[mythtv-users] BluRay setup problem

Frank Phillips frankalso at gmail.com
Wed Jul 20 01:20:46 UTC 2011


On Tue, Jul 19, 2011 at 4:39 PM, Ken Truesdale <kat at tiac.net> wrote:
> I've been following the wiki page on setting up for BluRay playback.
>
>
http://www.mythtv.org/wiki/Bluray#Watching_With_the_Internal_Player_.28recommended.29
>
> I've completed the setup including the git, compile, and install for
libaacs.  I've got aacskeys and compiled it and set up my KEYDB.cfg file
with the appropriate content from the aacskeys files.  I've confirmed that
aacskeys runs and that the BD I have in the drive is an AACS disc.
>
> I run the mythavtest command, the screen says Please Wait and then I get
back to the command line.  Scrolling back in the onscreen log, here's an
except of what I see:
>
> 2011-07-19 16:56:26.585 BDRingBuffer: Opened BDRingBuffer device at
/media/77151753_UNFORGIVEN
> 2011-07-19 16:56:26.587 BDRingBuffer: Using /home/kat/.mythtv/KEYDB.cfg as
keyfile...
> 2011-07-19 16:56:26.588 BDRingBuffer: Found 15 relevant titles.
> 2011-07-19 16:56:26.593 BDRingBuffer: Selected title: index 0. Duration:
705656200 (130 mins) Number of Chapters: 34 Number of Angle
> s: 1
> 2011-07-19 16:56:26.593 BDRingBuffer: Frame Rate: 23.97
> 2011-07-19 16:56:26.593 BDRingBuffer: Chapter 01 found @ [00:00:00.000]->0
> {snip 32 more chapters found}
> 2011-07-19 16:56:26.594 BDRingBuffer: Chapter 34 found @
[02:10:40.000]->187933
> 2011-07-19 16:56:26.594 TV: StartPlayer(0, WatchingBD, main) -- begin
> 2011-07-19 16:56:26.594 TV: Elapsed time since TV constructor was called:
261 ms
> 2011-07-19 16:56:26.836 Pulse: PulseAudio suspend OK
> 2011-07-19 16:56:26.891 Player(0), Error: Couldn't find an A/V decoder
for: '/media/77151753_UNFORGIVEN'

This last line means that the video is still encrypted. Since the BD is from
2006, it is decryptable. It is likely your KEYDB.cfg is in the wrong format.
Here is the format that I use:
| HC | HOST_PRIV_KEY 0x0000000000000000000000000000000000000000 \
     | HOST_CERT 0x000000000000000000000000000000000000000 \
                 0x000000000000000000000000000000000000000 \
                 0x000000000000000000000000000000000000000 \
                 0x000000000000000000000000000000000000000 \
                 0x0000000000000000000000000000 \
     | HOST_NONCE 0x0 \
     | HOST_KEY_POINT 0x0

| PK | 0x00000000000000000000000000000000 ; v1
| PK | 0x00000000000000000000000000000000 ; v3
| PK | 0x00000000000000000000000000000000 ; v4
| PK | 0x00000000000000000000000000000000 ; v6-8
| PK | 0x00000000000000000000000000000000 ; v9
| PK | 0x00000000000000000000000000000000 ; v10

See here for reference:
http://git.videolan.org/?p=libaacs.git;a=blob_plain;f=KEYDB.cfg;hb=HEAD
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