| Message ID | 20220705085420.272912-9-benjamin.gaignard@collabora.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | Move HEVC stateless controls out of staging | expand |
On Tue, Jul 05, 2022 at 10:54:11AM +0200, Benjamin Gaignard wrote: > Add kernel-doc documentation for all the HEVC structures. > > Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com> > Acked-by: Nicolas Dufresne <nicolas.dufresne@collabora.com> > Tested-by: Jernej Skrabec <jernej.skrabec@gmail.com> > --- > version 9: > - Reword all _minus* field description > - change CVS to codec video sequence > - Fix various typo > > .../media/v4l/ext-ctrls-codec.rst | 168 +++++++------ > include/media/hevc-ctrls.h | 221 +++++++++++++++++- > 2 files changed, 313 insertions(+), 76 deletions(-) > > diff --git a/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst b/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst > index 8ba16e8742f3..eeb60c9a1af4 100644 > --- a/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst > +++ b/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst > @@ -2695,70 +2695,76 @@ enum v4l2_mpeg_video_hevc_size_of_length_field - > of H.265 specifications. > * - __u16 > - ``pic_width_in_luma_samples`` > - - > + - Specifies the width of each decoded picture in units of luma samples. > * - __u16 > - ``pic_height_in_luma_samples`` > - - > + - Specifies the height of each decoded picture in units of luma samples. > * - __u8 > - ``bit_depth_luma_minus8`` > - - > + - This value plus 8 specifies the bit depth of the samples of the luma array. > * - __u8 > - ``bit_depth_chroma_minus8`` > - - > + - This value plus 8 specifies the bit depth of the samples of the chroma arrays. > * - __u8 > - ``log2_max_pic_order_cnt_lsb_minus4`` > - - > + - This value plus 4 specifies the value of the variable MaxPicOrderCntLsb. > * - __u8 > - ``sps_max_dec_pic_buffering_minus1`` > - - > + - This value plus 1 specifies the maximum required size of the decoded picture buffer for > + the codec video sequence. > * - __u8 > - ``sps_max_num_reorder_pics`` > - - > + - Indicates the maximum allowed number of pictures. > * - __u8 > - ``sps_max_latency_increase_plus1`` > - - > + - Not equal to 0 is used to compute the value of SpsMaxLatencyPictures array. > * - __u8 > - ``log2_min_luma_coding_block_size_minus3`` > - - > + - This value plus 3 specifies the minimum luma coding block size. > * - __u8 > - ``log2_diff_max_min_luma_coding_block_size`` > - - > + - Specifies the difference between the maximum and minimum luma coding block size. > * - __u8 > - ``log2_min_luma_transform_block_size_minus2`` > - - > + - This value plus 2 specifies the minimum luma transform block size. > * - __u8 > - ``log2_diff_max_min_luma_transform_block_size`` > - - > + - Specifies the difference between the maximum and minimum luma transform block size. > * - __u8 > - ``max_transform_hierarchy_depth_inter`` > - - > + - Specifies the maximum hierarchy depth for transform units of coding units coded > + in inter prediction mode. > * - __u8 > - ``max_transform_hierarchy_depth_intra`` > - - > + - Specifies the maximum hierarchy depth for transform units of coding units coded in > + intra prediction mode. > * - __u8 > - ``pcm_sample_bit_depth_luma_minus1`` > - - > + - This value plus 1 specifies the number of bits used to represent each of PCM sample > + values of the luma component. > * - __u8 > - ``pcm_sample_bit_depth_chroma_minus1`` > - - > + - This value plus 1 specifies the number of bits used to represent each of PCM sample > + values of the chroma components. > * - __u8 > - ``log2_min_pcm_luma_coding_block_size_minus3`` > - - > + - This value plus 3 specifies the minimum size of coding blocks. > * - __u8 > - ``log2_diff_max_min_pcm_luma_coding_block_size`` > - - > + - Specifies the difference between the maximum and minimum size of coding blocks. > * - __u8 > - ``num_short_term_ref_pic_sets`` > - - > + - Specifies the number of st_ref_pic_set() syntax structures included in the SPS. > * - __u8 > - ``num_long_term_ref_pics_sps`` > - - > + - Specifies the number of candidate long-term reference pictures that are > + specified in the SPS. > * - __u8 > - ``chroma_format_idc`` > - - > + - Specifies the chroma sampling. > * - __u8 > - ``sps_max_sub_layers_minus1`` > - - > + - This value plus 1 specifies the maximum number of temporal sub-layers. > * - __u64 > - ``flags`` > - See :ref:`Sequence Parameter Set Flags <hevc_sps_flags>` > @@ -2837,46 +2843,52 @@ enum v4l2_mpeg_video_hevc_size_of_length_field - > - Identifies the PPS for reference by other syntax elements. > * - __u8 > - ``num_extra_slice_header_bits`` > - - > + - Specifies the number of extra slice header bits that are present > + in the slice header RBSP for coded pictures referring to the PPS. > * - __u8 > - ``num_ref_idx_l0_default_active_minus1`` > - - Specifies the inferred value of num_ref_idx_l0_active_minus1 > + - This value plus 1 specifies the inferred value of num_ref_idx_l0_active_minus1 Missing ending period. > * - __u8 > - ``num_ref_idx_l1_default_active_minus1`` > - - Specifies the inferred value of num_ref_idx_l1_active_minus1 > + - This value plus 1 specifies the inferred value of num_ref_idx_l1_active_minus1 Ditto. > * - __s8 > - ``init_qp_minus26`` > - - > + - This value plus 26 specifies the initial value of SliceQp Y for each slice > + referring to the PPS. > * - __u8 > - ``diff_cu_qp_delta_depth`` > - - > + - Specifies the difference between the luma coding tree block size > + and the minimum luma coding block size of coding units that > + convey cu_qp_delta_abs and cu_qp_delta_sign_flag. > * - __s8 > - ``pps_cb_qp_offset`` > - - > + - Specify the offsets to the luma quantization parameter Cb. Should be "Specifies" for consistency. > * - __s8 > - ``pps_cr_qp_offset`` > - - > + - Specify the offsets to the luma quantization parameter Cr. Ditto. > * - __u8 > - ``num_tile_columns_minus1`` > - - > + - This value plus 1 specifies the number of tile columns partitioning the picture. > * - __u8 > - ``num_tile_rows_minus1`` > - - > + - This value plus 1 specifies the number of tile rows partitioning the picture. > * - __u8 > - ``column_width_minus1[20]`` > - - > + - Plus 1 specifies the width of each tile column in units of > + coding tree blocks. > * - __u8 > - ``row_height_minus1[22]`` > - - > + - This value plus 1 specifies the height of each tile row in units of coding > + tree blocks. > * - __s8 > - ``pps_beta_offset_div2`` > - - > + - Specify the default deblocking parameter offsets for beta divided by 2. Ditto. > * - __s8 > - ``pps_tc_offset_div2`` > - - > + - Specify the default deblocking parameter offsets for tC divided by 2. Ditto. > * - __u8 > - ``log2_parallel_merge_level_minus2`` > - - > + - Plus 2 specifies the value of the variable Log2ParMrgLevel. > * - __u8 > - ``padding[4]`` > - Applications and drivers must set this to zero. > @@ -2998,10 +3010,10 @@ enum v4l2_mpeg_video_hevc_size_of_length_field - > - Offset (in bits) to the video data in the current slice data. > * - __u8 > - ``nal_unit_type`` > - - > + - Specifies the coding type of the slice (B, P or I). > * - __u8 > - ``nuh_temporal_id_plus1`` > - - > + - This value minus 1 specifies a temporal identifier for the NAL unit. > * - __u8 > - ``slice_type`` > - > @@ -3009,52 +3021,56 @@ enum v4l2_mpeg_video_hevc_size_of_length_field - > V4L2_HEVC_SLICE_TYPE_B). > * - __u8 > - ``colour_plane_id`` > - - > + - Specifies the colour plane associated with the current slice. > * - __s32 > - ``slice_pic_order_cnt`` > - - > + - Specifies the picture order count. > * - __u8 > - ``num_ref_idx_l0_active_minus1`` > - - > + - This value plus 1 specifies the maximum reference index for > + reference picture list 0 that may be used to decode the slice. > * - __u8 > - ``num_ref_idx_l1_active_minus1`` > - - > + - This value plus 1 specifies the maximum reference index for > + reference picture list 1 that may be used to decode the slice. > * - __u8 > - ``collocated_ref_idx`` > - - > + - Specifies the reference index of the collocated picture used for > + temporal motion vector prediction. > * - __u8 > - ``five_minus_max_num_merge_cand`` > - - > + - Specifies the maximum number of merging motion vector prediction > + candidates supported in the slice subtracted from 5. > * - __s8 > - ``slice_qp_delta`` > - - > + - Specifies the initial value of QpY to be used for the coding blocks in the slice. > * - __s8 > - ``slice_cb_qp_offset`` > - - > + - Specifies a difference to be added to the value of pps_cb_qp_offset. > * - __s8 > - ``slice_cr_qp_offset`` > - - > + - Specifies a difference to be added to the value of pps_cr_qp_offset. > * - __s8 > - ``slice_act_y_qp_offset`` > - - > + - screen content extension parameters Missing period, and not starting with a capital. > * - __s8 > - ``slice_act_cb_qp_offset`` > - - > + - screen content extension parameters > * - __s8 > - ``slice_act_cr_qp_offset`` > - - > + - screen content extension parameters > * - __s8 > - ``slice_beta_offset_div2`` > - - > + - Specify the deblocking parameter offsets for beta divided by 2. Ditto. To the best of my knowledge, this looks good. Reviewed-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar> Thanks, Ezequiel > * - __s8 > - ``slice_tc_offset_div2`` > - - > + - Specify the deblocking parameter offsets for tC divided by 2. > * - __u8 > - ``pic_struct`` > - - > + - Indicates whether a picture should be displayed as a frame or as one or more fields. > * - __u32 > - ``slice_segment_addr`` > - - > + - Specifies the address of the first coding tree block in the slice segment. > * - __u8 > - ``ref_idx_l0[V4L2_HEVC_DPB_ENTRIES_NUM_MAX]`` > - The list of L0 reference elements as indices in the DPB. > @@ -3219,11 +3235,9 @@ enum v4l2_mpeg_video_hevc_size_of_length_field - > - ``field_pic`` > - Whether the reference is a field picture or a frame. > See :ref:`HEVC dpb field pic Flags <hevc_dpb_field_pic_flags>` > - * - __u16 > - - ``pic_order_cnt[2]`` > - - The picture order count of the reference. Only the first element of the > - array is used for frame pictures, while the first element identifies the > - top field and the second the bottom field in field-coded pictures. > + * - __s32 > + - ``pic_order_cnt_val`` > + - The picture order count of the current picture. > * - __u8 > - ``padding[2]`` > - Applications and drivers must set this to zero. > @@ -3298,36 +3312,44 @@ enum v4l2_mpeg_video_hevc_size_of_length_field - > :stub-columns: 0 > :widths: 1 1 2 > > - * - __u8 > - - ``luma_log2_weight_denom`` > - - > - * - __s8 > - - ``delta_chroma_log2_weight_denom`` > - - > * - __s8 > - ``delta_luma_weight_l0[V4L2_HEVC_DPB_ENTRIES_NUM_MAX]`` > - - > + - The difference of the weighting factor applied to the luma > + prediction value for list 0. > * - __s8 > - ``luma_offset_l0[V4L2_HEVC_DPB_ENTRIES_NUM_MAX]`` > - - > + - The additive offset applied to the luma prediction value for list 0. > * - __s8 > - ``delta_chroma_weight_l0[V4L2_HEVC_DPB_ENTRIES_NUM_MAX][2]`` > - - > + - The difference of the weighting factor applied to the chroma > + prediction value for list 0. > * - __s8 > - ``chroma_offset_l0[V4L2_HEVC_DPB_ENTRIES_NUM_MAX][2]`` > - - > + - The difference of the additive offset applied to the chroma > + prediction values for list 0. > * - __s8 > - ``delta_luma_weight_l1[V4L2_HEVC_DPB_ENTRIES_NUM_MAX]`` > - - > + - The difference of the weighting factor applied to the luma > + prediction value for list 1. > * - __s8 > - ``luma_offset_l1[V4L2_HEVC_DPB_ENTRIES_NUM_MAX]`` > - - > + - The additive offset applied to the luma prediction value for list 1. > * - __s8 > - ``delta_chroma_weight_l1[V4L2_HEVC_DPB_ENTRIES_NUM_MAX][2]`` > - - > + - The difference of the weighting factor applied to the chroma > + prediction value for list 1. > * - __s8 > - ``chroma_offset_l1[V4L2_HEVC_DPB_ENTRIES_NUM_MAX][2]`` > - - > + - The difference of the additive offset applied to the chroma > + prediction values for list 1. > + * - __u8 > + - ``luma_log2_weight_denom`` > + - The base 2 logarithm of the denominator for all luma weighting > + factors. > + * - __s8 > + - ``delta_chroma_log2_weight_denom`` > + - The difference of the base 2 logarithm of the denominator for > + all chroma weighting factors. > * - __u8 > - ``padding[6]`` > - Applications and drivers must set this to zero. > diff --git a/include/media/hevc-ctrls.h b/include/media/hevc-ctrls.h > index f3695ab44389..57053cfa099b 100644 > --- a/include/media/hevc-ctrls.h > +++ b/include/media/hevc-ctrls.h > @@ -55,9 +55,68 @@ enum v4l2_stateless_hevc_start_code { > #define V4L2_HEVC_SPS_FLAG_SPS_TEMPORAL_MVP_ENABLED (1ULL << 7) > #define V4L2_HEVC_SPS_FLAG_STRONG_INTRA_SMOOTHING_ENABLED (1ULL << 8) > > -/* The controls are not stable at the moment and will likely be reworked. */ > +/** > + * struct v4l2_ctrl_hevc_sps - ITU-T Rec. H.265: Sequence parameter set > + * > + * @video_parameter_set_id: specifies the value of the > + * vps_video_parameter_set_id of the active VPS > + * @seq_parameter_set_id: provides an identifier for the SPS for > + * reference by other syntax elements > + * @pic_width_in_luma_samples: specifies the width of each decoded picture > + * in units of luma samples > + * @pic_height_in_luma_samples: specifies the height of each decoded picture > + * in units of luma samples > + * @bit_depth_luma_minus8: this value plus 8 specifies the bit depth of the > + * samples of the luma array > + * @bit_depth_chroma_minus8: this value plus 8 specifies the bit depth of the > + * samples of the chroma arrays > + * @log2_max_pic_order_cnt_lsb_minus4: this value plus 4 specifies the value > + * of the variable MaxPicOrderCntLsb > + * @sps_max_dec_pic_buffering_minus1: this value plus 1 specifies the maximum > + * required size of the decoded picture > + * buffer for the codec video sequence > + * @sps_max_num_reorder_pics: indicates the maximum allowed number of pictures > + * @sps_max_latency_increase_plus1: not equal to 0 is used to compute the > + * value of SpsMaxLatencyPictures array > + * @log2_min_luma_coding_block_size_minus3: this value plus 3 specifies the > + * minimum luma coding block size > + * @log2_diff_max_min_luma_coding_block_size: specifies the difference between > + * the maximum and minimum luma > + * coding block size > + * @log2_min_luma_transform_block_size_minus2: this value plus 2 specifies the > + * minimum luma transform block size > + * @log2_diff_max_min_luma_transform_block_size: specifies the difference between > + * the maximum and minimum luma > + * transform block size > + * @max_transform_hierarchy_depth_inter: specifies the maximum hierarchy > + * depth for transform units of > + * coding units coded in inter > + * prediction mode > + * @max_transform_hierarchy_depth_intra: specifies the maximum hierarchy > + * depth for transform units of > + * coding units coded in intra > + * prediction mode > + * @pcm_sample_bit_depth_luma_minus1: this value plus 1 specifies the number of > + * bits used to represent each of PCM sample > + * values of the luma component > + * @pcm_sample_bit_depth_chroma_minus1: this value plus 1 specifies the number > + * of bits used to represent each of PCM > + * sample values of the chroma components > + * @log2_min_pcm_luma_coding_block_size_minus3: this value plus 3 specifies the > + * minimum size of coding blocks > + * @log2_diff_max_min_pcm_luma_coding_block_size: specifies the difference between > + * the maximum and minimum size of > + * coding blocks > + * @num_short_term_ref_pic_sets: specifies the number of st_ref_pic_set() > + * syntax structures included in the SPS > + * @num_long_term_ref_pics_sps: specifies the number of candidate long-term > + * reference pictures that are specified in the SPS > + * @chroma_format_idc: specifies the chroma sampling > + * @sps_max_sub_layers_minus1: this value plus 1 specifies the maximum number > + * of temporal sub-layers > + * @flags: see V4L2_HEVC_SPS_FLAG_{} > + */ > struct v4l2_ctrl_hevc_sps { > - /* ISO/IEC 23008-2, ITU-T Rec. H.265: Sequence parameter set */ > __u8 video_parameter_set_id; > __u8 seq_parameter_set_id; > __u16 pic_width_in_luma_samples; > @@ -108,8 +167,43 @@ struct v4l2_ctrl_hevc_sps { > #define V4L2_HEVC_PPS_FLAG_DEBLOCKING_FILTER_CONTROL_PRESENT (1ULL << 19) > #define V4L2_HEVC_PPS_FLAG_UNIFORM_SPACING (1ULL << 20) > > +/** > + * struct v4l2_ctrl_hevc_pps - ITU-T Rec. H.265: Picture parameter set > + * > + * @pic_parameter_set_id: identifies the PPS for reference by other > + * syntax elements > + * @num_extra_slice_header_bits: specifies the number of extra slice header > + * bits that are present in the slice header RBSP > + * for coded pictures referring to the PPS. > + * @num_ref_idx_l0_default_active_minus1: this value plus 1 specifies the inferred > + * value of num_ref_idx_l0_active_minus1 > + * @num_ref_idx_l1_default_active_minus1: this value plus 1 specifies the inferred > + * value of num_ref_idx_l1_active_minus1 > + * @init_qp_minus26: this value plus 26 specifies the initial value of SliceQp Y > + * for each slice referring to the PPS > + * @diff_cu_qp_delta_depth: specifies the difference between the luma coding > + * tree block size and the minimum luma coding block > + * size of coding units that convey cu_qp_delta_abs > + * and cu_qp_delta_sign_flag > + * @pps_cb_qp_offset: specify the offsets to the luma quantization parameter Cb > + * @pps_cr_qp_offset: specify the offsets to the luma quantization parameter Cr > + * @num_tile_columns_minus1: this value plus 1 specifies the number of tile columns > + * partitioning the picture > + * @num_tile_rows_minus1: this value plus 1 specifies the number of tile rows > + * partitioning the picture > + * @column_width_minus1: this value plus 1 specifies the width of each tile column > + * in units of coding tree blocks > + * @row_height_minus1: this value plus 1 specifies the height of each tile row in > + * units of coding tree blocks > + * @pps_beta_offset_div2: specify the default deblocking parameter offsets for > + * beta divided by 2 > + * @pps_tc_offset_div2: specify the default deblocking parameter offsets for tC > + * divided by 2 > + * @log2_parallel_merge_level_minus2: this value plus 2 specifies the value of > + * the variable Log2ParMrgLevel > + * @flags: see V4L2_HEVC_PPS_FLAG_{} > + */ > struct v4l2_ctrl_hevc_pps { > - /* ISO/IEC 23008-2, ITU-T Rec. H.265: Picture parameter set */ > __u8 pic_parameter_set_id; > __u8 num_extra_slice_header_bits; > __u8 num_ref_idx_l0_default_active_minus1; > @@ -148,6 +242,14 @@ struct v4l2_ctrl_hevc_pps { > > #define V4L2_HEVC_DPB_ENTRIES_NUM_MAX 16 > > +/** > + * struct v4l2_hevc_dpb_entry - HEVC decoded picture buffer entry > + * > + * @timestamp: timestamp of the V4L2 capture buffer to use as reference. > + * @flags: long term flag for the reference frame > + * @field_pic: whether the reference is a field picture or a frame. > + * @pic_order_cnt_val: