[FFmpeg-trac] #3335(undetermined:reopened): Audio Rematrix error going from 16ch

[FFmpeg]

#3335: Audio Rematrix error going from 16ch
-------------------------------------+-------------------------------------
             Reporter:               |                    Owner:
  zcybercomputing                    |                   Status:  reopened
                 Type:  defect       |                Component:
             Priority:  important    |  undetermined
              Version:  unspecified  |               Resolution:
             Keywords:               |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
Changes (by zcybercomputing):

 * priority:  normal => important
 * status:  closed => reopened
 * resolution:  needs_more_info =>


Comment:

 I figured out what the problem is.  The file contains a single stream that
 contains 16 channels of audio.  For some reason ffmpeg refuses to
 manipulate this type of audio stream.  This type of setup is very common
 in broadcast video recorders, and an inability to work with it is
 problematic to workflow.

 reference to another user with this problem.
 http://ffmpeg.org/pipermail/ffmpeg-user/2013-October/018067.html

 Example file:
 https://drive.google.com/file/d/0B5GSKNa8Y3Dga05Uc09WRmtwVDg/edit?usp=sharing

 Output:
 Microsoft Windows [Version 6.1.7601]
 Copyright (c) 2009 Microsoft Corporation.  All rights reserved.

 C:\Users\3ABN>"C:\Users\3ABN\Another Gui\ffmpeg-20140115-git-
 785dc14-win64-stati
 c\bin\ffmpeg.exe" -i "F:\test.mov" -y -vcodec prores -profile:v 1 -acodec
 pcm_s1
 6le -ar 48000 -ac 2 "F:\Capture0000test.mov"
 ffmpeg version N-59852-g785dc14 Copyright (c) 2000-2014 the FFmpeg
 developers
   built on Jan 14 2014 22:07:30 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-libxavs --enable-libxvid --enable-zlib
   libavutil      52. 62.100 / 52. 62.100
   libavcodec     55. 48.101 / 55. 48.101
   libavformat    55. 23.103 / 55. 23.103
   libavdevice    55.  5.102 / 55.  5.102
   libavfilter     4.  1.100 /  4.  1.100
   libswscale      2.  5.101 /  2.  5.101
   libswresample   0. 17.104 /  0. 17.104
   libpostproc    52.  3.100 / 52.  3.100
 [mov,mp4,m4a,3gp,3g2,mj2 @ 0000000002947800] Stream #1: not enough frames
 to est
 imate rate; consider increasing probesize
 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'F:\test.mov':
   Metadata:
     creation_time   : 2014-02-21 02:25:06
   Duration: 00:00:02.74, start: 0.000000, bitrate: 81448 kb/s
     Stream #0:0(eng): Video: prores (apch / 0x68637061), yuv422p10le,
 720x486, 6
 2874 kb/s, SAR 10:11 DAR 400:297, 29.97 fps, 29.97 tbr, 30k tbn, 30k tbc
 (defaul
 t)
     Metadata:
       creation_time   : 2014-02-21 02:25:06
       handler_name    : Apple Alias Data Handler
     Stream #0:1(eng): Audio: pcm_s24le (lpcm / 0x6D63706C), 48000 Hz, 16
 channel
 s, s32, 18432 kb/s (default)
     Metadata:
       creation_time   : 2014-02-21 02:25:06
       handler_name    : Apple Alias Data Handler
 [auto-inserted resampler 0 @ 000000000525ac60] [SWR @ 0000000002940900]
 Rematrix
  is needed between 16 channels and stereo but there is not enough
 information to
  do it
 [auto-inserted resampler 0 @ 000000000525ac60] Failed to configure output
 pad on
  auto-inserted resampler 0
 Error opening filters!

 C:\Users\3ABN>

--
Ticket URL: <https://trac.ffmpeg.org/ticket/3335#comment:7>
FFmpeg <https://ffmpeg.org>
FFmpeg issue tracker