[mythtv-users] nuvexport -> svcd

[Jon]

thanks.  The command i was running was
ffmpeg -f rawvideo -s 480x480 -r 29 -i fifodir/vidout -f yuv4mpegpipe -
which was having no problems flooding my terminal, i.e outputting to stdin,
I'm not sure why yuvscaler is unable to pick this up. my ps axf is
27525 pts/1    S      0:00  |           \_ /usr/bin/perl -w ./nuvexport
27533 pts/1    SN     0:02  |               |   \_ mythtranscode -p
autodetect -
27539 pts/1    S      0:00  |               \_ /usr/bin/perl -w ./nuvexport
27540 pts/1    SN     0:00  |               |   \_ toolame -s 48 -m j -b
0192 fi
27542 pts/1    S      0:00  |               \_ /usr/bin/perl -w ./nuvexport
27543 pts/1    S      0:00  |                   \_ sh -c nice -n 19
ffmpeg -f ra
27544 pts/1    SN     0:00  |                       \_ ffmpeg -f rawvideo -s
480
27545 pts/1    RN     0:21  |                       \_ yuvdenoise -r 16

----- Original Message ----- 
From: "Chris Petersen" <lists at forevermore.net>
To: "Discussion about mythtv" <mythtv-users at mythtv.org>
Sent: Friday, October 03, 2003 7:02 PM
Subject: Re: [mythtv-users] nuvexport -> svcd


> > After viewing ps closely, I'm still having a hardtime locating where my
> > mistake is, this is a copy of my ps while running nuvexport.  My error
msg
> > is still
> > **ERROR: [yuvscaler] Unable to write to output - aborting!
>
> try `ps axf` next time - shows parent/child processes.
>
> anyway, from that error message, as best as I can tell, your mpeg2enc is
> not accepting a stdin stream.  You'd be getting an error from nuvexport
> if mpeg2enc doesn't exist...  So here's my suggestion...   in the latest
> version of nuvexport, right around line 432, you should see:
>
> push @{$self->{children}}, utils::fork_command($command);
>
> BEFORE this line, insert:
>
> die "\n\n$command\n\n";
>
> When you go to run nuvexport again, this will print out the encode
> process command for the video half of things and then cause nuvexport to
> die (and probably kill off any of its child processes like
> mythtranscode).  But that'll show you the command.  Unfortunately, to
> run it, you'll need to also manually run mythtranscode.  Maybe
> eventually I'll write a debug command to print all of those commands
> out.  I'll try to get to that tonight if I have time.
>
> -Chris
>
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