Exemple #1
0
static int jpeg_enc_vidioc_s_fmt_out(struct file *file, void *priv,
			struct v4l2_format *f)
{
	struct jpeg_ctx *ctx = priv;
	struct vb2_queue *vq;
	struct v4l2_pix_format_mplane *pix;
	struct jpeg_fmt *fmt;
	struct jpeg_frame *frame;
	int ret;
	int i;

	ret = jpeg_enc_vidioc_try_fmt(file, priv, f);
	if (ret)
		return ret;

	vq = v4l2_m2m_get_vq(ctx->m2m_ctx, f->type);
	if (!vq)
		return -EINVAL;

	if (vb2_is_busy(vq)) {
		v4l2_err(&ctx->jpeg_dev->v4l2_dev, "queue (%d) busy\n", f->type);
		return -EBUSY;
	}

	/* TODO: width & height has to be multiple of two */
	pix = &f->fmt.pix_mp;
	fmt = find_format(f);

	frame = ctx_get_frame(ctx, f->type);
	if (IS_ERR(frame))
		return PTR_ERR(frame);

	frame->jpeg_fmt = fmt;
	if (!frame->jpeg_fmt) {
		v4l2_err(&ctx->jpeg_dev->v4l2_dev,
				"not supported format values\n");
		return -EINVAL;
	}

	for (i = 0; i < fmt->memplanes; i++) {
		ctx->payload[i] =
			pix->plane_fmt[i].bytesperline * pix->height;
		ctx->param.enc_param.in_depth[i] = fmt->depth[i];
	}

	frame->width = pix->width;
	frame->height = pix->height;
	frame->pixelformat = pix->pixelformat;

	ctx->param.enc_param.in_width = pix->width;
	ctx->param.enc_param.in_height = pix->height;
	ctx->param.enc_param.in_plane = fmt->memplanes;
	ctx->param.enc_param.in_fmt = fmt->color;

	return 0;
}
Exemple #2
0
static int jpeg_enc_vidioc_s_fmt_cap(struct file *file, void *priv,
				struct v4l2_format *f)
{
	struct jpeg_ctx *ctx = priv;
	struct vb2_queue *vq;
	struct v4l2_pix_format_mplane *pix;
	struct jpeg_fmt *fmt;
	int ret;
	int i;

	ret = jpeg_enc_vidioc_try_fmt(file, priv, f);
	if (ret)
		return ret;

	vq = v4l2_m2m_get_vq(ctx->m2m_ctx, f->type);
	if (!vq)
		return -EINVAL;

	if (vb2_is_busy(vq)) {
		v4l2_err(&ctx->dev->v4l2_dev, "queue (%d) busy\n", f->type);
		return -EBUSY;
	}

	pix = &f->fmt.pix_mp;
	fmt = find_format(f);
	if (!fmt)
		return -EINVAL;

	for (i = 0; i < fmt->memplanes; i++)
		ctx->payload[i] =
			pix->plane_fmt[i].bytesperline * pix->height;

	ctx->param.enc_param.out_width = pix->height;
	ctx->param.enc_param.out_height = pix->width;
	ctx->param.enc_param.out_plane = fmt->memplanes;
	ctx->param.enc_param.out_depth = fmt->depth[0];
	ctx->param.enc_param.out_fmt = fmt->color;

	return 0;
}