ape: convert to C++

1 files changed, 78 insertions, 0 deletions

diff --git a/src/ApeReplayGain.cxx b/src/ApeReplayGain.cxx
new file mode 100644
index 000000000..0135d1b61
--- /dev/null
+++ b/src/ApeReplayGain.cxx
@@ -0,0 +1,78 @@
+/*
+ * Copyright (C) 2003-2013 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 "ApeReplayGain.hxx"
+#include "ApeLoader.hxx"
+#include "replay_gain_info.h"
+
+#include <glib.h>
+
+#include <string.h>
+#include <stdlib.h>
+
+static bool
+replay_gain_ape_callback(unsigned long flags, const char *key,
+			 const char *_value, size_t value_length,
+			 struct replay_gain_info *info)
+{
+	/* we only care about utf-8 text tags */
+	if ((flags & (0x3 << 1)) != 0)
+		return false;
+
+	char value[16];
+	if (value_length >= sizeof(value))
+		return false;
+
+	memcpy(value, _value, value_length);
+	value[value_length] = 0;
+
+	if (g_ascii_strcasecmp(key, "replaygain_track_gain") == 0) {
+		info->tuples[REPLAY_GAIN_TRACK].gain = atof(value);
+		return true;
+	} else if (g_ascii_strcasecmp(key, "replaygain_album_gain") == 0) {
+		info->tuples[REPLAY_GAIN_ALBUM].gain = atof(value);
+		return true;
+	} else if (g_ascii_strcasecmp(key, "replaygain_track_peak") == 0) {
+		info->tuples[REPLAY_GAIN_TRACK].peak = atof(value);
+		return true;
+	} else if (g_ascii_strcasecmp(key, "replaygain_album_peak") == 0) {
+		info->tuples[REPLAY_GAIN_ALBUM].peak = atof(value);
+		return true;
+	} else
+		return false;
+}
+
+bool
+replay_gain_ape_read(const char *path_fs, struct replay_gain_info *info)
+{
+	bool found = false;
+
+	auto callback = [info, &found]
+		(unsigned long flags, const char *key,
+		 const char *value,
+		 size_t value_length) {
+		found |= replay_gain_ape_callback(flags, key,
+						  value, value_length,
+						  info);
+		return true;
+	};
+
+	return tag_ape_scan(path_fs, callback) && found;
+}