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/****************************************************************************
**
** Copyright (C) 2021 The Qt Company Ltd and/or its subsidiary(-ies).
** Contact: https://www.qt.io/licensing/
**
** This file is part of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:COMM$
**
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** $QT_END_LICENSE$
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
****************************************************************************/
#include "avfstoragelocation.h"
#include "QtCore/qstandardpaths.h"
QT_BEGIN_NAMESPACE
AVFStorageLocation::AVFStorageLocation()
{
}
AVFStorageLocation::~AVFStorageLocation()
{
}
/*!
* Generate the actual file name from user requested one.
* requestedName may be either empty (the default dir and naming theme is used),
* points to existing dir (the default name used)
* or specify the full actual path.
*/
QString AVFStorageLocation::generateFileName(const QString &requestedName,
QCamera::CaptureMode mode,
const QString &prefix,
const QString &ext) const
{
if (requestedName.isEmpty())
return generateFileName(prefix, defaultDir(mode), ext);
if (QFileInfo(requestedName).isDir())
return generateFileName(prefix, QDir(requestedName), ext);
return requestedName;
}
QDir AVFStorageLocation::defaultDir(QCamera::CaptureMode mode) const
{
QStringList dirCandidates;
if (mode == QCamera::CaptureVideo) {
dirCandidates << QStandardPaths::writableLocation(QStandardPaths::MoviesLocation);
} else {
dirCandidates << QStandardPaths::writableLocation(QStandardPaths::PicturesLocation);
}
dirCandidates << QStandardPaths::writableLocation(QStandardPaths::DocumentsLocation);
dirCandidates << QDir::homePath();
dirCandidates << QDir::currentPath();
dirCandidates << QDir::tempPath();
for (const QString &path : qAsConst(dirCandidates)) {
if (QFileInfo(path).isWritable())
return QDir(path);
}
return QDir();
}
QString AVFStorageLocation::generateFileName(const QString &prefix, const QDir &dir, const QString &ext) const
{
QString lastClipKey = dir.absolutePath()+QLatin1Char(' ')+prefix+QLatin1Char(' ')+ext;
int lastClip = m_lastUsedIndex.value(lastClipKey, 0);
if (lastClip == 0) {
//first run, find the maximum clip number during the fist capture
const auto list = dir.entryList(QStringList() << QString("%1*.%2").arg(prefix).arg(ext));
for (const QString &fileName : list) {
int imgNumber = fileName.midRef(prefix.length(), fileName.size()-prefix.length()-ext.length()-1).toInt();
lastClip = qMax(lastClip, imgNumber);
}
}
//don't just rely on cached lastClip value,
//someone else may create a file after camera started
while (true) {
QString name = QString("%1%2.%3").arg(prefix)
.arg(lastClip+1,
4, //fieldWidth
10,
QLatin1Char('0'))
.arg(ext);
QString path = dir.absoluteFilePath(name);
if (!QFileInfo(path).exists()) {
m_lastUsedIndex[lastClipKey] = lastClip+1;
return path;
}
lastClip++;
}
return QString();
}
QT_END_NAMESPACE
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