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authorMax Kellermann <max@duempel.org>2009-11-06 00:41:42 +0100
committerMax Kellermann <max@duempel.org>2009-11-06 00:41:42 +0100
commitf3203b5de50dd40e014fd4d3829b8bc172976649 (patch)
treee7465b156c1ec425068947a418dfd9782ddc6798 /src/playlist
parent65e56ff8291b4bc43900c7b80a86e6d39ed7a847 (diff)
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playlist: added extm3u plugin
This new plugin parses extm3u files. Files without the "#EXTM3U" header are still parsed by the plain old "m3u" plugin.
Diffstat (limited to 'src/playlist')
-rw-r--r--src/playlist/extm3u_playlist_plugin.c160
-rw-r--r--src/playlist/extm3u_playlist_plugin.h25
2 files changed, 185 insertions, 0 deletions
diff --git a/src/playlist/extm3u_playlist_plugin.c b/src/playlist/extm3u_playlist_plugin.c
new file mode 100644
index 000000000..3f55e5ad4
--- /dev/null
+++ b/src/playlist/extm3u_playlist_plugin.c
@@ -0,0 +1,160 @@
+/*
+ * Copyright (C) 2003-2009 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 "playlist/extm3u_playlist_plugin.h"
+#include "playlist_plugin.h"
+#include "text_input_stream.h"
+#include "uri.h"
+#include "song.h"
+#include "tag.h"
+
+#include <glib.h>
+
+#include <string.h>
+#include <stdlib.h>
+
+struct extm3u_playlist {
+ struct playlist_provider base;
+
+ struct text_input_stream *tis;
+};
+
+static struct playlist_provider *
+extm3u_open_stream(struct input_stream *is)
+{
+ struct extm3u_playlist *playlist;
+ const char *line;
+
+ playlist = g_new(struct extm3u_playlist, 1);
+ playlist->tis = text_input_stream_new(is);
+
+ line = text_input_stream_read(playlist->tis);
+ if (line == NULL || strcmp(line, "#EXTM3U") != 0) {
+ /* no EXTM3U header: fall back to the plain m3u
+ plugin */
+ text_input_stream_free(playlist->tis);
+ g_free(playlist);
+ return NULL;
+ }
+
+ playlist_provider_init(&playlist->base, &extm3u_playlist_plugin);
+ return &playlist->base;
+}
+
+static void
+extm3u_close(struct playlist_provider *_playlist)
+{
+ struct extm3u_playlist *playlist = (struct extm3u_playlist *)_playlist;
+
+ text_input_stream_free(playlist->tis);
+ g_free(playlist);
+}
+
+/**
+ * Parse a EXTINF line.
+ *
+ * @param line the rest of the input line after the colon
+ */
+static struct tag *
+extm3u_parse_tag(const char *line)
+{
+ long duration;
+ char *endptr;
+ const char *name;
+ struct tag *tag;
+
+ duration = strtol(line, &endptr, 10);
+ if (endptr[0] != ',')
+ /* malformed line */
+ return NULL;
+
+ if (duration < 0)
+ /* 0 means unknown duration */
+ duration = 0;
+
+ name = g_strchug(endptr + 1);
+ if (*name == 0 && duration == 0)
+ /* no information available; don't allocate a tag
+ object */
+ return NULL;
+
+ tag = tag_new();
+ tag->time = 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_add_item(tag, TAG_NAME, name);
+
+ return tag;
+}
+
+static struct song *
+extm3u_read(struct playlist_provider *_playlist)
+{
+ struct extm3u_playlist *playlist = (struct extm3u_playlist *)_playlist;
+ struct tag *tag = NULL;
+ const char *line;
+ struct song *song;
+
+ do {
+ line = text_input_stream_read(playlist->tis);
+ if (line == NULL) {
+ if (tag != NULL)
+ tag_free(tag);
+ return NULL;
+ }
+
+ if (g_str_has_prefix(line, "#EXTINF:")) {
+ if (tag != NULL)
+ tag_free(tag);
+ tag = extm3u_parse_tag(line + 8);
+ continue;
+ }
+
+ while (*line != 0 && g_ascii_isspace(*line))
+ ++line;
+ } while (line[0] == '#' || *line == 0);
+
+ song = song_remote_new(line);
+ song->tag = tag;
+ return song;
+}
+
+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 = {
+ .name = "extm3u",
+
+ .open_stream = extm3u_open_stream,
+ .close = extm3u_close,
+ .read = extm3u_read,
+
+ .suffixes = extm3u_suffixes,
+ .mime_types = extm3u_mime_types,
+};
diff --git a/src/playlist/extm3u_playlist_plugin.h b/src/playlist/extm3u_playlist_plugin.h
new file mode 100644
index 000000000..07f18eafa
--- /dev/null
+++ b/src/playlist/extm3u_playlist_plugin.h
@@ -0,0 +1,25 @@
+/*
+ * Copyright (C) 2003-2009 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_PLAYLIST_EXTM3U_PLAYLIST_PLUGIN_H
+#define MPD_PLAYLIST_EXTM3U_PLAYLIST_PLUGIN_H
+
+extern const struct playlist_plugin extm3u_playlist_plugin;
+
+#endif