initial import

1f228161 · Josh Coalson · e7ff8fb7 · 1f228161 · 1f228161 · 1f228161
Commit 1f228161 authored Oct 25, 2002 by Josh Coalson
--- a/include/share/gain_analysis.h
+++ b/include/share/gain_analysis.h
+/*
+ *  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 */
--- a/include/share/replaygain.h
+++ b/include/share/replaygain.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
--- a/src/share/replaygain/Makefile.am
+++ b/src/share/replaygain/Makefile.am
+## 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:
+	$(MAKE) all CFLAGS="@PROFILE@"
--- a/src/share/replaygain/Makefile.lite
+++ b/src/share/replaygain/Makefile.lite
+#
+# GNU makefile
+#
+
+topdir = ../../..
+
+LIB_NAME = libreplaygain
+INCLUDES = -I$(topdir)/include
+
+OBJS = \
+	replaygain.o
+
+include $(topdir)/build/lib.mk
+
+# DO NOT DELETE THIS LINE -- make depend depends on it.
--- a/src/share/replaygain/Makefile.vc
+++ b/src/share/replaygain/Makefile.vc
+!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
--- a/src/share/replaygain/replaygain.c
+++ b/src/share/replaygain/replaygain.c
+/* 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();
+}
--- a/src/share/replaygain/replaygain.dsp
+++ b/src/share/replaygain/replaygain.dsp
+# 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