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Clementine-audio-player-Mac.../3rdparty/taglib/asf/asffile.cpp

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/**************************************************************************
copyright : (C) 2005-2007 by Lukáš Lalinský
email : lalinsky@gmail.com
**************************************************************************/
/***************************************************************************
* 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 <tdebug.h>
#include <tbytevectorlist.h>
#include <tpropertymap.h>
#include <tstring.h>
#include <tagutils.h>
#include "asffile.h"
#include "asftag.h"
#include "asfproperties.h"
#include "asfutils.h"
using namespace TagLib;
class ASF::File::FilePrivate
{
public:
class BaseObject;
class UnknownObject;
class FilePropertiesObject;
class StreamPropertiesObject;
class ContentDescriptionObject;
class ExtendedContentDescriptionObject;
class HeaderExtensionObject;
class CodecListObject;
class MetadataObject;
class MetadataLibraryObject;
FilePrivate():
headerSize(0),
tag(0),
properties(0),
contentDescriptionObject(0),
extendedContentDescriptionObject(0),
headerExtensionObject(0),
metadataObject(0),
metadataLibraryObject(0)
{
objects.setAutoDelete(true);
}
~FilePrivate()
{
delete tag;
delete properties;
}
unsigned long long headerSize;
ASF::Tag *tag;
ASF::Properties *properties;
List<BaseObject *> objects;
ContentDescriptionObject *contentDescriptionObject;
ExtendedContentDescriptionObject *extendedContentDescriptionObject;
HeaderExtensionObject *headerExtensionObject;
MetadataObject *metadataObject;
MetadataLibraryObject *metadataLibraryObject;
};
namespace
{
const ByteVector headerGuid("\x30\x26\xB2\x75\x8E\x66\xCF\x11\xA6\xD9\x00\xAA\x00\x62\xCE\x6C", 16);
const ByteVector filePropertiesGuid("\xA1\xDC\xAB\x8C\x47\xA9\xCF\x11\x8E\xE4\x00\xC0\x0C\x20\x53\x65", 16);
const ByteVector streamPropertiesGuid("\x91\x07\xDC\xB7\xB7\xA9\xCF\x11\x8E\xE6\x00\xC0\x0C\x20\x53\x65", 16);
const ByteVector contentDescriptionGuid("\x33\x26\xB2\x75\x8E\x66\xCF\x11\xA6\xD9\x00\xAA\x00\x62\xCE\x6C", 16);
const ByteVector extendedContentDescriptionGuid("\x40\xA4\xD0\xD2\x07\xE3\xD2\x11\x97\xF0\x00\xA0\xC9\x5E\xA8\x50", 16);
const ByteVector headerExtensionGuid("\xb5\x03\xbf_.\xa9\xcf\x11\x8e\xe3\x00\xc0\x0c Se", 16);
const ByteVector metadataGuid("\xEA\xCB\xF8\xC5\xAF[wH\204g\xAA\214D\xFAL\xCA", 16);
const ByteVector metadataLibraryGuid("\224\034#D\230\224\321I\241A\x1d\x13NEpT", 16);
const ByteVector codecListGuid("\x40\x52\xd1\x86\x1d\x31\xd0\x11\xa3\xa4\x00\xa0\xc9\x03\x48\xf6", 16);
const ByteVector contentEncryptionGuid("\xFB\xB3\x11\x22\x23\xBD\xD2\x11\xB4\xB7\x00\xA0\xC9\x55\xFC\x6E", 16);
const ByteVector extendedContentEncryptionGuid("\x14\xE6\x8A\x29\x22\x26 \x17\x4C\xB9\x35\xDA\xE0\x7E\xE9\x28\x9C", 16);
const ByteVector advancedContentEncryptionGuid("\xB6\x9B\x07\x7A\xA4\xDA\x12\x4E\xA5\xCA\x91\xD3\x8D\xC1\x1A\x8D", 16);
}
class ASF::File::FilePrivate::BaseObject
{
public:
ByteVector data;
virtual ~BaseObject() {}
virtual ByteVector guid() const = 0;
virtual void parse(ASF::File *file, unsigned int size);
virtual ByteVector render(ASF::File *file);
};
class ASF::File::FilePrivate::UnknownObject : public ASF::File::FilePrivate::BaseObject
{
ByteVector myGuid;
public:
UnknownObject(const ByteVector &guid);
ByteVector guid() const;
};
class ASF::File::FilePrivate::FilePropertiesObject : public ASF::File::FilePrivate::BaseObject
{
public:
ByteVector guid() const;
void parse(ASF::File *file, unsigned int size);
};
class ASF::File::FilePrivate::StreamPropertiesObject : public ASF::File::FilePrivate::BaseObject
{
public:
ByteVector guid() const;
void parse(ASF::File *file, unsigned int size);
};
class ASF::File::FilePrivate::ContentDescriptionObject : public ASF::File::FilePrivate::BaseObject
