core rewrite (decode,player,outputBuffer,playlist)

This is a huge refactoring of the core mpd process.  The
queueing/buffering mechanism is heavily reworked.

The player.c code has been merged into outputBuffer (the actual
ring buffering logic is handled by ringbuf.c); and decode.c
actually handles decoding stuff.

The end result is several hundreds of lines shorter, even though
we still have a lot of DEBUG statements left in there for
tracing and a lot of assertions, too.

1 files changed, 35 insertions, 0 deletions

diff --git a/src/outputBuffer_audio.h b/src/outputBuffer_audio.h
new file mode 100644
index 000000000..2af40c95f
--- /dev/null
+++ b/src/outputBuffer_audio.h
@@ -0,0 +1,35 @@
+/* This is where audio devices are managed inside the output buffer thread */
+
+static int audio_opened;
+
+/*
+ * reopen is set when we get a new song and there's a difference
+ * in audio format
+ */
+static int open_audio_devices(int reopen)
+{
+	assert(pthread_equal(pthread_self(), ob.thread));
+
+	if (!reopen && audio_opened)
+		return 0;
+	if (openAudioDevice(&ob.audio_format) >= 0) {
+		audio_opened = 1;
+		return 0;
+	}
+	audio_opened = 0;
+	stop_playback();
+	player_seterror(PLAYER_ERROR_AUDIO, NULL);
+	ERROR("problems opening audio device\n");
+	return -1;
+}
+
+static void close_audio_devices(void)
+{
+	assert(pthread_equal(pthread_self(), ob.thread));
+	DEBUG(__FILE__":%s %d\n", __func__, __LINE__);
+	dropBufferedAudio();
+	closeAudioDevice();
+	audio_opened = 0;
+	/* DEBUG(__FILE__":%s %d\n", __func__, __LINE__); */
+}
+