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Forums > C64 Coding > HVSC SID Playtime Database ?
2017-06-26 22:26

Registered: Sep 2003
Posts: 53
HVSC SID Playtime Database ?

I am currently coding something Sid related Tool for PC and was wondering if there exists a Database (csv,xml,or whatever) that contains the default Sid Subtune Playtimes.

At the Moment i use Siddiag to recieve the Sidtimes, but this very annoying and time intense. If there would be a DB-File where i could search with the MD5 of the Sid that would speed up Time detecting a lot.

Anyone knows about the existance of this or something simmilar ?
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2017-06-27 21:04

Registered: Dec 2001
Posts: 8211
why dont you just use the functions from the source i posted above? lol
2017-06-27 21:15

Registered: Sep 2003
Posts: 53
lol ? probably you dont expect there are people not coding c , i am not into c at all.

but instead of porting that code to my project i decided to use 17 lines of code to merge sidlenghts.txt and my previous created hvsc67.md5 into a new songlength.md5

as previously said, thanks for guiding into the right Direction :-)
2017-06-27 21:29

Registered: Dec 2001
Posts: 8211
2017-06-27 21:30

Registered: Mar 2009
Posts: 407
Fred lives here
he knows best.
Contact him with whatever issues about songlenghts.txt
2017-06-28 09:08

Registered: Jan 2003
Posts: 337
Again, in case the message didn't get through yet:
The MD5 in Songlengths.txt is based on the .sid file contents, not on the playback result.
2017-06-28 13:08

Registered: Sep 2003
Posts: 53
Sorry to disappoint you.But You can Check yourself. They are Not

atleast not with Files i tested. But will to be 1000% sure i will test again this evening
2017-06-28 15:04

Registered: Feb 2003
Posts: 160
The MD5 hashes in the Songlengths.txt file are based on the content but not on the full content. You need to know which fields in the SID header needs to be included in the MD5 calculation and how to handle them and in which order, in order to get the right MD5 hash.

The MD5 calculation was done in the time that we had to compare a lot of SIDs against the HVSC collection to filter out double entries. There was a need that SIDs with a different title, author or released field would produce the same hash. The same MD5 calculation was used for the Songlengths database since the tooling was already there.

For a lot of people the calculation is confusing and unclear. Having the MD5 hash based on the full content makes more sense and we're considering it for changing it since there is no need for having this kind of MD5 hash for the songlengths database. Changing it means also that current applications and tools need to be updated.
2017-06-28 16:00

Registered: Dec 2001
Posts: 8211
i miss engraved64 in this thread
2017-06-29 17:14

Registered: Jan 2005
Posts: 271
Quoting Groepaz
i miss engraved64 in this thread

lol, that would seriously derail this thread.
2017-06-29 17:25

Registered: Dec 2001
Posts: 8211
this is not usual method
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