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#include "library/coverart.h"
#include "library/coverartutils.h"
#include "util/debug.h"
#include "util/logger.h"
namespace {
mixxx::Logger kLogger("CoverArt");
QString sourceToString(CoverInfo::Source source) {
switch (source) {
case CoverInfo::UNKNOWN:
return "UNKNOWN";
case CoverInfo::GUESSED:
return "GUESSED";
case CoverInfo::USER_SELECTED:
return "USER_SELECTED";
}
return "INVALID INFO VALUE";
}
QString typeToString(CoverInfo::Type type) {
switch (type) {
case CoverInfo::NONE:
return "NONE";
case CoverInfo::METADATA:
return "METADATA";
case CoverInfo::FILE:
return "FILE";
}
return "INVALID TYPE VALUE";
}
QString coverInfoRelativeToString(const CoverInfoRelative& infoRelative) {
return typeToString(infoRelative.type) % "," %
sourceToString(infoRelative.source) % "," %
infoRelative.coverLocation % "," %
"0x" % QString::number(infoRelative.hash, 16);
}
QString coverInfoToString(const CoverInfo& info) {
return coverInfoRelativeToString(info) % "," %
info.trackLocation % ",";
}
} // anonymous namespace
//static
quint16 CoverImageUtils::calculateHash(
const QImage& image) {
const auto hash = qChecksum(
reinterpret_cast<const char*>(image.constBits()),
#if QT_VERSION >= QT_VERSION_CHECK(5, 10, 0)
image.sizeInBytes()
#else
image.byteCount()
#endif
);
DEBUG_ASSERT(image.isNull() || isValidHash(hash));
DEBUG_ASSERT(!image.isNull() || hash == defaultHash());
return hash;
}
CoverInfoRelative::CoverInfoRelative()
: source(UNKNOWN),
type(NONE),
hash(CoverImageUtils::defaultHash()) {
}
bool operator==(const CoverInfoRelative& a, const CoverInfoRelative& b) {
return a.source == b.source &&
a.type == b.type &&
a.hash == b.hash &&
a.coverLocation == b.coverLocation;
}
bool operator!=(const CoverInfoRelative& a, const CoverInfoRelative& b) {
return !(a == b);
}
QDebug operator<<(QDebug dbg, const CoverInfoRelative& infoRelative) {
return dbg.maybeSpace() << QString("CoverInfoRelative(%1)")
.arg(coverInfoRelativeToString(infoRelative));
}
QImage CoverInfo::loadImage(
const SecurityTokenPointer& pTrackLocationToken) const {
if (type == CoverInfo::METADATA) {
VERIFY_OR_DEBUG_ASSERT(!trackLocation.isEmpty()) {
kLogger.warning()
<< "loadImage"
<< type
<< "cover with empty trackLocation";
return QImage();
}
return CoverArtUtils::extractEmbeddedCover(
TrackFile(trackLocation),
pTrackLocationToken);
} else if (type == CoverInfo::FILE) {
auto coverFile = QFileInfo(coverLocation);
if (coverFile.isRelative()) {
VERIFY_OR_DEBUG_ASSERT(!trackLocation.isEmpty()) {
// This is not expected to happen, because every track
// must have a valid location, i.e. a file path. Most
// likely a programming error, but might also be caused
// by yet unknown circumstances.
kLogger.warning()
<< "loadImage"
<< type
<< "cover with empty track location"
<< "and relative file path:"
<< coverFile.filePath();
return QImage();
}
// Compose track directory with relative path
const auto trackFile = TrackFile(trackLocation);
DEBUG_ASSERT(trackFile.asFileInfo().isAbsolute());
coverFile = QFileInfo(
trackFile.directory(),
coverLocation);
}
DEBUG_ASSERT(coverFile.isAbsolute());
if (!coverFile.exists()) {
// Disabled because this code can cause high CPU and thus possibly
// xruns as it might print the warning repeatedly.
// ToDo: Print warning about missing cover image only once.
// kLogger.warning()
// << "loadImage"
// << type
// << "cover does not exist:"
// << coverFile.filePath();
return QImage();
}
SecurityTokenPointer pToken =
Sandbox::openSecurityToken(
coverFile,
true);
return QImage(coverFile.filePath());
} else if (type == CoverInfo::NONE) {
return QImage();
} else {
DEBUG_ASSERT(!"unhandled CoverInfo::Type");
return QImage();
}
}
bool CoverInfo::refreshImageHash(
const QImage& loadedImage,
const SecurityTokenPointer& pTrackLocationToken) {
if (CoverImageUtils::isValidHash(hash)) {
// Trust that a valid hash has been calculated from the
// corresponding image. Otherwise we would refresh all
// hashes over and over again.
return false;
}
QImage image = loadedImage;
if (loadedImage.isNull()) {
image = loadImage(pTrackLocationToken);
}
if (image.isNull() && type != CoverInfo::NONE) {
kLogger.warning()
<< "Resetting cover info"
<< *this;
reset();
return true;
}
hash = CoverImageUtils::calculateHash(image);
DEBUG_ASSERT(image.isNull() || CoverImageUtils::isValidHash(hash));
DEBUG_ASSERT(!image.isNull() || hash == CoverImageUtils::defaultHash());
return true;
}
bool operator==(const CoverInfo& a, const CoverInfo& b) {
return static_cast<const CoverInfoRelative&>(a) ==
static_cast<const CoverInfoRelative&>(b) &&
a.trackLocation == b.trackLocation;
}
bool operator!=(const CoverInfo& a, const CoverInfo& b) {
return !(a == b);
}
QDebug operator<<(QDebug dbg, const CoverInfo& info) {
return dbg.maybeSpace() << QString("CoverInfo(%1)")
.arg(coverInfoToString(info));
}
QDebug operator<<(QDebug dbg, const CoverArt& art) {
return dbg.maybeSpace() << QString("CoverArt(%1,%2,%3)")
.arg(coverInfoToString(art),
toDebugString(art.image.size()),
QString::number(art.resizedToWidth));
}
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