#include <QGst/Structure>
Public Member Functions | |
| Structure | copy () const |
 Public Member Functions inherited from QGst::Structure | |
| Structure (const char *name) | |
| Structure (const GstStructure *structure) | |
| Structure (const Structure &other) | |
| Structure & | operator= (const Structure &other) |
| bool | isValid () const |
| QString | name () const |
| void | setName (const char *name) |
| QGlib::Value | value (const char *fieldName) const |
| template<typename T > | |
| void | setValue (const char *fieldName, const T &value) |
| void | setValue (const char *fieldName, const QGlib::Value &value) |
| unsigned int | numberOfFields () const |
| QString | fieldName (unsigned int fieldNumber) const |
| QGlib::Type | fieldType (const char *fieldName) const |
| bool | hasField (const char *fieldName) const |
| bool | hasFieldTyped (const char *fieldName, QGlib::Type type) const |
| void | removeField (const char *fieldName) |
| void | removeAllFields () |
| QString | toString () const |
| operator GstStructure * () | |
| operator const GstStructure * () const | |
Additional Inherited Members | |
| Static Public Member Functions inherited from QGst::Structure | |
| static Structure | fromString (const char *str) |
| static Structure | fromString (const QString &str) |
| Related Functions inherited from QGst::Structure | |
| QDebug | operator<< (QDebug debug, const Structure &structure) |
Detailed Description
Helper for shared GstStructure instances.
This class serves as a helper for wrapping shared GstStructure instances. Some functions in the GStreamer API return a pointer to some internal GstStructure and expect you to change this internal instance, not copy it and re-set it using some setter function (like all normal object-oriented APIs do), so it is necessary to have way of accessing those instances.
This class wraps a GstStructure without copying it and without freeing it from the destructor, unlike Structure, which always keeps a GstStructure instance for itself. In addition to that, this class also holds a reference to the GstStructure's parent object, so that it doesn't accidentally get deleted because its smart pointer has gone out of scope.
Since this class is not copy-able (to prevent misuse), to ease using it, there is a StructurePtr typedef for QSharedPointer<SharedStructure> available. You should only use this class through StructurePtr and not directly.
- See also
- Structure, Caps::internalStructure
Definition at line 129 of file structure.h.
Member Function Documentation
◆ copy()
| Structure QGst::SharedStructure::copy | ( | ) | const |
- Returns
- a deep copy of the structure
Definition at line 225 of file structure.cpp.
The documentation for this class was generated from the following files:
- QGst/structure.h
- QGst/structure.cpp
