Re: [PATCH v9 3/6] media: verisilicon: Do not set ctx->bit_depth in hantro_try_ctrl()

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On Mon, Feb 20 2023 at 11:48:46 AM +0100, Benjamin Gaignard <benjamin.gaignard@xxxxxxxxxxxxx> wrote:
In hantro_try_ctrl() we should only check the values inside
control parameters and not set ctx->bit_depth. That must
be done in controls set function.
Create a set control function for hevc where ctx->bit_depth is
set at the right time.

Signed-off-by: Benjamin Gaignard <benjamin.gaignard@xxxxxxxxxxxxx>

Reviewed-by: Ezequiel Garcia <ezequiel@xxxxxxxxxxxxxxxxxxxx>

---
.../media/platform/verisilicon/hantro_drv.c | 32 ++++++++++++++-----
 1 file changed, 24 insertions(+), 8 deletions(-)

diff --git a/drivers/media/platform/verisilicon/hantro_drv.c b/drivers/media/platform/verisilicon/hantro_drv.c
index b0aeedae7b65..c237253803f4 100644
--- a/drivers/media/platform/verisilicon/hantro_drv.c
+++ b/drivers/media/platform/verisilicon/hantro_drv.c
@@ -251,11 +251,6 @@ queue_init(void *priv, struct vb2_queue *src_vq, struct vb2_queue *dst_vq)

 static int hantro_try_ctrl(struct v4l2_ctrl *ctrl)
 {
-	struct hantro_ctx *ctx;
-
-	ctx = container_of(ctrl->handler,
-			   struct hantro_ctx, ctrl_handler);
-
 	if (ctrl->id == V4L2_CID_STATELESS_H264_SPS) {
 		const struct v4l2_ctrl_h264_sps *sps = ctrl->p_new.p_h264_sps;

@@ -274,8 +269,6 @@ static int hantro_try_ctrl(struct v4l2_ctrl *ctrl)
if (sps->bit_depth_luma_minus8 != 0 && sps->bit_depth_luma_minus8 != 2)
 			/* Only 8-bit and 10-bit are supported */
 			return -EINVAL;
-
-		ctx->bit_depth = sps->bit_depth_luma_minus8 + 8;
 	} else if (ctrl->id == V4L2_CID_STATELESS_VP9_FRAME) {
const struct v4l2_ctrl_vp9_frame *dec_params = ctrl->p_new.p_vp9_frame;

@@ -324,6 +317,24 @@ static int hantro_vp9_s_ctrl(struct v4l2_ctrl *ctrl)
 	return 0;
 }

+static int hantro_hevc_s_ctrl(struct v4l2_ctrl *ctrl)
+{
+	struct hantro_ctx *ctx;
+
+	ctx = container_of(ctrl->handler,
+			   struct hantro_ctx, ctrl_handler);
+
+	switch (ctrl->id) {
+	case V4L2_CID_STATELESS_HEVC_SPS:
+		ctx->bit_depth = ctrl->p_new.p_hevc_sps->bit_depth_luma_minus8 + 8;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
 static const struct v4l2_ctrl_ops hantro_ctrl_ops = {
 	.try_ctrl = hantro_try_ctrl,
 };
@@ -336,6 +347,11 @@ static const struct v4l2_ctrl_ops hantro_vp9_ctrl_ops = {
 	.s_ctrl = hantro_vp9_s_ctrl,
 };

+static const struct v4l2_ctrl_ops hantro_hevc_ctrl_ops = {
+	.try_ctrl = hantro_try_ctrl,
+	.s_ctrl = hantro_hevc_s_ctrl,
+};
+
 #define HANTRO_JPEG_ACTIVE_MARKERS	(V4L2_JPEG_ACTIVE_MARKER_APP0 | \
 					 V4L2_JPEG_ACTIVE_MARKER_COM | \
 					 V4L2_JPEG_ACTIVE_MARKER_DQT | \
@@ -470,7 +486,7 @@ static const struct hantro_ctrl controls[] = {
 		.codec = HANTRO_HEVC_DECODER,
 		.cfg = {
 			.id = V4L2_CID_STATELESS_HEVC_SPS,
-			.ops = &hantro_ctrl_ops,
+			.ops = &hantro_hevc_ctrl_ops,
 		},
 	}, {
 		.codec = HANTRO_HEVC_DECODER,
--
2.34.1






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