aboutsummaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
-rw-r--r--Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst19
-rw-r--r--drivers/media/v4l2-core/v4l2-ctrls.c8
-rw-r--r--drivers/staging/media/sunxi/cedrus/cedrus.c7
-rw-r--r--drivers/staging/media/sunxi/cedrus/cedrus.h1
-rw-r--r--drivers/staging/media/sunxi/cedrus/cedrus_dec.c2
-rw-r--r--drivers/staging/media/sunxi/cedrus/cedrus_h264.c12
-rw-r--r--include/media/h264-ctrls.h12
-rw-r--r--include/media/v4l2-ctrls.h2
8 files changed, 45 insertions, 18 deletions
diff --git a/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst b/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst
index 2cce412f5be1..9e4421a7c6a6 100644
--- a/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst
+++ b/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst
@@ -1879,18 +1879,23 @@ enum v4l2_mpeg_video_h264_hierarchical_coding_type -
- 0x00000008
-
-``Prediction Weight Table``
+``V4L2_CID_MPEG_VIDEO_H264_PRED_WEIGHTS (struct)``
+ Prediction weight table defined according to :ref:`h264`,
+ section 7.4.3.2 "Prediction Weight Table Semantics".
+ The prediction weight table must be passed by applications
+ under the conditions explained in section 7.3.3 "Slice header
+ syntax".
- The bitstream parameters are defined according to :ref:`h264`,
- section 7.4.3.2 "Prediction Weight Table Semantics". For further
- documentation, refer to the above specification, unless there is
- an explicit comment stating otherwise.
+ .. note::
+
+ This compound control is not yet part of the public kernel API and
+ it is expected to change.
-.. c:type:: v4l2_h264_pred_weight_table
+.. c:type:: v4l2_ctrl_h264_pred_weights
.. cssclass:: longtable
-.. flat-table:: struct v4l2_h264_pred_weight_table
+.. flat-table:: struct v4l2_ctrl_h264_pred_weights
:header-rows: 0
:stub-columns: 0
:widths: 1 1 2
diff --git a/drivers/media/v4l2-core/v4l2-ctrls.c b/drivers/media/v4l2-core/v4l2-ctrls.c
index 3f3fbcd60cc6..76c8dc8fb31c 100644
--- a/drivers/media/v4l2-core/v4l2-ctrls.c
+++ b/drivers/media/v4l2-core/v4l2-ctrls.c
@@ -897,6 +897,7 @@ const char *v4l2_ctrl_get_name(u32 id)
case V4L2_CID_MPEG_VIDEO_H264_DECODE_PARAMS: return "H264 Decode Parameters";
case V4L2_CID_MPEG_VIDEO_H264_DECODE_MODE: return "H264 Decode Mode";
case V4L2_CID_MPEG_VIDEO_H264_START_CODE: return "H264 Start Code";
+ case V4L2_CID_MPEG_VIDEO_H264_PRED_WEIGHTS: return "H264 Prediction Weight Table";
case V4L2_CID_MPEG_VIDEO_MPEG2_LEVEL: return "MPEG2 Level";
case V4L2_CID_MPEG_VIDEO_MPEG2_PROFILE: return "MPEG2 Profile";
case V4L2_CID_MPEG_VIDEO_MPEG4_I_FRAME_QP: return "MPEG4 I-Frame QP Value";
@@ -1412,6 +1413,9 @@ void v4l2_ctrl_fill(u32 id, const char **name, enum v4l2_ctrl_type *type,
case V4L2_CID_MPEG_VIDEO_H264_DECODE_PARAMS:
*type = V4L2_CTRL_TYPE_H264_DECODE_PARAMS;
break;
+ case V4L2_CID_MPEG_VIDEO_H264_PRED_WEIGHTS:
+ *type = V4L2_CTRL_TYPE_H264_PRED_WEIGHTS;
+ break;
case V4L2_CID_MPEG_VIDEO_VP8_FRAME_HEADER:
*type = V4L2_CTRL_TYPE_VP8_FRAME_HEADER;
break;
@@ -1790,6 +1794,7 @@ static int std_validate_compound(const struct v4l2_ctrl *ctrl, u32 idx,
case V4L2_CTRL_TYPE_H264_SPS:
case V4L2_CTRL_TYPE_H264_PPS:
case V4L2_CTRL_TYPE_H264_SCALING_MATRIX:
