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This commit is contained in:
Josh Coalson
2002-11-07 05:00:14 +00:00
parent 5e3fcb2603
commit 52d61b5839
7 changed files with 1035 additions and 0 deletions
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23
src/share/grabbag/Makefile.am Normal file
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## Process this file with automake to produce Makefile.in
AUTOMAKE_OPTIONS = foreign
INCLUDES = -I$(top_srcdir)/include
noinst_LIBRARIES = libgrabbag.a
libgrabbag_a_SOURCES = \
file.c \
replaygain.c \
seektable.c
EXTRA_DIST = \
Makefile.lite \
Makefile.vc \
grabbag.dsp
debug:
$(MAKE) all CFLAGS="@DEBUG@"
profile:
$(MAKE) all CFLAGS="@PROFILE@"

17
src/share/grabbag/Makefile.lite Normal file
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#
# GNU makefile
#
topdir = ../../..
LIB_NAME = libgrabbag
INCLUDES = -I$(topdir)/include
OBJS = \
file.o \
replaygain.o \
seektable.o
include $(topdir)/build/lib.mk
# DO NOT DELETE THIS LINE -- make depend depends on it.

25
src/share/grabbag/Makefile.vc Normal file
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!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= \
file.c \
replaygain.c \
seektable.c
OBJS= $(C_FILES:.c=.obj)
all: grabbag.lib
grabbag.lib: $(OBJS)
link.exe -lib /nodefaultlib -out:../../../obj/lib/$*.lib $(OBJS)
clean:
-del *.obj *.pch
-del ..\..\..\obj\lib\grabbag.lib ..\..\..\obj\lib\grabbag.pdb

142
src/share/grabbag/file.c Normal file
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/* grabbag - Convenience lib for various routines common to several tools
* 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.
*/
#if defined _MSC_VER || defined __MINGW32__
#include <sys/utime.h> /* for utime() */
#include <io.h> /* for chmod(), _setmode(), unlink() */
#include <fcntl.h> /* for _O_BINARY */
#else
#include <sys/types.h> /* some flavors of BSD (like OS X) require this to get time_t */
#include <utime.h> /* for utime() */
#endif
#ifdef __CYGWIN__
#include <io.h> /* for setmode(), O_BINARY */
#include <fcntl.h> /* for _O_BINARY */
#endif
#include <sys/stat.h> /* for stat(), maybe chmod() */
#if defined _WIN32 && !defined __CYGWIN__
#else
#include <unistd.h> /* for unlink() */
#endif
#include <stdio.h>
#include <stdlib.h>
#include <string.h> /* for strrchr() */
#include "share/grabbag.h"
GRABBAG_API void grabbag__file_copy_metadata(const char *srcpath, const char *destpath)
{
struct stat srcstat;
struct utimbuf srctime;
if(0 == stat(srcpath, &srcstat)) {
srctime.actime = srcstat.st_atime;
srctime.modtime = srcstat.st_mtime;
(void)chmod(destpath, srcstat.st_mode);
(void)utime(destpath, &srctime);
}
}
GRABBAG_API off_t grabbag__file_get_filesize(const char *srcpath)
{
struct stat srcstat;
if(0 == stat(srcpath, &srcstat))
return srcstat.st_size;
else
return -1;
}
GRABBAG_API const char *grabbag__file_get_basename(const char *srcpath)
{
const char *p;
p = strrchr(srcpath, '/');
if(0 == p) {
p = strrchr(srcpath, '\\');
if(0 == p)
return srcpath;
}
return ++p;
}
GRABBAG_API FLAC__bool grabbag__file_change_stats(const char *filename, FLAC__bool read_only)
{
struct stat stats;
if(0 == stat(filename, &stats)) {
#if !defined _MSC_VER && !defined __MINGW32__
if(read_only) {
stats.st_mode &= ~S_IWUSR;
stats.st_mode &= ~S_IWGRP;
stats.st_mode &= ~S_IWOTH;
}
else {
stats.st_mode |= S_IWUSR;
}
#else
if(read_only)
stats.st_mode &= ~S_IWRITE;
else
stats.st_mode |= S_IWRITE;
#endif
if(0 != chmod(filename, stats.st_mode))
return false;
}
else
return false;
return true;
}
GRABBAG_API FLAC__bool grabbag__file_remove_file(const char *filename)
{
return grabbag__file_change_stats(filename, /*read_only=*/false) && 0 == unlink(filename);
}
GRABBAG_API FILE *grabbag__file_get_binary_stdin()
{
/* if something breaks here it is probably due to the presence or
* absence of an underscore before the identifiers 'setmode',
* 'fileno', and/or 'O_BINARY'; check your system header files.
