[FFmpeg-trac] #5273(undetermined:new): adpcm_swf: 11khz mode decodes as 5khz

[FFmpeg]

#5273: adpcm_swf: 11khz mode decodes as 5khz
-------------------------------------+-------------------------------------
               Reporter:  ami_stuff  |                  Owner:
                   Type:  defect     |                 Status:  new
               Priority:  normal     |              Component:
                Version:             |  undetermined
  unspecified                        |               Keywords:
             Blocked By:             |               Blocking:
Reproduced by developer:  0          |  Analyzed by developer:  0
-------------------------------------+-------------------------------------
 I don't know if this is a bug in ffmpeg or in encoding software.

 {{{
 C:\>ffmpeg -i 11khz_mono_44kbps.flv out.wav
 ffmpeg version N-78410-g588e2e3 Copyright (c) 2000-2016 the FFmpeg
 developers
   built with gcc 5.3.0 (GCC)
   configuration: --enable-gpl --enable-version3 --disable-w32threads
 --enable-av
 isynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls
 --enab
 le-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-
 libcaca --
 enable-libdcadec --enable-libfreetype --enable-libgme --enable-libgsm
 --enable-l
 ibilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb
 --enab
 le-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-
 librtmp --en
 able-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora
 --ena
 ble-libtwolame --enable-libvidstab --enable-libvo-amrwbenc --enable-
 libvorbis --
 enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264
 --enable-lib
 x265 --enable-libxavs --enable-libxvid --enable-libzimg --enable-lzma
 --enable-d
 ecklink --enable-zlib
   libavutil      55. 17.100 / 55. 17.100
   libavcodec     57. 24.102 / 57. 24.102
   libavformat    57. 25.100 / 57. 25.100
   libavdevice    57.  0.101 / 57.  0.101
   libavfilter     6. 31.100 /  6. 31.100
   libswscale      4.  0.100 /  4.  0.100
   libswresample   2.  0.101 /  2.  0.101
   libpostproc    54.  0.100 / 54.  0.100
 Input #0, flv, from '11khz_mono_44kbps.flv':
   Metadata:
     creationdate    : Thu Feb 25 04:13:06 2016
     Encoded_With    : Sorenson Squeeze
     Encoded_By      :
   Duration: 00:00:02.43, start: 0.000000, bitrate: 183 kb/s
     Stream #0:0: Audio: adpcm_swf, 5512 Hz, mono, s16, 22 kb/s
 Output #0, wav, to 'out.wav':
   Metadata:
     creationdate    : Thu Feb 25 04:13:06 2016
     Encoded_With    : Sorenson Squeeze
     ITCH            :
     ISFT            : Lavf57.25.100
     Stream #0:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 5512 Hz, mono,
 s16, 8
 8 kb/s
     Metadata:
       encoder         : Lavc57.24.102 pcm_s16le
 Stream mapping:
   Stream #0:0 -> #0:0 (adpcm_swf (native) -> pcm_s16le (native))
 Press [q] to stop, [?] for help
 size=     208kB time=00:00:09.74 bitrate= 175.0kbits/s speed=N/A
 video:0kB audio:208kB subtitle:0kB other streams:0kB global headers:0kB
 muxing o
 verhead: 0.036584%
 }}}

--
Ticket URL: <https://trac.ffmpeg.org/ticket/5273>
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