CuteLogger
Fast and simple logging solution for Qt based applications
mltcontroller.h
1/*
2 * Copyright (c) 2011-2024 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 MLTCONTROLLER_H
19#define MLTCONTROLLER_H
20
21#include "transportcontrol.h"
22
23#include <Mlt.h>
24#include <QImage>
25#include <QMutex>
26#include <QScopedPointer>
27#include <QString>
28#include <QTemporaryFile>
29#include <QUuid>
30
31// forward declarations
32class QQuickView;
33
34#define MLT_LC_CATEGORY LC_ALL
35#define MLT_LC_NAME "LC_ALL"
36
37#if LIBMLT_VERSION_INT >= ((7 << 16) + (19 << 8))
38#define kAudioIndexProperty "astream"
39#define kVideoIndexProperty "vstream"
40#else
41#define kAudioIndexProperty "audio_index"
42#define kVideoIndexProperty "video_index"
43#endif
44
45namespace Mlt {
46
47const int kMaxImageDurationSecs = 3600 * 4;
48extern const QString XmlMimeType;
49
50class TransportControl : public TransportControllable
51{
52 Q_OBJECT
53public slots:
54 void play(double speed = 1.0) override;
55 void pause(int position = -1) override;
56 void stop() override;
57 void seek(int position) override;
58 void rewind(bool forceChangeDirection) override;
59 void fastForward(bool forceChangeDirection) override;
60 void previous(int currentPosition) override;
61 void next(int currentPosition) override;
62 void setIn(int) override;
63 void setOut(int) override;
64};
65
66class Controller
67{
68protected:
69 Controller();
70 virtual int reconfigure(bool isMulti) = 0;
71
72public:
73 enum {
74 FILTER_INDEX_ALL = -1,
75 FILTER_INDEX_ENABLED = -2,
76 };
77
78 static Controller &singleton(QObject *parent = nullptr);
79 virtual ~Controller();
80 static void destroy();
81
82 virtual QObject *videoWidget() = 0;
83 virtual int setProducer(Mlt::Producer *, bool isMulti = false);
84 virtual int open(const QString &url, const QString &urlToSave, bool skipConvert = false);
85 bool openXML(const QString &filename);
86 virtual void close();
87 virtual int displayWidth() const = 0;
88 virtual int displayHeight() const = 0;
89
90 void closeConsumer();
91 virtual void play(double speed = 1.0);
92 bool isPaused() const;
93 virtual void pause(int position = -1);
94 void stop();
95 bool enableJack(bool enable = true);
96 void setVolume(double volume, bool muteOnPause = true);
97 double volume() const;
98 void onWindowResize();
99 virtual void seek(int position);
100 virtual void refreshConsumer(bool scrubAudio = false);
101 bool saveXML(const QString &filename,
102 Service *service = nullptr,
103 bool withRelativePaths = true,
104 QTemporaryFile *tempFile = nullptr,
105 bool proxy = false,
106 QString projectNote = QString());
107 QString XML(Service *service = nullptr, bool withProfile = false, bool withMetadata = true);
108 int consumerChanged();
109 void setProfile(const QString &profile_name);
110 void setAudioChannels(int audioChannels);
111 QString resource() const;
112 bool isSeekable(Mlt::Producer *p = nullptr) const;
113 bool isLiveProducer(Mlt::Producer *p = nullptr) const;
114 bool isClip() const;
115 bool isClosedClip(Producer *producer = nullptr) const;
116 bool isSeekableClip();
117 bool isPlaylist() const;
118 bool isMultitrack() const;
119 bool isImageProducer(Service *service) const;
120 bool isFileProducer(Service *service) const;
121 void rewind(bool forceChangeDirection);
122 void fastForward(bool forceChangeDirection);
123 void previous(int currentPosition);
124 void next(int currentPosition);
125 void setIn(int);
126 void setOut(int);
127 void fixLengthProperties(Service &service);
128 void restart(const QString &xml = "");
129 void resetURL();
130 QImage image(Frame *frame, int width, int height);
131 QImage image(Mlt::Producer &producer, int frameNumber, int width, int height);
132 void updateAvformatCaching(int trackCount);
133 bool isAudioFilter(const QString &name);
134 int realTime() const;
