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| nordig LCN / 14 bit vs 10 bit http://www.avalpa.com/forum/viewtopic.php?f=11&t=255 |
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| Author: | jules [ Tue Sep 06, 2016 7:34 pm ] |
| Post subject: | nordig LCN / 14 bit vs 10 bit |
Hi guys, I found the following code in the descriptors declarations: class lcn_service_descriptor_loop_item(DVBobject): def pack(self): fmt = "!HH" return pack(fmt, self.service_ID, ((self.visible_service_flag << 15) | 0x7C00 | self.logical_channel_number), ) However for nordig LCN, the logical_channel_number field is expected to be 14 bit, not 10 bit. Has anyone done any alterations to this which allow nordig compliant LCN generation? Thanks! Jules |
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| Author: | jules [ Wed Sep 07, 2016 10:16 am ] |
| Post subject: | Re: nordig LCN / 14 bit vs 10 bit |
Don't worry, cracked it. Made a new descriptor as follows: class lcn_service_descriptor_14_loop_item(DVBobject): def pack(self): fmt = "!HH" return pack(fmt, self.service_ID, ((self.visible_service_flag << 15) | 0x4000 | self.logical_channel_number), ) Now the LCN is respected when 14 bit logical_channel_number field is expected... 
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