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Audio file detection by content

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This commit is contained in:
Jonas Kvinge
2018-05-10 15:29:28 +02:00
parent 7b2d1d95d3
commit 5392cc4109
232 changed files with 55355 additions and 133 deletions
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284
3rdparty/taglib/wavpack/wavpackfile.cpp vendored Normal file
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/***************************************************************************
copyright : (C) 2006 by Lukáš Lalinský
email : lalinsky@gmail.com
copyright : (C) 2004 by Allan Sandfeld Jensen
email : kde@carewolf.org
(original MPC implementation)
***************************************************************************/
/***************************************************************************
* This library is free software; you can redistribute it and/or modify *
* it under the terms of the GNU Lesser General Public License version *
* 2.1 as published by the Free Software Foundation. *
* *
* 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 *
* *
* Alternatively, this file is available under the Mozilla Public *
* License Version 1.1. You may obtain a copy of the License at *
* http://www.mozilla.org/MPL/ *
***************************************************************************/
#include <tbytevector.h>
#include <tstring.h>
#include <tdebug.h>
#include <tagunion.h>
#include <tpropertymap.h>
#include <tagutils.h>
#include "wavpackfile.h"
#include "id3v1tag.h"
#include "id3v2header.h"
#include "apetag.h"
#include "apefooter.h"
using namespace TagLib;
namespace
{
enum { WavAPEIndex, WavID3v1Index };
}
class WavPack::File::FilePrivate
{
public:
FilePrivate() :
APELocation(-1),
APESize(0),
ID3v1Location(-1),
properties(0) {}
~FilePrivate()
{
delete properties;
}
long APELocation;
long APESize;
long ID3v1Location;
TagUnion tag;
Properties *properties;
};
////////////////////////////////////////////////////////////////////////////////
// static members
////////////////////////////////////////////////////////////////////////////////
bool WavPack::File::isSupported(IOStream *stream)
{
// A WavPack file has to start with "wvpk".
const ByteVector id = Utils::readHeader(stream, 4, false);
return (id == "wvpk");
}
////////////////////////////////////////////////////////////////////////////////
// public members
////////////////////////////////////////////////////////////////////////////////
WavPack::File::File(FileName file, bool readProperties, Properties::ReadStyle) :
TagLib::File(file),
d(new FilePrivate())
{
if(isOpen())
read(readProperties);
}
WavPack::File::File(IOStream *stream, bool readProperties, Properties::ReadStyle) :
TagLib::File(stream),
d(new FilePrivate())
{
if(isOpen())
read(readProperties);
}
WavPack::File::~File()
{
delete d;
}
TagLib::Tag *WavPack::File::tag() const
{
return &d->tag;
}
PropertyMap WavPack::File::properties() const
{
return d->tag.properties();
}
void WavPack::File::removeUnsupportedProperties(const StringList &unsupported)
{
d->tag.removeUnsupportedProperties(unsupported);
}
PropertyMap WavPack::File::setProperties(const PropertyMap &properties)
{
if(ID3v1Tag())
ID3v1Tag()->setProperties(properties);
return APETag(true)->setProperties(properties);
}
WavPack::Properties *WavPack::File::audioProperties() const
{
return d->properties;
}
bool WavPack::File::save()
{
if(readOnly()) {
debug("WavPack::File::save() -- File is read only.");
return false;
}
// Update ID3v1 tag
if(ID3v1Tag() && !ID3v1Tag()->isEmpty()) {
// ID3v1 tag is not empty. Update the old one or create a new one.
if(d->ID3v1Location >= 0) {
seek(d->ID3v1Location);
}
else {
seek(0, End);
d->ID3v1Location = tell();
}
writeBlock(ID3v1Tag()->render());
}
else {
// ID3v1 tag is empty. Remove the old one.
if(d->ID3v1Location >= 0) {
truncate(d->ID3v1Location);
d->ID3v1Location = -1;
}
}
// Update APE tag
if(APETag() && !APETag()->isEmpty()) {
// APE tag is not empty. Update the old one or create a new one.
if(d->APELocation < 0) {
if(d->ID3v1Location >= 0)
d->APELocation = d->ID3v1Location;
else
d->APELocation = length();
}
const ByteVector data = APETag()->render();
insert(data, d->APELocation, d->APESize);
if(d->ID3v1Location >= 0)
d->ID3v1Location += (static_cast<long>(data.size()) - d->APESize);
d->APESize = data.size();
}
else {
// APE tag is empty. Remove the old one.
