Commit 1f228161 authored by Josh Coalson's avatar Josh Coalson
Browse files

initial import

parent e7ff8fb7
/*
* ReplayGainAnalysis - analyzes input samples and give the recommended dB change
* Copyright (C) 2001 David Robinson and Glen Sawyer
*
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* concept and filter values by David Robinson (David@Robinson.org)
* -- blame him if you think the idea is flawed
* coding by Glen Sawyer (glensawyer@hotmail.com) 442 N 700 E, Provo, UT 84606 USA
* -- blame him if you think this runs too slowly, or the coding is otherwise flawed
* minor cosmetic tweaks to integrate with FLAC by Josh Coalson
*
* For an explanation of the concepts and the basic algorithms involved, go to:
* http://www.replaygain.org/
*/
#ifndef GAIN_ANALYSIS_H
#define GAIN_ANALYSIS_H
#if defined(FLAC__NO_DLL) || defined(unix) || defined(__CYGWIN__) || defined(__CYGWIN32__)
#define GAIN_ANALYSIS_API
#else
#ifdef GAIN_ANALYSIS_API_EXPORTS
#define GAIN_ANALYSIS_API _declspec(dllexport)
#else
#define GAIN_ANALYSIS_API _declspec(dllimport)
#define __LIBNAME__ "gain_analysis.lib"
#pragma comment(lib, __LIBNAME__)
#undef __LIBNAME__
#endif
#endif
#include <stddef.h>
#define GAIN_NOT_ENOUGH_SAMPLES -24601
#define GAIN_ANALYSIS_ERROR 0
#define GAIN_ANALYSIS_OK 1
#define INIT_GAIN_ANALYSIS_ERROR 0
#define INIT_GAIN_ANALYSIS_OK 1
#ifdef __cplusplus
extern "C" {
#endif
typedef float Float_t; /* Type used for filtering */
GAIN_ANALYSIS_API int InitGainAnalysis ( long samplefreq );
GAIN_ANALYSIS_API int AnalyzeSamples ( const Float_t* left_samples, const Float_t* right_samples, size_t num_samples, int num_channels );
GAIN_ANALYSIS_API int ResetSampleFrequency ( long samplefreq );
GAIN_ANALYSIS_API Float_t GetTitleGain ( void );
GAIN_ANALYSIS_API Float_t GetAlbumGain ( void );
#ifdef __cplusplus
}
#endif
#endif /* GAIN_ANALYSIS_H */
/* replaygain - Convenience lib for calculating/storing ReplayGain in FLAC
* Copyright (C) 2002 Josh Coalson
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
/*
* This wraps the gain_analysis lib, which is LGPL. This wrapper
* allows analysis of different input resolutions by automatically
* scaling the input signal
*/
#ifndef FLAC__SHARE__REPLAYGAIN_H
#define FLAC__SHARE__REPLAYGAIN_H
#if defined(FLAC__NO_DLL) || defined(unix) || defined(__CYGWIN__) || defined(__CYGWIN32__)
#define REPLAYGAIN_API
#else
#ifdef REPLAYGAIN_API_EXPORTS
#define REPLAYGAIN_API _declspec(dllexport)
#else
#define REPLAYGAIN_API _declspec(dllimport)
#define __LIBNAME__ "replaygain.lib"
#pragma comment(lib, __LIBNAME__)
#undef __LIBNAME__
#endif
#endif
#include "FLAC/ordinals.h"
#ifdef __cplusplus
extern "C" {
#endif
REPLAYGAIN_API FLAC__bool FLAC__replaygain_init(unsigned sample_frequency);
/* 'bps' must be valid for FLAC, i.e. >=4 and <= 32 */
REPLAYGAIN_API FLAC__bool FLAC__replaygain_analyze(const FLAC__int32 * const input[], FLAC__bool is_stereo, unsigned bps, unsigned samples);
REPLAYGAIN_API float FLAC__replaygain_get_album_gain();
REPLAYGAIN_API float FLAC__replaygain_get_title_gain();
#ifdef __cplusplus
}
#endif
#endif
## Process this file with automake to produce Makefile.in
AUTOMAKE_OPTIONS = foreign
INCLUDES = -I$(top_srcdir)/include
noinst_LIBRARIES = libreplaygain.a
libreplaygain_a_SOURCES = replaygain.c
EXTRA_DIST = \
Makefile.lite \
Makefile.vc \
replaygain.dsp
debug:
$(MAKE) all CFLAGS="@DEBUG@"
profile:
$(MAKE) all CFLAGS="@PROFILE@"
#
# GNU makefile
#
topdir = ../../..
