Files
foobar2000-sdk/foobar2000/SDK/file_info.cpp
2021-12-14 00:28:25 -07:00

770 lines
23 KiB
C++

#include "foobar2000.h"
#ifndef _MSC_VER
#define strcat_s strcat
#define _atoi64 atoll
#endif
const float replaygain_info::peak_invalid = -1;
const float replaygain_info::gain_invalid = -1000;
t_size file_info::meta_find_ex(const char * p_name,t_size p_name_length) const
{
t_size n, m = meta_get_count();
for(n=0;n<m;n++)
{
if (pfc::stricmp_ascii_ex(meta_enum_name(n),pfc_infinite,p_name,p_name_length) == 0) return n;
}
return pfc_infinite;
}
bool file_info::meta_exists_ex(const char * p_name,t_size p_name_length) const
{
return meta_find_ex(p_name,p_name_length) != pfc_infinite;
}
void file_info::meta_remove_field_ex(const char * p_name,t_size p_name_length)
{
t_size index = meta_find_ex(p_name,p_name_length);
if (index!=pfc_infinite) meta_remove_index(index);
}
void file_info::meta_remove_index(t_size p_index)
{
meta_remove_mask(pfc::bit_array_one(p_index));
}
void file_info::meta_remove_all()
{
meta_remove_mask(pfc::bit_array_true());
}
void file_info::meta_remove_value(t_size p_index,t_size p_value)
{
meta_remove_values(p_index, pfc::bit_array_one(p_value));
}
t_size file_info::meta_get_count_by_name_ex(const char * p_name,t_size p_name_length) const
{
t_size index = meta_find_ex(p_name,p_name_length);
if (index == pfc_infinite) return 0;
return meta_enum_value_count(index);
}
t_size file_info::info_find_ex(const char * p_name,t_size p_name_length) const
{
t_size n, m = info_get_count();
for(n=0;n<m;n++) {
if (pfc::stricmp_ascii_ex(info_enum_name(n),pfc_infinite,p_name,p_name_length) == 0) return n;
}
return pfc_infinite;
}
bool file_info::info_exists_ex(const char * p_name,t_size p_name_length) const
{
return info_find_ex(p_name,p_name_length) != pfc_infinite;
}
void file_info::info_remove_index(t_size p_index)
{
info_remove_mask(pfc::bit_array_one(p_index));
}
void file_info::info_remove_all()
{
info_remove_mask(pfc::bit_array_true());
}
bool file_info::info_remove_ex(const char * p_name,t_size p_name_length)
{
t_size index = info_find_ex(p_name,p_name_length);
if (index != pfc_infinite)
{
info_remove_index(index);
return true;
}
else return false;
}
void file_info::overwrite_meta(const file_info & p_source) {
const t_size total = p_source.meta_get_count();
for(t_size walk = 0; walk < total; ++walk) {
copy_meta_single(p_source, walk);
}
}
void file_info::copy_meta_single(const file_info & p_source,t_size p_index)
{
copy_meta_single_rename(p_source,p_index,p_source.meta_enum_name(p_index));
}
void file_info::copy_meta_single_nocheck(const file_info & p_source,t_size p_index)
{
const char * name = p_source.meta_enum_name(p_index);
t_size n, m = p_source.meta_enum_value_count(p_index);
t_size new_index = pfc_infinite;
for(n=0;n<m;n++)
{
const char * value = p_source.meta_enum_value(p_index,n);
if (n == 0) new_index = meta_set_nocheck(name,value);
else meta_add_value(new_index,value);
}
}
void file_info::copy_meta_single_by_name_ex(const file_info & p_source,const char * p_name,t_size p_name_length)
{
t_size index = p_source.meta_find_ex(p_name,p_name_length);
if (index != pfc_infinite) copy_meta_single(p_source,index);
}
void file_info::copy_info_single_by_name_ex(const file_info & p_source,const char * p_name,t_size p_name_length)
