ffmpeg -i /Users/Sashmo/Desktop/HS\ Testing/HS902168.mxf -progress block.txt -map 0:0 -codec:v mpeg2video -b:v 13.5M -minrate 13.5M -maxrate 13.5M -bufsize 6M -g 15 -bf 2 -pix_fmt yuv420p -filter_complex "[0:1][0:2][0:3][0:4][0:5][0:6]amerge=inputs=6,asplit=2[aout1][aout2]" -map "[aout1]" -codec:a ac3 -b:a 384k -ar 48000 -channel_layout 63 -map "[aout2]" -codec:a ac3 -b:a 384k -ar 48000 -channel_layout 3 -f mpegts  -muxrate 15M -mpegts_pmt_start_pid 480 -streamid 0:481 -streamid 1:482  -flags +ilme+ildct+cgop -alternate_scan 1 -top 1 -b_strategy  0 -sc_threshold 1000000000 -mpv_flags +strict_gop -y  /Users/Sashmo/Desktop/HS\ Testing/TEST.ts