This adds Andre Adrian's AEC implementation from his intercom project
(http://andreadrian.de/intercom/) as an alternative to the speex echo
cancellation routines. Since the implementation was in C++ and not in
the form of a library, I have converted the code to C and made a local
copy of the implementation.
The implementation actually works on floating point data, so we can
tweak it to work with both integer and floating point samples (currently
we just use S16LE).
Make a new echo-cancel module that exposes a new sink and source. All data sent
to the sink is matched against the data captured from the source and
echo-canceled using the speex echo canceler.
Commits e8cb96c and 0c836aa created mixer paths but did not update
src/Makefile.am. Building a snapshot containing these two commits
therefore results in the user being unable to adjust the volume or
(un)mute through PA. Fix this by adding the two new mixer paths
files to src/Makefile.am.
Likewise, commit 66e1a2d created a profile for the M-Audio FastTrack
Pro USB but did not update src/Makefile.am. Fix this by adding the
profile to src/Makefile.am.
Avahi and dbus is too heavy for OSX just for the sake of publishing our
services via mDNS/Zeroconf. Apple has its own Zeroconf implementation
called Bonjour, and this patch adds a module that implements service
announcement with that API.
All data gathering is copied from module-zeroconf-publish.c, but
unfortunately the code there is too specifically made for avahi, so I
couldn't factor it out to reuse it.
This patch adds support for CoreAudio driven devices under Mac OS X. It
is typically instanciated by the CoreAudio device detection module and
handles all available streams on a specific device.
Sinks are created according to the reported stream configuration.
Float32 is used as default audio sample format at it is the only format
CoreAudio speaks natively.
Hardware volume control is not implemented yet.
This adds a new module for CoreAudio device detection. It registers a
callback to detect hotplugged devices and creates/destroys modules named
'module-coreaudio-device'. Devices are identified via a system-wide
unique AudioDeviceID.
This patch serves two purposes:
1) Allows something other than the de-facto standard udev rules dir or
/lib/udev/rules.d to be used (the udev build system allows you to
customise this)
2) Allows a prefixed, non-root install (right now, the /lib/... path
is hard-coded into the build system
Instead of declaring extra variables for the ALSA profiles and PATHS, and
using EXTRA_DIST for the udev rule, use the dist_ prefix when declaring
them for conditional installation.
This relies on the fact that automake *is* smart enough to know that there
exist *no* conditional dist, and will always distribute all of them.
The current git head does not build without DBus libraries installed.
Does the patch below look suitable?
Thanks,
Daniel
>From f69145fc603c56cef02134ceeba10e1727fa217e Mon Sep 17 00:00:00 2001
From: Daniel Mack <daniel@caiaq.de>
Date: Thu, 8 Oct 2009 14:41:21 +0800
Subject: [PATCH] Makefile.am: fix builds without DBus
Signed-off-by: Daniel Mack <daniel@caiaq.de>
This will be used as the basis for a queryable system for past and present devices, initially for use in KDE.
Currently all this module does is save lists of sinks/sources and their descriptions, so it needs to
gain a protocol extension to make this queryable.
As things stand it will save the device descriptions of all sinks and restore them if they differ from whats on record.
added dbus support
removed cruft from inherited from ladspa module and improved clarity
switched dsp processing to reference implementation until project is more mature
tsched=0 seems to help with the micro-dropouts/crackling! oh my!
reformatting/spaces
