IMFMetadata interface

Manages metadata for an object. Metadata is information that describes a media file, stream, or other content. Metadata consists of individual properties, where each property contains a descriptive name and a value. A property may be associated with a particular language.

To get this interface from a media source, use the IMFMetadataProvider interface.

Members

The IMFMetadata interface inherits from the IUnknown interface. IMFMetadata also has these types of members:

• Methods

Methods

The IMFMetadata interface has these methods.

Examples

The following example shows how to get an IMFMetadata pointer from a media source.

HRESULT GetMetadata(
    IMFMediaSource *pSource, IMFMetadata **ppMetadata, DWORD dwStream = 0)
{
    IMFPresentationDescriptor *pPD = NULL;
    IMFMetadataProvider *pProvider = NULL;

    HRESULT hr = pSource->CreatePresentationDescriptor(&pPD);
    if (FAILED(hr))
    {
        goto done;
    }

    hr = MFGetService(
        pSource, MF_METADATA_PROVIDER_SERVICE, IID_PPV_ARGS(&pProvider));

    if (FAILED(hr))
    {
        goto done;
    }

    hr = pProvider->GetMFMetadata(pPD, dwStream, 0, ppMetadata);

done:
    SafeRelease(&pPD);
    SafeRelease(&pProvider);
    return hr;
}

Requirements

See also

Media Foundation Interfaces

Media Metadata

IMFMetadataProvider