On Thursday 29 January 2009 08:44:20 DongSoo Kim wrote:
> Hello.
>
> > +#define VIDIOC_S_COLOR_SPACE_CONV _IOW('V', 83, struct
> > v4l2_color_space_conversion) +#define VIDIOC_G_COLOR_SPACE_CONV
> > _IOR('V', 84, struct v4l2_color_space_conversion)
>
> Do you mind if I ask a question about those ioctls?
> Because as far as I understand, we can use VIDIOC_S_FMT ioctl to convert
> colorspaces. Setting through colorspace member in v4l2_pix_format, we
> could change output colorspace.
Colorspace is read-only, you cannot set it. It just gives you the colorspace
that the hardware uses by default.
If you want to fully control the colorspace, then you need these ioctls.
Regards,
Hans
> If there is some different use, can you tell me what it is?
>
> Regards,
> Nate
--
Hans Verkuil - video4linux developer - sponsored by TANDBERG
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