playlist/*: move to playlist/plugins/

1 files changed, 149 insertions, 0 deletions

diff --git a/src/playlist/plugins/ExtM3uPlaylistPlugin.cxx b/src/playlist/plugins/ExtM3uPlaylistPlugin.cxx
new file mode 100644
index 000000000..ac27fb136
--- /dev/null
+++ b/src/playlist/plugins/ExtM3uPlaylistPlugin.cxx
@@ -0,0 +1,149 @@
+/*
+ * Copyright (C) 2003-2014 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 "ExtM3uPlaylistPlugin.hxx"
+#include "../PlaylistPlugin.hxx"
+#include "../SongEnumerator.hxx"
+#include "DetachedSong.hxx"
+#include "tag/Tag.hxx"
+#include "tag/TagBuilder.hxx"
+#include "util/StringUtil.hxx"
+#include "TextInputStream.hxx"
+
+#include <string.h>
+#include <stdlib.h>
+
+class ExtM3uPlaylist final : public SongEnumerator {
+	TextInputStream tis;
+
+public:
+	ExtM3uPlaylist(InputStream &is)
+		:tis(is) {
+	}
+
+	bool CheckFirstLine() {
+		std::string line;
+		return tis.ReadLine(line) &&
+			strcmp(line.c_str(), "#EXTM3U") == 0;
+	}
+
+	virtual DetachedSong *NextSong() override;
+};
+
+static SongEnumerator *
+extm3u_open_stream(InputStream &is)
+{
+	ExtM3uPlaylist *playlist = new ExtM3uPlaylist(is);
+
+	if (!playlist->CheckFirstLine()) {
+		/* no EXTM3U header: fall back to the plain m3u
+		   plugin */
+		delete playlist;
+		return NULL;
+	}
+
+	return playlist;
+}
+
+/**
+ * Parse a EXTINF line.
+ *
+ * @param line the rest of the input line after the colon
+ */
+static Tag
+extm3u_parse_tag(const char *line)
+{
+	long duration;
+	char *endptr;
+	const char *name;
+
+	duration = strtol(line, &endptr, 10);
+	if (endptr[0] != ',')
+		/* malformed line */
+		return Tag();
+
+	if (duration < 0)
+		/* 0 means unknown duration */
+		duration = 0;
+
+	name = strchug_fast(endptr + 1);
+	if (*name == 0 && duration == 0)
+		/* no information available; don't allocate a tag
+		   object */
+		return Tag();
+
+	TagBuilder tag;
+	tag.SetTime(duration);
+
+	/* unfortunately, there is no real specification for the
+	   EXTM3U format, so we must assume that the string after the
+	   comma is opaque, and is just the song name*/
+	if (*name != 0)
+		tag.AddItem(TAG_NAME, name);
+
+	return tag.Commit();
+}
+
+DetachedSong *
+ExtM3uPlaylist::NextSong()
+{
+	Tag tag;
+	std::string line;
+	const char *line_s;
+
+	do {
+		if (!tis.ReadLine(line))
+			return NULL;
+
+		line_s = line.c_str();
+
+		if (StringStartsWith(line_s, "#EXTINF:")) {
+			tag = extm3u_parse_tag(line_s + 8);
+			continue;
+		}
+
+		line_s = strchug_fast(line_s);
+	} while (line_s[0] == '#' || *line_s == 0);
+
+	return new DetachedSong(line_s, std::move(tag));
+}
+
+static const char *const extm3u_suffixes[] = {
+	"m3u",
+	NULL
+};
+
+static const char *const extm3u_mime_types[] = {
+	"audio/x-mpegurl",
+	NULL
+};
+
+const struct playlist_plugin extm3u_playlist_plugin = {
+	"extm3u",
+
+	nullptr,
+	nullptr,
+	nullptr,
+	extm3u_open_stream,
+
+	nullptr,
+	extm3u_suffixes,
+	extm3u_mime_types,
+};