OpenShot Library | libopenshot  0.7.0
Public Member Functions | Public Attributes | List of all members
openshot::Timer Class Reference

#include <effects/Timer.h>

Inheritance diagram for openshot::Timer:
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Collaboration diagram for openshot::Timer:
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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< openshot::FrameGetFrame (std::shared_ptr< openshot::Frame > frame, int64_t frame_number) override
 This method is required for all derived classes of ClipBase, 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...
 
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...
 
 Timer ()
 
double TimerSeconds (int64_t frame_number) const
 
std::string TimerText (int64_t frame_number) const
 
- Public Member Functions inherited from openshot::EffectBase
Json::Value BasePropertiesJSON (int64_t requested_frame) const
 Generate JSON object of base properties (recommended to be used by all effects) More...
 
int constrain (int color_value)
 Constrain a color value from 0 to 255. More...
 
void DisplayInfo (std::ostream *out=&std::cout)
 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 (int64_t requested_frame) const
 
Json::Value JsonInfo () const
 Generate JSON object of meta data / info. More...
 
ReaderBaseMaskReader ()
 Get the common mask reader. More...
 
const ReaderBaseMaskReader () const
 
void MaskReader (ReaderBase *new_reader)
 Set or replace the common mask reader. More...
 
std::string MaskSourceId () const
 Get/Set effect ID used as a generated mask source. More...
 
void MaskSourceId (const std::string &new_mask_source_id)
 
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...
 
std::shared_ptr< openshot::FrameProcessFrame (std::shared_ptr< openshot::Frame > frame, int64_t frame_number)
 Apply effect processing with common mask support (if enabled). More...
 
virtual void SetJson (int64_t requested_frame, const std::string value)
 
void SetParentEffect (std::string parentEffect_id)
 Set the parent effect from which this properties will be set to. More...
 
virtual std::shared_ptr< QImage > TrackedObjectMask (std::shared_ptr< QImage > target_image, int64_t frame_number) const
 Generate a black/white mask from tracked object data. More...
 
virtual ~EffectBase ()
 
- Public Member Functions inherited from openshot::ClipBase
 ClipBase ()
 Constructor for the base clip. More...
 
virtual void End (float value)
 Set end position (in seconds) of clip (trim end of video) More...
 
void Id (std::string value)
 
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)
 
void Position (float value)
 

Set the Id of this clip object

More...
 
void Start (float value)
 Set start position (in seconds) of clip (trim start of video) More...
 
virtual ~ClipBase ()=default
 

Public Attributes

Color background
 
Keyframe background_alpha
 
Keyframe background_corner
 
Keyframe background_padding
 
int clamp
 
Color color
 
Keyframe end_time
 
Keyframe font_alpha
 
std::string font_name
 
Keyframe font_size
 
int format
 
int gravity
 
int mode
 
std::string prefix
 
int show_background
 
Keyframe start_time
 
Color stroke
 
Keyframe stroke_width
 
std::string suffix
 
int time_source
 
Keyframe x_offset
 
Keyframe y_offset
 
- Public Attributes inherited from openshot::EffectBase
EffectInfoStruct info
 Information about the current effect. More...
 
bool mask_invert = false
 Invert grayscale mask values before blending. More...
 
int mask_loop_mode = MASK_LOOP_PLAY_ONCE
 Behavior when mask range reaches the end. More...
 
int mask_time_mode = MASK_TIME_SOURCE_FPS
 How effect frames map to mask source frames. 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...
 

Additional Inherited Members

- Public Types inherited from openshot::EffectBase
enum  MaskLoopMode { MASK_LOOP_PLAY_ONCE = 0, MASK_LOOP_REPEAT = 1, MASK_LOOP_PING_PONG = 2 }
 
enum  MaskTimeMode { MASK_TIME_TIMELINE = 0, MASK_TIME_SOURCE_FPS = 1 }
 
- Protected Member Functions inherited from openshot::EffectBase
virtual void ApplyCustomMaskBlend (std::shared_ptr< QImage > original_image, std::shared_ptr< QImage > effected_image, std::shared_ptr< QImage > mask_image, int64_t frame_number) const
 Optional override for effects with custom mask implementation. More...
 
ReaderBaseCreateReaderFromJson (const Json::Value &reader_json) const
 Create a reader instance from reader JSON. More...
 
virtual bool HandlesMaskInternally () const
 Optional override for effects that apply mask processing inside GetFrame(). More...
 
int64_t MapMaskFrameNumber (int64_t frame_number)
 Convert an effect frame number to a mask source frame number. More...
 
double ResolveMaskHostFps ()
 Determine host FPS used to convert timeline frames to mask source FPS. More...
 
std::shared_ptr< QImage > ResolveMaskImage (std::shared_ptr< QImage > target_image, int64_t frame_number)
 Resolve a cached/scaled mask image for the target frame dimensions. More...
 
double ResolveMaskSourceDuration () const
 Determine mask source duration in seconds. More...
 
virtual bool UseCustomMaskBlend (int64_t frame_number) const
 Optional override for effects that need custom mask behavior. More...
 
- 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

Definition at line 49 of file Timer.h.

Constructor & Destructor Documentation

◆ Timer()

Timer::Timer ( )

Definition at line 47 of file Timer.cpp.

Member Function Documentation

◆ GetFrame() [1/2]

std::shared_ptr<openshot::Frame> openshot::Timer::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 86 of file Timer.h.

Referenced by GetFrame().

◆ GetFrame() [2/2]

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

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

The frame object is passed into this method and used as a starting point / background (pixels). All Clip keyframes and effects are resolved into pixels.

