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smpte-352_link_number [2016/11/22 12:36] walkeradminsmpte-352_link_number [2016/11/22 12:43] walkeradmin
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 +In the next example, the 3G-SDI inputs have been connected in an incorrect order:
 +\\ 
 +    SDI input 0 locked to 1080p at 59.94 frames/s (SMPTE-352 link number 0)
 +    SDI input 1 locked to 1080p at 59.94 frames/s (SMPTE-352 link number 1)
 +    SDI input 2 locked to 1080p at 59.94 frames/s (SMPTE-352 link number 3)
 +    SDI input 3 locked to 1080p at 59.94 frames/s (SMPTE-352 link number 2)
 +    UHD input remapping: SDI 0 -> UHD 0, SDI 1 -> UHD 1, SDI 2 -> UHD 3, SDI 3 -> UHD 2
 +    Video set to 2160p (interleaved format) at 59.94 frames/s
 +    Video source is SDI (video locked)
 +    Action on video loss is freeze frame without ident text
 +    Front panel video monitor source is output 0 to NARA
 +\\ 
 +Here we can see that the SMPTE-352 order is 0,1,3,2. So the last two inputs are swapped. Although the AVP HEVC card can cope with this, and the encode will look fine (because the SMPTE-352 link numbers are present) we can see that the <color red>UHD input remapping</color> is now reporting <color red>SDI 0 -> UHD 0, SDI 1 -> UHD 1, SDI 2 -> UHD 3, SDI 3 -> UHD 2</color> to let us know that the AVP is dealing with a mis-plugged input.
 +\\ 
 +\\ 
 +I tested this in Quad mode (the AJA Ki Pro allows you to select either Sqare or 2SI output) and got the following:
 +\\ 
 +    SDI input 0 locked to 1080p at 59.94 frames/s (SMPTE-352 link number 0)
 +    SDI input 1 locked to 1080p at 59.94 frames/s (SMPTE-352 link number 0)
 +    SDI input 2 locked to 1080p at 59.94 frames/s (SMPTE-352 link number 0)
 +    SDI input 3 locked to 1080p at 59.94 frames/s (SMPTE-352 link number 0)
 +    UHD input remapping: none
 +    Video set to 2160p (interleaved format) at 59.94 frames/s
 +    Video source is SDI (video locked)
 +    Action on video loss is freeze frame without ident text
 +    Front panel video monitor source is output 0 to NARA
 +\\ 
 +Here we can see that there are no SMPTE-352 Link numbers present, so perhaps SMPTE-352 Link numbers are only part of the interleaved specification.
 +\\ 
 +\\ 
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smpte-352_link_number.txt · Last modified: 2023/03/09 22:35 by 127.0.0.1