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Add pps structure and parsing function (#3875)

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alex 2024-09-10 10:59:44 +08:00 committed by GitHub
parent e322db0a04
commit 7c5ba5a099
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2 changed files with 89 additions and 1 deletions
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33
ext-codec/SPSParser.c
View File

@ -2284,3 +2284,36 @@ void h265GeFramerate(T_HEVCVPS *ptVps, T_HEVCSPS *ptSps,float *pfFramerate)
}
}
int h265ParsePps(T_GetBitContext *ptGetBitContext, T_HEVC_PPS *ptPps)
{
int iRet = 0;
ptPps->pps_pic_parameter_set_id = parseUe(ptGetBitContext);
ptPps->pps_seq_parameter_set_id = parseUe(ptGetBitContext);
ptPps->dependent_slice_segments_enabled_flag = getOneBit(ptGetBitContext);
ptPps->output_flag_present_flag = getOneBit(ptGetBitContext);
ptPps->num_extra_slice_header_bits = getBits(ptGetBitContext, 3);
ptPps->sign_data_hiding_enabled_flag = getOneBit(ptGetBitContext);
ptPps->cabac_init_present_flag = getOneBit(ptGetBitContext);
ptPps->num_ref_idx_l0_default_active_minus1 = parseUe(ptGetBitContext);
ptPps->num_ref_idx_l1_default_active_minus1 = parseUe(ptGetBitContext);
ptPps->init_qp_minus26 = parseSe(ptGetBitContext);
ptPps->constrained_intra_pred_flag = getOneBit(ptGetBitContext);
ptPps->transform_skip_enabled_flag = getOneBit(ptGetBitContext);
ptPps->cu_qp_delta_enabled_flag = getOneBit(ptGetBitContext);
if (ptPps->cu_qp_delta_enabled_flag) {
ptPps->diff_cu_qp_delta_depth = parseUe(ptGetBitContext);
}
ptPps->pps_cb_qp_offset = parseSe(ptGetBitContext);
ptPps->pps_cr_qp_offset = parseSe(ptGetBitContext);
ptPps->pps_slice_chroma_qp_offsets_present_flag = getOneBit(ptGetBitContext);
ptPps->weighted_pred_flag = getOneBit(ptGetBitContext);
ptPps->weighted_bipred_flag = getOneBit(ptGetBitContext);
ptPps->transquant_bypass_enabled_flag = getOneBit(ptGetBitContext);
ptPps->tiles_enabled_flag = getOneBit(ptGetBitContext);
ptPps->entropy_coding_sync_enabled_flag = getOneBit(ptGetBitContext);
return iRet;
}

57
ext-codec/SPSParser.h
View File

@ -437,6 +437,61 @@ typedef struct T_HEVCSPS {
int iVuiPresent;
}T_HEVCSPS;
typedef struct {
int pps_pic_parameter_set_id;
int pps_seq_parameter_set_id;
int dependent_slice_segments_enabled_flag;
int output_flag_present_flag;
int num_extra_slice_header_bits;
int sign_data_hiding_enabled_flag;
int cabac_init_present_flag;
int num_ref_idx_l0_default_active_minus1;
int num_ref_idx_l1_default_active_minus1;
int init_qp_minus26;
int constrained_intra_pred_flag;
int transform_skip_enabled_flag;
int cu_qp_delta_enabled_flag;
int diff_cu_qp_delta_depth;
int pps_cb_qp_offset;
int pps_cr_qp_offset;
int pps_slice_chroma_qp_offsets_present_flag;
int weighted_pred_flag;
int weighted_bipred_flag;
int transquant_bypass_enabled_flag;
int tiles_enabled_flag;
int entropy_coding_sync_enabled_flag;
int uniform_spacing_flag;
int loop_filter_across_tiles_enabled_flag;
int pps_loop_filter_across_slices_enabled_flag;
int deblocking_filter_control_present_flag;
int deblocking_filter_override_enabled_flag;
int pps_deblocking_filter_disabled_flag;
int pps_beta_offset_div2;
int pps_tc_offset_div2;
int pps_scaling_list_data_present_flag;
int lists_modification_present_flag;
int log2_parallel_merge_level_minus2;
int slice_segment_header_extension_present_flag;
int pps_extension_present_flag;
int pps_range_extension_flag;
int pps_multilayer_extension_flag;
int pps_3d_extension_flag;
int pps_scc_extension_flag;
int pps_extension_4bits;
// PPS range extension fields
int log2_max_transform_skip_block_size_minus2;
int cross_component_prediction_enabled_flag;
int chroma_qp_offset_list_enabled_flag;
int diff_cu_chroma_qp_offset_depth;
int chroma_qp_offset_list_len_minus1;
int cb_qp_offset_list[6];
int cr_qp_offset_list[6];
int log2_sao_offset_scale_luma;
int log2_sao_offset_scale_chroma;
// 可以根据需要添加更多字段
} T_HEVC_PPS;
typedef struct T_GetBitContext{
uint8_t *pu8Buf; // buf
@ -446,7 +501,7 @@ typedef struct T_GetBitContext{
int iCurBitPos; // current bit position
}T_GetBitContext;
int h265ParsePps(T_GetBitContext *ptGetBitContext, T_HEVC_PPS *ptPps);
int h264DecSeqParameterSet(void *pvBuf, T_SPS *ptSps);
int h265DecSeqParameterSet( void *pvBufSrc, T_HEVCSPS *ptSps );
int h265DecVideoParameterSet( void *pvBufSrc, T_HEVCVPS *ptVps );