1 /***************************************************************************
2 krender.h - description
4 begin : Fri Nov 22 2002
5 copyright : (C) 2002 by Jason Wood
6 email : jasonwood@blueyonder.co.uk
7 ***************************************************************************/
9 /***************************************************************************
11 * This program is free software; you can redistribute it and/or modify *
12 * it under the terms of the GNU General Public License as published by *
13 * the Free Software Foundation; either version 2 of the License, or *
14 * (at your option) any later version. *
16 ***************************************************************************/
29 #include "definitions.h"
31 /**Render encapsulates the client side of the interface to a renderer.
32 From Kdenlive's point of view, you treat the Render object as the
33 renderer, and simply use it as if it was local. Calls are asyncrhonous -
34 you send a call out, and then receive the return value through the
35 relevant signal that get's emitted once the call completes.
58 class Render: public QObject
62 enum FailStates { OK = 0,
66 Render(const QString & rendererName, int winid, int extid, QWidget *parent = 0);
69 /** Seeks the renderer clip to the given time. */
70 void seek(GenTime time);
71 void seekToFrame(int pos);
74 //static QPixmap getVideoThumbnail(char *profile, QString file, int frame, int width, int height);
75 QPixmap getImageThumbnail(KUrl url, int width, int height);
77 /** Return thumbnail for color clip */
78 //void getImage(int id, QString color, QPoint size);
80 // static QPixmap frameThumbnail(Mlt::Frame *frame, int width, int height, bool border = false);
82 /** Return thumbnail for image clip */
83 //void getImage(KUrl url, QPoint size);
85 /** Requests a particular frame from the given file.
87 * The pixmap will be returned by emitting the replyGetImage() signal.
89 //void getImage(KUrl url, int frame, QPoint size);
92 /** Wraps the VEML command of the same name. Sets the current scene list to
94 void setSceneList(QDomDocument list, int position = 0);
95 void setSceneList(QString playlist, int position = 0);
96 void setProducer(Mlt::Producer *producer, int position);
97 const QString sceneList();
98 bool saveSceneList(QString path, QDomElement kdenliveData = QDomElement());
100 /** Wraps the VEML command of the same name. Tells the renderer to
101 play the current scene at the speed specified, relative to normal
102 playback. e.g. 1.0 is normal speed, 0.0 is paused, -1.0 means play
103 backwards. Does not specify start/stop times for playback.*/
104 void play(double speed);
108 void stop(const GenTime & startTime);
109 void setVolume(double volume);
111 QPixmap extractFrame(int frame_position, int width = -1, int height = -1);
112 /** Wraps the VEML command of the same name. Tells the renderer to
113 play the current scene at the speed specified, relative to normal
114 playback. e.g. 1.0 is normal speed, 0.0 is paused, -1.0 means play
115 backwards. Specifes the start/stop times for playback.*/
116 void play(const GenTime & startTime);
117 void playZone(const GenTime & startTime, const GenTime & stopTime);
118 void loopZone(const GenTime & startTime, const GenTime & stopTime);
120 void saveZone(KUrl url, QString desc, QPoint zone);
122 /** Returns the name of the renderer. */
123 const QString & rendererName() const;
125 /** Returns the speed at which the renderer is currently playing, 0.0 if the renderer is
126 not playing anything. */
128 /** Returns the current seek position of the renderer. */
129 GenTime seekPosition() const;
131 void emitFrameNumber(double position);
132 void emitConsumerStopped();
134 /** Gives the aspect ratio of the consumer */
135 double consumerRatio() const;
137 void askForRefresh();
140 /** Save current producer frame as image */
141 void exportCurrentFrame(KUrl url, bool notify);
143 /** Turn on or off on screen display */
144 void refreshDisplay();
147 int renderWidth() const;
148 int renderHeight() const;
149 /** get display aspect ratio */
152 /** Playlist manipulation */
153 void mltInsertClip(ItemInfo info, QDomElement element, Mlt::Producer *prod);
154 void mltUpdateClip(ItemInfo info, QDomElement element, Mlt::Producer *prod);
155 void mltCutClip(int track, GenTime position);
156 void mltInsertSpace(QMap <int, int> trackClipStartList, QMap <int, int> trackTransitionStartList, int track, const GenTime duration, const GenTime timeOffset);
157 int mltGetSpaceLength(const GenTime pos, int track, bool fromBlankStart);
158 int mltTrackDuration(int track);
159 bool mltResizeClipEnd(ItemInfo info, GenTime clipDuration);
160 bool mltResizeClipStart(ItemInfo info, GenTime diff);
161 bool mltResizeClipCrop(ItemInfo info, GenTime diff);
162 bool mltMoveClip(int startTrack, int endTrack, GenTime pos, GenTime moveStart, Mlt::Producer *prod);
163 bool mltMoveClip(int startTrack, int endTrack, int pos, int moveStart, Mlt::Producer *prod);
164 bool mltRemoveClip(int track, GenTime position);