*/
#if defined _MSC_VER || defined __MINGW32__
_setmode(_fileno(stdin), _O_BINARY);
#elif defined __CYGWIN__
/* almost certainly not needed for any modern Cygwin, but let's be safe... */
setmode(_fileno(stdin), _O_BINARY);
#endif
return stdin;
}
GRABBAG_API FILE *grabbag__file_get_binary_stdout()
{
/* if something breaks here it is probably due to the presence or
* absence of an underscore before the identifiers 'setmode',
* 'fileno', and/or 'O_BINARY'; check your system header files.
*/
#if defined _MSC_VER || defined __MINGW32__
_setmode(_fileno(stdout), _O_BINARY);
#elif defined __CYGWIN__
/* almost certainly not needed for any modern Cygwin, but let's be safe... */
setmode(_fileno(stdout), _O_BINARY);
#endif
return stdout;
}

135
src/share/grabbag/grabbag.dsp Normal file
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# Microsoft Developer Studio Project File - Name="grabbag" - Package Owner=<4>
# Microsoft Developer Studio Generated Build File, Format Version 6.00
# ** DO NOT EDIT **
# TARGTYPE "Win32 (x86) Dynamic-Link Library" 0x0102
CFG=grabbag - 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 "grabbag.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 "grabbag.mak" CFG="grabbag - Win32 Debug"
!MESSAGE
!MESSAGE Possible choices for configuration are:
!MESSAGE
!MESSAGE "grabbag - Win32 Release" (based on "Win32 (x86) Dynamic-Link Library")
!MESSAGE "grabbag - Win32 Debug" (based on "Win32 (x86) Dynamic-Link Library")
!MESSAGE
# Begin Project
# PROP AllowPerConfigDependencies 0
# PROP Scc_ProjName "grabbag"
# PROP Scc_LocalPath "..\..\.."
CPP=cl.exe
MTL=midl.exe
RSC=rc.exe
!IF "$(CFG)" == "grabbag - Win32 Release"
# PROP BASE Use_MFC 0
# PROP BASE Use_Debug_Libraries 0
# PROP BASE Output_Dir "Release"
# PROP BASE Intermediate_Dir "Release"
# PROP BASE Target_Dir ""
# PROP Use_MFC 0
# PROP Use_Debug_Libraries 0
# PROP Output_Dir "..\..\..\obj\lib"
# PROP Intermediate_Dir "Release"
# PROP Ignore_Export_Lib 0
# PROP Target_Dir ""
# ADD BASE CPP /nologo /MT /W3 /GX /O2 /D "WIN32" /D "NDEBUG" /D "_WINDOWS" /YX /FD /c
# ADD CPP /nologo /MD /W3 /GR /GX /O2 /I ".\include" /I "..\..\..\include" /D "NDEBUG" /D "REPLAYGAIN_API_EXPORTS" /D "_WINDOWS" /D "_WINDLL" /D "WIN32" /D "_USRDLL" /FR /FD /c
# ADD BASE MTL /nologo /D "NDEBUG" /mktyplib203 /o "NUL" /win32
# ADD MTL /nologo /D "NDEBUG" /mktyplib203 /o "NUL" /win32
# ADD BASE RSC /l 0x409 /d "NDEBUG"
# ADD RSC /l 0x409 /d "NDEBUG" /d "_USRDLL"
BSC32=bscmake.exe
# ADD BASE BSC32 /nologo
# ADD BSC32 /nologo
LINK32=link.exe
# ADD BASE LINK32 kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /subsystem:windows /dll /machine:I386
# ADD LINK32 /nologo /subsystem:windows /dll /machine:I386 /out:"..\..\..\obj\bin/grabbag.dll"
!ELSEIF "$(CFG)" == "grabbag - 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/grabbag.dll" /pdbtype:sept
