qffmpegioutils.cpp

Enable keyboard shortcuts

// 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