Warnings shown for correctly decoded TrueHD sample

[Carl Eugen Hoyos]

​http://thread.gmane.org/gmane.comp.video.ffmpeg.devel/203994
A user provided a TrueHD sample that correctly decodes to 0xFF but shows warnings.

$ ffmpeg -i warnings_cut.thd out.wav
ffmpeg version N-76844-g3885ef0 Copyright (c) 2000-2015 the FFmpeg developers
  built with gcc 4.7 (SUSE Linux)
  configuration: --enable-gpl
  libavutil      55.  9.100 / 55.  9.100
  libavcodec     57. 16.100 / 57. 16.100
  libavformat    57. 19.100 / 57. 19.100
  libavdevice    57.  0.100 / 57.  0.100
  libavfilter     6. 15.100 /  6. 15.100
  libswscale      4.  0.100 /  4.  0.100
  libswresample   2.  0.101 /  2.  0.101
  libpostproc    54.  0.100 / 54.  0.100
Input #0, truehd, from 'warnings_cut.thd':
  Duration: N/A, start: 0.000000, bitrate: N/A
    Stream #0:0: Audio: truehd, 48000 Hz, 7.1, s32 (24 bit)
Output #0, wav, to 'out.wav':
  Metadata:
    ISFT            : Lavf57.19.100
    Stream #0:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 48000 Hz, 7.1, s16 (24 bit), 6144 kb/s
    Metadata:
      encoder         : Lavc57.16.100 pcm_s16le
Stream mapping:
  Stream #0:0 -> #0:0 (truehd (native) -> pcm_s16le (native))
Press [q] to stop, [?] for help
[truehd @ 0x37a0440] Lossless check failed - expected 00, calculated 05.
[truehd @ 0x37a0440] Lossless check failed - expected 00, calculated 08.
[truehd @ 0x37a0440] Lossless check failed - expected 00, calculated 0b.
[truehd @ 0x37a0440] Lossless check failed - expected 00, calculated 08.
[truehd @ 0x37a0440] Lossless check failed - expected 00, calculated 0f.
[truehd @ 0x37a0440] Lossless check failed - expected 00, calculated 08.
[truehd @ 0x37a0440] Lossless check failed - expected 00, calculated 0f.

...

...

[truehd @ 0x37a0440] Lossless check failed - expected 00, calculated 0c.
[truehd @ 0x37a0440] Lossless check failed - expected 00, calculated 09.
[truehd @ 0x37a0440] Lossless check failed - expected 00, calculated 0e.
[truehd @ 0x37a0440] Lossless check failed - expected 00, calculated 0f.
[truehd @ 0x37a0440] Lossless check failed - expected 00, calculated 04.
[truehd @ 0x37a0440] Lossless check failed - expected 00, calculated 03.
[truehd @ 0x37a0440] Lossless check failed - expected 00, calculated 0a.
[truehd @ 0x37a0440] Lossless check failed - expected 00, calculated 01.
[truehd @ 0x37a0440] Lossless check failed - expected 00, calculated 02.
[truehd @ 0x37a0440] Lossless check failed - expected 00, calculated 0a.
[truehd @ 0x37a0440] Lossless check failed - expected 00, calculated 09.
[truehd @ 0x37a0440] Lossless check failed - expected 00, calculated 05.
size=   37956kB time=00:00:50.60 bitrate=6144.0kbits/s
video:0kB audio:37956kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.000262%

[Carl Eugen Hoyos]

Please ignore, I'll open a new ticket...