ACTIVEFORMATDES AFD A4
Display or Modify the current active format descriptor setting.
Form:
Command Handler: DCMD
ACTIVEFORMATDES|AFD|A4 [ARGUMENT]
Argument List:
0= OFF
1= WSS
2= BOX16:9_T
3= BOX14:9_T
4= BOX16:9_C
5= AS_CODEDFRAME
6= 4:3_C
7= 16:9_C
8= 14:9_C
9= 4:3_SP_14:9_C
10= 16:9_SP_14:9_C
11= 16:9_SP_4:3_C
Response:
Examples:
Notes:
Active Format Descriptor is data that can be sent in a MPEG video stream that provides information about the
aspect ratio and picture characteristics within the stream. AFD compatible display or STB/IRD is required.
AFD is related to Aspect Ratio. Aspect Ratio defines pixel aspect ratio as encoded. AFD is used by downstream
decoding devices to properly display pixel aspect ratio on displays with differing aspect ratios. If the argument
OFF is used then the AFD code found in the incoming data stream will be used for the AFD code. If any other
argument is used, that AFD code will be put in it's place and always sent on the line number configured.