def convert_playlist(url, source, dest, local_file=True, row={}):
    urls = []
    log.PROC("convert_playlist(", url, source, dest, ")")

    # Leave alone if format matches, or if already "srv" URL, or if not http (local path, mms:/rtsp:)
    if source == dest or source in ("srv", "href") or not re.match("(https?|spdy)://", url):
        return [url]

    # Reuse tempoary files?
    if local_file and conf.reuse_m3u and os.path.exists(tmp_fn(row, dest)):
        log.STAT("reuse temporary filename")
        return [tmp_fn(row, dest)]
    
    # Retrieve from URL
    (mime, cnt) = http_probe_get(url)
    
    # Leave streaming server as is
    if mime == "srv":
        cnt = ""

    if not urls:
        return [url]
    elif dest in ("srv", "href"):
        return urls

    # Otherwise convert to local file
    if local_file:
        fn = tmp_fn(row, dest)
        with open(fn, "w") as f:
            log.DATA("exporting with format:", dest, " into filename:", fn)
            f.write( save_playlist(source="srv", multiply=True).export(urls, row, dest) )
        return [fn]
    else:
        return urls

    # .DESKTOP links
    def desktop(self, rows):
        row = rows[0]
        return "[Desktop Entry]\nVersion=1.0\nIcon=media-playback-start\nType=Link\nName={title}\nComment={playing}\nURL={url}\n".format(**row)



# Generate filename for temporary .pls/m3u, with unique id
def tmp_fn(row, ext="pls"):
    # use original url for generating a hash sum
    stream_url_hash = abs(hash(str(row)))


    try: channelname = main.current_channel

    except: channelname = "unknown"
    # return temp filename
    fn = "%s/%s.%s.%s" % (str(conf.tmp), channelname, stream_url_hash, ext)

    tmp_files.append(fn)
    return fn

# Collect generated filenames
tmp_files = []

# Callback from main / after gtk_main_quit
def cleanup_tmp_files():
    if not int(conf.reuse_m3u):
        [os.remove(fn) for fn in set(tmp_files)]

            #buf = 'uris', urls
            buf = 'text', urls[0]
        # Text sources are assumed to understand the literal URL or expect a description block
        elif info >= 5:
            buf = 'text', "{url}\n# Title: {title}\n# Homepage: {homepage}\n\n".format(**r)
        # Create temporary PLS file, because "text/uri-list" is widely misunderstood and just implemented for file:// IRLs
        else:
            tmpfn = "{}/{}.{}".format(conf.tmp, re.sub("[^\w-]+", " ", r["title"]).strip(), conf.dnd_format)
            cnv.file(rows=[r], dest=conf.dnd_format, fn=tmpfn)
            buf = 'uris', ["file://{}".format(tmpfn)] if (info==4) else tmpfn

        # Keep in type request buffer
        self.buf[info] = buf
        return buf

                del last["share"]
            self.update(last)
            self.migrate()
        # store defaults in file
        else:
            self.save("settings")
            self.firstrun = 1

        # temporary files
        if not os.path.exists(self.tmp):
            os.mkdir(self.tmp)
        
        # add argv
        self.args = self.init_args(argparse.ArgumentParser())
        self.apply_args(self.args)


    # some defaults

        self.plugins = {
             # core plugins, cannot be disabled anyway
            "bookmarks": 1,
            "search": 1,
            "streamedit": 1,
            "configwin": 1,
        }
        self.tmp = os.environ.get("TEMP", "/tmp") + "/streamtuner2"
        self.max_streams = "500"
        self.show_bookmarks = 1
        self.show_favicons = 1
        self.load_favicon = 1
        self.heuristic_bookmark_update = 0
        self.retain_deleted = 0
        self.auto_save_appstate = 1

    # update old setting names
    def migrate(self):
        # 2.1.1
        if "audio/mp3" in self.play:
            self.play["audio/mpeg"] = self.play["audio/mp3"]
            del self.play["audio/mp3"]
        if self.tmp == "/tmp":
            self.tmp = "/tmp/streamtuner2"

         
    # check for existing filename in directory list
    def find_in_dirs(self, dirs, file):
        for d in dirs:
            if os.path.exists(d+"/"+file):
                return d+"/"+file