1 | // Copyright (C) 2021 The Qt Company Ltd. |
2 | // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only |
3 | |
4 | #ifndef QFFMPEGMEDIADATAHOLDER_P_H |
5 | #define QFFMPEGMEDIADATAHOLDER_P_H |
6 | |
7 | // |
8 | // W A R N I N G |
9 | // ------------- |
10 | // |
11 | // This file is not part of the Qt API. It exists purely as an |
12 | // implementation detail. This header file may change from version to |
13 | // version without notice, or even be removed. |
14 | // |
15 | // We mean it. |
16 | // |
17 | |
18 | #include "qmediametadata.h" |
19 | #include <QtFFmpegMediaPluginImpl/private/qffmpegtime_p.h> |
20 | #include <QtMultimedia/private/qplatformmediaplayer_p.h> |
21 | #include <QtFFmpegMediaPluginImpl/private/qffmpeg_p.h> |
22 | #include "qvideoframe.h" |
23 | #include <QtMultimedia/private/qmultimediautils_p.h> |
24 | |
25 | #include <array> |
26 | #include <optional> |
27 | |
28 | QT_BEGIN_NAMESPACE |
29 | |
30 | namespace QFFmpeg { |
31 | |
32 | struct ICancelToken |
33 | { |
34 | virtual ~ICancelToken() = default; |
35 | virtual bool isCancelled() const = 0; |
36 | }; |
37 | |
38 | using AVFormatContextUPtr = std::unique_ptr<AVFormatContext, AVDeleter<decltype(&avformat_close_input), &avformat_close_input>>; |
39 | |
40 | class MediaDataHolder |
41 | { |
42 | public: |
43 | struct StreamInfo |
44 | { |
45 | int avStreamIndex = -1; |
46 | bool isDefault = false; |
47 | QMediaMetaData metaData; |
48 | }; |
49 | |
50 | struct ContextError |
51 | { |
52 | int code = 0; |
53 | QString description; |
54 | }; |
55 | |
56 | using StreamsMap = std::array<QList<StreamInfo>, QPlatformMediaPlayer::NTrackTypes>; |
57 | using StreamIndexes = std::array<int, QPlatformMediaPlayer::NTrackTypes>; |
58 | |
59 | MediaDataHolder() = default; |
60 | MediaDataHolder(AVFormatContextUPtr context, const std::shared_ptr<ICancelToken> &cancelToken); |
61 | |
62 | static QPlatformMediaPlayer::TrackType trackTypeFromMediaType(int mediaType); |
63 | |
64 | int activeTrack(QPlatformMediaPlayer::TrackType type) const; |
65 | |
66 | const QList<StreamInfo> &streamInfo(QPlatformMediaPlayer::TrackType trackType) const; |
67 | |
68 | TrackDuration duration() const { return m_duration; } |
69 | |
70 | const QMediaMetaData &metaData() const { return m_metaData; } |
71 | |
72 | bool isSeekable() const { return m_isSeekable; } |
73 | |
74 | VideoTransformation transformation() const; |
75 | |
76 | AVFormatContext *avContext(); |
77 | |
78 | int currentStreamIndex(QPlatformMediaPlayer::TrackType trackType) const; |
79 | |
80 | using Maybe = QMaybe<QSharedPointer<MediaDataHolder>, ContextError>; |
81 | static Maybe create(const QUrl &url, QIODevice *stream, |
82 | const std::shared_ptr<ICancelToken> &cancelToken); |
83 | |
84 | bool setActiveTrack(QPlatformMediaPlayer::TrackType type, int streamNumber); |
85 | |
86 | private: |
87 | void updateMetaData(); |
88 | |
89 | std::shared_ptr<ICancelToken> m_cancelToken; // NOTE: Cancel token may be accessed by |
90 | // AVFormatContext during destruction and |
91 | // must outlive the context object |
92 | AVFormatContextUPtr m_context; |
93 | |
94 | bool m_isSeekable = false; |
95 | |
96 | StreamIndexes m_currentAVStreamIndex = { -1, -1, -1 }; |
97 | StreamsMap m_streamMap; |
98 | StreamIndexes m_requestedStreams = { -1, -1, -1 }; |
99 | TrackDuration m_duration = TrackDuration(0); |
100 | QMediaMetaData m_metaData; |
101 | std::optional<QImage> m_cachedThumbnail; |
102 | }; |
103 | |
104 | } // namespace QFFmpeg |
105 | |
106 | QT_END_NAMESPACE |
107 | |
108 | #endif // QFFMPEGMEDIADATAHOLDER_P_H |
109 | |