[Mp4-tech] about H.264/AVC standard document

[=?gb2312?B?zfXI2bjV?=]

hello,experts:
     In h.264/AVC standard document(JVT-G050r1,Page 86) there is a paragraph about FMO decoding:
Otherwise (frame_mbs_only_flag is equal to 0 and mb_adaptive_frame_field_flag is equal to 0 and field_pic_flag is equal to 0), the macroblock to slice group map is specified by:
MbToSliceGroupMap[ i ] = mapUnitToSliceGroupMap[ ( i / ( 2 * PicWidthInMbs ) ) * PicWidthInMbs
                                                                                            + ( i % PicWidthInMbs ) ]                  (8-27)
     who can tell me what's the picture type(frame or field or others) if "frame_mbs_only_flag is equal to 0 and mb_adaptive_frame_field_flag is equal to 0 and field_pic_flag is equal to 0"?
     thanks!
     ronggang
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