I've looked through the archives and I couldn't find what I'm looking for, so here goes:
I'd like to create a dummy audio device that can record the PCM data written to it into a file. So, the dummy device would appear as a sound card to the audio program (Real Player for example), and start dumping audio into a file, or maybe it would create another device that could be read simply by 'dd' or some custom command. Then I'd pipe the data into an MP3 or OGG encoder, split into 1/2 hour chunks, or whatever length chunks I like.
Once the system is running, I'd do something like this:
1) Open my Player, tune to my favorite station. Use my new device for audio output.
2) do something like: dd if=/dev/audiocapturepcmout count=xxx | lame --output myfile.mp3
What would it take to make a alsa drive that captures the PCM data into a file?
How about one that captures it, then pumps it into a new /dev/ device for reading?
Thanks, -Caleb
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