the picture order count of the reference. > + */ > struct v4l2_hevc_dpb_entry { > __u64 timestamp; > __u8 flags; > @@ -156,6 +258,31 @@ struct v4l2_hevc_dpb_entry { > __u8 padding[2]; > }; > > +/** > + * struct v4l2_hevc_pred_weight_table - HEVC weighted prediction parameters > + * > + * @delta_luma_weight_l0: the difference of the weighting factor applied > + * to the luma prediction value for list 0 > + * @luma_offset_l0: the additive offset applied to the luma prediction value > + * for list 0 > + * @delta_chroma_weight_l0: the difference of the weighting factor applied > + * to the chroma prediction values for list 0 > + * @chroma_offset_l0: the difference of the additive offset applied to > + * the chroma prediction values for list 0 > + * @delta_luma_weight_l1: the difference of the weighting factor applied > + * to the luma prediction value for list 1 > + * @luma_offset_l1: the additive offset applied to the luma prediction value > + * for list 1 > + * @delta_chroma_weight_l1: the difference of the weighting factor applied > + * to the chroma prediction values for list 1 > + * @chroma_offset_l1: the difference of the additive offset applied to > + * the chroma prediction values for list 1 > + * @luma_log2_weight_denom: the base 2 logarithm of the denominator for > + * all luma weighting factors > + * @delta_chroma_log2_weight_denom: the difference of the base 2 logarithm > + * of the denominator for all chroma > + * weighting factors > + */ > struct v4l2_hevc_pred_weight_table { > __s8 delta_luma_weight_l0[V4L2_HEVC_DPB_ENTRIES_NUM_MAX]; > __s8 luma_offset_l0[V4L2_HEVC_DPB_ENTRIES_NUM_MAX]; > @@ -184,6 +311,50 @@ struct v4l2_hevc_pred_weight_table { > #define V4L2_HEVC_SLICE_PARAMS_FLAG_SLICE_LOOP_FILTER_ACROSS_SLICES_ENABLED (1ULL << 8) > #define V4L2_HEVC_SLICE_PARAMS_FLAG_DEPENDENT_SLICE_SEGMENT (1ULL << 9) > > +/** > + * struct v4l2_ctrl_hevc_slice_params - HEVC slice parameters > + * > + * @bit_size: size (in bits) of the current slice data > + * @data_bit_offset: offset (in bits) to the video data in the current slice data > + * @nal_unit_type: specifies the coding type of the slice (B, P or I) > + * @nuh_temporal_id_plus1: minus 1 specifies a temporal identifier for the NAL unit > + * @slice_type: see V4L2_HEVC_SLICE_TYPE_{} > + * @colour_plane_id: specifies the colour plane associated with the current slice > + * @slice_pic_order_cnt: specifies the picture order count > + * @num_ref_idx_l0_active_minus1: this value plus 1 specifies the maximum reference > + * index for reference picture list 0 that may be > + * used to decode the slice > + * @num_ref_idx_l1_active_minus1: this value plus 1 specifies the maximum reference > + * index for reference picture list 1 that may be > + * used to decode the slice > + * @collocated_ref_idx: specifies the reference index of the collocated picture used > + * for temporal motion vector prediction > + * @five_minus_max_num_merge_cand: specifies the maximum number of merging > + * motion vector prediction candidates supported in > + * the slice subtracted from 5 > + * @slice_qp_delta: specifies the initial value of QpY to be used for the coding > + * blocks in the slice > + * @slice_cb_qp_offset: specifies a difference to be added to the value of pps_cb_qp_offset > + * @slice_cr_qp_offset: specifies a difference to be added to the value of pps_cr_qp_offset > + * @slice_act_y_qp_offset: screen content extension parameters > + * @slice_act_cb_qp_offset: screen content extension parameters > + * @slice_act_cr_qp_offset: screen content extension parameters > + * @slice_beta_offset_div2: specify the deblocking parameter offsets for beta divided by 2 > + * @slice_tc_offset_div2: specify the deblocking parameter offsets for tC divided by 2 > + * @pic_struct: indicates whether a picture should be displayed as a frame or as one or > + * more fields > + * @slice_segment_addr: specifies the address of the first coding tree block in > + * the slice segment > + * @ref_idx_l0: the list of L0 reference elements as indices in the DPB > + * @ref_idx_l1: the list of L1 reference elements as indices in the DPB > + * @short_term_ref_pic_set_size: specifies the size of short-term reference > + * pictures included in the SPS > + * @long_term_ref_pic_set_size: specifies the size of long-term reference > + * picture include in the SPS > + * @pred_weight_table: the prediction weight coefficients for inter-picture > + * prediction > + * @flags: see V4L2_HEVC_SLICE_PARAMS_FLAG_{} > + */ > struct v4l2_ctrl_hevc_slice_params { > __u32 bit_size; > __u32 data_bit_offset; > @@ -230,6 +401,28 @@ struct v4l2_ctrl_hevc_slice_params { > #define V4L2_HEVC_DECODE_PARAM_FLAG_IDR_PIC 0x2 > #define V4L2_HEVC_DECODE_PARAM_FLAG_NO_OUTPUT_OF_PRIOR 0x4 > > +/** > + * struct v4l2_ctrl_hevc_decode_params - HEVC decode parameters > + * > + * @pic_order_cnt_val: picture order count > + * @short_term_ref_pic_set_size: specifies the size of short-term reference > + * pictures set included in the SPS of the first slice > + * @long_term_ref_pic_set_size: specifies the size of long-term reference > + * pictures set include in the SPS of the first slice > + * @num_active_dpb_entries: the number of entries in dpb > + * @dpb: the decoded picture buffer, for meta-data about reference frames > + * @num_poc_st_curr_before: the number of reference pictures in the short-term > + * set that come before the current frame > + * @num_poc_st_curr_after: the number of reference pictures in the short-term > + * set that come after the current frame > + * @num_poc_lt_curr: the number of reference pictures in the long-term set > + * @poc_st_curr_before: provides the index of the short term before references > + * in DPB array > + * @poc_st_curr_after: provides the index of the short term after references > + * in DPB array > + * @poc_lt_curr: provides the index of the long term references in DPB array > + * @flags: see V4L2_HEVC_DECODE_PARAM_FLAG_{} > + */ > struct v4l2_ctrl_hevc_decode_params { > __s32 pic_order_cnt_val; > __u16 short_term_ref_pic_set_size; > @@ -245,6 +438,28 @@ struct v4l2_ctrl_hevc_decode_params { > __u64 flags; > }; > > +/** > + * struct v4l2_ctrl_hevc_scaling_matrix - HEVC scaling lists parameters > + * > + * @scaling_list_4x4: scaling list is used for the scaling process for > + * transform coefficients. The values on each scaling > + * list are expected in raster scan order > + * @scaling_list_8x8: scaling list is used for the scaling process for > + * transform coefficients. The values on each scaling > + * list are expected in raster scan order > + * @scaling_list_16x16: scaling list is used for the scaling process for > + * transform coefficients. The values on each scaling > + * list are expected in raster scan order > + * @scaling_list_32x32: scaling list is used for the scaling process for > + * transform coefficients. The values on each scaling > + * list are expected in raster scan order > + * @scaling_list_dc_coef_16x16: scaling list is used for the scaling process > + * for transform coefficients. The values on each > + * scaling list are expected in raster scan order. > + * @scaling_list_dc_coef_32x32: scaling list is used for the scaling process > + * for transform coefficients. The values on each > + * scaling list are expected in raster scan order. > + */ > struct v4l2_ctrl_hevc_scaling_matrix { > __u8 scaling_list_4x4[6][16]; > __u8 scaling_list_8x8[6][64]; > -- > 2.32.0 >
diff --git a/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst b/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst index 8ba16e8742f3..eeb60c9a1af4 100644 --- a/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst +++ b/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst @@ -2695,70 +2695,76 @@ enum v4l2_mpeg_video_hevc_size_of_length_field - of H.265 specifications. * - __u16 - ``pic_width_in_luma_samples`` - - + - Specifies the width of each decoded picture in units of luma samples. * - __u16 - ``pic_height_in_luma_samples`` - - + - Specifies the height of each decoded picture in units of luma samples. * - __u8 - ``bit_depth_luma_minus8`` - - + - This value plus 8 specifies the bit depth of the samples of the luma array. * - __u8 - ``bit_depth_chroma_minus8`` - - + - This value plus 8 specifies the bit depth of the samples of the chroma arrays. * - __u8 - ``log2_max_pic_order_cnt_lsb_minus4`` - - + - This value plus 4 specifies the value of the variable MaxPicOrderCntLsb. * - __u8 - ``sps_max_dec_pic_buffering_minus1`` - - + - This value plus 1 specifies the maximum required size of the decoded picture buffer for + the codec video sequence. * - __u8 - ``sps_max_num_reorder_pics`` - - + - Indicates the maximum allowed number of pictures. * - __u8 - ``sps_max_latency_increase_plus1`` - - + - Not equal to 0 is used to compute the value of SpsMaxLatencyPictures array. * - __u8 - ``log2_min_luma_coding_block_size_minus3`` - - + - This value plus 3 specifies the minimum luma coding block size. * - __u8 - ``log2_diff_max_min_luma_coding_block_size`` - - + - Specifies the difference between the maximum and minimum luma coding block size. * - __u8 - ``log2_min_luma_transform_block_size_minus2`` - - + - This value plus 2 specifies the minimum luma transform block size. * - __u8 - ``log2_diff_max_min_luma_transform_block_size`` - - + - Specifies the difference between the maximum and minimum luma transform block size. * - __u8 - ``max_transform_hierarchy_depth_inter`` - - + - Specifies the maximum hierarchy depth for transform units of coding units coded + in inter prediction mode. * - __u8 - ``max_transform_hierarchy_depth_intra`` - - + - Specifies the maximum hierarchy depth for transform units of coding units coded in + intra prediction mode. * - __u8 - ``pcm_sample_bit_depth_luma_minus1`` - - + - This value plus 1 specifies the number of bits used to represent each of PCM sample + values of the luma component. * - __u8 - ``pcm_sample_bit_depth_chroma_minus1`` - - + - This value plus 1 specifies the number of bits used to represent each of PCM sample + values of the chroma components. * - __u8 - ``log2_min_pcm_luma_coding_block_size_minus3`` - - + - This value plus 3 specifies the minimum size of coding blocks. * - __u8 - ``log2_diff_max_min_pcm_luma_coding_block_size`` - - + - Specifies the difference between the maximum and minimum size of coding blocks. * - __u8 - ``num_short_term_ref_pic_sets`` - - + - Specifies the number of st_ref_pic_set() syntax structures included in the SPS. * - __u8 - ``num_long_term_ref_pics_sps`` - - + - Specifies the number of candidate long-term reference pictures that are + specified in the SPS. * - __u8 - ``chroma_format_idc`` - - + - Specifies the chroma sampling. * - __u8 - ``sps_max_sub_layers_minus1`` - - + - This value plus 1 specifies the maximum number of temporal sub-layers. * - __u64 - ``flags`` - See :ref:`Sequence Parameter Set Flags <hevc_sps_flags>` @@ -2837,46 +2843,52 @@ enum v4l2_mpeg_video_hevc_size_of_length_field - - Identifies the PPS for reference by other syntax elements. * - __u8 - ``num_extra_slice_header_bits`` - - + - Specifies the number of extra slice header bits that are present + in the slice header RBSP for coded pictures referring to the PPS. * - __u8 - ``num_ref_idx_l0_default_active_minus1`` - - Specifies the inferred value of num_ref_idx_l0_active_minus1 + - This value plus 1 specifies the inferred value of num_ref_idx_l0_active_minus1 * - __u8 - ``num_ref_idx_l1_default_active_minus1`` - - Specifies the inferred value of num_ref_idx_l1_active_minus1 + - This value plus 1 specifies the inferred value of num_ref_idx_l1_active_minus1 * - __s8 - ``init_qp_minus26`` - - + - This value plus 26 specifies the initial value of SliceQp Y for each slice + referring to the PPS. * - __u8 - ``diff_cu_qp_delta_depth`` - - + - Specifies the difference between the luma coding tree block size + and the minimum luma coding block size of coding units that + convey cu_qp_delta_abs and cu_qp_delta_sign_flag. * - __s8 - ``pps_cb_qp_offset`` - - + - Specify the offsets to the luma quantization parameter Cb. * - __s8 - ``pps_cr_qp_offset`` - - + - Specify the offsets to the luma quantization parameter Cr. * - __u8 - ``num_tile_columns_minus1`` - - + - This value plus 1 specifies the number of tile columns partitioning the picture. * - __u8 - ``num_tile_rows_minus1`` - - + - This value plus 1 specifies the number of tile rows partitioning the picture. * - __u8 - ``column_width_minus1[20]`` - - + - Plus 1 specifies the width of each tile column in units of + coding tree blocks. * - __u8 - ``row_height_minus1[22]`` - - + - This