if(d->APELocation >= 0) {
removeBlock(d->APELocation, d->APESize);
if(d->ID3v1Location >= 0)
d->ID3v1Location -= d->APESize;
d->APELocation = -1;
d->APESize = 0;
}
}
return true;
}
ID3v1::Tag *WavPack::File::ID3v1Tag(bool create)
{
return d->tag.access<ID3v1::Tag>(WavID3v1Index, create);
}
APE::Tag *WavPack::File::APETag(bool create)
{
return d->tag.access<APE::Tag>(WavAPEIndex, create);
}
void WavPack::File::strip(int tags)
{
if(tags & ID3v1)
d->tag.set(WavID3v1Index, 0);
if(tags & APE)
d->tag.set(WavAPEIndex, 0);
if(!ID3v1Tag())
APETag(true);
}
bool WavPack::File::hasID3v1Tag() const
{
return (d->ID3v1Location >= 0);
}
bool WavPack::File::hasAPETag() const
{
return (d->APELocation >= 0);
}
////////////////////////////////////////////////////////////////////////////////
// private members
////////////////////////////////////////////////////////////////////////////////
void WavPack::File::read(bool readProperties)
{
// Look for an ID3v1 tag
d->ID3v1Location = Utils::findID3v1(this);
if(d->ID3v1Location >= 0)
d->tag.set(WavID3v1Index, new ID3v1::Tag(this, d->ID3v1Location));
// Look for an APE tag
d->APELocation = Utils::findAPE(this, d->ID3v1Location);
if(d->APELocation >= 0) {
d->tag.set(WavAPEIndex, new APE::Tag(this, d->APELocation));
d->APESize = APETag()->footer()->completeTagSize();
d->APELocation = d->APELocation + APE::Footer::size() - d->APESize;
}
if(d->ID3v1Location >= 0)
APETag(true);
// Look for WavPack audio properties
if(readProperties) {
long streamLength;
if(d->APELocation >= 0)
streamLength = d->APELocation;
else if(d->ID3v1Location >= 0)
streamLength = d->ID3v1Location;
else
streamLength = length();
d->properties = new Properties(this, streamLength);
}
}

223
3rdparty/taglib/wavpack/wavpackfile.h vendored Normal file
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/***************************************************************************
copyright : (C) 2006 by Lukáš Lalinský
email : lalinsky@gmail.com
copyright : (C) 2004 by Allan Sandfeld Jensen
email : kde@carewolf.org
(original MPC implementation)
***************************************************************************/
/***************************************************************************
* This library is free software; you can redistribute it and/or modify *
* it under the terms of the GNU Lesser General Public License version *
* 2.1 as published by the Free Software Foundation. *
* *
* 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 *
* *
* Alternatively, this file is available under the Mozilla Public *
* License Version 1.1. You may obtain a copy of the License at *
* http://www.mozilla.org/MPL/ *
***************************************************************************/
#ifndef TAGLIB_WVFILE_H
#define TAGLIB_WVFILE_H
#include "tfile.h"
#include "taglib_export.h"
#include "wavpackproperties.h"
namespace TagLib {
class Tag;
namespace ID3v1 { class Tag; }
namespace APE { class Tag; }
//! An implementation of WavPack metadata
/*!
* This is implementation of WavPack metadata.
*
* This supports ID3v1 and APE (v1 and v2) style comments as well as reading stream
* properties from the file.
*/
namespace WavPack {
//! An implementation of TagLib::File with WavPack specific methods
/*!
* This implements and provides an interface for WavPack files to the
* TagLib::Tag and TagLib::AudioProperties interfaces by way of implementing
* the abstract TagLib::File API as well as providing some additional
* information specific to WavPack files.
*/
class TAGLIB_EXPORT File : public TagLib::File
{
public:
/*!
* This set of flags is used for various operations and is suitable for
* being OR-ed together.
*/
enum TagTypes {
//! Empty set. Matches no tag types.
NoTags = 0x0000,
//! Matches ID3v1 tags.
ID3v1 = 0x0001,
//! Matches APE tags.
APE = 0x0002,
//! Matches all tag types.
AllTags = 0xffff
};
/*!
