[FFmpeg-trac] #3557(swresample:new): bug when resampling stereo to stereo

FFmpeg trac at avcodec.org
Mon Apr 14 13:24:25 CEST 2014


#3557: bug when resampling stereo to stereo
-------------------------------------+-------------------------------------
             Reporter:  olegog       |                    Owner:
                 Type:  defect       |                   Status:  new
             Priority:  normal       |                Component:
              Version:  unspecified  |  swresample
             Keywords:               |               Resolution:
             Blocking:               |               Blocked By:
Analyzed by developer:  0            |  Reproduced by developer:  0
-------------------------------------+-------------------------------------

Comment (by olegog):

 f:\>ffmpeg -i 02.mp3 -ar 8000 -ac 2 out.wav
 ffmpeg version N-62439-g5e379cd Copyright (c) 2000-2014 the FFmpeg
 developers
   built on Apr 13 2014 22:01:33 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-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame
 --ena
 ble-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg
 --enable-l
 ibopus --enable-librtmp --enable-libschroedinger --enable-libsoxr
 --enable-libsp
 eex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-
 libvo-aa
 cenc --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-
 libwavp
 ack --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid
 --enable
 -zlib
   libavutil      52. 76.100 / 52. 76.100
   libavcodec     55. 58.103 / 55. 58.103
   libavformat    55. 37.100 / 55. 37.100
   libavdevice    55. 13.100 / 55. 13.100
   libavfilter     4.  4.100 /  4.  4.100
   libswscale      2.  6.100 /  2.  6.100
   libswresample   0. 18.100 /  0. 18.100
   libpostproc    52.  3.100 / 52.  3.100
 [mp3 @ 02c8eca0] Header missing
 [mp3 @ 02c8aba0] Estimating duration from bitrate, this may be inaccurate
 Input #0, mp3, from '02.mp3':
   Duration: 00:00:39.93, start: 0.000000, bitrate: 128 kb/s
     Stream #0:0: Audio: mp3, 44100 Hz, stereo, s16p, 128 kb/s
 Output #0, wav, to 'out.wav':
   Metadata:
     ISFT            : Lavf55.37.100
     Stream #0:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 8000 Hz,
 stereo, s16,
  256 kb/s
 Stream mapping:
   Stream #0:0 -> #0:0 (mp3 -> pcm_s16le)
 Press [q] to stop, [?] for help
 [mp3 @ 02c8eca0] Header missing
 Error while decoding stream #0:0: Invalid data found when processing input
 size=    1249kB time=00:00:39.99 bitrate= 255.8kbits/s
 video:0kB audio:1249kB subtitle:0kB other streams:0kB global headers:0kB
 muxing
 overhead: 0.006255%

--
Ticket URL: <https://trac.ffmpeg.org/ticket/3557#comment:5>
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