gst.caps_features

Module for [CapsFeatures] class

Types 1

#GstCapsFeatures can optionally be set on a #GstCaps to add requirements for additional features for a specific #GstStructure. Caps structures with the same name but with a non-equal set of caps features are not compatible. If a pad supports multiple sets of features it has to add multiple equal structures with different feature sets to the caps.

Empty #GstCapsFeatures are equivalent with the #GstCapsFeatures that only contain #GST_CAPS_FEATURE_MEMORY_SYSTEM_MEMORY. ANY #GstCapsFeatures as created by [gst.caps_features.CapsFeatures.newAny] are equal to any other #GstCapsFeatures and can be used to specify that any #GstCapsFeatures would be supported, e.g. for elements that don't touch buffer memory. #GstCaps with ANY #GstCapsFeatures are considered non-fixed and during negotiation some #GstCapsFeatures have to be selected.

Examples for caps features would be the requirement of a specific #GstMemory types or the requirement of having a specific #GstMeta on the buffer. Features are given as a string of the format memory:GstMemoryTypeName or meta:GstMetaAPIName.

Methods

void * _cPtr(Flag!"Dup" dup = No.Dup)

GType _getGType()

GType _gType() @property

CapsFeatures self()Returns `this`, for use in `with` statements.

gst.caps_features.CapsFeatures newAny()Creates a new, ANY #GstCapsFeatures. This will be equal to any other #GstCapsFeatures but caps with these are unfixed. Returns: a new, ANY #GstCapsFeatures

gst.caps_features.CapsFeatures newEmpty()Creates a new, empty #GstCapsFeatures. Returns: a new, empty #GstCapsFeatures

gst.caps_features.CapsFeatures newSingle(string feature)Creates a new #GstCapsFeatures with a single feature.

void add(string feature)Adds feature to features.

void addId(glib.types.Quark feature)Adds feature to features.

bool contains(string feature)Checks if features contains feature.

bool containsId(glib.types.Quark feature)Checks if features contains feature.

gst.caps_features.CapsFeatures copy()Duplicates a #GstCapsFeatures and all its values. Returns: a new #GstCapsFeatures.

string getNth(uint i)Returns the `i`-th feature of features.

glib.types.Quark getNthId(uint i)Returns the `i`-th feature of features.

uint getSize()Returns the number of features in features. Returns: The number of features in features.

bool isAny()Checks if features is `GSTCAPSFEATURESANY`. Returns: true if features is `GSTCAPSFEATURESANY`.

bool isEqual(gst.caps_features.CapsFeatures features2)Checks if features1 and features2 are equal.

void remove(string feature)Removes feature from features.

void removeId(glib.types.Quark feature)Removes feature from features.

string toString_()Converts features to a human-readable string representation.

gst.caps_features.CapsFeatures fromString(string features)Creates a #GstCapsFeatures from a string representation.

Constructors

this(void * ptr, Flag!"Take" take)