[FFmpeg-trac] #725(undetermined:new): Please add a -af option for libavfilter audio filters.

[FFmpeg]

#725: Please add a -af option for libavfilter audio filters.
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             Reporter:               |                     Type:
  jeremysalwen                       |  enhancement
               Status:  new          |                 Priority:  minor
            Component:               |                  Version:  git-
  undetermined                       |  master
             Keywords:               |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
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 It would be nice if the -af option worked for audio filters like the -vf
 one does for video filters (according to the documentation, it should).

 Console output:
 ./audio/ffmpeg/ffmpeg -i write.wav -af volume=0.1 ~/lol.wav
 ffmpeg version N-35540-g0cc9949, Copyright (c) 2000-2011 the FFmpeg
 developers
   built on Dec  7 2011 22:26:02 with gcc 4.6.1
   configuration: --enable-filter=earwax
   libavutil    51. 30. 0 / 51. 30. 0
   libavcodec   53. 41. 2 / 53. 41. 2
   libavformat  53. 24. 0 / 53. 24. 0
   libavdevice  53.  4. 0 / 53.  4. 0
   libavfilter   2. 51. 0 /  2. 51. 0
   libswscale    2.  1. 0 /  2.  1. 0
 [wav @ 0x2a387e0] parser not found for codec pcm_s16le, packets or times
 may be invalid.
 [wav @ 0x2a387e0] max_analyze_duration 5000000 reached at 5015510
 Input #0, wav, from 'write.wav':
   Duration: 00:04:01.86, bitrate: 1411 kb/s
     Stream #0:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 44100 Hz, 2
 channels, s16, 1411 kb/s
 Unrecognized option 'af'
 Failed to set value 'volume=0.1' for option 'af'

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Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/725>
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