{
t_size index = p_source.info_find_ex(p_name,p_name_length);
if (index != pfc_infinite) copy_info_single(p_source,index);
}
void file_info::copy_meta_single_by_name_nocheck_ex(const file_info & p_source,const char * p_name,t_size p_name_length)
{
t_size index = p_source.meta_find_ex(p_name,p_name_length);
if (index != pfc_infinite) copy_meta_single_nocheck(p_source,index);
}
void file_info::copy_info_single_by_name_nocheck_ex(const file_info & p_source,const char * p_name,t_size p_name_length)
{
t_size index = p_source.info_find_ex(p_name,p_name_length);
if (index != pfc_infinite) copy_info_single_nocheck(p_source,index);
}
void file_info::copy_info_single(const file_info & p_source,t_size p_index)
{
info_set(p_source.info_enum_name(p_index),p_source.info_enum_value(p_index));
}
void file_info::copy_info_single_nocheck(const file_info & p_source,t_size p_index)
{
info_set_nocheck(p_source.info_enum_name(p_index),p_source.info_enum_value(p_index));
}
void file_info::copy_meta(const file_info & p_source)
{
if (&p_source != this) {
meta_remove_all();
t_size n, m = p_source.meta_get_count();
for(n=0;n<m;n++)
copy_meta_single_nocheck(p_source,n);
}
}
void file_info::copy_info(const file_info & p_source)
{
if (&p_source != this) {
info_remove_all();
t_size n, m = p_source.info_get_count();
for(n=0;n<m;n++)
copy_info_single_nocheck(p_source,n);
}
}
void file_info::copy(const file_info & p_source)
{
if (&p_source != this) {
copy_meta(p_source);
copy_info(p_source);
set_length(p_source.get_length());
set_replaygain(p_source.get_replaygain());
}
}
const char * file_info::meta_get_ex(const char * p_name,t_size p_name_length,t_size p_index) const
{
t_size index = meta_find_ex(p_name,p_name_length);
if (index == pfc_infinite) return 0;
t_size max = meta_enum_value_count(index);
if (p_index >= max) return 0;
return meta_enum_value(index,p_index);
}
const char * file_info::info_get_ex(const char * p_name,t_size p_name_length) const
{
t_size index = info_find_ex(p_name,p_name_length);
if (index == pfc_infinite) return 0;
return info_enum_value(index);
}
t_int64 file_info::info_get_int(const char * name) const
{
PFC_ASSERT(pfc::is_valid_utf8(name));
const char * val = info_get(name);
if (val==0) return 0;
return _atoi64(val);
}
t_int64 file_info::info_get_length_samples() const
{
t_int64 ret = 0;
double len = get_length();
t_int64 srate = info_get_int("samplerate");
if (srate>0 && len>0)
{
ret = audio_math::time_to_samples(len,(unsigned)srate);
}
return ret;
}
double file_info::info_get_float(const char * name) const
{
const char * ptr = info_get(name);
if (ptr) return pfc::string_to_float(ptr);
else return 0;
}
void file_info::info_set_int(const char * name,t_int64 value)
{
PFC_ASSERT(pfc::is_valid_utf8(name));
info_set(name,pfc::format_int(value));
}
void file_info::info_set_float(const char * name,double value,unsigned precision,bool force_sign,const char * unit)
{
PFC_ASSERT(pfc::is_valid_utf8(name));
PFC_ASSERT(unit==0 || strlen(unit) <= 64);
char temp[128];
pfc::float_to_string(temp,64,value,precision,force_sign);
temp[63] = 0;
if (unit)
{
strcat_s(temp," ");
strcat_s(temp,unit);
}
info_set(name,temp);
}
void file_info::info_set_replaygain_album_gain(float value)
