Valdec doesn't write WAVE_FORMAT_EXTENSIBLE files

[LoRd_MuldeR]

Hello

I'm using Valdec in my Tool "LameXP", which is released under GPL license.

So far it works great. However there is the following problem: It seems Valdec doesn't write WAVE_FORMAT_EXTENSIBLE files when decoding multi-channel AC3 files.

Unfortunately the FLAC encoder doesn't accept those file

Code:

C:\Temp\Wurst>valdec.exe Sample.ac3 -w Test.wav
Opening audio output PCM16 3/2.1 (5.1) 48000...
100.0% Frs: 1075   Err: 0 Time:   0:00.527 Level: 0   dB FPS: 2039 CPU: 17.7%
---------------------------------------
Frames/errors: 1075/0
System time: 527ms
Process time: 530ms
Approx. 1.56% realtime CPU usage

C:\Temp\Wurst>valdec.old.exe Sample.ac3 -w Test.old.wav
Opening audio output PCM16 3/2.1 (5.1) 48000...
100.0% Frs: 1075   Err: 0 Time:   0:00.734 Level: 0   dB FPS: 1464 CPU: 111.4%

---------------------------------------
Frames/errors: 1075/0
System time: 735ms
Process time: 733ms
Approx. 2.16% realtime CPU usage

C:\Temp\Wurst>flac -8 Test.wav

flac 1.2.1, Copyright (C) 2000,2001,2002,2003,2004,2005,2006,2007  Josh Coalson
flac comes with ABSOLUTELY NO WARRANTY.  This is free software, and you are
welcome to redistribute it under certain conditions.  Type `flac' for details.

Test.wav: WARNING: skipping unknown sub-chunk 'JUNK' (use --keep-foreign-metadat
a to keep)
Test.wav: ERROR: WAVE has >2 channels but is not WAVE_FORMAT_EXTENSIBLE; can
not assign channels

C:\Temp\Wurst>flac -8 Test.old.wav

Is there any chance that Valdec will create WAVE_FORMAT_EXTENSIBLE in the future? Or are there any workarounds

Thanks in advance...

[valex]

It's a bug. It should create WAVE_FORMAT_EXTENSIBLE in this case. Thanks for the report..

[valex]

Please, test this one:
http://ac3filter.net/files/download/ac3filter_tools_test0909191736.zip

[LoRd_MuldeR]

Great! It works now as expected

Code:

C:\Temp\Wurst>valdec Sample.ac3 -w Test.wav
Opening audio output PCM16 3/2.1 (5.1) 48000...
100.0% Frs: 1075   Err: 0 Time:   0:00.530 Level: 0   dB FPS: 2028 CPU: 24.9%
---------------------------------------
Frames/errors: 1075/0
System time: 530ms
Process time: 530ms
Approx. 1.56% realtime CPU usage

C:\Temp\Wurst>FLAC -8 Test.wav

flac 1.2.1, Copyright (C) 2000,2001,2002,2003,2004,2005,2006,2007  Josh Coalson
flac comes with ABSOLUTELY NO WARRANTY.  This is free software, and you are
welcome to redistribute it under certain conditions.  Type `flac' for details.

Test.wav: WARNING: skipping unknown sub-chunk 'JUNK' (use --keep-foreign-metadat
a to keep)
Test.wav: wrote 7279953 bytes, ratio=0,372

C:\Temp\Wurst>

Thanks for your help! One question: Should I use this binary for "production" or should I wait for AC3 Filter Tools to be updated officially?

Cheeeeeeeers
MuldeR

[valex]

This package fixes 2 bugs reported yet. One is critical, so I think I will release it in this state.

[LoRd_MuldeR]

Okay. I updated LameXP with the fixed build of valdec. Thanks again!