value plus 1 specifies the height of each tile row in units of coding + tree blocks. * - __s8 - ``pps_beta_offset_div2`` - - + - Specify the default deblocking parameter offsets for beta divided by 2. * - __s8 - ``pps_tc_offset_div2`` - - + - Specify the default deblocking parameter offsets for tC divided by 2. * - __u8 - ``log2_parallel_merge_level_minus2`` - - + - Plus 2 specifies the value of the variable Log2ParMrgLevel. * - __u8 - ``padding[4]`` - Applications and drivers must set this to zero. @@ -2998,10 +3010,10 @@ enum v4l2_mpeg_video_hevc_size_of_length_field - - Offset (in bits) to the video data in the current slice data. * - __u8 - ``nal_unit_type`` - - + - Specifies the coding type of the slice (B, P or I). * - __u8 - ``nuh_temporal_id_plus1`` - - + - This value minus 1 specifies a temporal identifier for the NAL unit. * - __u8 - ``slice_type`` - @@ -3009,52 +3021,56 @@ enum v4l2_mpeg_video_hevc_size_of_length_field - V4L2_HEVC_SLICE_TYPE_B). * - __u8 - ``colour_plane_id`` - - + - Specifies the colour plane associated with the current slice. * - __s32 - ``slice_pic_order_cnt`` - - + - Specifies the picture order count. * - __u8 - ``num_ref_idx_l0_active_minus1`` - - + - This value plus 1 specifies the maximum reference index for + reference picture list 0 that may be used to decode the slice. * - __u8 - ``num_ref_idx_l1_active_minus1`` - - + - This value plus 1 specifies the maximum reference index for + reference picture list 1 that may be used to decode the slice. * - __u8 - ``collocated_ref_idx`` - - + - Specifies the reference index of the collocated picture used for + temporal motion vector prediction. * - __u8 - ``five_minus_max_num_merge_cand`` - - + - Specifies the maximum number of merging motion vector prediction + candidates supported in the slice subtracted from 5. * - __s8 - ``slice_qp_delta`` - - + - Specifies the initial value of QpY to be used for the coding blocks in the slice. * - __s8 - ``slice_cb_qp_offset`` - - + - Specifies a difference to be added to the value of pps_cb_qp_offset. * - __s8 - ``slice_cr_qp_offset`` - - + - Specifies a difference to be added to the value of pps_cr_qp_offset. * - __s8 - ``slice_act_y_qp_offset`` - - + - screen content extension parameters * - __s8 - ``slice_act_cb_qp_offset`` - - + - screen content extension parameters * - __s8 - ``slice_act_cr_qp_offset`` - - + - screen content extension parameters * - __s8 - ``slice_beta_offset_div2`` - - + - Specify the deblocking parameter offsets for beta divided by 2. * - __s8 - ``slice_tc_offset_div2`` - - + - Specify the deblocking parameter offsets for tC divided by 2. * - __u8 - ``pic_struct`` - - + - Indicates whether a picture should be displayed as a frame or as one or more fields. * - __u32 - ``slice_segment_addr`` - - + - Specifies the address of the first coding tree block in the slice segment. * - __u8 - ``ref_idx_l0[V4L2_HEVC_DPB_ENTRIES_NUM_MAX]`` - The list of L0 reference elements as indices in the DPB. @@ -3219,11 +3235,9 @@ enum v4l2_mpeg_video_hevc_size_of_length_field - - ``field_pic`` - Whether the reference is a field picture or a frame. See :ref:`HEVC dpb field pic Flags <hevc_dpb_field_pic_flags>` - * - __u16 - - ``pic_order_cnt[2]`` - - The picture order count of the reference. Only the first element of the - array is used for frame pictures, while the first element identifies the - top field and the second the bottom field in field-coded pictures. + * - __s32 + - ``pic_order_cnt_val`` + - The picture order count of the current picture. * - __u8 - ``padding[2]`` - Applications and drivers must set this to zero. @@ -3298,36 +3312,44 @@ enum v4l2_mpeg_video_hevc_size_of_length_field - :stub-columns: 0 :widths: 1 1 2 - * - __u8 - - ``luma_log2_weight_denom`` - - - * - __s8 - - ``delta_chroma_log2_weight_denom`` - - * - __s8 - ``delta_luma_weight_l0[V4L2_HEVC_DPB_ENTRIES_NUM_MAX]`` - - + - The difference of the weighting factor applied to the luma + prediction value for list 0. * - __s8 - ``luma_offset_l0[V4L2_HEVC_DPB_ENTRIES_NUM_MAX]`` - - + - The additive offset applied to the luma prediction value for list 0. * - __s8 - ``delta_chroma_weight_l0[V4L2_HEVC_DPB_ENTRIES_NUM_MAX][2]`` - - + - The difference of the weighting factor applied to the chroma + prediction value for list 0. * - __s8 - ``chroma_offset_l0[V4L2_HEVC_DPB_ENTRIES_NUM_MAX][2]`` - - + - The difference of the additive offset applied to the chroma + prediction values for list 0. * - __s8 - ``delta_luma_weight_l1[V4L2_HEVC_DPB_ENTRIES_NUM_MAX]`` - - + - The difference of the weighting factor applied to the luma + prediction value for list 1. * - __s8 - ``luma_offset_l1[V4L2_HEVC_DPB_ENTRIES_NUM_MAX]`` - - + - The additive offset applied to the luma prediction value for list 1. * - __s8 - ``delta_chroma_weight_l1[V4L2_HEVC_DPB_ENTRIES_NUM_MAX][2]`` - - + - The difference of the weighting factor applied to the chroma + prediction value for list 1. * - __s8 - ``chroma_offset_l1[V4L2_HEVC_DPB_ENTRIES_NUM_MAX][2]`` - - + - The difference of the additive offset applied to the chroma + prediction values for list 1. + * - __u8 + - ``luma_log2_weight_denom`` + - The base 2 logarithm of the denominator for all luma weighting + factors. + * - __s8 + - ``delta_chroma_log2_weight_denom`` + - The difference of the base 2 logarithm of the denominator for + all chroma weighting factors. * - __u8 - ``padding[6]`` - Applications and drivers must set this to zero. diff --git a/include/media/hevc-ctrls.h b/include/media/hevc-ctrls.h index f3695ab44389..57053cfa099b 100644 --- a/include/media/hevc-ctrls.h +++ b/include/media/hevc-ctrls.h @@ -55,9 +55,68 @@ enum v4l2_stateless_hevc_start_code { #define V4L2_HEVC_SPS_FLAG_SPS_TEMPORAL_MVP_ENABLED (1ULL << 7) #define V4L2_HEVC_SPS_FLAG_STRONG_INTRA_SMOOTHING_ENABLED (1ULL << 8) -/* The controls are not stable at the moment and will likely be reworked. */ +/** + * struct v4l2_ctrl_hevc_sps - ITU-T Rec. H.265: Sequence parameter set + * + * @video_parameter_set_id: specifies the value of the + * vps_video_parameter_set_id of the active VPS + * @seq_parameter_set_id: provides an identifier for the SPS for + * reference by other syntax elements + * @pic_width_in_luma_samples: specifies the width of each decoded picture + * in units of luma samples + * @pic_height_in_luma_samples: specifies the height of each decoded picture + * in units of luma samples + * @bit_depth_luma_minus8: this value plus 8 specifies the bit depth of the + * samples of the luma array + * @bit_depth_chroma_minus8: this value plus 8 specifies the bit depth of the + * samples of the chroma arrays + * @log2_max_pic_order_cnt_lsb_minus4: this value plus 4 specifies the value + * of the variable MaxPicOrderCntLsb + * @sps_max_dec_pic_buffering_minus1: this value plus 1 specifies the maximum + * required size of the decoded picture + * buffer for the codec video sequence + * @sps_max_num_reorder_pics: indicates the maximum allowed number of pictures + * @sps_max_latency_increase_plus1: not equal to 0 is used to compute the + * value of SpsMaxLatencyPictures array + * @log2_min_luma_coding_block_size_minus3: this value plus 3 specifies the + * minimum luma coding block size + * @log2_diff_max_min_luma_coding_block_size: specifies the difference between + * the maximum and minimum luma + * coding block size + * @log2_min_luma_transform_block_size_minus2: this value plus 2 specifies the + * minimum luma transform block size + * @log2_diff_max_min_luma_transform_block_size: specifies the difference between + * the maximum and minimum luma + * transform block size + * @max_transform_hierarchy_depth_inter: specifies the maximum hierarchy + * depth for transform units of + * coding units coded in inter + * prediction mode + * @max_transform_hierarchy_depth_intra: specifies the maximum hierarchy + * depth for transform units of + * coding units coded in intra + * prediction mode + * @pcm_sample_bit_depth_luma_minus1: this value plus 1 specifies the number of + * bits used to represent each of PCM sample + * values of the luma component + * @pcm_sample_bit_depth_chroma_minus1: this value plus 1 specifies the number + * of bits used to represent each of PCM + * sample values of the chroma components + * @log2_min_pcm_luma_coding_block_size_minus3: this value plus 3 specifies the + * minimum size of coding blocks + * @log2_diff_max_min_pcm_luma_coding_block_size: specifies the difference between + * the maximum and minimum size of + * coding blocks + * @num_short_term_ref_pic_sets: specifies the number of st_ref_pic_set() + * syntax structures included in the SPS + * @num_long_term_ref_pics_sps: specifies the number of candidate long-term + * reference pictures that are specified in the SPS + * @chroma_format_idc: specifies the chroma sampling + * @sps_max_sub_layers_minus1: this value plus 1 specifies the maximum number + * of temporal sub-layers + * @flags: see V4L2_HEVC_SPS_FLAG_{} + */ struct v4l2_ctrl_hevc_sps { - /* ISO/IEC 23008-2, ITU-T Rec. H.265: Sequence parameter set */ __u8 video_parameter_set_id; __u8 seq_parameter_set_id; __u16 pic_width_in_luma_samples; @@ -108,8 +167,43 @@ struct v4l2_ctrl_hevc_sps { #define V4L2_HEVC_PPS_FLAG_DEBLOCKING_FILTER_CONTROL_PRESENT (1ULL << 19) #define V4L2_HEVC_PPS_FLAG_UNIFORM_SPACING (1ULL << 20) +/** + * struct v4l2_ctrl_hevc_pps - ITU-T Rec. H.265: Picture parameter set + * + * @pic_parameter_set_id: identifies the PPS for reference by other + * syntax elements + * @num_extra_slice_header_bits: specifies the number of extra slice header + * bits that are present in the slice header RBSP + * for coded pictures referring to the PPS. + * @num_ref_idx_l0_default_active_minus1: this value plus 1 specifies the inferred + * value of num_ref_idx_l0_active_minus1 + * @num_ref_idx_l1_default_active_minus1: this value plus 1 specifies the inferred + * value of num_ref_idx_l1_active_minus1 + * @init_qp_minus26: this value plus 26 specifies the initial value of SliceQp Y + * for each slice referring to the PPS + * @diff_cu_qp_delta_depth: specifies the difference between the luma coding + * tree block size and the minimum luma coding block + * size of coding units that convey cu_qp_delta_abs + * and cu_qp_delta_sign_flag + * @pps_cb_qp_offset: specify the offsets to the luma quantization parameter Cb + * @pps_cr_qp_offset: specify the offsets to the luma quantization parameter Cr + * @num_tile_columns_minus1: this value plus 1 specifies the number of tile columns + * partitioning the picture + * @num_tile_rows_minus1: this value plus 1 specifies the number of tile rows + * partitioning the picture + * @column_width_minus1: this value plus 1 specifies the width of each tile column + * in units of coding tree blocks + * @row_height_minus1: this value plus 1 specifies the height of each tile row in + * units of coding tree blocks + * @pps_beta_offset_div2: specify the default deblocking parameter offsets for + * beta divided by 2 + * @pps_tc_offset_div2: specify the default deblocking parameter offsets for tC + * divided by 2 + * @log2_parallel_merge_level_minus2: this value plus 2 specifies the value of + * the variable Log2ParMrgLevel + * @flags: see V4L2_HEVC_PPS_FLAG_{} + */ struct v4l2_ctrl_hevc_pps { - /* ISO/IEC 23008-2, ITU-T Rec. H.265: Picture parameter set */ __u8 pic_parameter_set_id; __u8 num_extra_slice_header_bits; __u8 num_ref_idx_l0_default_active_minus1; @@ -148,6 +242,14 @@ struct v4l2_ctrl_hevc_pps { #define V4L2_HEVC_DPB_ENTRIES_NUM_MAX 16 +/** + * struct v4l2_hevc_dpb_entry - HEVC decoded picture buffer entry + * + * @timestamp: timestamp of the V4L2 capture buffer to use as reference. + * @flags: long term flag for the reference frame + * @field_pic: whether the reference is a field picture or a frame. + * @pic_order_cnt_val: the picture order count of the reference. + */ struct v4l2_hevc_dpb_entry { __u64 timestamp; __u8 flags; @@ -156,6 +258,31 @@ struct v4l2_hevc_dpb_entry { __u8 padding[2]; }; +/** + * struct v4l2_hevc_pred_weight_table - HEVC weighted prediction parameters + * + * @delta_luma_weight_l0: the difference of the weighting factor applied + * to the luma prediction value for list 0 + * @luma_offset_l0: the additive offset applied to the luma prediction value + * for list 0 + * @delta_chroma_weight_l0: the difference of the weighting factor applied + * to the chroma prediction values for list 0 + * @chroma_offset_l0: the difference of the additive offset applied to + * the chroma prediction values for list 0 + * @delta_luma_weight_l1: the difference of the weighting factor applied + * to the luma prediction value for