void Xv411Grabber::setsize()
{
int w = capwin_->basewidth() / decimate_;
int h = capwin_->baseheight() / decimate_;
capwin_->setsize(w, h);
capwin_->converter(RGB_Converter_411::instance());
set_size_411(w, h);
allocref();
}
void XvCIFGrabber::setsize()
{
int w = 2 * 352 / decimate_;
int h = 2 * 288 / decimate_;
capwin_->setsize(w, h);
capwin_->converter(RGB_Converter_411::instance());
set_size_411(w, h);
allocref();
}
void DirectShowCIFGrabber::setsize() {
int w;
int h;
w = basewidth_ / decimate_;
h = baseheight_ / decimate_;
debug_msg("DirectShowCIFGrabber::setsize: %dx%d\n", w, h);
set_size_cif(w, h);
allocref();
}
int
xengrant(domid_t domid, ulong frame, int flags)
{
int ref;
grant_entry_t *gt;
if ((ref = allocref()) < 0)
panic("out of xengrant refs");
gt = &granttab[ref];
gt->frame = frame;
gt->domid = domid;
coherence();
gt->flags = flags;
return ref;
}
void V4lGrabber::format()
{
struct video_channel channel;
debug_msg("V4l: format\n");
width_ = CIF_WIDTH * 2 / decimate_;
height_ = CIF_HEIGHT * 2 / decimate_;
// FIXED by barz 2006/9/19: YUV422 is default
if (have_420P)
v4lformat_ = VIDEO_PALETTE_YUV420P;
else
v4lformat_ = VIDEO_PALETTE_YUV422;
switch (cformat_) {
case CF_CIF:
set_size_411(width_, height_);
debug_msg(" cif");
break;
case CF_411:
set_size_411(width_, height_);
debug_msg(" 411");
break;
case CF_422:
set_size_422(width_, height_);
if (have_422P) {
v4lformat_ = VIDEO_PALETTE_YUV422P;
debug_msg("Capturing directly in 422 Planar\n");
}
debug_msg(" 422");
break;
}
if (have_mmap) {
gb_even.frame = 0;
gb_even.format = v4lformat_;
gb_even.width = width_;
gb_even.height = height_;
gb_odd.frame = 1;
gb_odd.format = v4lformat_;
gb_odd.width = width_;
gb_odd.height = height_;
}
else {
memset(&win, 0, sizeof(win));
win.width = width_;
win.height = height_;
debug_msg("Setting palette to %d", pict.palette);
if (-1 == ioctl(fd_, VIDIOCSWIN, &win))
perror("ioctl VIDIOCSWIN");
if (-1 == ioctl(fd_, VIDIOCGWIN, &win))
perror("ioctl VIDIOCGWIN");
width_ = win.width;
height_ = win.height;
pict.palette = v4lformat_;
if (-1 == ioctl(fd_, VIDIOCSPICT, &pict)) {
perror("ioctl VIDIOCSPICT");
}
}
// barz: get pict to setup the white blance
if (-1 == ioctl(fd_, VIDIOCGPICT, &pict)) {
perror("ioctl VIDIOCGPICT");
}
debug_msg(" size=%dx%d\n", width_, height_);
bzero(&channel, sizeof(struct video_channel));
if (-1 == ioctl(fd_, VIDIOCGCHAN, &channel))
perror("ioctl VIDIOCGCHAN");
channel.channel = port_;
channel.norm = norm_;
if (-1 == ioctl(fd_, VIDIOCSCHAN, &channel))
perror("ioctl VIDIOCSCHAN");
debug_msg(" port=%d\n", port_);
debug_msg(" norm=%d\n", norm_);
allocref();
}
