Hi Christian,
I'm not sure if I can offer useful help for pa_mac_core_old.c; this
was for mac os x 10.2 and older, and I don't have the hardware
anymore thus this one has not been tested for long time. But it used
to work!
Are you able to open the sound device successfully?
Did the sound callbacks get called? It they get called, then we
should at least have some few more bytes in the WAV file.
Another possibility, the 44 bytes file could also be caused by the
file not closed properly, thus the file buffers are not flushed to
the file. This could happen for example if you kill the program with
Ctrl-C instead of letting it quit gracefully.
-benny
Christian Beer wrote:
> Hi List,
>
> (Sorry if this post appears more than once. But I posted it before and
> it doesn't appear. So I try again after signing-on)
>
> trying to get pjmedia working on a arm-device with mac os x, I first
> try to record to a file using recfile. But the resulting wav-file has
> only 44 byte. I am using pa_mac_core_old.c because the mac os x on
> that device doesn't provide AudioUnit.
>
> The problem seems to be (that's my idea, don't know if it is correct)
> that the stream is not opened correctly. I enabled PA_LOG_API_CALLS to
> see what's happening and the following logs appear:
>
> 11:59:38.844 pasound.c PA message: Pa_OpenStream called:
> 11:59:38.846 pasound.c PA message: PaStream** stream:
> 0x0x82948c
> 11:59:38.849 pasound.c PA message: PaStreamParameters
> *inputParameters: 0x0x2ffff9ac
> 11:59:38.851 pasound.c PA message: PaDeviceIndex
> inputParameters->device: 2
> 11:59:38.854 pasound.c PA message: int inputParameters-
>> channelCount: 2
> 11:59:38.856 pasound.c PA message: PaSampleFormat
> inputParameters->sampleFormat: 8
> 11:59:38.859 pasound.c PA message: PaTime
> inputParameters->suggestedLatency: 0.000476
> 11:59:38.861 pasound.c PA message: void *inputParameters-
>> hostApiSpecificStreamInfo: 0x0x0
> 11:59:38.864 pasound.c PA message: PaStreamParameters
> *outputParameters: NULL
> 11:59:38.867 pasound.c PA message: double sampleRate:
> 44100
> 11:59:38.869 pasound.c PA message: unsigned long
> framesPerBuffer: 512
> 11:59:38.872 pasound.c PA message: PaStreamFlags
> streamFlags: 0x1
> 11:59:38.874 pasound.c PA message: PaStreamCallback
> *streamCallback: 0x0x7d90
> 11:59:38.877 pasound.c PA message: void *userData:
> 0x0x829464
>
> the later GetStreamInfo returns:
>
> 11:59:38.919 pasound.c PA message: Pa_GetStreamInfo returned:
> 11:59:38.919 pasound.c PA message: const PaStreamInfo*:
> 0x0x1150d8:
> 11:59:38.919 pasound.c PA message: {
> 11:59:38.919 pasound.c PA message: int
> structVersion: 0
> 11:59:38.920 pasound.c PA message: PaTime
> inputLatency: 0.000000
> 11:59:38.920 pasound.c PA message: PaTime
> outputLatency: 0.000000
> 11:59:38.920 pasound.c PA message: double
> sampleRate: 0.000000
> 11:59:38.920 pasound.c PA message: }
>
> As one can see the sampleRate is zero this time.
>
> What do I do wrong? Is it wrong parameters or is the initialization failing?
>
> Thanks for your help!
>
> Christian Beer