{
public:
ByteVector guid() const;
void parse(ASF::File *file, unsigned int size);
ByteVector render(ASF::File *file);
};
class ASF::File::FilePrivate::ExtendedContentDescriptionObject : public ASF::File::FilePrivate::BaseObject
{
public:
ByteVectorList attributeData;
ByteVector guid() const;
void parse(ASF::File *file, unsigned int size);
ByteVector render(ASF::File *file);
};
class ASF::File::FilePrivate::MetadataObject : public ASF::File::FilePrivate::BaseObject
{
public:
ByteVectorList attributeData;
ByteVector guid() const;
void parse(ASF::File *file, unsigned int size);
ByteVector render(ASF::File *file);
};
class ASF::File::FilePrivate::MetadataLibraryObject : public ASF::File::FilePrivate::BaseObject
{
public:
ByteVectorList attributeData;
ByteVector guid() const;
void parse(ASF::File *file, unsigned int size);
ByteVector render(ASF::File *file);
};
class ASF::File::FilePrivate::HeaderExtensionObject : public ASF::File::FilePrivate::BaseObject
{
public:
List<ASF::File::FilePrivate::BaseObject *> objects;
HeaderExtensionObject();
ByteVector guid() const;
void parse(ASF::File *file, unsigned int size);
ByteVector render(ASF::File *file);
};
class ASF::File::FilePrivate::CodecListObject : public ASF::File::FilePrivate::BaseObject
{
public:
ByteVector guid() const;
void parse(ASF::File *file, unsigned int size);
private:
enum CodecType
{
Video = 0x0001,
Audio = 0x0002,
Unknown = 0xFFFF
};
};
void ASF::File::FilePrivate::BaseObject::parse(ASF::File *file, unsigned int size)
{
data.clear();
if(size > 24 && size <= (unsigned int)(file->length()))
data = file->readBlock(size - 24);
else
data = ByteVector();
}
ByteVector ASF::File::FilePrivate::BaseObject::render(ASF::File * /*file*/)
{
return guid() + ByteVector::fromLongLong(data.size() + 24, false) + data;
}
ASF::File::FilePrivate::UnknownObject::UnknownObject(const ByteVector &guid) : myGuid(guid)
{
}
ByteVector ASF::File::FilePrivate::UnknownObject::guid() const
{
return myGuid;
}
ByteVector ASF::File::FilePrivate::FilePropertiesObject::guid() const
{
return filePropertiesGuid;
}
void ASF::File::FilePrivate::FilePropertiesObject::parse(ASF::File *file, unsigned int size)
{
BaseObject::parse(file, size);
if(data.size() < 64) {
debug("ASF::File::FilePrivate::FilePropertiesObject::parse() -- data is too short.");
return;
}
const long long duration = data.toLongLong(40, false);
const long long preroll = data.toLongLong(56, false);
file->d->properties->setLengthInMilliseconds(static_cast<int>(duration / 10000.0 - preroll + 0.5));
}
ByteVector ASF::File::FilePrivate::StreamPropertiesObject::guid() const
{
return streamPropertiesGuid;
}
void ASF::File::FilePrivate::StreamPropertiesObject::parse(ASF::File *file, unsigned int size)
{
BaseObject::parse(file, size);
if(data.size() < 70) {
debug("ASF::File::FilePrivate::StreamPropertiesObject::parse() -- data is too short.");
return;
}
file->d->properties->setCodec(data.toUShort(54, false));
file->d->properties->setChannels(data.toUShort(56, false));
file->d->properties->setSampleRate(data.toUInt(58, false));
file->d->properties->setBitrate(static_cast<int>(data.toUInt(62, false) * 8.0 / 1000.0 + 0.5));
file->d->properties->setBitsPerSample(data.toUShort(68, false));
}
ByteVector ASF::File::FilePrivate::ContentDescriptionObject::guid() const
{
return contentDescriptionGuid;
}
void ASF::File::FilePrivate::ContentDescriptionObject::parse(ASF::File *file, unsigned int /*size*/)
{
const int titleLength = readWORD(file);
const int artistLength = readWORD(file);
const int copyrightLength = readWORD(file);
const int commentLength = readWORD(file);
const int ratingLength = readWORD(file);
file->d->tag->setTitle(readString(file,titleLength));
file->d->tag->setArtist(readString(file,artistLength));
file->d->tag->setCopyright(readString(file,copyrightLength));
file->d->tag->setComment(readString(file,commentLength));
