[FFmpeg-trac] #3779(undetermined:new): speex "Unable to parse option value "(null)" as sample format"

[FFmpeg]

#3779: speex "Unable to parse option value "(null)" as sample format"
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             Reporter:  ghazel        |                     Type:  defect
               Status:  new           |                 Priority:  normal
            Component:  undetermined  |                  Version:  2.2.4
             Keywords:                |               Blocked By:
             Blocking:                |  Reproduced by developer:  0
Analyzed by developer:  0             |
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 Summary of the bug:

 FLV with speex audio fails to transcode to MKV with MP3 audio. (FLVs with
 nellymoser convert fine, as does stripping the audio track.)

 How to reproduce:
 {{{
 $ ffmpeg -y -i example.flv -vcodec h264 -acodec mp3 example.mkv
 ffmpeg version 2.2.4 Copyright (c) 2000-2014 the FFmpeg developers
   built on Jun 29 2014 20:15:27 with Apple LLVM version 6.0
 (clang-600.0.34.4) (based on LLVM 3.5svn)
   configuration: --prefix=/usr/local/Cellar/ffmpeg/2.2.4 --enable-shared
 --enable-pthreads --enable-gpl --enable-version3 --enable-nonfree
 --enable-hardcoded-tables --enable-avresample --enable-vda --cc=clang
 --host-cflags= --host-ldflags= --enable-libx264 --enable-libfaac --enable-
 libmp3lame --enable-libxvid
   libavutil      52. 66.100 / 52. 66.100
   libavcodec     55. 52.102 / 55. 52.102
   libavformat    55. 33.100 / 55. 33.100
   libavdevice    55. 10.100 / 55. 10.100
   libavfilter     4.  2.100 /  4.  2.100
   libavresample   1.  2.  0 /  1.  2.  0
   libswscale      2.  5.102 /  2.  5.102
   libswresample   0. 18.100 /  0. 18.100
   libpostproc    52.  3.100 / 52.  3.100
 [flv @ 0x7ff50c817000] negative cts, previous timestamps might be wrong
     Last message repeated 40 times
 Input #0, flv, from 'example.flv':
   Duration: 02:25:42.42, start: 0.000000, bitrate: 653 kb/s
     Stream #0:0: Video: h264 (Main), yuv420p(tv), 800x600 [SAR 1:1 DAR
 4:3], 30.33 fps, 30 tbr, 1k tbn, 60 tbc
     Stream #0:1: Audio: speex, 16000 Hz, mono
 [abuffer @ 0x7ff50b603be0] Unable to parse option value "(null)" as sample
 format
     Last message repeated 1 times
 [abuffer @ 0x7ff50b603be0] Error setting option sample_fmt to value
 (null).
 [graph 1 input from stream 0:1 @ 0x7ff50b603ce0] Error applying options to
 the filter.
 Error opening filters!
 Conversion failed!
 }}}

--
Ticket URL: <https://trac.ffmpeg.org/ticket/3779>
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