Transcoding and ffmpeg details?

[nv40]

The options for transcoding have very little info.....which format produces the smallest file. I use nero recode to make 4.7 gb movies into about 1.5 gb mp4's that look almost identical, but I want something automated and I can't figure out if/how the built in transcoding can support something similar to this format/compression/quality?

[sub]

The FFmpeg command lines used for transcoding are listed in the config.xml file:

Code:

<CustomFFmpegConversions>
    <Conversion name="XviD" cmd="-y -i {SOURCE_FILE} -f avi -ab 128 -ac 2 -vcodec xvid -b 1250 {DEST_FILE}" targetExtension=".avi" />
    <Conversion name="Video Ipod" cmd="-y -i {SOURCE_FILE} -title {TITLE_SUBTITLE} -f mp4 -vcodec mpeg4 -s 320x240 -r 15 {DEST_FILE}" targetExtension=".mp4" />
    <Conversion name="Sony PSP" cmd="-y -i {SOURCE_FILE} -title {TITLE_SUBTITLE} -f psp -r 29.97 -s 368x208 -b 768 -ar 24000 -ab 32 {DEST_FILE}" targetExtension=".mp4" />
    <Conversion name="Mobile .3GP" cmd="-y -i {SOURCE_FILE} -acodec aac -vcodec mpeg4 -s qcif -aspect 4:3 -hq {DEST_FILE}" targetExtension=".3gp" />
  </CustomFFmpegConversions>

You can find documentation about the ffmpeg command line parameters at http://ffmpeg.sourceforge.net/ffmpeg-doc.html