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// Copyright (C) 2024 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#include "qffmpegioutils_p.h"
#include "qiodevice.h"
#include "qffmpegdefs_p.h"
QT_BEGIN_NAMESPACE
namespace QFFmpeg {
int readQIODevice(void *opaque, uint8_t *buf, int buf_size)
{
auto *dev = static_cast<QIODevice *>(opaque);
Q_ASSERT(dev);
if (dev->atEnd())
return AVERROR_EOF;
return dev->read(reinterpret_cast<char *>(buf), buf_size);
}
int writeQIODevice(void *opaque, AvioWriteBufferType buf, int buf_size)
{
auto dev = static_cast<QIODevice *>(opaque);
Q_ASSERT(dev);
return dev->write(reinterpret_cast<const char *>(buf), buf_size);
}
int64_t seekQIODevice(void *opaque, int64_t offset, int whence)
{
QIODevice *dev = static_cast<QIODevice *>(opaque);
Q_ASSERT(dev);
if (dev->isSequential())
return AVERROR(EINVAL);
if (whence & AVSEEK_SIZE)
return dev->size();
whence &= ~AVSEEK_FORCE;
if (whence == SEEK_CUR)
offset += dev->pos();
else if (whence == SEEK_END)
offset += dev->size();
if (!dev->seek(offset))
return AVERROR(EINVAL);
return offset;
}
} // namespace QFFmpeg
QT_END_NAMESPACE
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