diff options
Diffstat (limited to 'drivers/media/platform/allegro-dvt/nal-hevc.h')
| -rw-r--r-- | drivers/media/platform/allegro-dvt/nal-hevc.h | 519 |
1 files changed, 519 insertions, 0 deletions
diff --git a/drivers/media/platform/allegro-dvt/nal-hevc.h b/drivers/media/platform/allegro-dvt/nal-hevc.h new file mode 100644 index 000000000..eb46f12aa --- /dev/null +++ b/drivers/media/platform/allegro-dvt/nal-hevc.h @@ -0,0 +1,519 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright (C) 2019 Pengutronix, Michael Tretter <kernel@pengutronix.de> + * + * Convert NAL units between raw byte sequence payloads (RBSP) and C structs. + */ + +#ifndef __NAL_HEVC_H__ +#define __NAL_HEVC_H__ + +#include <linux/errno.h> +#include <linux/kernel.h> +#include <linux/types.h> +#include <linux/v4l2-controls.h> +#include <linux/videodev2.h> + +struct nal_hevc_profile_tier_level { + unsigned int general_profile_space; + unsigned int general_tier_flag; + unsigned int general_profile_idc; + unsigned int general_profile_compatibility_flag[32]; + unsigned int general_progressive_source_flag; + unsigned int general_interlaced_source_flag; + unsigned int general_non_packed_constraint_flag; + unsigned int general_frame_only_constraint_flag; + union { + struct { + unsigned int general_max_12bit_constraint_flag; + unsigned int general_max_10bit_constraint_flag; + unsigned int general_max_8bit_constraint_flag; + unsigned int general_max_422chroma_constraint_flag; + unsigned int general_max_420chroma_constraint_flag; + unsigned int general_max_monochrome_constraint_flag; + unsigned int general_intra_constraint_flag; + unsigned int general_one_picture_only_constraint_flag; + unsigned int general_lower_bit_rate_constraint_flag; + union { + struct { + unsigned int general_max_14bit_constraint_flag; + unsigned int general_reserved_zero_33bits; + }; + unsigned int general_reserved_zero_34bits; + }; + }; + struct { + unsigned int general_reserved_zero_7bits; + /* unsigned int general_one_picture_only_constraint_flag; */ + unsigned int general_reserved_zero_35bits; + }; + unsigned int general_reserved_zero_43bits; + }; + union { + unsigned int general_inbld_flag; + unsigned int general_reserved_zero_bit; + }; + unsigned int general_level_idc; +}; + +/* + * struct nal_hevc_vps - Video parameter set + * + * C struct representation of the video parameter set NAL unit as defined by + * Rec. ITU-T H.265 (02/2018) 7.3.2.1 Video parameter set RBSP syntax + */ +struct nal_hevc_vps { + unsigned int video_parameter_set_id; + unsigned int base_layer_internal_flag; + unsigned int base_layer_available_flag; + unsigned int max_layers_minus1; + unsigned int max_sub_layers_minus1; + unsigned int temporal_id_nesting_flag; + struct nal_hevc_profile_tier_level profile_tier_level; + unsigned int sub_layer_ordering_info_present_flag; + struct { + unsigned int max_dec_pic_buffering_minus1[7]; + unsigned int max_num_reorder_pics[7]; + unsigned int max_latency_increase_plus1[7]; + }; + unsigned int max_layer_id; + unsigned int num_layer_sets_minus1; + unsigned int layer_id_included_flag[1024][64]; + unsigned int timing_info_present_flag; + struct { + unsigned int num_units_in_tick; + unsigned int time_scale; + unsigned int poc_proportional_to_timing_flag; + unsigned int num_ticks_poc_diff_one_minus1; + unsigned