file->d->tag->setRating(readString(file,ratingLength));
}
ByteVector ASF::File::FilePrivate::ContentDescriptionObject::render(ASF::File *file)
{
const ByteVector v1 = renderString(file->d->tag->title());
const ByteVector v2 = renderString(file->d->tag->artist());
const ByteVector v3 = renderString(file->d->tag->copyright());
const ByteVector v4 = renderString(file->d->tag->comment());
const ByteVector v5 = renderString(file->d->tag->rating());
data.clear();
data.append(ByteVector::fromShort(v1.size(), false));
data.append(ByteVector::fromShort(v2.size(), false));
data.append(ByteVector::fromShort(v3.size(), false));
data.append(ByteVector::fromShort(v4.size(), false));
data.append(ByteVector::fromShort(v5.size(), false));
data.append(v1);
data.append(v2);
data.append(v3);
data.append(v4);
data.append(v5);
return BaseObject::render(file);
}
ByteVector ASF::File::FilePrivate::ExtendedContentDescriptionObject::guid() const
{
return extendedContentDescriptionGuid;
}
void ASF::File::FilePrivate::ExtendedContentDescriptionObject::parse(ASF::File *file, unsigned int /*size*/)
{
int count = readWORD(file);
while(count--) {
ASF::Attribute attribute;
String name = attribute.parse(*file);
file->d->tag->addAttribute(name, attribute);
}
}
ByteVector ASF::File::FilePrivate::ExtendedContentDescriptionObject::render(ASF::File *file)
{
data.clear();
data.append(ByteVector::fromShort(attributeData.size(), false));
data.append(attributeData.toByteVector(""));
return BaseObject::render(file);
}
ByteVector ASF::File::FilePrivate::MetadataObject::guid() const
{
return metadataGuid;
}
void ASF::File::FilePrivate::MetadataObject::parse(ASF::File *file, unsigned int /*size*/)
{
int count = readWORD(file);
while(count--) {
ASF::Attribute attribute;
String name = attribute.parse(*file, 1);
file->d->tag->addAttribute(name, attribute);
}
}
ByteVector ASF::File::FilePrivate::MetadataObject::render(ASF::File *file)
{
data.clear();
data.append(ByteVector::fromShort(attributeData.size(), false));
data.append(attributeData.toByteVector(""));
return BaseObject::render(file);
}
ByteVector ASF::File::FilePrivate::MetadataLibraryObject::guid() const
{
return metadataLibraryGuid;
}
void ASF::File::FilePrivate::MetadataLibraryObject::parse(ASF::File *file, unsigned int /*size*/)
{
int count = readWORD(file);
while(count--) {
ASF::Attribute attribute;
String name = attribute.parse(*file, 2);
file->d->tag->addAttribute(name, attribute);
}
}
ByteVector ASF::File::FilePrivate::MetadataLibraryObject::render(ASF::File *file)
{
data.clear();
data.append(ByteVector::fromShort(attributeData.size(), false));
data.append(attributeData.toByteVector(""));
return BaseObject::render(file);
}
ASF::File::FilePrivate::HeaderExtensionObject::HeaderExtensionObject()
{
objects.setAutoDelete(true);
}
ByteVector ASF::File::FilePrivate::HeaderExtensionObject::guid() const
{
return headerExtensionGuid;
}
void ASF::File::FilePrivate::HeaderExtensionObject::parse(ASF::File *file, unsigned int /*size*/)
{
file->seek(18, File::Current);
long long dataSize = readDWORD(file);
long long dataPos = 0;
while(dataPos < dataSize) {
ByteVector guid = file->readBlock(16);
if(guid.size() != 16) {
file->setValid(false);
break;
}
bool ok;
long long size = readQWORD(file, &ok);
if(!ok) {
file->setValid(false);
break;
}
BaseObject *obj;
if(guid == metadataGuid) {
file->d->metadataObject = new MetadataObject();
obj = file->d->metadataObject;
}
else if(guid == metadataLibraryGuid) {
file->d->metadataLibraryObject = new MetadataLibraryObject();
obj = file->d->metadataLibraryObject;
}
else {
obj = new UnknownObject(guid);
}
obj->parse(file, (unsigned int)size);
objects.append(obj);
dataPos += size;
}
}
ByteVector ASF::File::FilePrivate::HeaderExtensionObject::render(ASF::File *file)
{
data.clear();
