[FFmpeg-trac] #1692(avfilter:new): Using atempo filter causes segfault

[FFmpeg]

#1692: Using atempo filter causes segfault
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               Reporter:  takis       |                  Owner:
                   Type:  defect      |                 Status:  new
               Priority:  normal      |              Component:  avfilter
                Version:  git-master  |               Keywords:
             Blocked By:              |               Blocking:
Reproduced by developer:  0           |  Analyzed by developer:  0
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 Summary of the bug:
 Using the atempo filter causes a segmentation fault.


 How to reproduce:
 {{{
 ./audiogen original.wav
 % ffmpeg -i original.wav -af atempo=0.8 test.wav
 ffmpeg version N-43928-g60924df Copyright (c) 2000-2012 the FFmpeg
 developers
   built on Aug 27 2012 14:19:01 with gcc 4.6 (Ubuntu/Linaro
 4.6.3-1ubuntu5)
   configuration: --enable-avfilter --enable-frei0r --enable-gpl --enable-
 libfaac --enable-libmp3lame --enable-libschroedinger --enable-libspeex
 --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264
 --enable-libxvid --enable-nonfree --enable-pic --enable-pthreads --enable-
 shared --enable-version3 --enable-x11grab
   libavutil      51. 70.100 / 51. 70.100
   libavcodec     54. 54.100 / 54. 54.100
   libavformat    54. 25.104 / 54. 25.104
   libavdevice    54.  2.100 / 54.  2.100
   libavfilter     3. 13.101 /  3. 13.101
   libswscale      2.  1.101 /  2.  1.101
   libswresample   0. 15.100 /  0. 15.100
   libpostproc    52.  0.100 / 52.  0.100
 [wav @ 0x2172240] max_analyze_duration 5000000 reached at 5015510
 Guessed Channel Layout for  Input Stream #0.0 : mono
 Input #0, wav, from 'original.wav':
   Duration: 00:00:06.00, bitrate: 705 kb/s
     Stream #0:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 44100 Hz, mono,
 s16, 705 kb/s
 File 'test.wav' already exists. Overwrite ? [y/N] y
 Output #0, wav, to 'test.wav':
   Metadata:
     encoder         : Lavf54.25.104
     Stream #0:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 44100 Hz, mono,
 s16, 705 kb/s
 Stream mapping:
   Stream #0:0 -> #0:0 (pcm_s16le -> pcm_s16le)
 Press [q] to stop, [?] for help
 Segmentation fault (core dumped)
 }}}

-- 
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/1692>
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