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VA-API
2.22.0
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Slice parameter for HEVC encoding in main & main 10 profiles. More...
#include <va_enc_hevc.h>
Public Attributes | |
| uint32_t | slice_segment_address |
| Starting CTU address for this slice. | |
| uint32_t | num_ctu_in_slice |
| Number of CTUs in this slice. | |
| uint8_t | slice_type |
| Slice type. Corresponds to HEVC syntax element of the same name. | |
| uint8_t | slice_pic_parameter_set_id |
| Same as the HEVC bitstream syntax element. | |
| uint8_t | num_ref_idx_l0_active_minus1 |
| Maximum reference index for reference picture list 0. Range: 0 to 14, inclusive. | |
| uint8_t | num_ref_idx_l1_active_minus1 |
| Maximum reference index for reference picture list 1. Range: 0 to 14, inclusive. | |
| VAPictureHEVC | ref_pic_list0 [15] |
| Reference picture list 0 (for P slices). | |
| VAPictureHEVC | ref_pic_list1 [15] |
| Reference picture list 1 (for B slices). | |
| uint8_t | max_num_merge_cand |
| Corresponds to HEVC spec variable MaxNumMergeCand. Range: [1..5]. | |
| int8_t | slice_qp_delta |
| Same as the HEVC bitstream syntax element. | |
| int8_t | slice_cb_qp_offset |
| Same as the HEVC bitstream syntax element. | |
| int8_t | slice_cr_qp_offset |
| Same as the HEVC bitstream syntax element. | |
| int8_t | slice_beta_offset_div2 |
| Same as the HEVC bitstream syntax element. | |
| int8_t | slice_tc_offset_div2 |
| Same as the HEVC bitstream syntax element. | |
| uint32_t | pred_weight_table_bit_offset |
| bit offset of syntax element pred_weight_table() in slice segment header. It aligns with the starting position of the current packed slice header. It is used when encoder prefers to override the weighted prediction parameters passed in from application. Please refer to enable_gpu_weighted_prediction in VAEncPictureParameterBufferHEVC. | |
| uint32_t | pred_weight_table_bit_length |
| bit length of syntax element pred_weight_table() in slice segment header. It is used when encoder prefers to override the weighted prediction parameters passed in from application. Please refer to enable_gpu_weighted_prediction in VAEncPictureParameterBufferHEVC. | |
| uint32_t | va_reserved [VA_PADDING_MEDIUM - 2] |
| Reserved bytes for future use, must be zero. | |
| uint32_t | last_slice_of_pic_flag: 1 |
| Indicates if current slice is the last one in picture. | |
| uint32_t | dependent_slice_segment_flag: 1 |
| Corresponds to HEVC syntax element of the same name. | |
| uint32_t | colour_plane_id: 2 |
| Corresponds to HEVC syntax element of the same name. | |
| uint32_t | slice_temporal_mvp_enabled_flag: 1 |
| Corresponds to HEVC syntax element of the same name. | |
| uint32_t | slice_sao_luma_flag: 1 |
| Corresponds to HEVC syntax element of the same name. | |
| uint32_t | slice_sao_chroma_flag: 1 |
| Corresponds to HEVC syntax element of the same name. | |
| uint32_t | num_ref_idx_active_override_flag: 1 |
| Corresponds to HEVC syntax element of the same name. if this flag is set to 0, num_ref_idx_l0_active_minus1 should be equal to num_ref_idx_l0_default_active_minus1 as well as for that for l1. | |
| uint32_t | mvd_l1_zero_flag: 1 |
| Corresponds to HEVC syntax element of the same name. | |
| uint32_t | cabac_init_flag: 1 |
| Corresponds to HEVC syntax element of the same name. | |
| uint32_t | slice_deblocking_filter_disabled_flag: 2 |
| Corresponds to HEVC syntax element of the same name. | |
| uint32_t | slice_loop_filter_across_slices_enabled_flag: 1 |
| Corresponds to HEVC syntax element of the same name. | |
| uint32_t | collocated_from_l0_flag: 1 |
| Corresponds to HEVC syntax element of the same name. | |
pred_weight_table() | |
| uint8_t | luma_log2_weight_denom |
| Same as the HEVC bitstream syntax element. | |
| int8_t | delta_chroma_log2_weight_denom |
| Same as the HEVC bitstream syntax element. | |
| int8_t | delta_luma_weight_l0 [15] |
| Same as the HEVC bitstream syntax element. | |
| int8_t | luma_offset_l0 [15] |
| Same as the HEVC bitstream syntax element. | |
| int8_t | delta_chroma_weight_l0 [15][2] |
| Same as the HEVC bitstream syntax element. | |
| int8_t | chroma_offset_l0 [15][2] |
| Same as the HEVC spec variable ChromaOffsetL0[]. | |
| int8_t | delta_luma_weight_l1 [15] |
| Same as the HEVC bitstream syntax element. | |
| int8_t | luma_offset_l1 [15] |
| Same as the HEVC bitstream syntax element. | |
| int8_t | delta_chroma_weight_l1 [15][2] |
| Same as the HEVC bitstream syntax element. | |
| int8_t | chroma_offset_l1 [15][2] |
| Same as the HEVC spec variable ChromaOffsetL1[]. | |
Slice parameter for HEVC encoding in main & main 10 profiles.
This structure holds information for slice_segment_layer_rbsp() as defined by the HEVC specification.
If packed slice headers mode is used, i.e. if the encoding pipeline was configured with the VA_ENC_PACKED_HEADER_SLICE flag, then the driver expects two more buffers to be provided to the same vaRenderPicture() as this buffer:
1.9.1