[digiKam-users] digiKam-7.0.0-beta2-20200105T135131-Win64 overwrite file 0x00 bytes

[Tóth Csaba]

Hello!

After the taging, when the digikam write the metadata back (face tags)
its overwrite the file big parts with 0x00 bytes, so its kill the file

(its happen twice, with tiff files)

how can i prevent this, or there is a switch to _always_ make a backup?
(even multiple backup is there is a backup?)

Thanx

Csaba

[Gilles Caulier-4]

Hi,

This happen only with tiff files ?

How do you generated this TIFF file exactly ?

The Exiv2 library is the important component used by digiKam to delegate all the metadata operations in files, and i suspect a bug in Exiv2 with TIFF. I know that older Exiv2 version can be problematic with TIFF. 

Can you share the TIFF file on the cloud to try to reproduce the problem here ?

Best

Gilles Caulier

Le mar. 7 janv. 2020 à 07:03, Tóth Csaba <[hidden email]> a écrit :

Hello!

After the taging, when the digikam write the metadata back (face tags)
its overwrite the file big parts with 0x00 bytes, so its kill the file

(its happen twice, with tiff files)

how can i prevent this, or there is a switch to _always_ make a backup?
(even multiple backup is there is a backup?)

Thanx

Csaba

[Tóth Csaba]

Hello!

I worked on Tiff files and after the second error, i exit from the program, so I dont know its only with tiff files.

I try to tag the files just for reproduce this error, and i make a copy before.

After found an error, i tried do it again, but the second time (and third) it was no problem.

How can is reach the cloud to upload the file?

Csaba

On 2020-01-10 08:01, Gilles Caulier wrote:

Hi,

This happen only with tiff files ?

How do you generated this TIFF file exactly ?

The Exiv2 library is the important component used by digiKam to delegate all the metadata operations in files, and i suspect a bug in Exiv2 with TIFF. I know that older Exiv2 version can be problematic with TIFF. 

Can you share the TIFF file on the cloud to try to reproduce the problem here ?

Best

Gilles Caulier

Le mar. 7 janv. 2020 à 07:03, Tóth Csaba <[hidden email]> a écrit :

Hello!

After the taging, when the digikam write the metadata back (face tags)
its overwrite the file big parts with 0x00 bytes, so its kill the file

(its happen twice, with tiff files)

how can i prevent this, or there is a switch to _always_ make a backup?
(even multiple backup is there is a backup?)

Thanx

Csaba

[Gilles Caulier-4]

Le ven. 10 janv. 2020 à 10:21, Tóth Csaba <[hidden email]> a écrit :

Hello!

I worked on Tiff files and after the second error, i exit from the program, so I dont know its only with tiff files.

I try to tag the files just for reproduce this error, and i make a copy before.

After found an error, i tried do it again, but the second time (and third) it was no problem.

How can is reach the cloud to upload the file?

Something like google drive for ex, or another free share file storage web service...

Best

Gilles Caulier

[Gilles Caulier-4]

Yes, i can confirm that your "wrong" image are corrupted (visible with thumbnail) and "orig" are fine.

If i tag "orig" files with metadata option enabled, file still valid here. I cannot reproduce the problem...

Gilles Caulier

Le ven. 10 janv. 2020 à 10:57, Gilles Caulier <[hidden email]> a écrit :

Le ven. 10 janv. 2020 à 10:21, Tóth Csaba <[hidden email]> a écrit :

Hello!

I worked on Tiff files and after the second error, i exit from the program, so I dont know its only with tiff files.

I try to tag the files just for reproduce this error, and i make a copy before.

After found an error, i tried do it again, but the second time (and third) it was no problem.

How can is reach the cloud to upload the file?

Something like google drive for ex, or another free share file storage web service...

Best

Gilles Caulier

[Tóth Csaba]

Hello!

The "orig" files was inside the digikam before the tagging. I run face detect, give a name the face and/or manual create a face rectangle with name, and go to the next.

Sometime after the tagging i get the wrong files.

I cant reproduce with twice with the same file.

Csaba

ps: i do heavy backuping before tagging..

On 2020-01-10 16:38, Gilles Caulier wrote:

Yes, i can confirm that your "wrong" image are corrupted (visible with thumbnail) and "orig" are fine.

If i tag "orig" files with metadata option enabled, file still valid here. I cannot reproduce the problem...

Gilles Caulier

Le ven. 10 janv. 2020 à 10:57, Gilles Caulier <[hidden email]> a écrit :

Le ven. 10 janv. 2020 à 10:21, Tóth Csaba <[hidden email]> a écrit :

Hello!

I worked on Tiff files and after the second error, i exit from the program, so I dont know its only with tiff files.

I try to tag the files just for reproduce this error, and i make a copy before.

After found an error, i tried do it again, but the second time (and third) it was no problem.

How can is reach the cloud to upload the file?

Something like google drive for ex, or another free share file storage web service...

Best

Gilles Caulier

[Gilles Caulier-4]

Ok, so the dysfunction appear only with face tags, not regular tags. 

What's about to disable the face tags registration in image metadata option from DK/configuration Dilaog/Metadata Page ?

Problem still reproducible ?

Best

Gilles Caulier

Le ven. 10 janv. 2020 à 19:00, Tóth Csaba <[hidden email]> a écrit :

Hello!

The "orig" files was inside the digikam before the tagging. I run face detect, give a name the face and/or manual create a face rectangle with name, and go to the next.

Sometime after the tagging i get the wrong files.

I cant reproduce with twice with the same file.

Csaba

ps: i do heavy backuping before tagging..

On 2020-01-10 16:38, Gilles Caulier wrote:

Yes, i can confirm that your "wrong" image are corrupted (visible with thumbnail) and "orig" are fine.

If i tag "orig" files with metadata option enabled, file still valid here. I cannot reproduce the problem...

Gilles Caulier

Le ven. 10 janv. 2020 à 10:57, Gilles Caulier <[hidden email]> a écrit :

Le ven. 10 janv. 2020 à 10:21, Tóth Csaba <[hidden email]> a écrit :

Hello!

I worked on Tiff files and after the second error, i exit from the program, so I dont know its only with tiff files.

I try to tag the files just for reproduce this error, and i make a copy before.

After found an error, i tried do it again, but the second time (and third) it was no problem.

How can is reach the cloud to upload the file?

Something like google drive for ex, or another free share file storage web service...

Best

Gilles Caulier