On Tue, Apr 18, 2006 at 01:57:57PM +0200, Tobias Urban wrote: > I have already tried the snd_pcm_drain() function but this did not work with > my capture stream. Now I am trying a direct MMAP access - call hesync, > receive pointer, begin, read sample data, commit. However, the official ALSA > example code does not help me a lot because it is only for playback. > Additionally I do not know how the capture works an how to properly read > from it.
The mmap playback and capture interfaces are identical: begin(), read or write, commit(). The easiest way to do what you want is probably to do wait, begin() and commit() all the time to keep the driver happy, and only read the data when you need it. So don't ever stop the driver. For example code, you may read e.g. the C++ class that I wrapped around ALSA mmap access: htttp://users.skynet.be/solaris/linuxaudio and find the link to clalsadrv-1.0.4. -- FA Follie! Follie! Delirio vano e' questo! ------------------------------------------------------- This SF.Net email is sponsored by xPML, a groundbreaking scripting language that extends applications into web and mobile media. Attend the live webcast and join the prime developer group breaking into this new coding territory! http://sel.as-us.falkag.net/sel?cmd=lnk&kid=110944&bid=241720&dat=121642 _______________________________________________ Alsa-user mailing list Alsa-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/alsa-user
