[FFmpeg-trac] #3695(undetermined:new): extremely slow 5.1 float aiff decoding since ffmpeg 2.x

[FFmpeg]

#3695: extremely slow 5.1 float aiff decoding since ffmpeg 2.x
-------------------------------------+-------------------------------------
             Reporter:  divide       |                    Owner:
                 Type:  defect       |                   Status:  new
             Priority:  important    |                Component:
              Version:  2.1.4        |  undetermined
             Keywords:  regression   |               Resolution:
             Blocking:               |               Blocked By:
Analyzed by developer:  0            |  Reproduced by developer:  0
-------------------------------------+-------------------------------------

Comment (by divide):

 output from the command line:

 ffmpeg.exe -i 5.1-32f.aif output.wav
 ffmpeg version 2.2.2 Copyright (c) 2000-2014 the FFmpeg developers
   built on May 22 2014 19:53:12 with gcc 4.8.2 (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-libcaca --enable-
 libfreetyp
 e --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug
 --enable-
 libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-
 libope
 njpeg --enable-libopus --enable-librtmp --enable-libschroedinger --enable-
 libsox
 r --enable-libspeex --enable-libtheora --enable-libtwolame --enable-
 libvidstab -
 -enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis --enable-
 libvpx
 --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265
 --enable-
 libxavs --enable-libxvid --enable-decklink --enable-zlib
   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
   libswscale      2.  5.102 /  2.  5.102
   libswresample   0. 18.100 /  0. 18.100
   libpostproc    52.  3.100 / 52.  3.100
 Input #0, aiff, from 'C:\temp\ffmpegbug\5.1-32f.aif':
   Duration: 00:00:10.00, start: 0.000000, bitrate: 9220 kb/s
     Stream #0:0: Audio: pcm_f32be (fl32 / 0x32336C66), 48000 Hz, 5.1, flt,
 9216
 kb/s
 File 'C:\temp\ffmpegbug\output.wav' already exists. Overwrite ? [y/N] y
 Output #0, wav, to 'C:\temp\ffmpegbug\output.wav':
   Metadata:
     ISFT            : Lavf55.33.100
     Stream #0:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 48000 Hz, 5.1,
 s16, 4
 608 kb/s
 Stream mapping:
   Stream #0:0 -> #0:0 (pcm_f32be -> pcm_s16le)
 Press [q] to stop, [?] for help
 size=     733kB time=00:00:01.30 bitrate=4608.6kbits/s
 video:0kB audio:733kB subtitle:0 data:0 global headers:0kB muxing overhead
 0.013
 593%
 Received signal 2: terminating.

--
Ticket URL: <https://trac.ffmpeg.org/ticket/3695#comment:3>
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