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CC-3564: Sometimes Airtime output stream goes silent when it is playing and we are shuffling tracks around. 

-fixed
This commit is contained in:
Martin Konecny 2012-03-30 15:15:34 -04:00
parent f6d52d271e
commit 7045a4bd95
1 changed files with 19 additions and 4 deletions
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23
python_apps/pypo/pypopush.py
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@ -75,12 +75,12 @@ class PypoPush(Thread):
current_chain = self.get_current_chain(chains)
if len(current_chain) > 0 and len(liquidsoap_queue_approx) == 0:
#Something is scheduled but Liquidsoap is not playing anything!
#Need to schedule it immediately
#Need to schedule it immediately..this might happen if Liquidsoap crashed.
self.modify_cue_point_of_first_link(current_chain)
next_media_item_chain = current_chain
time_until_next_play = 0
else:
self.handle_new_media_schedule(media_schedule, liquidsoap_queue_approx)
self.handle_new_media_schedule(media_schedule, liquidsoap_queue_approx, current_chain)
chains = self.get_all_chains(media_schedule)
next_media_item_chain = self.get_next_schedule_chain(chains)
self.logger.debug("Next schedule chain: %s", next_media_item_chain)
@ -155,7 +155,7 @@ class PypoPush(Thread):
return liquidsoap_queue_approx
def handle_new_media_schedule(self, media_schedule, liquidsoap_queue_approx):
def handle_new_media_schedule(self, media_schedule, liquidsoap_queue_approx, current_chain):
"""
This function's purpose is to gracefully handle situations where
Liquidsoap already has a track in its queue, but the schedule
@ -164,12 +164,24 @@ class PypoPush(Thread):
queue.
"""
problem_at_iteration = self.find_removed_items(media_schedule, liquidsoap_queue_approx)
if problem_at_iteration is None and len(current_chain) > len(liquidsoap_queue_approx):
self.logger.debug("New schedule has longer current chain.")
problem_at_iteration = len(liquidsoap_queue_approx)
if problem_at_iteration is not None:
self.logger.debug("Change in chain at link %s", problem_at_iteration)
self.push_to_liquidsoap(current_chain[problem_at_iteration:])
def find_removed_items(self, media_schedule, liquidsoap_queue_approx):
#iterate through the items we got from the liquidsoap queue and
#see if they are the same as the newly received schedule
iteration = 0
problem_at_iteration = None
for queue_item in liquidsoap_queue_approx:
if queue_item['start'] in media_schedule.keys():
if queue_item['id'] == media_schedule[queue_item['start']]['id']:
#Everything OK for this iteration.
@ -194,6 +206,9 @@ class PypoPush(Thread):
#queue, and push the new schedule
self.logger.debug("Problem at iteration %s", problem_at_iteration)
self.remove_from_liquidsoap_queue(problem_at_iteration, liquidsoap_queue_approx)
return problem_at_iteration
def get_all_chains(self, media_schedule):