CODEC_FLAG2_STRICT_GOP 1113 libavcodec/mpegvideo_enc.c               if((s->flags2 & CODEC_FLAG2_STRICT_GOP) && s->gop_size > s->picture_in_gop_number){
CODEC_FLAG2_STRICT_GOP   88 libavcodec/options.c {"sgop", "strictly enforce gop size", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_STRICT_GOP, INT_MIN, INT_MAX, V|E, "flags2"},