• rtmp流媒体协议分析(h264、aac)



    sound format:10, rate:3, size:1, type:1, pkt type:0
    audio obj type:2,sample frequency index:3,channel configuration:2
    bg57iv3
    Nal length 28 start code 4 bytes ,0.001
     ref 3 type 7 Sequence parameter set
       profile: 100
       constaint_set0_flag: 0
       constaint_set1_flag: 0
       constaint_set2_flag: 0
       constaint_set3_flag: 0
       level_idc: 40
       seq parameter set id: 0
       chroma format idx: 1
       bit depth luma minus8: 0
       bit depth chroma minus8: 0
       Qpprime Y Zero Transform Bypass flag: 0
       Seq Scaling Matrix Present Flag: 0
       log2_max_frame_num_minus4: 0
       pic_order_cnt_type: 0
        log2_max_pic_order_cnt_lsb_minus4: 2
       num_ref_frames: 4
       gaps_in_frame_num_value_allowed_flag: 0
       pic_width_in_mbs_minus1: 119 (1920)
       pic_height_in_map_minus1: 67
       frame_mbs_only_flag: 1
         derived height: 1088
       direct_8x8_inference_flag: 1
       frame_cropping_flag: 1
         frame_crop_left_offset: 0
         frame_crop_right_offset: 0
         frame_crop_top_offset: 0
         frame_crop_bottom_offset: 4
       vui_parameters_present_flag: 1
        aspect_ratio_info_present_flag: 0
        overscan_info_present_flag: 0
        video_signal_info_present_flag: 1
         video_format: 5
         video_full_range_flag: 0
         colour_description_present_flag: 1
          colour_primaries: 1
          transfer_characteristics: 13
          matrix_coefficients: 1
        chroma_loc_info_present_flag: 0
        timing_info_present_flag: 1
         num_units_in_tick: 1
         time_scale: 60
         fixed_frame_scale: 1
        nal_hrd_parameters_present_flag: 0
        vcl_hrd_parameters_present_flag: 0
        pic_struct_present_flag: 0
        motion_vectors_over_pic_boundaries_flag: 1
        max_bytes_per_pic_denom: 0
        max_bits_per_mb_denom: 0
        log2_max_mv_length_horizontal: 11
        log2_max_mv_length_vertical: 11
        num_reorder_frames: 2
         max_dec_frame_buffering: 4
    Nal length 4 start code 4 bytes 0.058
     ref 3 type 8 Picture parameter set
       pic_parameter_set_id: 0
       seq_parameter_set_id: 0
       entropy_coding_mode_flag: 1
       pic_order_present_flag: 0
       num_slice_groups_minus1: 0
       num_ref_idx_l0_active_minus1: 0
       num_ref_idx_l1_active_minus1: 0
       weighted_pred_flag: 1
       weighted_bipred_idc: 2
       pic_init_qp_minus26: 0
       pic_init_qs_minus26: 0
       chroma_qp_index_offset: 0
       deblocking_filter_control_present_flag: 1
       constrained_intra_pred_flag: 0
       redundant_pic_cnt_present_flag: 0
       transform_8x8_mode_flag: 1
       pic_scaling_matrix_present_flag: 0
       second_chroma_qp_index_offset: 0
    Nal length 87575 start code 4 bytes 0.636
     ref 3 type 5 Coded slice of an IDR picture
       first_mb_in_slice: 0
       slice_type: 7 (I)
       pic_parameter_set_id: 0
       frame_num: 0 (4 bits)
       idr_pic_id: 0
       pic_order_cnt_lsb: 0
       Nal is new picture, frame_num:0,au_num:1


    sound format:10, rate:3, size:1, type:1, pkt type:1
     audio pkt payload:9


    sound format:10, rate:3, size:1, type:1, pkt type:1
     audio pkt payload:9


    Nal length 3236 start code 4 bytes 33.718
     ref 2 type 1 Coded slice of non-IDR picture
       first_mb_in_slice: 0
       slice_type: 5 (P)
       pic_parameter_set_id: 0
       frame_num: 1 (4 bits)
       pic_order_cnt_lsb: 8

       Nal is new picture, frame_num:1,au_num:2


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  • 原文地址:https://www.cnblogs.com/IS2120/p/8313141.html
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