ffmpeg "Incorrect frame size"

[mzneverdies]

following this guide , i tried to convert a video, using the following command:

ffmpeg -i inptfile -y -f mp4 -bitexact -vcodec mpeg4 -s 320×240 -r 15 -b 256k -acodec aac -ac 1 -ar 16000 -ab 32 output.mp4

where inptfile is the name of my video.avi.

but i keep getting this error output:

FFmpeg version SVN-rUNKNOWN, Copyright (c) 2000-2004 Fabrice Bellard
configuration: --enable-gpl --enable-pp --enable-pthreads --enable-vorbis --enable-libogg --enable-a52 --enable-dts --enable-libgsm --enable-dc1394 --disable-debug --enable-shared --prefix=/usr
libavutil version: 0d.49.0.0
libavcodec version: 0d.51.11.0
libavformat version: 0d.50.5.0
built on Jan 28 2007 22:48:38, gcc: 4.1.2 20070106 (prerelease) (Ubuntu 4.1.1-21ubuntu7)
Input #0, avi, from 'Bleach 129.avi':
Duration: 00:24:04.6, start: 0.000000, bitrate: 1005 kb/s
Stream #0.0: Video: mpeg4, yuv420p, 640x480, 23.98 fps(r)
Stream #0.1: Audio: mp3, 48000 Hz, stereo, 112 kb/s
Incorrect frame size

any ideas about how to fix it?

[mzneverdies]

I switched to avidemux and no I can recode videos without problems.

So problem solved