{
replaygain_info temp = get_replaygain();
temp.m_album_gain = value;
set_replaygain(temp);
}
void file_info::info_set_replaygain_album_peak(float value)
{
replaygain_info temp = get_replaygain();
temp.m_album_peak = value;
set_replaygain(temp);
}
void file_info::info_set_replaygain_track_gain(float value)
{
replaygain_info temp = get_replaygain();
temp.m_track_gain = value;
set_replaygain(temp);
}
void file_info::info_set_replaygain_track_peak(float value)
{
replaygain_info temp = get_replaygain();
temp.m_track_peak = value;
set_replaygain(temp);
}
static bool is_valid_bps(t_int64 val)
{
return val>0 && val<=256;
}
unsigned file_info::info_get_decoded_bps() const
{
t_int64 val = info_get_int("decoded_bitspersample");
if (is_valid_bps(val)) return (unsigned)val;
val = info_get_int("bitspersample");
if (is_valid_bps(val)) return (unsigned)val;
return 0;
}
void file_info::reset()
{
info_remove_all();
meta_remove_all();
set_length(0);
reset_replaygain();
}
void file_info::reset_replaygain()
{
replaygain_info temp;
temp.reset();
set_replaygain(temp);
}
void file_info::copy_meta_single_rename_ex(const file_info & p_source,t_size p_index,const char * p_new_name,t_size p_new_name_length)
{
t_size n, m = p_source.meta_enum_value_count(p_index);
t_size new_index = pfc_infinite;
for(n=0;n<m;n++)
{
const char * value = p_source.meta_enum_value(p_index,n);
if (n == 0) new_index = meta_set_ex(p_new_name,p_new_name_length,value,pfc_infinite);
else meta_add_value(new_index,value);
}
}
t_size file_info::meta_add_ex(const char * p_name,t_size p_name_length,const char * p_value,t_size p_value_length)
{
t_size index = meta_find_ex(p_name,p_name_length);
if (index == pfc_infinite) return meta_set_nocheck_ex(p_name,p_name_length,p_value,p_value_length);
else
{
meta_add_value_ex(index,p_value,p_value_length);
return index;
}
}
void file_info::meta_add_value_ex(t_size p_index,const char * p_value,t_size p_value_length)
{
meta_insert_value_ex(p_index,meta_enum_value_count(p_index),p_value,p_value_length);
}
t_size file_info::meta_calc_total_value_count() const
{
t_size n, m = meta_get_count(), ret = 0;
for(n=0;n<m;n++) ret += meta_enum_value_count(n);
return ret;
}
bool file_info::info_set_replaygain_ex(const char * p_name,t_size p_name_len,const char * p_value,t_size p_value_len)
{
replaygain_info temp = get_replaygain();
if (temp.set_from_meta_ex(p_name,p_name_len,p_value,p_value_len))
{
set_replaygain(temp);
return true;
}
else return false;
}
void file_info::info_set_replaygain_auto_ex(const char * p_name,t_size p_name_len,const char * p_value,t_size p_value_len)
{
if (!info_set_replaygain_ex(p_name,p_name_len,p_value,p_value_len))
info_set_ex(p_name,p_name_len,p_value,p_value_len);
}
static bool _matchGain(float g1, float g2) {
if (g1 == replaygain_info::gain_invalid && g2 == replaygain_info::gain_invalid) return true;
else if (g1 == replaygain_info::gain_invalid || g2 == replaygain_info::gain_invalid) return false;
else return fabs(g1-g2) < 0.1;
}
static bool _matchPeak(float p1, float p2) {
if (p1 == replaygain_info::peak_invalid && p2 == replaygain_info::peak_invalid) return true;
else if (p1 == replaygain_info::peak_invalid || p2 == replaygain_info::peak_invalid) return false;
else return fabs(p1-p2) < 0.01;
