[theora] conference talks

Fri Nov 10 12:08:01 PST 2006

Hi,

computer support reported that it was impossible for them to encode it
into theora ogg... this was the error:

[00000326] packetizer_copy packetizer debug: need dts > 0
*** glibc detected *** vlc: double free or corruption (fasttop): 0xb395e1a0 ***
======= Backtrace: =========
/lib/libc.so.6[0xb7d15cb0]
/lib/libc.so.6(__libc_free+0x84)[0xb7d172f4]
vlc[0x808ee75]
======= Memory map: ========
08048000-0815e000 r-xp 00000000 08:03 458570     /usr/bin/vlc
0815e000-08167000 rw-p 00115000 08:03 458570     /usr/bin/vlc
08167000-08932000 rw-p 08167000 00:00 0          [heap]
b07b7000-b08cf000 rw-p b07b7000 00:00 0
b08cf000-b0900000 ---p b08cf000 00:00 0
b093b000-b1100000 rw-p b093b000 00:00 0
b1147000-b2448000 rw-p b1147000 00:00 0
b2448000-b24ec000 r-xp 00000000 08:03 296518     /usr/lib/libmp4v2.so.0.0.0
b24ec000-b24f0000 rw-p 000a3000 08:03 296518     /usr/lib/libmp4v2.so.0.0.0
b24f0000-b24f8000 r-xp 00000000 08:03 377326     /usr/lib/libpostproc.so.51.9.0
b24f8000-b24f9000 rw-p 00008000 08:03 377326     /usr/lib/libpostproc.so.51.9.0
b24f9000-b2506000 r-xp 00000000 08:03 295645     /usr/lib/libfaac.so.0.0.0
b2506000-b2509000 rw-p 0000d000 08:03 295645     /usr/lib/libfaac.so.0.0.0
b2509000-b2588000 r-xp 00000000 08:03 360702     /usr/lib/libx264.so.47
b2588000-b2589000 rw-p 0007e000 08:03 360702     /usr/lib/libx264.so.47
b2589000-b258d000 rw-p b2589000 00:00 0
b258d000-b2593000 r-xp 00000000 08:03 295586     /usr/lib/libdts.so.0.0.0
b2593000-b25b0000 rw-p 00006000 08:03 295586     /usr/lib/libdts.so.0.0.0
b25b0000-b264b000 r-xp 00000000 08:03 295998     /usr/lib/libxvidcore.so.4.1
b264b000-b264c000 rw-p 0009b000 08:03 295998     /usr/lib/libxvidcore.so.4.1
b264c000-b26bf000 rw-p b264c000 00:00 0
b26bf000-b2700000 r-xp 00000000 08:03 295756     /usr/lib/libmp3lame.so.0.0.0
b2700000-b2702000 rw-p 00040000 08:03 295756     /usr/lib/libmp3lame.so.0.0.0
b2702000-b2756000 rw-p b2702000 00:00 0
b2756000-b29f2000 r-xp 00000000 08:03 377320     /usr/lib/libavcodec.so.51.9.0
b29f2000-b29fe000 rw-p 0029b000 08:03 377320     /usr/lib/libavcodec.so.51.9.0
b29fe000-b2a61000 rw-p b29fe000 00:00 0
b2a61000-b2ac1000 r-xp 00000000 08:03 377323     /usr/lib/libavformat.so.50.4.0
b2ac1000-b2ac5000 rw-p 00060000 08:03 377323     /usr/lib/libavformat.so.50.4.0
b2ac5000-b2afb000 r-xp 00000000 08:03 280280     /usr/lib/libfaad.so.0.0.0
b2afb000-b2afe000 rw-p 00036000 08:03 280280     /usr/lib/libfaad.so.0.0.0
b2afe000-b2b1a000 r-xp 00000000 08:03 360421     /usr/lib/libmpeg2.so.0.0.0
b2b1a000-b2b1b000 rw-p 0001b000 08:03 360421     /usr/lib/libmpeg2.so.0.0.0
b2b1b000-b2b1d000 rw-p b2b1b000 00:00 0
b2b1d000-b2b28000 r-xp 00000000 08:03 199556     /usr/lib/libvorbisenc.so.2.0.0
b2b28000-b2c17000 rw-p 0000a000 08:03 199556     /usr/lib/libvorbisenc.so.2.0.0
b2c17000-b381a000 rw-p b2c17000 00:00 0
b381a000-b381d000 r-xp 00000000 08:03 253032
/usr/lib/vlc/access/libaccess_file_plugin.so
b381d000-b381e000 rw-p 00002000 08:03 253032
/usr/lib/vlc/access/libaccess_file_plugin.so
b3839000-b3848000 r-xp 00000000 08:03 458414
/usr/lib/vlc/codec/libffmpeg_plugin.so
b3848000-b384b000 rw-p 0000e000 08:03 458414
/usr/lib/vlc/codec/libffmpeg_plugin.so
b384b000-b3854000 r-xp 00000000 08:03 392122
/usr/lib/libSDL_image-1.2.so.0.1.2
b3854000-b3855000 rw-p 00008000 08:03 392122
/usr/lib/libSDL_image-1.2.so.0.1.2
b3855000-b3865000 rw-p b3855000 00:00 0
b3866000-b3869000 r-xp 00000000 08:03 377319     /usr/lib/libavutil.so.49.0.0
b3869000-b386a000 rw-p 00002000 08:03 377319     /usr/lib/libavutil.so.49.0.0
b386a000-b386c000 r-xp 00000000 08:03 458430
/usr/lib/vlc/codec/libfaad_plugin.so
b386c000-b386d000 rw-p 00001000 08:03 458430
/usr/lib/vlc/codec/libfaad_plugin.so
b386d000-b3872000 r-xp 00000000 08:03 458421
/usr/lib/vlc/codec/libaraw_plugin.so
b3872000-b3873000 rw-p 00004000 08:03 458421
/usr/lib/vlc/codec/libaraw_plugin.so
b3873000-b3876000 r-xp 00000000 08:03 458417
/usr/lib/vlc/codec/libcinepak_plugin.so
b3876000-b3877000 rw-p 00002000 08:03 458417
/usr/lib/vlc/codec/libcinepak_plugin.so
b3877000-b387a000 r-xp 00000000 08:03 458426
/usr/lib/vlc/codec/liblibmpeg2_plugin.so
b387a000-b387b000 rw-p 00002000 08:03 458426
/usr/lib/vlc/codec/liblibmpeg2_plugin.so
b387b000-b387d000 r-xp 00000000 08:03 458436     /usr/liAborted

Any idea of what was their problem?

Cheers,

Pau

2006/10/21, Ralph Giles <giles at xiph.org>:
> On Sat, Oct 21, 2006 at 01:15:53PM +0200, Pau Amaro-Seoane wrote:
>
> > I imagine the guys of comp. support have never done this. I am trying to
> > make a precedent for the next conferences :)
>
> ffmpeg2theora is a good tool to use and broadly portable:
>
>   http://v2v.cc/~j/ffmpeg2theora/
>
> If your source is DV, the kino editing application can export through
> ffmpeg2theora if you have both installed.
>
> On Gnome systems, the pitivi video editor is another convenient way to
> make theora videos, but you need a very recent version of the gstreamer
> framework (0.10.10 or later iirc) to avoid some multiplexing bugs.
>
> HTH,
>  -r
>