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clean up logging in stream

This commit is contained in:
petrucci4prez 2017-05-31 01:22:44 -04:00
parent 17234848ac
commit f07e583a85
1 changed files with 22 additions and 18 deletions
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40
stream.py
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@ -7,6 +7,9 @@ we make the following assumptions here and optimize as such
- will not need EOS (no mp4s)
- will not require SIGINT (this entire program won't understand them anyways)
- no tags or TOCs
From a logging an error handling standpoint, all 'errors' here are logged as
'critical' which will shut down the entire program and send an email.
"""
from auxilary import async, waitForPath
@ -31,21 +34,25 @@ def gstPrintMsg(pName, frmt, *args, level=logging.DEBUG, sName=None):
else:
logger.log(level, '[{}] '.format(pName) + frmt.format(*args))
def processErrorMessage(pName, sName, msg, level=logging.DEBUG):
def processErrorMessage(pName, sName, msg):
error, debug = msg.parse_error()
if debug:
gstPrintMsg(pName, '{} - Additional debug info: {}', error.message, debug, level=level, sName=sName)
gstPrintMsg(pName, '{} - Additional debug info: {}', error.message, debug,
level=logging.ERROR, sName=sName)
else:
gstPrintMsg(pName, error.message, level=level, sName=sName)
raise GstException(error)
gstPrintMsg(pName, error.message, level=logging.ERROR, sName=sName)
raise GstException
def linkElements(e1, e2, caps=None):
if caps:
if not e1.link_filtered(e2, caps):
raise GstException('cannot link \"{}\" to \"{}\" with caps {}'.format(e1.get_name(), e2.get_name(), caps.to_string()))
logger.error('cannot link \"%s\" to \"%s\" with caps %s',
e1.get_name(), e2.get_name(), caps.to_string())
raise SystemExit
else:
if not e1.link(e2):
raise GstException('cannot link \"{}\" to \"{}\"'.format(e1.get_name(), e2.get_name()))
logger.error('cannot link \%s\" to \"%s\"', e1.get_name(), e2.get_name())
raise SystemExit
def linkTee(tee, *args):
i = 0
@ -114,12 +121,12 @@ def eventLoop(pipeline, block=True, doProgress=False, targetState=Gst.State.PLAY
if debug:
gstPrintMsg(pName, '{} - Additional debug info: {}', error.message,
debug, level=logging.INFO, sName=msgSrcName)
debug, level=logging.WARNING, sName=msgSrcName)
else:
gstPrintMsg(pName, error.message, level=logging.INFO, sName=msgSrcName)
gstPrintMsg(pName, error.message, level=logging.WARNING, sName=msgSrcName)
elif msgType == Gst.MessageType.ERROR:
processErrorMessage(pName, msgSrcName, msg, logging.ERROR)
processErrorMessage(pName, msgSrcName, msg)
elif msgType == Gst.MessageType.STATE_CHANGED:
# we only care about pipeline level state changes
@ -228,8 +235,7 @@ def startPipeline(pipeline, play=True):
eventLoop(pipeline, block=True, doProgress=True, targetState=Gst.State.PAUSED)
except GstException:
gstPrintMsg(pName, 'Does not want to preroll', level=logging.ERROR)
# some cleanup here?
raise
raise SystemExit
elif stateChange == Gst.StateChangeReturn.SUCCESS:
gstPrintMsg(pName, 'Is prerolled')
@ -238,25 +244,23 @@ def startPipeline(pipeline, play=True):
eventLoop(pipeline, block=False, doProgress=True, targetState=Gst.State.PLAYING)
except GstException:
gstPrintMsg(pName, 'Does not want to preroll', level=logging.ERROR)
# some cleanup here?
raise
raise SystemExit
# ...and end up here
else:
if play:
gstPrintMsg(pName, 'Setting to PLAYING', level=logging.INFO)
# and since this will ALWAYS be successful (maybe)...
# ...and since this will ALWAYS be successful...
if pipeline.set_state(Gst.State.PLAYING) == Gst.StateChangeReturn.FAILURE:
gstPrintMsg(pName, 'Cannot set to PLAYING', level=logging.ERROR)
err = pipeline.get_bus().pop_filtered(Gst.MessageType.Error)
processErrorMessage(pName, msgSrcName, err, logging.ERROR)
processErrorMessage(pName, msgSrcName, err)
# ...we and end up here and loop until Tool releases their next album
# ...we end up here and loop until Tool releases their next album
try:
eventLoop(pipeline, block=True, doProgress=False, targetState=Gst.State.PLAYING)
except:
# cleanup or recover
raise
raise GstException
def initCamera(video=True, audio=True):
pipeline = Gst.Pipeline.new("camera")