int num_hrd_parameters; + struct { + unsigned int hrd_layer_set_idx[0]; + unsigned int cprms_present_flag[0]; + }; + /* hrd_parameters( cprms_present_flag[ i ], max_sub_layers_minus1 ) */ + }; + unsigned int extension_flag; + unsigned int extension_data_flag; +}; + +struct nal_hevc_sub_layer_hrd_parameters { + unsigned int bit_rate_value_minus1[1]; + unsigned int cpb_size_value_minus1[1]; + unsigned int cbr_flag[1]; +}; + +struct nal_hevc_hrd_parameters { + unsigned int nal_hrd_parameters_present_flag; + unsigned int vcl_hrd_parameters_present_flag; + struct { + unsigned int sub_pic_hrd_params_present_flag; + struct { + unsigned int tick_divisor_minus2; + unsigned int du_cpb_removal_delay_increment_length_minus1; + unsigned int sub_pic_cpb_params_in_pic_timing_sei_flag; + unsigned int dpb_output_delay_du_length_minus1; + }; + unsigned int bit_rate_scale; + unsigned int cpb_size_scale; + unsigned int cpb_size_du_scale; + unsigned int initial_cpb_removal_delay_length_minus1; + unsigned int au_cpb_removal_delay_length_minus1; + unsigned int dpb_output_delay_length_minus1; + }; + struct { + unsigned int fixed_pic_rate_general_flag[1]; + unsigned int fixed_pic_rate_within_cvs_flag[1]; + unsigned int elemental_duration_in_tc_minus1[1]; + unsigned int low_delay_hrd_flag[1]; + unsigned int cpb_cnt_minus1[1]; + struct nal_hevc_sub_layer_hrd_parameters nal_hrd[1]; + struct nal_hevc_sub_layer_hrd_parameters vcl_hrd[1]; + }; +}; + +/* + * struct nal_hevc_vui_parameters - VUI parameters + * + * C struct representation of the VUI parameters as defined by Rec. ITU-T + * H.265 (02/2018) E.2.1 VUI parameters syntax. + */ +struct nal_hevc_vui_parameters { + unsigned int aspect_ratio_info_present_flag; + struct { + unsigned int aspect_ratio_idc; + unsigned int sar_width; + unsigned int sar_height; + }; + unsigned int overscan_info_present_flag; + unsigned int overscan_appropriate_flag; + unsigned int video_signal_type_present_flag; + struct { + unsigned int video_format; + unsigned int video_full_range_flag; + unsigned int colour_description_present_flag; + struct { + unsigned int colour_primaries; + unsigned int transfer_characteristics; + unsigned int matrix_coeffs; + }; + }; + unsigned int chroma_loc_info_present_flag; + struct { + unsigned int chroma_sample_loc_type_top_field; + unsigned int chroma_sample_loc_type_bottom_field; + }; + unsigned int neutral_chroma_indication_flag; + unsigned int field_seq_flag; + unsigned int frame_field_info_present_flag; + unsigned int default_display_window_flag; + struct { + unsigned int def_disp_win_left_offset; + unsigned int def_disp_win_right_offset; + unsigned int def_disp_win_top_offset; + unsigned int def_disp_win_bottom_offset; + }; + unsigned int vui_timing_info_present_flag; + struct { + unsigned int vui_num_units_in_tick; + unsigned int vui_time_scale; + unsigned int vui_poc_proportional_to_timing_flag; + unsigned int vui_num_ticks_poc_diff_one_minus1; + unsigned int vui_hrd_parameters_present_flag; + struct nal_hevc_hrd_parameters nal_hrd_parameters; + }; + unsigned int bitstream_restriction_flag; + struct { + unsigned int tiles_fixed_structure_flag; + unsigned int motion_vectors_over_pic_boundaries_flag; + unsigned int restricted_ref_pic_lists_flag; + unsigned int min_spatial_segmentation_idc; + unsigned int