int src_v4l2_set_controls(src_t *src)
{
src_v4l2_t *s = (src_v4l2_t *) src->state;
struct v4l2_queryctrl queryctrl;
int c;
memset(&queryctrl, 0, sizeof(queryctrl));
if(src->list & SRC_LIST_CONTROLS)
{
HEAD("%-25s %-15s %s", "Available Controls", "Current Value", "Range");
MSG("%-25s %-15s %s", "------------------", "-------------", "-----");
/* Display normal controls. */
for(c = V4L2_CID_BASE; c < V4L2_CID_LASTP1; c++)
{
queryctrl.id = c;
if(ioctl(s->fd, VIDIOC_QUERYCTRL, &queryctrl)) continue;
src_v4l2_show_control(src, &queryctrl);
}
/* Display device-specific controls. */
for(c = V4L2_CID_PRIVATE_BASE; ; c++)
{
queryctrl.id = c;
if(ioctl(s->fd, VIDIOC_QUERYCTRL, &queryctrl)) break;
src_v4l2_show_control(src, &queryctrl);
}
}
/* Scan normal controls. */
for(c = V4L2_CID_BASE; c < V4L2_CID_LASTP1; c++)
{
queryctrl.id = c;
if(ioctl(s->fd, VIDIOC_QUERYCTRL, &queryctrl)) continue;
src_v4l2_set_control(src, &queryctrl);
}
/* Scan device-specific controls. */
for(c = V4L2_CID_PRIVATE_BASE; ; c++)
{
queryctrl.id = c;
if(ioctl(s->fd, VIDIOC_QUERYCTRL, &queryctrl)) break;
src_v4l2_set_control(src, &queryctrl);
}
return(0);
}
int src_v4l2_set_controls(src_t *src)
{
src_v4l2_t *s = (src_v4l2_t *) src->state;
struct v4l2_queryctrl queryctrl;
struct v4l2_control control;
int c, rc;
memset(&queryctrl, 0, sizeof(queryctrl));
#if 1
if(src->list & SRC_LIST_CONTROLS)
{
HEAD("%-25s %-15s %s", "Available Controls", "Current Value", "Range");
MSG("%-25s %-15s %s", "------------------", "-------------", "-----");
/* Display all controls */
queryctrl.id = V4L2_CTRL_FLAG_NEXT_CTRL;
while (0 == ioctl(s->fd, VIDIOC_QUERYCTRL, &queryctrl))
{
src_v4l2_show_control(src, &queryctrl);
queryctrl.id |= V4L2_CTRL_FLAG_NEXT_CTRL;
}
}
/* Set all controls */
queryctrl.id = V4L2_CTRL_FLAG_NEXT_CTRL;
while (0 == ioctl(s->fd, VIDIOC_QUERYCTRL, &queryctrl))
{
src_v4l2_set_control(src, &queryctrl);
queryctrl.id |= V4L2_CTRL_FLAG_NEXT_CTRL;
}
#endif
rc = 0;
if (src->exposure != 0xf0000000) {
memset(&control, 0, sizeof(control));
control.id = V4L2_CID_EXPOSURE;
rc = ioctl(s->fd, VIDIOC_G_CTRL, &control);
fprintf(stderr, "rc: %d - get value: %d\n", rc, control.value);
control.value = src->exposure;
rc = ioctl(s->fd, VIDIOC_S_CTRL, &control);
fprintf(stderr, "rc: %d - set src->exposure: %d\n", rc, src->exposure);
}
if (src->hflip != 0xf0000000) {
memset(&control, 0, sizeof(control));
control.id = V4L2_CID_HFLIP;
rc = ioctl(s->fd, VIDIOC_G_CTRL, &control);
fprintf(stderr, "rc: %d - get value: %d\n", rc, control.value);
control.value = src->hflip;
rc = ioctl(s->fd, VIDIOC_S_CTRL, &control);
fprintf(stderr, "rc: %d - set value: %d\n", rc, control.value);
}
if (src->vflip != 0xf0000000) {
memset(&control, 0, sizeof(control));
control.id = V4L2_CID_VFLIP;
rc = ioctl(s->fd, VIDIOC_G_CTRL, &control);
fprintf(stderr, "rc: %d - value: %d\n", rc, control.value);
control.value = src->vflip;
rc = ioctl(s->fd, VIDIOC_S_CTRL, &control);
fprintf(stderr, "rc: %d - set value: %d\n", rc, control.value);
}
return(rc);
}