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20-6. AFD Code Abbreviations
SMPTE S2016-3 AFD aspect ratio table
In a 4:3 coded frame In a 16:9 coded frame AFD
Code
UNDEFINED Undefined UNDEFINED Undefined 0000
RESERVED Reserved RESERVED Reserved 0001
4:3 L 16:9 T Letterbox 16:9 image, at
top of the coded frame
16:9 F 16:9 Full frame 16:9 image, the
same as the coded frame
0010
4:3 L14:9 T Letterbox 14:9 image, at
top of the coded frame
16:9 P 14:9 Pillarbox 14:9 image,
horizontally centered in the
coded frame
0011
4:3 L>16:9 Letterbox image with an
aspect ratio greater than
16:9, vertically centered in
the coded frame
16:9 L>16:9 Letterbox image with an
aspect ratio greater than
16:9, vertically centered in
the coded frame
0100
RESERVED Reserved RESERVED Reserved 0101
RESERVED Reserved RESERVED Reserved 0110
RESERVED Reserved RESERVED Reserved 0111
4:3 F 4:3 Full frame 4:3 image, the
same as the coded frame
16:9 F 16:9 Full frame 16:9 image, the
same as the coded frame
1000
4:3 F 4:3 Full frame 4:3 image, the
same as the coded frame
16:9 P 4:3 Pillarbox 4:3 image,
horizontally centered in the
coded frame
1001
4:3 L16:9PRTD Letterbox 16:9 image,
vertically centered in the
coded frame with all image
areas protected
16:9 F PRTD Full frame 16:9 image, with
all image areas protected
1010
4:3 L 14:9 Letterbox 14:9 image,
vertically centered in the
coded frame
16:9 P 14:9 Pillarbox 14:9 image,
horizontally centered in the
coded frame
1011
RESERVED Reserved RESERVED Reserved 1100
4:3 F ALT14:9 Full frame 4:3 image, with
alternative 14:9 center
16:9P ALT14:9 Pillarbox 4:3 image, with
alternative 14:9 center
1101
4:3 L ALT14:9 Letterbox 16:9 image, with
alternative 14:9 center
16:9F ALT14:9 Full frame 16:9 image, with
alternative 14:9 center
1110
4:3 L ALT 4:3 Letterbox 16:9 image, with
alternative 4:3 center
16:9 F ALT4:3 Full frame 16:9 image, with
alternative 4:3 center
1111