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:: -.. c:type:: v4l2_h264_pred_weight_table + This compound control is not yet part of the public kernel API and + it is expected to change. + +.. 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 @@ -78,6 +78,13 @@ static const struct cedrus_control cedrus_controls[] = { .codec = CEDRUS_CODEC_H264, .required = true, }, + { + .cfg = { + .id = V4L2_CID_MPEG_VIDEO_H264_PRED_WEIGHTS, + }, + .codec = CEDRUS_CODEC_H264, + .required = false, + }, { .cfg = { .id = V4L2_CID_MPEG_VIDEO_H264_DECODE_MODE, 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;