wildmidi: new decoder plugin for MIDI files

INSTALL

@@ -101,6 +101,9 @@ For C64 SID support.
 libfluidsynth - http://fluidsynth.resonance.org/
 For MIDI support.
 
+libwildmidi - http://wildmidi.sourceforge.net/
+For MIDI support.
+
 
 Optional Miscellaneous Dependencies
 -----------------------------------

NEWS

@@ -12,6 +12,7 @@ ver 0.15 - (200?/??/??)
   - mikmod disabled by default, due to severe security issues in libmikmod
   - sidplay: new decoder plugin for C64 SID (using libsidplay2)
   - fluidsynth: new decoder plugin for MIDI files (using libfluidsynth)
+  - wildmidi: another decoder plugin for MIDI files (using libwildmidi)
 * audio outputs:
   - shout: enlarged buffer size to 32 kB
   - null: allow disabling synchronization

configure.ac

@@ -422,6 +422,11 @@ AC_ARG_ENABLE(fluidsynth,
 		[enable MIDI support via fluidsynth (default: disable)]),,
 	enable_fluidsynth=no)
 
+AC_ARG_ENABLE(wildmidi,
+	AS_HELP_STRING([--enable-wildmidi],
+		[enable MIDI support via wildmidi (default: disable)]),,
+	enable_wildmidi=no)
+
 AC_ARG_ENABLE(wavpack,
 	AS_HELP_STRING([--disable-wavpack],
 		[disable WavPack support (default: enable)]),
@@ -1038,6 +1043,26 @@ fi
 
 AM_CONDITIONAL(ENABLE_FLUIDSYNTH, test x$enable_fluidsynth = xyes)
 
+if test x$enable_wildmidi = xyes; then
+	oldcflags=$CFLAGS
+	oldlibs=$LIBS
+	oldcppflags=$CPPFLAGS
+
+	AC_CHECK_LIB(WildMidi, WildMidi_Init,,
+		AC_MSG_ERROR([libwildmidi not found]))
+
+	CFLAGS=$oldcflags
+	LIBS=$oldlibs
+	CPPFLAGS=$oldcppflags
+
+	AC_SUBST(WILDMIDI_LIBS,-lWildMidi)
+	AC_SUBST(WILDMIDI_CFLAGS,)
+
+	AC_DEFINE(ENABLE_WILDMIDI, 1, [Define for wildmidi support])
+fi
+
+AM_CONDITIONAL(ENABLE_WILDMIDI, test x$enable_wildmidi = xyes)
+
 
 dnl
 dnl Documentation
@@ -1329,6 +1354,12 @@ else
 	echo " fluidsynth MIDI support .......disabled"
 fi
 
+if test x$enable_wildmidi = xyes; then
+	echo " wildmidi MIDI support .........enabled"
+else
+	echo " wildmidi MIDI support .........disabled"
+fi
+
 if test x$enable_ffmpeg = xyes; then
 	echo " FFMPEG support ................enabled"
 else
@@ -1348,6 +1379,7 @@ if
 	test x$enable_modplug = xno &&
 	test x$enable_sidplay = xno &&
 	test x$enable_fluidsynth = xno &&
+	test x$enable_wildmidi = xno &&
 	test x$enable_mod = xno; then
 	AC_MSG_ERROR([No input plugins supported!])
 fi

src/Makefile.am

@@ -13,6 +13,7 @@ mpd_CPPFLAGS = \
 	$(MODPLUG_CFLAGS) \
 	$(SIDPLAY_CFLAGS) \
 	$(FLUIDSYNTH_CFLAGS) \
+	$(WILDMIDI_CFLAGS) \
 	$(ID3TAG_CFLAGS) \
 	$(MAD_CFLAGS) \
 	$(FFMPEG_CFLAGS) \
@@ -28,6 +29,7 @@ mpd_LDADD = $(MPD_LIBS) \
 	$(MODPLUG_LIBS) \
 	$(SIDPLAY_LIBS) \
 	$(FLUIDSYNTH_LIBS) \
+	$(WILDMIDI_LIBS) \
 	$(ID3TAG_LIBS) \
 	$(MAD_LIBS) \
 	$(MP4FF_LIBS) \
@@ -323,6 +325,10 @@ if ENABLE_FLUIDSYNTH
 mpd_SOURCES += decoder/fluidsynth_plugin.c
 endif
 