* Constructs a WavPack file from \a file. If \a readProperties is true the
* file's audio properties will also be read using \a propertiesStyle. If
* false, \a propertiesStyle is ignored
*/
File(FileName file, bool readProperties = true,
Properties::ReadStyle propertiesStyle = Properties::Average);
/*!
* Constructs an WavPack file from \a file. If \a readProperties is true the
* file's audio properties will also be read using \a propertiesStyle. If
* false, \a propertiesStyle is ignored.
*
* \note TagLib will *not* take ownership of the stream, the caller is
* responsible for deleting it after the File object.
*/
File(IOStream *stream, bool readProperties = true,
Properties::ReadStyle propertiesStyle = Properties::Average);
/*!
* Destroys this instance of the File.
*/
virtual ~File();
/*!
* Returns the Tag for this file. This will be an APE tag, an ID3v1 tag
* or a combination of the two.
*/
virtual TagLib::Tag *tag() const;
/*!
* Implements the unified property interface -- export function.
* If the file contains both an APE and an ID3v1 tag, only APE
* will be converted to the PropertyMap.
*/
PropertyMap properties() const;
void removeUnsupportedProperties(const StringList &properties);
/*!
* Implements the unified property interface -- import function.
* Creates an APE tag if it does not exists and calls setProperties() on
* that. Any existing ID3v1 tag will be updated as well.
*/
PropertyMap setProperties(const PropertyMap&);
/*!
* Returns the MPC::Properties for this file. If no audio properties
* were read then this will return a null pointer.
*/
virtual Properties *audioProperties() const;
/*!
* Saves the file.
*
* This returns true if the save was successful.
*/
virtual bool save();
/*!
* Returns a pointer to the ID3v1 tag of the file.
*
* If \a create is false (the default) this may return a null pointer
* if there is no valid ID3v1 tag. If \a create is true it will create
* an ID3v1 tag if one does not exist and returns a valid pointer.
*
* \note This may return a valid pointer regardless of whether or not the
* file on disk has an ID3v1 tag. Use hasID3v1Tag() to check if the file
* on disk actually has an ID3v1 tag.
*
* \note The Tag <b>is still</b> owned by the MPEG::File and should not be
* deleted by the user. It will be deleted when the file (object) is
* destroyed.
*
* \see hasID3v1Tag()
*/
ID3v1::Tag *ID3v1Tag(bool create = false);
/*!
* Returns a pointer to the APE tag of the file.
*
* If \a create is false (the default) this may return a null pointer
* if there is no valid APE tag. If \a create is true it will create
* an APE tag if one does not exist and returns a valid pointer.
*
* \note This may return a valid pointer regardless of whether or not the
* file on disk has an APE tag. Use hasAPETag() to check if the file
* on disk actually has an APE tag.
*
* \note The Tag <b>is still</b> owned by the MPEG::File and should not be
* deleted by the user. It will be deleted when the file (object) is
* destroyed.
*
* \see hasAPETag()
*/
APE::Tag *APETag(bool create = false);
/*!
* This will remove the tags that match the OR-ed together TagTypes from the
* file. By default it removes all tags.
*
* \note This will also invalidate pointers to the tags
* as their memory will be freed.
* \note In order to make the removal permanent save() still needs to be called
*/
void strip(int tags = AllTags);
/*!
* Returns whether or not the file on disk actually has an ID3v1 tag.
*
* \see ID3v1Tag()
*/
bool hasID3v1Tag() const;
/*!
* Returns whether or not the file on disk actually has an APE tag.
*
* \see APETag()
*/
bool hasAPETag() const;
/*!
* Check if the given \a stream can be opened as a WavPack file.
*
* \note This method is designed to do a quick check. The result may
* not necessarily be correct.
*/
static bool isSupported(IOStream *stream);
private:
File(const File &);
File &operator=(const File &);
void read(bool readProperties);
class FilePrivate;
FilePrivate *d;
};
}
}
#endif

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3rdparty/taglib/wavpack/wavpackproperties.cpp vendored Normal file
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/***************************************************************************
copyright : (C) 2006 by Lukáš Lalinský
email : lalinsky@gmail.com
copyright : (C) 2004 by Allan Sandfeld Jensen
email : kde@carewolf.org
(original MPC implementation)
***************************************************************************/
/***************************************************************************
* This library is free software; you can redistribute it and/or modify *
* it under the terms of the GNU Lesser General Public License version *
* 2.1 as published by the Free Software Foundation. *
* *
* 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 *
* *
* Alternatively, this file is available under the Mozilla Public *
* License Version 1.1. You may obtain a copy of the License at *
* http://www.mozilla.org/MPL/ *
***************************************************************************/
#include <tstring.h>
#include <tdebug.h>
#include "wavpackproperties.h"
#include "wavpackfile.h"
// Implementation of this class is based on the information at:
// http://www.wavpack.com/file_format.txt
using namespace TagLib;
class WavPack::Properties::PropertiesPrivate
{
public:
PropertiesPrivate() :
length(0),
bitrate(0),
sampleRate(0),
channels(0),
version(0),
bitsPerSample(0),
lossless(false),
sampleFrames(0) {}
int length;
int bitrate;
int sampleRate;
int channels;
int version;
int bitsPerSample;
bool lossless;
unsigned int sampleFrames;
};
////////////////////////////////////////////////////////////////////////////////
// public members
////////////////////////////////////////////////////////////////////////////////
WavPack::Properties::Properties(const ByteVector &, long, ReadStyle style) :
AudioProperties(style),
d(new PropertiesPrivate())
{
debug("WavPack::Properties::Properties() -- This constructor is no longer used.");
}
WavPack::Properties::Properties(File *file, long streamLength, ReadStyle style) :
AudioProperties(style),
d(new PropertiesPrivate())
{
read(file, streamLength);
}
WavPack::Properties::~Properties()
{
delete d;
}
int WavPack::Properties::length() const
{
return lengthInSeconds();
}
int WavPack::Properties::lengthInSeconds() const
{
return d->length / 1000;
}
int WavPack::Properties::lengthInMilliseconds() const
{
return d->length;
}
int WavPack::Properties::bitrate() const
{
return d->bitrate;
}
int WavPack::Properties::sampleRate() const
{
return d->sampleRate;
}
int WavPack::Properties::channels() const
{
return d->channels;
}
int WavPack::Properties::version() const
{
return d->version;
}
int WavPack::Properties::bitsPerSample() const
{
return d->bitsPerSample;
}
bool WavPack::Properties::isLossless() const
{
return d->lossless;
}
unsigned int WavPack::Properties::sampleFrames() const
{
return d->sampleFrames;
}
////////////////////////////////////////////////////////////////////////////////
// private members
////////////////////////////////////////////////////////////////////////////////
namespace
{
const unsigned int sample_rates[] = {
6000, 8000, 9600, 11025, 12000, 16000, 22050, 24000,
32000, 44100, 48000, 64000, 88200, 96000, 192000, 0 };
}
#define BYTES_STORED 3
#define MONO_FLAG 4
#define LOSSLESS_FLAG 8
#define SHIFT_LSB 13
#define SHIFT_MASK (0x1fL << SHIFT_LSB)
#define SRATE_LSB 23
#define SRATE_MASK (0xfL << SRATE_LSB)
#define MIN_STREAM_VERS 0x402
#define MAX_STREAM_VERS 0x410
#define FINAL_BLOCK 0x1000
void WavPack::Properties::read(File *file, long streamLength)
{
long offset = 0;
while(true) {
file->seek(offset);
const ByteVector data = file->readBlock(32);
if(data.size() < 32) {
debug("WavPack::Properties::read() -- data is too short.");
break;
}
if(!data.startsWith("wvpk")) {
debug("WavPack::Properties::read() -- Block header not found.");
break;
}
const unsigned int flags = data.toUInt(24, false);
if(offset == 0) {
d->version = data.toShort(8, false);
if(d->version < MIN_STREAM_VERS || d->version > MAX_STREAM_VERS)
break;
d->bitsPerSample = ((flags & BYTES_STORED) + 1) * 8 - ((flags & SHIFT_MASK) >> SHIFT_LSB);
d->sampleRate = sample_rates[(flags & SRATE_MASK) >> SRATE_LSB];
d->lossless = !(flags & LOSSLESS_FLAG);
d->sampleFrames = data.toUInt(12, false);
}
d->channels += (flags & MONO_FLAG) ? 1 : 2;
if(flags & FINAL_BLOCK)
break;
const unsigned int blockSize = data.toUInt(4, false);
offset += blockSize + 8;
}
if(d->sampleFrames == ~0u)
d->sampleFrames = seekFinalIndex(file, streamLength);
if(d->sampleFrames > 0 && d->sampleRate > 0) {
const double length = d->sampleFrames * 1000.0 / d->sampleRate;
d->length = static_cast<int>(length + 0.5);
d->bitrate = static_cast<int>(streamLength * 8.0 / length + 0.5);
}
}
unsigned int WavPack::Properties::seekFinalIndex(File *file, long streamLength)
{
const long offset = file->rfind("wvpk", streamLength);
if(offset == -1)
return 0;
file->seek(offset);
const ByteVector data = file->readBlock(32);
if(data.size() < 32)
return 0;
const int version = data.toShort(8, false);
if(version < MIN_STREAM_VERS || version > MAX_STREAM_VERS)
return 0;
const unsigned int flags = data.toUInt(24, false);
if(!(flags & FINAL_BLOCK))
return 0;
const unsigned int blockIndex = data.toUInt(16, false);
const unsigned int blockSamples = data.toUInt(20, false);
return blockIndex + blockSamples;
}

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3rdparty/taglib/wavpack/wavpackproperties.h vendored Normal file
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/***************************************************************************
copyright : (C) 2006 by Lukáš Lalinský
email : lalinsky@gmail.com
copyright : (C) 2004 by Allan Sandfeld Jensen
email : kde@carewolf.org
(original MPC implementation)
***************************************************************************/
/***************************************************************************
* This library is free software; you can redistribute it and/or modify *
* it under the terms of the GNU Lesser General Public License version *
* 2.1 as published by the Free Software Foundation. *
* *
* 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 *
* *
* Alternatively, this file is available under the Mozilla Public *
* License Version 1.1. You may obtain a copy of the License at *
* http://www.mozilla.org/MPL/ *
***************************************************************************/
#ifndef TAGLIB_WVPROPERTIES_H
#define TAGLIB_WVPROPERTIES_H
#include "taglib_export.h"
#include "audioproperties.h"
namespace TagLib {
namespace WavPack {
class File;
static const unsigned int HeaderSize = 32;
//! An implementation of audio property reading for WavPack
/*!
* This reads the data from an WavPack stream found in the AudioProperties
* API.
*/
class TAGLIB_EXPORT Properties : public AudioProperties
{
public:
/*!
* Create an instance of WavPack::Properties with the data read from the
* ByteVector \a data.
*
* \deprecated This constructor will be dropped in favor of the one below
* in a future version.
*/
Properties(const ByteVector &data, long streamLength, ReadStyle style = Average);
/*!
* Create an instance of WavPack::Properties.
*/
// BIC: merge with the above constructor
Properties(File *file, long streamLength, ReadStyle style = Average);
/*!
* Destroys this WavPack::Properties instance.
*/
virtual ~Properties();
/*!
* Returns the length of the file in seconds. The length is rounded down to
* the nearest whole second.
*
* \note This method is just an alias of lengthInSeconds().
*
* \deprecated
*/
virtual int length() const;
/*!
* Returns the length of the file in seconds. The length is rounded down to
* the nearest whole second.
*
* \see lengthInMilliseconds()
*/
// BIC: make virtual
int lengthInSeconds() const;
/*!
* Returns the length of the file in milliseconds.
*
* \see lengthInSeconds()
*/
// BIC: make virtual
int lengthInMilliseconds() const;
/*!
* Returns the average bit rate of the file in kb/s.
*/
virtual int bitrate() const;
/*!
* Returns the sample rate in Hz. 0 means unknown or custom.
*/
virtual int sampleRate() const;
/*!
* Returns the number of audio channels.
*/
virtual int channels() const;
/*!
* Returns the number of bits per audio sample.
*/
int bitsPerSample() const;
/*!
* Returns whether or not the file is lossless encoded.
*/
bool isLossless() const;
/*!
* Returns the total number of audio samples in file.
*/
unsigned int sampleFrames() const;
/*!
* Returns WavPack version.
*/
int version() const;
private:
Properties(const Properties &);
Properties &operator=(const Properties &);
void read(File *file, long streamLength);
unsigned int seekFinalIndex(File *file, long streamLength);
class PropertiesPrivate;
PropertiesPrivate *d;
};
}
}
#endif