[FFmpeg-trac] #1704(undetermined:new): ffplay plays at double speed with "-ac 2"

[FFmpeg]

#1704: ffplay plays at double speed with "-ac 2"
-------------------------------------+-------------------------------------
             Reporter:  rogerdpack   |                     Type:  defect
               Status:  new          |                 Priority:  normal
            Component:               |                  Version:
  undetermined                       |  unspecified
             Keywords:               |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
 Summary of the bug:
 How to reproduce:

 play attached file like
 $ ffplay -ac 2  yo10.wav

 {{{
 ffmpeg -i yo.wav -t 10 yo10.wav
 ffmpeg version N-44016-gbebef40 Copyright (c) 2000-2012 the FFmpeg
 developers
   built on Aug 30 2012 15:26:06 with gcc 4.7.1 (GCC)
   configuration: --enable-memalign-hack --arch=x86 --enable-gpl --enable-
 libx264 --enable-avisynth --enable-libxvid --target-os=mingw32 --cross-
 prefix=/home/rogerdpack/dev/ffmpeg-windows-build-
 helpers/builds/mingw-w64-i686/bin/i686-w64-mingw32- --pkg-config=pkg-
 config --enable-libmp3lame --enable-version3 --enable-libvo-aacenc
 --enable-libvpx --extra-libs=-lws2_32 --extra-libs=-lpthread --enable-zlib
 --extra-libs=-lwinmm --extra-libs=-lgdi32 --enable-librtmp --enable-
 libvorbis --enable-libtheora --enable-libspeex --enable-libopenjpeg
 --enable-gnutls --enable-libgsm --enable-libfreetype --disable-
 optimizations --enable-mmx --disable-postproc --enable-runtime-cpudetect
   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. 14.100 /  3. 14.100
   libswscale      2.  1.101 /  2.  1.101
   libswresample   0. 15.100 /  0. 15.100
 [wav @ 020D7BE0] max_analyze_duration 5000000 reached at 5034667
 Guessed Channel Layout for  Input Stream #0.0 : mono
 Input #0, wav, from 'yo.wav':
   Duration: 00:00:53.29, bitrate: 768 kb/s
     Stream #0:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 48000 Hz, mono,
 s16, 768 kb/s
 Output #0, wav, to 'yo10.wav':
   Metadata:
     encoder         : Lavf54.25.104
     Stream #0:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 48000 Hz, mono,
 s16, 768 kb/s
 Stream mapping:
   Stream #0:0 -> #0:0 (pcm_s16le -> pcm_s16le)
 Press [q] to stop, [?] for help
 size=     940kB time=00:00:10.02 bitrate= 768.0kbits/s
 video:0kB audio:940kB subtitle:0 global headers:0kB muxing overhead
 0.004779%

 c:\vids>ffplay -ac 2 yo10.wav
 ffplay version N-43886-g5ac603d Copyright (c) 2003-2012 the FFmpeg
 developers
   built on Aug 29 2012 06:12:51 with gcc 4.7.1 (GCC)
   configuration: --enable-memalign-hack --arch=x86 --enable-gpl --enable-
 libx264 --enable-avisynth --enable-libxvid --target-os=mingw32 --cross-
 prefix=/home/rogerdpack/dev/ffmpeg-windows-build-
 helpers/builds/mingw-w64-i686/bin/i686-w64-mingw32- --pkg-config=pkg-
 config --enable-libmp3lame --enable-version3 --enable-libvo-aacenc
 --enable-libvpx --extra-libs=-lws2_32 --extra-libs=-lpthread --enable-zlib
 --extra-libs=-lwinmm --extra-libs=-lgdi32 --enable-librtmp --enable-
 libvorbis --enable-libtheora --enable-libspeex --enable-libopenjpeg
 --enable-gnutls --enable-libgsm --enable-libfreetype --enable-runtime-
 cpudetect
   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
 Input #0, wav, from 'yo10.wav':
   Duration: 00:00:10.02, bitrate: 768 kb/s
     Stream #0:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 48000 Hz, 2
 channels, s16, 1536 kb/s
    5.33 A-V:  0.000 fd=   0 aq=    0KB vq=    0KB sq=    0B f=0/0
 }}}

-- 
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/1704>
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