[mythtv-users] nuvexport / MythTV .20

Walter Hofstetter walter.hofstetter at netwho.com
Mon Oct 16 10:01:05 UTC 2006

I'm stuck with a nasty issue exporting and can't believe that I', the 
only one....

If I export a recording from MythTV/IVTV (MPEG2 from PVR 350) the audio 
is much to slow.
E.g. I converted a short recording with nuvexport to xvid using all 
default switches.

The length of exported video will be reported as 0:01:21 instead of 0:00:38.
The video will stop at 38sec but the audio will play for 1:21 min. 

Here are some details from GSPOT

 >> Original File <<

DVD "VOB" format
MPEG-2 Program Stream << { 1 vid, 1 aud, 1 other}
Sys Bitrate: 4500 kb/s VBR


Codec:   MPEG2_Video
Name:    MPEG-2
Len:     00:38:640
Pics/s:  25.000
Pic:     720x576 /DVD/4:3


Codec:   MPEG-1 Layer 2
Info:    0xc0:48000Hz 192kb/s total, Stereo

 >> Exported File (nuvexport -> Xvid) <<


AVI v1.0
Interleave: 1 vid frame (40 ms)
Audio frames: Aligned on interleaves
Video: 4.10 MB (75.25%)
Audio: 1.24 MB (22.87%)
AVI Overhead: 104 KB (1.88%)


Codec:  xvid
Name:   XviD 1.1 Final
Len:    00:37:440
Pics/s: 25.000
Pic:    624x464


Codec:  0x0055 MPEG-1 Layer 3
Info:   44100Hz  128 kb/s , Monophonic

I'm useing MythBackend 0.20.20060828-3, MPlayer 1.0pre8-4.1.1, FFmpeg 
version SVN-rUNKNOWN, Copyright (c) 2000-2004 Fabrice Bellard
  configuration:  --extra-cflags=-O2 -g -pipe -Wall 
-Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector 
--param=ssp-buffer-size=4 -m32 -march=i386 -mtune=generic 
-fasynchronous-unwind-tables --prefix=/usr --libdir=/usr/lib 
--shlibdir=/usr/lib --mandir=/usr/share/man --incdir=/usr/include/ffmpeg 
--cpu=x86 --enable-a52 --enable-a52bin --enable-dts --enable-faac 
--enable-faad --enable-libgsm --enable-mp3lame --enable-libogg 
--enable-vorbis --enable-x264 --enable-xvid --enable-gpl --enable-pp 
--enable-pthreads --enable-shared --disable-debug --disable-opts 
  libavutil version: 49.0.0
  libavcodec version: 51.10.0
  libavformat version: 50.5.0
  built on Sep 30 2006 13:58:22, gcc: 4.1.1 20060525 (Red Hat 4.1.1-1)
ffmpeg      SVN-rUNKNOWN
libavutil   3211264
libavcodec  3345664
libavformat 3278080

Any hint how to track down is very much appreciated!!!

Cheers, Walter

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