Issue seen in decoding compressed bitmap in EPDAN

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Max msuraev at sysmocom.de
Wed Jun 15 13:35:25 UTC 2016


Thanks for reporting. Could you make a ticket in
http://projects.osmocom.org/ please? It would make tracking it easier.

On 06/15/2016 03:32 PM, Prasad Kaup wrote:
>
> Hello,
>
>                 During testing  with latest master osmo-pcu,  we see
> that there  is an issue  in decoding of compressed bitmap with make-up
> code in EPDAN
>
> Input to decoding algorithm:
>
> Compressed bitmap array : 0x7a,0x28,0x31,0xe1,0xf1,0xc1,0x6c,0x32,0x87
>
> Starting colour code : 1
>
> Length : 72
>
>  
>
> Expected output ( Refer  3GPP 44.060 section 9.1.10):
>
> Expected decoded Length: 304
>
> Expected Uncompressed bitmap: dd c1 48 00 00 00 00 00 00 00 00 00 00
> 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 01
>
>  
>
> Actual output:
>
> Actual decoded length :292
>
> Actual Uncompressed bitmap:  dd c1 48 00 00 00 00 00 00 00 00 00 00 00
> 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>
>  
>
> Regards
>
> Prasad
>

-- 
Max Suraev <msuraev at sysmocom.de> http://www.sysmocom.de/
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