Hi, I think the simpler way is to write a plugin for alsa, which will take place in the plugin chain, just before outputing the sound. The last time i did that, you couldn't do it if using softmix (which has to be directly plugged to hw) but maybe it's possible now... There is a doc written on how to write an ALSA plugin, that should help you do that ;) Regards, -- Ben Michaël Todorovic wrote: >hello, >I want to read the data on the sound card (to do a fft and other >things). I have first tried the capture stream with snd_pcm_readi and >everything is working. My problem is that I want to read the sound >output (pcm or mixer). For example, I want to read the sound that xmms >or mplayer is writing on the sound card. If I just change >SND_PCM_STREAM_CAPTURE to SND_PCM_STREAM_PLAYBACK in snd_pcm_open, >snd_pcm_readi fails. > >So my question is : how can I read the sound output with the alsa-lib ? > >Thank you > >------------------------------------------------------------------------- >Take Surveys. Earn Cash. Influence the Future of IT >Join SourceForge.net's Techsay panel and you'll get the chance to share your >opinions on IT & business topics through brief surveys -- and earn cash >http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV >_______________________________________________ >Alsa-devel mailing list >Alsa-devel@xxxxxxxxxxxxxxxxxxxxx >https://lists.sourceforge.net/lists/listinfo/alsa-devel > > ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys -- and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-devel
