[FFmpeg-trac] #2460(avfilter:new): af_pan cannot parse arguments from example in documentation

[FFmpeg]

#2460: af_pan cannot parse arguments from example in documentation
-------------------------------------+-------------------------------------
             Reporter:  sghpunk      |                     Type:  defect
               Status:  new          |                 Priority:  normal
            Component:  avfilter     |                  Version:
             Keywords:  pan,         |  unspecified
  af_pan, audio filter               |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
 Summary of the bug:
 ffmpeg gives an error: 'Expected out channel name, got " FL < FL"'
 How to reproduce:
 {{{
 % ffmpeg -i file.mpg -f wav -map 0:a:1 -filter:a [in]pan="stereo: FL < FL
 + 0.7*FC + 0.6*LFE + 0.7*BL + 0.7*SL : FR < FR + 0.7*FC + 0.6*LFE + 0.7*BR
 + 0.7*SR"[out] file.wav

 ffmpeg version 1.2 Copyright (c) 2000-2013 the FFmpeg developers
   built on Apr 12 2013 09:56:51 with gcc 4.6 (Ubuntu/Linaro
 4.6.3-1ubuntu5)
   configuration: --prefix=/opt/ffmpeg-1.2 --disable-static --enable-shared
 --enable-gpl --enable-version3 --enable-doc --enable-postproc --disable-
 network --enable-memalign-hack --enable-libopencore-amrnb --enable-
 libopencore-amrwb --enable-libmp3lame --enable-libspeex --enable-libvorbis
 --enable-libx264 --enable-pthreads --enable-frei0r --cpu=amdfam10
 --arch=amd64 --disable-vdpau --enable-bzlib --enable-libgsm --enable-
 libschroedinger --enable-libspeex --enable-libtheora --enable-libvorbis
 --enable-pthreads --enable-zlib --enable-libvpx --enable-libfreetype
 --enable-vaapi --enable-libopenjpeg --enable-x11grab --enable-libmp3lame
 --enable-librtmp --enable-libx264 --enable-libdc1394 --enable-libxvid
 --enable-avresample --extra-cflags='-g0 -s' --extra-cxxflags='-g0 -s'
 --build-suffix=-1.2 --extra-ldflags='-L/opt/ffmpeg-1.2/lib
 -Wl,-rpath,/opt/ffmpeg-1.2/lib'
   libavutil      52. 18.100 / 52. 18.100
   libavcodec     54. 92.100 / 54. 92.100
   libavformat    54. 63.104 / 54. 63.104
   libavdevice    54.  3.103 / 54.  3.103
   libavfilter     3. 42.103 /  3. 42.103
   libswscale      2.  2.100 /  2.  2.100
   libswresample   0. 17.102 /  0. 17.102
   libpostproc    52.  2.100 / 52.  2.100
 }}}
 I found a regression and have patch submitted to ffmpeg-devel mailing list

-- 
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/2460>
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