PictureHeader.top_field_first

• this

• dump
• parse
• parse_extension

• alternate_scan
• burst_amplitude
• chroma_420_type
• composite_display_flag
• concealment_motion_vectors
• f_code
• field_sequence
• frame_pred_frame_dct
• intra_dc_precision
• intra_vlc_format
• picture_coding_type
• picture_structure
• progressive_frame
• q_scale_type
• repeat_first_field
• si
• sub_carrier
• sub_carrier_phase
• temporal_reference
• top_field_first
• v_axis
• vbv_delay