import os
import sys
import lib
import time
import socket
import ConfigParser

class Media:

    def __init__(self, config):

        self.config = config
        self.socket = None
        self.child_pid = None

    def setup(self, filename, mux, vcodec, vbitrate,\
              fps, acodec, abitrate, width, height, port):

        self.filename = filename
        self.mux = mux
        self.vcodec = vcodec
        self.vbitrate = int(vbitrate)
        self.fps = int(fps)
        self.acodec = acodec
        self.abitrate = int(abitrate)
        self.width = int(width)
        self.height = int(height)

        self.port = int(port)

        # good one: /tmp/mpg/cpm.mpg mpeg mpeg1video 400 25 mp2 192 320 240 5000
        self.path = self.config.get("FFmpeg", "path")
        self.path += " -i %s -f %s -vcodec %s -b %d -r %d -acodec %s -ab %d -s %dx%d -" % (
            self.filename, self.mux, self.vcodec, self.vbitrate,\
            self.fps, self.acodec, self.abitrate, self.width, self.height)

        if (self.socket != None):
            del(self.socket)

        self.socket = socket.socket(socket.AF_INET,socket.SOCK_STREAM)
        self.socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
        self.socket.bind( ('', self.port) )
        self.socket.settimeout(10)
        self.socket.listen(1)

    def play(self):

        lib.log("Starting FFmpeg: %s" % self.path)

        # exec FFmpeg and get stdout
        child_stdin, child_stdout = os.popen2(self.path)
        child_stdin.close()

        self.child_pid = os.fork()
        if (self.child_pid == 0):
            #child

            conn,addr= self.socket.accept()
            lib.log("Sending Data to client: %s" % addr[0])
            data = child_stdout.read(1024)
            conn.settimeout(5)
            retry = 0

            while( data != "" and retry < 5):
                try:
                    conn.send(data)
                except socket.error:
                    lib.log("Socket error (maybe timeout ?)")
                    retry = retry + 1

                data = child_stdout.read(1024)

            if (retry < 5):
                lib.log("Finished sending Data to client: %s" % addr[0])
            else:
                lib.log("Client timed out")

            child_stdout.close()
            #conn.close()
            #sys.exit()


    def stop(self):

        if (self.socket != None):
            lib.log("Closing socket")
            self.socket.close()

        lib.log("Trying to stop FFmpeg process")
        if (self.child_pid != None):
            os.kill(self.child_pid, 9)