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/*
* 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 "ExtM3uPlaylistPlugin.hxx"
#include "PlaylistPlugin.hxx"
#include "song.h"
#include "tag.h"
#include "string_util.h"
extern "C" {
#include "text_input_stream.h"
}
#include <glib.h>
#include <string.h>
#include <stdlib.h>
struct ExtM3uPlaylist {
struct playlist_provider base;
struct text_input_stream *tis;
};
static struct playlist_provider *
extm3u_open_stream(struct input_stream *is)
{
ExtM3uPlaylist *playlist = g_new(ExtM3uPlaylist, 1);
playlist->tis = text_input_stream_new(is);
const char *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)
{
ExtM3uPlaylist *playlist = (ExtM3uPlaylist *)_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 = strchug_fast_c(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)
{
ExtM3uPlaylist *playlist = (ExtM3uPlaylist *)_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 = {
"extm3u",
nullptr,
nullptr,
nullptr,
extm3u_open_stream,
extm3u_close,
extm3u_read,
nullptr,
extm3u_suffixes,
extm3u_mime_types,
};
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