OpenShot Library | libopenshot
0.1.9
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This class uses the ImageMagick++ libraries, to open image files, and return openshot::Frame objects containing the image. More...
#include <ImageReader.h>
Public Member Functions | |
void | Close () |
Close File. More... | |
CacheMemory * | GetCache () |
Get the cache object used by this reader (always returns NULL for this object) More... | |
std::shared_ptr< Frame > | GetFrame (int64_t requested_frame) |
ImageReader (string path) | |
ImageReader (string path, bool inspect_reader) | |
bool | IsOpen () |
Determine if reader is open or closed. More... | |
string | Json () |
Get and Set JSON methods. More... | |
Json::Value | JsonValue () |
Generate Json::JsonValue for this object. More... | |
string | Name () |
Return the type name of the class. More... | |
void | Open () |
Open File - which is called by the constructor automatically. More... | |
void | SetJson (string value) |
Load JSON string into this object. More... | |
void | SetJsonValue (Json::Value root) |
Load Json::JsonValue into this object. More... | |
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void | DisplayInfo () |
Display file information in the standard output stream (stdout) More... | |
ReaderBase () | |
Constructor for the base reader, where many things are initialized. More... | |
void | SetMaxSize (int width, int height) |
Set Max Image Size (used for performance optimization) More... | |
Additional Inherited Members | |
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ReaderInfo | info |
Information about the current media file. More... | |
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CriticalSection | getFrameCriticalSection |
Section lock for multiple threads. More... | |
int | max_height |
The maximium image height needed by this clip (used for optimizations) More... | |
int | max_width |
The maximum image width needed by this clip (used for optimizations) More... | |
CriticalSection | processingCriticalSection |
This class uses the ImageMagick++ libraries, to open image files, and return openshot::Frame objects containing the image.
Definition at line 67 of file ImageReader.h.
ImageReader::ImageReader | ( | string | path | ) |
Constructor for ImageReader. This automatically opens the media file and loads frame 1, or it throws one of the following exceptions.
Definition at line 32 of file ImageReader.cpp.
ImageReader::ImageReader | ( | string | path, |
bool | inspect_reader | ||
) |
Constructor for ImageReader. This only opens the media file to inspect it's properties if inspect_reader=true. When not inspecting the media file, it's much faster, and useful when you are inflating the object using JSON after instantiating it.
Definition at line 39 of file ImageReader.cpp.
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virtual |
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inlinevirtual |
Get the cache object used by this reader (always returns NULL for this object)
Implements openshot::ReaderBase.
Definition at line 89 of file ImageReader.h.
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virtual |
Get an openshot::Frame object for a specific frame number of this reader. All numbers return the same Frame, since they all share the same image data.
requested_frame | The frame number that is requested. |
Implements openshot::ReaderBase.
Definition at line 116 of file ImageReader.cpp.
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inlinevirtual |
Determine if reader is open or closed.
Implements openshot::ReaderBase.
Definition at line 99 of file ImageReader.h.
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virtual |
Get and Set JSON methods.
Generate JSON string of this object
Implements openshot::ReaderBase.
Definition at line 133 of file ImageReader.cpp.
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virtual |
Generate Json::JsonValue for this object.
Implements openshot::ReaderBase.
Definition at line 140 of file ImageReader.cpp.
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inlinevirtual |
Return the type name of the class.
Implements openshot::ReaderBase.
Definition at line 102 of file ImageReader.h.
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virtual |
Open File - which is called by the constructor automatically.
Implements openshot::ReaderBase.
Definition at line 49 of file ImageReader.cpp.
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virtual |
Load JSON string into this object.
Implements openshot::ReaderBase.
Definition at line 152 of file ImageReader.cpp.
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virtual |
Load Json::JsonValue into this object.
Implements openshot::ReaderBase.
Definition at line 175 of file ImageReader.cpp.