LIB_NAME = libreplaygain
INCLUDES = -I$(topdir)/include
OBJS = \
replaygain.o
include $(topdir)/build/lib.mk
# DO NOT DELETE THIS LINE -- make depend depends on it.
!include <win32.mak>
!IFDEF DEBUG
.c.obj:
$(cc) /D "_LIB" -DFLAC__NO_DLL /GX $(cdebug) $(cflags) /I "..\..\..\include" -DSTRICT -YX /Od /D "_DEBUG" $<
!else
.c.obj:
$(cc) /D "_LIB" -DFLAC__NO_DLL /O2 $(crelease) $(cflags) /I "..\..\..\include" -DSTRICT -YX -DNODEBUG $<
!endif
C_FILES= \
replaygain.c \
OBJS= $(C_FILES:.c=.obj)
all: replaygain.lib
replaygain.lib: $(OBJS)
link.exe -lib /nodefaultlib -out:../../../obj/lib/$*.lib $(OBJS)
clean:
-del *.obj *.pch
-del ..\..\..\obj\lib\replaygain.lib ..\..\..\obj\lib\replaygain.pdb
/* replaygain - Convenience lib for calculating/storing ReplayGain in FLAC
* Copyright (C) 2002 Josh Coalson
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include "share/replaygain.h"
#include "share/gain_analysis.h"
#include "FLAC/assert.h"
#include "FLAC/format.h"
#ifdef local_min
#undef local_min
#endif
#define local_min(a,b) ((a)<(b)?(a):(b))
REPLAYGAIN_API FLAC__bool FLAC__replaygain_init(unsigned sample_frequency)
{
return InitGainAnalysis((long)sample_frequency) == INIT_GAIN_ANALYSIS_OK;
}
REPLAYGAIN_API FLAC__bool FLAC__replaygain_analyze(const FLAC__int32 * const input[], FLAC__bool is_stereo, unsigned bps, unsigned samples)
{
static Float_t lbuffer[4096], rbuffer[4096];
static const unsigned nbuffer = sizeof(lbuffer) / sizeof(lbuffer[0]);
unsigned i;
FLAC__ASSERT(bps >= 4 && bps <= 32);
FLAC__ASSERT(FLAC__MIN_BITS_PER_SAMPLE == 4);
FLAC__ASSERT(FLAC__MAX_BITS_PER_SAMPLE == 32);
if(bps == 16) {
if(is_stereo) {
while(samples > 0) {
const unsigned n = local_min(samples, nbuffer);
for(i = 0; i < n; i++) {
lbuffer[i] = (Float_t)input[0][i];
rbuffer[i] = (Float_t)input[1][i];
}
samples -= n;
if(AnalyzeSamples(lbuffer, rbuffer, n, 2) != GAIN_ANALYSIS_OK)
return false;
}
}
else {
while(samples > 0) {
const unsigned n = local_min(samples, nbuffer);
for(i = 0; i < n; i++)
lbuffer[i] = (Float_t)input[0][i];
samples -= n;
if(AnalyzeSamples(lbuffer, 0, n, 1) != GAIN_ANALYSIS_OK)
return false;
}
}
}
else {
const double scale = (
(bps > 16)?
(double)1. / (double)(1u << (bps - 16)) :
(double)(1u << (16 - bps))
);
if(is_stereo) {
while(samples > 0) {
const unsigned n = local_min(samples, nbuffer);
for(i = 0; i < n; i++) {
lbuffer[i] = (Float_t)(scale * (double)input[0][i]);
rbuffer[i] = (Float_t)(scale * (double)input[1][i]);
}
samples -= n;
if(AnalyzeSamples(lbuffer, rbuffer, n, 2) != GAIN_ANALYSIS_OK)
return false;
}
}
else {
while(samples > 0) {
const unsigned n = local_min(samples, nbuffer);
for(i = 0; i < n; i++)
lbuffer[i] = (Float_t)(scale * (double)input[0][i]);
samples -= n;
if(AnalyzeSamples(lbuffer, 0, n, 1) != GAIN_ANALYSIS_OK)
return false;
}
}
}
return true;
}
REPLAYGAIN_API float FLAC__replaygain_get_album_gain()
{
return GetAlbumGain();
}
REPLAYGAIN_API float FLAC__replaygain_get_title_gain()
{
return GetTitleGain();
}
# Microsoft Developer Studio Project File - Name="replaygain" - Package Owner=<4>
# Microsoft Developer Studio Generated Build File, Format Version 6.00
# ** DO NOT EDIT **
# TARGTYPE "Win32 (x86) Dynamic-Link Library" 0x0102
CFG=replaygain - Win32 Debug
!MESSAGE This is not a valid makefile. To build this project using NMAKE,
!MESSAGE use the Export Makefile command and run
!MESSAGE
!MESSAGE NMAKE /f "replaygain.mak".
