AVBlocks for C++
1.13
Audio and Video Software Development Kit
|
MetaPictureList represents the meta pictures inside a Metadata object. More...
Inherits Reference.
Public Member Functions | |
virtual MetaPicture * | at (int32_t index) const =0 |
Returns a picture by index. More... | |
virtual void | add (MetaPicture *picture)=0 |
Adds a new picture to the end of the list. More... | |
virtual int32_t | count () const =0 |
Returns the number of pictures in the list. More... | |
virtual void | clear ()=0 |
Removes all pictures from the collection. More... | |
virtual bool_t | remove (int32_t index)=0 |
Removes a picture by index. More... | |
virtual bool_t | insert (int32_t itemIndex, MetaPicture *picture)=0 |
Inserts a picture at the specified index in the list. More... | |
virtual bool_t | setAt (int32_t itemIndex, MetaPicture *picture)=0 |
Sets a new picture at the specified index. More... | |
Public Member Functions inherited from Reference | |
virtual int32_t | retain () const =0 |
Retains the instance. More... | |
virtual int32_t | release () const =0 |
Releases the instance. More... | |
virtual int32_t | retainCount () const =0 |
Returns the current reference count. More... | |
Protected Member Functions | |
virtual | ~MetaPictureList () |
This object can be destroyed only by the library that has created it. More... | |
MetaPictureList represents the meta pictures inside a Metadata object.
This is a modifiable and indexable collection that exists only in the context of a Metadata object and cannot be created separately from it, nor detached.
|
protectedvirtual |
This object can be destroyed only by the library that has created it.
|
pure virtual |
Adds a new picture to the end of the list.
picture | [in] A pointer to a MetaPicture object. It is allowed to add a NULL item to the collection. Internally if the MetaPicture object is not NULL it is retained, so it is safe to release it after this method returns. |
|
pure virtual |
Returns a picture by index.
index | [in] A zero-based index. |
The caller is not required to release the returned object.
|
pure virtual |
Removes all pictures from the collection.
When removed from the collection each MetaPicture object is released.
|
pure virtual |
Returns the number of pictures in the list.
|
pure virtual |
Inserts a picture at the specified index in the list.
itemIndex | [in] The index in the collection where the new item shall be inserted. This must be a valid index in the collection. Indexing starts from 0. After the new item is inserted in the collection its index is the value of the itemIndex param. |
picture | [in] A pointer to the MetaPicture object that shall be inserted. It is allowed to insert a NULL value in the collection. Internally the new item is retained (if not NULL), so it is safe to release it after this method returns. |
|
pure virtual |
Removes a picture by index.
index | [in] A zero-based index of the picture that shall be removed. When the MetaPicture object is removed it is released. |
|
pure virtual |
Sets a new picture at the specified index.
itemIndex | [in] The index in the collection where the new item shall be set. This must be a valid index in the collection. Indexing starts from 0. |
picture | [in] A pointer to the MetaPicture object that shall be set. It is allowed to set a NULL value to the collection. Internally the new item is retained (if not NULL), so it is safe to release it after this method returns. The old item is released (if not NULL). |