OpenShot Library | libopenshot 0.2.7
Public Member Functions | Public Attributes | List of all members
openshot::Stabilizer Class Reference

This class stabilizes a video clip to remove undesired shaking and jitter. More...

#include <effects/Stabilizer.h>

Inheritance diagram for openshot::Stabilizer:
openshot::EffectBase openshot::ClipBase

Public Member Functions

std::shared_ptr< openshot::FrameGetFrame (int64_t frame_number) override
 This method is required for all derived classes of ClipBase, and returns a new openshot::Frame object. All Clip keyframes and effects are resolved into pixels. More...
 
std::shared_ptr< FrameGetFrame (std::shared_ptr< Frame > frame, int64_t frame_number) override
 This method is required for all derived classes of EffectBase, and returns a modified openshot::Frame object. More...
 
std::string Json () const override
 Generate JSON string of this object. More...
 
Json::Value JsonValue () const override
 Generate Json::Value for this object. More...
 
bool LoadStabilizedData (std::string inputFilePath)
 Load protobuf data file. More...
 
std::string PropertiesJSON (int64_t requested_frame) const override
 
void SetJson (const std::string value) override
 Load JSON string into this object. More...
 
void SetJsonValue (const Json::Value root) override
 Load Json::Value into this object. More...
 
 Stabilizer ()
 
 Stabilizer (std::string clipTrackerDataPath)
 Blank constructor, useful when using Json to load the effect properties. More...
 
- Public Member Functions inherited from openshot::EffectBase
int constrain (int color_value)
 Constrain a color value from 0 to 255. More...
 
void DisplayInfo ()
 Display effect information in the standard output stream (stdout) More...
 
virtual std::string GetVisibleObjects (int64_t frame_number) const
 Get the indexes and IDs of all visible objects in the given frame. More...
 
void InitEffectInfo ()
 
virtual std::string Json () const
 Generate JSON string of this object. More...
 
virtual std::string Json (int64_t requested_frame) const
 
Json::Value JsonInfo () const
 Generate JSON object of meta data / info. More...
 
virtual Json::Value JsonValue () const
 Generate Json::Value for this object. More...
 
int Order () const
 Get the order that this effect should be executed. More...
 
void Order (int new_order)
 Set the order that this effect should be executed. More...
 
openshot::ClipBaseParentClip ()
 Parent clip object of this effect (which can be unparented and NULL) More...
 
void ParentClip (openshot::ClipBase *new_clip)
 Set parent clip object of this effect. More...
 
std::string ParentClipId () const
 Return the ID of this effect's parent clip. More...
 
virtual void SetJson (const std::string value)
 Load JSON string into this object. More...
 
virtual void SetJson (int64_t requested_frame, const std::string value)
 
virtual void SetJsonValue (const Json::Value root)
 Load Json::Value into this object. More...
 
void SetParentEffect (std::string parentEffect_id)
 Set the parent effect from which this properties will be set to. More...
 
virtual ~EffectBase ()=default
 
- Public Member Functions inherited from openshot::ClipBase
 ClipBase ()
 Constructor for the base clip. More...
 
float Duration () const
 Get the length of this clip (in seconds) More...
 
float End () const
 Get end position (in seconds) of clip (trim end of video) More...
 
void End (float value)
 Set end position (in seconds) of clip (trim end of video) More...
 
virtual std::shared_ptr< openshot::FrameGetFrame (int64_t frame_number)=0
 This method is required for all derived classes of ClipBase, and returns a new openshot::Frame object. All Clip keyframes and effects are resolved into pixels. More...
 
virtual std::shared_ptr< openshot::FrameGetFrame (std::shared_ptr< openshot::Frame > frame, int64_t frame_number)=0
 This method is required for all derived classes of ClipBase, and returns a modified openshot::Frame object. More...
 
std::string Id () const
 Get the Id of this clip object. More...
 
void Id (std::string value)
 
virtual std::string Json () const =0
 Generate JSON string of this object. More...
 
virtual Json::Value JsonValue () const =0
 Generate Json::Value for this object. More...
 
int Layer () const
 Get layer of clip on timeline (lower number is covered by higher numbers) More...
 
void Layer (int value)
 Set layer of clip on timeline (lower number is covered by higher numbers) More...
 
bool operator< (ClipBase &a)
 
bool operator<= (ClipBase &a)
 
bool operator> (ClipBase &a)
 
bool operator>= (ClipBase &a)
 
openshot::TimelineBaseParentTimeline ()
 Get the associated Timeline pointer (if any) More...
 
void ParentTimeline (openshot::TimelineBase *new_timeline)
 Set associated Timeline pointer. More...
 
float Position () const
 Get position on timeline (in seconds) More...
 
void Position (float value)
 

‍Set the Id of this clip object

More...
 
virtual std::string PropertiesJSON (int64_t requested_frame) const =0
 
virtual void SetJson (const std::string value)=0
 Load JSON string into this object. More...
 
virtual void SetJsonValue (const Json::Value root)=0
 Load Json::Value into this object. More...
 
float Start () const
 Get start position (in seconds) of clip (trim start of video) More...
 
void Start (float value)
 Set start position (in seconds) of clip (trim start of video) More...
 
virtual ~ClipBase ()=default
 

Public Attributes

std::string teste
 
std::map< size_t, EffectCamTrajectorytrajectoryData
 
std::map< size_t, EffectTransformParamtransformationData
 
- Public Attributes inherited from openshot::EffectBase
EffectInfoStruct info
 Information about the current effect. More...
 