+if ENABLE_WILDMIDI
+mpd_SOURCES += decoder/wildmidi_plugin.c
+endif
+
 if HAVE_FFMPEG
 mpd_SOURCES += decoder/ffmpeg_plugin.c
 endif

src/decoder/wildmidi_plugin.c

+/*
+ * Copyright (C) 2003-2009 The Music Player Daemon Project
+ * http://www.musicpd.org
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#include "../decoder_api.h"
+
+#include <glib.h>
+
+#include <wildmidi_lib.h>
+
+#undef G_LOG_DOMAIN
+#define G_LOG_DOMAIN "wildmidi"
+
+enum {
+	WILDMIDI_SAMPLE_RATE = 48000,
+};
+
+static bool
+wildmidi_init(void)
+{
+	int ret;
+
+	ret = WildMidi_Init("/etc/timidity/timidity.cfg",
+			    WILDMIDI_SAMPLE_RATE, 0);
+	return ret == 0;
+}
+
+static void
+wildmidi_finish(void)
+{
+	WildMidi_Shutdown();
+}
+
+static void
+wildmidi_file_decode(struct decoder *decoder, const char *path_fs)
+{
+	static const struct audio_format audio_format = {
+		.sample_rate = WILDMIDI_SAMPLE_RATE,
+		.bits = 16,
+		.channels = 2,
+	};
+	midi *wm;
+	enum decoder_command cmd;
+
+	wm = WildMidi_Open(path_fs);
+	if (wm == NULL)
+		return;
+
+	decoder_initialized(decoder, &audio_format, false, -1);
+
+	do {
+		char buffer[4096];
+		int len;
+
+		len = WildMidi_GetOutput(wm, buffer, sizeof(buffer));
+		if (len <= 0)
+			break;
+
+		cmd = decoder_data(decoder, NULL, buffer, len, 0, 0, NULL);
+	} while (cmd == DECODE_COMMAND_NONE);
+
+	WildMidi_Close(wm);
+}
+
+static struct tag *
+wildmidi_tag_dup(const char *path_fs)
+{
+	struct tag *tag = tag_new();
+
+	/* to be implemented */
+	(void)path_fs;
+
+	return tag;
+}
+
+static const char *const wildmidi_suffixes[] = {
+	"mid",
+	NULL
+};
+
+const struct decoder_plugin wildmidi_decoder_plugin = {
+	.name = "wildmidi",
+	.init = wildmidi_init,
+	.finish = wildmidi_finish,
+	.file_decode = wildmidi_file_decode,
+	.tag_dup = wildmidi_tag_dup,
+	.suffixes = wildmidi_suffixes,
+};

src/decoder_list.c

@@ -36,6 +36,7 @@ extern const struct decoder_plugin modplug_plugin;
 extern const struct decoder_plugin mikmod_decoder_plugin;
 extern const struct decoder_plugin sidplay_decoder_plugin;
 extern const struct decoder_plugin fluidsynth_decoder_plugin;
+extern const struct decoder_plugin wildmidi_decoder_plugin;
 extern const struct decoder_plugin ffmpeg_plugin;
 
 static const struct decoder_plugin *const decoder_plugins[] = {
@@ -78,6 +79,9 @@ static const struct decoder_plugin *const decoder_plugins[] = {
 #ifdef ENABLE_FLUIDSYNTH
 	&fluidsynth_decoder_plugin,
 #endif
+#ifdef ENABLE_WILDMIDI
+	&wildmidi_decoder_plugin,
+#endif
 #ifdef HAVE_FFMPEG
 	&ffmpeg_plugin,
 #endif