+ case V4L2_CTRL_TYPE_H264_PRED_WEIGHTS:
case V4L2_CTRL_TYPE_H264_SLICE_PARAMS:
case V4L2_CTRL_TYPE_H264_DECODE_PARAMS:
break;
@@ -2553,6 +2558,9 @@ static struct v4l2_ctrl *v4l2_ctrl_new(struct v4l2_ctrl_handler *hdl,
case V4L2_CTRL_TYPE_H264_DECODE_PARAMS:
elem_size = sizeof(struct v4l2_ctrl_h264_decode_params);
break;
+ case V4L2_CTRL_TYPE_H264_PRED_WEIGHTS:
+ elem_size = sizeof(struct v4l2_ctrl_h264_pred_weights);
+ break;
case V4L2_CTRL_TYPE_VP8_FRAME_HEADER:
elem_size = sizeof(struct v4l2_ctrl_vp8_frame_header);
break;
diff --git a/drivers/staging/media/sunxi/cedrus/cedrus.c b/drivers/staging/media/sunxi/cedrus/cedrus.c
index bc27f9430eeb..826324faad7e 100644
--- a/drivers/staging/media/sunxi/cedrus/cedrus.c
+++ b/drivers/staging/media/sunxi/cedrus/cedrus.c
@@ -80,6 +80,13 @@ static const struct cedrus_control cedrus_controls[] = {
},
{
.cfg = {
+ .id = V4L2_CID_MPEG_VIDEO_H264_PRED_WEIGHTS,
+ },
+ .codec = CEDRUS_CODEC_H264,
+ .required = false,
+ },
+ {
+ .cfg = {
.id = V4L2_CID_MPEG_VIDEO_H264_DECODE_MODE,
.max = V4L2_MPEG_VIDEO_H264_DECODE_MODE_SLICE_BASED,
.def = V4L2_MPEG_VIDEO_H264_DECODE_MODE_SLICE_BASED,
diff --git a/drivers/staging/media/sunxi/cedrus/cedrus.h b/drivers/staging/media/sunxi/cedrus/cedrus.h
index 96765555ab8a..93c843ae14bb 100644
--- a/drivers/staging/media/sunxi/cedrus/cedrus.h
+++ b/drivers/staging/media/sunxi/cedrus/cedrus.h
@@ -62,6 +62,7 @@ struct cedrus_h264_run {
const struct v4l2_ctrl_h264_scaling_matrix *scaling_matrix;
const struct v4l2_ctrl_h264_slice_params *slice_params;
const struct v4l2_ctrl_h264_sps *sps;
+ const struct v4l2_ctrl_h264_pred_weights *pred_weights;
};
struct cedrus_mpeg2_run {
diff --git a/drivers/staging/media/sunxi/cedrus/cedrus_dec.c b/drivers/staging/media/sunxi/cedrus/cedrus_dec.c
index 58c48e4fdfe9..6385026d1b6b 100644
--- a/drivers/staging/media/sunxi/cedrus/cedrus_dec.c
+++ b/drivers/staging/media/sunxi/cedrus/cedrus_dec.c
@@ -57,6 +57,8 @@ void cedrus_device_run(void *priv)
V4L2_CID_MPEG_VIDEO_H264_SLICE_PARAMS);
run.h264.sps = cedrus_find_control_data(ctx,
V4L2_CID_MPEG_VIDEO_H264_SPS);
+ run.h264.pred_weights = cedrus_find_control_data(ctx,
+ V4L2_CID_MPEG_VIDEO_H264_PRED_WEIGHTS);
break;
case V4L2_PIX_FMT_HEVC_SLICE:
diff --git a/drivers/staging/media/sunxi/cedrus/cedrus_h264.c b/drivers/staging/media/sunxi/cedrus/cedrus_h264.c
index cce527bbdf86..d5636dbbb622 100644
--- a/drivers/staging/media/sunxi/cedrus/cedrus_h264.c
+++ b/drivers/staging/media/sunxi/cedrus/cedrus_h264.c
@@ -256,10 +256,8 @@ static void cedrus_write_scaling_lists(struct cedrus_ctx *ctx,
static void cedrus_write_pred_weight_table(struct cedrus_ctx *ctx,
struct cedrus_run *run)
{
- const struct v4l2_ctrl_h264_slice_params *slice =
- run->h264.slice_params;
- const struct v4l2_h264_pred_weight_table *pred_weight =
- &slice->pred_weight_table;
+ const struct v4l2_ctrl_h264_pred_weights *pred_weight =
+ run->h264.pred_weights;
struct cedrus_dev *dev = ctx->dev;
int i, j, k;
@@ -367,11 +365,7 @@ static void cedrus_set_params(struct cedrus_ctx *ctx,
cedrus_skip_bits(dev, slice->header_bit_size);
- if (((pps->flags & V4L2_H264_PPS_FLAG_WEIGHTED_PRED) &&
- (slice->slice_type == V4L2_H264_SLICE_TYPE_P ||
