Function

CMFormatDescriptionGetMediaType

Returns the media type of a CMFormatDescription.

Declaration

CMMediaType CMFormatDescriptionGetMediaType(CMFormatDescriptionRef desc);

Parameters

desc

CMFormatDescription being interrogated

Return Value

The media type of the CMFormatDescription.

Discussion

For example, returns kCMMediaType_Audio for a description of an audio stream.

See Also

Common Functions

CMFormatDescriptionCreate

Creates a generic CMFormatDescription object. You should not call this method for the media types that has specific create functions such as audio, video, text, muxed, metaData and timeCode.

CMFormatDescriptionEqual

Compares two CMFormatDescription objects for equality.

CMFormatDescriptionEqualIgnoringExtensionKeys

Compares two CMFormatDescription objects for equality, ignoring differences in the specified lists of format description extension keys and sample description extension keys.

CMFormatDescriptionGetExtension

Returns the specified extension of a CMFormatDescription.

CMFormatDescriptionGetExtensions

Returns an immutable dictionary containing all the extensions of a CMFormatDescription.

CMFormatDescriptionGetMediaSubType

Returns the media subtype of a CMFormatDescription.

CMFormatDescriptionGetTypeID

Returns the CFTypeID of CMFormatDescription objects.