Function

CMMetadataFormatDescriptionCreateFromBigEndianMetadataDescriptionBlockBuffer

Creates a CMMetadataFormatDescription from a big-endian MetadataDescription data structure in a CMBlockBuffer.

Declaration

OSStatus CMMetadataFormatDescriptionCreateFromBigEndianMetadataDescriptionBlockBuffer(CFAllocatorRef allocator, CMBlockBufferRef metadataDescriptionBlockBuffer, CMMetadataDescriptionFlavor flavor, CMMetadataFormatDescriptionRef  _Nullable *formatDescriptionOut);

Parameters

allocator

Allocator to use for allocating the CMMetadataFormatDescription object. May be NULL.

metadataDescriptionBlockBuffer

CMBlockBuffer containing MetadataDescription data structure in big-endian byte ordering.

metadataDescriptionFlavor

Reserved for future use. Pass NULL for QuickTime Movie or ISO flavor.

metadataFormatDescriptionOut

Receives new CMMetadataFormatDescriptionRef.

See Also

Metadata-Specific Functions

CMMetadataFormatDescriptionCreateWithKeys

Creates a metadata format description object specified by the key.

CMMetadataFormatDescriptionGetKeyWithLocalID

Returns the key associated with the metadata for the given local id.

CMMetadataFormatDescriptionCopyAsBigEndianMetadataDescriptionBlockBuffer

Copies the contents of a CMMetadataFormatDescription to a CMBlockBuffer in big-endian byte ordering.

CMMetadataFormatDescriptionCreateFromBigEndianMetadataDescriptionData

Creates a CMMetadataFormatDescription from a big-endian MetadataDescription data structure.

CMMetadataFormatDescriptionCreateWithMetadataSpecifications

Creates a new CMMetadataFormatDescription.

CMSwapBigEndianMetadataDescriptionToHost

Converts a MetadataDescription data structure from big-endian to host-endian in place.

CMSwapHostEndianMetadataDescriptionToBig

Converts a MetadataDescription data structure from host-endian to big-endian in place.

CMMetadataFormatDescriptionGetIdentifiers

Gets an array of metadata identifiers from a metadata format description.