135 void setImageDurationFromDefault(Service *service) const;
136 void setDurationFromDefault(Producer *service) const;
137 void lockCreationTime(Producer *producer) const;
138 Producer *setupNewProducer(Producer *newProducer) const;
139 QUuid uuid(Mlt::Properties &properties) const;
140 void setUuid(Mlt::Properties &properties, QUuid uid) const;
141 QUuid ensureHasUuid(Mlt::Properties &properties) const;
142 static void copyFilters(Mlt::Producer &fromProducer,
143 Mlt::Producer &toProducer,
144 bool fromClipboard = false,
145 int filterIndex = FILTER_INDEX_ENABLED);
146 void copyFilters(Mlt::Producer *producer = nullptr, int filterIndex = FILTER_INDEX_ENABLED);
147 void pasteFilters(Mlt::Producer *producer = nullptr, Mlt::Producer *fromProducer = nullptr);
148 static void adjustFilters(Mlt::Producer &producer, int startIndex = 0);
149 static void adjustFilter(
150 Mlt::Filter *filter, int in, int out, int inDelta, int outDelta, int keyframeDelta);
151 static void adjustClipFilters(
152 Mlt::Producer &producer, int in, int out, int inDelta, int outDelta, int keyframeDelta);
153 bool hasFiltersOnClipboard() const
154 {
155 return m_filtersClipboard->is_valid() && m_filtersClipboard->filter_count() > 0;
156 }
157 QString filtersClipboardXML() { return XML(m_filtersClipboard.get()); }
158
159 int audioChannels() const { return m_audioChannels; }
160 Mlt::Repository *repository() const { return m_repo; }
161 Mlt::Profile &profile() { return m_profile; }
162 Mlt::Profile &previewProfile() { return m_previewProfile; }
163 Mlt::Producer *producer() const { return m_producer.data(); }
164 Mlt::Consumer *consumer() const { return m_consumer.data(); }
165 const QString &URL() const { return m_url; }
166 const TransportControllable *transportControl() const { return &m_transportControl; }
167 Mlt::Producer *savedProducer() const { return m_savedProducer.data(); }
168 void setSavedProducer(Mlt::Producer *producer);
169 static Mlt::Filter *getFilter(const QString &name, Mlt::Service *service);
170 QString projectFolder() const { return m_projectFolder; }
171 void setProjectFolder(const QString &folderName);
172 QChar decimalPoint();
173 static void resetLocale();
174 static int filterIn(Mlt::Playlist &playlist, int clipIndex);
175 static int filterOut(Mlt::Playlist &playlist, int clipIndex);
176 void setPreviewScale(int scale);
177 void updatePreviewProfile();
178 static void purgeMemoryPool();
179 static bool fullRange(Mlt::Producer &producer);
180 static bool isMltXml(const QString &s) { return s.contains("<mlt "); }
181 static bool isTrackProducer(Mlt::Producer &producer);
182 static int checkFile(const QString &path);
183 bool blockRefresh(bool block);
184
185 class RefreshBlocker
186 {
187 public:
188 RefreshBlocker() { singleton().blockRefresh(true); }
189 ~RefreshBlocker() { singleton().blockRefresh(false); }
190 };
191
192protected:
193 Mlt::Repository *m_repo;
194 QScopedPointer<Mlt::Producer> m_producer;
195 QScopedPointer<Mlt::FilteredConsumer> m_consumer;
196
197private:
198 Mlt::Profile m_profile;
199 Mlt::Profile m_previewProfile;
200 int m_audioChannels{2};
201 QScopedPointer<Mlt::Filter> m_jackFilter;
202 QString m_url;
203 double m_volume{1.0};
204 TransportControl m_transportControl;
205 QScopedPointer<Mlt::Producer> m_savedProducer;
206 QScopedPointer<Mlt::Producer> m_filtersClipboard;
207 unsigned m_skipJackEvents{0};
208 QString m_projectFolder;
209 QMutex m_saveXmlMutex;
210 bool m_blockRefresh;
211
212 static void on_jack_started(mlt_properties owner, void *object, mlt_event_data data);
213 void onJackStarted(int position);
214 static void on_jack_stopped(mlt_properties owner, void *object, mlt_event_data data);
215 void onJackStopped(int position);
216 void stopJack();
217 void initFiltersClipboard();
218};
219
220} // namespace Mlt
221
222#define MLT Mlt::Controller::singleton()
223
224#endif // MLTCONTROLLER_H