max_bytes_per_pic_denom; + unsigned int max_bits_per_min_cu_denom; + unsigned int log2_max_mv_length_horizontal; + unsigned int log2_max_mv_length_vertical; + }; +}; + +/* + * struct nal_hevc_sps - Sequence parameter set + * + * C struct representation of the video parameter set NAL unit as defined by + * Rec. ITU-T H.265 (02/2018) 7.3.2.2 Sequence parameter set RBSP syntax + */ +struct nal_hevc_sps { + unsigned int video_parameter_set_id; + unsigned int max_sub_layers_minus1; + unsigned int temporal_id_nesting_flag; + struct nal_hevc_profile_tier_level profile_tier_level; + unsigned int seq_parameter_set_id; + unsigned int chroma_format_idc; + unsigned int separate_colour_plane_flag; + unsigned int pic_width_in_luma_samples; + unsigned int pic_height_in_luma_samples; + unsigned int conformance_window_flag; + struct { + unsigned int conf_win_left_offset; + unsigned int conf_win_right_offset; + unsigned int conf_win_top_offset; + unsigned int conf_win_bottom_offset; + }; + + unsigned int bit_depth_luma_minus8; + unsigned int bit_depth_chroma_minus8; + unsigned int log2_max_pic_order_cnt_lsb_minus4; + unsigned int sub_layer_ordering_info_present_flag; + struct { + unsigned int max_dec_pic_buffering_minus1[7]; + unsigned int max_num_reorder_pics[7]; + unsigned int max_latency_increase_plus1[7]; + }; + unsigned int log2_min_luma_coding_block_size_minus3; + unsigned int log2_diff_max_min_luma_coding_block_size; + unsigned int log2_min_luma_transform_block_size_minus2; + unsigned int log2_diff_max_min_luma_transform_block_size; + unsigned int max_transform_hierarchy_depth_inter; + unsigned int max_transform_hierarchy_depth_intra; + + unsigned int scaling_list_enabled_flag; + unsigned int scaling_list_data_present_flag; + unsigned int amp_enabled_flag; + unsigned int sample_adaptive_offset_enabled_flag; + unsigned int pcm_enabled_flag; + struct { + unsigned int pcm_sample_bit_depth_luma_minus1; + unsigned int pcm_sample_bit_depth_chroma_minus1; + unsigned int log2_min_pcm_luma_coding_block_size_minus3; + unsigned int log2_diff_max_min_pcm_luma_coding_block_size; + unsigned int pcm_loop_filter_disabled_flag; + }; + + unsigned int num_short_term_ref_pic_sets; + unsigned int long_term_ref_pics_present_flag; + unsigned int sps_temporal_mvp_enabled_flag; + unsigned int strong_intra_smoothing_enabled_flag; + unsigned int vui_parameters_present_flag; + struct nal_hevc_vui_parameters vui; + unsigned int extension_present_flag; + struct { + unsigned int sps_range_extension_flag; + unsigned int sps_multilayer_extension_flag; + unsigned int sps_3d_extension_flag; + unsigned int sps_scc_extension_flag; + unsigned int sps_extension_4bits; + }; +}; + +struct nal_hevc_pps { + unsigned int pps_pic_parameter_set_id; + unsigned int pps_seq_parameter_set_id; + unsigned int dependent_slice_segments_enabled_flag; + unsigned int output_flag_present_flag; + unsigned int num_extra_slice_header_bits; + unsigned int sign_data_hiding_enabled_flag; + unsigned int cabac_init_present_flag; + unsigned int num_ref_idx_l0_default_active_minus1; + unsigned int num_ref_idx_l1_default_active_minus1; + int init_qp_minus26; + unsigned int constrained_intra_pred_flag; + unsigned int transform_skip_enabled_flag; + unsigned int cu_qp_delta_enabled_flag; + unsigned int diff_cu_qp_delta_depth; + int pps_cb_qp_offset; + int