[alsa-devel] How to capture audio stream written on devices

Hi. I would like to capture the audio stream that is written on a device. For example in OSS I will have to redefine ioctl() and some others functions. What I have to do to capture audio streams using ALSA? And for example sending them via a socket while capturing?

I have to specify that I cannot use JACK, I have to capture audio before it is written on dev/abc.

Best regards,

Marco