[mythtv-users] nuvexport fails to run anymore

Hugo van der Kooij hvdkooij at vanderkooij.org
Fri Jul 22 16:08:23 EDT 2005

When I try to run nuvexport to export some programs I get this error:

Where would you like to export the files to? [.]
Enable Myth cutlist? [Yes]
Enable noise reduction (slower, but better results)? [Yes]
Enable deinterlacing? [Yes]
Crop broadcast overscan (2% border)? [Yes]
Audio bitrate? [192]
VBR quality/quantisation (1-31)? [5]

Now encoding:  Star Trek: Voyager:  The swarm
Encode started:  Thu Jul 21 19:00:05 2005

Waiting for mythtranscode to set up the fifos.
Starting ffmpeg.
processed:  0 of 95916 frames (0.00%),   0.00 fps

ffmpeg had critical errors:

pipe:: Error while opening file

I noticed the commands itself seem to be called as I see a lot of CPU
activity and the following processes:

20129 pts/3    S+     0:00 /usr/bin/perl -w /usr/local/bin/nuvexport
20161 pts/3    S+     0:00 /usr/bin/perl -w /usr/local/bin/nuvexport
20162 pts/3    S+     0:00 sh -c /bin/nice -n19 mythtranscode --showprogress -p autodetect -c 8 -s 2005-06-11-18-03-00 -f "/tmp/fifodir_20129/" --honorcutlist 2>&1
20163 pts/3    RNl+   0:26 mythtranscode --showprogress -p autodetect -c 8 -s 2005-06-11-18-03-00 -f /tmp/fifodir_20129/ --honorcutlist
20171 pts/3    S+     0:00 /usr/bin/perl -w /usr/local/bin/nuvexport
20172 pts/3    S+     0:00 sh -c /bin/nice -n19 ffmpeg -f rawvideo -s 720x576 -r 25.000 -i /tmp/fifodir_20129/vidout -f yuv4mpegpipe - 2> /dev/null | /bin/nice -n19 yuvdenoise -r 16 -f -b 14,12,-14,-12 2> /dev/null | /bin/nice -n19 ffmpeg -hq -y -f s16le -ar 48000 -ac 2 -i /tmp/fifodir_20129/audout -f yuv4mpegpipe -s 720x576 -aspect 1.3333 -r 25.000 -i - -aspect 1.3333 -r 25 -deinterlace -croptop 12 -cropbottom 12 -cropleft 14 -cropright 14 -s 480x576  -b 2500 -vcodec mpeg2video -qmin 5 -ab 192 -ar 44100 -acodec mp2 -f svcd "./Star Trek- Voyager - The swarm.mpg" 2>&1
20173 pts/3    SN+    0:07 ffmpeg -f rawvideo -s 720x576 -r 25.000 -i /tmp/fifodir_20129/vidout -f yuv4mpegpipe -

The named pipes seem to be there:

# ls -la|more
total 24
drwxr-xr-x   2 mythtv mythtv 4096 Jul 22 22:00 .
drwxrwxrwt  16 root   root   4096 Jul 22 22:04 ..
prw-r--r--   1 mythtv mythtv    0 Jul 22 22:00 audout
prw-r--r--   1 mythtv mythtv    0 Jul 22 22:04 vidout
# pwd

Even as root this action failed in any results.

I can not recall what triggered the failure as it used to work for quite a

However I run my OS + ATRPMS updates regularly so it may be introduced
with one of them.

Any suggestions to find the cause and propably a solution?


	I hate duplicates. Just reply to the relevant mailinglist.
	hvdkooij at vanderkooij.org		http://hvdkooij.xs4all.nl/
		Don't meddle in the affairs of magicians,
		for they are subtle and quick to anger.

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