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// Copyright (C) 2021 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
#ifndef QFFMPEGMEDIADATAHOLDER_P_H
#define QFFMPEGMEDIADATAHOLDER_P_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists purely as an
// implementation detail. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
#include "qmediametadata.h"
#include "private/qplatformmediaplayer_p.h"
#include "qffmpeg_p.h"
#include "qvideoframe.h"
#include <private/qmultimediautils_p.h>
#include <array>
#include <optional>
QT_BEGIN_NAMESPACE
namespace QFFmpeg {
struct ICancelToken
{
virtual ~ICancelToken() = default;
virtual bool isCancelled() const = 0;
};
using AVFormatContextUPtr = std::unique_ptr<AVFormatContext, AVDeleter<decltype(&avformat_close_input), &avformat_close_input>>;
class MediaDataHolder
{
public:
struct StreamInfo
{
int avStreamIndex = -1;
bool isDefault = false;
QMediaMetaData metaData;
};
struct ContextError
{
int code = 0;
QString description;
};
using StreamsMap = std::array<QList<StreamInfo>, QPlatformMediaPlayer::NTrackTypes>;
using StreamIndexes = std::array<int, QPlatformMediaPlayer::NTrackTypes>;
MediaDataHolder() = default;
MediaDataHolder(AVFormatContextUPtr context, const std::shared_ptr<ICancelToken> &cancelToken);
static QPlatformMediaPlayer::TrackType trackTypeFromMediaType(int mediaType);
int activeTrack(QPlatformMediaPlayer::TrackType type) const;
const QList<StreamInfo> &streamInfo(QPlatformMediaPlayer::TrackType trackType) const;
qint64 duration() const { return m_duration; }
const QMediaMetaData &metaData() const { return m_metaData; }
bool isSeekable() const { return m_isSeekable; }
QtVideo::Rotation rotation() const;
AVFormatContext *avContext();
int currentStreamIndex(QPlatformMediaPlayer::TrackType trackType) const;
using Maybe = QMaybe<QSharedPointer<MediaDataHolder>, ContextError>;
static Maybe create(const QUrl &url, QIODevice *stream,
const std::shared_ptr<ICancelToken> &cancelToken);
bool setActiveTrack(QPlatformMediaPlayer::TrackType type, int streamNumber);
private:
void updateMetaData();
std::shared_ptr<ICancelToken> m_cancelToken; // NOTE: Cancel token may be accessed by
// AVFormatContext during destruction and
// must outlive the context object
AVFormatContextUPtr m_context;
bool m_isSeekable = false;
StreamIndexes m_currentAVStreamIndex = { -1, -1, -1 };
StreamsMap m_streamMap;
StreamIndexes m_requestedStreams = { -1, -1, -1 };
qint64 m_duration = 0;
QMediaMetaData m_metaData;
std::optional<QImage> m_cachedThumbnail;
};
} // namespace QFFmpeg
QT_END_NAMESPACE
#endif // QFFMPEGMEDIADATAHOLDER_P_H
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