[FFmpeg-trac] #2070(undetermined:new): Handling Multichannel BINK

FFmpeg trac at avcodec.org
Thu Dec 27 17:34:43 CET 2012


#2070: Handling Multichannel BINK
-------------------------------------+-------------------------------------
             Reporter:  DJX          |                     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:
 I have a BINK video that has three audio streams. I believe this is
 because it is used in a surround sound environment. I would like to
 purpose a change to the way FFmpeg handles these types of files. In this
 case, they should all be mixed together to produce the correct audio
 output. Currently, on a two channel system, it is missing a lot of the
 audio.

 Additionally, as a work around, I tried the "amerge" filter but it does
 not allow for this type of conversion because the file has more then two
 audio streams.

 FFmpeg & FFplay should be considered here.

 How to reproduce:
 {{{
 ffmpeg -i "flashpoint_load.bik"
 ffmpeg version N-48228-gceee440 Copyright (c) 2000-2012 the FFmpeg
 developers
   built on Dec 27 2012 02:02:43 with gcc 4.7.2 (GCC)
   configuration: --enable-gpl --enable-version3 --disable-w32threads
 --enable-av
 isynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls
 --enab
 le-libass --enable-libbluray --enable-libcaca --enable-libfreetype
 --enable-libg
 sm --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-
 amrwb --e
 nable-libopenjpeg --enable-libopus --enable-librtmp --enable-
 libschroedinger --e
 nable-libtheora --enable-libtwolame --enable-libvo-aacenc --enable-libvo-
 amrwben
 c --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libxavs
 --enable-
 libxvid --enable-zlib
   libavutil      52. 12.100 / 52. 12.100
   libavcodec     54. 81.100 / 54. 81.100
   libavformat    54. 50.102 / 54. 50.102
   libavdevice    54.  3.102 / 54.  3.102
   libavfilter     3. 30.101 /  3. 30.101
   libswscale      2.  1.103 /  2.  1.103
   libswresample   0. 17.102 /  0. 17.102
   libpostproc    52.  2.100 / 52.  2.100
 Input #0, bink, from 'flashpoint_load.bik':
   Duration: 00:00:43.77, start: 0.000000, bitrate: 6393 kb/s
     Stream #0:0: Video: binkvideo (BIKi / 0x694B4942), yuv420p, 1280x720,
 30 tbr
 , 30 tbn, 30 tbc
     Stream #0:1: Audio: binkaudio_dct, 48000 Hz, stereo, fltp
     Stream #0:2: Audio: binkaudio_dct, 48000 Hz, mono, fltp
     Stream #0:3: Audio: binkaudio_dct, 48000 Hz, stereo, fltp
 At least one output file must be specified
 }}}

-- 
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/2070>
FFmpeg <http://ffmpeg.org>
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