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author | James Almer <jamrial@gmail.com> | 2023-06-17 12:37:15 -0300 |
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committer | James Almer <jamrial@gmail.com> | 2023-06-19 12:57:31 -0300 |
commit | 1e189fed7aba09e7b2198fd5460331ea9501d248 (patch) | |
tree | 2240fa8ef6a26916af2aa590c472ebabf4b51d24 /libavcodec/evc_parse.h | |
parent | 4afee83d359b47949f037ef63183847041ad5e3c (diff) | |
download | ffmpeg-1e189fed7aba09e7b2198fd5460331ea9501d248.tar.gz |
avcodec/evc_parse: split off Parameter Set parsing into its own file
Signed-off-by: James Almer <jamrial@gmail.com>
Diffstat (limited to 'libavcodec/evc_parse.h')
-rw-r--r-- | libavcodec/evc_parse.h | 198 |
1 files changed, 2 insertions, 196 deletions
diff --git a/libavcodec/evc_parse.h b/libavcodec/evc_parse.h index ee4b6c5708..b5462f5711 100644 --- a/libavcodec/evc_parse.h +++ b/libavcodec/evc_parse.h @@ -30,190 +30,7 @@ #include "libavutil/log.h" #include "libavutil/rational.h" #include "evc.h" - -#define EVC_MAX_QP_TABLE_SIZE 58 -#define NUM_CPB 32 - -// rpl structure -typedef struct RefPicListStruct { - int poc; - int tid; - int ref_pic_num; - int ref_pic_active_num; - int ref_pics[EVC_MAX_NUM_REF_PICS]; - char pic_type; - -} RefPicListStruct; - -// chromaQP table structure to be signalled in SPS -typedef struct ChromaQpTable { - int chroma_qp_table_present_flag; // u(1) - int same_qp_table_for_chroma; // u(1) - int global_offset_flag; // u(1) - int num_points_in_qp_table_minus1[2]; // ue(v) - int delta_qp_in_val_minus1[2][EVC_MAX_QP_TABLE_SIZE]; // u(6) - int delta_qp_out_val[2][EVC_MAX_QP_TABLE_SIZE]; // se(v) -} ChromaQpTable; - -// Hypothetical Reference Decoder (HRD) parameters, part of VUI -typedef struct HRDParameters { - int cpb_cnt_minus1; // ue(v) - int bit_rate_scale; // u(4) - int cpb_size_scale; // u(4) - int bit_rate_value_minus1[NUM_CPB]; // ue(v) - int cpb_size_value_minus1[NUM_CPB]; // ue(v) - int cbr_flag[NUM_CPB]; // u(1) - int initial_cpb_removal_delay_length_minus1; // u(5) - int cpb_removal_delay_length_minus1; // u(5) - int dpb_output_delay_length_minus1; // u(5) - int time_offset_length; // u(5) -} HRDParameters; - -// video usability information (VUI) part of SPS -typedef struct VUIParameters { - int aspect_ratio_info_present_flag; // u(1) - int aspect_ratio_idc; // u(8) - int sar_width; // u(16) - int sar_height; // u(16) - int overscan_info_present_flag; // u(1) - int overscan_appropriate_flag; // u(1) - int video_signal_type_present_flag; // u(1) - int video_format; // u(3) - int video_full_range_flag; // u(1) - int colour_description_present_flag; // u(1) - int colour_primaries; // u(8) - int transfer_characteristics; // u(8) - int matrix_coefficients; // u(8) - int chroma_loc_info_present_flag; // u(1) - int chroma_sample_loc_type_top_field; // ue(v) - int chroma_sample_loc_type_bottom_field; // ue(v) - int neutral_chroma_indication_flag; // u(1) - int field_seq_flag; // u(1) - int timing_info_present_flag; // u(1) - int num_units_in_tick; // u(32) - int time_scale; // u(32) - int fixed_pic_rate_flag; // u(1) - int nal_hrd_parameters_present_flag; // u(1) - int vcl_hrd_parameters_present_flag; // u(1) - int low_delay_hrd_flag; // u(1) - int pic_struct_present_flag; // u(1) - int bitstream_restriction_flag; // u(1) - int motion_vectors_over_pic_boundaries_flag; // u(1) - int max_bytes_per_pic_denom; // ue(v) - int max_bits_per_mb_denom; // ue(v) - int log2_max_mv_length_horizontal; // ue(v) - int log2_max_mv_length_vertical; // ue(v) - int num_reorder_pics; // ue(v) - int max_dec_pic_buffering; // ue(v) - - HRDParameters hrd_parameters; -} VUIParameters; - -// The sturcture reflects SPS RBSP(raw byte sequence payload) layout -// @see ISO_IEC_23094-1 section 7.3.2.1 -// -// The following descriptors specify the parsing process of each element -// u(n) - unsigned integer using n bits -// ue(v) - unsigned integer 0-th order Exp_Golomb-coded syntax element with the left bit first -typedef struct EVCParserSPS { - int sps_seq_parameter_set_id; // ue(v) - int profile_idc; // u(8) - int level_idc; // u(8) - int toolset_idc_h; // u(32) - int