- slice->slice_type == V4L2_H264_SLICE_TYPE_SP)) ||
- (pps->weighted_bipred_idc == 1 &&
- slice->slice_type == V4L2_H264_SLICE_TYPE_B))
+ if (V4L2_H264_CTRL_PRED_WEIGHTS_REQUIRED(pps, slice))
cedrus_write_pred_weight_table(ctx, run);
if ((slice->slice_type == V4L2_H264_SLICE_TYPE_P) ||
diff --git a/include/media/h264-ctrls.h b/include/media/h264-ctrls.h
index 3c613b84e5ae..31c6f4c5963b 100644
--- a/include/media/h264-ctrls.h
+++ b/include/media/h264-ctrls.h
@@ -36,6 +36,7 @@
#define V4L2_CID_MPEG_VIDEO_H264_DECODE_PARAMS (V4L2_CID_MPEG_BASE+1004)
#define V4L2_CID_MPEG_VIDEO_H264_DECODE_MODE (V4L2_CID_MPEG_BASE+1005)
#define V4L2_CID_MPEG_VIDEO_H264_START_CODE (V4L2_CID_MPEG_BASE+1006)
+#define V4L2_CID_MPEG_VIDEO_H264_PRED_WEIGHTS (V4L2_CID_MPEG_BASE+1007)
/* enum v4l2_ctrl_type type values */
#define V4L2_CTRL_TYPE_H264_SPS 0x0110
@@ -43,6 +44,7 @@
#define V4L2_CTRL_TYPE_H264_SCALING_MATRIX 0x0112
#define V4L2_CTRL_TYPE_H264_SLICE_PARAMS 0x0113
#define V4L2_CTRL_TYPE_H264_DECODE_PARAMS 0x0114
+#define V4L2_CTRL_TYPE_H264_PRED_WEIGHTS 0x0115
enum v4l2_mpeg_video_h264_decode_mode {
V4L2_MPEG_VIDEO_H264_DECODE_MODE_SLICE_BASED,
@@ -125,7 +127,14 @@ struct v4l2_h264_weight_factors {
__s16 chroma_offset[32][2];
};
-struct v4l2_h264_pred_weight_table {
+#define V4L2_H264_CTRL_PRED_WEIGHTS_REQUIRED(pps, slice) \
+ ((((pps)->flags & V4L2_H264_PPS_FLAG_WEIGHTED_PRED) && \
+ ((slice)->slice_type == V4L2_H264_SLICE_TYPE_P || \
+ (slice)->slice_type == V4L2_H264_SLICE_TYPE_SP)) || \
+ ((pps)->weighted_bipred_idc == 1 && \
+ (slice)->slice_type == V4L2_H264_SLICE_TYPE_B))
+
+struct v4l2_ctrl_h264_pred_weights {
__u16 luma_log2_weight_denom;
__u16 chroma_log2_weight_denom;
struct v4l2_h264_weight_factors weight_factors[2];
@@ -175,7 +184,6 @@ struct v4l2_ctrl_h264_slice_params {
__s32 delta_pic_order_cnt0;
__s32 delta_pic_order_cnt1;
- struct v4l2_h264_pred_weight_table pred_weight_table;
/* Size in bits of dec_ref_pic_marking() syntax element. */
__u32 dec_ref_pic_marking_bit_size;
/* Size in bits of pic order count syntax. */
diff --git a/include/media/v4l2-ctrls.h b/include/media/v4l2-ctrls.h
index f40e2cbb21d3..cb25f345e9ad 100644
--- a/include/media/v4l2-ctrls.h
+++ b/include/media/v4l2-ctrls.h
@@ -51,6 +51,7 @@ struct video_device;
* @p_h264_scaling_matrix: Pointer to a struct v4l2_ctrl_h264_scaling_matrix.
* @p_h264_slice_params: Pointer to a struct v4l2_ctrl_h264_slice_params.
* @p_h264_decode_params: Pointer to a struct v4l2_ctrl_h264_decode_params.
+ * @p_h264_pred_weights: Pointer to a struct v4l2_ctrl_h264_pred_weights.
* @p_vp8_frame_header: Pointer to a VP8 frame header structure.
* @p_hevc_sps: Pointer to an HEVC sequence parameter set structure.
* @p_hevc_pps: Pointer to an HEVC picture parameter set structure.
@@ -74,6 +75,7 @@ union v4l2_ctrl_ptr {
struct v4l2_ctrl_h264_scaling_matrix *p_h264_scaling_matrix;
struct v4l2_ctrl_h264_slice_params *p_h264_slice_params;
struct v4l2_ctrl_h264_decode_params *p_h264_decode_params;
+ struct v4l2_ctrl_h264_pred_weights *p_h264_pred_weights;
struct v4l2_ctrl_vp8_frame_header *p_vp8_frame_header;
struct v4l2_ctrl_hevc_sps *p_hevc_sps;
struct v4l2_ctrl_hevc_pps *p_hevc_pps;

Privacy Policy