!ENDIF
# Begin Target
# Name "grabbag - Win32 Release"
# Name "grabbag - Win32 Debug"
# Begin Group "Source Files"
# PROP Default_Filter "c"
# Begin Source File
SOURCE=.\file.c
# End Source File
# Begin Source File
SOURCE=.\replaygain.c
# End Source File
# Begin Source File
SOURCE=.\seektable.c
# End Source File
# End Group
# Begin Group "Private Header Files"
# PROP Default_Filter ""
# Begin Source File
SOURCE=..\..\..\include\share\grabbag\file.h
# End Source File
# Begin Source File
SOURCE=..\..\..\include\share\grabbag\replaygain.h
# End Source File
# Begin Source File
SOURCE=..\..\..\include\share\grabbag\seektable.h
# End Source File
# 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\grabbag.h
# End Source File
# End Group
# End Target
# End Project

605
src/share/grabbag/replaygain.c Normal file
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/* grabbag - Convenience lib for various routines common to several tools
* 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/grabbag.h"
#include "share/gain_analysis.h"
#include "FLAC/assert.h"
#include "FLAC/file_decoder.h"
#include "FLAC/metadata.h"
#include <math.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#if defined _MSC_VER || defined __MINGW32__
#include <io.h> /* for chmod() */
#endif
#include <sys/stat.h> /* for stat(), maybe chmod() */
#ifdef local_min
#undef local_min
#endif
#define local_min(a,b) ((a)<(b)?(a):(b))
#ifdef local_max
#undef local_max
#endif
#define local_max(a,b) ((a)>(b)?(a):(b))
static const FLAC__byte *tag_title_gain_ = "REPLAYGAIN_TRACK_GAIN";
static const FLAC__byte *tag_title_peak_ = "REPLAYGAIN_TRACK_PEAK";
static const FLAC__byte *tag_album_gain_ = "REPLAYGAIN_ALBUM_GAIN";
static const FLAC__byte *tag_album_peak_ = "REPLAYGAIN_ALBUM_PEAK";
static const char *peak_format_ = "%s=%1.8f";
static const char *gain_format_ = "%s=%+2.2f dB";
static double album_peak_, title_peak_;
GRABBAG_API const unsigned GRABBAG__REPLAYGAIN_MAX_TAG_SPACE_REQUIRED = 148;
/*
FLAC__STREAM_METADATA_VORBIS_COMMENT_ENTRY_LENGTH_LEN/8 + 21 + 1 + 10 +
FLAC__STREAM_METADATA_VORBIS_COMMENT_ENTRY_LENGTH_LEN/8 + 21 + 1 + 12 +
FLAC__STREAM_METADATA_VORBIS_COMMENT_ENTRY_LENGTH_LEN/8 + 21 + 1 + 10 +
FLAC__STREAM_METADATA_VORBIS_COMMENT_ENTRY_LENGTH_LEN/8 + 21 + 1 + 12
*/
static FLAC__bool get_file_stats_(const char *filename, struct stat *stats)
{
FLAC__ASSERT(0 != filename);
FLAC__ASSERT(0 != stats);
return (0 == stat(filename, stats));
}
static void set_file_stats_(const char *filename, struct stat *stats)
{
FLAC__ASSERT(0 != filename);
FLAC__ASSERT(0 != stats);
(void)chmod(filename, stats->st_mode);
}