!MESSAGE
!MESSAGE You can specify a configuration when running NMAKE
!MESSAGE by defining the macro CFG on the command line. For example:
!MESSAGE
!MESSAGE NMAKE /f "replaygain.mak" CFG="replaygain - Win32 Debug"
!MESSAGE
!MESSAGE Possible choices for configuration are:
!MESSAGE
!MESSAGE "replaygain - Win32 Release" (based on "Win32 (x86) Dynamic-Link Library")
!MESSAGE "replaygain - Win32 Debug" (based on "Win32 (x86) Dynamic-Link Library")
!MESSAGE
# Begin Project
# PROP AllowPerConfigDependencies 0
# PROP Scc_ProjName "replaygain"
# PROP Scc_LocalPath "..\..\.."
CPP=cl.exe
MTL=midl.exe
RSC=rc.exe
!IF "$(CFG)" == "replaygain - Win32 Release"
# PROP BASE Use_MFC 0
# PROP BASE Use_Debug_Libraries 0
# PROP BASE Output_Dir "Release"
# PROP BASE Intermediate_Dir "Release"
# PROP BASE Target_Dir ""
# PROP Use_MFC 0
# PROP Use_Debug_Libraries 0
# PROP Output_Dir "..\..\..\obj\lib"
# PROP Intermediate_Dir "Release"
# PROP Ignore_Export_Lib 0
# PROP Target_Dir ""
# ADD BASE CPP /nologo /MT /W3 /GX /O2 /D "WIN32" /D "NDEBUG" /D "_WINDOWS" /YX /FD /c
# ADD CPP /nologo /MD /W3 /GR /GX /O2 /I ".\include" /I "..\..\..\include" /D "NDEBUG" /D "REPLAYGAIN_API_EXPORTS" /D "_WINDOWS" /D "_WINDLL" /D "WIN32" /D "_USRDLL" /FR /FD /c
# ADD BASE MTL /nologo /D "NDEBUG" /mktyplib203 /o "NUL" /win32
# ADD MTL /nologo /D "NDEBUG" /mktyplib203 /o "NUL" /win32
# ADD BASE RSC /l 0x409 /d "NDEBUG"
# ADD RSC /l 0x409 /d "NDEBUG" /d "_USRDLL"
BSC32=bscmake.exe
# ADD BASE BSC32 /nologo
# ADD BSC32 /nologo
LINK32=link.exe
# ADD BASE LINK32 kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /subsystem:windows /dll /machine:I386
# ADD LINK32 /nologo /subsystem:windows /dll /machine:I386 /out:"..\..\..\obj\bin/replaygain.dll"
!ELSEIF "$(CFG)" == "replaygain - Win32 Debug"
# PROP BASE Use_MFC 0
# PROP BASE Use_Debug_Libraries 1
# PROP BASE Output_Dir "Debug"
# PROP BASE Intermediate_Dir "Debug"
# PROP BASE Target_Dir ""
# PROP Use_MFC 0
# PROP Use_Debug_Libraries 1
# PROP Output_Dir "..\..\..\obj\lib"
# PROP Intermediate_Dir "Debug"
# PROP Ignore_Export_Lib 0
# PROP Target_Dir ""
# ADD BASE CPP /nologo /MTd /W3 /Gm /GX /Zi /Od /D "WIN32" /D "_DEBUG" /D "_WINDOWS" /YX /FD /c
# ADD CPP /nologo /MDd /W3 /Gm /GR /GX /ZI /Od /I ".\include" /I "..\..\..\include" /D "_DEBUG" /D "_CHATTER" /D "REPLAYGAIN_API_EXPORTS" /D "_WINDOWS" /D "_WINDLL" /D "WIN32" /D "_USRDLL" /FR /FD /c
# ADD BASE MTL /nologo /D "_DEBUG" /mktyplib203 /o "NUL" /win32
# ADD MTL /nologo /D "_DEBUG" /mktyplib203 /o "NUL" /win32
# ADD BASE RSC /l 0x409 /d "_DEBUG"
# ADD RSC /l 0x409 /d "_DEBUG" /d "_USRDLL"
BSC32=bscmake.exe
# ADD BASE BSC32 /nologo
# ADD BSC32 /nologo
LINK32=link.exe
# ADD BASE LINK32 kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /subsystem:windows /dll /debug /machine:I386 /pdbtype:sept
# ADD LINK32 /nologo /subsystem:windows /dll /debug /machine:I386 /out:"..\..\..\obj\bin/replaygain.dll" /pdbtype:sept
!ENDIF
# Begin Target
# Name "replaygain - Win32 Release"
# Name "replaygain - Win32 Debug"
# Begin Group "Source Files"
# PROP Default_Filter "cpp"
# Begin Source File
SOURCE=.\replaygain.c
# End Source File
# End Group
# Begin Group "Private Header Files"
# PROP Default_Filter ""
# End Group
# Begin Group "Protected Header Files"
# PROP Default_Filter ""
# End Group
# Begin Group "Public Header Files"
# PROP Default_Filter ""
# Begin Source File
SOURCE=..\..\..\include\share\replaygain.h
# End Source File
# End Group
# End Target
# End Project
Supports Markdown
0% or .
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment