mirror of
https://github.com/taglib/taglib.git
synced 2025-07-23 07:24:30 -04:00
Merge branch 'master' of https://github.com/taglib/taglib
This commit is contained in:
gonemad
126
taglib/ogg/opus/opusfile.cpp
Normal file
126
taglib/ogg/opus/opusfile.cpp
Normal file
@ -0,0 +1,126 @@
|
||||
/***************************************************************************
|
||||
copyright : (C) 2012 by Lukáš Lalinský
|
||||
email : lalinsky@gmail.com
|
||||
|
||||
copyright : (C) 2002 - 2008 by Scott Wheeler
|
||||
email : wheeler@kde.org
|
||||
(original Vorbis 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 <bitset>
|
||||
|
||||
#include <tstring.h>
|
||||
#include <tdebug.h>
|
||||
|
||||
#include "opusfile.h"
|
||||
|
||||
using namespace TagLib;
|
||||
using namespace TagLib::Ogg;
|
||||
|
||||
class Opus::File::FilePrivate
|
||||
{
|
||||
public:
|
||||
FilePrivate() :
|
||||
comment(0),
|
||||
properties(0) {}
|
||||
|
||||
~FilePrivate()
|
||||
{
|
||||
delete comment;
|
||||
delete properties;
|
||||
}
|
||||
|
||||
Ogg::XiphComment *comment;
|
||||
Properties *properties;
|
||||
};
|
||||
|
||||
////////////////////////////////////////////////////////////////////////////////
|
||||
// public members
|
||||
////////////////////////////////////////////////////////////////////////////////
|
||||
|
||||
Opus::File::File(FileName file, bool readProperties,
|
||||
Properties::ReadStyle propertiesStyle) : Ogg::File(file)
|
||||
{
|
||||
d = new FilePrivate;
|
||||
read(readProperties, propertiesStyle);
|
||||
}
|
||||
|
||||
Opus::File::File(IOStream *stream, bool readProperties,
|
||||
Properties::ReadStyle propertiesStyle) : Ogg::File(stream)
|
||||
{
|
||||
d = new FilePrivate;
|
||||
read(readProperties, propertiesStyle);
|
||||
}
|
||||
|
||||
Opus::File::~File()
|
||||
{
|
||||
delete d;
|
||||
}
|
||||
|
||||
Ogg::XiphComment *Opus::File::tag() const
|
||||
{
|
||||
return d->comment;
|
||||
}
|
||||
|
||||
Opus::Properties *Opus::File::audioProperties() const
|
||||
{
|
||||
return d->properties;
|
||||
}
|
||||
|
||||
bool Opus::File::save()
|
||||
{
|
||||
if(!d->comment)
|
||||
d->comment = new Ogg::XiphComment;
|
||||
|
||||
setPacket(1, ByteVector("OpusTags", 8) + d->comment->render(false));
|
||||
|
||||
return Ogg::File::save();
|
||||
}
|
||||
|
||||
////////////////////////////////////////////////////////////////////////////////
|
||||
// private members
|
||||
////////////////////////////////////////////////////////////////////////////////
|
||||
|
||||
void Opus::File::read(bool readProperties, Properties::ReadStyle propertiesStyle)
|
||||
{
|
||||
ByteVector opusHeaderData = packet(0);
|
||||
|
||||
if(!opusHeaderData.startsWith("OpusHead")) {
|
||||
setValid(false);
|
||||
debug("Opus::File::read() -- invalid Opus identification header");
|
||||
return;
|
||||
}
|
||||
|
||||
ByteVector commentHeaderData = packet(1);
|
||||
|
||||
if(!commentHeaderData.startsWith("OpusTags")) {
|
||||
setValid(false);
|
||||
debug("Opus::File::read() -- invalid Opus tags header");
|
||||
return;
|
||||
}
|
||||
|
||||
d->comment = new Ogg::XiphComment(commentHeaderData.mid(8));
|
||||
|
||||
if(readProperties)
|
||||
d->properties = new Properties(this, propertiesStyle);
|
||||
}
|
||||
110
taglib/ogg/opus/opusfile.h
Normal file
110
taglib/ogg/opus/opusfile.h
Normal file
@ -0,0 +1,110 @@
|
||||
/***************************************************************************
|
||||
copyright : (C) 2012 by Lukáš Lalinský
|
||||
email : lalinsky@gmail.com
|
||||
|
||||
copyright : (C) 2002 - 2008 by Scott Wheeler
|
||||
email : wheeler@kde.org
|
||||
(original Vorbis 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_OPUSFILE_H
|
||||
#define TAGLIB_OPUSFILE_H
|
||||
|
||||
#include "oggfile.h"
|
||||
#include "xiphcomment.h"
|
||||
|
||||
#include "opusproperties.h"
|
||||
|
||||
namespace TagLib {
|
||||
|
||||
namespace Ogg {
|
||||
|
||||
//! A namespace containing classes for Opus metadata
|
||||
|
||||
namespace Opus {
|
||||
|
||||
//! An implementation of Ogg::File with Opus specific methods
|
||||
|
||||
/*!
|
||||
* This is the central class in the Ogg Opus metadata processing collection
|
||||
* of classes. It's built upon Ogg::File which handles processing of the Ogg
|
||||
* logical bitstream and breaking it down into pages which are handled by
|
||||
* the codec implementations, in this case Opus specifically.
|
||||
*/
|
||||
|
||||
class TAGLIB_EXPORT File : public Ogg::File
|
||||
{
|
||||
public:
|
||||
/*!
|
||||
* Contructs a Opus 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);
|
||||
|
||||
/*!
|
||||
* Contructs a Opus 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 XiphComment for this file. XiphComment implements the tag
|
||||
* interface, so this serves as the reimplementation of
|
||||
* TagLib::File::tag().
|
||||
*/
|
||||
virtual Ogg::XiphComment *tag() const;
|
||||
|
||||
/*!
|
||||
* Returns the Opus::Properties for this file. If no audio properties
|
||||
* were read then this will return a null pointer.
|
||||
*/
|
||||
virtual Properties *audioProperties() const;
|
||||
|
||||
virtual bool save();
|
||||
|
||||
private:
|
||||
File(const File &);
|
||||
File &operator=(const File &);
|
||||
|
||||
void read(bool readProperties, Properties::ReadStyle propertiesStyle);
|
||||
|
||||
class FilePrivate;
|
||||
FilePrivate *d;
|
||||
};
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
#endif
|
||||
161
taglib/ogg/opus/opusproperties.cpp
Normal file
161
taglib/ogg/opus/opusproperties.cpp
Normal file
@ -0,0 +1,161 @@
|
||||
/***************************************************************************
|
||||
copyright : (C) 2012 by Lukáš Lalinský
|
||||
email : lalinsky@gmail.com
|
||||
|
||||
copyright : (C) 2002 - 2008 by Scott Wheeler
|
||||
email : wheeler@kde.org
|
||||
(original Vorbis 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 <oggpageheader.h>
|
||||
|
||||
#include "opusproperties.h"
|
||||
#include "opusfile.h"
|
||||
|
||||
using namespace TagLib;
|
||||
using namespace TagLib::Ogg;
|
||||
|
||||
class Opus::Properties::PropertiesPrivate
|
||||
{
|
||||
public:
|
||||
PropertiesPrivate(File *f, ReadStyle s) :
|
||||
file(f),
|
||||
style(s),
|
||||
length(0),
|
||||
inputSampleRate(0),
|
||||
channels(0),
|
||||
opusVersion(0) {}
|
||||
|
||||
File *file;
|
||||
ReadStyle style;
|
||||
int length;
|
||||
int inputSampleRate;
|
||||
int channels;
|
||||
int opusVersion;
|
||||
};
|
||||
|
||||
////////////////////////////////////////////////////////////////////////////////
|
||||
// public members
|
||||
////////////////////////////////////////////////////////////////////////////////
|
||||
|
||||
Opus::Properties::Properties(File *file, ReadStyle style) : AudioProperties(style)
|
||||
{
|
||||
d = new PropertiesPrivate(file, style);
|
||||
read();
|
||||
}
|
||||
|
||||
Opus::Properties::~Properties()
|
||||
{
|
||||
delete d;
|
||||
}
|
||||
|
||||
int Opus::Properties::length() const
|
||||
{
|
||||
return d->length;
|
||||
}
|
||||
|
||||
int Opus::Properties::bitrate() const
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
|
||||
int Opus::Properties::sampleRate() const
|
||||
{
|
||||
// Opus can decode any stream at a sample rate of 8, 12, 16, 24, or 48 kHz,
|
||||
// so there is no single sample rate. Let's assume it's the highest
|
||||
// possible.
|
||||
return 48000;
|
||||
}
|
||||
|
||||
int Opus::Properties::channels() const
|
||||
{
|
||||
return d->channels;
|
||||
}
|
||||
|
||||
int Opus::Properties::inputSampleRate() const
|
||||
{
|
||||
return d->inputSampleRate;
|
||||
}
|
||||
|
||||
int Opus::Properties::opusVersion() const
|
||||
{
|
||||
return d->opusVersion;
|
||||
}
|
||||
|
||||
////////////////////////////////////////////////////////////////////////////////
|
||||
// private members
|
||||
////////////////////////////////////////////////////////////////////////////////
|
||||
|
||||
void Opus::Properties::read()
|
||||
{
|
||||
// Get the identification header from the Ogg implementation.
|
||||
|
||||
// http://tools.ietf.org/html/draft-terriberry-oggopus-01#section-5.1
|
||||
|
||||
ByteVector data = d->file->packet(0);
|
||||
|
||||
// *Magic Signature*
|
||||
int pos = 8;
|
||||
|
||||
// *Version* (8 bits, unsigned)
|
||||
d->opusVersion = uchar(data.at(pos));
|
||||
pos += 1;
|
||||
|
||||
// *Output Channel Count* 'C' (8 bits, unsigned)
|
||||
d->channels = uchar(data.at(pos));
|
||||
pos += 1;
|
||||
|
||||
// *Pre-skip* (16 bits, unsigned, little endian)
|
||||
ushort preSkip = data.mid(pos, 2).toUShort(false);
|
||||
pos += 2;
|
||||
|
||||
// *Input Sample Rate* (32 bits, unsigned, little endian)
|
||||
d->inputSampleRate = data.mid(pos, 4).toUInt(false);
|
||||
pos += 4;
|
||||
|
||||
// *Output Gain* (16 bits, signed, little endian)
|
||||
pos += 2;
|
||||
|
||||
// *Channel Mapping Family* (8 bits, unsigned)
|
||||
pos += 1;
|
||||
|
||||
const Ogg::PageHeader *first = d->file->firstPageHeader();
|
||||
const Ogg::PageHeader *last = d->file->lastPageHeader();
|
||||
|
||||
if(first && last) {
|
||||
long long start = first->absoluteGranularPosition();
|
||||
long long end = last->absoluteGranularPosition();
|
||||
|
||||
if(start >= 0 && end >= 0)
|
||||
d->length = (int) ((end - start - preSkip) / 48000);
|
||||
else {
|
||||
debug("Opus::Properties::read() -- The PCM values for the start or "
|
||||
"end of this file was incorrect.");
|
||||
}
|
||||
}
|
||||
else
|
||||
debug("Opus::Properties::read() -- Could not find valid first and last Ogg pages.");
|
||||
}
|
||||
96
taglib/ogg/opus/opusproperties.h
Normal file
96
taglib/ogg/opus/opusproperties.h
Normal file
@ -0,0 +1,96 @@
|
||||
/***************************************************************************
|
||||
copyright : (C) 2012 by Lukáš Lalinský
|
||||
email : lalinsky@gmail.com
|
||||
|
||||
copyright : (C) 2002 - 2008 by Scott Wheeler
|
||||
email : wheeler@kde.org
|
||||
(original Vorbis 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_OPUSPROPERTIES_H
|
||||
#define TAGLIB_OPUSPROPERTIES_H
|
||||
|
||||
#include "audioproperties.h"
|
||||
|
||||
namespace TagLib {
|
||||
|
||||
namespace Ogg {
|
||||
|
||||
namespace Opus {
|
||||
|
||||
class File;
|
||||
|
||||
//! An implementation of audio property reading for Ogg Opus
|
||||
|
||||
/*!
|
||||
* This reads the data from an Ogg Opus stream found in the AudioProperties
|
||||
* API.
|
||||
*/
|
||||
|
||||
class TAGLIB_EXPORT Properties : public AudioProperties
|
||||
{
|
||||
public:
|
||||
/*!
|
||||
* Create an instance of Opus::Properties with the data read from the
|
||||
* Opus::File \a file.
|
||||
*/
|
||||
Properties(File *file, ReadStyle style = Average);
|
||||
|
||||
/*!
|
||||
* Destroys this Opus::Properties instance.
|
||||
*/
|
||||
virtual ~Properties();
|
||||
|
||||
// Reimplementations.
|
||||
|
||||
virtual int length() const;
|
||||
virtual int bitrate() const;
|
||||
virtual int sampleRate() const;
|
||||
virtual int channels() const;
|
||||
|
||||
/*!
|
||||
* The Opus codec supports decoding at multiple sample rates, there is no
|
||||
* single sample rate of the encoded stream. This returns the sample rate
|
||||
* of the original audio stream.
|
||||
*/
|
||||
int inputSampleRate() const;
|
||||
|
||||
/*!
|
||||
* Returns the Opus version, currently "0" (as specified by the spec).
|
||||
*/
|
||||
int opusVersion() const;
|
||||
|
||||
private:
|
||||
Properties(const Properties &);
|
||||
Properties &operator=(const Properties &);
|
||||
|
||||
void read();
|
||||
|
||||
class PropertiesPrivate;
|
||||
PropertiesPrivate *d;
|
||||
};
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
#endif
|
||||
Reference in New Issue
Block a user