ref: d4c5ad493bebcb67aa3c6779b2ce7ffe20fd2018
dir: /include/dav1d/headers.h/
/*
* Copyright © 2018, VideoLAN and dav1d authors
* Copyright © 2018, Two Orioles, LLC
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef DAV1D_HEADERS_H
#define DAV1D_HEADERS_H
#include <stddef.h>
// Constants from Section 3. "Symbols and abbreviated terms"
#define DAV1D_MAX_CDEF_STRENGTHS 8
#define DAV1D_MAX_OPERATING_POINTS 32
#define DAV1D_MAX_TILE_COLS 64
#define DAV1D_MAX_TILE_ROWS 64
#define DAV1D_MAX_SEGMENTS 8
#define DAV1D_NUM_REF_FRAMES 8
#define DAV1D_PRIMARY_REF_NONE 7
#define DAV1D_REFS_PER_FRAME 7
#define DAV1D_TOTAL_REFS_PER_FRAME (DAV1D_REFS_PER_FRAME + 1)
enum Dav1dObuType {
DAV1D_OBU_SEQ_HDR = 1,
DAV1D_OBU_TD = 2,
DAV1D_OBU_FRAME_HDR = 3,
DAV1D_OBU_TILE_GRP = 4,
DAV1D_OBU_METADATA = 5,
DAV1D_OBU_FRAME = 6,
DAV1D_OBU_REDUNDANT_FRAME_HDR = 7,
DAV1D_OBU_PADDING = 15,
};
enum Dav1dTxfmMode {
DAV1D_TX_4X4_ONLY,
DAV1D_TX_LARGEST,
DAV1D_TX_SWITCHABLE,
DAV1D_N_TX_MODES,
};
enum Dav1dFilterMode {
DAV1D_FILTER_8TAP_REGULAR,
DAV1D_FILTER_8TAP_SMOOTH,
DAV1D_FILTER_8TAP_SHARP,
DAV1D_N_SWITCHABLE_FILTERS,
DAV1D_FILTER_BILINEAR = DAV1D_N_SWITCHABLE_FILTERS,
DAV1D_N_FILTERS,
DAV1D_FILTER_SWITCHABLE = DAV1D_N_FILTERS,
};
enum Dav1dAdaptiveBoolean {
DAV1D_OFF = 0,
DAV1D_ON = 1,
DAV1D_ADAPTIVE = 2,
};
enum Dav1dRestorationType {
DAV1D_RESTORATION_NONE,
DAV1D_RESTORATION_SWITCHABLE,
DAV1D_RESTORATION_WIENER,
DAV1D_RESTORATION_SGRPROJ,
};
enum Dav1dWarpedMotionType {
DAV1D_WM_TYPE_IDENTITY,
DAV1D_WM_TYPE_TRANSLATION,
DAV1D_WM_TYPE_ROT_ZOOM,
DAV1D_WM_TYPE_AFFINE,
};
typedef struct Dav1dWarpedMotionParams {
enum Dav1dWarpedMotionType type;
int32_t matrix[6];
union {
struct {
int16_t alpha, beta, gamma, delta;
};
int16_t abcd[4];
};
} Dav1dWarpedMotionParams;
enum Dav1dPixelLayout {
DAV1D_PIXEL_LAYOUT_I400, ///< monochrome
DAV1D_PIXEL_LAYOUT_I420, ///< 4:2:0 planar
DAV1D_PIXEL_LAYOUT_I422, ///< 4:2:2 planar
DAV1D_PIXEL_LAYOUT_I444, ///< 4:4:4 planar
};
enum Dav1dFrameType {
DAV1D_FRAME_TYPE_KEY = 0, ///< Key Intra frame
DAV1D_FRAME_TYPE_INTER = 1, ///< Inter frame
DAV1D_FRAME_TYPE_INTRA = 2, ///< Non key Intra frame
DAV1D_FRAME_TYPE_SWITCH = 3, ///< Switch Inter frame
};
enum Dav1dColorPrimaries {
DAV1D_COLOR_PRI_BT709 = 1,
