IMFASFIndexer::GenerateIndexEntries method (wmcontainer.h)

Accepts an ASF packet for the file and creates index entries for them.

Syntax

HRESULT GenerateIndexEntries(
  [in] IMFSample *pIASFPacketSample
);

Parameters

[in] pIASFPacketSample

Pointer to the IMFSample interface of a media sample that contains the ASF packet.

Return value

The method returns an HRESULT. Possible values include, but are not limited to, those in the following table.

Remarks

The ASF indexer creates indexes for a file internally. You can get the completed index for all data packets sent to the indexer by committing the index with IMFASFIndexer::CommitIndex and then calling IMFASFIndexer::GetCompletedIndex to write the index entries into a media buffer. To determine the size of the index so you can allocate a buffer large enough to hold the index, call IMFASFIndexer::GetIndexWriteSpace.

When this method creates index entries, they are immediately available for use by IMFASFIndexer::GetSeekPositionForValue.

The media sample specified in pIASFPacketSample must hold a buffer that contains a single ASF packet. Get the sample from the ASF multiplexer by calling the IMFASFMultiplexer::GetNextPacket method.

You cannot use this method while reading an index, only when writing an index.

Requirements

See also

ASF Index Object

IMFASFIndexer