static FLAC__bool append_tag_(FLAC__StreamMetadata *block, const char *format, const FLAC__byte *name, float value)
{
char buffer[256];
FLAC__StreamMetadata_VorbisComment_Entry entry;
FLAC__ASSERT(0 != block);
FLAC__ASSERT(block->type == FLAC__METADATA_TYPE_VORBIS_COMMENT);
FLAC__ASSERT(0 != name);
FLAC__ASSERT(0 != value);
buffer[sizeof(buffer)-1] = '\0';
snprintf(buffer, sizeof(buffer)-1, format, name, value);
entry.entry = buffer;
entry.length = strlen(buffer);
return FLAC__metadata_object_vorbiscomment_insert_comment(block, block->data.vorbis_comment.num_comments, entry, /*copy=*/true);
}
GRABBAG_API FLAC__bool grabbag__replaygain_is_valid_sample_frequency(unsigned sample_frequency)
{
static const unsigned valid_sample_rates[] = {
8000,
11025,
12000,
16000,
22050,
24000,
32000,
44100,
48000
};
static const unsigned n_valid_sample_rates = sizeof(valid_sample_rates) / sizeof(valid_sample_rates[0]);
unsigned i;
for(i = 0; i < n_valid_sample_rates; i++)
if(sample_frequency == valid_sample_rates[i])
return true;
return false;
}
GRABBAG_API FLAC__bool grabbag__replaygain_init(unsigned sample_frequency)
{
title_peak_ = album_peak_ = 0.0;
return InitGainAnalysis((long)sample_frequency) == INIT_GAIN_ANALYSIS_OK;
}
GRABBAG_API FLAC__bool grabbag__replaygain_analyze(const FLAC__int32 * const input[], FLAC__bool is_stereo, unsigned bps, unsigned samples)
{
/* using a small buffer improves data locality; we'd like it to fit easily in the dcache */
static Float_t lbuffer[2048], rbuffer[2048];
static const unsigned nbuffer = sizeof(lbuffer) / sizeof(lbuffer[0]);
FLAC__int32 block_peak = 0, s;
unsigned i, j;
FLAC__ASSERT(bps >= 4 && bps <= FLAC__REFERENCE_CODEC_MAX_BITS_PER_SAMPLE);
FLAC__ASSERT(FLAC__MIN_BITS_PER_SAMPLE == 4);
/*
* We use abs() on a FLAC__int32 which is undefined for the most negative value.
* If the reference codec ever handles 32bps we will have to write a special
* case here.
*/
FLAC__ASSERT(FLAC__REFERENCE_CODEC_MAX_BITS_PER_SAMPLE < 32);
if(bps == 16) {
if(is_stereo) {
j = 0;
while(samples > 0) {
const unsigned n = local_min(samples, nbuffer);
for(i = 0; i < n; i++, j++) {
s = input[0][j];
lbuffer[i] = (Float_t)s;
s = abs(s);
block_peak = local_max(block_peak, s);
s = input[1][j];
rbuffer[i] = (Float_t)s;
s = abs(s);
block_peak = local_max(block_peak, s);
}
samples -= n;
if(AnalyzeSamples(lbuffer, rbuffer, n, 2) != GAIN_ANALYSIS_OK)
return false;
}
}
else {
j = 0;
while(samples > 0) {
const unsigned n = local_min(samples, nbuffer);
for(i = 0; i < n; i++, j++) {
s = input[0][j];
lbuffer[i] = (Float_t)s;
s = abs(s);
block_peak = local_max(block_peak, s);
}
samples -= n;
if(AnalyzeSamples(lbuffer, 0, n, 1) != GAIN_ANALYSIS_OK)
return false;
}
}
}
else { /* bps must be < 32 according to above assertion */
const double scale = (
(bps > 16)?
