This method is used to reduce the delay of commands issued to the
shout plugin.

When you pass the flag AI_ADDRCONFIG to getaddrinfo(), it does not
consider address families on the loopback device.  When run on a
machine without an external network card, just with "lo", it was
unable to look up any address.

libffado documentation says this function returns -1 on error, but
that is a lie - it returns a boolean value, and "false" means error.

.. instead of av_get_bits_per_sample_format().  The SampleFormat enum
value is authoritative.

Device can be specified either by magic index (starting with 0)
or by device name.

If no device is available test_default_device returns false.

Using libffado, to play on firewire audio devices.

Warning: this plugin was not tested successfully.  I just couldn't
keep libffado2 from crashing.  Use at your own risk.

For details, see my Debian bug reports:

  http://bugs.debian.org/601657
  http://bugs.debian.org/601659

Conflicts:
	NEWS
	configure.ac
	src/input/rewind_input_plugin.c
	src/output/httpd_output_plugin.c

Win32 has many audio APIs. New name is slightly more correct.

This cleanup call is obsolete, since we moved the binding code to
enable()/disable().

Call output_plugin.disable() before output_plugin.finish().  This
ensures that all outputs are properly cleaned up, to make valgrind
happy.

RFC 5334 10.3 defines the MIME type "audio/ogg".  We could use
"application/ogg" as well, but we know for sure that we only emit
audio data.

Original implementation does not handle
	if (...)
		MPD_ERROR("die");
	else
		...
case well. This change fixes handling of such cases.

Replaced all occurrences of g_error() with MPD_ERROR() located in a new header
file 'mpd_error.h'. This macro uses g_critical() to print the error message
and then exits gracefully in contrast to g_error() which would internally call
abort() to produce a core dump.

The macro name is distinctive and allows to find all places with dubious error
handling. The long-term goal is to get rid of MPD_ERROR() altogether. To
facilitate the eventual removal of this macro it was added in a new header
file rather than to an existing header file.

This fixes #2995 and #3007.

Added support for a new optional configuration setting for the httpd output
named "bind_to_address". Setting it to a specific IP address (v4 or v6) will
cause the httpd output to bind to that address exclusively. Supporting
multiple addresses in parallel is future work.

This implements the feature requests #2998 and #2646.

The check was meant to fix an assertion failure, but it was the wrong
way around.  This broke cross-fading most of the time.

According to the mantis bug report 2847, there are several possible
variations of the "album artist" tag:

- "album artist"
- "album_artist"
- "albumartist"

This patch adds support for the latter two.

I've added PIPE_EVENT_SHUTDOWN because calling g_main_loop_quit() do not work when called from another thread.
Main thread was sleeping in g_poll() so I needed some way to wake it up.

By some strange reason call close(event_pipe[0]) in event_pipe_deinit() hangs.
In current implementation that code never reached so that was not a problem :-)
I've added a conditional to leave event_pipe[0] open on Win32.

An '\n' was erroneously inserted in the line containing the state, e.g.
"state: \nplay" instead of "state: play".

Fix for bug #2992.

The assumption that MIME type is set only once is not valid with CURL,
as URL redirections may update the MIME type.

This fixes bug #3044.

htons() is not available if netinet/in.h is not included.

Fix gcc warning.