}
bool replaygain_info::g_equalLoose( const replaygain_info & i1, const replaygain_info & i2) {
return _matchGain(i1.m_track_gain, i2.m_track_gain) && _matchGain(i1.m_album_gain, i2.m_album_gain) && _matchPeak(i1.m_track_peak, i2.m_track_peak) && _matchPeak(i1.m_album_peak, i2.m_album_peak);
}
bool replaygain_info::g_equal(const replaygain_info & item1,const replaygain_info & item2)
{
return item1.m_album_gain == item2.m_album_gain &&
item1.m_track_gain == item2.m_track_gain &&
item1.m_album_peak == item2.m_album_peak &&
item1.m_track_peak == item2.m_track_peak;
}
bool file_info::are_meta_fields_identical(t_size p_index1,t_size p_index2) const
{
const t_size count = meta_enum_value_count(p_index1);
if (count != meta_enum_value_count(p_index2)) return false;
t_size n;
for(n=0;n<count;n++)
{
if (strcmp(meta_enum_value(p_index1,n),meta_enum_value(p_index2,n))) return false;
}
return true;
}
void file_info::meta_format_entry(t_size index, pfc::string_base & out, const char * separator) const {
out.reset();
t_size val, count = meta_enum_value_count(index);
PFC_ASSERT( count > 0);
for(val=0;val<count;val++)
{
if (val > 0) out += separator;
out += meta_enum_value(index,val);
}
}
bool file_info::meta_format(const char * p_name,pfc::string_base & p_out, const char * separator) const {
p_out.reset();
t_size index = meta_find(p_name);
if (index == pfc_infinite) return false;
meta_format_entry(index, p_out, separator);
return true;
}
void file_info::info_calculate_bitrate(t_filesize p_filesize,double p_length)
{
unsigned b = audio_math::bitrate_kbps( p_filesize, p_length );
if ( b > 0 ) info_set_bitrate(b);
}
bool file_info::is_encoding_overkill() const {
auto bs = info_get_int("bitspersample");
auto extra = info_get("bitspersample_extra");
if ( bs <= 24 ) return false; // fixedpoint up to 24bit, OK
if ( bs > 32 ) return true; // fixed or float beyond 32bit, overkill
if ( extra != nullptr ) {
if (strcmp(extra, "fixed-point") == 0) return true; // int32, overkill
}
return false;
}
bool file_info::is_encoding_lossy() const {
const char * encoding = info_get("encoding");
if (encoding != NULL) {
if (pfc::stricmp_ascii(encoding,"lossy") == 0 /*|| pfc::stricmp_ascii(encoding,"hybrid") == 0*/) return true;
} else {
//the old way
//disabled: don't whine if we're not sure what we're dealing with - might be a file with info not-yet-loaded in oddball cases or a mod file
//if (info_get("bitspersample") == NULL) return true;
}
return false;
}
bool file_info::g_is_meta_equal(const file_info & p_item1,const file_info & p_item2) {
const t_size count = p_item1.meta_get_count();
if (count != p_item2.meta_get_count()) {
//uDebugLog() << "meta count mismatch";
return false;
}
pfc::map_t<const char*,t_size,field_name_comparator> item2_meta_map;
for(t_size n=0; n<count; n++) {
item2_meta_map.set(p_item2.meta_enum_name(n),n);
}
for(t_size n1=0; n1<count; n1++) {
t_size n2;
if (!item2_meta_map.query(p_item1.meta_enum_name(n1),n2)) {
//uDebugLog() << "item2 doesn't have " << p_item1.meta_enum_name(n1);
return false;
}
t_size value_count = p_item1.meta_enum_value_count(n1);
if (value_count != p_item2.meta_enum_value_count(n2)) {
//uDebugLog() << "meta value count mismatch: " << p_item1.meta_enum_name(n1) << " : " << value_count << " vs " << p_item2.meta_enum_value_count(n2);