(double)1. / (double)(1u << (bps - 16)) :
(double)(1u << (16 - bps))
);
if(is_stereo) {
j = 0;
while(samples > 0) {
const unsigned n = local_min(samples, nbuffer);
for(i = 0; i < n; i++, j++) {
s = input[0][j];
lbuffer[i] = (Float_t)(scale * (double)s);
s = abs(s);
block_peak = local_max(block_peak, s);
s = input[1][j];
rbuffer[i] = (Float_t)(scale * (double)s);
s = abs(s);
block_peak = local_max(block_peak, s);
}
samples -= n;
if(AnalyzeSamples(lbuffer, rbuffer, n, 2) != GAIN_ANALYSIS_OK)
return false;
}
}
else {
j = 0;
while(samples > 0) {
const unsigned n = local_min(samples, nbuffer);
for(i = 0; i < n; i++, j++) {
s = input[0][j];
lbuffer[i] = (Float_t)(scale * (double)s);
s = abs(s);
block_peak = local_max(block_peak, s);
}
samples -= n;
if(AnalyzeSamples(lbuffer, 0, n, 1) != GAIN_ANALYSIS_OK)
return false;
}
}
}
{
const double peak_scale = (double)(1u << (bps - 1));
double peak = (double)block_peak / peak_scale;
if(peak > title_peak_)
title_peak_ = peak;
if(peak > album_peak_)
album_peak_ = peak;
}
return true;
}
GRABBAG_API void grabbag__replaygain_get_album(float *gain, float *peak)
{
*gain = (float)GetAlbumGain();
*peak = (float)album_peak_;
album_peak_ = 0.0;
}
GRABBAG_API void grabbag__replaygain_get_title(float *gain, float *peak)
{
*gain = (float)GetTitleGain();
*peak = (float)title_peak_;
title_peak_ = 0.0;
}
typedef struct {
unsigned channels;
unsigned bits_per_sample;
unsigned sample_rate;
FLAC__bool error;
} DecoderInstance;
static FLAC__StreamDecoderWriteStatus write_callback_(const FLAC__FileDecoder *decoder, const FLAC__Frame *frame, const FLAC__int32 * const buffer[], void *client_data)
{
DecoderInstance *instance = (DecoderInstance*)client_data;
const unsigned bits_per_sample = frame->header.bits_per_sample;
const unsigned channels = frame->header.channels;
const unsigned sample_rate = frame->header.sample_rate;
const unsigned samples = frame->header.blocksize;
(void)decoder;
if(
!instance->error &&
(channels == 2 || channels == 1) &&
bits_per_sample == instance->bits_per_sample &&
channels == instance->channels &&
sample_rate == instance->sample_rate
) {
instance->error = !grabbag__replaygain_analyze(buffer, channels==2, bits_per_sample, samples);
}
else {
instance->error = true;
}
if(!instance->error)
return FLAC__STREAM_DECODER_WRITE_STATUS_CONTINUE;
else
return FLAC__STREAM_DECODER_WRITE_STATUS_ABORT;
}
static void metadata_callback_(const FLAC__FileDecoder *decoder, const FLAC__StreamMetadata *metadata, void *client_data)
{
DecoderInstance *instance = (DecoderInstance*)client_data;
(void)decoder;
if(metadata->type == FLAC__METADATA_TYPE_STREAMINFO) {
instance->bits_per_sample = metadata->data.stream_info.bits_per_sample;
instance->channels = metadata->data.stream_info.channels;
instance->sample_rate = metadata->data.stream_info.sample_rate;
if(instance->channels != 1 && instance->channels != 2) {
instance->error = true;
return;
}
if(!grabbag__replaygain_is_valid_sample_frequency(instance->sample_rate)) {
instance->error = true;
return;
}
}
}
static void error_callback_(const FLAC__FileDecoder *decoder, FLAC__StreamDecoderErrorStatus status, void *client_data)
{
DecoderInstance *instance = (DecoderInstance*)client_data;
(void)decoder, (void)status;
instance->error = true;
}
GRABBAG_API const char *grabbag__replaygain_analyze_file(const char *filename, float *title_gain, float *title_peak)
{
DecoderInstance instance;
FLAC__FileDecoder *decoder = FLAC__file_decoder_new();
if(0 == decoder)
return "memory allocation error";
instance.error = false;