list 1 + * @luma_offset_l1: the additive offset applied to the luma prediction value + * for list 1 + * @delta_chroma_weight_l1: the difference of the weighting factor applied + * to the chroma prediction values for list 1 + * @chroma_offset_l1: the difference of the additive offset applied to + * the chroma prediction values for list 1 + * @luma_log2_weight_denom: the base 2 logarithm of the denominator for + * all luma weighting factors + * @delta_chroma_log2_weight_denom: the difference of the base 2 logarithm + * of the denominator for all chroma + * weighting factors + */ struct v4l2_hevc_pred_weight_table { __s8 delta_luma_weight_l0[V4L2_HEVC_DPB_ENTRIES_NUM_MAX]; __s8 luma_offset_l0[V4L2_HEVC_DPB_ENTRIES_NUM_MAX]; @@ -184,6 +311,50 @@ struct v4l2_hevc_pred_weight_table { #define V4L2_HEVC_SLICE_PARAMS_FLAG_SLICE_LOOP_FILTER_ACROSS_SLICES_ENABLED (1ULL << 8) #define V4L2_HEVC_SLICE_PARAMS_FLAG_DEPENDENT_SLICE_SEGMENT (1ULL << 9) +/** + * struct v4l2_ctrl_hevc_slice_params - HEVC slice parameters + * + * @bit_size: size (in bits) of the current slice data + * @data_bit_offset: offset (in bits) to the video data in the current slice data + * @nal_unit_type: specifies the coding type of the slice (B, P or I) + * @nuh_temporal_id_plus1: minus 1 specifies a temporal identifier for the NAL unit + * @slice_type: see V4L2_HEVC_SLICE_TYPE_{} + * @colour_plane_id: specifies the colour plane associated with the current slice + * @slice_pic_order_cnt: specifies the picture order count + * @num_ref_idx_l0_active_minus1: this value plus 1 specifies the maximum reference + * index for reference picture list 0 that may be + * used to decode the slice + * @num_ref_idx_l1_active_minus1: this value plus 1 specifies the maximum reference + * index for reference picture list 1 that may be + * used to decode the slice + * @collocated_ref_idx: specifies the reference index of the collocated picture used + * for temporal motion vector prediction + * @five_minus_max_num_merge_cand: specifies the maximum number of merging + * motion vector prediction candidates supported in + * the slice subtracted from 5 + * @slice_qp_delta: specifies the initial value of QpY to be used for the coding + * blocks in the slice + * @slice_cb_qp_offset: specifies a difference to be added to the value of pps_cb_qp_offset + * @slice_cr_qp_offset: specifies a difference to be added to the value of pps_cr_qp_offset + * @slice_act_y_qp_offset: screen content extension parameters + * @slice_act_cb_qp_offset: screen content extension parameters + * @slice_act_cr_qp_offset: screen content extension parameters + * @slice_beta_offset_div2: specify the deblocking parameter offsets for beta divided by 2 + * @slice_tc_offset_div2: specify the deblocking parameter offsets for tC divided by 2 + * @pic_struct: indicates whether a picture should be displayed as a frame or as one or + * more fields + * @slice_segment_addr: specifies the address of the first coding tree block in + * the slice segment + * @ref_idx_l0: the list of L0 reference elements as indices in the DPB + * @ref_idx_l1: the list of L1 reference elements as indices in the DPB + * @short_term_ref_pic_set_size: specifies the size of short-term reference + * pictures included in the SPS + * @long_term_ref_pic_set_size: specifies the size of long-term reference + * picture include in the SPS + * @pred_weight_table: the prediction weight coefficients for inter-picture + * prediction + * @flags: see V4L2_HEVC_SLICE_PARAMS_FLAG_{} + */ struct v4l2_ctrl_hevc_slice_params { __u32 bit_size; __u32 data_bit_offset; @@ -230,6 +401,28 @@ struct v4l2_ctrl_hevc_slice_params { #define V4L2_HEVC_DECODE_PARAM_FLAG_IDR_PIC 0x2 #define V4L2_HEVC_DECODE_PARAM_FLAG_NO_OUTPUT_OF_PRIOR 0x4 +/** + * struct v4l2_ctrl_hevc_decode_params - HEVC decode parameters + * + * @pic_order_cnt_val: picture order count + * @short_term_ref_pic_set_size: specifies the size of short-term reference + * pictures set included in the SPS of the first slice + * @long_term_ref_pic_set_size: specifies the size of long-term reference + * pictures set include in the SPS of the first slice + * @num_active_dpb_entries: the number of entries in dpb + * @dpb: the decoded picture buffer, for meta-data about reference frames + * @num_poc_st_curr_before: the number of reference pictures in the short-term + * set that come before the current frame + * @num_poc_st_curr_after: the number of reference pictures in the short-term + * set that come after the current frame + * @num_poc_lt_curr: the number of reference pictures in the long-term set + * @poc_st_curr_before: provides the index of the short term before references + * in DPB array + * @poc_st_curr_after: provides the index of the short term after references + * in DPB array + * @poc_lt_curr: provides the index of the long term references in DPB array + * @flags: see V4L2_HEVC_DECODE_PARAM_FLAG_{} + */ struct v4l2_ctrl_hevc_decode_params { __s32 pic_order_cnt_val; __u16 short_term_ref_pic_set_size; @@ -245,6 +438,28 @@ struct v4l2_ctrl_hevc_decode_params { __u64 flags; }; +/** + * struct v4l2_ctrl_hevc_scaling_matrix - HEVC scaling lists parameters + * + * @scaling_list_4x4: scaling list is used for the scaling process for + * transform coefficients. The values on each scaling + * list are expected in raster scan order + * @scaling_list_8x8: scaling list is used for the scaling process for + * transform coefficients. The values on each scaling + * list are expected in raster scan order + * @scaling_list_16x16: scaling list is used for the scaling process for + * transform coefficients. The values on each scaling + * list are expected in raster scan order + * @scaling_list_32x32: scaling list is used for the scaling process for + * transform coefficients. The values on each scaling + * list are expected in raster scan order + * @scaling_list_dc_coef_16x16: scaling list is used for the scaling process + * for transform coefficients. The values on each + * scaling list are expected in raster scan order. + * @scaling_list_dc_coef_32x32: scaling list is used for the scaling process + * for transform coefficients. The values on each + * scaling list are expected in raster scan order. + */ struct v4l2_ctrl_hevc_scaling_matrix { __u8 scaling_list_4x4[6][16]; __u8 scaling_list_8x8[6][64];