Casting std::numeric_limits<unsigned>::max() to "long" leads to an
overflow if sizeof(unsigned)==sizeof(long), and the result will be -1.

This happens on some 32 bit architectures, for example ARM and WIN32.

Workaround: use std::numeric_limits<int>::max(), which is the largest
signed integer.  Since sizeof(long)>=sizeof(int), this will never
overflow.

Fixes Mantis ticket 0004080.

The "current" attribute is a "song order", not a "song position".
This is usually the same - except in random mode.  Fixes Mantis ticket
0004073.

Fix incorrect description of the "songs" field and add missing
"albums" field.
Signed-off-by: Joachim Fasting <joachifm@fastmail.fm>

The unit of gme_info_t::length is milliseconds, not centiseconds.

The previous commit was broken.  D'oh!

The IsActive() method returned true even if the timer was not active,
after it completed once.  This broke the state file timer, and the
state file was not saved periodically.

Same bug as in the previous commit.

When the data chunk size is not a multiple of the frame size, the last
partial frame lead to an endless loop.  We fix this by checking
chunk_sze>=frame instead of chunk_sze>0.  This way, the partial frame
is simply skipped.

According to POSIX and both OSX and Linux manpages,
strcasecmp comes from strings.h, not string.h.

Most OSes also have them available in string.h,
but we just fixed the headers on Haiku and it now
only provides them in strings.h.

We might want to fall back to string.h for other
OSes though...

cf.
http://pubs.opengroup.org/onlinepubs/009695399/functions/strcasecmp.html
http://linux.die.net/man/3/strcasecmp
https://developer.apple.com/library/mac/documentation/Darwin/Reference/ManPages/man3/strcasecmp.3.html

In version 11, both ffmpeg and libav deprecate
AVCodecContext::codec_name.  The function avcodec_descriptor_get() has
been introduced long ago.

This was broken by commit 84d20d9e, which deleted the "!" from the
check.

It happened to me when doing the Haiku port, src/mpd failed to
be relinked properly when editing source files, and likely also
happens on win32, although I didn't try this change.

When building for windows, src_mpd_DEPENDENCIES is overriden.

Automake then disables the default version which contains all
the static libraries. In Makefile.in:
@HAVE_WINDOWS_FALSE@src_mpd_DEPENDENCIES = libmpd.a \

Instead we use EXTRA_src_mpd_DEPENDENCIES which is meant for this.

Failure to read another chunk header is not fatal.  Continue to read
metadata.

Previously, MPD tried to slurp the whole song file, count the number
of frames and calculate the song duration from that.  That however is
extremely expensive for remote files, and will delay playback for a
long time.  Workaround: check only the first 128 frames and try to
extrapolate from here.  Fixes Mantis ticket 0004035.

Eliminate more duplicate code.

Don't bother to check for ADIF just because the stream is not
seekable.

Merge some duplicate code.

Eliminate some overhead when the caller doesn't need the buffer.

Checking the integer is faster, easier and more reliable.

.. instead of declaring a new constant.

Replaces the loop in sndfile_vio_read(), eliminating duplicate and
fragile code.