libmmbd issues

[belegdol]

Hi,

I seem to be unable to get libmmbd to work. makemkv itself is able to open my discs fine. When I try to use libmmbd, however, it fails. I have moved libmmbd.so.0 to /usr/lib64 and created libaacs.so.0 symlink. bd_info fails, and so do mplayer and vlc:

$ bd_info /dev/sr0
BluRay detected : yes
First Play supported: yes
Top menu supported : yes
HDMV titles : 100
BD-J titles : 0
UNSUPPORTED titles : 0

AACS detected : yes
libaacs detected : yes
Disc ID : 0000000000000000000000000000000000000000
AACS MKB version : 0
AACS handled : no
(corrupted BluRay disc)

BD+ detected : no

No disc library metadata

Am I doing something wrong? I am on Fedora 19 x86_64, which ships libcrypt and openssl without elliptic curves. Can this be the source of the problem? The "real" libaacs needed it.

[mike admin]

You can get libmmbd debug log. Please do

Code: Select all

MMBD_TRACE=1 bd_info /dev/sr0
MMBD_TRACE=1 vlc bluray:///dev/cdrom

[belegdol]

Please find the relevant output below. The temp files are nowhere to be found.

$ LANG=C MMBD_TRACE=1 bd_info /dev/sr0
MMBD: MakeMKV v1.8.5 linux(x64-release) started
MMBD: Debug logging enabled, log will be saved as /tmp/MakeMKV-0x4371-1.tmp
MMBD: Opening files on harddrive at /run/media/julas/STAR TREK TNG S1 D5
MMBD: The volume key is unknown for this disc - video can't be decrypted
MMBD: DEBUG: Code 0 at ]J2,2'1~> 3.Cjyz:121263544
MMBD: DEBUG: Code 0 at ]J2,2'1~> 3.Cjyz:121265223
MMBD: Failed to open disc
BluRay detected : yes
First Play supported: yes
Top menu supported : yes
HDMV titles : 100
BD-J titles : 0
UNSUPPORTED titles : 0

AACS detected : yes
libaacs detected : yes
Disc ID : 0000000000000000000000000000000000000000
AACS MKB version : 0
AACS handled : no
(corrupted BluRay disc)

BD+ detected : no

No disc library metadata

$ LANG=C MMBD_TRACE=1 cvlc bluray:///dev/sr0
VLC media player 2.0.8 Twoflower (revision 2.0.7-29-g12aebf9)
[0x1a24e78] dummy interface: using the dummy interface module...
MMBD: MakeMKV v1.8.5 linux(x64-release) started
MMBD: Debug logging enabled, log will be saved as /tmp/MakeMKV-0x446f-1.tmp
MMBD: Opening files on harddrive at /run/media/julas/STAR TREK TNG S1 D5
MMBD: The volume key is unknown for this disc - video can't be decrypted
MMBD: DEBUG: Code 0 at ]J2,2'1~> 3.Cjyz:121263544
MMBD: DEBUG: Code 0 at ]J2,2'1~> 3.Cjyz:121265223
MMBD: Failed to open disc
[0x7f29d400a008] libbluray demux: First play: 1, Top menu: 1
HDMV Titles: 100, BD-J Titles: 0, Other: 0
[0x7f29d400a008] main demux error: Blu-Ray error
[0x7f29d400a008] main demux error: BluRay Disc is corrupted.
[0x7f29cc000b28] main input error: open of `bluray:///dev/sr0' failed
[0x7f29cc000b28] main input error: Your input can't be opened
[0x7f29cc000b28] main input error: VLC is unable to open the MRL 'bluray:///dev/sr0'. Check the log for details.

[belegdol]

I went ahead and tried another bluray, season 6 of the big bang theory. Oddly enough, it works. This is the difference:

$ LANG=C MMBD_TRACE=1 bd_info /dev/sr0
MMBD: MakeMKV v1.8.5 linux(x64-release) started
MMBD: Debug logging enabled, log will be saved as /tmp/MakeMKV-0x1290-1.tmp
MMBD: Using direct disc access mode
MMBD: Operation successfully completed
BluRay detected : yes
First Play supported: no
Top menu supported : yes
HDMV titles : 18
BD-J titles : 2
UNSUPPORTED titles : 2

AACS detected : yes
libaacs detected : yes
Disc ID : B1F3C19C4344BAD5EA6C09D69A7C0FE2812E5AEF
AACS MKB version : 36
AACS handled : yes