Returns
The modified openshot::Frame object
Parameters
frameThis is ignored on Clip, due to caching optimizations. This frame instance is clobbered with the source frame.
frame_numberThe frame number (starting at 1) of the clip or effect on the timeline.

Implements openshot::ClipBase.

Definition at line 244 of file Timer.cpp.

◆ Json()

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

Generate JSON string of this object.

Reimplemented from openshot::EffectBase.

Definition at line 395 of file Timer.cpp.

◆ JsonValue()

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

Generate Json::Value for this object.

Reimplemented from openshot::EffectBase.

Definition at line 400 of file Timer.cpp.

Referenced by Json().

◆ PropertiesJSON()

std::string Timer::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 492 of file Timer.cpp.

◆ SetJson()

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

Load JSON string into this object.

Reimplemented from openshot::EffectBase.

Definition at line 429 of file Timer.cpp.

◆ SetJsonValue()

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

Load Json::Value into this object.

Reimplemented from openshot::EffectBase.

Definition at line 442 of file Timer.cpp.

Referenced by SetJson().

◆ TimerSeconds()

double Timer::TimerSeconds ( int64_t  frame_number) const

Definition at line 189 of file Timer.cpp.

Referenced by TimerText().

◆ TimerText()

std::string Timer::TimerText ( int64_t  frame_number) const

Definition at line 201 of file Timer.cpp.

Referenced by GetFrame().

Member Data Documentation

◆ background

Color openshot::Timer::background

Definition at line 72 of file Timer.h.

Referenced by GetFrame(), JsonValue(), PropertiesJSON(), and SetJsonValue().

◆ background_alpha

Keyframe openshot::Timer::background_alpha

Definition at line 80 of file Timer.h.

Referenced by GetFrame(), JsonValue(), PropertiesJSON(), and SetJsonValue().

◆ background_corner

Keyframe openshot::Timer::background_corner

Definition at line 82 of file Timer.h.

Referenced by GetFrame(), JsonValue(), PropertiesJSON(), and SetJsonValue().

◆ background_padding

Keyframe openshot::Timer::background_padding

Definition at line 81 of file Timer.h.

Referenced by GetFrame(), JsonValue(), PropertiesJSON(), and SetJsonValue().

◆ clamp

int openshot::Timer::clamp

Definition at line 64 of file Timer.h.

Referenced by JsonValue(), PropertiesJSON(), and SetJsonValue().

◆ color

Color openshot::Timer::color

Definition at line 70 of file Timer.h.

Referenced by GetFrame(), JsonValue(), PropertiesJSON(), and SetJsonValue().

◆ end_time

Keyframe openshot::Timer::end_time

Definition at line 74 of file Timer.h.

Referenced by JsonValue(), PropertiesJSON(), and SetJsonValue().

◆ font_alpha

Keyframe openshot::Timer::font_alpha

Definition at line 76 of file Timer.h.

Referenced by GetFrame(), JsonValue(), PropertiesJSON(), and SetJsonValue().

◆ font_name

std::string openshot::Timer::font_name

Definition at line 67 of file Timer.h.

Referenced by GetFrame(), JsonValue(), PropertiesJSON(), and SetJsonValue().

◆ font_size

Keyframe openshot::Timer::font_size

Definition at line 75 of file Timer.h.

Referenced by GetFrame(), JsonValue(), PropertiesJSON(), and SetJsonValue().

◆ format

int openshot::Timer::format

Definition at line 63 of file Timer.h.

Referenced by GetFrame(), JsonValue(), PropertiesJSON(), SetJsonValue(), and TimerText().

◆ gravity

int openshot::Timer::gravity

Definition at line 65 of file Timer.h.

Referenced by GetFrame(), JsonValue(), PropertiesJSON(), and SetJsonValue().

◆ mode

int openshot::Timer::mode

Definition at line 61 of file Timer.h.

Referenced by GetFrame(), JsonValue(), PropertiesJSON(), SetJsonValue(), TimerSeconds(), and TimerText().

◆ prefix

std::string openshot::Timer::prefix

Definition at line 68 of file Timer.h.

Referenced by JsonValue(), PropertiesJSON(), SetJsonValue(), and TimerText().

◆ show_background

int openshot::Timer::show_background

Definition at line 66 of file Timer.h.

Referenced by GetFrame(), JsonValue(), PropertiesJSON(), and SetJsonValue().

◆ start_time

Keyframe openshot::Timer::start_time

Definition at line 73 of file Timer.h.

Referenced by JsonValue(), PropertiesJSON(), SetJsonValue(), TimerSeconds(), and TimerText().

◆ stroke

Color openshot::Timer::stroke

Definition at line 71 of file Timer.h.

Referenced by GetFrame(), JsonValue(), PropertiesJSON(), and SetJsonValue().

◆ stroke_width

Keyframe openshot::Timer::stroke_width

Definition at line 77 of file Timer.h.

Referenced by GetFrame(), JsonValue(), PropertiesJSON(), and SetJsonValue().

◆ suffix

std::string openshot::Timer::suffix

Definition at line 69 of file Timer.h.

Referenced by JsonValue(), PropertiesJSON(), SetJsonValue(), and TimerText().

◆ time_source

int openshot::Timer::time_source

Definition at line 62 of file Timer.h.

Referenced by JsonValue(), PropertiesJSON(), and SetJsonValue().

◆ x_offset

Keyframe openshot::Timer::x_offset

Definition at line 78 of file Timer.h.

Referenced by GetFrame(), JsonValue(), PropertiesJSON(), and SetJsonValue().

◆ y_offset

Keyframe openshot::Timer::y_offset

Definition at line 79 of file Timer.h.

Referenced by GetFrame(), JsonValue(), PropertiesJSON(), and SetJsonValue().


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