Module Name:	src
Committed By:	kent
Date:		Fri Dec 10 00:30:55 UTC 2004

Modified Files:
	src/sys/dev [kent-audio1]: audio.c audio_if.h audiovar.h

Log Message:
* introduce audio_stream_t, and make audio_ringbuffer a subclass of
  audio_stream_t
* introduce stream_fetcher_t, stream_filter_t, stream_filter_factory_t,
  and stream_filter_list_t.
* Empty stream_filter_list_t instances are passed to audio_hw_if::set_params()

Non-essential changes:
 * represent buffers as uint8_t* instead of u_char*
 * make outp const
 * make the second parameter of audio_hw_if::start_output() const
 * make the second parameter of audio_hw_if::trigger_output() const
 * change types of audio_ringbuffer::{pause,copying,needfill,mmapped}:
   char -> boolean_t
 * change the type of audio_params::sample_rate: u_long -> u_int
   The sample rate is exposed to userland as u_int.
 * typedef audio_params_t


To generate a diff of this commit:
cvs rdiff -r1.184 -r1.184.2.1 src/sys/dev/audio.c
cvs rdiff -r1.54 -r1.54.2.1 src/sys/dev/audio_if.h
cvs rdiff -r1.31 -r1.31.2.1 src/sys/dev/audiovar.h

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.