htt-video/python/feeder/outputfeed.py

62 lines
1.6 KiB
Python

#!/bin/env python2
import os
import threading
from time import sleep
import pygst
pygst.require('0.10')
import gst
from feed import Feed
from config import *
class OutputFeed(Feed):
def __init__(self):
super(OutputFeed, self).__init__(MIXER_PIPE)
def start(self):
if self.is_running():
return
if not os.path.exists(MIXER_PIPE):
print '[%s] not starting because mixer is not running (pipe is missing)' % self._name
return
print '[%s] is starting' % self._name
self._running = True
self._thread = threading.Thread(target=self._run)
self._thread.start()
def _run(self):
src = OUTPUT_SOURCE % {'mixer_pipe' : MIXER_PIPE}
mixer_format = MIXER_FORMAT % {'width' : MIXER_WIDTH, 'height' : MIXER_HEIGHT, 'framerate' : MIXER_FRAMERATE}
screen_output = SCREEN_OUTPUT % {'screen_width' : SCREEN_WIDTH, 'screen_height' : SCREEN_HEIGHT}
network_output = NETWORK_OUTPUT % {'port' : OUTPUT_PORT}
pipeline = '%s ! %s ! queue leaky=2 ! tee name=split ! queue leaky=2 ! %s split. ! queue leaky=2 ! %s' % (src,
mixer_format,
screen_output,
network_output)
print pipeline
self._pipeline = gst.parse_launch(pipeline)
self._pipeline.set_state(gst.STATE_PLAYING)
print "[%s] is playing" % self._name
bus = self._pipeline.get_bus()
msg = bus.timed_pop_filtered(gst.CLOCK_TIME_NONE, gst.MESSAGE_ERROR | gst.MESSAGE_EOS)
print "[%s] %s" % (self._name, msg.parse_error()[1])
self._pipeline.set_state(gst.STATE_NULL)
self._running = False
print "[%s] has stopped" % self._name