return false;
}
for(t_size v = 0; v < value_count; v++) {
if (strcmp(p_item1.meta_enum_value(n1,v),p_item2.meta_enum_value(n2,v)) != 0) {
//uDebugLog() << "meta mismatch: " << p_item1.meta_enum_name(n1) << " : " << p_item1.meta_enum_value(n1,v) << " vs " << p_item2.meta_enum_value(n2,v);
return false;
}
}
}
return true;
}
bool file_info::g_is_meta_equal_debug(const file_info & p_item1,const file_info & p_item2) {
const t_size count = p_item1.meta_get_count();
if (count != p_item2.meta_get_count()) {
FB2K_DebugLog() << "meta count mismatch";
return false;
}
pfc::map_t<const char*,t_size,field_name_comparator> item2_meta_map;
for(t_size n=0; n<count; n++) {
item2_meta_map.set(p_item2.meta_enum_name(n),n);
}
for(t_size n1=0; n1<count; n1++) {
t_size n2;
if (!item2_meta_map.query(p_item1.meta_enum_name(n1),n2)) {
FB2K_DebugLog() << "item2 doesn't have " << p_item1.meta_enum_name(n1);
return false;
}
t_size value_count = p_item1.meta_enum_value_count(n1);
if (value_count != p_item2.meta_enum_value_count(n2)) {
FB2K_DebugLog() << "meta value count mismatch: " << p_item1.meta_enum_name(n1) << " : " << (uint32_t)value_count << " vs " << (uint32_t)p_item2.meta_enum_value_count(n2);
return false;
}
for(t_size v = 0; v < value_count; v++) {
if (strcmp(p_item1.meta_enum_value(n1,v),p_item2.meta_enum_value(n2,v)) != 0) {
FB2K_DebugLog() << "meta mismatch: " << p_item1.meta_enum_name(n1) << " : " << p_item1.meta_enum_value(n1,v) << " vs " << p_item2.meta_enum_value(n2,v);
return false;
}
}
}
return true;
}
bool file_info::g_is_info_equal(const file_info & p_item1,const file_info & p_item2) {
t_size count = p_item1.info_get_count();
if (count != p_item2.info_get_count()) {
//uDebugLog() << "info count mismatch";
return false;
}
for(t_size n1=0; n1<count; n1++) {
t_size n2 = p_item2.info_find(p_item1.info_enum_name(n1));
if (n2 == pfc_infinite) {
//uDebugLog() << "item2 does not have " << p_item1.info_enum_name(n1);
return false;
}
if (strcmp(p_item1.info_enum_value(n1),p_item2.info_enum_value(n2)) != 0) {
//uDebugLog() << "value mismatch: " << p_item1.info_enum_name(n1);
return false;
}
}
return true;
}
static bool is_valid_field_name_char(char p_char) {
return p_char >= 32 && p_char < 127 && p_char != '=' && p_char != '%' && p_char != '<' && p_char != '>';
}
bool file_info::g_is_valid_field_name(const char * p_name,t_size p_length) {
t_size walk;
for(walk = 0; walk < p_length && p_name[walk] != 0; walk++) {
if (!is_valid_field_name_char(p_name[walk])) return false;
}
return walk > 0;
}
void file_info::to_formatter(pfc::string_formatter& out) const {
out << "File info dump:\n";
if (get_length() > 0) out<< "Duration: " << pfc::format_time_ex(get_length(), 6) << "\n";
pfc::string_formatter temp;
for(t_size metaWalk = 0; metaWalk < meta_get_count(); ++metaWalk) {
meta_format_entry(metaWalk, temp);
out << "Meta: " << meta_enum_name(metaWalk) << " = " << temp << "\n";
}
for(t_size infoWalk = 0; infoWalk < info_get_count(); ++infoWalk) {
out << "Info: " << info_enum_name(infoWalk) << " = " << info_enum_value(infoWalk) << "\n";
}
auto rg = this->get_replaygain();
replaygain_info::t_text_buffer rgbuf;
if (rg.format_track_gain(rgbuf)) out << "RG track gain: " << rgbuf << "\n";