toolset_idc_l; // u(32) - int chroma_format_idc; // ue(v) - int pic_width_in_luma_samples; // ue(v) - int pic_height_in_luma_samples; // ue(v) - int bit_depth_luma_minus8; // ue(v) - int bit_depth_chroma_minus8; // ue(v) - - int sps_btt_flag; // u(1) - int log2_ctu_size_minus5; // ue(v) - int log2_min_cb_size_minus2; // ue(v) - int log2_diff_ctu_max_14_cb_size; // ue(v) - int log2_diff_ctu_max_tt_cb_size; // ue(v) - int log2_diff_min_cb_min_tt_cb_size_minus2; // ue(v) - - int sps_suco_flag; // u(1) - int log2_diff_ctu_size_max_suco_cb_size; // ue(v) - int log2_diff_max_suco_min_suco_cb_size; // ue(v) - - int sps_admvp_flag; // u(1) - int sps_affine_flag; // u(1) - int sps_amvr_flag; // u(1) - int sps_dmvr_flag; // u(1) - int sps_mmvd_flag; // u(1) - int sps_hmvp_flag; // u(1) - - int sps_eipd_flag; // u(1) - int sps_ibc_flag; // u(1) - int log2_max_ibc_cand_size_minus2; // ue(v) - - int sps_cm_init_flag; // u(1) - int sps_adcc_flag; // u(1) - - int sps_iqt_flag; // u(1) - int sps_ats_flag; // u(1) - - int sps_addb_flag; // u(1) - int sps_alf_flag; // u(1) - int sps_htdf_flag; // u(1) - int sps_rpl_flag; // u(1) - int sps_pocs_flag; // u(1) - int sps_dquant_flag; // u(1) - int sps_dra_flag; // u(1) - - int log2_max_pic_order_cnt_lsb_minus4; // ue(v) - int log2_sub_gop_length; // ue(v) - int log2_ref_pic_gap_length; // ue(v) - - int max_num_tid0_ref_pics; // ue(v) - - int sps_max_dec_pic_buffering_minus1; // ue(v) - int long_term_ref_pic_flag; // u(1) - int rpl1_same_as_rpl0_flag; // u(1) - int num_ref_pic_list_in_sps[2]; // ue(v) - struct RefPicListStruct rpls[2][EVC_MAX_NUM_RPLS]; - - int picture_cropping_flag; // u(1) - int picture_crop_left_offset; // ue(v) - int picture_crop_right_offset; // ue(v) - int picture_crop_top_offset; // ue(v) - int picture_crop_bottom_offset; // ue(v) - - struct ChromaQpTable chroma_qp_table_struct; - - int vui_parameters_present_flag; // u(1) - - struct VUIParameters vui_parameters; - -} EVCParserSPS; - -typedef struct EVCParserPPS { - int pps_pic_parameter_set_id; // ue(v) - int pps_seq_parameter_set_id; // ue(v) - int num_ref_idx_default_active_minus1[2]; // ue(v) - int additional_lt_poc_lsb_len; // ue(v) - int rpl1_idx_present_flag; // u(1) - int single_tile_in_pic_flag; // u(1) - int num_tile_columns_minus1; // ue(v) - int num_tile_rows_minus1; // ue(v) - int uniform_tile_spacing_flag; // u(1) - int tile_column_width_minus1[EVC_MAX_TILE_ROWS]; // ue(v) - int tile_row_height_minus1[EVC_MAX_TILE_COLUMNS]; // ue(v) - int loop_filter_across_tiles_enabled_flag; // u(1) - int tile_offset_len_minus1; // ue(v) - int tile_id_len_minus1; // ue(v) - int explicit_tile_id_flag; // u(1) - int tile_id_val[EVC_MAX_TILE_ROWS][EVC_MAX_TILE_COLUMNS]; // u(v) - int pic_dra_enabled_flag; // u(1) - int pic_dra_aps_id; // u(5) - int arbitrary_slice_present_flag; // u(1) - int constrained_intra_pred_flag; // u(1) - int cu_qp_delta_enabled_flag; // u(1) - int log2_cu_qp_delta_area_minus6; // ue(v) - -} EVCParserPPS; +#include "evc_ps.h" // The sturcture reflects Slice Header RBSP(raw byte sequence payload) layout // @see ISO_IEC_23094-1 section 7.3.2.6 @@ -265,10 +82,7 @@ typedef struct EVCParserPoc { } EVCParserPoc; typedef struct EVCParserContext { - //ParseContext pc; - EVCParserSPS *sps[EVC_MAX_SPS_COUNT]; - EVCParserPPS *pps[EVC_MAX_PPS_COUNT]; - + EVCParamSets ps; EVCParserPoc poc; int nuh_temporal_id; // the value of TemporalId (shall be the same for all VCL NAL units of an Access Unit) @@ -349,14 +163,6 @@ static inline uint32_t evc_read_nal_unit_length(const uint8_t *bits, int bits_si // nuh_temporal_id specifies a temporal identifier for the NAL unit int ff_evc_get_temporal_id(const uint8_t *bits, int bits_size, void *logctx); -// @see ISO_IEC_23094-1 (7.3.2.1 SPS RBSP syntax) -EVCParserSPS *ff_evc_parse_sps(EVCParserContext *ctx, const uint8_t *bs, int bs_size); - -// @see ISO_IEC_23094-1 (7.3.2.2 SPS RBSP syntax) -EVCParserPPS *ff_evc_parse_pps(EVCParserContext *ctx, const uint8_t *bs, int bs_size); - int ff_evc_parse_nal_unit(EVCParserContext *ctx, const uint8_t *buf, int buf_size, void *logctx); -void ff_evc_parse_free(EVCParserContext *ctx); - #endif /* AVCODEC_EVC_PARSE_H */ |