AVIStreamOpenFromFile

The AVIStreamOpenFromFile function opens a single stream from a file.

STDAPI AVIStreamOpenFromFile(

PAVISTREAM * ppavi,
LPCTSTR szFile,
DWORD fccType,
LONG lParam,
UINT mode,
CLSID * pclsidHandler
);

Parameters

ppavi

Address to contain the new stream handle.

szFile

Null-terminated string containing the name of the file to open.

fccType

Four-character code indicating the type of stream to be opened. Zero indicates that any stream can be opened. The following definitions apply to the data commonly found in AVI streams:

streamtypeAUDIO	Indicates an audio stream.
streamtypeMIDI	Indicates a MIDI stream.
streamtypeTEXT	Indicates a text stream.
streamtypeVIDEO	Indicates a video stream.

lParam

Stream of the type specified in fccType to access. This parameter is zero-based; use zero to specify the first occurrence.

mode

Access mode to use when opening the file. This function can open only existing streams, so the OF_CREATE mode flag cannot be used. For more information about the available flags for the mode parameter, see the OpenFile function.

pclsidHandler

Address of a class identifier of the handler you want to use. If the value is NULL, the system chooses one from the registry based on the file extension or the file RIFF type.

Return Values

Returns zero if successful or an error otherwise.

Remarks

This function calls the AVIFileOpen, AVIFileGetStream, and AVIFileRelease functions.

See Also

OpenFile, AVIFileOpen, AVIFileGetStream, AVIFileRelease

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