[FFmpeg-trac] #324(FFmpeg:new): floating point exception while generation of 1s silence

[FFmpeg]

#324: floating point exception while generation of 1s silence
----------------------------+--------------------------------------
  Reporter:  Schweinebacke  |      Owner:  michael
      Type:  defect         |     Status:  new
  Priority:  critical       |  Component:  FFmpeg
   Version:  0.8            |   Keywords:  floating point exception
Blocked By:                 |   Blocking:
Reproduced:  0              |   Analyzed:  0
----------------------------+--------------------------------------
 ffmpeg -f s16le -i /dev/zero -ab 224000 -ar 48000 -ac 2 -t 1 test.ac3
 or
 ffmpeg -f s16le -i /dev/zero -ab 224000 -ar 48000 -ac 2 -t 1 test.wav
 results in a floating point exception:
 {{{
 ffmpeg version 0.8, Copyright (c) 2000-2011 the FFmpeg developers
   built on Jun 23 2011 09:35:04 with gcc 4.5.0 20100604 [gcc-4_5-branch
 revision 160292]
   configuration: --shlibdir=/usr/lib64 --prefix=/usr
 --mandir=/usr/share/man --libdir=/usr/lib64 --enable-shared --disable-
 static --enable-libmp3lame --enable-libvorbis --enable-libtheora --enable-
 libspeex --enable-libxvid --enable-postproc --enable-gpl --enable-x11grab
 --extra-cflags='-fmessage-length=0 -O2 -Wall -D_FORTIFY_SOURCE=2 -fstack-
 protector -funwind-tables -fasynchronous-unwind-tables -g -fPIC
 -I/usr/include/gsm' --enable-debug --disable-stripping --enable-libgsm
 --enable-libschroedinger --enable-libdirac --enable-avfilter --enable-
 libvpx --enable-version3 --enable-libopencore-amrnb --enable-libopencore-
 amrwb --enable-libx264 --enable-libdc1394 --enable-pthreads --enable-
 librtmp
   libavutil    51.  9. 1 / 51.  9. 1
   libavcodec   53.  7. 0 / 53.  7. 0
   libavformat  53.  4. 0 / 53.  4. 0
   libavdevice  53.  1. 1 / 53.  1. 1
   libavfilter   2. 23. 0 /  2. 23. 0
   libswscale    2.  0. 0 /  2.  0. 0
   libpostproc  51.  2. 0 / 51.  2. 0
 Ignoring attempt to set invalid timebase for st:0
 [s16le @ 0x635660] Estimating duration from bitrate, this may be
 inaccurate
 Input #0, s16le, from '/dev/zero':
   Duration: N/A, start: 0.000000, bitrate: N/A
     Stream #0.0: Audio: pcm_s16le, 1 channels, s16
 [ac3 @ 0x62f220] channel_layout not specified
 [ac3 @ 0x62f220] No channel layout specified. The encoder will guess the
 layout, but it might be incorrect.
 Output #0, ac3, to 'test.ac3':
   Metadata:
     encoder         : Lavf53.4.0
     Stream #0.0: Audio: ac3, 48000 Hz, stereo, s16, 224 kb/s
 Stream mapping:
   Stream #0.0 -> #0.0
 Press [q] to stop, [?] for help
 floating point exception
 }}}

-- 
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/324>
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