+ /**
+ * @brief Gets the default size of the file.
+ *
+ * @param[out] width The default width of the file
+ * @param[out] height The default height of the file
+ */
+ void GetDefaultSize(uint32_t& width, uint32_t& height) const;
+
+ /**
+ * @brief Gets the layer information of all the child layers.
+ *
+ * @param[out] map The layer information
+ */
+ void GetLayerInfo(Property::Map& map) const;
+
+ /**
+ * @brief Gets the start frame and the end frame number of the composition marker.
+ *
+ * @param[in] marker The composition marker of the file
+ * @param[out] startFrame The start frame number of the specified marker
+ * @param[out] endFrame The end frame number of the specified marker
+ * @return True if the marker is found in the file, false otherwise.
+ *
+ * @note https://helpx.adobe.com/after-effects/using/layer-markers-composition-markers.html
+ * Markers exported from AfterEffect are used to describe a segment of an animation {comment/tag , startFrame, endFrame}
+ * Marker can be use to devide a resource in to separate animations by tagging the segment with comment string,
+ * start frame and duration of that segment.
+ */
+ bool GetMarkerInfo(const std::string& marker, uint32_t& startFrame, uint32_t& endFrame) const;
+
+ /**
+ * @brief Gets the all composition marker informations.
+ *
+ * @param[out] map The marker information
+ */
+ void GetMarkerInfo(Property::Map& map) const;
+
+ /**
+ * @brief Invalidates the rendered buffer.
+ * @note The upload completed signal will be emitted again.
+ */
+ void InvalidateBuffer();
+
+ /**
+ * @brief Sets property value for the specified keyPath. This keyPath can resolve to multiple contents.
+ * In that case, the callback's value will apply to all of them.
+ *
+ * @param[in] keyPath The key path used to target a specific content or a set of contents that will be updated.
+ * @param[in] property The property to set.
+ * @param[in] callback The callback that gets called every time the animation is rendered.
+ * @param[in] id The Id to specify the callback. It should be unique and will be passed when the callback is called.
+ *
+ * @note A callback of the following type may be used:
+ * id The id to specify the callback.
+ * property The property that represent what you are trying to change.
+ * frameNumber The current frame number.
+ * It returns a Property::Value to set according to the property type.
+ *
+ * @code
+ * Property::Value MyFunction(int32_t id, VectorProperty property, uint32_t frameNumber);
+ * @endcode
+ *
+ * The keypath should contain object names separated by (.) and can handle globe(**) or wildchar(*).
+ * Ownership of the callback is passed onto this class.
+ */
+ void AddPropertyValueCallback(const std::string& keyPath, VectorProperty property, CallbackBase* callback, int32_t id);
+
+ /**
+ * @brief Keep the rasterized buffer to use the frame cache.
+ *
+ * By default, only as much as needed is kept in the rasterized buffer and not kept after use.
+ * tis API is efficient in terms of memory, but has the disadvantage of having to load the necessary buffer each time.
+ * therefore, if there are cases in which you want to improve the performance even if the app sacrifices a lot of memory, this API is useful.
+ */
+ void KeepRasterizedBuffer();
+