test/read_rva2: new debug program for the RVA2 library

Makefile.am

@@ -999,6 +999,10 @@ noinst_PROGRAMS = \
 	test/run_normalize \
 	test/software_volume
 
+if HAVE_ID3TAG
+noinst_PROGRAMS += test/dump_rva2
+endif
+
 if HAVE_ALSA
 # this debug program is still ALSA specific
 noinst_PROGRAMS += test/read_mixer
@@ -1116,6 +1120,17 @@ test_read_tags_SOURCES = test/read_tags.c \
 	src/timer.c \
 	$(DECODER_SRC)
 
+if HAVE_ID3TAG
+test_dump_rva2_LDADD = \
+	$(ID3TAG_LIBS) \
+	$(GLIB_LIBS)
+test_dump_rva2_SOURCES = test/dump_rva2.c \
+	src/riff.c src/aiff.c \
+	src/tag_handler.c \
+	src/tag_id3.c \
+	src/tag_rva2.c
+endif
+
 test_run_ntp_server_LDADD = \
 	$(GLIB_LIBS)
 test_run_ntp_server_SOURCES = test/run_ntp_server.c \

test/dump_rva2.c

@@ -0,0 +1,109 @@
+/*
+ * Copyright (C) 2003-2012 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.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include "config.h"
+#include "tag_id3.h"
+#include "tag_rva2.h"
+#include "replay_gain_info.h"
+#include "conf.h"
+#include "tag.h"
+
+#include <id3tag.h>
+
+#ifdef HAVE_LOCALE_H
+#include <locale.h>
+#endif
+
+#include <stdlib.h>
+
+const char *
+config_get_string(G_GNUC_UNUSED const char *name, const char *default_value)
+{
+	return default_value;
+}
+
+struct tag *
+tag_new(void)
+{
+	return NULL;
+}
+
+void
+tag_add_item_n(G_GNUC_UNUSED struct tag *tag, G_GNUC_UNUSED enum tag_type type,
+	       G_GNUC_UNUSED const char *value, G_GNUC_UNUSED size_t len)
+{
+}
+
+void
+tag_free(struct tag *tag)
+{
+	g_free(tag);
+}
+
+int main(int argc, char **argv)
+{
+	GError *error = NULL;
+
+#ifdef HAVE_LOCALE_H
+	/* initialize locale */
+	setlocale(LC_CTYPE,"");
+#endif
+
+	if (argc != 2) {
+		g_printerr("Usage: read_rva2 FILE\n");
+		return 1;
+	}
+
+	const char *path = argv[1];
+
+	struct id3_tag *tag = tag_id3_load(path, &error);
+	if (tag == NULL) {
+		if (error != NULL) {
+			g_printerr("%s\n", error->message);
+			g_error_free(error);
+		} else
+			g_printerr("No ID3 tag found\n");
+
+		return EXIT_FAILURE;
+	}
+
+	struct replay_gain_info replay_gain;
+	replay_gain_info_init(&replay_gain);
+
+	bool success = tag_rva2_parse(tag, &replay_gain);
+	id3_tag_delete(tag);
+
+	if (!success) {
+		g_printerr("No RVA2 tag found\n");
+		return EXIT_FAILURE;
+	}
+
+	const struct replay_gain_tuple *tuple =
+		&replay_gain.tuples[REPLAY_GAIN_ALBUM];
+	if (replay_gain_tuple_defined(tuple))
+		g_printerr("replay_gain[album]: gain=%f peak=%f\n",
+			   tuple->gain, tuple->peak);
+
+	tuple = &replay_gain.tuples[REPLAY_GAIN_TRACK];
+	if (replay_gain_tuple_defined(tuple))
+		g_printerr("replay_gain[track]: gain=%f peak=%f\n",
+			   tuple->gain, tuple->peak);
+
+	return EXIT_SUCCESS;
+}