ffprobe of plain WAV file fails with "Not a valid DCA frame"

[Leigh Dyer]

I have what should be a fairly plain WAV file -- it's 44.1khz, 16-bit, produced by the "flac" command-line tool, but when I run ffprobe on it, it fails:

leigh@petunia03:~$ /opt/bandcamp/bin/ffprobe -show_streams -show_format testwav1-chopped.wav
ffprobe version 2.2.4 Copyright (c) 2007-2014 the FFmpeg developers
  built on Jul 16 2014 01:05:58 with gcc 4.4.3 (Ubuntu 4.4.3-4ubuntu5.1)
  configuration: --prefix=/opt/bandcamp --disable-ffplay --disable-ffserver --enable-memalign-hack --disable-bsfs --disable-protocols --disable-indevs --disable-outdevs --disable-devices --enable-protocol=file
  libavutil      52. 66.100 / 52. 66.100
  libavcodec     55. 52.102 / 55. 52.102
  libavformat    55. 33.100 / 55. 33.100
  libavdevice    55. 10.100 / 55. 10.100
  libavfilter     4.  2.100 /  4.  2.100
  libswscale      2.  5.102 /  2.  5.102
  libswresample   0. 18.100 /  0. 18.100
[dca @ 0x1b94cc0] Not a valid DCA frame
[dca @ 0x1b94cc0] Invalid LFE value: 0
    Last message repeated 1 times
[dca @ 0x1b94cc0] error decoding block
[dca @ 0x1b94cc0] Invalid LFE value: 0
[wav @ 0x1b941c0] decoding for stream 0 failed
[wav @ 0x1b941c0] Could not find codec parameters for stream 0 (Audio: dts ([1][0][0][0] / 0x0001), 192000 Hz, 2 channels, fltp, 0 kb/s): no decodable DTS frames
Consider increasing the value for the 'analyzeduration' and 'probesize' options
testwav1-chopped.wav: End of file

This seems very similar to ticket #2810 but I assume that a release as recent as 2.2.4 would include that fix. Could it be a regression?

I can't upload the full affected WAV, but I'll upload a 10 second snippet from the start that produces the same error.

Thanks
Leigh

[Carl Eugen Hoyos]

For future tickets: Please always test current FFmpeg git head before reporting problems and please do not report issues against ffprobe (or ffplay) if they are reproducible with ffmpeg (the application).

$ ffmpeg -i testwav1-chopped.wav
ffmpeg version N-64785-gffa0b51 Copyright (c) 2000-2014 the FFmpeg developers
  built on Jul 18 2014 23:16:09 with gcc 4.7 (SUSE Linux)
  configuration: --enable-gpl
  libavutil      52. 92.101 / 52. 92.101
  libavcodec     55. 69.100 / 55. 69.100
  libavformat    55. 48.101 / 55. 48.101
  libavdevice    55. 13.102 / 55. 13.102
  libavfilter     4. 11.102 /  4. 11.102
  libswscale      2.  6.100 /  2.  6.100
  libswresample   0. 19.100 /  0. 19.100
  libpostproc    52.  3.100 / 52.  3.100
[dca @ 0x1c5d520] Not a valid DCA frame
[dca @ 0x1c5d520] Invalid LFE value: 0
    Last message repeated 1 times
[dca @ 0x1c5d520] error decoding block
[dca @ 0x1c5d520] Invalid LFE value: 0
[wav @ 0x1c5cb20] decoding for stream 0 failed
[wav @ 0x1c5cb20] Could not find codec parameters for stream 0 (Audio: dts ([1][0][0][0] / 0x0001), 192000 Hz, 2 channels, fltp, 0 kb/s): no decodable DTS frames
Consider increasing the value for the 'analyzeduration' and 'probesize' options
testwav1-chopped.wav: could not find codec parameters
Guessed Channel Layout for  Input Stream #0.0 : stereo
Input #0, wav, from 'testwav1-chopped.wav':
  Duration: 00:00:10.45, bitrate: 1411 kb/s
    Stream #0:0: Audio: dts ([1][0][0][0] / 0x0001), 192000 Hz, 2 channels, fltp, 0 kb/s
At least one output file must be specified

[Michael Niedermayer]

Fixed in 2b501b553f6300bfec546fe81d2bc0473e43e223