Bug 446552 – net-misc/mediatomb-0.12.1-r1 - Mediatomb launches the transcoder twice for a given file.

• Product: Gentoo Linux
• Status: RESOLVED OBSOLETE

[Description eipi 2012-12-08 23:33:51 UTC]

My Mediatomb config file has not changed for a while. I am using a transcode-all config file based on the one published here :

http://mediatomb.cc/dokuwiki/transcoding:transcoding

However, since mediatomb-0.12 at least, I noticed that after each movie watched 2 mencoder processes are launched on 2 different FIFOs. One of them transmit the actual transcoded video to the renderer (a PS3), but the other remains kernel-blocked, writing into a pipe for which no one is actually reading to (only a kill -KILL can kill it). Some traces are in attachment. As shown, two pipes are created for two processes, however only one process is killed...

I downloaded static binary version: mediatomb-static-0.11.0-r2-linux-uclibc-i386.tar.gz from the upstream web site. And this problem does not happened with this version.

I tried to debug (using ddd/gdb). However the multi-threading make the task too cumbersome for me. If you have any idea how I can help, please tell me so.

Regards.


Reproducible: Always

Steps to Reproduce:
1.emerge mediatomb-0.12.1-r1
2.use a transcode-all config file such as the one provided at http://mediatomb.cc/dokuwiki/transcoding:transcoding
3.Launch /etc/init.d/mediatomb start
4.Watch a media file (so transcoding happen)

Actual Results:  
4.ps aux|grep mencoder should list 2 mencoder processes
5.Stop watching the media file
6.ps aux|grep mencoder should list 1 mencoder process, you need a kill -KILL ta actually kill it (kernel blocked, writing to a FIFO with no reader).  

Expected Results:  
ps aux|grep mencoder should only list 1 mencoder process
The said process should be killed after watching the media file so no mencoder remains at the end.

Portage 2.1.11.31 (default/linux/x86/10.0/desktop/kde, gcc-4.5.4, glibc-2.15-r3, 3.5.7-gentoo i686)
=================================================================
System uname: Linux-3.5.7-gentoo-i686-Intel-R-_Core-TM-_i3-2310M_CPU_@_2.10GHz-with-gentoo-2.1
Timestamp of tree: Sat, 08 Dec 2012 02:00:01 +0000
ld GNU ld (GNU Binutils) 2.22
distcc 3.1 i686-pc-linux-gnu [enabled]
ccache version 3.1.8 [enabled]
app-shells/bash:          4.2_p37
dev-java/java-config:     2.1.11-r3
dev-lang/python:          2.7.3-r2, 3.2.3
dev-util/ccache:          3.1.8
dev-util/cmake:           2.8.9
dev-util/pkgconfig:       0.27.1
sys-apps/baselayout:      2.1-r1
sys-apps/openrc:          0.11.6
sys-apps/sandbox:         2.5
sys-devel/autoconf:       2.13, 2.68
sys-devel/automake:       1.9.6-r3, 1.11.6
sys-devel/binutils:       2.22-r1
sys-devel/gcc:            4.5.4
sys-devel/gcc-config:     1.7.3
sys-devel/libtool:        2.4-r1
sys-devel/make:           3.82-r3
sys-kernel/linux-headers: 3.6 (virtual/os-headers)
sys-libs/glibc:           2.15-r3
Repositories:

gentoo
    location: /mnt/portage/tree
    sync: rsync://gaia/gentoo-portage
    priority: -1000

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FETCHCOMMAND_SSH="bash -c "x=\${2#ssh://} ; host=\${x%%/*} ; port=\${host##*:} ; host=\${host%:*} ; [[ \${host} = \${port} ]] && port=22 ; exec rsync --rsh=\"ssh -p\${port}\" -avP \"\${host}:/\${x#*/}\" \"\$1\"" rsync "${DISTDIR}/${FILE}" "${URI}""
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[Comment 1 eipi 2012-12-08 23:36:54 UTC]

Created attachment 331844 [details]
Mediatomb log showing transcoding is launched two times for a single media file.

[Comment 2 Ian Whyman (thev00d00) (RETIRED) 2013-07-09 19:35:45 UTC]

I don't use the transcoding functionality, so I'm not going to be able to help here.

Have you tried raising the issue upstream?

Is this still an issue with the latest version?

[Comment 3 Ian Whyman (thev00d00) (RETIRED) 2014-02-06 21:43:13 UTC]

No response in ~7 months... closing.