Esempi in C++ (Cpp) per DEVICE_USE_CODEC23

Esempio n. 1

File: pwc-v4l.c Progetto: mikuhatsune001/linux2.6.32

/* ioctl(VIDIOC_TRY_FMT) */
static int pwc_vidioc_try_fmt(struct pwc_device *pdev, struct v4l2_format *f)
{
	if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) {
		PWC_DEBUG_IOCTL("Bad video type must be V4L2_BUF_TYPE_VIDEO_CAPTURE\n");
		return -EINVAL;
	}

	switch (f->fmt.pix.pixelformat) {
		case V4L2_PIX_FMT_YUV420:
			break;
		case V4L2_PIX_FMT_PWC1:
			if (DEVICE_USE_CODEC23(pdev->type)) {
				PWC_DEBUG_IOCTL("codec1 is only supported for old pwc webcam\n");
				return -EINVAL;
			}
			break;
		case V4L2_PIX_FMT_PWC2:
			if (DEVICE_USE_CODEC1(pdev->type)) {
				PWC_DEBUG_IOCTL("codec23 is only supported for new pwc webcam\n");
				return -EINVAL;
			}
			break;
		default:
			PWC_DEBUG_IOCTL("Unsupported pixel format\n");
			return -EINVAL;

	}

	if (f->fmt.pix.width > pdev->view_max.x)
		f->fmt.pix.width = pdev->view_max.x;
	else if (f->fmt.pix.width < pdev->view_min.x)
		f->fmt.pix.width = pdev->view_min.x;

	if (f->fmt.pix.height > pdev->view_max.y)
		f->fmt.pix.height = pdev->view_max.y;
	else if (f->fmt.pix.height < pdev->view_min.y)
		f->fmt.pix.height = pdev->view_min.y;

	return 0;
}

Esempio n. 2

File: pwc-v4l.c Progetto: ARMWorks/FA_2451_Linux_Kernel

/* ioctl(VIDIOC_TRY_FMT) */
static int pwc_vidioc_try_fmt(struct pwc_device *pdev, struct v4l2_format *f)
{
	int size;

	if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) {
		PWC_DEBUG_IOCTL("Bad video type must be V4L2_BUF_TYPE_VIDEO_CAPTURE\n");
		return -EINVAL;
	}

	switch (f->fmt.pix.pixelformat) {
		case V4L2_PIX_FMT_YUV420:
			break;
		case V4L2_PIX_FMT_PWC1:
			if (DEVICE_USE_CODEC23(pdev->type)) {
				PWC_DEBUG_IOCTL("codec1 is only supported for old pwc webcam\n");
				return -EINVAL;
			}
			break;
		case V4L2_PIX_FMT_PWC2:
			if (DEVICE_USE_CODEC1(pdev->type)) {
				PWC_DEBUG_IOCTL("codec23 is only supported for new pwc webcam\n");
				return -EINVAL;
			}
			break;
		default:
			PWC_DEBUG_IOCTL("Unsupported pixel format\n");
			return -EINVAL;

	}

	size = pwc_get_size(pdev, f->fmt.pix.width, f->fmt.pix.height);
	pwc_vidioc_fill_fmt(f,
			    pwc_image_sizes[size][0],
			    pwc_image_sizes[size][1],
			    f->fmt.pix.pixelformat);

	return 0;
}