DAV1D_COLOR_PRI_UNKNOWN = 2,
DAV1D_COLOR_PRI_BT470M = 4,
DAV1D_COLOR_PRI_BT470BG = 5,
DAV1D_COLOR_PRI_BT601 = 6,
DAV1D_COLOR_PRI_SMPTE240 = 7,
DAV1D_COLOR_PRI_FILM = 8,
DAV1D_COLOR_PRI_BT2020 = 9,
DAV1D_COLOR_PRI_XYZ = 10,
DAV1D_COLOR_PRI_SMPTE431 = 11,
DAV1D_COLOR_PRI_SMPTE432 = 12,
DAV1D_COLOR_PRI_EBU3213 = 22,
};
enum Dav1dTransferCharacteristics {
DAV1D_TRC_BT709 = 1,
DAV1D_TRC_UNKNOWN = 2,
DAV1D_TRC_BT470M = 4,
DAV1D_TRC_BT470BG = 5,
DAV1D_TRC_BT601 = 6,
DAV1D_TRC_SMPTE240 = 7,
DAV1D_TRC_LINEAR = 8,
DAV1D_TRC_LOG100 = 9, ///< logarithmic (100:1 range)
DAV1D_TRC_LOG100_SQRT10 = 10, ///< lograithmic (100*sqrt(10):1 range)
DAV1D_TRC_IEC61966 = 11,
DAV1D_TRC_BT1361 = 12,
DAV1D_TRC_SRGB = 13,
DAV1D_TRC_BT2020_10BIT = 14,
DAV1D_TRC_BT2020_12BIT = 15,
DAV1D_TRC_SMPTE2084 = 16, ///< PQ
DAV1D_TRC_SMPTE428 = 17,
DAV1D_TRC_HLG = 18, ///< hybrid log/gamma (BT.2100 / ARIB STD-B67)
};
enum Dav1dMatrixCoefficients {
DAV1D_MC_IDENTITY = 0,
DAV1D_MC_BT709 = 1,
DAV1D_MC_UNKNOWN = 2,
DAV1D_MC_FCC = 4,
DAV1D_MC_BT470BG = 5,
DAV1D_MC_BT601 = 6,
DAV1D_MC_SMPTE240 = 7,
DAV1D_MC_SMPTE_YCGCO = 8,
DAV1D_MC_BT2020_NCL = 9,
DAV1D_MC_BT2020_CL = 10,
DAV1D_MC_SMPTE2085 = 11,
DAV1D_MC_CHROMAT_NCL = 12, ///< Chromaticity-derived
DAV1D_MC_CHROMAT_CL = 13,
DAV1D_MC_ICTCP = 14,
};
enum Dav1dChromaSamplePosition {
DAV1D_CHR_UNKNOWN = 0,
DAV1D_CHR_VERTICAL = 1, ///< Horizontally co-located with luma(0, 0)
///< sample, between two vertical samples
DAV1D_CHR_COLOCATED = 2, ///< Co-located with luma(0, 0) sample
};
typedef struct Dav1dContentLightLevel {
int max_content_light_level;
int max_frame_average_light_level;
} Dav1dContentLightLevel;
typedef struct Dav1dMasteringDisplay {
///< 0.16 fixed point
uint16_t primaries[3][2];
///< 0.16 fixed point
uint16_t white_point[2];
///< 24.8 fixed point
uint32_t max_luminance;
///< 18.14 fixed point
uint32_t min_luminance;
} Dav1dMasteringDisplay;
typedef struct Dav1dITUTT35 {
uint8_t country_code;
uint8_t country_code_extension_byte;
size_t payload_size;
uint8_t *payload;
} Dav1dITUTT35;
typedef struct Dav1dSequenceHeader {
/**
* Stream profile, 0 for 8-10 bits/component 4:2:0 or monochrome;
* 1 for 8-10 bits/component 4:4:4; 2 for 4:2:2 at any bits/component,
* or 12 bits/component at any chroma subsampling.
