#include <tagsetter.h>
Public Member Functions | |
virtual | ~TagSetter () |
GstTagSetter* | gobj () |
Provides access to the underlying C GObject. | |
const GstTagSetter* | gobj () const |
Provides access to the underlying C GObject. | |
void | merge_tags (const Gst::TagList& list, TagMergeMode mode=TAG_MERGE_PREPEND) |
Merges the given list into the setter's list using the given mode. | |
void | add_tag (const Glib::ustring& tag, const Glib::ValueBase& value, TagMergeMode mode=TAG_MERGE_PREPEND) |
Adds the given Glib::ValueBase on the setter using the given merge mode. | |
template<class DataType > | |
void | add_tag (const Glib::ustring& tag, const DataType& data, TagMergeMode mode=TAG_MERGE_PREPEND) |
Adds the given value on the setter using the given merge mode. | |
void | add_tag (const Glib::ustring& tag, const char* data, TagMergeMode mode=TAG_MERGE_PREPEND) |
Adds the given value on the setter using the given merge mode. | |
Gst::TagList | get_tag_list () |
Returns: a current snapshot of the taglist used in the setter. | |
void | set_tag_merge_mode (TagMergeMode mode) |
Sets the given merge mode that is used for adding tags from events to tags specified by this interface. | |
TagMergeMode | qet_tag_merge_mode () |
Queries the mode by which tags inside the setter are overwritten by tags from events. | |
Static Public Member Functions | |
static void | add_interface (GType gtype_implementer) |
Related Functions | |
(Note that these are not member functions.) | |
Glib::RefPtr<Gst::TagSetter> | wrap (GstTagSetter* object, bool take_copy=false) |
A Glib::wrap() method for this object. |
Elements that support changing a stream's metadata will implement this interface. Examples of such elements are 'vorbisenc', 'theoraenc' and 'id3v2mux'.
If you just want to retrieve metadata in your application then all you need to do is watch for tag messages on your pipeline's bus. This interface is only for setting metadata, not for extracting it. To set tags from the application, find tagsetter elements and set tags using e.g. merge_tags() or add_tags(). The application should do that before the element goes to Gst::STATE_PAUSED.
virtual Gst::TagSetter::~TagSetter | ( | ) | [virtual] |
static void Gst::TagSetter::add_interface | ( | GType | gtype_implementer | ) | [static] |
void Gst::TagSetter::add_tag | ( | const Glib::ustring & | tag, | |
const char * | data, | |||
TagMergeMode | mode = TAG_MERGE_PREPEND | |||
) |
Adds the given value on the setter using the given merge mode.
tag | The tag to set. | |
data | The value to set the tag to. | |
mode | The mode to use. |
void Gst::TagSetter::add_tag | ( | const Glib::ustring & | tag, | |
const DataType & | data, | |||
TagMergeMode | mode = TAG_MERGE_PREPEND | |||
) | [inline] |
Adds the given value on the setter using the given merge mode.
tag | The tag to set. | |
data | The value to set the tag to (this may be any supported C++ type). | |
mode | The mode to use. |
void Gst::TagSetter::add_tag | ( | const Glib::ustring & | tag, | |
const Glib::ValueBase & | value, | |||
TagMergeMode | mode = TAG_MERGE_PREPEND | |||
) |
Adds the given Glib::ValueBase on the setter using the given merge mode.
tag | The tag to set. | |
value | The value to set the tag to. | |
mode | The mode to use. |
Gst::TagList Gst::TagSetter::get_tag_list | ( | ) |
Returns: a current snapshot of the taglist used in the setter.
0
if none is used. const GstTagSetter* Gst::TagSetter::gobj | ( | ) | const [inline] |
Provides access to the underlying C GObject.
GstTagSetter* Gst::TagSetter::gobj | ( | ) | [inline] |
Provides access to the underlying C GObject.
void Gst::TagSetter::merge_tags | ( | const Gst::TagList& | list, | |
TagMergeMode | mode = TAG_MERGE_PREPEND | |||
) |
Merges the given list into the setter's list using the given mode.
list | A tag list to merge from. | |
mode | The mode to merge with. |
TagMergeMode Gst::TagSetter::qet_tag_merge_mode | ( | ) |
Queries the mode by which tags inside the setter are overwritten by tags from events.
void Gst::TagSetter::set_tag_merge_mode | ( | TagMergeMode | mode | ) |
Sets the given merge mode that is used for adding tags from events to tags specified by this interface.
The default is Gst::TAG_MERGE_KEEP, which keeps the tags set with this interface and discards tags from events.
mode | The mode with which tags are added. |
Glib::RefPtr<Gst::TagSetter> wrap | ( | GstTagSetter * | object, | |
bool | take_copy = false | |||
) | [related] |
A Glib::wrap() method for this object.
object | The C instance. | |
take_copy | False if the result should take ownership of the C instance. True if it should take a new copy or ref. |