calibre ereader output testers needed

user_none · 04-25-2009, 05:31 PM

I've implemented ereader output more or less in Calibre for 0.6. There is still some more work to do with it but the base work is done. That is providing the files can be read properly in ereader pro. I've attached a pdb of newsweek which was downloaded with Calibre. Can someone try it out in an ereader app and tell me if it even opens?

=X= · 04-25-2009, 06:28 PM

This file did not work on my BlackBerry storm
I also tested my files to make sure it was not just my device
It worked

I'm not sure why this file does not work.

I gave you ghe pml for the test file, can you build them with your tool? If so load it herw so I can test it

user_none · 04-25-2009, 07:37 PM

Okay, try this one. I don't know what some of the record0 locations are supposed to contain so I'm just guessing based upon what I see in the test files. This one also guarantees images are PNG and not larger than the maximum.

=X= · 04-26-2009, 01:19 AM

Okay I've looked at these books both with the eReader Desktop and the eReader for BB

The BB does not work with either files

The eReader crashes with the file in post #1 after you turn page 1
The eReader crashes on page 6

=X=

user_none · 04-26-2009, 09:29 AM

Okay, try these three.

Quote:

Originally Posted by =X=

I gave you ghe pml for the test file, can you build them with your tool?

mytest.pdb is the output. I can't load the pml directly. The file is your test.pdb converted to epub then converted back to ereader pdb. The sidebar and footnotes should be text at the end of the file and not embedded like before.

=X= · 04-26-2009, 01:15 PM

Quote:

Originally Posted by user_none

Okay, try these three.

mytest.pdb is the output. I can't load the pml directly. The file is your test.pdb converted to epub then converted back to ereader pdb. The sidebar and footnotes should be text at the end of the file and not embedded like before.

newsweek.pdb
hc.pdb
mytest.pdb

None of the above files work on the eReader desktop or the Blackberry Storm eReader.

I'm not sure how this "newsweek.pdb" differes from that of post #3 but this newsweek crashes the eReader on load. The latter crashed the eReader only on the last page.

Non have worked on the eReader BlackBerry

user_none · 04-26-2009, 04:58 PM

3 more to try. Here is what's going on with these files.

ereader files are comprised of 3 basic parts, pdb header, ereader header and data. The pdb header which specifies the internal format type and the layout of the data sections. The first section is the ereader format header. It specifies a lot of information such as format version, compression. Most importantly it specifies what type of data is in each of the remaining sections. I know what 10 of the sections are and what kind of value they should have. However, there are 27 sections.

What I'm doing is inspecting the data in the 17 unknown sections in various files from different sources and I'm looking for patterns on the differences in their values. Some are easy to spot, they have the same value no matter what file or application built them. Some are harder. As I analyze the values I'm adjusting the output of my writer and hoping I get it right.

=X= · 04-26-2009, 10:12 PM

Both mytest.pdb and newsweek.pdb hang the desktop eReader. hc.pdb generates an error message "This file is a format not recognized by eReader"

I did not try these on the BB storm

=X=

wallcraft · 04-26-2009, 11:24 PM

Quote:

Originally Posted by user_none

3 more to try.

All the eReader files I have seen start with the title of the ebook. These examples don't seem to do so.

DaleDe · 04-27-2009, 11:39 AM

Quote:

Originally Posted by wallcraft

All the eReader files I have seen start with the title of the ebook. These examples don't seem to do so.

That is true of all PDB Palm files. The first 32 bytes holds a zero terminated title for the database. All of this is documented in our wiki.

Dale

user_none · 04-27-2009, 05:21 PM

Quote:

Originally Posted by DaleDe

Quote:

Originally Posted by wallcraft

All the eReader files I have seen start with the title of the ebook. These examples don't seem to do so.

That is true of all PDB Palm files. The first 32 bytes holds a zero terminated title for the database. All of this is documented in our wiki.

The files all have a 32 byte zero terminated title string at the beginning of the file. The string is empty because I haven't implemented writing metadata to the file yet.

JSWolf · 04-28-2009, 08:45 AM

Maybe the 32 byte title string is not allowed to be empty.

user_none · 04-28-2009, 05:26 PM

Quote:

Originally Posted by JSWolf

Maybe the 32 byte title string is not allowed to be empty.

It is. I've also tried it with text in it. As of right now due to the lack of information on the format eReader output is being put on hold for the time being.

DaleDe · 04-28-2009, 07:38 PM

Quote:

Originally Posted by user_none

It is. I've also tried it with text in it. As of right now due to the lack of information on the format eReader output is being put on hold for the time being.

Did you look in the wiki? It is documented there.

Dale

user_none · 04-28-2009, 07:43 PM

Quote:

Originally Posted by DaleDe

Did you look in the wiki? It is documented there.

The pdb header is documented on the wiki. Within the pdb container is the a header for the ereader format. It is record 0 of the pdb file. The ereader header is a 132 byte package that defines certain values regarding to the ereader format within the pdb container. The 132 byte ereader header is not defined in the wiki and I have not been able to find it defined fully anywhere.

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04-25-2009, 06:28 PM	#2
=X= Wizard Posts: 3,671 Karma: 12205348 Join Date: Mar 2008 Device: Galaxy S, Nook w/CM7	This file did not work on my BlackBerry storm I also tested my files to make sure it was not just my device It worked I'm not sure why this file does not work. I gave you ghe pml for the test file, can you build them with your tool? If so load it herw so I can test it

04-26-2009, 01:19 AM	#4
=X= Wizard Posts: 3,671 Karma: 12205348 Join Date: Mar 2008 Device: Galaxy S, Nook w/CM7	Okay I've looked at these books both with the eReader Desktop and the eReader for BB The BB does not work with either files The eReader crashes with the file in post #1 after you turn page 1 The eReader crashes on page 6 =X=

04-26-2009, 10:12 PM	#8
=X= Wizard Posts: 3,671 Karma: 12205348 Join Date: Mar 2008 Device: Galaxy S, Nook w/CM7	Both mytest.pdb and newsweek.pdb hang the desktop eReader. hc.pdb generates an error message "This file is a format not recognized by eReader" I did not try these on the BB storm =X=

04-28-2009, 08:45 AM	#12
JSWolf Resident Curmudgeon Posts: 73,897 Karma: 128597114 Join Date: Nov 2006 Location: Roslindale, Massachusetts Device: Kobo Libra 2, Kobo Aura H2O, PRS-650, PRS-T1, nook STR, PW3	Maybe the 32 byte title string is not allowed to be empty.

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