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record.py
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import requests
import m3u8
import time
from datetime import datetime
import sys
import os
import json
import platform
import errno
from processHandeler import ProcessHandeler
class m3u8_receiver:
def get_m3u8(self, url, subject, shouldPrint=True):
# TODO Errorhandeling if internet is lost
er = False
suc = False
total_er = 0
while (er == False and suc == False):
try:
req = requests.get(url, timeout=5)
er = False
except (requests.exceptions.ConnectionError, requests.exceptions.Timeout):
print("m3u8 failed, not able to connect to the server")
er = True
except requests.exceptions.HTTPError:
print("m3u8, HTTP error 4xx 5xx")
er = True
if(er == False):
m = m3u8.loads(req.text)
suc = True
if(shouldPrint):
print(subject + ": Segments: " + str(len(m.data["segments"])) +
", Playlists: " + str(len(m.data["playlists"])))
else:
total_er += 1
if(total_er < 10):
er = False
time.sleep(2)
else:
er = True
return
# TODO Check if er should be and or or
if((len(m.data["segments"]) <= 0 and len(m.data["playlists"]) <= 0) or er == True):
return
return m.data
class Record:
def __init__(self, subject):
self.emne = subject
self.active_Stream = True
self.url_origin = "https://live.uia.no/live/"
self.url_identifier = "ngrp:"+self.emne+"_all/"
self.url_playlist = "/playlist.m3u8?DVR"
self.url_total = self.url_origin + self.url_identifier + self.url_playlist
self.outputFolder = "files/output/"
self.fileName = datetime.now().strftime("%Y_%m_%d_%H_%M_") + self.emne
self.currentMediaSequence = 0
def init(self):
handeler = ProcessHandeler()
handeler.purgePidFile()
self.checkOutputFolder(self.outputFolder+self.emne)
self.active_Stream = True
# m3u8_master = get_m3u8(url_playlist)
handeler.setPidFile(self.emne)
if(not self.emne):
print(
"No subject defined, add the wanted subject to record. Example: python record.py [subject]")
exit()
emne = sys.argv[1]
print(emne)
def checkOutputFolder(self, folder):
if not os.path.exists(folder):
os.makedirs(folder)
def startRecording(self):
self.init()
# emne = subject
print("Starting recoring in: " + self.emne)
self.record()
def record(self):
m = m3u8_receiver()
m3u8_master = m.get_m3u8(self.url_total, self.emne)
if (not m3u8_master is None and len(m3u8_master["playlists"]) > 0):
p_uri = m3u8_master["playlists"][0]["uri"]
lastValue = 0
with open(self.outputFolder+self.emne+"/"+self.fileName+".ts", "wb") as f:
while (self.active_Stream):
seg = m3u8_receiver().get_m3u8(
self.url_origin + self.url_identifier + p_uri, self.emne)
if not seg:
print("The stream seems to be terminated")
self.active_Stream = False
break
else:
timing = 0
startTime = time.time()
if(self.currentMediaSequence == 0):
self.currentMediaSequence = seg["media_sequence"]
startIndex = 0
else:
startIndex = self.currentMediaSequence - \
seg["media_sequence"]
startIndex = startIndex if startIndex >= 0 else 0
i = 0
print(startIndex)
fatal_errors = 0
errors = 0
err = False
while (i < len(seg["segments"]) and fatal_errors < 10):
element = seg["segments"][i]
timing += element["duration"]
i += 1
if (i > startIndex):
print(self.emne + ": " + element["uri"])
try:
r = requests.get(
self.url_origin + self.url_identifier + element["uri"], timeout=(5, 10))
err = False
except (requests.exceptions.ConnectionError, requests.exceptions.Timeout, requests.exceptions.ChunkedEncodingError):
print(
"Failed to connect to the server, trying again in 2 seconds")
errors += 1
err = True
except requests.exceptions.HTTPError:
print("HTTP error 4xx 5xx")
errors += 1
err = True
if(err == False and r.status_code == 200):
f.write(r.content)
lastValue = lastValue + 1
self.currentMediaSequence += 1
errors = 0
elif r.status_code == 404:
print(
self.emne + ": The requested media ("+element["uri"]+") not avalible on the server")
errors += 1
else:
if(errors < 10):
i -= 1 if i > 0 else 0
time.sleep(2)
else:
fatal_errors += 1
# To try to prevent getting caught by the anti bot detection
# FIXME On small file durations the script can not keep up, eventuelly start multithreading
time.sleep(0.2)
elapsedTime = time.time() - startTime
sleepTime = (timing - elapsedTime) / 2
print(self.emne + ": Elapsed time for this m3u8: " +
str(int(elapsedTime)) + "s sleeping for: " + str(int(sleepTime))+"s" + " Media Sequence: " + str(self.currentMediaSequence))
sleepTime = sleepTime if sleepTime >= 0 else 1
time.sleep(sleepTime)
else:
print("Did not find a video stream")