for(List<BaseObject *>::ConstIterator it = objects.begin(); it != objects.end(); ++it) {
data.append((*it)->render(file));
}
data = ByteVector("\x11\xD2\xD3\xAB\xBA\xA9\xcf\x11\x8E\xE6\x00\xC0\x0C\x20\x53\x65\x06\x00", 18) + ByteVector::fromUInt(data.size(), false) + data;
return BaseObject::render(file);
}
ByteVector ASF::File::FilePrivate::CodecListObject::guid() const
{
return codecListGuid;
}
void ASF::File::FilePrivate::CodecListObject::parse(ASF::File *file, unsigned int size)
{
BaseObject::parse(file, size);
if(data.size() <= 20) {
debug("ASF::File::FilePrivate::CodecListObject::parse() -- data is too short.");
return;
}
unsigned int pos = 16;
const int count = data.toUInt(pos, false);
pos += 4;
for(int i = 0; i < count; ++i) {
if(pos >= data.size())
break;
const CodecType type = static_cast<CodecType>(data.toUShort(pos, false));
pos += 2;
int nameLength = data.toUShort(pos, false);
pos += 2;
const unsigned int namePos = pos;
pos += nameLength * 2;
const int descLength = data.toUShort(pos, false);
pos += 2;
const unsigned int descPos = pos;
pos += descLength * 2;
const int infoLength = data.toUShort(pos, false);
pos += 2 + infoLength * 2;
if(type == CodecListObject::Audio) {
// First audio codec found.
const String name(data.mid(namePos, nameLength * 2), String::UTF16LE);
file->d->properties->setCodecName(name.stripWhiteSpace());
const String desc(data.mid(descPos, descLength * 2), String::UTF16LE);
file->d->properties->setCodecDescription(desc.stripWhiteSpace());
break;
}
}
}
////////////////////////////////////////////////////////////////////////////////
// static members
////////////////////////////////////////////////////////////////////////////////
bool ASF::File::isSupported(IOStream *stream)
{
// An ASF file has to start with the designated GUID.
const ByteVector id = Utils::readHeader(stream, 16, false);
return (id == headerGuid);
}
////////////////////////////////////////////////////////////////////////////////
// public members
////////////////////////////////////////////////////////////////////////////////
ASF::File::File(FileName file, bool, Properties::ReadStyle) :
TagLib::File(file),
d(new FilePrivate())
{
if(isOpen())
read();
}
ASF::File::File(IOStream *stream, bool, Properties::ReadStyle) :
TagLib::File(stream),
d(new FilePrivate())
{
if(isOpen())
read();
}
ASF::File::~File()
{
delete d;
}
ASF::Tag *ASF::File::tag() const
{
return d->tag;
}
PropertyMap ASF::File::properties() const
{
return d->tag->properties();
}
void ASF::File::removeUnsupportedProperties(const StringList &properties)
{
d->tag->removeUnsupportedProperties(properties);
}
PropertyMap ASF::File::setProperties(const PropertyMap &properties)
{
return d->tag->setProperties(properties);
}
ASF::Properties *ASF::File::audioProperties() const
{
return d->properties;
}
bool ASF::File::save()
{
if(readOnly()) {
debug("ASF::File::save() -- File is read only.");
return false;
}
if(!isValid()) {
debug("ASF::File::save() -- Trying to save invalid file.");
return false;
}
if(!d->contentDescriptionObject) {
d->contentDescriptionObject = new FilePrivate::ContentDescriptionObject();
d->objects.append(d->contentDescriptionObject);
}
if(!d->extendedContentDescriptionObject) {
d->extendedContentDescriptionObject = new FilePrivate::ExtendedContentDescriptionObject();
d->objects.append(d->extendedContentDescriptionObject);
}
if(!d->headerExtensionObject) {
d->headerExtensionObject = new FilePrivate::HeaderExtensionObject();
d->objects.append(d->headerExtensionObject);
}
if(!d->metadataObject) {
d->metadataObject = new FilePrivate::MetadataObject();
d->headerExtensionObject->objects.append(d->metadataObject);
}
if(!d->metadataLibraryObject) {
d->metadataLibraryObject = new FilePrivate::MetadataLibraryObject();
d->headerExtensionObject->objects.append(d->metadataLibraryObject);
}
d->extendedContentDescriptionObject->attributeData.clear();
