mpd/test/dump_rva2.c

/*
 * 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>

#include <glib.h>

#ifdef HAVE_LOCALE_H
#include <locale.h>
#endif

#include <stdlib.h>

const char *
config_get_string(gcc_unused enum ConfigOption option,
		  const char *default_value)
{
	return default_value;
}

struct tag *
tag_new(void)
{
	return NULL;
}

void
tag_add_item_n(gcc_unused struct tag *tag, gcc_unused enum tag_type type,
	       gcc_unused const char *value, gcc_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;
}