31 #ifndef OPENSHOT_CLIPBASE_H
32 #define OPENSHOT_CLIPBASE_H
59 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;
76 std::string
Id()
const {
return id; }
84 void Id(std::string value) {
id = value; }
88 void End(
float value) {
end = value; }
91 virtual std::string
Json()
const = 0;
92 virtual void SetJson(
const std::string value) = 0;
93 virtual Json::Value
JsonValue()
const = 0;
Header file for all Exception classes.
Header file for JSON class.
Header file for the Keyframe class.
Header file for Point class.
This abstract class is the base class, used by all clips in libopenshot.
float End() const
Get end position (in seconds) of clip (trim end of video)
float Start() const
Get start position (in seconds) of clip (trim start of video)
float start
The position in seconds to start playing (used to trim the beginning of a clip)
float Duration() const
Get the length of this clip (in seconds)
virtual std::string Json() const =0
Get and Set JSON methods.
virtual std::string PropertiesJSON(int64_t requested_frame) const =0
bool operator>=(ClipBase &a)
std::string Id() const
Get basic properties.
virtual Json::Value JsonValue() const =0
Generate Json::Value for this object.
Json::Value add_property_choice_json(std::string name, int value, int selected_value) const
Generate JSON choice for a property (dropdown properties)
void Id(std::string value)
Set basic properties.
bool operator<=(ClipBase &a)
int Layer() const
Get layer of clip on timeline (lower number is covered by higher numbers)
ClipBase()
Constructor for the base clip.
virtual void SetJsonValue(const Json::Value root)=0
Load Json::Value into this object.
int layer
The layer this clip is on. Lower clips are covered up by higher clips.
void Start(float value)
Set start position (in seconds) of clip (trim start of video)
float Position() const
Get position on timeline (in seconds)
bool operator>(ClipBase &a)
std::string id
ID Property for all derived Clip and Effect classes.
void Layer(int value)
Set layer of clip on timeline (lower number is covered by higher numbers)
float position
The position on the timeline where this clip should start playing.
virtual void SetJson(const std::string value)=0
Load JSON string into this object.
float end
The position in seconds to end playing (used to trim the ending of a clip)
void Position(float value)
Set the Id of this clip object
bool operator<(ClipBase &a)
void End(float value)
Set end position (in seconds) of clip (trim end of video)
virtual ~ClipBase()=default
std::string previous_properties
This string contains the previous JSON properties.
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.
A Keyframe is a collection of Point instances, which is used to vary a number or property over time.
This namespace is the default namespace for all code in the openshot library.