IDVRGB219::SetRGB219
| Microsoft DirectShow 9.0 |
IDVRGB219::SetRGB219
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 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.
| Value | Description |
| TRUE | Enable RGB-219 mode. |
| FALSE | Disable RGB-219 mode. Use the default mode. |
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.
Requirements
Header: Declared in Strmif.h; include Dshow.h.
Library: Use Strmiids.lib.
See Also