166 lines
3.6 KiB
C++
166 lines
3.6 KiB
C++
/*
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* Copyright (C) 2003-2013 The Music Player Daemon Project
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* http://www.musicpd.org
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include "config.h"
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#include "ExtM3uPlaylistPlugin.hxx"
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#include "PlaylistPlugin.hxx"
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#include "song.h"
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#include "tag.h"
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#include "util/StringUtil.hxx"
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extern "C" {
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#include "text_input_stream.h"
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}
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#include <glib.h>
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#include <string.h>
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#include <stdlib.h>
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struct ExtM3uPlaylist {
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struct playlist_provider base;
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struct text_input_stream *tis;
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};
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static struct playlist_provider *
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extm3u_open_stream(struct input_stream *is)
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{
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ExtM3uPlaylist *playlist = g_new(ExtM3uPlaylist, 1);
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playlist->tis = text_input_stream_new(is);
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const char *line = text_input_stream_read(playlist->tis);
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if (line == NULL || strcmp(line, "#EXTM3U") != 0) {
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/* no EXTM3U header: fall back to the plain m3u
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plugin */
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text_input_stream_free(playlist->tis);
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g_free(playlist);
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return NULL;
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}
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playlist_provider_init(&playlist->base, &extm3u_playlist_plugin);
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return &playlist->base;
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}
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static void
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extm3u_close(struct playlist_provider *_playlist)
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{
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ExtM3uPlaylist *playlist = (ExtM3uPlaylist *)_playlist;
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text_input_stream_free(playlist->tis);
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g_free(playlist);
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}
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/**
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* Parse a EXTINF line.
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*
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* @param line the rest of the input line after the colon
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*/
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static struct tag *
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extm3u_parse_tag(const char *line)
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{
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long duration;
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char *endptr;
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const char *name;
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struct tag *tag;
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duration = strtol(line, &endptr, 10);
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if (endptr[0] != ',')
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/* malformed line */
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return NULL;
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if (duration < 0)
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/* 0 means unknown duration */
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duration = 0;
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name = strchug_fast_c(endptr + 1);
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if (*name == 0 && duration == 0)
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/* no information available; don't allocate a tag
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object */
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return NULL;
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tag = tag_new();
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tag->time = duration;
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/* unfortunately, there is no real specification for the
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EXTM3U format, so we must assume that the string after the
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comma is opaque, and is just the song name*/
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if (*name != 0)
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tag_add_item(tag, TAG_NAME, name);
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return tag;
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}
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static struct song *
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extm3u_read(struct playlist_provider *_playlist)
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{
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ExtM3uPlaylist *playlist = (ExtM3uPlaylist *)_playlist;
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struct tag *tag = NULL;
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const char *line;
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struct song *song;
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do {
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line = text_input_stream_read(playlist->tis);
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if (line == NULL) {
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if (tag != NULL)
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tag_free(tag);
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return NULL;
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}
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if (g_str_has_prefix(line, "#EXTINF:")) {
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if (tag != NULL)
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tag_free(tag);
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tag = extm3u_parse_tag(line + 8);
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continue;
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}
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while (*line != 0 && g_ascii_isspace(*line))
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++line;
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} while (line[0] == '#' || *line == 0);
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song = song_remote_new(line);
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song->tag = tag;
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return song;
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}
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static const char *const extm3u_suffixes[] = {
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"m3u",
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NULL
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};
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static const char *const extm3u_mime_types[] = {
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"audio/x-mpegurl",
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NULL
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};
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const struct playlist_plugin extm3u_playlist_plugin = {
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"extm3u",
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nullptr,
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nullptr,
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nullptr,
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extm3u_open_stream,
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extm3u_close,
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extm3u_read,
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nullptr,
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extm3u_suffixes,
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extm3u_mime_types,
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};
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