Discussion:
[libdvdcss-devel] CPPM/CPRM
Jan-willem De Bleser
2010-01-26 16:43:32 UTC
Permalink
Hi,

Is there any work being done here on adding cppm/cprm support to
libdvdcss for DVD Audio playback? I've heard that the SVN version of
VLC supports MLP (used in DVD Audio) as a file type, but what about
encrypted discs?

I'm asking because I've been working on porting libdvdcpxm to linux.
It's very similar in structure to libdvdcss so there's not much work
to be done, but it also wouldn't fit as is into libdvdread because it
requires both ioctls (for the disc key) and an on-disc file (the
master key block or something) to determine the decryption key. I've
been trying to decide whether to leave it as a separate library
copying the libdvdcss bits I need, or whether to try and patch it into
libdvdcss. Any thoughts?

Cheers,
Jw
Sam Hocevar
2010-05-23 21:40:47 UTC
Permalink
Post by Jan-willem De Bleser
Is there any work being done here on adding cppm/cprm support to
libdvdcss for DVD Audio playback? I've heard that the SVN version of
VLC supports MLP (used in DVD Audio) as a file type, but what about
encrypted discs?
I'm asking because I've been working on porting libdvdcpxm to linux.
It's very similar in structure to libdvdcss so there's not much work
to be done, but it also wouldn't fit as is into libdvdread because it
requires both ioctls (for the disc key) and an on-disc file (the
master key block or something) to determine the decryption key. I've
been trying to decide whether to leave it as a separate library
copying the libdvdcss bits I need, or whether to try and patch it into
libdvdcss. Any thoughts?
There are no immediate plans to add such support to libdvdcss, but if
you come up with patches for libdvdcss, we can work together to merge
them as well as possible.

Cheers,
--
Sam.
Jan-willem De Bleser
2010-05-27 12:50:43 UTC
Permalink
Post by Jan-willem De Bleser
Is there any work being done here on adding cppm/cprm support to
libdvdcss for DVD Audio playback? I've heard that the SVN version of
VLC supports MLP (used in DVD Audio) as a file type, but what about
encrypted discs?
I'm asking because I've been working on porting libdvdcpxm to linux.
It's very similar in structure to libdvdcss so there's not much work
to be done, but it also wouldn't fit as is into libdvdread because it
requires both ioctls (for the disc key) and an on-disc file (the
master key block or something) to determine the decryption key. I've
been trying to decide whether to leave it as a separate library
copying the libdvdcss bits I need, or whether to try and patch it into
libdvdcss. Any thoughts?
  There are no immediate plans to add such support to libdvdcss, but if
you come up with patches for libdvdcss, we can work together to merge
them as well as possible.
Cheers,
--
Sam.
I'll see what I can scrape together, then, and send some patches as
soon as I have something coherent.

- Jw

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