[FFmpeg-user] (no subject)

[Video Work]

I seem to have compiled my ffmpeg with "--enable-libass"; yet, when I issue:

                        ffmpeg -i myvid.avi -vf ass=mysubs.ass output.avi

I get:

No such filter: 'ass'
Error opening filters!


What gives?

One thing I'm seeing is a warning in my ffmpeg config, about a mismatch.  Could
THAT be related to the problem?

ffmpeg:

ffmpeg version N-51346-gace0cfe Copyright (c) 2000-2013 the FFmpeg developers
  built on May  6 2013 02:56:53 with gcc 4.4.3 (Ubuntu 4.4.3-4ubuntu5.1)
  configuration: --enable-gpl --enable-libfaac --enable-libmp3lame
--enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libtheora
--enable-libvorbis --enable-libvpx --enable-libx264 --enable-nonfree
--enable-version3 --enable-x11grab --enable-libass
--extra-libs=/usr/local/lib/libass.a
  WARNING: library configuration mismatch
  avutil      configuration: --enable-version3 --enable-nonfree
--enable-libtheora --enable-gpl --enable-postproc --enable-libvorbis
--enable-libgsm --enable-libmp3lame --enable-libfaac --enable-libxvid
--enable-pthreads --enable-libx264 --enable-libopencore-amrnb
--enable-libopencore-amrwb --enable-libvpx --enable-shared
  avcodec     configuration: --enable-version3 --enable-nonfree
--enable-libtheora --enable-gpl --enable-postproc --enable-libvorbis
--enable-libgsm --enable-libmp3lame --enable-libfaac --enable-libxvid
--enable-pthreads --enable-libx264 --enable-libopencore-amrnb
--enable-libopencore-amrwb --enable-libvpx --enable-shared
  avformat    configuration: --enable-version3 --enable-nonfree
--enable-libtheora --enable-gpl --enable-postproc --enable-libvorbis
--enable-libgsm --enable-libmp3lame --enable-libfaac --enable-libxvid
--enable-pthreads --enable-libx264 --enable-libopencore-amrnb
--enable-libopencore-amrwb --enable-libvpx --enable-shared
  avdevice    configuration: --enable-version3 --enable-nonfree
--enable-libtheora --enable-gpl --enable-postproc --enable-libvorbis
--enable-libgsm --enable-libmp3lame --enable-libfaac --enable-libxvid
--enable-pthreads --enable-libx264 --enable-libopencore-amrnb
--enable-libopencore-amrwb --enable-libvpx --enable-shared
  avfilter    configuration: --enable-version3 --enable-nonfree
--enable-libtheora --enable-gpl --enable-postproc --enable-libvorbis
--enable-libgsm --enable-libmp3lame --enable-libfaac --enable-libxvid
--enable-pthreads --enable-libx264 --enable-libopencore-amrnb
--enable-libopencore-amrwb --enable-libvpx --enable-shared
  swscale     configuration: --enable-version3 --enable-nonfree
--enable-libtheora --enable-gpl --enable-postproc --enable-libvorbis
--enable-libgsm --enable-libmp3lame --enable-libfaac --enable-libxvid
--enable-pthreads --enable-libx264 --enable-libopencore-amrnb
--enable-libopencore-amrwb --enable-libvpx --enable-shared
  swresample  configuration: --enable-version3 --enable-nonfree
--enable-libtheora --enable-gpl --enable-postproc --enable-libvorbis
--enable-libgsm --enable-libmp3lame --enable-libfaac --enable-libxvid
--enable-pthreads --enable-libx264 --enable-libopencore-amrnb
--enable-libopencore-amrwb --enable-libvpx --enable-shared
  postproc    configuration: --enable-version3 --enable-nonfree
--enable-libtheora --enable-gpl --enable-postproc --enable-libvorbis
--enable-libgsm --enable-libmp3lame --enable-libfaac --enable-libxvid
--enable-pthreads --enable-libx264 --enable-libopencore-amrnb
--enable-libopencore-amrwb --enable-libvpx --enable-shared
  libavutil      52. 22.101 / 52. 22.101
  libavcodec     55.  2.100 / 55.  2.100
  libavformat    55.  0.100 / 55.  0.100
  libavdevice    55.  0.100 / 55.  0.100
  libavfilter     3. 48.105 /  3. 48.105
  libswscale      2.  2.100 /  2.  2.100
  libswresample   0. 17.102 /  0. 17.102
  libpostproc    52.  2.100 / 52.  2.100
Input #0, avi, from 'myvid.avi':
  Metadata:
    encoder         : Lavf55.0.100
  Duration: N/A, start: 0.000000, bitrate: N/A
    Stream #0:0: Video: mpeg4 (Simple Profile) (FMP4 / 0x34504D46), yuv420p,
720x480 [SAR 1:1 DAR 3:2], 25 tbr, 25 tbn, 25 tbc
    Stream #0:1: Audio: mp3 (U[0][0][0] / 0x0055), 44100 Hz, stereo, s16p, 320
kb/s