[Live-devel] Capturing audio from microphone

[Lancerica Laurent-llan1c]

Thanks for answer,

but I still have problem.

Using the Lib (mixer) I've got this error 
audioSource nullFailed to set audio input port number to 0: Bad input port index

I've seen in the mailing list some modification to do in the code, but it still won't work.

So I try to use the lib noMixer. The test program seems to work, but with the following code, the execution run create various object exits (go to afterplaying play and that's all). No data are send on the network, it seems that no data are captured.


Could you help me to try capturing and sending voice capture packets ?


Best Regards
Laurent Lancerica



RTPSink* audioSink;
WindowsAudioInputDevice* audioSource;

int inputPortNumber = 0;
			unsigned char bitsPerSample = 16000;
			unsigned char numChannels = 1;
			unsigned samplingFrequency = 8000;
			unsigned granularityInMS=20;
sessionStateS.audioSource = (WindowsAudioInputDevice*)AudioInputDevice::createNew(*env,inputPortNumber,bitsPerSample,numChannels, samplingFrequency, granularityInMS);
			if (sessionStateS.audioSource == NULL) 
			{
				*env << "audioSource null" 
					 << env->getResultMsg() << "\n";
				exit(1);
			}
			sessionStateS.audioSink->startPlaying(*sessionStateS.audioSource, RTPSender::afterPlaying, sessionStateS.audioSink);

-----Original Message-----
From: live-devel-bounces at ns.live.com
[mailto:live-devel-bounces at ns.live.com]On Behalf Of Ross Finlayson
Sent: Friday, October 08, 2004 7:00 PM
To: LIVE.COM Streaming Media - development & use
Subject: Re: [Live-devel] Capturing audio from microphone



>I a m trying to capture live audio from microphone and try to send on the 
>network using live.
>
>I still have linking problem using WindowsAudioInputDevice.

What specific "linking problems" did you encounter?

If you build "WindowsAudioInputDevice" correctly (from the ".mak" file - 
the same way you build the libraries in the other directories), you should 
end up with two libraries:
         libWindowsAudioInputDevice_noMixer.lib
         libWindowsAudioInputDevice_mixer.lib
You then choose one (not both!) of these libraries to link with.  Then, in 
your application, call
         AudioInputDevice::createNew()
to create an audio input device.  (Setting the "inputPortNumber" parameter 
to 0 will usually get you the microphone; you can also run the 
"showAudioInputPorts_mixer" or "showAudioInputPort_nomixer" applications to 
confirm this.)


	Ross Finlayson
	LIVE.COM
	<http://www.live.com/>

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