[mythtv-users] nuvexport slash ffmpeg problem?

Grant Swenson gswens at gmail.com
Fri May 6 12:55:56 UTC 2005

I'm having trouble with the latest nuvexport tool. Passing "debug" shows: 

system call:
mkdir -m 0755 /tmp/fifodir_10794/

/bin/nice -n19 mythtranscode --showprogress -p autodetect -c 1013 -s
2005-03-23-19-29-00 -f "/tmp/fifodir_10794/" --honorcutlist 2>&1

/bin/nice -n19 ffmpeg -hq -y -f s16le -ar 32000 -ac 2 -i
/tmp/fifodir_10794/audout -f rawvideo -s 480x480 -r 29.97 -i
/tmp/fifodir_10794/vidout -deinterlace -croptop 10 -cropbottom 10
-cropleft 10 -cropright 10  -vcodec mpeg4 -b 960 -minrate 32 -maxrate
1920 -bt 32 -lumi_mask 0.05 -dark_mask 0.02 -scplx_mask 0.7 -acodec
mp3 -ab 128 -s 320x240 -f avi "./Alan Alda in Scientific American
Frontiers - Hidden Motives.2.avi" 2>&1

and when I try these by hand, I get:

ffmpeg version 0.4.9-pre1, build 4752, Copyright (c) 2000-2004 Fabrice Bellard
  configuration:  --build=i686-redhat-linux-gnu
--host=i686-redhat-linux-gnu --target=i386-redhat-linux-gnu
--program-prefix= --prefix=/usr --exec-prefix=/usr --bindir=/usr/bin
--sbindir=/usr/sbin --sysconfdir=/etc --datadir=/usr/share
--includedir=/usr/include --libdir=/usr/lib --libexecdir=/usr/libexec
--localstatedir=/var --sharedstatedir=/usr/com --mandir=/usr/share/man
--infodir=/usr/share/info --enable-mp3lame --enable-vorbis
--enable-faadbin --disable-faac --enable-xvid --enable-a52bin
--disable-dts --enable-pp --enable-shared-pp --enable-shared
--disable-amr_nb --disable-amr_nb-fixed --disable-amr_wb
--disable-sunmlib --enable-pthreads --enable-dc1394 --enable-gpl
--disable-strip --extra-cflags=-O2 -g -pipe -Wp,-D_FORTIFY_SOURCE=2
-fexceptions -m32 -march=i386 -mtune=pentium4
-fasynchronous-unwind-tables make
  built on Apr 17 2005 20:00:39, gcc: 3.4.3 20050227 (Red Hat 3.4.3-22.fc3)
Input #0, s16le, from '/tmp/fifodir_10795/audout':
  Duration: N/A, bitrate: N/A
  Stream #0.0: Audio: pcm_s16le, 32000 Hz, stereo, 1024 kb/s
Input #1, rawvideo, from '/tmp/fifodir_10795/vidout':
  Duration: N/A, bitrate: N/A
  Stream #1.0: Video: rawvideo, yuv420p, 480x480, 29.97 fps
Output #0, avi, to './Alan Alda in Scientific American Frontiers -
Hidden Motives.2.avi':
  Stream #0.0: Video: mpeg4 (hq), 320x240, 29.97 fps, q=2-31, 960 kb/s
  Stream #0.1: Audio: mp3, 32000 Hz, stereo, 128 kb/s
Stream mapping:
  Stream #1.0 -> #0.0
  Stream #0.0 -> #0.1
[mpeg4 @ 0x69a210]a vbv buffer size is needed, for encoding with a
maximum bitrate
Error while opening codec for output stream #0.0 - maybe incorrect
parameters such as bit_rate, rate, width or height

Any ideas here? Searching for this error "a vbv buffer size is needed"
doesn't help.


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