[PC] SamyGO PVRDecoder for E/F/H series - Version 1.8.2.53

[Lordbyte]

Do you experience dropouts of your network in other scenarios?
Are your network wired or wireless?
Do you experience brown-outs in your area (loss of electricity)?
Will the same file fail at the same spot every time, or is there a random element to it?
Do you have some antivirus/firewall-product running with some hourly scan?
Will your OTHER computer stop at the same place?

Go be Sherlock Holmes for me, mate

[1qay2wsx3edc]

Here are the results from sherlocks investigation:

Do you experience dropouts of your network in other scenarios?
> NO
Are your network wired or wireless?
> GB-Net-Wired
Do you experience brown-outs in your area (loss of electricity)?
> No. Big german city ...
Will the same file fail at the same spot every time, or is there a random element to it?
> Converting on the fly from TV: stops exactly after 1 hour - everytime. Aborts with error. If the task can be done under one hour: no problems.
> Converting offline: Every file (tested with 7 GB and 60 GB) stops at 4.718.593 KB. No error message: Either success message or nothing happens after this point. Have to cancel the task by myself then.
Do you have some antivirus/firewall-product running with some hourly scan?
> Avira installed but stopped
> Windows Firewall running.
Will your OTHER computer stop at the same place?
> No other computer available!

i think there are two bugs:
First: the server (TV) disconnects after one hour of downloading.
Second: File size limitation (4.X GB) during converting offline.

[zoelechat]

I remember somebody else already had the "1 hour issue" and disabling Windows firewall did the job: viewtopic.php?f=63&t=6511&p=58462#p58462
Funny that 4,718,593 KB is exactly 4.5GiB, maybe a clue? (or not )

[1qay2wsx3edc]

@zoelechat:
Thank you for your hint. I deactivated the Windows firewall as well - the problem remained ...

[zoelechat]

Anyway, even if whole FTP transfer could be successful, PVRdecoder next behaves exactly as offline decoding (SRF and KEY are transfered locally then DRMdecrypt-ed) so it might surely stop on decrypting as well.
Next question is: Can you completely decrypt online a recording of more than 4,718,593 KB size in less than one hour of transfer?
Then, it would be really necessary to try on another computer to investigate the issue (why not at least a virtual machine?). Btw what is your Windows version?

ps: are the .KEY files 16 bytes size?

[Lordbyte]

Please try a very large FTP-transfer .. using a 3rd party FTP-client ... Filezilla, or whatever ...
Will that also disconnect after 1 hour ?

Can you copy ANY file larger than 4.5GiB to your target-device ?
If a device refuses to accept files larger than this, it normally means that device is formatted using FAT.
That wont work. Reformat using NTFS.

Check your machine for running scripts that may do "funny stuff" (Control Panel -> Administrative tools -> Task Scheduler)
Funny thing is that I often see such tasks scheduled for once pr hour

[1qay2wsx3edc]

@zoelechat: Online decoding > 4.7 GB and < 1 hour is working:

Code: Select all

00:37:05: Kopiere DRMDecrypt in den Arbeitsordner.
00:37:05: Lade 20140601223001.key vom TV.
00:37:05: Lade 20140601223001.inf vom TV.
00:50:23: Lade 8,29 Gb von 8,29 Gb ..
00:50:23: DRMDecrypt aufgabe:  20140601223001.srf ---> 2014.06.02_00h30_Das Erste HD - The Guard - Ein Ire sieht schwarz.ts
00:51:42: DRMDecrypt meldet: 8,29 Gb von 8,29 Gb dekodiert.
00:51:42: L?sche M:\tmp\20140601223001.key
00:51:42: L?sche M:\tmp\20140601223001.srf
00:51:42: L?sche DRMDecrypt aus dem Arbeitsordner.
00:51:43: Alle Aufnahmen auf dem USB-Ger?t geladen. Warte auf Benutzer.
00:51:44: Aufgabe ist beendet. Warte auf Benutzer.

Key-Files are 16 bytes.

freshly installed Windows 8.1

[zoelechat]

Very strange... Could you try to manually decrypt your big recordings offline using drmdecrypt commandline?
(if possible, use the same source/destination paths you're using in PVRdecoder offline mode)

drmdecrypt-v1.1.zip

Code: Select all

Usage: drmdecrypt [-hw] in.srf in.key out.ts

[1qay2wsx3edc]

@Lordbyte: Used Filezille for downloading the 60 GB File: Same here - Disconnects after 1 hour. So i guess this is a Samsung-FTP-Server-"Feature"!

Code: Select all

01:58:23	Antwort:	421 Timeout
01:58:23	Fehler:	Dateitransfer fehlgeschlagen nach ?bertragung von 40.474.202.280 Bytes in 3600 Sekunden
01:58:23	Fehler:	Verbindung vom Server geschlossen

The Target Device is NTFS and it has 60 GB Files on it.

There are no other tasks running wich can generate this problem. The 3600 seconds problem seems to come from the TV-FTP-Server.

@zoelechat: The result with the commandline is as follows:

Code: Select all

M:\>drmdecrypt.exe -hw M:\PVR\20140608160005.srf M:\PVR\20140608160005.key M:\Decode\out.ts
===============================================================================
    SamyGO - Samsung LED TV PVR Recording Decrypt (Denny@samygo)
    auto AF decryption, LFS, hw aes, unicode (bugficks@samygo)
    v1.1

Using HW decryption.
Decrypting 'M:\PVR\20140608160005.srf' to 'M:\Decode\out.ts'
   4940890228 100%

at 4940890228 bytes the percentage jumps to 100%!


Thank you very much so far for your proposed solutions

[zoelechat]

At least we know that problems are not at PVRdecoder level, but FTP and DRMdecrypt

> Converting offline: Every file (tested with 7 GB and 60 GB) stops at 4.718.593 KB

Could you try to decrypt this 7GB file online and the following offline? (just the opposite of what you already did)

Code: Select all

00:50:23: Lade 8,29 Gb von 8,29 Gb ..
00:50:23: DRMDecrypt aufgabe:  20140601223001.srf ---> 2014.06.02_00h30_Das Erste HD - The Guard - Ein Ire sieht schwarz.ts

Also what is your TV model (and firmware)?