From 9d55b16998b6336bfdd6ea0ae3ac31f8685521f6 Mon Sep 17 00:00:00 2001
From: Tony Miller <mcfiredrill@gmail.com>
Date: Sat, 10 Apr 2010 01:05:16 -0700
Subject: Decoder for game music emulation library.
Supports a number of videogame music formats, more info here:
http://www.fly.net/~ant/libs/audio.html
I wrote this plugin for the latest svn, get it here:
http://code.google.com/p/game-music-emu/source/checkout
---
Makefile.am | 6 ++
configure.ac | 19 ++++++
src/decoder/gme_decoder_plugin.c | 129 +++++++++++++++++++++++++++++++++++++++
src/decoder_list.c | 4 ++
4 files changed, 158 insertions(+)
create mode 100644 src/decoder/gme_decoder_plugin.c
diff --git a/Makefile.am b/Makefile.am
index aa7b70997..86b0246fa 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -411,6 +411,7 @@ DECODER_CFLAGS = \
$(AUDIOFILE_CFLAGS) \
$(LIBMIKMOD_CFLAGS) \
$(MODPLUG_CFLAGS) \
+ $(GME_CFLAGS) \
$(SIDPLAY_CFLAGS) \
$(FLUIDSYNTH_CFLAGS) \
$(WILDMIDI_CFLAGS) \
@@ -426,6 +427,7 @@ DECODER_LIBS = \
$(SNDFILE_LIBS) \
$(AUDIOFILE_LIBS) $(LIBMIKMOD_LIBS) \
$(MODPLUG_LIBS) \
+ $(GME_LIBS) \
$(SIDPLAY_LIBS) \
$(FLUIDSYNTH_LIBS) \
$(WILDMIDI_LIBS) \
@@ -520,6 +522,10 @@ if ENABLE_SNDFILE
DECODER_SRC += src/decoder/sndfile_decoder_plugin.c
endif
+if HAVE_GME
+DECODER_SRC += src/decoder/gme_decoder_plugin.c
+endif
+
# encoder plugins
ENCODER_CFLAGS = \
diff --git a/configure.ac b/configure.ac
index 0c2d694bb..8ae21793a 100644
--- a/configure.ac
+++ b/configure.ac
@@ -527,6 +527,18 @@ if test x$enable_modplug = xyes; then
AC_DEFINE(HAVE_MODPLUG, 1, [Define for modplug support])
fi
+AC_ARG_ENABLE(gme,
+ AS_HELP_STRING([--enable-gme],
+ [enable Blargg's game music emulator plugin]),,
+ enable_gme=auto)
+
+MPD_AUTO_PKG(gme, GME, [libgme],
+ [gme decoder plugin], [libgme not found])
+AM_CONDITIONAL(HAVE_GME, test x$enable_gme = xyes)
+if test x$enable_gme = xyes; then
+ AC_DEFINE(HAVE_GME, 1, [Define for gme support])
+fi
+
AC_ARG_ENABLE(mpc,
AS_HELP_STRING([--disable-mpc],
[disable musepack (MPC) support (default: enable)]),,
@@ -1547,6 +1559,12 @@ else
echo " MODPLUG support ...............disabled"
fi
+if test x$enable_gme = xyes; then
+ echo " GME support ....................enabled"
+else
+ echo " GME support ...................disabled"
+fi
+
if test x$enable_mad = xyes; then
echo " MAD mp3 decoder support .......enabled"
else
@@ -1633,6 +1651,7 @@ if
test x$enable_ffmpeg = xno &&
test x$enable_modplug = xno &&
test x$enable_sidplay = xno &&
+ test x$enable_gme = xno &&
test x$enable_fluidsynth = xno &&
test x$enable_wildmidi = xno &&
test x$enable_mp4 = xno &&
diff --git a/src/decoder/gme_decoder_plugin.c b/src/decoder/gme_decoder_plugin.c
new file mode 100644
index 000000000..4ca1b2eaf
--- /dev/null
+++ b/src/decoder/gme_decoder_plugin.c
@@ -0,0 +1,129 @@
+#include "config.h"
+#include "../decoder_api.h"
+#include "audio_check.h"
+#include <glib.h>
+#include <assert.h>
+#include <gme/gme.h>
+
+#undef G_LOG_DOMAIN
+#define G_LOG_DOMAIN "gme"
+
+#define GME_BUF_SIZE 4096
+
+static void
+gme_file_decode(struct decoder *decoder, const char *path_fs)
+{
+ int sample_rate = 44100;
+ int track = 0; /* index of track to play */
+ float song_len;
+ Music_Emu *emu;
+ gme_info_t *ti;
+ struct audio_format audio_format;
+ enum decoder_command cmd;
