FFmpeg fails to autodetect a valid wavpack file

[ahthovaikied]

FFprobe fails to process a specific standard and valid WavPack file I have.

$ ffprobe -loglevel debug problem_file.wv 
ffprobe version 1.2.1 Copyright (c) 2007-2013 the FFmpeg developers
  built on May 12 2013 18:12:31 with gcc 4.6 (Ubuntu/Linaro 4.6.3-1ubuntu5)
  configuration: --enable-gpl --enable-version3 --enable-nonfree --enable-x11grab --disable-encoder=vorbis --disable-encoder=aac --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libfaac --enable-libfdk-aac --enable-librtmp --enable-libmp3lame --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libxvid --enable-libopus --disable-runtime-cpudetect --disable-ffserver --disable-debug --cpu=corei7
  libavutil      52. 18.100 / 52. 18.100
  libavcodec     54. 92.100 / 54. 92.100
  libavformat    54. 63.104 / 54. 63.104
  libavdevice    54.  3.103 / 54.  3.103
  libavfilter     3. 42.103 /  3. 42.103
  libswscale      2.  2.100 /  2.  2.100
  libswresample   0. 17.102 /  0. 17.102
  libpostproc    52.  2.100 / 52.  2.100
[AVIOContext @ 0x3677600] Statistics: 1048576 bytes read, 0 seeks
problem_file.wv: Invalid data found when processing input

The file is a classic 16bits/44.1KHz WavPack file encoded with WavPack 4.60.1.
It can be successfully decoded by WavPack and the checksums match:

$ wvunpack -m problem_file.wv 

 WVUNPACK  Hybrid Lossless Audio Decompressor  Linux Version 4.60.1
 Copyright (c) 1998 - 2009 Conifer Software.  All Rights Reserved.

original md5:  23c4a0ec7272a0ed13b9c4d88d2c7151        
unpacked md5:  23c4a0ec7272a0ed13b9c4d88d2c7151        
restored problem_file.wav in 1.78 secs (lossless, 24.43%)

I tried with ffmpeg:

• 1.2.1
• from git today (version.sh outputs N-53047-ge751481).

I'm on Ubuntu 12.04 64bits, the configure options I use for the custom build can be found above.

I have uploaded the file here (its 33M big): ​problem_file.wv.

[ahthovaikied]

I have also uploaded the truncated file on upload.ffmpeg.org.

[ahthovaikied]

To confirm the file is valid, the soxi utility (from SoX) correctly analyses the file:

$ soxi problem_file.wv

Input File     : 'problem_file.wv'
Channels       : 2
Sample Rate    : 44100
Precision      : 16-bit
Duration       : 00:04:13.08 = 11160828 samples = 18981 CDDA sectors
File Size      : 33.7M
Bit Rate       : 1.07M
Sample Encoding: 16-bit WavPack

[Carl Eugen Hoyos]

$ ffmpeg -i problem_file.wv
ffmpeg version N-53023-gf9db2fc Copyright (c) 2000-2013 the FFmpeg developers
  built on May 13 2013 16:36:16 with gcc 4.7 (SUSE Linux)
  configuration: --enable-gpl --disable-indev=jack --enable-libx264
  libavutil      52. 31.100 / 52. 31.100
  libavcodec     55.  9.100 / 55.  9.100
  libavformat    55.  7.100 / 55.  7.100
  libavdevice    55.  0.100 / 55.  0.100
  libavfilter     3. 65.100 /  3. 65.100
  libswscale      2.  3.100 /  2.  3.100
  libswresample   0. 17.102 /  0. 17.102
  libpostproc    52.  3.100 / 52.  3.100
problem_file.wv: Invalid data found when processing input

[ahthovaikied]

I forgot to add that ffprobe can process all my other WavPack files perfectly fine.

[Carl Eugen Hoyos]

The probe function for flic and the wavpack probe function both trigger for this file, possible patch on mailing list.

[ahthovaikied]

Replying to cehoyos:

The probe function for flic and the wavpack probe function both trigger for this file, possible patch on mailing list.

Confirmed. I tried to apply the patch and it fixes my problem.

How can I know when the patch is applied on git-master?

Thanks :)

[Carl Eugen Hoyos]

Should be fixed, thank you for the sample!