Suunto DM5 Imports broken
Dirk Hohndel
dirk at hohndel.org
Thu Jun 7 08:25:14 PDT 2018
Miika is the wunderkind-slash-madman who maintains our importers and deals with the XSLT...
/D
> On Jun 7, 2018, at 1:58 AM, Rainer Mohr <mail at divelogs.de> wrote:
>
> Gentlemen,
>
> Just noticed, that the Suunto DM5 Import is very broken as it can't parse the profile data from recent and semi-recent DM5 files properly.
> Suunto has once again changed their data structures in the profile part of DM5. Noticed after quite a few broken profiles popped up on divelogs.de
> Now the 'SampleBlob' can contain not only blocks of 16, 23 and 26 Bytes, but new: 30 Bytes (detectable by first Byte being '5')
>
> Here is my PHP code for handling the profile parts from the SQLite Data, hope someone can translate this into what you need, as I would be useless at doing so:
>
> <?php
> // $databaserow contains the data from one dive, queried from the database
> $data = $databaserow['SampleBlob'];
> $samples = Array();
>
> // Depending on first Byte: Samples are in blocks of 23 or 16 or 26 or 30 bytes
> if (ord($data[0])==3) { // 23 Bytes per sample
> $data = substr($data,1,strlen($data));
> for($i = 0; $i < strlen($data)/23; ++$i) {
> $s = unpack("f",$data[$i*23+2].$data[$i*23+3].$data[$i*23+4].$data[$i*23+5]);
> if ($s[1] < 200) $samples[] = round($s[1],1);
> }
> } elseif (ord($data[0])==4) { // 26 Bytes per sample
> $data = substr($data,1,strlen($data));
> for($i = 0; $i < strlen($data)/26; ++$i) {
> $s = unpack("f",$data[$i*26+2].$data[$i*26+3].$data[$i*26+4].$data[$i*26+5]);
> if ($s[1] < 200) $samples[] = round($s[1],1);
> }
> } elseif (ord($data[0])==5) { // 30 Bytes per sample
> $data = substr($data,1,strlen($data));
> for($i = 0; $i < strlen($data)/30; ++$i) {
> $s = unpack("f",$data[$i*30+2].$data[$i*30+3].$data[$i*30+4].$data[$i*30+5]);
> if ($s[1] < 200) $samples[] = round($s[1],1);
> }
> } else { // 16 Bytes per sample
> for($i = 0; $i < strlen($data)/16; ++$i) {
> $s = unpack("f",$data[$i*16+3].$data[$i*16+4].$data[$i*16+5].$data[$i*16+6]);
> if ($s[1] < 200) $samples[] = round($s[1],1);
> }
> }
>
> // in case Dives from imported DM4 are available
> if (count($samples)==0) {
> $data = $databaserow['ProfileBlob'];
> for($i = 0; $i < strlen($data)/4; ++$i) {
> $s = unpack("f",$data[$i*4].$data[$i*4+1].$data[$i*4+2].$data[$i*4+3]);
> if ($s[1] < 200) $samples[] = round($s[1],1);
> }
> }
> ?>
>
> Rainer
>
>
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