[mythtv-users] Nuvexport timing out on ffmpeg stage (can't open file)

Michael Jones m_g_j at michaelandholly.com
Fri Oct 21 03:38:50 EDT 2005


I'm kind of new to mythtv and multimedia on a unix box.. But not really new
to unix/linux itself...

I am currently running .18.1 on a FC3 machine.

My machine used to be able to run nuvexport without any problem (or at least
as far as I could tell)  I was getting ready to archive a bunch of stuff to
DVD and when I try to run nuvexport it fails in the ffmpeg stage.

Here's what the nuvexport screen shows..
-------------------------------------------------------------------
You have chosen to export 1 episode:

  1. Battlestar Galactica:
     Scattered (7/15, 10:00 PM) 480x480 MPEG2 (4:3)
     With Adama wounded and Laura Roslin in the brig, Tigh faces his first
test
     of leadership.

* Separate multiple episodes with spaces

  c. Continue
  n. Choose another show
  q. Quit

Choose a function, or episode(s) to remove:  c
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? [384]
Maximum video bitrate for VBR? [6000]
VBR quality/quantisation (1-31)? [5]

Now encoding:  Battlestar Galactica:  Scattered
Encode started:  Fri Oct 21 00:25:54 2005

Waiting for mythtranscode to set up the fifos.
Waiting for mythtranscode to set up the fifos.
Starting ffmpeg.
processed:  0 of 107745 frames (0.00%),   0.00 fps
--------------------------------------------------------------------

It sits here for a while and then times out with a message that it cannot
open the file. Permissions don't seem to be an issue.. I've tried both
mythtv and root (they defaulted to root even though I'm running as
un:mythtv)

If I look at "top" while waiting.. Mythtranscode is taking about 80% CPU and
ffmpeg about 15-20%.

I haven't figured out where errors might be logged (I've looked in
var/log/messages and the mythtv error log and haven't seen any "errors")

It used to work (it's been a while since I tried it, so I'm not sure what
has changed). 

Am I doing something wrong (wrong transcode settings?, not transcoding or
transcoding incorrectly (auto transcode is currently off.. But the result is
the same if it's on).

I saw a note a while back that you update to a specific version of ffmpeg
it's incompatible with a specific version of mythtranscode (or something).
How can I tell if this is the case?

Version of ffmpeg: 

ffmpeg version 0.4.9-pre1, build 4754

I need to figure this out.. My main drive is running out of space and I'd
like to get stuff moved/archived off to DVD.


Any help would be appreciated. What other information is required to
diagnose this?


Thanks Lots!

- Michael




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