+ short buf[GME_BUF_SIZE];
+ const char* gme_err;
+
+ if((gme_err = gme_open_file(path_fs, &emu, sample_rate)) != NULL){
+ g_warning("%s", gme_err);
+ return;
+ }
+ if((gme_err = gme_track_info(emu, &ti, 0)) != NULL){
+ g_warning("%s", gme_err);
+ gme_delete(emu);
+ return;
+ }
+
+ if(ti->length > 0)
+ song_len = ti->length / 1000.0;
+ else song_len = -1;
+
+ /* initialize the MPD decoder */
+
+ GError *error = NULL;
+ if(!audio_format_init_checked(&audio_format, sample_rate, SAMPLE_FORMAT_S16,
+ 2, &error)){
+ g_warning("%s", error->message);
+ g_error_free(error);
+ gme_free_info(ti);
+ gme_delete(emu);
+ return;
+ }
+
+ decoder_initialized(decoder, &audio_format, true, song_len);
+
+ if((gme_err = gme_start_track(emu, track)) != NULL)
+ g_warning("%s", gme_err);
+
+ /* play */
+ do {
+ if((gme_err = gme_play(emu, GME_BUF_SIZE>>1, buf)) != NULL){
+ g_warning("%s", gme_err);
+ return;
+ }
+ cmd = decoder_data(decoder, NULL, buf, GME_BUF_SIZE, 0);
+
+ if(cmd == DECODE_COMMAND_SEEK) {
+ float where = decoder_seek_where(decoder);
+ if((gme_err = gme_seek(emu, (int)where*1000)) != NULL)
+ g_warning("%s", gme_err);
+ decoder_command_finished(decoder);
+ }
+
+ if(gme_track_ended(emu))
+ break;
+ } while(cmd != DECODE_COMMAND_STOP);
+
+ gme_free_info(ti);
+ gme_delete(emu);
+}
+
+static struct tag *
+gme_tag_dup(const char *path_fs)
+{
+ struct tag *tag = tag_new();
+ int sample_rate = 44100;
+ Music_Emu *emu;
+ gme_info_t *ti;
+ const char* gme_err;
+
+ if((gme_err = gme_open_file(path_fs, &emu, sample_rate)) != NULL){
+ g_warning("%s", gme_err);
+ return NULL;
+ }
+ if((gme_err = gme_track_info(emu, &ti, 0)) != NULL){
+ g_warning("%s", gme_err);
+ gme_delete(emu);
+ return NULL;
+ }
+
+ if(ti != NULL){
+ if(ti->length > 0)
+ tag->time = ti->length / 1000;
+ if(ti->song != NULL)
+ tag_add_item(tag, TAG_TITLE, ti->song);
+ if(ti->author != NULL)
+ tag_add_item(tag, TAG_ARTIST, ti->author);
+ if(ti->comment != NULL)
+ tag_add_item(tag, TAG_COMMENT, ti->comment);
+ if(ti->copyright != NULL)
+ tag_add_item(tag, TAG_DATE, ti->copyright);
+ }
+
+ gme_free_info(ti);
+ gme_delete(emu);
+ return tag;
+}
+
+static const char *const gme_suffixes[] = {
+ "ay", "gbs", "gym", "hes", "kss", "nsf",
+ "nsfe", "sap", "spc", "vgm", "vgz",
+ NULL
+};
+
+extern const struct decoder_plugin gme_decoder_plugin;
+const struct decoder_plugin gme_decoder_plugin = {
+ .name = "gme",
+ .file_decode = gme_file_decode,
+ .tag_dup = gme_tag_dup,
+ .suffixes = gme_suffixes,
+};
diff --git a/src/decoder_list.c b/src/decoder_list.c
index 6c8db8fb5..f91d635dc 100644
--- a/src/decoder_list.c
+++ b/src/decoder_list.c
@@ -44,6 +44,7 @@ extern const struct decoder_plugin sidplay_decoder_plugin;
extern const struct decoder_plugin wildmidi_decoder_plugin;
extern const struct decoder_plugin fluidsynth_decoder_plugin;
extern const struct decoder_plugin ffmpeg_decoder_plugin;
+extern const struct decoder_plugin gme_decoder_plugin;
const struct decoder_plugin *const decoder_plugins[] = {
#ifdef HAVE_MAD
@@ -96,6 +97,9 @@ const struct decoder_plugin *const decoder_plugins[] = {
#endif
#ifdef HAVE_FFMPEG
&ffmpeg_decoder_plugin,
+#endif
+#ifdef HAVE_GME
+ &gme_decoder_plugin,
#endif
NULL
};
--
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