[FFmpeg-user] Error: [AVFilterGraph @ 0xabe1cc0] No such filter: 'ass'

[jun]

I use ubuntustudio and ffmpeg to embed subtitles into videos. I've been doing
this combo for almost 2 years now. Recently I reinstalled ubuntustudio
14.04.3 and then ffmpeg-2.8.4 and now I cant seem to get it to work. I get
this error mesg:

"[AVFilterGraph @ 0xabe1cc0] No such filter: 'ass' " 

here is what I get

$ ffmpeg -i input.mp4 -vf ass=subtitle.ass output.mp4
ffmpeg version 2.8.4 Copyright (c) 2000-2015 the FFmpeg developers
  built with gcc 4.8 (Ubuntu 4.8.4-2ubuntu1~14.04)
  configuration: 
  libavutil      54. 31.100 / 54. 31.100
  libavcodec     56. 60.100 / 56. 60.100
  libavformat    56. 40.101 / 56. 40.101
  libavdevice    56.  4.100 / 56.  4.100
  libavfilter     5. 40.101 /  5. 40.101
  libswscale      3.  1.101 /  3.  1.101
  libswresample   1.  2.101 /  1.  2.101
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'input.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    encoder         : Lavf57.4.100
  Duration: 00:01:00.18, start: 0.000000, bitrate: 233 kb/s
    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p,
1280x720 [SAR 1:1 DAR 16:9], 228 kb/s, 60 fps, 60 tbr, 15360 tbn, 120 tbc
(default)
    Metadata:
      handler_name    : VideoHandler
File 'output.mp4' already exists. Overwrite ? [y/N] y
[AVFilterGraph @ 0xabe1cc0] No such filter: 'ass'
Error opening filters!
jun at X201:~/Videos/TEST VIDS$ ffmpeg -i input.mp4 -vf ass=subtitle.ass
output.mp4
ffmpeg version 2.8.4 Copyright (c) 2000-2015 the FFmpeg developers
  built with gcc 4.8 (Ubuntu 4.8.4-2ubuntu1~14.04)
  configuration: 
  libavutil      54. 31.100 / 54. 31.100
  libavcodec     56. 60.100 / 56. 60.100
  libavformat    56. 40.101 / 56. 40.101
  libavdevice    56.  4.100 / 56.  4.100
  libavfilter     5. 40.101 /  5. 40.101
  libswscale      3.  1.101 /  3.  1.101
  libswresample   1.  2.101 /  1.  2.101
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'input.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    encoder         : Lavf57.4.100
  Duration: 00:01:00.18, start: 0.000000, bitrate: 233 kb/s
    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p,
1280x720 [SAR 1:1 DAR 16:9], 228 kb/s, 60 fps, 60 tbr, 15360 tbn, 120 tbc
(default)
    Metadata:
      handler_name    : VideoHandler
File 'output.mp4' already exists. Overwrite ? [y/N] y
[AVFilterGraph @ 0xabe1cc0] No such filter: 'ass'
Error opening filters!

Any suggestions hot to get it working again? how can I enable the ass
filter?

Thanks in advance





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