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gmyth-stream/server/0.2/plugins/transcoders/gmencoder.py
author renatofilho
Thu Apr 26 22:33:00 2007 +0100 (2007-04-26)
branchtrunk
changeset 600 7da2a5e32fa6
parent 589 549c4664701e
child 602 4b0b8c58b532
permissions -rw-r--r--
[svn r606] added suport for multiple files 
     1 import os

     2 import shlex

     3 import signal

     4 import subprocess

     5 

     6 import lib.utils as utils

     7 import lib.server as server

     8 

     9 __all__ = ("TranscoderGMencoder",)

    10 

    11 class TranscoderGMencoder(server.Transcoder):

    12     gmencoder_path = utils.which("gmencoder")

    13     name = "gmencoder"

    14     priority = -1

    15     proc = None

    16 

    17     def __init__(self, params):

    18         server.Transcoder.__init__(self, params)

    19         self.opts = []

    20     # __init__()

    21 

    22     def _insert_param (self, name, value):

    23         if (value != ""):

    24             self.opts.append(name)

    25             self.opts.append(value)

    26 

    27     def _parser_params (self):

    28         self._insert_param("-i", \

    29             "%s://%s" % (self.params_first("uri_prefix", "file"), self.params_first("uri_path", "")))

    30 

    31         #self._insert_param("-i", self.params_first("uri", ""))

    32 

    33         self._insert_param("--video-encode", self.params_first("ve", ""))

    34         self._insert_param("--video-opts", "bitrate=200,pass=2,quantizer=5")

    35         self._insert_param("--video-fps", self.params_first("fps", ""))

    36         self._insert_param("--video-width", self.params_first("width", ""))

    37         self._insert_param("--video-height", self.params_first("height", ""))

    38         self._insert_param("--audio-encode", self.params_first("ae", ""))

    39         self._insert_param("--output-element", "fdsink")

    40     # _parse_params

    41 

    42     def start(self, outfd):

    43         self.opts.append (self.gmencoder_path)

    44         self._parser_params ()

    45         self.opts.append ("--output-opts")

    46         self.opts.append ("fd=%d" % outfd.fileno())

    47 

    48         cmd = " ".join(self.opts)

    49         self.log.info ("GMencoder: %s", cmd)

    50 

    51         try:

    52             self.proc = subprocess.Popen(self.opts, stdin=subprocess.PIPE)

    53         except Exception, e:

    54             self.log.error("Error executing GMencoder: %s" % e)

    55             return False

    56 

    57         try:

    58              self.proc.wait()

    59         except Exception, e:

    60             self.log.error("Problems handling data: %s" % e)

    61             return False

    62 

    63         return True

    64     # start()

    65 

    66 

    67     def stop(self):

    68         if self.proc:

    69             self.log.info ("STOPed GMencoder plugin")

    70             try:

    71                 self.proc.stdin.write ("QUIT\n")

    72             except Exception, e:

    73                 pass

    74 

    75             try:

    76                 self.proc.wait()

    77             except Exception, e:

    78                 pass

    79 

    80             self.proc = None

    81     # stop()

    82 

    83 # TranscoderGMencoder
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