[PATCH] vim2m: copy the other colorspace-related fields as well

[Hans Verkuil]

The xfer_func, ycbcr_enc and quantization fields should also be copied from
output to capture format.

Since this driver serves as example code it is important that this is handled
correctly.

Signed-off-by: Hans Verkuil <hans.verk...@cisco.com>

diff --git a/drivers/media/platform/vim2m.c b/drivers/media/platform/vim2m.c
index 6b17015..cd0ff4a 100644
--- a/drivers/media/platform/vim2m.c
+++ b/drivers/media/platform/vim2m.c
@@ -171,6 +171,9 @@ struct vim2m_ctx {
        int                     mode;

        enum v4l2_colorspace    colorspace;
+       enum v4l2_ycbcr_encoding ycbcr_enc;
+       enum v4l2_xfer_func     xfer_func;
+       enum v4l2_quantization  quant;

        /* Source and destination queue data */
        struct vim2m_q_data   q_data[2];
@@ -493,6 +496,9 @@ static int vidioc_g_fmt(struct vim2m_ctx *ctx, struct 
v4l2_format *f)
        f->fmt.pix.bytesperline = (q_data->width * q_data->fmt->depth) >> 3;
        f->fmt.pix.sizeimage    = q_data->sizeimage;
        f->fmt.pix.colorspace   = ctx->colorspace;
+       f->fmt.pix.xfer_func    = ctx->xfer_func;
+       f->fmt.pix.ycbcr_enc    = ctx->ycbcr_enc;
+       f->fmt.pix.quantization = ctx->quant;

        return 0;
 }
@@ -549,6 +555,9 @@ static int vidioc_try_fmt_vid_cap(struct file *file, void 
*priv,
                return -EINVAL;
        }
        f->fmt.pix.colorspace = ctx->colorspace;
+       f->fmt.pix.xfer_func = ctx->xfer_func;
+       f->fmt.pix.ycbcr_enc = ctx->ycbcr_enc;
+       f->fmt.pix.quantization = ctx->quant;

        return vidioc_try_fmt(f, fmt);
 }
@@ -630,8 +639,12 @@ static int vidioc_s_fmt_vid_out(struct file *file, void 
*priv,
                return ret;

        ret = vidioc_s_fmt(file2ctx(file), f);
-       if (!ret)
+       if (!ret) {
                ctx->colorspace = f->fmt.pix.colorspace;
+               ctx->xfer_func = f->fmt.pix.xfer_func;
+               ctx->ycbcr_enc = f->fmt.pix.ycbcr_enc;
+               ctx->quant = f->fmt.pix.quantization;
+       }
        return ret;
 }

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