[MPlayer-dev-eng] SwScaler YV12 to BGR32 having zeroed alpha

[Rich Felker]

On Sun, May 29, 2005 at 09:45:32AM -0400, Jason Tackaberry wrote:
> I'm using SwScaler to scale and convert between YV12 and BGR32
> colorspaces.  I'm noticing that the alpha channel of the resulting BGR32
> image is completely zeroed, which means in order to do anything useful
> with it (when using it with code that pays attention to per-pixel alpha)
> I need to loop through the buffer and adjust every fourth byte, which
> is, I think, needless overhead.

there is no alpha channel. swscaler converts to bgr32, not some bgra
nonsense. certainly the input has no alpha, so what do you expect??

rich