FFmpeg: libavcodec/hevc_ps.h Source File
Go to the documentation of this file. 1 /*
2 * HEVC parameter set parsing
3 *
4 * This file is part of FFmpeg.
5 *
6 * FFmpeg is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
10 *
11 * FFmpeg is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with FFmpeg; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19 */
20
21 #ifndef AVCODEC_HEVC_PS_H
22 #define AVCODEC_HEVC_PS_H
23
24 #include <stdint.h>
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134 /* This is a little wasteful, since sizeID 0 only needs 8 coeffs,
135 * and size ID 3 only has 2 arrays, not 6. */
136 uint8_t
sl[4][6][64];
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158 struct {
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182 struct {
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213 ///< coded frame dimension in various units
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237 unsigned int sps_id;
///< seq_parameter_set_id
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296 // Inferred parameters
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319 /* currently active parameter sets */
324
325 /**
326 * Parse the SPS from the bitstream into the provided HEVCSPS struct.
327 *
328 * @param sps_id the SPS id will be written here
329 * @param apply_defdispwin if set 1, the default display window from the VUI
330 * will be applied to the video dimensions
331 * @param vps_list if non-NULL, this function will validate that the SPS refers
332 * to an existing VPS
333 */
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350 uint8_t *buf, int buf_size);
351
352 /**
353 * Compute POC of the current frame and return it.
354 */
356
357 #endif /* AVCODEC_HEVC_PS_H */
uint8_t vps_poc_proportional_to_timing_flag
uint8_t sps_strong_intra_smoothing_enable_flag
int ff_hevc_decode_nal_vps(GetBitContext *gb, AVCodecContext *avctx, HEVCParamSets *ps)
uint8_t tiles_enabled_flag
unsigned int log2_min_cb_size
uint8_t used_by_curr_pic_lt_sps_flag[HEVC_MAX_LONG_TERM_REF_PICS]
AVPixelFormat
Pixel format.
uint8_t pps_range_extensions_flag
uint8_t max_10bit_constraint_flag
uint8_t long_term_ref_pics_present_flag
uint16_t lt_ref_pic_poc_lsb_sps[HEVC_MAX_LONG_TERM_REF_PICS]
ShortTermRPS st_rps[HEVC_MAX_SHORT_TERM_REF_PIC_SETS]
unsigned int bottom_offset
unsigned int * column_width
ColumnWidth.
PTLCommon sub_layer_ptl[HEVC_MAX_SUB_LAYERS]
uint8_t loop_filter_disable_flag
uint8_t intra_constraint_flag
uint8_t slice_header_extension_present_flag
struct HEVCSPS::@81 temporal_layer[HEVC_MAX_SUB_LAYERS]
uint8_t output_flag_present_flag
uint32_t vps_num_units_in_tick
unsigned int log2_max_pcm_cb_size
uint8_t lists_modification_present_flag
uint8_t cu_qp_delta_enabled_flag
int tiles_fixed_structure_flag
int vui_num_ticks_poc_diff_one_minus1
int persistent_rice_adaptation_enabled_flag
uint8_t temporal_id_nesting_flag
int explicit_rdpcm_enabled_flag
int ff_hevc_decode_nal_pps(GetBitContext *gb, AVCodecContext *avctx, HEVCParamSets *ps)
int bitstream_restriction_flag
int max_dec_pic_buffering
uint8_t deblocking_filter_control_present_flag
uint16_t num_tile_columns
num_tile_columns_minus1 + 1
int intra_smoothing_disabled_flag
uint8_t profile_compatibility_flag[32]
int * min_tb_addr_zs_tab
MinTbAddrZS.
uint8_t separate_colour_plane_flag
uint8_t progressive_source_flag
unsigned int log2_diff_max_min_coding_block_size
void ff_hevc_ps_uninit(HEVCParamSets *ps)
uint8_t interlaced_source_flag
uint8_t max_8bit_constraint_flag
uint8_t one_picture_only_constraint_flag
int max_transform_hierarchy_depth_intra
uint8_t weighted_pred_flag
unsigned int log2_min_pcm_cb_size
unsigned int log2_max_poc_lsb
int transform_skip_rotation_enabled_flag
uint8_t loop_filter_across_tiles_enabled_flag
int restricted_ref_pic_lists_flag
uint8_t frame_only_constraint_flag
uint8_t max_monochrome_constraint_flag
unsigned int * row_bd
RowBd.
int num_extra_slice_header_bits
uint8_t sub_layer_level_present_flag[HEVC_MAX_SUB_LAYERS]
unsigned int * col_bd
ColBd.
int diff_cu_qp_delta_depth
unsigned int vps_max_latency_increase[HEVC_MAX_SUB_LAYERS]
int ff_hevc_decode_nal_sps(GetBitContext *gb, AVCodecContext *avctx, HEVCParamSets *ps, int apply_defdispwin)
uint8_t sps_temporal_mvp_enabled_flag
int motion_vectors_over_pic_boundaries_flag
uint8_t non_packed_constraint_flag
int * ctb_addr_ts_to_rs
CtbAddrTSToRS.