/* It does these three by default but lets be explicit: */
FLAC__file_decoder_set_md5_checking(decoder, false);
FLAC__file_decoder_set_metadata_ignore_all(decoder);
FLAC__file_decoder_set_metadata_respond(decoder, FLAC__METADATA_TYPE_STREAMINFO);
FLAC__file_decoder_set_filename(decoder, filename);
FLAC__file_decoder_set_write_callback(decoder, write_callback_);
FLAC__file_decoder_set_metadata_callback(decoder, metadata_callback_);
FLAC__file_decoder_set_error_callback(decoder, error_callback_);
FLAC__file_decoder_set_client_data(decoder, &instance);
if(FLAC__file_decoder_init(decoder) != FLAC__FILE_DECODER_OK) {
FLAC__file_decoder_delete(decoder);
return "initializing decoder";
}
if(!FLAC__file_decoder_process_until_end_of_file(decoder) || instance.error) {
FLAC__file_decoder_delete(decoder);
return "decoding file";
}
FLAC__file_decoder_delete(decoder);
grabbag__replaygain_get_title(title_gain, title_peak);
return 0;
}
GRABBAG_API const char *grabbag__replaygain_store_to_vorbiscomment(FLAC__StreamMetadata *block, float album_gain, float album_peak, float title_gain, float title_peak)
{
const char *error;
if(0 != (error = grabbag__replaygain_store_to_vorbiscomment_title(block, title_gain, title_peak)))
return error;
if(0 != (error = grabbag__replaygain_store_to_vorbiscomment_album(block, album_gain, album_peak)))
return error;
return 0;
}
GRABBAG_API const char *grabbag__replaygain_store_to_vorbiscomment_album(FLAC__StreamMetadata *block, float album_gain, float album_peak)
{
FLAC__ASSERT(0 != block);
FLAC__ASSERT(block->type == FLAC__METADATA_TYPE_VORBIS_COMMENT);
if(
FLAC__metadata_object_vorbiscomment_remove_entries_matching(block, tag_album_gain_) < 0 ||
FLAC__metadata_object_vorbiscomment_remove_entries_matching(block, tag_album_peak_) < 0
)
return "memory allocation error";
if(
!append_tag_(block, peak_format_, tag_album_peak_, album_peak) ||
!append_tag_(block, gain_format_, tag_album_gain_, album_gain)
)
return "memory allocation error";
return 0;
}
GRABBAG_API const char *grabbag__replaygain_store_to_vorbiscomment_title(FLAC__StreamMetadata *block, float title_gain, float title_peak)
{
FLAC__ASSERT(0 != block);
FLAC__ASSERT(block->type == FLAC__METADATA_TYPE_VORBIS_COMMENT);
if(
FLAC__metadata_object_vorbiscomment_remove_entries_matching(block, tag_title_gain_) < 0 ||
FLAC__metadata_object_vorbiscomment_remove_entries_matching(block, tag_title_peak_) < 0
)
return "memory allocation error";
if(
!append_tag_(block, peak_format_, tag_title_peak_, title_peak) ||
!append_tag_(block, gain_format_, tag_title_gain_, title_gain)
)
return "memory allocation error";
return 0;
}
static const char *store_to_file_pre_(const char *filename, FLAC__Metadata_Chain **chain, FLAC__StreamMetadata **block)
{
FLAC__Metadata_Iterator *iterator;
const char *error;
FLAC__bool found_vc_block = false;
if(0 == (*chain = FLAC__metadata_chain_new()))
return "memory allocation error";
if(!FLAC__metadata_chain_read(*chain, filename)) {
error = FLAC__Metadata_ChainStatusString[FLAC__metadata_chain_status(*chain)];
FLAC__metadata_chain_delete(*chain);
return error;
}
if(0 == (iterator = FLAC__metadata_iterator_new())) {
FLAC__metadata_chain_delete(*chain);
return "memory allocation error";
}
FLAC__metadata_iterator_init(iterator, *chain);
do {
*block = FLAC__metadata_iterator_get_block(iterator);
if((*block)->type == FLAC__METADATA_TYPE_VORBIS_COMMENT)
found_vc_block = true;
} while(!found_vc_block && FLAC__metadata_iterator_next(iterator));
if(!found_vc_block) {
/* create a new block */
