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CSourceSeeking::ConvertTimeFormat

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Microsoft DirectShow 9.0

CSourceSeeking::ConvertTimeFormat

The ConvertTimeFormat method converts from one time format to another. This method implements the IMediaSeeking::ConvertTimeFormat method.

Syntax

  HRESULT ConvertTimeFormat(
    LONGLONG *pTarget,
    const GUID *pTargetFormat,
    LONGLONG Source,
    const GUID *pSourceFormat
);

Parameters

pTarget

Pointer to a variable that receives the converted time.

pTargetFormat

Pointer to the GUID of the target format. If NULL, the current format is used. See Time Format GUIDs.

Source

Time value to be converted.

pSourceFormat

Pointer to the time format GUID of the format to convert. If NULL, the current format is used.

Return Value

Returns one of the HRESULT values listed in the following table.

Value Description
S_OK Success
E_INVALIDARG Invalid argument
E_POINTER NULL pointer argument

Remarks

The only time format supported by the base class is TIME_FORMAT_MEDIA_TIME (100-nanosecond units). This method returns E_INVALIDARG, except in the trivial case where pTargetFormat and pSourceFormat both specify TIME_FORMAT_MEDIA_TIME.

Requirements

**  Header:** Declared in Ctlutil.h; include Streams.h.

**  Library:** Use Strmbase.lib (retail builds) or Strmbasd.lib (debug builds).

See Also