Autarchy of the Private Cave

Tiny bits of bioinformatics, [web-]programming etc

    Archive for June, 2007

    libmp3lame.so.0 (slackware, lame-3.97)

    30th June 2007

    Update: if you were looking for a downloadable libmp3lame.so.0, then go here or here.

    Today I compiled ffmpeg with –enable-libmp3lame. Of course, first I downloaded, compiled and installed lame (libmp3lame) itself. However, after doing make install for ffmpeg, and then running ffmpeg produced an error:

    ffmpeg: error while loading shared libraries: libmp3lame.so.0: cannot open shared object file: No such file or directory

    I looked for libmp3lame.so and found one in /usr/local/lib (evidently, ffmpeg couldn’t see it there; ffmpeg was searching for libmp3lame.so.0 in /usr/lib/, not in /usr/local/lib/). It was clear that /usr/local/lib/libmp3lame.so is a symlink to /usr/local/lib/libmp3lame.so.0.0.0. So all I had to do was making one more symlink in /usr/lib/, pointing at /usr/local/lib/libmp3lame.so.0.0.0:

    ln -s /usr/local/lib/libmp3lame.so.0.0.0 /usr/lib/libmp3lame.so.0

    After this, ffmpeg ran without any problems.

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    Posted in *nix, Software | 8 Comments »

    Compiled linux ffmpeg binary for Gallery2: download

    28th June 2007

    Updated on Apr 8, 2008.

    Stimulated by the post of Eric Daniel (who used to have a blog at termitenshort.com), I compiled the most recent ffmpeg SVN source into Linux binary, which runs fine on my shared hosting (note: I’m using older ffmpeg binaries, which are at the end of the post).

    mini-FAQ:
    Q: Why the title has “for Gallery2″?
    A: Just because I avoided the inclusion of libraries, which were not found on my shared hosting server. I hope this will work for other shared hosting environments.

    Configuration, version and date can be found in the output of ffmpeg.

    Versions built on April, 8, 2008:
    ffmpeg (no lame) (checked: can be executed on godaddy shared hosting)

    FFmpeg version SVN-r12769, Copyright (c) 2000-2008 Fabrice Bellard, et al.
    configuration: –enable-gpl –enable-postproc –enable-swscale –enable-pthreads –disable-debug –enable-gray –disable-ffserver –disable-ffplay –enable-avfilter –disable-network –disable-ipv6
    libavutil version: 49.6.0
    libavcodec version: 51.54.0
    libavformat version: 52.13.0
    libavdevice version: 52.0.0
    libavfilter version: 0.0.0
    built on Apr 8 2008 15:13:14, gcc: 4.1.2 20061115 (prerelease) (Debian 4.1.1-21)
    usage: ffmpeg [[infile options] -i infile]… {[outfile options] outfile}…

    ffmpeg (with lame). For this one, grab libmp3lame.so.

    FFmpeg version SVN-r12769, Copyright (c) 2000-2008 Fabrice Bellard, et al.
    configuration: –enable-gpl –enable-postproc –enable-swscale –enable-pthreads –disable-debug –enable-gray –disable-ffserver –disable-ffplay –enable-avfilter –disable-network –disable-ipv6 –enable-libmp3lame
    libavutil version: 49.6.0
    libavcodec version: 51.54.0
    libavformat version: 52.13.0
    libavdevice version: 52.0.0
    libavfilter version: 0.0.0
    built on Apr 8 2008 15:44:31, gcc: 4.1.2 20061115 (prerelease) (Debian 4.1.1-21)

    Based on single request: ffmpeg (with lame and libfaac and libfaad). For this one, grab libfaac.so and libfaad.so.

    FFmpeg version SVN-r12769, Copyright (c) 2000-2008 Fabrice Bellard, et al.
    configuration: –enable-gpl –enable-postproc –enable-swscale –enable-pthreads –disable-debug –enable-gray –disable-ffserver –disable-ffplay –enable-avfilter –disable-network –disable-ipv6 –enable-libmp3lame –enable-libfaac –enable-libfaad
    libavutil version: 49.6.0
    libavcodec version: 51.54.0
    libavformat version: 52.13.0
    libavdevice version: 52.0.0
    libavfilter version: 0.0.0
    built on Apr 8 2008 23:53:57, gcc: 4.1.2 20061115 (prerelease) (Debian 4.1.1-21)

    As an experiment, here’s ffmpeg freebsd binary without lame support. Did ran on some FreeBSD 6.3 hosting.

