From: Hans Verkuil <hans.verk...@cisco.com>
Signed-off-by: Hans Verkuil <hans.verk...@cisco.com>
---
drivers/media/pci/cx25821/cx25821-video.c | 46 +++++++++++++++++++++++++++++
1 file changed, 46 insertions(+)
diff --git a/drivers/media/pci/cx25821/cx25821-video.c
b/drivers/media/pci/cx25821/cx25821-video.c
index dca3391..70e33b1 100644
--- a/drivers/media/pci/cx25821/cx25821-video.c
+++ b/drivers/media/pci/cx25821/cx25821-video.c
@@ -851,6 +851,48 @@ static int cx25821_vidioc_s_output(struct file *file, void
*priv, unsigned int o
return o ? -EINVAL : 0;
}
+static int cx25821_vidioc_try_fmt_vid_out(struct file *file, void *priv,
+ struct v4l2_format *f)
+{
+ struct cx25821_channel *chan = video_drvdata(file);
+ struct cx25821_dev *dev = chan->dev;
+ const struct cx25821_fmt *fmt;
+
+ fmt = cx25821_format_by_fourcc(f->fmt.pix.pixelformat);
+ if (NULL == fmt)
+ return -EINVAL;
+ f->fmt.pix.width = 720;
+ f->fmt.pix.height = (dev->tvnorm & V4L2_STD_625_50) ? 576 : 480;
+ f->fmt.pix.field = V4L2_FIELD_INTERLACED;
+ f->fmt.pix.bytesperline = (f->fmt.pix.width * fmt->depth) >> 3;
+ f->fmt.pix.sizeimage = f->fmt.pix.height * f->fmt.pix.bytesperline;
+ f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
+ f->fmt.pix.priv = 0;
+ return 0;
+}
+
+static int vidioc_s_fmt_vid_out(struct file *file, void *priv,
+ struct v4l2_format *f)
+{
+ struct cx25821_channel *chan = video_drvdata(file);
+ int err;
+
+ err = cx25821_vidioc_try_fmt_vid_out(file, priv, f);
+
+ if (0 != err)
+ return err;
+
+ chan->fmt = cx25821_format_by_fourcc(f->fmt.pix.pixelformat);
+ chan->vidq.field = f->fmt.pix.field;
+ chan->width = f->fmt.pix.width;
+ chan->height = f->fmt.pix.height;
+ if (f->fmt.pix.pixelformat == V4L2_PIX_FMT_Y41P)
+ chan->pixel_formats = PIXEL_FRMT_411;
+ else
+ chan->pixel_formats = PIXEL_FRMT_422;
+ return 0;
+}
+
static const struct v4l2_ctrl_ops cx25821_ctrl_ops = {
.s_ctrl = cx25821_s_ctrl,
};
@@ -905,6 +947,10 @@ static const struct v4l2_file_operations video_out_fops = {
static const struct v4l2_ioctl_ops video_out_ioctl_ops = {
.vidioc_querycap = cx25821_vidioc_querycap,
+ .vidioc_enum_fmt_vid_out = cx25821_vidioc_enum_fmt_vid_cap,
+ .vidioc_g_fmt_vid_out = cx25821_vidioc_g_fmt_vid_cap,
+ .vidioc_try_fmt_vid_out = cx25821_vidioc_try_fmt_vid_out,
+ .vidioc_s_fmt_vid_out = vidioc_s_fmt_vid_out,
.vidioc_g_std = cx25821_vidioc_g_std,
.vidioc_s_std = cx25821_vidioc_s_std,
.vidioc_enum_output = cx25821_vidioc_enum_output,
--
1.7.10.4
--
To unsubscribe from this list: send the line "unsubscribe linux-media" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