165 bool mltRemoveEffect(int track, GenTime position, QString index, bool updateIndex, bool doRefresh = true);
166 bool mltAddEffect(int track, GenTime position, EffectsParameterList params, bool doRefresh = true);
167 bool mltEditEffect(int track, GenTime position, EffectsParameterList params);
168 void mltMoveEffect(int track, GenTime position, int oldPos, int newPos);
169 void mltChangeTrackState(int track, bool mute, bool blind);
170 bool mltMoveTransition(QString type, int startTrack, int newTrack, int newTransitionTrack, GenTime oldIn, GenTime oldOut, GenTime newIn, GenTime newOut);
171 bool mltAddTransition(QString tag, int a_track, int b_track, GenTime in, GenTime out, QDomElement xml, bool refresh = true);
172 void mltDeleteTransition(QString tag, int a_track, int b_track, GenTime in, GenTime out, QDomElement xml, bool refresh = true);
173 void mltUpdateTransition(QString oldTag, QString tag, int a_track, int b_track, GenTime in, GenTime out, QDomElement xml);
174 void mltUpdateTransitionParams(QString type, int a_track, int b_track, GenTime in, GenTime out, QDomElement xml);
175 void mltAddClipTransparency(ItemInfo info, int transitiontrack, int id);
176 void mltMoveTransparency(int startTime, int endTime, int startTrack, int endTrack, int id);
177 void mltDeleteTransparency(int pos, int track, int id);
178 void mltResizeTransparency(int oldStart, int newStart, int newEnd, int track, int id);
179 void mltInsertTrack(int ix, bool videoTrack);
180 void mltDeleteTrack(int ix);
181 void mltUpdateClipProducer(int track, int pos, Mlt::Producer *prod);
183 /** Change speed of a clip in playlist. To do this, we create a new "framebuffer" producer.
184 This new producer must have its "resource" param set to: video.mpg?0.6 where video.mpg is the path
185 to the clip and 0.6 is the speed in percents. The newly created producer will have it's
186 "id" parameter set to: "slowmotion:parentid:speed", where parentid is the id of the original clip
187 in the ClipManager list and speed is the current speed */
188 int mltChangeClipSpeed(ItemInfo info, double speed, double oldspeed, Mlt::Producer *prod);
190 QList <Mlt::Producer *> producersList();
191 void updatePreviewSettings();
193 private: // Private attributes & methods
194 /** The name of this renderer - useful to identify the renderes by what they do - e.g. background rendering, workspace monitor, etc... */
196 Mlt::Consumer * m_mltConsumer;
197 Mlt::Producer * m_mltProducer;
198 Mlt::Profile *m_mltProfile;
199 double m_framePosition;
202 /** true if we are playing a zone (ie the in and out properties have been temporarily changed) */
208 /** true when monitor is in split view (several tracks at the same time) */
211 Mlt::Producer *m_blackClip;
212 QString m_activeProfile;
214 QTimer *m_refreshTimer;
217 /** A human-readable description of this renderer. */
220 /** Sets the description of this renderer to desc. */
222 void mltCheckLength();
223 QMap<QString, QString> mltGetTransitionParamsFromXml(QDomElement xml);
224 QMap<QString, Mlt::Producer *> m_slowmotionProducers;
225 void buildConsumer();
226 void resetZoneMode();
227 void fillSlowMotionProducers();
229 private slots: // Private slots
230 /** refresh monitor display */
232 void slotOsdTimeout();
233 void connectPlaylist();
234 //void initSceneList();
237 /** emitted when the renderer recieves a reply to a getFileProperties request. */
238 void replyGetFileProperties(const QString &clipId, Mlt::Producer*, const QMap < QString, QString > &, const QMap < QString, QString > &, bool);
240 /** emitted when the renderer recieves a reply to a getImage request. */
241 void replyGetImage(const QString &, const QPixmap &);
243 /** Emitted when the renderer stops, either playing or rendering. */
245 /** Emitted when the renderer starts playing. */
246 void playing(double);
247 /** Emitted when the renderer is rendering. */
248 void rendering(const GenTime &);
249 /** Emitted when rendering has finished */
250 void renderFinished();
251 /** Emitted when the current seek position has been changed by the renderer. */
252 // void positionChanged(const GenTime &);
253 /** Emitted when an error occurs within this renderer. */
254 void error(const QString &, const QString &);
255 void durationChanged(int);
256 void rendererPosition(int);
257 void rendererStopped(int);
258 void removeInvalidClip(const QString &, bool replaceProducer);
259 void refreshDocumentProducers();
261 public slots: // Public slots
262 /** Start Consumer */
268 /** If the file is readable by mlt, return true, otherwise false */
269 bool isValid(KUrl url);
271 /** Wraps the VEML command of the same name. Requests the file properties
272 for the specified url from the renderer. Upon return, the result will be emitted
273 via replyGetFileProperties(). */
274 void getFileProperties(const QDomElement &xml, const QString &clipId, bool replaceProducer = true);
276 void exportFileToFirewire(QString srcFileName, int port, GenTime startTime, GenTime endTime);
277 static char *decodedString(QString str);
278 void mltSavePlaylist();
279 void slotSplitView(bool doit);