gmyth-stream/server/plugins/transcoders/mencoder_lib/mythtv.py
author renatofilho
Wed Jan 23 20:09:09 2008 +0000 (2008-01-23)
branchtrunk
changeset 893 f9632cb3f1a0
parent 765 57f3de326cd8
permissions -rw-r--r--
[svn r899] release 1.3
     1 import os
     2 import subprocess
     3 import fcntl
     4 
     5 import lib.utils as utils
     6 import lib.server as server
     7 
     8 from select import select
     9 
    10 def _setup_mythfilename(self):
    11     # mythtv:mythtv@192.168.3.110:6543/1002_20070426230000.nuv
    12     try:
    13         _mysql = self.args["input"].split("@")[0].split(":")
    14     except IndexError, e:
    15         _mysql = ["mythtv", "mythtv"]
    16 
    17     try:
    18         _args = self.args["input"].split("@")[1].split(":")
    19     except IndexError, e:
    20         _args = self.args["input"].split(":")
    21 
    22     gmyth_dict = {}
    23     gmyth_dict["mysql"] = _mysql
    24     gmyth_dict["backend"] = _args[0]
    25     gmyth_dict["port"] = _args[1].split("/", 1)[0]
    26 
    27     _tmp_file = _args[1].split("/", 1)[1]
    28 
    29     if _tmp_file.find("channel") >= 0:
    30         gmyth_dict["kind"] = "c"
    31         gmyth_dict["cfile"] = _tmp_file.split("=")[1]
    32     else:
    33         gmyth_dict["kind"] = "f"
    34         gmyth_dict["cfile"] = _tmp_file
    35 
    36     self.args["input"] = "-"
    37     return gmyth_dict
    38 # _setup_mythfilename
    39 
    40 def _setup_mythfile(err):
    41     size = err.readline().split("Size:")[1]
    42     flags = fcntl.fcntl (err, fcntl.F_GETFL, 0) | os.O_NONBLOCK
    43     fcntl.fcntl(err, fcntl.F_SETFL, flags)
    44     return size
    45 # _setup_mythfile
    46 
    47 def _setup_gmythcat(self):
    48     gmyth_cat = utils.which("gmyth-cat")
    49     if self.args.has_key("gmyth-cat"):
    50         return [ utils.which("gmyth-cat"),
    51                  "-h", self.args["gmyth-cat"]["backend"],
    52                  "-p", self.args["gmyth-cat"]["port"],
    53                  "-" + self.args["gmyth-cat"]["kind"],
    54                  self.args["gmyth-cat"]["cfile"]
    55                  ]
    56     else:
    57         self.log.error(self.tid, "Error: URI error")
    58         return []
    59 # _setup_gmythcat
    60 
    61 def start_myth(self, outfd):
    62     opts = _setup_gmythcat(self)
    63     try:
    64         self.gmyth = subprocess.Popen(opts, stdout=subprocess.PIPE,
    65                                       stderr=subprocess.PIPE,
    66                                       close_fds=True)
    67     except Exception, e:
    68         self.log.error(self.tid, "Error: gmyth-cat: %s" % e)
    69         return False
    70 
    71     if not self._run_mencoder(input=self.gmyth.stdout,
    72                               output=subprocess.PIPE):
    73         return False
    74 
    75     if self.args["gmyth-cat"]["kind"] == "f":
    76         try:
    77             size = _setup_mythfile(self.gmyth.stderr)
    78             self.log.debug(self.tid, "Info: Size of file: %s" % size)
    79         except Exception, e:
    80             self.log.error(self.tid, "Error: Problems getting size of"\
    81                            " file: %s" % e)
    82             outfd.write("Error: Problems getting size of file: %s" % e)
    83             return False
    84 
    85     outfd.write("OK     ")
    86 
    87     try:
    88         while self.proc and self.proc.poll() == None:
    89             r, w, x = select([self.gmyth.stderr, self.proc.stdout],
    90                              [], [], 0)
    91             if self.proc.stdout in r:
    92                 d = self.proc.stdout.read(4096)
    93                 outfd.write(d)
    94 
    95             if self.gmyth.stderr in r:
    96                 partial = self.gmyth.stderr.readline()
    97                 if partial != "":
    98                     self.status = utils.progress_bar(int(partial),
    99                                                      int(size), 50)
   100 
   101     except IndexError, e:
   102         pass
   103     except Exception, e:
   104         self.log.error(self.tid, "Error: %s" % e)
   105         return False
   106 
   107     self.log.info(self.tid, "OK: Done")
   108     return True
   109 # _start_myth()