*/
int profile;
/**
* Maximum dimensions for this stream. In non-scalable streams, these
* are often the actual dimensions of the stream, although that is not
* a normative requirement.
*/
int max_width, max_height;
enum Dav1dPixelLayout layout; ///< format of the picture
enum Dav1dColorPrimaries pri; ///< color primaries (av1)
enum Dav1dTransferCharacteristics trc; ///< transfer characteristics (av1)
enum Dav1dMatrixCoefficients mtrx; ///< matrix coefficients (av1)
enum Dav1dChromaSamplePosition chr; ///< chroma sample position (av1)
/**
* 0, 1 and 2 mean 8, 10 or 12 bits/component, respectively. This is not
* exactly the same as 'hbd' from the spec; the spec's hbd distinguishes
* between 8 (0) and 10-12 (1) bits/component, and another element
* (twelve_bit) to distinguish between 10 and 12 bits/component. To get
* the spec's hbd, use !!our_hbd, and to get twelve_bit, use hbd == 2.
*/
int hbd;
/**
* Pixel data uses JPEG pixel range ([0,255] for 8bits) instead of
* MPEG pixel range ([16,235] for 8bits luma, [16,240] for 8bits chroma).
*/
int color_range;
int num_operating_points;
struct Dav1dSequenceHeaderOperatingPoint {
int major_level, minor_level;
int initial_display_delay;
int idc;
int tier;
int decoder_model_param_present;
int display_model_param_present;
} operating_points[DAV1D_MAX_OPERATING_POINTS];
int still_picture;
int reduced_still_picture_header;
int timing_info_present;
int num_units_in_tick;
int time_scale;
int equal_picture_interval;
unsigned num_ticks_per_picture;
int decoder_model_info_present;
int encoder_decoder_buffer_delay_length;
int num_units_in_decoding_tick;
int buffer_removal_delay_length;
int frame_presentation_delay_length;
int display_model_info_present;
int width_n_bits, height_n_bits;
int frame_id_numbers_present;
int delta_frame_id_n_bits;
int frame_id_n_bits;
int sb128;
int filter_intra;
int intra_edge_filter;
int inter_intra;
int masked_compound;
int warped_motion;
int dual_filter;
int order_hint;
int jnt_comp;
int ref_frame_mvs;
enum Dav1dAdaptiveBoolean screen_content_tools;
enum Dav1dAdaptiveBoolean force_integer_mv;
int order_hint_n_bits;
int super_res;
int cdef;
int restoration;
int ss_hor, ss_ver, monochrome;
int color_description_present;
int separate_uv_delta_q;
int film_grain_present;
// Dav1dSequenceHeaders of the same sequence are required to be
// bit-identical until this offset. See 7.5 "Ordering of OBUs":
// Within a particular coded video sequence, the contents of
// sequence_header_obu must be bit-identical each time the
// sequence header appears except for the contents of
// operating_parameters_info.
