[mythtv-users] Poor-Quality SVCD's

[Tom Purl]

Thanks a ton!  That fixed my problem.  I basically changed the
following line in /usr/local/share/nuvexport/export/ffmpeg/SVCD.pm
from this:

    $self->{'ffmpeg_xtra'} = ' -b ' . $self->{'v_bitrate'}

to this:

    $self->{'ffmpeg_xtra'} = ' -b ' . $self->{'v_bitrate'} . 'k'

Thanks again!

Tom Purl

On Sun, Oct 01, 2006 at 05:50:42PM +0100, Paul Harrison wrote:
> Tom Purl wrote:
> >I'm trying to export some of my MythTv shows to SVCD's using
> >nuvexport, but the qualityy is really poor.  It's *very* pixilated, to
> >the point where images are blending together.  Since the .mpg files
> >that are created by nuvexport look just as bad as the actual svcd's,
> >I don't think the problem is with anything outside of nuvexport.
> >
> >I'm using ffmpeg, which I compiled from source.  Here's how I
> >compiled it:
> >
> >    FFmpeg version SVN-r6335, Copyright (c) 2000-2004 Fabrice Bellard
> >      configuration:  --enable-mp3lame --enable-libogg --enable-vorbis
> >    --enable-faad --enable-faac --enable-libgsm --enable-xvid --enable-gpl
> >      libavutil version: 49.0.1
> >      libavcodec version: 51.15.0
> >      libavformat version: 50.5.0
> >      built on Sep 26 2006 21:16:44, gcc: 4.0.3 (Ubuntu 4.0.3-1ubuntu5)
> >
> >Also, here's what I get when I run nuvexport with the --debug option:
> >
> >    --------------------------------
> >    To encode:  Scrubs:  My Fruit Cups
> >    Use the following commands:
> >
> >    system call:
> >    mkdir -m 0755 /tmp/fifodir_5807/
> >
> >    forking:
> >    /usr/bin/nice -n19 /usr/local/bin/mythtranscode --showprogress -p 
> >    autodetect -c 1047 -s 2006-09-23-14-00-00 -f "/tmp/fifodir_5807/" 
> >    --honorcutlist 2>&1
> >
> >    forking:
> >    /usr/bin/nice -n19 ffmpeg -f rawvideo -s 480x480 -r 29.970 -i
> >    /tmp/fifodir_5807/vidout -f yuv4mpegpipe - 2> /dev/null |
> >    /usr/bin/nice -n19 yuvdenoise 2> /dev/null | /usr/bin/nice -n19 ffmpeg
> >    -y -f s16le -ar 48000 -ac 2 -i /tmp/fifodir_5807/audout -f
> >    yuv4mpegpipe -s 480x480 -aspect 1.33333333333333 -r 29.970 -i --aspect
> >    1.3333 -r 29.97 -deinterlace -croptop    10 -cropright 10 -cropbottom
> >    10 -cropleft  10 -s 480x480  -b 2500 -vcodec mpeg2video -qmin 5 -ab
> >    192 -ar 44100 -acodec mp2 -f svcd '/home/tom/test/Scrubs - My Fruit 
> >    Cups.mpg' 2>&1
> >
> >Does anyone know what I'm doing wrong or if there are any good
> >alternatives for someone who wants to burn recordings to a CDR (since
> >I don't own a DVD burner)?
> >
> >Thanks a ton in advance for any help!
> >
> >Tom Purl
> >  
> 
> http://www.gossamer-threads.com/lists/mythtv/users/226470#226470
> 
> Paul H.
>