[PC] DeSTRoi - PVR Content Decrypting (only for C/D series)

[Hassan]

@ gooseye and merilix (or everybody else who feels up to it)
It would be great if you could merge all the fixes found so far into the commandline version of drmdecrypt and make a build for Windows and Linux (or at least provide source code which compiles under these OS's)

I'd be especially interested in a Linux version if you could also implement a switch to tell drmdecrypt where to write the decrypted *.ts file (while automatically reading key from .mdb file). This would allow to directly read the encrypted file from the XFS partition in Linux and decrypt onto an NTFS partition so it can be played in Windows. This would speed up the whole process a lot!

drmdecrypt could be used easily with a Linux Live CD (or even easier with a bootable USB stick).

I very agree with you. XFS file system support with DeSTRoi would be very useful and "This would speed up the whole process a lot".

[Mack]

Good softwer DeSTRoi 1.3.1, works fine with larger file, but have problems with subtitles.
Samsung TV recorded subs well, i see on ext. disk, but when i use Decrypt tools, then gone.

Can anyone help?

THX

[GreenEyedAndy]

First of all - great job! This is exactly what I'm searching for, since I got knowlegde of this DRM-Sh*t.

I have a UE40D7090 with FW1021. On some of my file the decrypting works fine and on others I can see the first picture but the video isn't running.
I tried all possibilities: MDB w/wo AF and DRMGet w/wo AF. Nothing works for these files.

Any hint?

[nobody]

seems to be an issue with adoption field.

Code: Select all

if(data[3]&0x20)
		offset += (data[4] +1);      // skip adaption field
	outdata[3]&=0x3f;                 // remove scrambling bits
	if(offset > TS_FRAME_SIZE)//application will crash withotu this check when file is corrupted
	{
		printf ("\nInvalid data @ %13I64u\n", dec_count);
		offset = TS_FRAME_SIZE;
	}

seems like adoption field is also encrypted by your tv but im not sure if this is always the case on each samsung tv.
Thats very strange because ts packet standard clearly says, adoption field is not encrypted.
Ive never seen such exotic steams before

pls try attached test Version to check if its working for you.

DRMDecrypt_x64 works for 55D8000 recordings
DRMDecrypt_x64_TEST doesn't work.

[supernielsen]

I searched and searched and i hope this i the right topic.. I have a samsung UE40D6505 I have recorded some random to try..

Then i take the harddisk and plug into my pc, then i use ufc explorer and i take the srf file and copy to my desktop then i run DeSTRoi and decrypt with af on..

Know it just decrypt and left is a ts file, i should be able to watch ts but this is just blank. What am i doing wrong, i read somewhere in this topic that there is something about a key.. How do i find it ??

Sorry its the first time i ever tried anything like this, it was annoying enough to change med edid to get surround sound..

[NeoMoucha]

You have 2 options:
1) Copy the *.MDB file too and then use the option "Key Retrieval: MDB" in the DeSTRoi app.
2) Generate the *.KEY file inside TV for each recording manually with the DRMGET - you have to connect to TV via TELNET/SSH - procedure described in this thread, maybe not very clearly and consistently...
Also, I think with the DeSTRoi application, the method #2 is obsolete...

Method #2 I was using:
0. TV: samygo - drm on - play recording - stop
1. From Windows - ssh to Linux machine
2. telnet IP_TV 1023
3. /dtv/usb/sda1/drmget /dtv/usb/sda1/drm.key
4. copy drm.key and recording.srf via FTP from Windows machine
5. Windows: drmdecrypt

[supernielsen]

I know linux but the 1 option sounds best for me, i moved that file to and did what you said i am trying now.. Does you know wich program that can convert the mpeg2-ts file to avi ?

[NeoMoucha]

just about any program that can work with mpeg2 files - avidemux, virtualdubmod... and of course other not-freeware software
you can also demux it directly (using eac3to for example) and mux it to mkv again (mkvmerge) if you don't want to decrease it's size...

[supernielsen]

It works now i had to turn the adaption off.. And now i can play the video and make it avi.. Thank you for quick respons..

[NeoMoucha]

I found another small bug - when I select more than 1 file for download, after downloading all files, the table of files ready for decryption is empty, so you have to load them again from tmp folder.