pps_cr_qp_offset; + unsigned int pps_slice_chroma_qp_offsets_present_flag; + unsigned int weighted_pred_flag; + unsigned int weighted_bipred_flag; + unsigned int transquant_bypass_enabled_flag; + unsigned int tiles_enabled_flag; + unsigned int entropy_coding_sync_enabled_flag; + struct { + unsigned int num_tile_columns_minus1; + unsigned int num_tile_rows_minus1; + unsigned int uniform_spacing_flag; + struct { + unsigned int column_width_minus1[1]; + unsigned int row_height_minus1[1]; + }; + unsigned int loop_filter_across_tiles_enabled_flag; + }; + unsigned int pps_loop_filter_across_slices_enabled_flag; + unsigned int deblocking_filter_control_present_flag; + struct { + unsigned int deblocking_filter_override_enabled_flag; + unsigned int pps_deblocking_filter_disabled_flag; + struct { + int pps_beta_offset_div2; + int pps_tc_offset_div2; + }; + }; + unsigned int pps_scaling_list_data_present_flag; + unsigned int lists_modification_present_flag; + unsigned int log2_parallel_merge_level_minus2; + unsigned int slice_segment_header_extension_present_flag; + unsigned int pps_extension_present_flag; + struct { + unsigned int pps_range_extension_flag; + unsigned int pps_multilayer_extension_flag; + unsigned int pps_3d_extension_flag; + unsigned int pps_scc_extension_flag; + unsigned int pps_extension_4bits; + }; +}; + +/** + * nal_hevc_profile() - Get profile_idc for v4l2 hevc profile + * @profile: the profile as &enum v4l2_mpeg_video_hevc_profile + * + * Convert the &enum v4l2_mpeg_video_hevc_profile to profile_idc as specified + * in Rec. ITU-T H.265 (02/2018) A.3. + * + * Return: the profile_idc for the passed level + */ +static inline int nal_hevc_profile(enum v4l2_mpeg_video_hevc_profile profile) +{ + switch (profile) { + case V4L2_MPEG_VIDEO_HEVC_PROFILE_MAIN: + return 1; + case V4L2_MPEG_VIDEO_HEVC_PROFILE_MAIN_10: + return 2; + case V4L2_MPEG_VIDEO_HEVC_PROFILE_MAIN_STILL_PICTURE: + return 3; + default: + return -EINVAL; + } +} + +/** + * nal_hevc_tier() - Get tier_flag for v4l2 hevc tier + * @tier: the tier as &enum v4l2_mpeg_video_hevc_tier + * + * Convert the &enum v4l2_mpeg_video_hevc_tier to tier_flag as specified + * in Rec. ITU-T H.265 (02/2018) A.4.1. + * + * Return: the tier_flag for the passed tier + */ +static inline int nal_hevc_tier(enum v4l2_mpeg_video_hevc_tier tier) +{ + switch (tier) { + case V4L2_MPEG_VIDEO_HEVC_TIER_MAIN: + return 0; + case V4L2_MPEG_VIDEO_HEVC_TIER_HIGH: + return 1; + default: + return -EINVAL; + } +} + +/** + * nal_hevc_level() - Get level_idc for v4l2 hevc level + * @level: the level as &enum v4l2_mpeg_video_hevc_level + * + * Convert the &enum v4l2_mpeg_video_hevc_level to level_idc as specified in + * Rec. ITU-T H.265 (02/2018) A.4.1. + * + * Return: the level_idc for the passed level + */ +static inline int nal_hevc_level(enum v4l2_mpeg_video_hevc_level level) +{ + /* + * T-Rec-H.265 p. 280: general_level_idc and sub_layer_level_idc[ i ] + * shall be set equal to a value of 30 times the level number + * specified in Table A.6. + */ + int factor = 30 / 10; + + switch (level) { + case V4L2_MPEG_VIDEO_HEVC_LEVEL_1: + return factor * 10; + case V4L2_MPEG_VIDEO_HEVC_LEVEL_2: + return factor * 20; + case V4L2_MPEG_VIDEO_HEVC_LEVEL_2_1: + return factor * 21; + case V4L2_MPEG_VIDEO_HEVC_LEVEL_3: + return