    FFmpeg version SVN-r12769, Copyright (c) 2000-2008 Fabrice Bellard, et al.
    configuration: –enable-gpl –enable-postproc –enable-swscale –enable-pthreads –disable-debug –enable-gray –disable-ffserver –disable-ffplay –enable-avfilter –disable-network –disable-ipv6 –target-os=freebsd
    libavutil version: 49.6.0
    libavcodec version: 51.54.0
    libavformat version: 52.13.0
    libavdevice version: 52.0.0
    libavfilter version: 0.0.0
    built on Apr 8 2008 16:15:38, gcc: 4.1.2 20061115 (prerelease) (Debian 4.1.1-21)

    Versions built on Ocotber, 28, 2007:
    download ffmpeg without libmp3lame support

    FFmpeg version SVN-r10867, Copyright (c) 2000-2007 Fabrice Bellard, et al.
    configuration: –enable-gpl –enable-pp –enable-swscaler –enable-pthreads

    –enable-libogg –enable-libvorbis –disable-debug
    libavutil version: 49.5.0
    libavcodec version: 51.47.1
    libavformat version: 51.17.0
    built on Oct 28 2007 22:46:10, gcc: 3.4.6

    download ffmpeg with libmp3lame support

    FFmpeg version SVN-r10867, Copyright (c) 2000-2007 Fabrice Bellard, et al.
    configuration: –enable-gpl –enable-pp –enable-swscaler –enable-libmp3lame

    –enable-pthreads –enable-libogg –enable-libvorbis –disable-debug
    libavutil version: 49.5.0
    libavcodec version: 51.47.1
    libavformat version: 51.17.0
    built on Oct 28 2007 23:04:59, gcc: 3.4.6

    Shared hosting testing reports are welcome.

    Below you can find even older versions of ffmpeg, which were tested and found functional on GoDaddy shared hosting.
    Read the rest of this entry »

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    Posted in *nix, CMS, Software, Web | 49 Comments »

    Practical Artificial Intelligence (AI)

    25th June 2007

    Googling for “practical artificial intelligence” gives only two (somewhat) relevant links:

    Looks like it isn’t widely acknowledged, that AI is, in fact, quite widely used. Though primarily in OCR, TTS, STT :), and NLP (including machine translation).

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    Posted in Artificial Intelligence, Links, Programming, Science | 5 Comments »

    Check rw-mounted linux filesystem without reboot

    25th June 2007

    If you happen to need to check your linux filesystem, which is mounted read-write, and for some reason you do not want to reboot, then the simple sequence of commands listed below should help you. Note, that the commands provided put you into single-user mode, which kills web-server and mysql daemon.

    So, running e2fsck on a live (mounted) filesystem isn’t recommended – and f2sck asks if you really want to check the rw-mounted FS (be sure to answer ‘n’o). If the FS you want to check is root (/), you cannot also re-mount it read-only – unless first you go to single-user mode:

    init 1

    Now you can re-mount your FS read-only:

    mount -o ro,remount /dev/cobd0

    (/dev/cobd0 is my device, replace it for your device when repeating step-by-step).
    Filesystem is now read-only, and it’s safe to run e2fsck:

    e2fsck -D -C 0 -f -t -v /dev/cobd0

    e2fsck options are optional:
    -D: optimize directory structure
    -C 0: show progress
    -f: force check (use if you get “volume is clean” with no check)
    -t: e2fsck timing statistics
    -v: verbose mode

    Finally, return to your previous user mode:

    init 3

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    Posted in *nix, Notepad, OS | No Comments »

    GeneDoc: DNA editing, alignment, analyser and shading software

    25th June 2007

    Full Featured Multiple Sequence Alignment Editor, Analyser and Shading Utility for Windows.

    Small and convenient. Can do sequence alignments (I recommend to limit the length to 2kb for alignments).

    Latest version I found: updated July, 2001, GeneDoc version # 2.6.02.

    Drawback: windows only (but has GNU-licence sources).

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    Posted in Bioinformatics, Science, Software | 2 Comments »

    HIV is not the cause of AIDS?

    24th June 2007

    I added a new video to my Conspiracy theory in gallery.

    I am an advocate of the official position: that is, HIV causes AIDS. In the movie description, I put my comments which dis-approve the point set and mentioned in that movie. I would strongly recommend that you stick to the official position in everything that is related to your health!

    And now, with all the warnings, you may want to see it (326 MiB):
    Read the rest of this entry »

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    Posted in Misc, Science, Society | No Comments »