/*************************************************************************************** ***************************************************************************************/ #ifndef _sps_pps_H_ #define _sps_pps_H_ #if defined (__cplusplus) extern "C" { #endif typedef struct mpeg_header { unsigned char start_code_prefix[5]; }mpeg_header_t; //4 /*** * Sequence parameter set * ¿É²Î¿¼H264±ê×¼µÚ7½ÚºÍ¸½Â¼D E */ #define Extended_SAR 255 typedef struct vui_parameters{ int aspect_ratio_info_present_flag; //0 u(1) int aspect_ratio_idc; //0 u(8) int sar_width; //0 u(16) int sar_height; //0 u(16) int overscan_info_present_flag; //0 u(1) int overscan_appropriate_flag; //0 u(1) int video_signal_type_present_flag; //0 u(1) int video_format; //0 u(3) int video_full_range_flag; //0 u(1) int colour_description_present_flag; //0 u(1) int colour_primaries; //0 u(8) int transfer_characteristics; //0 u(8) int matrix_coefficients; //0 u(8) int chroma_loc_info_present_flag; //0 u(1) int chroma_sample_loc_type_top_field; //0 ue(v) int chroma_sample_loc_type_bottom_field; //0 ue(v) int timing_info_present_flag; //0 u(1) uint32_t num_units_in_tick; //0 u(32) uint32_t time_scale; //0 u(32) int fixed_frame_rate_flag; //0 u(1) int nal_hrd_parameters_present_flag; //0 u(1) int cpb_cnt_minus1; //0 ue(v) int bit_rate_scale; //0 u(4) int cpb_size_scale; //0 u(4) int bit_rate_value_minus1[16]; //0 ue(v) int cpb_size_value_minus1[16]; //0 ue(v) int cbr_flag[16]; //0 u(1) int initial_cpb_removal_delay_length_minus1; //0 u(5) int cpb_removal_delay_length_minus1; //0 u(5) int dpb_output_delay_length_minus1; //0 u(5) int time_offset_length; //0 u(5) int vcl_hrd_parameters_present_flag; //0 u(1) int low_delay_hrd_flag; //0 u(1) int pic_struct_present_flag; //0 u(1) int bitstream_restriction_flag; //0 u(1) int motion_vectors_over_pic_boundaries_flag; //0 ue(v) int max_bytes_per_pic_denom; //0 ue(v) int max_bits_per_mb_denom; //0 ue(v) int log2_max_mv_length_horizontal; //0 ue(v) int log2_max_mv_length_vertical; //0 ue(v) int num_reorder_frames; //0 ue(v) int max_dec_frame_buffering; //0 ue(v) }vui_parameters_t; typedef struct SPS{ int profile_idc; int constraint_set0_flag; int constraint_set1_flag; int constraint_set2_flag; int constraint_set3_flag; int reserved_zero_4bits; int level_idc; int seq_parameter_set_id; //ue(v) int chroma_format_idc; //ue(v) int separate_colour_plane_flag; //u(1) int bit_depth_luma_minus8; //0 ue(v) int bit_depth_chroma_minus8; //0 ue(v) int qpprime_y_zero_transform_bypass_flag; //0 u(1) int seq_scaling_matrix_present_flag; //0 u(1) int seq_scaling_list_present_flag[12]; int UseDefaultScalingMatrix4x4Flag[6]; int UseDefaultScalingMatrix8x8Flag[6]; int ScalingList4x4[6][16]; int ScalingList8x8[6][64]; int log2_max_frame_num_minus4; //0 ue(v) int pic_order_cnt_type; //0 ue(v) int log2_max_pic_order_cnt_lsb_minus4; // int delta_pic_order_always_zero_flag; //u(1) int offset_for_non_ref_pic; //se(v) int offset_for_top_to_bottom_field; //se(v) int num_ref_frames_in_pic_order_cnt_cycle; //ue(v) int offset_for_ref_frame_array[16]; //se(v) int num_ref_frames; //ue(v) int gaps_in_frame_num_value_allowed_flag; //u(1) int pic_width_in_mbs_minus1; //ue(v) int pic_height_in_map_units_minus1; //u(1) int frame_mbs_only_flag; //0 u(1) int mb_adaptive_frame_field_flag; //0 u(1) int direct_8x8_inference_flag; //0 u(1) int frame_cropping_flag; //u(1) int frame_crop_left_offset; //ue(v) int frame_crop_right_offset; //ue(v) int frame_crop_top_offset; //ue(v) int frame_crop_bottom_offset; //ue(v) int vui_parameters_present_flag; //u(1) vui_parameters_t vui_parameters; }SPS; /*** * Picture parameter set */ typedef struct PPS{ int pic_parameter_set_id; int seq_parameter_set_id; int