*block = FLAC__metadata_object_new(FLAC__METADATA_TYPE_VORBIS_COMMENT);
if(0 == *block) {
FLAC__metadata_chain_delete(*chain);
FLAC__metadata_iterator_delete(iterator);
return "memory allocation error";
}
while(FLAC__metadata_iterator_next(iterator))
;
if(!FLAC__metadata_iterator_insert_block_after(iterator, *block)) {
error = FLAC__Metadata_ChainStatusString[FLAC__metadata_chain_status(*chain)];
FLAC__metadata_chain_delete(*chain);
FLAC__metadata_iterator_delete(iterator);
return error;
}
/* iterator is left pointing to new block */
FLAC__ASSERT(FLAC__metadata_iterator_get_block(iterator) == *block);
}
FLAC__metadata_iterator_delete(iterator);
FLAC__ASSERT(0 != *block);
FLAC__ASSERT((*block)->type == FLAC__METADATA_TYPE_VORBIS_COMMENT);
return 0;
}
static const char *store_to_file_post_(const char *filename, FLAC__Metadata_Chain *chain, FLAC__bool preserve_modtime)
{
struct stat stats;
const FLAC__bool have_stats = get_file_stats_(filename, &stats);
(void)grabbag__file_change_stats(filename, /*read_only=*/false);
FLAC__metadata_chain_sort_padding(chain);
if(!FLAC__metadata_chain_write(chain, /*use_padding=*/true, preserve_modtime)) {
FLAC__metadata_chain_delete(chain);
return FLAC__Metadata_ChainStatusString[FLAC__metadata_chain_status(chain)];
}
FLAC__metadata_chain_delete(chain);
if(have_stats)
set_file_stats_(filename, &stats);
return 0;
}
GRABBAG_API 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)
{
FLAC__Metadata_Chain *chain;
FLAC__StreamMetadata *block;
const char *error;
if(0 != (error = store_to_file_pre_(filename, &chain, &block)))
return error;
if(0 != (error = grabbag__replaygain_store_to_vorbiscomment(block, album_gain, album_peak, title_gain, title_peak))) {
FLAC__metadata_chain_delete(chain);
return error;
}
if(0 != (error = store_to_file_post_(filename, chain, preserve_modtime)))
return error;
return 0;
}
GRABBAG_API const char *grabbag__replaygain_store_to_file_album(const char *filename, float album_gain, float album_peak, FLAC__bool preserve_modtime)
{
FLAC__Metadata_Chain *chain;
FLAC__StreamMetadata *block;
const char *error;
if(0 != (error = store_to_file_pre_(filename, &chain, &block)))
return error;
if(0 != (error = grabbag__replaygain_store_to_vorbiscomment_album(block, album_gain, album_peak))) {
FLAC__metadata_chain_delete(chain);
return error;
}
if(0 != (error = store_to_file_post_(filename, chain, preserve_modtime)))
return error;
return 0;
}
GRABBAG_API const char *grabbag__replaygain_store_to_file_title(const char *filename, float title_gain, float title_peak, FLAC__bool preserve_modtime)
{
FLAC__Metadata_Chain *chain;
FLAC__StreamMetadata *block;
const char *error;
if(0 != (error = store_to_file_pre_(filename, &chain, &block)))
return error;
if(0 != (error = grabbag__replaygain_store_to_vorbiscomment_title(block, title_gain, title_peak))) {
FLAC__metadata_chain_delete(chain);
return error;
}
if(0 != (error = store_to_file_post_(filename, chain, preserve_modtime)))
return error;
return 0;
}
static FLAC__bool parse_double_(const FLAC__StreamMetadata_VorbisComment_Entry *entry, double *val)
{
char s[32], *end;
const char *p, *q;
double v;
FLAC__ASSERT(0 != entry);
FLAC__ASSERT(0 != val);
fprintf(stderr,"@@@@ tag=[");fwrite(entry->entry,1,entry->length,stderr);fprintf(stderr,"]\n");
p = (const char *)entry->entry;
q = strchr(p, '=');
if(0 == q)
return false;
q++;
memset(s, 0, sizeof(s)-1);
strncpy(s, q, local_min(sizeof(s)-1, entry->length - (q-p)));
fprintf(stderr,"@@@@ s=[%s]\n",s);
v = strtod(s, &end);
if(end == s)
return false;
*val = v;
fprintf(stderr,"@@@@ v=[%0.12f]\n",v);
