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IDvdInfo2::GetCurrentAudio

  • 아티클
 
Microsoft DirectShow 9.0

IDvdInfo2::GetCurrentAudio

The GetCurrentAudio method retrieves the number of available audio streams and the number of the currently selected audio stream.

Syntax

  HRESULT GetCurrentAudio(
  ULONG *pulStreamsAvailable,
  ULONG *pulCurrentStream
);

Parameters

pulStreamsAvailable

[out] Pointer to a variable of type ULONG that receives the number of available audio streams.

pulCurrentStream

[out] Pointer to a variable of type ULONG that receives the currently selected audio stream number in the current title.

Return Values

Returns one of the following HRESULT values.

Return code Description
S_OK Success.
E_POINTER Input arguments are invalid.
VFW_E_DVD_INVALIDDOMAIN The DVD Navigator is not initialized or not in a valid domain.

Remarks

To get the available audio languages on the disc, call GetCurrentAudio and then call GetAudioLanguage for each stream, starting from zero through (pulStreamsAvailable - 1) to get the language content.

Requirements

Header: Declared in Strmif.h; include Dshow.h.

Library: Use Strmiids.lib.

See Also