entropy_coding_mode_flag; int pic_order_present_flag; int num_slice_groups_minus1; int slice_group_map_type; int run_length_minus1[32]; int top_left[32]; int bottom_right[32]; int slice_group_change_direction_flag; int slice_group_change_rate_minus1; int pic_size_in_map_units_minus1; int slice_group_id[32]; int num_ref_idx_10_active_minus1; int num_ref_idx_11_active_minus1; int weighted_pred_flag; int weighted_bipred_idc; int pic_init_qp_minus26; int pic_init_qs_minus26; int chroma_qp_index_offset; int deblocking_filter_control_present_flag; int constrained_intra_pred_flag; int redundant_pic_cnt_present_flag; int transform_8x8_mode_flag; int pic_scaling_matrix_present_flag; int pic_scaling_list_present_flag[32]; int second_chroma_qp_index_offset; int UseDefaultScalingMatrix4x4Flag[6]; int UseDefaultScalingMatrix8x8Flag[6]; int ScalingList4x4[6][16]; int ScalingList8x8[2][64]; }PPS; typedef struct get_bit_context{ uint8_t *buf; /*Ö¸ÏòSPS start*/ int buf_size; /*SPS ³¤¶È*/ int bit_pos; /*bitÒѶÁȡλÖÃ*/ int total_bit; /*bit×ܳ¤¶È*/ int cur_bit_pos; /*µ±Ç°¶ÁȡλÖÃ*/ }get_bit_context; /** * @brief Function h264dec_seq_parameter_set() h264 SPS infomation ½âÎö * @param[in] buf get_bit_context½á¹¹µÄbuf ptr, Ðèͬ²½00 00 00 01 X7ºó´«Èë * @param[in] sps_ptr spsÖ¸Õ룬±£´æSPSÐÅÏ¢ * @retval 0: success, -1 : failure * @pre * @post * @note: * Ó÷¨:(α´úÂë) * get_bit_context buffer; //ÉêÇëÒ»¸öget_bit_context½á¹¹buffer * SPS sps_buffer; //ÉêÇëÒ»¸öSPS½á¹¹sps_buffer * ....... * buffer.buf = SPS_start //esÍ·±êʶΪ00 00 00 01 x7ÒÔºóµÄÊý¾Ý£¬²»ÒªÕâÇ°5×Ö½Ú * buffer.buf_size = SPS_len //SPS´ý·ÖÎöÊý¾Ý³¤¶È * ...... * h264dec_seq_parameter_set(&buffer, &sps_buffer); * */ int h264dec_seq_parameter_set(void *buf_ptr, SPS *sps_ptr); /** * @brief Function h264dec_picture_parameter_set() h264 PPS infomation ½âÎö * @param[in] buf buf ptr, Ðèͬ²½00 00 00 01 X8ºó´«Èë * @param[in] pps_ptr ppsÖ¸Õ룬±£´æppsÐÅÏ¢ * @retval 0: success, -1 : failure * @pre * @post * @note: Ó÷¨²Î¿¼sps½âÎö */ int h264dec_picture_parameter_set(void *buf, PPS *pps_ptr); int h264_get_width(SPS *sps_ptr); int h264_get_height(SPS *sps_ptr); int h264_get_format(SPS *sps_ptr); int h264_get_framerate(float *framerate,SPS *sps_ptr); int h265dec_seq_parameter_set(void *buf, int* width,int* height); // for mpeg-2 // sequence header typedef struct _sequence_header_ { unsigned int sequence_header_code; // 0x000001b3 unsigned int frame_rate_code : 4; unsigned int aspect_ratio_information : 4; unsigned int vertical_size_value : 12; unsigned int horizontal_size_value : 12; unsigned int marker_bit : 2; unsigned int bit_rate_value : 30; }sequence_header; // sequence extension typedef struct _sequence_extension_ { unsigned int sequence_header_code; // 0x000001b5 unsigned int marker_bit : 1; unsigned int bit_rate_extension: 12; unsigned int vertical_size_extension : 2; unsigned int horizontal_size_extension : 2; unsigned int chroma_format : 2; unsigned int progressive_sequence : 1; unsigned int profile_and_level_indication : 8; unsigned int extension_start_code : 4; }sequence_extension; void memcpy_sps_data(uint8_t *dst,uint8_t *src,int len); //////////////////////////////////////////////////////// typedef struct slice_header { unsigned char start_code_prefix[4]; unsigned char nalu; }slice_header_t; //5 void get_sps_pps_len(uint8_t *h264_data,int h264_len,int* sps_len,int* pps_len,int* Iframe_len); void get_vps_sps_pps_len(uint8_t *h265_data,int h265_len,int* vps_len,int* sps_len,int* pps_len,int* Iframe_len); bool is_VOL_header(mpeg_header_t* VOL); bool is_sequence_header(mpeg_header_t* SH); bool is_H264_IFrame_Data(uint8_t *h264_data,int h264_len); bool is_h265_IFrame_Data(uint8_t *h265_data,int h265_len); #if defined (__cplusplus) } #endif #endif /*_*/