100 lines
4.0 KiB
Python
100 lines
4.0 KiB
Python
import sys
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import time
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import m3u8
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from Crypto.Cipher import AES
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# from fHDHR.exceptions import TunerError
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class Direct_M3U8_Stream():
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def __init__(self, fhdhr, stream_args, tuner):
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self.fhdhr = fhdhr
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self.stream_args = stream_args
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self.tuner = tuner
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self.chunksize = int(self.fhdhr.config.dict["direct_stream"]['chunksize'])
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def get(self):
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if not self.stream_args["duration"] == 0:
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self.stream_args["time_end"] = self.stream_args["duration"] + time.time()
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self.fhdhr.logger.info("Detected stream URL is m3u8: %s" % self.stream_args["true_content_type"])
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channelUri = self.stream_args["channelUri"]
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while True:
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self.fhdhr.logger.info("Opening m3u8 for reading %s" % channelUri)
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videoUrlM3u = m3u8.load(channelUri)
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if len(videoUrlM3u.playlists):
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self.fhdhr.logger.info("%s m3u8 varients found" % len(videoUrlM3u.playlists))
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channelUri = videoUrlM3u.playlists[0].absolute_uri
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else:
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break
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def generate():
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try:
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played_chunk_urls = []
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while self.tuner.tuner_lock.locked():
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playlist = m3u8.load(channelUri)
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segments = playlist.segments
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if len(played_chunk_urls):
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newsegments = 0
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for segment in segments:
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if segment.absolute_uri not in played_chunk_urls:
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newsegments += 1
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self.fhdhr.logger.info("Refreshing m3u8, Loaded %s new segments." % str(newsegments))
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else:
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self.fhdhr.logger.info("Loaded %s segments." % str(len(segments)))
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if playlist.keys != [None]:
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keys = [{"url": key.absolute_uri, "method": key.method, "iv": key.iv} for key in playlist.keys if key]
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else:
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keys = [None for i in range(0, len(segments))]
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for segment, key in zip(segments, keys):
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chunkurl = segment.absolute_uri
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if chunkurl and chunkurl not in played_chunk_urls:
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played_chunk_urls.append(chunkurl)
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if (not self.stream_args["duration"] == 0 and
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not time.time() < self.stream_args["time_end"]):
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self.fhdhr.logger.info("Requested Duration Expired.")
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self.tuner.close()
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chunk = self.fhdhr.web.session.get(chunkurl).content
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if not chunk:
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break
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# raise TunerError("807 - No Video Data")
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if key:
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if key["url"]:
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keyfile = self.fhdhr.web.session.get(key["url"]).content
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cryptor = AES.new(keyfile, AES.MODE_CBC, keyfile)
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self.fhdhr.logger.info("Decrypting Chunk #%s with key: %s" % (len(played_chunk_urls), key["url"]))
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chunk = cryptor.decrypt(chunk)
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chunk_size = int(sys.getsizeof(chunk))
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self.fhdhr.logger.info("Passing Through Chunk #%s with size %s: %s" % (len(played_chunk_urls), chunk_size, chunkurl))
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yield chunk
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self.tuner.add_downloaded_size(chunk_size)
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self.fhdhr.logger.info("Connection Closed: Tuner Lock Removed")
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except GeneratorExit:
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self.fhdhr.logger.info("Connection Closed.")
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except Exception as e:
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self.fhdhr.logger.info("Connection Closed: " + str(e))
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finally:
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self.tuner.close()
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# raise TunerError("806 - Tune Failed")
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return generate()
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