BD+ detected : no

Disc library metadata:
Metadata file : bdmt_eng.xml
Language : eng
Disc name : The Big Bang Theory Season 6 Disc 2
Alternative : <undefined>
Disc # : <undefined>/<undefined>
TOC count : 0
Thumbnail count : 2
./Big_Bang_metadata416.jpg 416x240
./Big_Bang_metadata640.jpg 640x360

vs

$ LANG=C MMBD_TRACE=1 bd_info /dev/sr0
MMBD: MakeMKV v1.8.5 linux(x64-release) started
MMBD: Debug logging enabled, log will be saved as /tmp/MakeMKV-0x1992-1.tmp
MMBD: Opening files on harddrive at /run/media/julas/STAR TREK TNG S1 D1
MMBD: The volume key is unknown for this disc - video can't be decrypted
MMBD: DEBUG: Code 0 at ]J2,2'1~> 3.Cjyz:121263544
MMBD: DEBUG: Code 0 at ]J2,2'1~> 3.Cjyz:121265223
MMBD: Failed to open disc
BluRay detected : yes
First Play supported: yes
Top menu supported : yes
HDMV titles : 114
BD-J titles : 0
UNSUPPORTED titles : 0

AACS detected : yes
libaacs detected : yes
Disc ID : 0000000000000000000000000000000000000000
AACS MKB version : 0
AACS handled : no
(corrupted BluRay disc)

BD+ detected : no

No disc library metadata

Any ideas why it says "opening files on disc" for star trek tng but is using direct access for the big bang theory? Game of thrones season 2 also works and uses direct access:

$ LANG=C MMBD_TRACE=1 bd_info /dev/sr0
MMBD: MakeMKV v1.8.5 linux(x64-release) started
MMBD: Debug logging enabled, log will be saved as /tmp/MakeMKV-0x1a0c-1.tmp
MMBD: Using direct disc access mode
MMBD: Operation successfully completed
BluRay detected : yes
First Play supported: no
Top menu supported : no
HDMV titles : 2
BD-J titles : 79
UNSUPPORTED titles : 79

AACS detected : yes
libaacs detected : yes
Disc ID : 4666D015A9E76B020C4C5060C0621353C66254C0
AACS MKB version : 31
AACS handled : yes

