CuteLogger
Fast and simple logging solution for Qt based applications
multitrackmodel.h
1/*
2 * Copyright (c) 2013-2022 Meltytech, LLC
3 *
4 * This program is free software: you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation, either version 3 of the License, or
7 * (at your option) any later version.
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program. If not, see <http://www.gnu.org/licenses/>.
16 */
17
18#ifndef MULTITRACKMODEL_H
19#define MULTITRACKMODEL_H
20
21#include <QAbstractItemModel>
22#include <QList>
23#include <QString>
24#include <MltTractor.h>
25#include <MltPlaylist.h>
26#include <memory>
27
28typedef enum {
29 PlaylistTrackType = 0,
30 BlackTrackType,
31 SilentTrackType,
32 AudioTrackType,
33 VideoTrackType
34} TrackType;
35
36typedef struct {
37 TrackType type;
38 int number;
39 int mlt_index;
40} Track;
41
42typedef QList<Track> TrackList;
43
44class MultitrackModel : public QAbstractItemModel
45{
46 Q_OBJECT
47 Q_PROPERTY(int trackHeight READ trackHeight WRITE setTrackHeight NOTIFY trackHeightChanged)
48 Q_PROPERTY(double scaleFactor READ scaleFactor WRITE setScaleFactor NOTIFY scaleFactorChanged)
49 Q_PROPERTY(bool filtered READ isFiltered NOTIFY filteredChanged)
50
51public:
53 enum {
54 NameRole = Qt::UserRole + 1,
55 CommentRole,
56 ResourceRole,
57 ServiceRole,
58 IsBlankRole,
59 StartRole,
60 DurationRole,
61 InPointRole,
62 OutPointRole,
63 FramerateRole,
64 IsMuteRole,
65 IsHiddenRole,
66 IsAudioRole,
67 AudioLevelsRole,
68 IsCompositeRole,
69 IsLockedRole,
70 FadeInRole,
71 FadeOutRole,
72 IsTransitionRole,
73 FileHashRole,
74 SpeedRole,
75 IsFilteredRole,
76 IsTopVideoRole,
77 IsBottomVideoRole,
78 IsTopAudioRole,
79 IsBottomAudioRole,
80 AudioIndexRole
81 };
82
83 explicit MultitrackModel(QObject *parent = 0);
84 ~MultitrackModel();
85
86 Mlt::Tractor *tractor() const
87 {
88 return m_tractor;
89 }
90 const TrackList &trackList() const
91 {
92 return m_trackList;
93 }
94
95 int rowCount(const QModelIndex &parent = QModelIndex()) const;
96 int columnCount(const QModelIndex &parent) const;
97 QVariant data(const QModelIndex &index, int role) const;
98 QModelIndex index(int row, int column = 0,
99 const QModelIndex &parent = QModelIndex()) const;
100 QModelIndex makeIndex(int trackIndex, int clipIndex) const;
101 QModelIndex parent(const QModelIndex &index) const;
102 QHash<int, QByteArray> roleNames() const;
103 Q_INVOKABLE void audioLevelsReady(const QModelIndex &index);
104 bool createIfNeeded();
105 void addBackgroundTrack();
106 int addAudioTrack();
107 int addVideoTrack();
108 void removeTrack(int trackIndex);
109 void load();
110 void close();
111 int clipIndex(int trackIndex, int position);
112 bool trimClipInValid(int trackIndex, int clipIndex, int delta, bool ripple);
113 bool trimClipOutValid(int trackIndex, int clipIndex, int delta, bool ripple);
114 int trackHeight() const;
115 void setTrackHeight(int height);
116 double scaleFactor() const;
117 void setScaleFactor(double scale);
118 bool isTransition(Mlt::Playlist &playlist, int clipIndex) const;
119 void insertTrack(int trackIndex, TrackType type = VideoTrackType);
120 void moveTrack(int fromTrackIndex, int toTrackIndex);
121 void insertOrAdjustBlankAt(QList<int> tracks, int position, int length);
122 bool mergeClipWithNext(int trackIndex, int clipIndex, bool dryrun);
123 std::unique_ptr<Mlt::ClipInfo> findClipByUuid(const QUuid &uuid, int &trackIndex, int &clipIndex);
124 std::unique_ptr<Mlt::ClipInfo> getClipInfo(int trackIndex, int clipIndex);
125 QString getTrackName(int trackIndex);
126 int bottomVideoTrackIndex() const;
127 int mltIndexForTrack(int trackIndex) const;
128
129signals:
130 void created();
131 void loaded();
132 void closed();
133 void modified();
134 void seeked(int position, bool seekPlayer = true);
135 void trackHeightChanged();
136 void scaleFactorChanged();
137 void showStatusMessage(QString);
138 void durationChanged();
139 void filteredChanged();
140 void reloadRequested();
141 void appended(int trackIndex, int clipIndex);
142 void inserted(int trackIndex, int clipIndex);
143 void overWritten(int trackIndex, int clipIndex);
144
145public slots:
146 void refreshTrackList();
147 void setTrackName(int row, const QString &value);
148 void setTrackMute(int row, bool mute);
