Revisiting MPlayers PostProcessing filter
Alexander E. Patrakov
patrakov at ums.usu.ru
Sat Dec 25 06:49:53 PST 2004
Randy McMurchy wrote:
> Hi all,
> Merry Christmas!
> Here is a bug which prompted a change to the MPlayer instructions
> to pull out the creation and installation of the shared postprocessing
> ==============Begin Bug================
> Summary: --enable-shared-pp should not be used.
> Product: Beyond LinuxFromScratch
> Version: SVN
> Platform: PC
> URL: http://lfs.netservice-
> OS/Version: Linux
> Status: NEW
> Severity: minor
> Priority: P2
> Component: BOOK
> AssignedTo: blfs-book at linuxfromscratch.org
> ReportedBy: Reimar.Doeffinger at stud.uni-karlsruhe.de
> QAContact: blfs-book at linuxfromscratch.org
> I think there was a misunderstanding as to what --enable-shared-pp does.
> It just makes MPlayer compile and link to the postprocessing library
> dynamically instead of statically. The functionality will always be
> compiled in. As dynamic linking often causes problems, this switch should
> not be used. Also, it is recommended to install all codecs always into
> /usr/lib/codecs. Like this, it will also be recognized automatically and
> MPlayer will compile with codecs support, the --with-codecsdir is not
> necessary in that case. Would be nice if you could do these changes.
> ==============End Bug================
> I think users should be made aware of MPlayer's shared postprocessing
> library, mainly because it is looked for by other packages (transcode,
> FFDShow and others). Now I don't necessarily agree with the statement
> above "dynamic linking often causes problems", especially with MPlayer's
> postprocessing library. But I digress....
> I am updating BLFS to MPlayer-1.0pre6 and think that maybe I should put
> a blurb in the instructions that passing --enable-shared-pp is necessary
> to build the shared library, and then put optional instructions to build
> and install the library.
> What say the group?
I remember that VLC player doesn't like MPlayer's shared library and insists
in either not having it at all or using the one from ffmpeg.
Alexander E. Patrakov
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