The driver helpfully resets the capture queue format and selection
rectangle whenever output format is changed. This only works while
the capture queue is not busy.
Signed-off-by: Philipp Zabel <p.zabel@xxxxxxxxxxxxxx>
---
drivers/media/platform/coda/coda-common.c | 28 +++++++++++++++-------------
1 file changed, 15 insertions(+), 13 deletions(-)
diff --git a/drivers/media/platform/coda/coda-common.c b/drivers/media/platform/coda/coda-common.c
index 04e35d70ce2e..d3e22c14fad4 100644
--- a/drivers/media/platform/coda/coda-common.c
+++ b/drivers/media/platform/coda/coda-common.c
@@ -786,9 +786,8 @@ static int coda_s_fmt_vid_out(struct file *file, void *priv,
struct v4l2_format *f)
{
struct coda_ctx *ctx = fh_to_ctx(priv);
- struct coda_q_data *q_data_src;
struct v4l2_format f_cap;
- struct v4l2_rect r;
+ struct vb2_queue *dst_vq;
int ret;
ret = coda_try_fmt_vid_out(file, priv, f);
@@ -804,23 +803,26 @@ static int coda_s_fmt_vid_out(struct file *file, void *priv,
ctx->ycbcr_enc = f->fmt.pix.ycbcr_enc;
ctx->quantization = f->fmt.pix.quantization;
+ dst_vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
+ if (!dst_vq)
+ return -EINVAL;
+
+ /*
+ * Setting the capture queue format is not possible while the capture
+ * queue is still busy. This is not an error, but the user will have to
+ * make sure themselves that the capture format is set correctly before
+ * starting the output queue again.
+ */
+ if (vb2_is_busy(dst_vq))
+ return 0;
+
memset(&f_cap, 0, sizeof(f_cap));
f_cap.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
coda_g_fmt(file, priv, &f_cap);
f_cap.fmt.pix.width = f->fmt.pix.width;
f_cap.fmt.pix.height = f->fmt.pix.height;
- ret = coda_try_fmt_vid_cap(file, priv, &f_cap);
- if (ret)
- return ret;
-
- q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
- r.left = 0;
- r.top = 0;
- r.width = q_data_src->width;
- r.height = q_data_src->height;
-
- return coda_s_fmt(ctx, &f_cap, &r);
+ return coda_s_fmt_vid_cap(file, priv, &f_cap);
}
static int coda_reqbufs(struct file *file, void *priv,
--
2.16.1
