IDVRGB219::SetRGB219

This topic applies to Windows XP Home Edition and Windows XP Professional only.

The SetRGB219 method controls the dynamic range for DV encoding and decoding.

The DV video format has a dynamic range of 16–235. By default, when the DV Video Decoder decodes to 24-bit or 32-bit RGB, it stretches the color range from to 0–255. Similarly, the DV Video Encoder compresses 24-bit RGB into the 16-235 range. In RGB-219 mode, the decoder does not stretch the color range, and the encoder does not compress the color range. Use the SetRGB219 method to toggle between the default mode and RGB-219 mode.

Syntax

HRESULT SetRGB219(
  BOOL bState
);

Parameters

bState

[in] Boolean value that specifies the filter's encoding or decoder behavior.

Return Values

Returns S_OK if successful. Otherwise, returns an HRESULT failure code.

Remarks

For the encoder, this method has no effect unless the input type is RGB-24. For the decoder, it has no effect unless the output type is RGB-24 or RGB-32.

See Also

• Error and Success Codes
• IDVRGB219 Interface