Trait gstreamer::prelude::TagSetterExt[−][src]

pub trait TagSetterExt: 'static {
    fn tag_list(&self) -> Option<TagList>;
    fn tag_merge_mode(&self) -> TagMergeMode;
    fn merge_tags(&self, list: &TagList, mode: TagMergeMode);
    fn reset_tags(&self);
    fn set_tag_merge_mode(&self, mode: TagMergeMode);
}

Trait containing all TagSetter methods.

Implementors

crate::TagSetter

Required methods

`fn tag_list(&self) -> Option<TagList>`[src]

Returns the current list of tags the setter uses. The list should not be modified or freed.

This function is not thread-safe.

Returns

a current snapshot of the taglist used in the setter or None if none is used.

`fn tag_merge_mode(&self) -> TagMergeMode`[src]

Queries the mode by which tags inside the setter are overwritten by tags from events

Returns

the merge mode used inside the element.

`fn merge_tags(&self, list: &TagList, mode: TagMergeMode)`[src]

Merges the given list into the setter’s list using the given mode.

`mode`

the mode to merge with

`fn reset_tags(&self)`[src]

Reset the internal taglist. Elements should call this from within the state-change handler.

`fn set_tag_merge_mode(&self, mode: TagMergeMode)`[src]

Sets the given merge mode that is used for adding tags from events to tags specified by this interface. The default is crate::TagMergeMode::Keep, which keeps the tags set with this interface and discards tags from events.