
|
||||
<Filter
|
||||
Name="Public Header Files"
|
||||
>
|
||||
<File
|
||||
RelativePath="..\..\..\include\share\replaygain_analysis.h"
|
||||
>
|
||||
</File>
|
||||
</Filter>
|
||||
<Filter
|
||||
Name="Source Files"
|
||||
Filter="cpp;c;cc;cxx;def;odl;idl;hpj;bat;asm;asmx"
|
||||
UniqueIdentifier="{4FC737F1-C7A5-4376-A066-2A32D752A2FF}"
|
||||
>
|
||||
<File
|
||||
RelativePath=".\replaygain_analysis.c"
|
||||
>
|
||||
</File>
|
||||
</Filter>
|
||||
</Files>
|
||||
<Globals>
|
||||
</Globals>
|
||||
</VisualStudioProject>
|
||||
140
libsdl2_mixer/external/flac-1.3.2/src/share/replaygain_analysis/replaygain_analysis_static.vcxproj
vendored
Normal file
140
libsdl2_mixer/external/flac-1.3.2/src/share/replaygain_analysis/replaygain_analysis_static.vcxproj
vendored
Normal file
@@ -0,0 +1,140 @@
|
||||
<?xml version="1.0" encoding="utf-8"?>
|
||||
<Project DefaultTargets="Build" ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
|
||||
<ItemGroup Label="ProjectConfigurations">
|
||||
<ProjectConfiguration Include="Debug|Win32">
|
||||
<Configuration>Debug</Configuration>
|
||||
<Platform>Win32</Platform>
|
||||
</ProjectConfiguration>
|
||||
<ProjectConfiguration Include="Debug|x64">
|
||||
<Configuration>Debug</Configuration>
|
||||
<Platform>x64</Platform>
|
||||
</ProjectConfiguration>
|
||||
<ProjectConfiguration Include="Release|Win32">
|
||||
<Configuration>Release</Configuration>
|
||||
<Platform>Win32</Platform>
|
||||
</ProjectConfiguration>
|
||||
<ProjectConfiguration Include="Release|x64">
|
||||
<Configuration>Release</Configuration>
|
||||
<Platform>x64</Platform>
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Reference in New Issue
Block a user