struct Dav1dSequenceHeaderOperatingParameterInfo {
int decoder_buffer_delay;
int encoder_buffer_delay;
int low_delay_mode;
} operating_parameter_info[DAV1D_MAX_OPERATING_POINTS];
} Dav1dSequenceHeader;
typedef struct Dav1dSegmentationData {
int delta_q;
int delta_lf_y_v, delta_lf_y_h, delta_lf_u, delta_lf_v;
int ref;
int skip;
int globalmv;
} Dav1dSegmentationData;
typedef struct Dav1dSegmentationDataSet {
Dav1dSegmentationData d[DAV1D_MAX_SEGMENTS];
int preskip;
int last_active_segid;
} Dav1dSegmentationDataSet;
typedef struct Dav1dLoopfilterModeRefDeltas {
int mode_delta[2 /* is_zeromv */];
int ref_delta[DAV1D_TOTAL_REFS_PER_FRAME];
} Dav1dLoopfilterModeRefDeltas;
typedef struct Dav1dFilmGrainData {
unsigned seed;
int num_y_points;
uint8_t y_points[14][2 /* value, scaling */];
int chroma_scaling_from_luma;
int num_uv_points[2];
uint8_t uv_points[2][10][2 /* value, scaling */];
int scaling_shift;
int ar_coeff_lag;
int8_t ar_coeffs_y[24];
int8_t ar_coeffs_uv[2][25 + 3 /* padding for alignment purposes */];
uint64_t ar_coeff_shift;
int grain_scale_shift;
int uv_mult[2];
int uv_luma_mult[2];
int uv_offset[2];
int overlap_flag;
int clip_to_restricted_range;
} Dav1dFilmGrainData;
typedef struct Dav1dFrameHeader {
struct {
Dav1dFilmGrainData data;
int present, update;
} film_grain; ///< film grain parameters
enum Dav1dFrameType frame_type; ///< type of the picture
int width[2 /* { coded_width, superresolution_upscaled_width } */], height;
int frame_offset; ///< frame number
int temporal_id, spatial_id; ///< spatial and temporal id of the frame for SVC
int show_existing_frame;
int existing_frame_idx;
int frame_id;
int frame_presentation_delay;
int show_frame;
int showable_frame;
int error_resilient_mode;
int disable_cdf_update;
int allow_screen_content_tools;
int force_integer_mv;
int frame_size_override;
int primary_ref_frame;
int buffer_removal_time_present;
struct Dav1dFrameHeaderOperatingPoint {
int buffer_removal_time;
} operating_points[DAV1D_MAX_OPERATING_POINTS];
int refresh_frame_flags;
int render_width, render_height;
struct {
int width_scale_denominator;
int enabled;
} super_res;
int have_render_size;
int allow_intrabc;
int frame_ref_short_signaling;
int refidx[DAV1D_REFS_PER_FRAME];
int hp;
enum Dav1dFilterMode subpel_filter_mode;
int switchable_motion_mode;
int use_ref_frame_mvs;
int refresh_context;
struct {
int uniform;
unsigned n_bytes;
int min_log2_cols, max_log2_cols, log2_cols, cols;
int min_log2_rows, max_log2_rows, log2_rows, rows;
uint16_t col_start_sb[DAV1D_MAX_TILE_COLS + 1];
uint16_t row_start_sb[DAV1D_MAX_TILE_ROWS + 1];
int update;
} tiling;
struct {
int yac;
int ydc_delta;
int udc_delta, uac_delta, vdc_delta, vac_delta;
int qm, qm_y, qm_u, qm_v;
} quant;
struct {
int enabled, update_map, temporal, update_data;
Dav1dSegmentationDataSet seg_data;
int lossless[DAV1D_MAX_SEGMENTS], qidx[DAV1D_MAX_SEGMENTS];
} segmentation;
struct {
struct {
int present;
int res_log2;
} q;
struct {
int present;
int res_log2;
int multi;
} lf;
} delta;
int all_lossless;
struct {
int level_y[2 /* dir */];
int level_u, level_v;
int mode_ref_delta_enabled;
int mode_ref_delta_update;
Dav1dLoopfilterModeRefDeltas mode_ref_deltas;
int sharpness;
} loopfilter;
struct {
int damping;
int n_bits;
int y_strength[DAV1D_MAX_CDEF_STRENGTHS];
int uv_strength[DAV1D_MAX_CDEF_STRENGTHS];
} cdef;
struct {
enum Dav1dRestorationType type[3 /* plane */];
int unit_size[2 /* y, uv */];
} restoration;
enum Dav1dTxfmMode txfm_mode;
int switchable_comp_refs;
int skip_mode_allowed, skip_mode_enabled, skip_mode_refs[2];
int warp_motion;
int reduced_txtp_set;
Dav1dWarpedMotionParams gmv[DAV1D_REFS_PER_FRAME];
} Dav1dFrameHeader;
#endif /* DAV1D_HEADERS_H */