> ffmpeg -y -r 24 -i 2000_0080_comp_master_v0010.%04d.exr -c:v libx264 -profile:v main -g 1 -tune stillimage -crf 9 -bf 0 -vendor ap10 -pix_fmt yuv420p -r 24 /mnt/nox2/development/ffmpeg_test_output_exr.mov


produces:


ffmpeg version git-2013-11-21-50a28b1 Copyright (c) 2000-2013 the FFmpeg developers
  built on Nov 21 2013 14:48:33 with gcc 4.6 (Ubuntu/Linaro 4.6.3-1ubuntu5)
  configuration: --prefix=/home/superuser/ffmpeg_build --extra-cflags=-I/home/superuser/ffmpeg_build/include --extra-ldflags=-L/home/superuser/ffmpeg_build/lib --bindir=/home/superuser/bin --extra-libs=-ldl --enable-gpl --enable-libass --enable-libfdk-aac --enable-libmp3lame --enable-libopus --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-nonfree --enable-x11grab
  libavutil      52. 53.100 / 52. 53.100
  libavcodec     55. 44.100 / 55. 44.100
  libavformat    55. 21.100 / 55. 21.100
  libavdevice    55.  5.100 / 55.  5.100
  libavfilter     3. 91.100 /  3. 91.100
  libswscale      2.  5.101 /  2.  5.101
  libswresample   0. 17.104 /  0. 17.104
  libpostproc    52.  3.100 / 52.  3.100
[exr @ 0x20dcba0] Wrong sizing or missing size information
[image2 @ 0x20dbc40] decoding for stream 0 failed
[image2 @ 0x20dbc40] Could not find codec parameters for stream 0 (Video: exr, rgb48le): unspecified size
Consider increasing the value for the 'analyzeduration' and 'probesize' options
2000_0080_comp_master_v0010.%04d.exr: could not find codec parameters