if (rg.format_track_peak(rgbuf)) out << "RG track peak: " << rgbuf << "\n";
if (rg.format_album_gain(rgbuf)) out << "RG album gain: " << rgbuf << "\n";
if (rg.format_album_peak(rgbuf)) out << "RG album peak: " << rgbuf << "\n";
}
void file_info::to_console() const {
FB2K_console_formatter1() << "File info dump:";
if (get_length() > 0) FB2K_console_formatter() << "Duration: " << pfc::format_time_ex(get_length(), 6);
pfc::string_formatter temp;
for(t_size metaWalk = 0; metaWalk < meta_get_count(); ++metaWalk) {
const char * name = meta_enum_name( metaWalk );
const auto valCount = meta_enum_value_count( metaWalk );
for ( size_t valWalk = 0; valWalk < valCount; ++valWalk ) {
FB2K_console_formatter() << "Meta: " << name << " = " << meta_enum_value( metaWalk, valWalk );
}
/*
meta_format_entry(metaWalk, temp);
FB2K_console_formatter() << "Meta: " << meta_enum_name(metaWalk) << " = " << temp;
*/
}
for(t_size infoWalk = 0; infoWalk < info_get_count(); ++infoWalk) {
FB2K_console_formatter() << "Info: " << info_enum_name(infoWalk) << " = " << info_enum_value(infoWalk);
}
}
void file_info::info_set_wfx_chanMask(uint32_t val) {
switch(val) {
case 0:
case 4:
case 3:
break;
default:
info_set ("WAVEFORMATEXTENSIBLE_CHANNEL_MASK", PFC_string_formatter() << "0x" << pfc::format_hex(val) );
break;
}
}
uint32_t file_info::info_get_wfx_chanMask() const {
const char * str = this->info_get("WAVEFORMATEXTENSIBLE_CHANNEL_MASK");
if (str == NULL) return 0;
if (pfc::strcmp_partial( str, "0x") != 0) return 0;
try {
return pfc::atohex<uint32_t>( str + 2, strlen(str+2) );
} catch(...) { return 0;}
}
bool file_info::field_is_person(const char * fieldName) {
return field_name_equals(fieldName, "artist") ||
field_name_equals(fieldName, "album artist") ||
field_name_equals(fieldName, "composer") ||
field_name_equals(fieldName, "performer") ||
field_name_equals(fieldName, "conductor") ||
field_name_equals(fieldName, "orchestra") ||
field_name_equals(fieldName, "ensemble") ||
field_name_equals(fieldName, "engineer");
}
bool file_info::field_is_title(const char * fieldName) {
return field_name_equals(fieldName, "title") || field_name_equals(fieldName, "album");
}
void file_info::to_stream( stream_writer * stream, abort_callback & abort ) const {
stream_writer_formatter<> out(* stream, abort );
out << this->get_length();
{
const auto rg = this->get_replaygain();
out << rg.m_track_gain << rg.m_album_gain << rg.m_track_peak << rg.m_album_peak;
}
{
const uint32_t metaCount = pfc::downcast_guarded<uint32_t>( this->meta_get_count() );
for(uint32_t metaWalk = 0; metaWalk < metaCount; ++metaWalk) {
const char * name = this->meta_enum_name( metaWalk );
if (*name) {
out.write_string_nullterm( this->meta_enum_name( metaWalk ) );
const size_t valCount = this->meta_enum_value_count( metaWalk );
for(size_t valWalk = 0; valWalk < valCount; ++valWalk) {
const char * value = this->meta_enum_value( metaWalk, valWalk );
if (*value) {
out.write_string_nullterm( value );
}
}
out.write_int<char>(0);
}
}
out.write_int<char>(0);
}
{
const uint32_t infoCount = pfc::downcast_guarded<uint32_t>( this->info_get_count() );
for(uint32_t infoWalk = 0; infoWalk < infoCount; ++infoWalk) {
const char * name = this->info_enum_name( infoWalk );