EffectBaseparentEffect
 Parent effect (which properties will set this effect properties) More...
 
std::map< int, std::shared_ptr< openshot::TrackedObjectBase > > trackedObjects
 Map of Tracked Object's by their indices (used by Effects that track objects on clips) More...
 
- Public Attributes inherited from openshot::ClipBase
CacheMemory cache
 

Additional Inherited Members

- Protected Member Functions inherited from openshot::ClipBase
Json::Value add_property_choice_json (std::string name, int value, int selected_value) const
 Generate JSON choice for a property (dropdown properties) More...
 
Json::Value add_property_json (std::string name, float value, std::string type, std::string memo, const Keyframe *keyframe, float min_value, float max_value, bool readonly, int64_t requested_frame) const
 Generate JSON for a property. More...
 
- Protected Attributes inherited from openshot::EffectBase
openshot::ClipBaseclip
 Pointer to the parent clip instance (if any) More...
 
- Protected Attributes inherited from openshot::ClipBase
float end
 The position in seconds to end playing (used to trim the ending of a clip) More...
 
std::string id
 ID Property for all derived Clip and Effect classes. More...
 
int layer
 The layer this clip is on. Lower clips are covered up by higher clips. More...
 
float position
 The position on the timeline where this clip should start playing. More...
 
std::string previous_properties
 This string contains the previous JSON properties. More...
 
float start
 The position in seconds to start playing (used to trim the beginning of a clip) More...
 
openshot::TimelineBasetimeline
 Pointer to the parent timeline instance (if any) More...
 

Detailed Description

This class stabilizes a video clip to remove undesired shaking and jitter.

Adding stabilization is useful to increase video quality overall, since it removes from subtle to harsh unexpected camera movements.

Definition at line 85 of file Stabilizer.h.

Constructor & Destructor Documentation

◆ Stabilizer() [1/2]

Stabilizer::Stabilizer ( )

Definition at line 54 of file Stabilizer.cpp.

◆ Stabilizer() [2/2]

Stabilizer::Stabilizer ( std::string  clipTrackerDataPath)

Blank constructor, useful when using Json to load the effect properties.

Definition at line 45 of file Stabilizer.cpp.

Member Function Documentation

◆ GetFrame() [1/2]

std::shared_ptr< openshot::Frame > openshot::Stabilizer::GetFrame ( int64_t  frame_number)
inlineoverridevirtual

This method is required for all derived classes of ClipBase, and returns a new openshot::Frame object. All Clip keyframes and effects are resolved into pixels.

Returns
A new openshot::Frame object
Parameters
frame_numberThe frame number (starting at 1) of the clip or effect on the timeline.

Implements openshot::ClipBase.

Definition at line 113 of file Stabilizer.h.

◆ GetFrame() [2/2]

std::shared_ptr< Frame > Stabilizer::GetFrame ( std::shared_ptr< Frame frame,
int64_t  frame_number 
)
overridevirtual

This method is required for all derived classes of EffectBase, and returns a modified openshot::Frame object.

The frame object is passed into this method, and a frame_number is passed in which tells the effect which settings to use from its keyframes (starting at 1).

Returns
The modified openshot::Frame object
Parameters
frameThe frame object that needs the effect applied to it
frame_numberThe frame number (starting at 1) of the effect on the timeline.

Implements openshot::ClipBase.

Definition at line 79 of file Stabilizer.cpp.

Referenced by GetFrame().

◆ Json()

std::string Stabilizer::Json ( ) const
overridevirtual

Generate JSON string of this object.

Reimplemented from openshot::EffectBase.

Definition at line 173 of file Stabilizer.cpp.

◆ JsonValue()

Json::Value Stabilizer::JsonValue ( ) const
overridevirtual

Generate Json::Value for this object.

Reimplemented from openshot::EffectBase.

Definition at line 180 of file Stabilizer.cpp.

Referenced by Json().

◆ LoadStabilizedData()

bool Stabilizer::LoadStabilizedData ( std::string  inputFilePath)

Load protobuf data file.

Definition at line 122 of file Stabilizer.cpp.

Referenced by SetJsonValue(), and Stabilizer().

◆ PropertiesJSON()

std::string Stabilizer::PropertiesJSON ( int64_t  requested_frame) const
overridevirtual

Get all properties for a specific frame (perfect for a UI to display the current state of all properties at any time)

Implements openshot::ClipBase.

Definition at line 229 of file Stabilizer.cpp.

◆ SetJson()

void Stabilizer::SetJson ( const std::string  value)
overridevirtual

Load JSON string into this object.

Reimplemented from openshot::EffectBase.

Definition at line 193 of file Stabilizer.cpp.

◆ SetJsonValue()

void Stabilizer::SetJsonValue ( const Json::Value  root)
overridevirtual

Load Json::Value into this object.

Reimplemented from openshot::EffectBase.

Definition at line 210 of file Stabilizer.cpp.

Referenced by SetJson().

Member Data Documentation

◆ teste

std::string openshot::Stabilizer::teste

Definition at line 94 of file Stabilizer.h.

◆ trajectoryData

std::map<size_t,EffectCamTrajectory> openshot::Stabilizer::trajectoryData

Definition at line 95 of file Stabilizer.h.

Referenced by LoadStabilizedData().

◆ transformationData

std::map<size_t,EffectTransformParam> openshot::Stabilizer::transformationData

Definition at line 96 of file Stabilizer.h.

Referenced by GetFrame(), and LoadStabilizedData().


The documentation for this class was generated from the following files: