DECODEACTIVEFORMAT DAF D0
If ON, the decoder will read the Active Format Description in the encoded stream
and modify the format of the output to match the AFD settings. If the output
is analog (NTSC, PAL, etc), WSS will be insrted to signal the receiver with the
AFD setting.
If ON, the AFD settings are periodically checked for changes. If a change to the
AFD setting occurs, the output format will be modified to match the updated AFD.
The currently sensed Active Format Description setting can be shown by using
the 'active' argument.
The default setting is OFF.
The DECODEACTIVEFORMAT setting is saved in the DCMD CONFIGURATION file.
Note: When the DECODEACTIVEFORMAT is made active, the OUTPUTASPECTRATIO and
OUTPUTVIDEOSCALE settings will be forced to an OFF condition.
Form:
Command Handler: DCMD
DECODEACTIVEFORMAT|DAF|D0 [ARGUMENT]
Argument List:
Terse Verbose Description
0 OFF (DEFAULT) Active Format Description is not decoded from the stream
1 ON Active Format Description is decoded, and the output is modified to match
active Returns current Active Format Description status (not case sensitive)
Response:
DECODEACTIVEFORMAT RESPONSE
Verbose- "OK\r\n" to acknowledge receipt of command, or
"ERROR- [Description]\r\n" if error, ending command
Terse- "0\r\n" to acknowledge receipt of command, or
"[NON-ZERO NUMERIC VALUE]\r\n" if error, ending command
"\r\n" concludes modify responses (empty line)
Examples:
Verbose command to enable active format description decode for all display targets:
*.DCMD DAF ON<enter>
Response is: OK\r\n
Terse command to enable active format description decode for all display targets:
*.DCMD D0 1 <enter>
Response is: 0\r\n
Verbose command to retrieve current setting:
*.DCMD DECODEACTIVEFORMAT <enter>
Response is: OK\r\n
DECODEACTIVEFORMAT= ON\r\n
Terse command to retrieve current setting:
*.DCMD D0 <enter>
Response is: 0\r\n
1\r\n
Verbose command to retrieve current AFD status:
*.DCMD DECODEACTIVEFORMAT <enter>
Response is:
OK\r\n
DECODEACTIVEFORMAT: ON AFD Type: AS_CODEDFRAME (8) Aspect Ratio: 16:9\r\n
Terse command to retrieve current AFD status:
*.DCMD D0 <enter>
Response is: 0\r\n
1 8 16:9\r\n
Notes:
The decoder does not parse the Active Format Description for H.264
encoded streams. However, it will update the output based on the aspect ratio
of the H.264 video stream.