BD+ detected : no

Disc library metadata:
Metadata file : bdmt_eng.xml
Language : eng
Disc name : Game Of Thrones Season 2 Disc 1
Alternative : Game Of Thrones Season 2 Disc 1
Disc # : 1/1
TOC count : 81
Title 1: Game Of Thrones Season 2 Disc 1
Title 2: Game Of Thrones Season 2 Disc 1
Title 3: Game Of Thrones Season 2 Disc 1
Title 4: Game Of Thrones Season 2 Disc 1
Title 5: Game Of Thrones Season 2 Disc 1
Title 6: Game Of Thrones Season 2 Disc 1
Title 7: Game Of Thrones Season 2 Disc 1
Title 8: Game Of Thrones Season 2 Disc 1
Title 9: Game Of Thrones Season 2 Disc 1
Title 10: Game Of Thrones Season 2 Disc 1
Title 11: Game Of Thrones Season 2 Disc 1
Title 12: Game Of Thrones Season 2 Disc 1
Title 13: Game Of Thrones Season 2 Disc 1
Title 14: Game Of Thrones Season 2 Disc 1
Title 15: Game Of Thrones Season 2 Disc 1
Title 16: Game Of Thrones Season 2 Disc 1
Title 17: Game Of Thrones Season 2 Disc 1
Title 18: Game Of Thrones Season 2 Disc 1
Title 19: Game Of Thrones Season 2 Disc 1
Title 20: Game Of Thrones Season 2 Disc 1
Title 21: Game Of Thrones Season 2 Disc 1
Title 22: Game Of Thrones Season 2 Disc 1
Title 23: Game Of Thrones Season 2 Disc 1
Title 24: Game Of Thrones Season 2 Disc 1
Title 25: Game Of Thrones Season 2 Disc 1
Title 26: Game Of Thrones Season 2 Disc 1
Title 27: Game Of Thrones Season 2 Disc 1
Title 28: Game Of Thrones Season 2 Disc 1
Title 29: Game Of Thrones Season 2 Disc 1
Title 30: Game Of Thrones Season 2 Disc 1
Title 31: Game Of Thrones Season 2 Disc 1
Title 32: Game Of Thrones Season 2 Disc 1
Title 33: Game Of Thrones Season 2 Disc 1
Title 34: Game Of Thrones Season 2 Disc 1
Title 35: Game Of Thrones Season 2 Disc 1
Title 36: Game Of Thrones Season 2 Disc 1
Title 37: Game Of Thrones Season 2 Disc 1
Title 38: Game Of Thrones Season 2 Disc 1
Title 39: Game Of Thrones Season 2 Disc 1
Title 40: Game Of Thrones Season 2 Disc 1
Title 41: Game Of Thrones Season 2 Disc 1
Title 42: Game Of Thrones Season 2 Disc 1
Title 43: Game Of Thrones Season 2 Disc 1
Title 44: Game Of Thrones Season 2 Disc 1
Title 45: Game Of Thrones Season 2 Disc 1
Title 46: Game Of Thrones Season 2 Disc 1
Title 47: Game Of Thrones Season 2 Disc 1
Title 48: Game Of Thrones Season 2 Disc 1
Title 49: Game Of Thrones Season 2 Disc 1
Title 50: Game Of Thrones Season 2 Disc 1
Title 51: Game Of Thrones Season 2 Disc 1
Title 52: Game Of Thrones Season 2 Disc 1
Title 53: Game Of Thrones Season 2 Disc 1
Title 54: Game Of Thrones Season 2 Disc 1
Title 55: Game Of Thrones Season 2 Disc 1
Title 56: Game Of Thrones Season 2 Disc 1
Title 57: Game Of Thrones Season 2 Disc 1
Title 58: Game Of Thrones Season 2 Disc 1
Title 59: Game Of Thrones Season 2 Disc 1
Title 60: Game Of Thrones Season 2 Disc 1
Title 61: Game Of Thrones Season 2 Disc 1
Title 62: Game Of Thrones Season 2 Disc 1
Title 63: Game Of Thrones Season 2 Disc 1
Title 64: Game Of Thrones Season 2 Disc 1
Title 65: Game Of Thrones Season 2 Disc 1
Title 66: Game Of Thrones Season 2 Disc 1
Title 67: Game Of Thrones Season 2 Disc 1
Title 68: Game Of Thrones Season 2 Disc 1
Title 69: Game Of Thrones Season 2 Disc 1
Title 70: Game Of Thrones Season 2 Disc 1
Title 71: Game Of Thrones Season 2 Disc 1
Title 72: Game Of Thrones Season 2 Disc 1
Title 73: Game Of Thrones Season 2 Disc 1
Title 74: Game Of Thrones Season 2 Disc 1
Title 75: Game Of Thrones Season 2 Disc 1
Title 76: Game Of Thrones Season 2 Disc 1
Title 77: Game Of Thrones Season 2 Disc 1
Title 78: Game Of Thrones Season 2 Disc 1
Title 79: Game Of Thrones Season 2 Disc 1
Title 80: Game Of Thrones Season 2 Disc 1
Title 81: Game Of Thrones Season 2 Disc 1
Thumbnail count : 2
GT2_metadata_416.jpg
GT2_metadata_640.jpg

[mike admin]

The application (vlc via libbluray) passes MakeMKV a full path to the disc, but MakemKV needs to know the device name to issue SCSI commands. For that it scans /proc/mounts to get this info. Apparently there is a bug in this code. Am I right that discs with a space in volume label are handled incorrectly? Can you please post the line from /proc/mounts for start trek? Also, please try unmounting the disc and mounting manually into /mnt or any other folder without spaces in the name.

[belegdol]

/proc/mounts for star trek:

/dev/sr0 /run/media/julas/STAR\040TREK\040TNG\040S1\040D5 udf ro,nosuid,nodev,relatime,uid=500,gid=500,umask=77,iocharset=utf8 0 0

Moreover, mounting the drive in ~/temp has allowed bd_info to work:

$ LANG=C MMBD_TRACE=1 bd_info /dev/sr0
MMBD: MakeMKV v1.8.5 linux(x64-release) started
MMBD: Debug logging enabled, log will be saved as /tmp/MakeMKV-0x1631-1.tmp
MMBD: Using direct disc access mode
MMBD: Operation successfully completed
BluRay detected : yes
First Play supported: yes
Top menu supported : yes
HDMV titles : 94
BD-J titles : 0
UNSUPPORTED titles : 0

AACS detected : yes
libaacs detected : yes
Disc ID : AA0E7EE6CBFC5C6D9D9CA68BA9217E50C490A1D6
AACS MKB version : 31
AACS handled : yes

BD+ detected : no

No disc library metadata

[mike admin]

Will be fixed in the next version, 1.8.6 . Meanwhile you have to use "manual mount" workaround. Thanks for finding the bug.

[belegdol]

Happy to help! Given that the latest 'known' key for libaacs is v25, I can't stress enough how brilliant idea libmmbd is