const char * value = this->info_enum_value( infoWalk );
if (*name && *value) {
out.write_string_nullterm(name); out.write_string_nullterm(value);
}
}
out.write_int<char>(0);
}
}
void file_info::from_stream( stream_reader * stream, abort_callback & abort ) {
stream_reader_formatter<> in( *stream, abort );
pfc::string_formatter tempName, tempValue;
{
double len; in >> len; this->set_length( len );
}
{
replaygain_info rg;
in >> rg.m_track_gain >> rg.m_album_gain >> rg.m_track_peak >> rg.m_album_peak;
}
{
this->meta_remove_all();
for(;;) {
in.read_string_nullterm( tempName );
if (tempName.length() == 0) break;
size_t metaIndex = pfc_infinite;
for(;;) {
in.read_string_nullterm( tempValue );
if (tempValue.length() == 0) break;
if (metaIndex == pfc_infinite) metaIndex = this->meta_add( tempName, tempValue );
else this->meta_add_value( metaIndex, tempValue );
}
}
}
{
this->info_remove_all();
for(;;) {
in.read_string_nullterm( tempName );
if (tempName.length() == 0) break;
in.read_string_nullterm( tempValue );
this->info_set( tempName, tempValue );
}
}
}
static const char * _readString( const uint8_t * & ptr, size_t & remaining ) {
const char * rv = (const char*)ptr;
for(;;) {
if (remaining == 0) throw exception_io_data();
uint8_t byte = *ptr++; --remaining;
if (byte == 0) break;
}
return rv;
}
template<typename int_t> void _readInt( int_t & out, const uint8_t * &ptr, size_t & remaining) {
if (remaining < sizeof(out)) throw exception_io_data();
pfc::decode_little_endian( out, ptr ); ptr += sizeof(out); remaining -= sizeof(out);
}
template<typename float_t> static void _readFloat(float_t & out, const uint8_t * &ptr, size_t & remaining) {
union {
typename pfc::sized_int_t<sizeof(float_t)>::t_unsigned i;
float_t f;
} u;
_readInt(u.i, ptr, remaining);
out = u.f;
}
void file_info::from_mem( const void * memPtr, size_t memSize ) {
size_t remaining = memSize;
const uint8_t * walk = (const uint8_t*) memPtr;
{
double len; _readFloat(len, walk, remaining);
this->set_length( len );
}
{
replaygain_info rg;
_readFloat(rg.m_track_gain, walk, remaining );
_readFloat(rg.m_album_gain, walk, remaining );
_readFloat(rg.m_track_peak, walk, remaining );
_readFloat(rg.m_album_peak, walk, remaining );
this->set_replaygain( rg );
}
{
this->meta_remove_all();
for(;;) {
const char * metaName = _readString( walk, remaining );
if (*metaName == 0) break;
size_t metaIndex = pfc_infinite;
for(;;) {
const char * metaValue = _readString( walk, remaining );
if (*metaValue == 0) break;
if (metaIndex == pfc_infinite) metaIndex = this->meta_add( metaName, metaValue );
else this->meta_add_value( metaIndex, metaName );
}
}
}
{
this->info_remove_all();
for(;;) {
const char * infoName = _readString( walk, remaining );
if (*infoName == 0) break;
const char * infoValue = _readString( walk, remaining );
this->info_set( infoName, infoValue );
}
}
}
audio_chunk::spec_t file_info::audio_chunk_spec() const
{
audio_chunk::spec_t rv = {};
rv.sampleRate = (uint32_t)this->info_get_int("samplerate");
rv.chanCount = (uint32_t)this->info_get_int("channels");
rv.chanMask = (uint32_t)this->info_get_wfx_chanMask();
if (audio_chunk::g_count_channels( rv.chanMask ) != rv.chanCount ) {
rv.chanMask = audio_chunk::g_guess_channel_config( rv.chanCount );
}
return rv;
}