[FFmpeg-user] Converting IFF image sequence to mpeg4

[Dan Bradham]

Hey I'm having some trouble converting IFF sequences to mpeg4. My input and
output are as follows.

ffmpeg -f image2 -r 24 -s 960x540 -i 'shot1.%04d.iff' test.mp4



ffmpeg version 0.7.6-rpmfusion, Copyright (c) 2000-2011 the FFmpeg
developers
  built on Oct 23 2011 17:45:03 with gcc 4.6.1 20110908 (Red Hat 4.6.1-9)
  configuration: --prefix=/usr --bindir=/usr/bin
--datadir=/usr/share/ffmpeg --incdir=/usr/include/ffmpeg
--libdir=/usr/lib64 --mandir=/usr/share/man --arch=x86_64
--extra-cflags='-O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions
-fstack-protector --param=ssp-buffer-size=4 -m64 -mtune=generic'
--extra-version=rpmfusion --enable-bzlib --enable-libcelt
--enable-libdc1394 --enable-libdirac --enable-libfreetype --enable-libgsm
--enable-libmp3lame --enable-libopenjpeg --enable-librtmp
--enable-libschroedinger --enable-libspeex --enable-libtheora
--enable-libvorbis --enable-libvpx --enable-libx264 --enable-libxvid
--enable-x11grab --enable-avfilter --enable-postproc --enable-pthreads
--disable-static --enable-shared --enable-gpl --disable-debug
--disable-stripping --shlibdir=/usr/lib64 --enable-runtime-cpudetect
  libavutil    50. 43. 0 / 50. 43. 0
  libavcodec   52.122. 0 / 52.122. 0
  libavformat  52.110. 0 / 52.110. 0
  libavdevice  52.  5. 0 / 52.  5. 0
  libavfilter   1. 80. 0 /  1. 80. 0
  libswscale    0. 14. 1 /  0. 14. 1
  libpostproc  51.  2. 0 / 51.  2. 0
Input #0, image2, from 'shot1.%04d.iff':
  Duration: 00:00:11.00, start: 0.000000, bitrate: N/A
    Stream #0.0: Video: [0][0][0][0] / 0x0000, 960x540, 24 fps, 24 tbr, 24
tbn, 24 tbc
File 'test.mp4' already exists. Overwrite ? [y/N] y
[buffer @ 0x19403e0] Invalid pixel format string '-1'
Error opening filters!



Any ideas?