[PATCH v1 05/18] media: controls: Add control for HEVC codec

Benjamin Gaignard
2021-02-17T08:05:49Z

Add HEVC decode params and scaling matrix controls.

Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com>
Signed-off-by: Adrian Ratiu <adrian.ratiu@collabora.com>
---
drivers/media/v4l2-core/v4l2-ctrls.c | 36 ++++++++++++++++++++++------
1 file changed, 29 insertions(+), 7 deletions(-)

diff --git a/drivers/media/v4l2-core/v4l2-ctrls.c b/drivers/media/v4l2-core/v4l2-ctrls.c
index 016cf6204cbb..5e45333fd862 100644
--- a/drivers/media/v4l2-core/v4l2-ctrls.c
+++ b/drivers/media/v4l2-core/v4l2-ctrls.c
@@ -1028,6 +1028,8 @@ const char *v4l2_ctrl_get_name(u32 id)
case V4L2_CID_MPEG_VIDEO_HEVC_SPS: return "HEVC Sequence Parameter Set";
case V4L2_CID_MPEG_VIDEO_HEVC_PPS: return "HEVC Picture Parameter Set";
case V4L2_CID_MPEG_VIDEO_HEVC_SLICE_PARAMS: return "HEVC Slice Parameters";
+ case V4L2_CID_MPEG_VIDEO_HEVC_DECODE_PARAMS: return "HEVC Decode Parameters";
+ case V4L2_CID_MPEG_VIDEO_HEVC_SCALING_MATRIX: return "HEVC Scaling Matrix";
case V4L2_CID_MPEG_VIDEO_HEVC_DECODE_MODE: return "HEVC Decode Mode";
case V4L2_CID_MPEG_VIDEO_HEVC_START_CODE: return "HEVC Start Code";

@@ -1482,6 +1484,12 @@ void v4l2_ctrl_fill(u32 id, const char **name, enum v4l2_ctrl_type *type,
case V4L2_CID_MPEG_VIDEO_HEVC_SLICE_PARAMS:
*type = V4L2_CTRL_TYPE_HEVC_SLICE_PARAMS;
break;
+ case V4L2_CID_MPEG_VIDEO_HEVC_DECODE_PARAMS:
+ *type = V4L2_CTRL_TYPE_HEVC_DECODE_PARAMS;
+ break;
+ case V4L2_CID_MPEG_VIDEO_HEVC_SCALING_MATRIX:
+ *type = V4L2_CTRL_TYPE_HEVC_SCALING_MATRIX;
+ break;
case V4L2_CID_UNIT_CELL_SIZE:
*type = V4L2_CTRL_TYPE_AREA;
*flags |= V4L2_CTRL_FLAG_READ_ONLY;
@@ -1833,6 +1841,7 @@ static int std_validate_compound(const struct v4l2_ctrl *ctrl, u32 idx,
struct v4l2_ctrl_hevc_sps *p_hevc_sps;
struct v4l2_ctrl_hevc_pps *p_hevc_pps;
struct v4l2_ctrl_hevc_slice_params *p_hevc_slice_params;
+ struct v4l2_ctrl_hevc_decode_params *p_hevc_decode_params;
struct v4l2_area *area;
void *p = ptr.p + idx * ctrl->elem_size;
unsigned int i;
@@ -2108,26 +2117,33 @@ static int std_validate_compound(const struct v4l2_ctrl *ctrl, u32 idx,
zero_padding(*p_hevc_pps);
break;

- case V4L2_CTRL_TYPE_HEVC_SLICE_PARAMS:
- p_hevc_slice_params = p;
+ case V4L2_CTRL_TYPE_HEVC_DECODE_PARAMS:
+ p_hevc_decode_params = p;

- if (p_hevc_slice_params->num_active_dpb_entries >
+ if (p_hevc_decode_params->num_active_dpb_entries >
V4L2_HEVC_DPB_ENTRIES_NUM_MAX)
return -EINVAL;

- zero_padding(p_hevc_slice_params->pred_weight_table);
-
- for (i = 0; i < p_hevc_slice_params->num_active_dpb_entries;
+ for (i = 0; i < p_hevc_decode_params->num_active_dpb_entries;
i++) {
struct v4l2_hevc_dpb_entry *dpb_entry =
- &p_hevc_slice_params->dpb[i];
+ &p_hevc_decode_params->dpb[i];

zero_padding(*dpb_entry);
}

+ break;
+
+ case V4L2_CTRL_TYPE_HEVC_SLICE_PARAMS:
+ p_hevc_slice_params = p;
+
+ zero_padding(p_hevc_slice_params->pred_weight_table);
zero_padding(*p_hevc_slice_params);
break;

+ case V4L2_CTRL_TYPE_HEVC_SCALING_MATRIX:
+ break;
+
case V4L2_CTRL_TYPE_AREA:
area = p;
if (!area->width || !area->height)
@@ -2821,6 +2837,12 @@ static struct v4l2_ctrl *v4l2_ctrl_new(struct v4l2_ctrl_handler *hdl,
case V4L2_CTRL_TYPE_HEVC_SLICE_PARAMS:
elem_size = sizeof(struct v4l2_ctrl_hevc_slice_params);
break;
+ case V4L2_CTRL_TYPE_HEVC_DECODE_PARAMS:
+ elem_size = sizeof(struct v4l2_ctrl_hevc_decode_params);
+ break;
+ case V4L2_CTRL_TYPE_HEVC_SCALING_MATRIX:
+ elem_size = sizeof(struct v4l2_ctrl_hevc_scaling_matrix);
+ break;
case V4L2_CTRL_TYPE_AREA:
elem_size = sizeof(struct v4l2_area);
break;
--
2.25.1