factor * 30; + case V4L2_MPEG_VIDEO_HEVC_LEVEL_3_1: + return factor * 31; + case V4L2_MPEG_VIDEO_HEVC_LEVEL_4: + return factor * 40; + case V4L2_MPEG_VIDEO_HEVC_LEVEL_4_1: + return factor * 41; + case V4L2_MPEG_VIDEO_HEVC_LEVEL_5: + return factor * 50; + case V4L2_MPEG_VIDEO_HEVC_LEVEL_5_1: + return factor * 51; + case V4L2_MPEG_VIDEO_HEVC_LEVEL_5_2: + return factor * 52; + case V4L2_MPEG_VIDEO_HEVC_LEVEL_6: + return factor * 60; + case V4L2_MPEG_VIDEO_HEVC_LEVEL_6_1: + return factor * 61; + case V4L2_MPEG_VIDEO_HEVC_LEVEL_6_2: + return factor * 62; + default: + return -EINVAL; + } +} + +static inline int nal_hevc_full_range(enum v4l2_quantization quantization) +{ + switch (quantization) { + case V4L2_QUANTIZATION_FULL_RANGE: + return 1; + case V4L2_QUANTIZATION_LIM_RANGE: + return 0; + default: + break; + } + + return 0; +} + +static inline int nal_hevc_color_primaries(enum v4l2_colorspace colorspace) +{ + switch (colorspace) { + case V4L2_COLORSPACE_SMPTE170M: + return 6; + case V4L2_COLORSPACE_SMPTE240M: + return 7; + case V4L2_COLORSPACE_REC709: + return 1; + case V4L2_COLORSPACE_470_SYSTEM_M: + return 4; + case V4L2_COLORSPACE_JPEG: + case V4L2_COLORSPACE_SRGB: + case V4L2_COLORSPACE_470_SYSTEM_BG: + return 5; + case V4L2_COLORSPACE_BT2020: + return 9; + case V4L2_COLORSPACE_DEFAULT: + case V4L2_COLORSPACE_OPRGB: + case V4L2_COLORSPACE_RAW: + case V4L2_COLORSPACE_DCI_P3: + default: + return 2; + } +} + +static inline int nal_hevc_transfer_characteristics(enum v4l2_colorspace colorspace, + enum v4l2_xfer_func xfer_func) +{ + if (xfer_func == V4L2_XFER_FUNC_DEFAULT) + xfer_func = V4L2_MAP_XFER_FUNC_DEFAULT(colorspace); + + switch (xfer_func) { + case V4L2_XFER_FUNC_709: + return 6; + case V4L2_XFER_FUNC_SMPTE2084: + return 16; + case V4L2_XFER_FUNC_SRGB: + case V4L2_XFER_FUNC_OPRGB: + case V4L2_XFER_FUNC_NONE: + case V4L2_XFER_FUNC_DCI_P3: + case V4L2_XFER_FUNC_SMPTE240M: + default: + return 2; + } +} + +static inline int nal_hevc_matrix_coeffs(enum v4l2_colorspace colorspace, + enum v4l2_ycbcr_encoding ycbcr_encoding) +{ + if (ycbcr_encoding == V4L2_YCBCR_ENC_DEFAULT) + ycbcr_encoding = V4L2_MAP_YCBCR_ENC_DEFAULT(colorspace); + + switch (ycbcr_encoding) { + case V4L2_YCBCR_ENC_601: + case V4L2_YCBCR_ENC_XV601: + return 5; + case V4L2_YCBCR_ENC_709: + case V4L2_YCBCR_ENC_XV709: + return 1; + case V4L2_YCBCR_ENC_BT2020: + return 9; + case V4L2_YCBCR_ENC_BT2020_CONST_LUM: + return 10; + case V4L2_YCBCR_ENC_SMPTE240M: + default: + return 2; + } +} + +ssize_t nal_hevc_write_vps(const struct device *dev, + void *dest, size_t n, struct nal_hevc_vps *vps); +ssize_t nal_hevc_read_vps(const struct device *dev, + struct nal_hevc_vps *vps, void *src, size_t n); + +ssize_t nal_hevc_write_sps(const struct device *dev, + void *dest, size_t n, struct nal_hevc_sps *sps); +ssize_t nal_hevc_read_sps(const struct device *dev, + struct nal_hevc_sps *sps, void *src, size_t n); + +ssize_t nal_hevc_write_pps(const struct device *dev, + void *dest, size_t n, struct nal_hevc_pps *pps); +ssize_t nal_hevc_read_pps(const struct device *dev, + struct nal_hevc_pps *pps, void *src, size_t n); + +ssize_t nal_hevc_write_filler(const struct device *dev, void *dest, size_t n); +ssize_t nal_hevc_read_filler(const struct device *dev, void *src, size_t n); + +#endif /* __NAL_HEVC_H__ */ |