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Determines if a specified time format is supported.
HRESULT IsFormatSupported( const GUID * pFormat );
Parameters
- pFormat
- [in] Time format to compare.
Return Values
Returns an HRESULTvalue that depends on the implementation of the interface. The default DirectShow implementation returns S_OK if the time format is supported; otherwise returns S_FALSE.
Remarks
Time formats are defined as follows:
TIME_FORMAT_NONE Seeking is not supported. TIME_FORMAT_FRAME Seeks to specific video frames. TIME_FORMAT_SAMPLE Seeks to samples in the stream. TIME_FORMAT_FIELD Seeks to interlaced video fields. TIME_FORMAT_BYTE Seeks to a byte in the stream. TIME_FORMAT_MEDIA_TIME Seeks to time stamps on the media samples. Third-party vendors are encouraged to add their own time formats to this list.