31 #ifndef OPENSHOT_TIMELINE_H
32 #define OPENSHOT_TIMELINE_H
37 #include <QtGui/QImage>
38 #include <QtGui/QPainter>
152 std::list<Clip*> clips;
153 std::list<Clip*> closing_clips;
154 std::map<Clip*, Clip*> open_clips;
155 std::list<EffectBase*> effects;
157 std::set<FrameMapper*> allocated_frame_mappers;
161 void add_layer(std::shared_ptr<Frame> new_frame,
Clip* source_clip, int64_t clip_frame_number, int64_t timeline_frame_number,
bool is_top_clip,
float max_volume);
164 void apply_mapper_to_clip(
Clip* clip);
167 void apply_json_to_clips(Json::Value change);
168 void apply_json_to_effects(Json::Value change);
169 void apply_json_to_effects(Json::Value change,
EffectBase* existing_effect);
170 void apply_json_to_timeline(Json::Value change);
173 double calculate_time(int64_t number,
Fraction rate);
181 std::vector<Clip*> find_intersecting_clips(int64_t requested_frame,
int number_of_frames,
bool include);
184 std::shared_ptr<Frame> GetOrCreateFrame(
Clip* clip, int64_t number);
187 std::shared_ptr<Frame> apply_effects(std::shared_ptr<Frame> frame, int64_t timeline_frame_number,
int layer);
190 bool isEqual(
double a,
double b);
199 void update_open_clips(
Clip *clip,
bool does_clip_intersect);
235 std::list<Clip*>
Clips() {
return clips; };
241 std::list<EffectBase*>
Effects() {
return effects; };
254 std::shared_ptr<Frame>
GetFrame(int64_t requested_frame);
268 std::string
Name() {
return "Timeline"; };
271 std::string
Json()
const override;
272 void SetJson(
const std::string value);
Header file for CacheBase class.
Header file for CacheDisk class.
Header file for CacheMemory class.
Header file for Clip class.
Header file for Color class.
Header file for CrashHandler class.
Header file for EffectBase class.
Header file for the EffectInfo class.
This header includes all commonly used effects for libopenshot, for ease-of-use.
Header file for Fraction class.
Header file for the FrameMapper class.
Header file for Frame class.
Header file for the Keyframe class.
Header file for OpenMPUtilities (set some common macros)
Header file for Point class.
Header file for ReaderBase class.
Header file for global Settings class.
All cache managers in libopenshot are based on this CacheBase class.
int Layer() const
Get layer of clip on timeline (lower number is covered by higher numbers)
float Position() const
Get position on timeline (in seconds)
This class represents a clip (used to arrange readers on the timeline)
This class represents a color (used on the timeline and clips)
This abstract class is the base class, used by all effects in libopenshot.
int Order() const
Get the order that this effect should be executed.
This class represents a fraction.
A Keyframe is a collection of Point instances, which is used to vary a number or property over time.
This abstract class is the base class, used by all readers in libopenshot.
This class represents a timeline.
void SetJson(const std::string value)
Load JSON string into this object.
Json::Value JsonValue() const override
Generate Json::Value for this object.
std::string Name()
Return the type name of the class.
void AddEffect(EffectBase *effect)
Add an effect to the timeline.
void ApplyJsonDiff(std::string value)
Apply a special formatted JSON object, which represents a change to the timeline (add,...
void Close()
Close the timeline reader (and any resources it was consuming)
Timeline(int width, int height, Fraction fps, int sample_rate, int channels, ChannelLayout channel_layout)
Default Constructor for the timeline (which sets the canvas width and height and FPS)
void AutoMapClips(bool auto_map)
Automatically map all clips to the timeline's framerate and samplerate.
void Open()
Open the reader (and start consuming resources)
std::string Json() const override
Get and Set JSON methods.
bool AutoMapClips()
Determine if clips are automatically mapped to the timeline's framerate and samplerate.
void ClearAllCache()
Clear all cache for this timeline instance, and all clips, mappers, and readers under it.
void ApplyMapperToClips()
Apply the timeline's framerate and samplerate to all clips.
void AddClip(Clip *clip)
Add an openshot::Clip to the timeline.
void SetJsonValue(const Json::Value root)
Load Json::Value into this object.
Keyframe viewport_x
Curve representing the x coordinate for the viewport.
Color color
Background color of timeline canvas.
CacheBase * GetCache()
Get the cache object used by this reader.
Keyframe viewport_y
Curve representing the y coordinate for the viewport.
void RemoveEffect(EffectBase *effect)
Remove an effect from the timeline.
bool IsOpen()
Determine if reader is open or closed.
Keyframe viewport_scale
Curve representing the scale of the viewport (0 to 100)
void RemoveClip(Clip *clip)
Remove an openshot::Clip from the timeline.
std::list< Clip * > Clips()
Return a list of clips on the timeline.
std::shared_ptr< Frame > GetFrame(int64_t requested_frame)
std::list< EffectBase * > Effects()
Return the list of effects on the timeline.
void SetCache(CacheBase *new_cache)
void SetMaxSize(int width, int height)
This namespace is the default namespace for all code in the openshot library.
ChannelLayout
This enumeration determines the audio channel layout (such as stereo, mono, 5 point surround,...
bool operator()(Clip *lhs, Clip *rhs)
bool operator()(EffectBase *lhs, EffectBase *rhs)