Hi Jocelyn,
in PBF files there is only one kind of file timestamp:
"osmosis_replication_timestamp". It has been defined here:
https://wiki.openstreetmap.org/wiki/.pbf#Definition_of_the_OSMHeader_fileblock
The timestamp field osmconvert retrieves from a pbf file is indeed this
"osmosis_replication_timestamp".
osmconvert does not care about the remaining two osmosis-related .pbf
file parameters:
osmosis_replication_sequence_number and osmosis_replication_base_url
To read these parameters you could add some debug output to the code
(see lines marked with arrows):
case 0x80: // 0x02 V 32, osmosis_replication_timestamp ,,,
if(bp[1]!=0x02) goto h_unknown;
bp+= 2;
pb_filetimestamp= pbf_uint64(&bp);
break;
case 0x88: // 0x02 V 33, osmosis_replication_sequence_number
if(bp[1]!=0x02) goto h_unknown;
bp+= 2;
pbf_uint64(&bp); // (ignore this element) <-----------
break;
case 0x92: // 0x02 S 34, osmosis_replication_base_url
if(bp[1]!=0x02) goto h_unknown;
bp+= 2;
l= pbf_uint32(&bp);
bp+= l; // (ignore this element) <-----------
break;
If you need these data fields on a regular basis, I would like to
suggest that I added some coding to the osmconvert master source. Please
let me know.
Bye
Markus
Am 18.11.2013 21:30, schrieb Jocelyn Jaubert:
Hi,
According to the following webpage, it is possible to add optional
informations to the pbf file about replication configuration.
http://wiki.openstreetmap.org/wiki/Pbf#Encoding_OSM_entities_into_fileblocks
I'm using osmosis to generate my PBF files with replication, and I expect
osmosis to write these fields. Is it correct ?
Is there an existing tool to read or write these fields ?
I've tried "osmconvert --out-statistics", which shows a timestamp field, but
no osmosis_replication_* fields.
Thanks,
Jocelyn
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