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authorMax Kellermann <max@duempel.org>2014-02-19 08:56:58 +0100
committerMax Kellermann <max@duempel.org>2014-02-19 08:56:58 +0100
commit1cc17bfe7a470c2e2d74466a70ce3723e10baf4a (patch)
tree71823f614a30c0fd5524de23071a4d0fd9f6e633 /src/playlist/cue/CueParser.hxx
parent8ae492dfebbaf26188bf49d264a2633b5041a37b (diff)
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cue/CueParser: move to playlist/
Diffstat (limited to 'src/playlist/cue/CueParser.hxx')
-rw-r--r--src/playlist/cue/CueParser.hxx144
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diff --git a/src/playlist/cue/CueParser.hxx b/src/playlist/cue/CueParser.hxx
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+/*
+ * 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.
+ */
+
+#ifndef MPD_CUE_PARSER_HXX
+#define MPD_CUE_PARSER_HXX
+
+#include "check.h"
+#include "tag/TagBuilder.hxx"
+#include "Compiler.h"
+
+#include <string>
+
+class DetachedSong;
+struct Tag;
+
+class CueParser {
+ enum {
+ /**
+ * Parsing the CUE header.
+ */
+ HEADER,
+
+ /**
+ * Parsing a "FILE ... WAVE".
+ */
+ WAVE,
+
+ /**
+ * Ignore everything until the next "FILE".
+ */
+ IGNORE_FILE,
+
+ /**
+ * Parsing a "TRACK ... AUDIO".
+ */
+ TRACK,
+
+ /**
+ * Ignore everything until the next "TRACK".
+ */
+ IGNORE_TRACK,
+ } state;
+
+ /**
+ * Tags read from the CUE header.
+ */
+ TagBuilder header_tag;
+
+ /**
+ * Tags read for the current song (attribute #current). When
+ * #current gets moved to #previous, TagBuilder::Commit() will
+ * be called.
+ */
+ TagBuilder song_tag;
+
+ std::string filename;
+
+ /**
+ * The song currently being edited.
+ */
+ DetachedSong *current;
+
+ /**
+ * The previous song. It is remembered because its end_time
+ * will be set to the current song's start time.
+ */
+ DetachedSong *previous;
+
+ /**
+ * A song that is completely finished and can be returned to
+ * the caller via cue_parser_get().
+ */
+ DetachedSong *finished;
+
+ /**
+ * Set to true after previous.end_time has been updated to the
+ * start time of the current song.
+ */
+ bool last_updated;
+
+ /**
+ * Tracks whether cue_parser_finish() has been called. If
+ * true, then all remaining (partial) results will be
+ * delivered by cue_parser_get().
+ */
+ bool end;
+
+public:
+ CueParser();
+ ~CueParser();
+
+ /**
+ * Feed a text line from the CUE file into the parser. Call
+ * cue_parser_get() after this to see if a song has been finished.
+ */
+ void Feed(const char *line);
+
+ /**
+ * Tell the parser that the end of the file has been reached. Call
+ * cue_parser_get() after this to see if a song has been finished.
+ * This procedure must be done twice!
+ */
+ void Finish();
+
+ /**
+ * Check if a song was finished by the last cue_parser_feed() or
+ * cue_parser_finish() call.
+ *
+ * @return a song object that must be freed by the caller, or NULL if
+ * no song was finished at this time
+ */
+ DetachedSong *Get();
+
+private:
+ gcc_pure
+ TagBuilder *GetCurrentTag();
+
+ /**
+ * Commit the current song. It will be moved to "previous",
+ * so the next song may soon edit its end time (using the next
+ * song's start time).
+ */
+ void Commit();
+
+ void Feed2(char *p);
+};
+
+#endif