def dump_dot_file(self, respond, basename='pipeline'):
# GST_DEBUG_DUMP_DOT_DIR=/tmp/
directory = os.environ.get('GST_DEBUG_DUMP_DOT_DIR', None)
if directory:
dotfile = os.path.join(directory, '%s.dot' %basename)
pngfile = os.path.join(directory, '%s.png' %basename)
if os.path.isfile(dotfile):
logging.getLogger('pipeline').debug('Removing existing dotfile %s' %dotfile)
os.remove(dotfile)
if os.path.isfile(dotfile):
logging.getLogger('pipeline').debug('Removing existing pngfile %s' %pngfile)
os.remove(pngfile)
logging.getLogger('pipeline').debug('Dumping graph to %s' %dotfile)
gst.DEBUG_BIN_TO_DOT_FILE(self.pipe, gst.DEBUG_GRAPH_SHOW_ALL, basename)
dot = '/usr/bin/dot'
os.system(dot + " -Tpng -o " + pngfile + " " + dotfile)
logging.getLogger('pipeline').debug('Reading image file')
with open(pngfile, 'r') as content_file:
content = content_file.read()
logging.getLogger('pipeline').debug('Inserting image file to database')
image_id = self.db.images.insert({
"format": "jpg",
"template": "default",
"tags": ["delete"],
"created_at": datetime.datetime.utcnow(),
"data": Binary(content)
})
respond({"temp_dotfile": dotfile, "temp_pngfile": pngfile, "temp_dbpath": "/image.jpg?id="+unicode(image_id)})
else:
logging.getLogger('pipeline').debug("You need to define the GST_DEBUG_DUMP_DOT_DIR env var to dump a .dot graph of the running pipeline")
respond(None)
def on_playbin_state_changed(self, old_state, new_state, pending_state):
gst_logger.debug('Got state-changed message: old=%s new=%s pending=%s',
old_state.value_name, new_state.value_name,
pending_state.value_name)
if new_state == gst.STATE_READY and pending_state == gst.STATE_NULL:
# XXX: We're not called on the last state change when going down to
# NULL, so we rewrite the second to last call to get the expected
# behavior.
new_state = gst.STATE_NULL
pending_state = gst.STATE_VOID_PENDING
if pending_state != gst.STATE_VOID_PENDING:
return # Ignore intermediate state changes
if new_state == gst.STATE_READY:
return # Ignore READY state as it's GStreamer specific
new_state = _GST_STATE_MAPPING[new_state]
old_state, self._audio.state = self._audio.state, new_state
target_state = _GST_STATE_MAPPING[self._audio._target_state]
if target_state == new_state:
target_state = None
logger.debug(
'Audio event: state_changed(old_state=%s, new_state=%s, '
'target_state=%s)', old_state, new_state, target_state)
AudioListener.send('state_changed',
old_state=old_state,
new_state=new_state,
target_state=target_state)
if new_state == PlaybackState.STOPPED:
logger.debug('Audio event: stream_changed(uri=None)')
AudioListener.send('stream_changed', uri=None)
if 'GST_DEBUG_DUMP_DOT_DIR' in os.environ:
gst.DEBUG_BIN_TO_DOT_FILE(self._audio._playbin,
gst.DEBUG_GRAPH_SHOW_ALL, 'mopidy')
def on_message(self, bus, message):
mtype = message.type
# print mtype
if mtype == gst.MESSAGE_ERROR:
err, debug = message.parse_error()
print err
print debug
gst.DEBUG_BIN_TO_DOT_FILE (self.pipeline, gst.DEBUG_GRAPH_SHOW_ALL, \
'transmageddon.dot')
self.emit('got-error', err.message)
elif mtype == gst.MESSAGE_ASYNC_DONE:
self.emit('ready-for-querying')
elif mtype == gst.MESSAGE_EOS:
if (self.multipass != False):
if (self.passcounter == 0):
#removing multipass cache file when done
if os.access(self.cachefile, os.F_OK):
os.remove(self.cachefile)
self.emit('got-eos')
self.pipeline.set_state(gst.STATE_NULL)
elif mtype == gst.MESSAGE_APPLICATION:
self.pipeline.set_state(gst.STATE_NULL)
self.pipeline.remove(self.uridecoder)
return True
def int_handler(self, sig, frame):
try:
gst.DEBUG_BIN_TO_DOT_FILE(self.pipeline, 0, "pipelinedump")
except:
pass
sys.exit(2)