#!/usr/bin/env python

__author__ = "Gustavo Sverzut Barbieri / Artur Duque de Souza"

__author_email__ = "barbieri@gmail.com / artur.souza@indt.org.br"

__license__ = "GPL"

__version__ = "0.4"

__all__ = ("Transcoder")

class Transcoder(object):

    """Transcoder's Class: parent class to implement

    a plugin for transcoding data."""

    priority = 0   # negative values have higher priorities

    name = None # to be used in requests

    status = None

    log = None

    tid = -1

    def __init__(self, params):

        self.params = params

    # __init__()

    def params_first(self, key, default=None):

        if default is None:

            return self.params[key][0]

        else:

            try:

                return self.params[key][0]

            except:

                return default

    # params_first()

    def get_mimetype(self):

        mux = self.params_first("mux", "mpg")

        if mux == "mpeg":

            return "video/mpeg"

        elif mux == "avi":

            return "video/x-msvideo"

        else:

            return "application/octet-stream"

    # get_mimetype()

    def start(self, outfile):

        return True

    # start()

    def stop(self):

        return True

    # stop()

    def __str__(self):

        return '%s: %s( params=%s ) - Status: %s%%' % \

               (self.__class__.__name__, self.tid,

                self.params, self.status)

    # __str__()

# Transcoder