return true;
}
GRABBAG_API FLAC__bool grabbag__replaygain_load_from_vorbiscomment(const FLAC__StreamMetadata *block, FLAC__bool album_mode, double *gain, double *peak)
{
int gain_offset, peak_offset;
FLAC__ASSERT(0 != block);
FLAC__ASSERT(block->type == FLAC__METADATA_TYPE_VORBIS_COMMENT);
if(0 > (gain_offset = FLAC__metadata_object_vorbiscomment_find_entry_from(block, /*offset=*/0, album_mode? tag_album_gain_ : tag_title_gain_)))
return false;
if(0 > (peak_offset = FLAC__metadata_object_vorbiscomment_find_entry_from(block, /*offset=*/0, album_mode? tag_album_peak_ : tag_title_peak_)))
return false;
if(!parse_double_(block->data.vorbis_comment.comments + gain_offset, gain))
return false;
if(!parse_double_(block->data.vorbis_comment.comments + peak_offset, peak))
return false;
return true;
}
GRABBAG_API double grabbag__replaygain_compute_scale_factor(double peak, double gain, double preamp, FLAC__bool prevent_clipping)
{
double scale;
FLAC__ASSERT(peak >= 0.0);
gain += preamp;
scale = (float) pow(10.0, gain * 0.05);
if(prevent_clipping && peak > 0.0) {
const double max_scale = (float)(1.0 / peak);
if(scale > max_scale)
scale = max_scale;
}
return scale;
}

88
src/share/grabbag/seektable.c Normal file
View File

@@ -0,0 +1,88 @@
/* grabbag - Convenience lib for various routines common to several tools
* 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/grabbag.h"
#include "FLAC/assert.h"
#include <stdlib.h> /* for atoi() */
#include <string.h>
GRABBAG_API FLAC__bool grabbag__seektable_convert_specification_to_template(const char *spec, FLAC__bool only_explicit_placeholders, FLAC__uint64 total_samples_to_encode, unsigned sample_rate, FLAC__StreamMetadata *seektable_template, FLAC__bool *spec_has_real_points)
{
unsigned i;
const char *pt;
FLAC__ASSERT(0 != spec);
FLAC__ASSERT(0 != seektable_template);
FLAC__ASSERT(seektable_template->type = FLAC__METADATA_TYPE_SEEKTABLE);
if(0 != spec_has_real_points)
*spec_has_real_points = false;
for(pt = spec, i = 0; pt && *pt; i++) {
const char *q = strchr(pt, ';');
FLAC__ASSERT(0 != q);
if(q > pt) {
if(0 == strncmp(pt, "X;", 2)) { /* -S X */
if(!FLAC__metadata_object_seektable_template_append_placeholders(seektable_template, 1))
return false;
}
else if(q[-1] == 'x') { /* -S #x */
if(total_samples_to_encode > 0) { /* we can only do these if we know the number of samples to encode up front */
if(0 != spec_has_real_points)
*spec_has_real_points = true;
if(!only_explicit_placeholders) {
if(!FLAC__metadata_object_seektable_template_append_spaced_points(seektable_template, atoi(pt), total_samples_to_encode))
return false;
}
}
}
else if(q[-1] == 's') { /* -S #s */
if(total_samples_to_encode > 0) { /* we can only do these if we know the number of samples to encode up front */
FLAC__ASSERT(sample_rate > 0);
if(0 != spec_has_real_points)
*spec_has_real_points = true;
if(!only_explicit_placeholders) {
double sec = atof(pt);
if(sec > 0.0) {
unsigned n = (unsigned)((double)total_samples_to_encode / (sec * (double)sample_rate));
if(!FLAC__metadata_object_seektable_template_append_spaced_points(seektable_template, n, total_samples_to_encode))
return false;
}
}
}
}
else { /* -S # */
if(0 != spec_has_real_points)
*spec_has_real_points = true;
if(!only_explicit_placeholders) {
FLAC__uint64 n = (unsigned)atoi(pt);
if(!FLAC__metadata_object_seektable_template_append_point(seektable_template, n))
return false;
}
}
}
pt = ++q;
}
if(!FLAC__metadata_object_seektable_template_sort(seektable_template, /*compact=*/true))
return false;
return true;
}