[FFmpeg-user] Right audio channel shifted

[Alex]

Alex wrote
> VLC still said:
> 
> http://s14.directupload.net/images/141014/r7h73d5b.jpg
> 
> One other thing: I checked my database again and I have to verify over 300
> videos which are possibly affected by this bug. Is there a possibility
> with ffmpeg to repair those files automatically or at least see if a file
> is affected. Otherwise I am going to do this job manually via a
> vectorscope. :) 
> 
> Thanks,
> Alex

Okay, when I check the trimmed file with ffmpeg it looks okay:

C:\>ffmpeg -i test_new.mxf
ffmpeg version N-66809-g20df026 Copyright (c) 2000-2014 the FFmpeg
developers
  built on Oct 11 2014 23:42:02 with gcc 4.9.1 (GCC)
  configuration: --enable-gpl --enable-version3 --disable-w32threads
--enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r
--enable-gnutls --enable-iconv --enable-libass --enable-libbluray
--enable-libbs2b --enable-libcaca --enable-libfreetype --enable-libgme
--enable-libgsm --enable-
libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb
--enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus
--enable-librtmp --enable-libschroedinger --enable-libsoxr --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-zlib
  libavutil      54. 10.100 / 54. 10.100
  libavcodec     56.  4.101 / 56.  4.101
  libavformat    56.  9.100 / 56.  9.100
  libavdevice    56.  1.100 / 56.  1.100
  libavfilter     5.  1.103 /  5.  1.103
  libswscale      3.  1.101 /  3.  1.101
  libswresample   1.  1.100 /  1.  1.100
  libpostproc    53.  1.100 / 53.  1.100
[mxf @ 0000000000350280] index entry 5095 + TemporalOffset 1 = 5096, which
is out of bounds
Guessed Channel Layout for  Input Stream #0.1 : mono
Guessed Channel Layout for  Input Stream #0.2 : mono
Input #0, mxf, from 'test_new.mxf':
  Metadata:
    uid             : adab4424-2f25-4dc7-92ff-29bd000b0000
    generation_uid  : adab4424-2f25-4dc7-92ff-29bd000b0001
    company_name    : FFmpeg
    product_name    : OP1a Muxer
    product_version : 56.9.100
    product_uid     : adab4424-2f25-4dc7-92ff-29bd000b0002
    modification_date: 0000-01-01 00:00:00
    timecode        : 00:00:00:00
  Duration: 00:03:32.55, start: 0.000000, bitrate: 52515 kb/s
    Stream #0:0: Video: mpeg2video (4:2:2), yuv422p(tv, bt709), 1920x1080
[SAR 1:1 DAR 16:9], 50000 kb/s, 23.98 fps, 23.98 tbr, 23.98 tbn, 47.95 tbc
    Stream #0:1: Audio: pcm_s24le, 48000 Hz, 1 channels, s32 (24 bit), 1152
kb/s
    Stream #0:2: Audio: pcm_s24le, 48000 Hz, 1 channels, s32 (24 bit), 1152
kb/s

But: "[mxf @ 0000000000350280] index entry 5095 + TemporalOffset 1 = 5096,
which is out of bounds"

What does this mean?

An why does VLC identifies different channel values?

Best,
Alex





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