uint8_t deblocking_filter_override_enabled_flag
uint8_t log2_sao_offset_scale_luma
int vps_num_hrd_parameters
uint8_t num_long_term_ref_pics_sps
int frame_field_info_present_flag
uint8_t constrained_intra_pred_flag
int vui_timing_info_present_flag
int8_t cb_qp_offset_list[6]
uint8_t dependent_slice_segments_enabled_flag
int log2_max_mv_length_horizontal
int vps_num_ticks_poc_diff_one
vps_num_ticks_poc_diff_one_minus1 + 1
static int FUNC() vps(CodedBitstreamContext *ctx, RWContext *rw, H265RawVPS *current)
uint8_t sub_layer_profile_present_flag[HEVC_MAX_SUB_LAYERS]
int ff_hevc_decode_short_term_rps(GetBitContext *gb, AVCodecContext *avctx, ShortTermRPS *rps, const HEVCSPS *sps, int is_slice_header)
int max_bytes_per_pic_denom
int beta_offset
beta_offset_div2 * 2
int high_precision_offsets_enabled_flag
uint8_t cross_component_prediction_enabled_flag
int ff_hevc_encode_nal_vps(HEVCVPS *vps, unsigned int id, uint8_t *buf, int buf_size)
uint8_t entropy_coding_sync_enabled_flag
int sps_range_extension_flag
unsigned int * row_height
RowHeight.
unsigned int log2_max_trafo_size
int vui_poc_proportional_to_timing_flag
uint32_t vui_num_units_in_tick
int max_transform_hierarchy_depth_inter
int max_bits_per_min_cu_denom
uint8_t chroma_qp_offset_list_len_minus1
uint8_t seq_loop_filter_across_slices_enabled_flag
uint8_t cabac_init_present_flag
AVBufferRef * pps_list[HEVC_MAX_PPS_COUNT]
int log2_max_mv_length_vertical
int cabac_bypass_alignment_enabled_flag
coded frame dimension in various units
unsigned int vps_max_dec_pic_buffering[HEVC_MAX_SUB_LAYERS]
unsigned int log2_min_pu_size
int * tile_pos_rs
TilePosRS.
@ HEVC_MAX_LONG_TERM_REF_PICS
unsigned int log2_ctb_size
int log2_parallel_merge_level
log2_parallel_merge_level_minus2 + 2
unsigned int num_negative_pics
uint8_t max_422chroma_constraint_flag
int default_display_window_flag
int transform_skip_context_enabled_flag
int implicit_rdpcm_enabled_flag
int neutra_chroma_indication_flag
int rps_idx_num_delta_pocs
int vps_sub_layer_ordering_info_present_flag
uint8_t max_12bit_constraint_flag
uint8_t max_420chroma_constraint_flag
uint8_t lower_bit_rate_constraint_flag
uint8_t uniform_spacing_flag
static int FUNC() sps(CodedBitstreamContext *ctx, RWContext *rw, H264RawSPS *current)
int8_t cr_qp_offset_list[6]
main external API structure.
uint8_t scaling_list_data_present_flag
int * min_tb_addr_zs
MinTbAddrZS.
uint8_t vps_temporal_id_nesting_flag
unsigned int log2_min_tb_size
int ff_hevc_compute_poc(const HEVCSPS *sps, int pocTid0, int poc_lsb, int nal_unit_type)
Compute POC of the current frame and return it.
int vps_max_sub_layers
vps_max_temporal_layers_minus1 + 1
uint8_t sign_data_hiding_flag
AVBufferRef * sps_list[HEVC_MAX_SPS_COUNT]
int ff_hevc_parse_sps(HEVCSPS *sps, GetBitContext *gb, unsigned int *sps_id, int apply_defdispwin, AVBufferRef **vps_list, AVCodecContext *avctx)
Parse the SPS from the bitstream into the provided HEVCSPS struct.
uint8_t log2_max_transform_skip_block_size
uint8_t pic_slice_level_chroma_qp_offsets_present_flag
unsigned int right_offset
uint8_t weighted_bipred_flag
uint8_t vps_timing_info_present_flag
int vui_hrd_parameters_present_flag
int min_spatial_segmentation_idc
uint8_t log2_sao_offset_scale_chroma
int num_ref_idx_l1_default_active
num_ref_idx_l1_default_active_minus1 + 1
A reference to a data buffer.
int extended_precision_processing_flag
int num_ref_idx_l0_default_active
num_ref_idx_l0_default_active_minus1 + 1
unsigned int sps_id
seq_parameter_set_id
uint8_t max_14bit_constraint_flag
uint8_t diff_cu_chroma_qp_offset_depth
uint8_t transquant_bypass_enable_flag
@ HEVC_MAX_SHORT_TERM_REF_PIC_SETS
int vps_num_layer_sets
vps_num_layer_sets_minus1 + 1
uint8_t chroma_qp_offset_list_enabled_flag
unsigned int vps_num_reorder_pics[HEVC_MAX_SUB_LAYERS]
uint16_t num_tile_rows
num_tile_rows_minus1 + 1
enum AVPixelFormat pix_fmt
AVBufferRef * vps_list[HEVC_MAX_VPS_COUNT]
uint8_t scaling_list_enable_flag
uint8_t transform_skip_enabled_flag
int tc_offset
tc_offset_div2 * 2
int * ctb_addr_rs_to_ts
CtbAddrRSToTS.
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