[MPlayer-users] DVD decryption/access problems with latest libdvdcss

[Alexander Strasser]

Hi!

On 2014-12-25 16:31 -0500, Josh wrote:
> This is probably a pure libdvdcss bug but I wanted to try here first.
> Starting this commit in libdvdcss: http://git.videolan.org/?p=libdvdcss.git;a=commit;h=1b4e3f9e1c4e7b53cce59b802f95f6400ba641dd

  I have requested that commit to be reverted.

  You can read it in this thread. I sent 3 messages with detailed
analysis why that commit is wrong in multiple ways.

  https://mailman.videolan.org/pipermail/libdvdcss-devel/2014-November/thread.html#1505

  Seems I was ignored :(

> opening DVDs from disc doesn't work at all. By the log, for some reason it
> thinks the DVDs aren't encrypted even though they are.

  For DVDs in the drive, the behaviour is the other way around since
that commit. It tries to decrypt them even if they are not encrypted.
That does not result in fatal failure, but is at least strange.

  If I find the time, I will try to reproduce your case tomorrow.
If I do not reply soon, it might be a good idea if you go ahead
and report to the libdvdcss mailing list.

  Alexander

> I have DVDCSS_CACHE OFF but even if enabled and after using a good
> mplayer/dvdcss build then trying the bad mplayer/dvdcss build results in
> severe video corruption and "libdvdcss error: no key but found encrypted
> block".
> 
> MPlayer Redxii-SVN-r37343-4.9.2 (x86_64) (C) 2000-2014 MPlayer Team
> FFmpeg version: N-68680-g0c0168a
> Build date: 2014-12-25 15:43:51 EST
> CPU vendor name: GenuineIntel  max cpuid level: 13
> CPU: Intel(R) Core(TM) i7-2600K CPU @ 3.40GHz (Family: 6, Model: 42,
> Stepping: 7)
> extended cpuid-level: 8
> extended cache-info: 16801856
> Detected cache-line size is 64 bytes
> CPUflags:  MMX: 1 MMX2: 1 3DNow: 0 3DNowExt: 0 SSE: 1 SSE2: 1 SSE3: 1 SSSE3:
> 1 SSE4: 1 SSE4.2: 1 AVX: 1
> Compiled with runtime CPU detection.
> get_path('codecs.conf') ->
> 'F:/Programs/SMPlayer/mplayer/mplayer/codecs.conf'
> Reading optional codecs config file
> F:/Programs/SMPlayer/mplayer/mplayer/codecs.conf: No such file or directory
> Using built-in default codecs.conf.
> init_freetype
> Using MMX (with tiny bit MMX2) Optimized OnScreenDisplay
> get_path('fonts') -> 'F:/Programs/SMPlayer/mplayer/mplayer/fonts'
> Configuration: --enable-static --enable-runtime-cpudetection --enable-menu
> --disable-inet6 --disable-liba52 --disable-libmpeg2-internal --disable-tv
> --disable-v
> idix --disable-faac-lavc --extra-cflags=-I/sources/live555-x64
> --disable-mencoder
> CommandLine: '-vo' 'direct3d' '-v' '-dvd-device' 'H:' 'dvd://1'
> Using Windows native timing
> get_path('input.conf') -> 'F:/Programs/SMPlayer/mplayer/mplayer/input.conf'
> Parsing input config file F:/Programs/SMPlayer/mplayer/mplayer/input.conf
> Input config file F:/Programs/SMPlayer/mplayer/mplayer/input.conf parsed: 92
> binds
>         Scanning dir C:/Windows/fonts
> get_path('1.conf') -> 'F:/Programs/SMPlayer/mplayer/mplayer/1.conf'
> 
> Playing dvd://1.
> get_path('sub/') -> 'F:/Programs/SMPlayer/mplayer/mplayer/sub/'
> WINSOCK2 init: 0
> URL: dvd://1
> libdvdcss debug: opening target `H:'
> libdvdcss debug: using Win2K API for access
> libdvdcss error: failed creating cache directory
> Reading disc structure, please wait...
> There are 1 titles on this DVD.
> There are 1 angles in this DVD title.
> 
> libdvdread: Attempting to retrieve all CSS keys
> libdvdread: This can take a _long_ time, please be patient
> 
> libdvdread: Get key for /VIDEO_TS/VIDEO_TS.VOB at 0x00000124
> libdvdcss debug: cracking title key at block 292
> libdvdcss debug: read error at block 293, resorting to secret arcanes to
> recover
> libdvdcss debug: opening target `H:'
> libdvdcss debug: using Win2K API for access
> libdvdcss debug: end of title reached
> libdvdcss debug: successful attempts 0/0, scrambled blocks 0/1
> libdvdcss debug: no scrambled sectors found
> libdvdcss debug: title key is 00:00:00:00:00
> libdvdcss debug: unencrypted title
> libdvdread: Elapsed time 0
> libdvdread: Get key for /VIDEO_TS/VTS_01_0.VOB at 0x000009d9
> libdvdcss debug: cracking title key at block 2521
> libdvdcss debug: read error at block 2522, resorting to secret arcanes to
> recover
> libdvdcss debug: opening target `H:'
> libdvdcss debug: using Win2K API for access
> libdvdcss debug: end of title reached
> libdvdcss debug: successful attempts 0/0, scrambled blocks 0/1
> libdvdcss debug: no scrambled sectors found
> libdvdcss debug: title key is 00:00:00:00:00
> libdvdcss debug: unencrypted title
> libdvdread: Elapsed time 0
> libdvdread: Get key for /VIDEO_TS/VTS_01_1.VOB at 0x0000ed1f
> libdvdcss debug: cracking title key at block 60703
> libdvdcss debug: read error at block 60704, resorting to secret arcanes to
> recover
> libdvdcss debug: opening target `H:'
> libdvdcss debug: using Win2K API for access
> libdvdcss debug: end of title reached
> libdvdcss debug: successful attempts 0/0, scrambled blocks 0/1
> libdvdcss debug: no scrambled sectors found
> libdvdcss debug: title key is 00:00:00:00:00
> libdvdcss debug: unencrypted title
> libdvdread: Elapsed time 0
> libdvdread: Found 1 VTS's
> libdvdread: Elapsed time 0
> 
> DVD successfully opened.
> audio stream: 0 format: ac3 (5.1) language: en aid: 128.
> audio stream: 1 format: ac3 (stereo) language: fr aid: 129.
> number of audio channels on disk: 2.
> subtitle ( sid ): 0 language: en
> subtitle ( sid ): 1 language: es
> number of subtitles on disk: 2
> 
> DVD start cell: 0  pack: 0x0-0x2437
> DVD start=0 end=2140243
> STREAM: [null] dvd://1
> STREAM: Description: DVD stream
> STREAM: Author:
> STREAM: Comment:
> DVD Seek! lba=0x0  cell=0  packs: 0x0-0x2437
> Angle-seek synced by cell/vob IDN search!
> MPEG Stream reached EOF
> MPEG packet stats: p100: 0  p101: 0 p1B6: 0 p12x: 0 sli: 0 a: 0 b: 0 c: 0
> idr: 0 sps: 0 pps: 0 PES: 0  MP3: 0, synced: 0
> Not MPEG System Stream format... (maybe Transport Stream?)
> 
> WINSOCK2 uninit
> 
> Exiting... (End of file)
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