149 void setTrackHidden(int row, bool hidden);
150 void setTrackComposite(int row, bool composite);
151 void setTrackLock(int row, bool lock);
152 int trimClipIn(int trackIndex, int clipIndex, int delta, bool ripple, bool rippleAllTracks);
153 void notifyClipIn(int trackIndex, int clipIndex);
154 int trimClipOut(int trackIndex, int clipIndex, int delta, bool ripple, bool rippleAllTracks);
155 void notifyClipOut(int trackIndex, int clipIndex);
156 bool moveClip(int fromTrack, int toTrack, int clipIndex, int position, bool ripple,
157 bool rippleAllTracks);
158 int overwriteClip(int trackIndex, Mlt::Producer &clip, int position, bool seek = true);
159 QString overwrite(int trackIndex, Mlt::Producer &clip, int position, bool seek = true,
160 bool notify = true);
161 int insertClip(int trackIndex, Mlt::Producer &clip, int position, bool rippleAllTracks,
162 bool seek = true, bool notify = true);
163 int appendClip(int trackIndex, Mlt::Producer &clip);
164 void removeClip(int trackIndex, int clipIndex, bool rippleAllTracks);
165 void liftClip(int trackIndex, int clipIndex);
166 void splitClip(int trackIndex, int clipIndex, int position);
167 void joinClips(int trackIndex, int clipIndex);
168 void fadeIn(int trackIndex, int clipIndex, int duration);
169 void fadeOut(int trackIndex, int clipIndex, int duration);
170 bool addTransitionValid(int fromTrack, int toTrack, int clipIndex, int position, bool ripple);
171 int addTransition(int trackIndex, int clipIndex, int position, bool ripple, bool rippleAllTracks);
172 void removeTransition(int trackIndex, int clipIndex);
173 void removeTransitionByTrimIn(int trackIndex, int clipIndex, int delta);
174 void removeTransitionByTrimOut(int trackIndex, int clipIndex, int delta);
175 bool trimTransitionInValid(int trackIndex, int clipIndex, int delta);
176 void trimTransitionIn(int trackIndex, int clipIndex, int delta);
177 bool trimTransitionOutValid(int trackIndex, int clipIndex, int delta);
178 void trimTransitionOut(int trackIndex, int clipIndex, int delta);
179 bool addTransitionByTrimInValid(int trackIndex, int clipIndex, int delta);
180 int addTransitionByTrimIn(int trackIndex, int clipIndex, int delta);
181 bool addTransitionByTrimOutValid(int trackIndex, int clipIndex, int delta);
182 void addTransitionByTrimOut(int trackIndex, int clipIndex, int delta);
183 bool removeTransitionByTrimInValid(int trackIndex, int clipIndex, int delta);
184 bool removeTransitionByTrimOutValid(int trackIndex, int clipIndex, int delta);
185 void filterAddedOrRemoved(Mlt::Producer *producer);
186 void onFilterChanged(Mlt::Service *service);
187 void reload(bool asynchronous = false);
188 void replace(int trackIndex, int clipIndex, Mlt::Producer &clip, bool copyFilters = true);
189
190private:
191 Mlt::Tractor *m_tractor;
192 TrackList m_trackList;
193 bool m_isMakingTransition;
194
195 void moveClipToEnd(Mlt::Playlist &playlist, int trackIndex, int clipIndex, int position,
196 bool ripple, bool rippleAllTracks);
197 void moveClipInBlank(Mlt::Playlist &playlist, int trackIndex, int clipIndex, int position,
198 bool ripple, bool rippleAllTracks, int duration = 0);
199 void consolidateBlanks(Mlt::Playlist &playlist, int trackIndex);
200 void consolidateBlanksAllTracks();
201 void getAudioLevels();
202 void addBlackTrackIfNeeded();
203 void convertOldDoc();
204 Mlt::Transition *getTransition(const QString &name, int trackIndex) const;
205 Mlt::Filter *getFilter(const QString &name, int trackIndex) const;
206 Mlt::Filter *getFilter(const QString &name, Mlt::Service *service) const;
207 void removeBlankPlaceholder(Mlt::Playlist &playlist, int trackIndex);
208 void retainPlaylist();
209 void loadPlaylist();
210 void removeRegion(int trackIndex, int position, int length);
211 void clearMixReferences(int trackIndex, int clipIndex);
212 bool isFiltered(Mlt::Producer *producer = 0) const;
213 int getDuration();
214 void adjustServiceFilterDurations(Mlt::Service &service, int duration);
215 bool warnIfInvalid(Mlt::Service &service);
216 Mlt::Transition *getVideoBlendTransition(int trackIndex) const;
217 void refreshVideoBlendTransitions();
218 int bottomVideoTrackMltIndex() const;
219
220 friend class UndoHelper;
221
222private slots:
223 void adjustBackgroundDuration();
224 void adjustTrackFilters();
225};
226
227#endif // MULTITRACKMODEL_H