Commits the C source code of a refining of the automatic audio device selection to pick up devices from the same hardware.

Changes needed for android merge. Exposing several bundle contexts. Some public constants. Changes in sound notifications to use String as resource uri, and obtaining resource input stream and stream format info from AudioSystem, so it can be overridden in different implementations.

Activates microphone sensibility modification via Windows CoreAudio (adds 32bits version only for Vista/7/8).

Activates microphone sensibility modification via Windows CoreAudio (64bits version only for Vista/7/8).

Work in progress using Windows CoreAudio API to set the input device volume (hardware microphone sensibility).

Fixes freezes in Pa_ReadStream, Pa_StopStream and Pa_WriteStream and incorrect causes of paInvalidChannelCount errors in PortAudio on Windows/WMME. Mitigates an issue with hightened CPU usage (on all supported operating systems) related to hotplug.

Commits the C source code of a fix of a memory corruption in the FFmpeg JNI library caused by the use of strdup instead of av_strdup.

Commits work in progress on updating to FFmpeg 1.0. The C source code of the FFmpeg JNI library is modified to use vanilla FFmpeg 1.0.

- Removes the DirectSound support from PortAudio in order to prevent issues with bad audio quality.
- Attempts to recognize USB PortAudio devices on Windows as such, ignores the virtual Microsoft Sound Mapper devices to avoid user confusion. Contributed by Vincent Lucas.

Adds an Opus configuration form and changes the default Opus settings. Updates the Opus JNI binaries. Notifies encoders that implement PacketLossAwareEncoder (Opus and SILK) of packet loss information received via RTCP.

- Prevents a NullPointerException in ice4j's Connector#stop() which appears quite often with unknown side effects.
- Prevents a NullPointerException in ToolsMenu related to the Jitsi VideoBridge menu item which causes of long chain of other exceptions and, eventually, prevents the application from completing its startup.
- Moves the C source code of JNI PortAudio library from Jitsi/net.java.sip.communicator to libjitsi/org.jitsi. Removes a couple of Java method and C function implementations each of which repeats three times. Fixes possible cases of leaving native callback threads which have been attached to the JVM in undetermined states.

Improves device selection via portaudio for MacOSX (hostapi coreaudio): adds the possibility to get the device transport type (USB, bluetooth, etc.) and an unique identifier. Corrects problems when: loading the same device twice (for the moment only for the same hostapi), a new plugged device is selected during a call or if the selected device is unchanged.

Adds support for the IETF Opus codec (patch by Boris Grozev). Fixes a problem that prevented Jitsi from using formats that are disabled by default (pach by Boris Grozev)

Fixes a failure to keep the aspect ratio of the video when switching to full screen. Attempts to remedy a multi-video display when switching between camera and desktop streaming. Tries to fix a crash in the QTKit video capture on Mac OS X. Works on addressing a unnecessary remaining of the camera on Mac OS X open.

Re-applies the ideas of r9718 with a refined implementation on the PulseAudio Renderer in order to reflect changes to the user's choice with respect to the default playback device while in a call.

Commits an initial version of the libjitsi library which should be fully functional with respect to neomedia/MediaService and should be usable with and without OSGi.