C++ (Cpp) v4l2_video_std_frame_period Exemples

Exemple #1

/* Fill in the fields of a v4l2_standard structure according to the
   'id' and 'transmission' parameters.  Returns negative on error.  */
int v4l2_video_std_construct(struct v4l2_standard *vs,
			     int id, const char *name)
{
	vs->id = id;
	v4l2_video_std_frame_period(id, &vs->frameperiod);
	vs->framelines = (id & V4L2_STD_525_60) ? 525 : 625;
	strlcpy(vs->name, name, sizeof(vs->name));
	return 0;
}

Exemple #2

Fichier : saa7146_video.c Projet : openube/android_kernel_sony_c2305

static int vidioc_g_parm(struct file *file, void *fh,
		struct v4l2_streamparm *parm)
{
	struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev;
	struct saa7146_vv *vv = dev->vv_data;

	parm->parm.capture.readbuffers = 1;
	v4l2_video_std_frame_period(vv->standard->id,
				    &parm->parm.capture.timeperframe);
	return 0;
}

Exemple #3

Fichier : saa7146_video.c Projet : AdrianHuang/linux-3.8.13

static int vidioc_g_parm(struct file *file, void *fh,
		struct v4l2_streamparm *parm)
{
	struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev;
	struct saa7146_vv *vv = dev->vv_data;

	if (parm->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
		return -EINVAL;
	parm->parm.capture.readbuffers = 1;
	v4l2_video_std_frame_period(vv->standard->id,
				    &parm->parm.capture.timeperframe);
	return 0;
}