d->metadataObject->attributeData.clear();
d->metadataLibraryObject->attributeData.clear();
const AttributeListMap allAttributes = d->tag->attributeListMap();
for(AttributeListMap::ConstIterator it = allAttributes.begin(); it != allAttributes.end(); ++it) {
const String &name = it->first;
const AttributeList &attributes = it->second;
bool inExtendedContentDescriptionObject = false;
bool inMetadataObject = false;
for(AttributeList::ConstIterator jt = attributes.begin(); jt != attributes.end(); ++jt) {
const Attribute &attribute = *jt;
const bool largeValue = (attribute.dataSize() > 65535);
const bool guid = (attribute.type() == Attribute::GuidType);
if(!inExtendedContentDescriptionObject && !guid && !largeValue && attribute.language() == 0 && attribute.stream() == 0) {
d->extendedContentDescriptionObject->attributeData.append(attribute.render(name));
inExtendedContentDescriptionObject = true;
}
else if(!inMetadataObject && !guid && !largeValue && attribute.language() == 0 && attribute.stream() != 0) {
d->metadataObject->attributeData.append(attribute.render(name, 1));
inMetadataObject = true;
}
else {
d->metadataLibraryObject->attributeData.append(attribute.render(name, 2));
}
}
}
ByteVector data;
for(List<FilePrivate::BaseObject *>::ConstIterator it = d->objects.begin(); it != d->objects.end(); ++it) {
data.append((*it)->render(this));
}
seek(16);
writeBlock(ByteVector::fromLongLong(data.size() + 30, false));
writeBlock(ByteVector::fromUInt(d->objects.size(), false));
writeBlock(ByteVector("\x01\x02", 2));
insert(data, 30, static_cast<unsigned long>(d->headerSize - 30));
d->headerSize = data.size() + 30;
return true;
}
////////////////////////////////////////////////////////////////////////////////
// private members
////////////////////////////////////////////////////////////////////////////////
void ASF::File::read()
{
if(!isValid())
return;
if(readBlock(16) != headerGuid) {
debug("ASF::File::read(): Not an ASF file.");
setValid(false);
return;
}
d->tag = new ASF::Tag();
d->properties = new ASF::Properties();
bool ok;
d->headerSize = readQWORD(this, &ok);
if(!ok) {
setValid(false);
return;
}
int numObjects = readDWORD(this, &ok);
if(!ok) {
setValid(false);
return;
}
seek(2, Current);
FilePrivate::FilePropertiesObject *filePropertiesObject = 0;
FilePrivate::StreamPropertiesObject *streamPropertiesObject = 0;
for(int i = 0; i < numObjects; i++) {
const ByteVector guid = readBlock(16);
if(guid.size() != 16) {
setValid(false);
break;
}
long size = (long)readQWORD(this, &ok);
if(!ok) {
setValid(false);
break;
}
FilePrivate::BaseObject *obj;
if(guid == filePropertiesGuid) {
filePropertiesObject = new FilePrivate::FilePropertiesObject();
obj = filePropertiesObject;
}
else if(guid == streamPropertiesGuid) {
streamPropertiesObject = new FilePrivate::StreamPropertiesObject();
obj = streamPropertiesObject;
}
else if(guid == contentDescriptionGuid) {
d->contentDescriptionObject = new FilePrivate::ContentDescriptionObject();
obj = d->contentDescriptionObject;
}
else if(guid == extendedContentDescriptionGuid) {
d->extendedContentDescriptionObject = new FilePrivate::ExtendedContentDescriptionObject();
obj = d->extendedContentDescriptionObject;
}
else if(guid == headerExtensionGuid) {
d->headerExtensionObject = new FilePrivate::HeaderExtensionObject();
obj = d->headerExtensionObject;
}
else if(guid == codecListGuid) {
obj = new FilePrivate::CodecListObject();
}
else {
if(guid == contentEncryptionGuid ||
guid == extendedContentEncryptionGuid ||
guid == advancedContentEncryptionGuid) {
d->properties->setEncrypted(true);
}
obj = new FilePrivate::UnknownObject(guid);
}
obj->parse(this, size);
d->objects.append(obj);
}
if(!filePropertiesObject || !streamPropertiesObject) {
debug("ASF::File::read(): Missing mandatory header objects.");
setValid(false);
return;
}
}
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