errors in WAV header
--------------------

                 Key: LS-552
                 URL: http://dev.sourcefabric.org/browse/LS-552
             Project: Liquidsoap
          Issue Type: Bug
          Components: Liquidsoap
    Affects Versions: 1.0 beta
         Environment: Liquidsoap 1.0.0-beta2+svn (@644dd3b27614:20110706:175811)

            Reporter: peter


It seems that duration is not encoded in the right way when using reopen_when() 
at 'output.file(%wav())'

test:
output.file( %wav(stereo=true,duration=3600.), "./test_%H:%M.wav", 
reopen_when={0m0s}, mksafe(noise()) )

qwavheaderdump test_16:00.wav
test_16:00.wav (635054156 bytes):
     riff: 'RIFF'
     riff length: -268435457
         riff length field should be 635054148
     wave: 'WAVE'
     fmt: 'fmt '
     fmt length: 16
     format: 1
     channels: 2
     sample rate: 44100
     bytes/second: 176400
     bytes/sample: 4
     bits/sample: 16
     data: 'data'
     data length: -268435493
         data length field should be 635054112

Romain has provided an additional parameter 'duration' (float) at %wav().
Using parameter 'duration' If record is sucessfully finished, length is encoded 
in the right way.

qwavheaderdump test_18:00.wav
test_18:00.wav (635040044 bytes):
        riff: 'RIFF'
        riff length: 635040036
        wave: 'WAVE'
        fmt: 'fmt '
        fmt length: 16
        format: 1
        channels: 2
        sample rate: 44100
        bytes/second: 176400
        bytes/sample: 4
        bits/sample: 16
        data: 'data'
        data length: 635040000

This ticket is written for documentation purposes only.

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