Hi, I'm new to ALSA programming so I hope you can excuse me if I say trivial things... I have read various Alsa programming introduction guides and tutorial I found on Alsa-Project web site and Googling... http://www.suse.de/~mana/alsa090_howto.html http://equalarea.com/paul/alsa-audio.html http://www.linuxjournal.com/article/6735 My target is to build a simple C application to: open interface to capture set hardware parameters while there is data to be processed: read pcm data count how many frames have been captured write only 1 frame every 1000 frames captured into a file close interface Reading the programming guides I understand I have to think in term of frames. So, my question is: does exist an ALSA function to count the PCM frames captured and moved to buffer? If I'm not wrong the buffer is divided in periods and each period contain a number of frames. So, the hypothetical PCM_FRAME_COUNT_FUNCTION should work before the frames are passed to the buffer..M'I wrong? If the hypothetical PCM_FRAMES_COUNT_FUNCTION does not exist, does exist an hypothetical PCM_PERIODS_COUNT_FUNCTION? I would like to point out that in my situation is not important to be precise to record on a file a frame every 1000. The number 1000 is the lower threshold, so if the program record on the file a frame every 1023 or 10xx is not relevant to me. I could work with a PCM_PERIODS_COUNT_FUNCTION if it exist! Can you suggest me some ideas and why not..if you can..examples... Thanks for your time and help a newbie, Agata __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com ------------------------------------------------------------------------- Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-devel
