This patch add g/s_selection for MT8173 V4L2 Encoder.
Only output queue support g/s_selection to configure crop.
The top/left of active rectangle should always be (0,0).
Signed-off-by: Tiffany Lin <tiffany.lin@xxxxxxxxxxxx>
---
v5:
- remove visible_height change to a separate patch
v4:
- do not return -ERANGE and just select a rectangle that works with the
hardware and is closest to the requested rectangle
- refine v3 note about remove visible_height modification in s_fmt_out
v3:
- add v4l2_s_selection to check constraint flags
- remove visible_height modification in s_fmt_out, it will make v4l2-compliance
test Cropping fail becuase visible_height larger than coded_height.
---
drivers/media/platform/mtk-vcodec/mtk_vcodec_enc.c | 67 ++++++++++++++++++++
1 file changed, 67 insertions(+)
diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc.c b/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc.c
index 3ed3f2d..0a895e0 100644
--- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc.c
+++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc.c
@@ -631,6 +631,70 @@ static int vidioc_try_fmt_vid_out_mplane(struct file *file, void *priv,
return vidioc_try_fmt(f, fmt);
}
+static int vidioc_venc_g_selection(struct file *file, void *priv,
+ struct v4l2_selection *s)
+{
+ struct mtk_vcodec_ctx *ctx = fh_to_ctx(priv);
+ struct mtk_q_data *q_data;
+
+ if (s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
+ return -EINVAL;
+
+ q_data = mtk_venc_get_q_data(ctx, s->type);
+ if (!q_data)
+ return -EINVAL;
+
+ switch (s->target) {
+ case V4L2_SEL_TGT_CROP_DEFAULT:
+ case V4L2_SEL_TGT_CROP_BOUNDS:
+ s->r.top = 0;
+ s->r.left = 0;
+ s->r.width = q_data->coded_width;
+ s->r.height = q_data->coded_height;
+ break;
+ case V4L2_SEL_TGT_CROP:
+ s->r.top = 0;
+ s->r.left = 0;
+ s->r.width = q_data->visible_width;
+ s->r.height = q_data->visible_height;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int vidioc_venc_s_selection(struct file *file, void *priv,
+ struct v4l2_selection *s)
+{
+ struct mtk_vcodec_ctx *ctx = fh_to_ctx(priv);
+ struct mtk_q_data *q_data;
+ int err;
+
+ if (s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
+ return -EINVAL;
+
+ q_data = mtk_venc_get_q_data(ctx, s->type);
+ if (!q_data)
+ return -EINVAL;
+
+ switch (s->target) {
+ case V4L2_SEL_TGT_CROP:
+ /* Only support crop from (0,0) */
+ s->r.top = 0;
+ s->r.left = 0;
+ s->r.width = min(s->r.width, q_data->coded_width);
+ s->r.height = min(s->r.height, q_data->coded_height);
+ q_data->visible_width = s->r.width;
+ q_data->visible_height = s->r.height;
+ break;
+ default:
+ return -EINVAL;
+ }
+ return 0;
+}
+
static int vidioc_venc_qbuf(struct file *file, void *priv,
struct v4l2_buffer *buf)
{
@@ -689,6 +753,9 @@ const struct v4l2_ioctl_ops mtk_venc_ioctl_ops = {
.vidioc_create_bufs = v4l2_m2m_ioctl_create_bufs,
.vidioc_prepare_buf = v4l2_m2m_ioctl_prepare_buf,
+
+ .vidioc_g_selection = vidioc_venc_g_selection,
+ .vidioc_s_selection = vidioc_venc_s_selection,
};
static int vb2ops_venc_queue_setup(struct vb2_queue *vq,
--
1.7.9.5
--
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