mirror of
https://github.com/spaam/svtplay-dl.git
synced 2024-11-24 04:05:39 +01:00
324 lines
12 KiB
Python
324 lines
12 KiB
Python
# ex:ts=4:sw=4:sts=4:et
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# -*- tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*-
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import binascii
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import copy
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import os
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import time
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from datetime import datetime
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from datetime import timedelta
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from cryptography.hazmat.backends import default_backend
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from cryptography.hazmat.primitives.ciphers import algorithms
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from cryptography.hazmat.primitives.ciphers import Cipher
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from cryptography.hazmat.primitives.ciphers import modes
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from svtplay_dl.error import ServiceError
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from svtplay_dl.error import UIException
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from svtplay_dl.fetcher import VideoRetriever
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from svtplay_dl.fetcher.m3u8 import M3U8
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from svtplay_dl.subtitle import subtitle_probe
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from svtplay_dl.utils.fetcher import filter_files
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from svtplay_dl.utils.http import get_full_url
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from svtplay_dl.utils.output import ETA
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from svtplay_dl.utils.output import formatname
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from svtplay_dl.utils.output import progress_stream
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from svtplay_dl.utils.output import progressbar
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class HLSException(UIException):
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def __init__(self, url, message):
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self.url = url
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super().__init__(message)
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class LiveHLSException(HLSException):
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def __init__(self, url):
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super().__init__(url, "This is a live HLS stream, and they are not supported.")
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def hlsparse(config, res, url, output, **kwargs):
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if not res:
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return
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if res.status_code > 400:
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yield ServiceError(f"Can't read HLS playlist. {res.status_code}")
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return
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yield from _hlsparse(config, res.text, url, output, cookies=res.cookies, **kwargs)
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def _hlsparse(config, text, url, output, **kwargs):
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m3u8 = M3U8(text)
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keycookie = kwargs.pop("keycookie", None)
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cookies = kwargs.pop("cookies", None)
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authorization = kwargs.pop("authorization", None)
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loutput = copy.copy(output)
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loutput["ext"] = "ts"
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channels = kwargs.pop("channels", None)
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codec = kwargs.pop("codec", "h264")
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media = {}
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subtitles = {}
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videos = {}
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segments = None
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if m3u8.master_playlist:
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for i in m3u8.master_playlist:
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audio_url = None
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vcodec = None
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chans = None
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audio_group = None
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language = ""
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resolution = ""
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if i["TAG"] == "EXT-X-MEDIA":
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if i["TYPE"] and i["TYPE"] != "SUBTITLES":
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if "URI" in i:
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if segments is None:
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segments = True
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if i["GROUP-ID"] not in media:
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media[i["GROUP-ID"]] = []
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if "CHANNELS" in i:
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if i["CHANNELS"] == "6":
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chans = "51"
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if "LANGUAGE" in i:
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language = i["LANGUAGE"]
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if "AUTOSELECT" in i and i["AUTOSELECT"].upper() == "YES":
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role = "main"
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else:
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role = "alt"
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media[i["GROUP-ID"]].append([i["URI"], chans, language, role])
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else:
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segments = False
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if i["TYPE"] == "SUBTITLES":
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if "URI" in i:
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caption = None
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if i["GROUP-ID"] not in subtitles:
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subtitles[i["GROUP-ID"]] = []
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if "LANGUAGE" in i:
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lang = i["LANGUAGE"]
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else:
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lang = "und"
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if "CHARACTERISTICS" in i:
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caption = True
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item = [i["URI"], lang, caption]
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if item not in subtitles[i["GROUP-ID"]]:
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subtitles[i["GROUP-ID"]].append(item)
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continue
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elif i["TAG"] == "EXT-X-STREAM-INF":
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if "AVERAGE-BANDWIDTH" in i:
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bit_rate = float(i["AVERAGE-BANDWIDTH"]) / 1000
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else:
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bit_rate = float(i["BANDWIDTH"]) / 1000
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if "RESOLUTION" in i:
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resolution = i["RESOLUTION"]
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if "CODECS" in i:
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if i["CODECS"][:3] == "hvc":
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vcodec = "hevc"
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if i["CODECS"][:3] == "avc":
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vcodec = "h264"
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if "AUDIO" in i:
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audio_group = i["AUDIO"]
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urls = get_full_url(i["URI"], url)
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videos[bit_rate] = [urls, resolution, vcodec, audio_group]
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else:
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continue # Needs to be changed to utilise other tags.
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for bit_rate in list(videos.keys()):
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urls, resolution, vcodec, audio_group = videos[bit_rate]
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if audio_group and media:
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for group in media[audio_group]:
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audio_url = get_full_url(group[0], url)
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chans = group[1] if audio_url else channels
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codec = vcodec if vcodec else codec
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yield HLS(
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copy.copy(config),
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urls,
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bit_rate,
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cookies=cookies,
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keycookie=keycookie,
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authorization=authorization,
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audio=audio_url,
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output=loutput,
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segments=bool(segments),
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channels=chans,
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codec=codec,
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resolution=resolution,
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language=group[2],
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role=group[3],
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**kwargs,
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)
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else:
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chans = channels
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codec = vcodec if vcodec else codec
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yield HLS(
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copy.copy(config),
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urls,
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bit_rate,
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cookies=cookies,
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keycookie=keycookie,
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authorization=authorization,
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audio=audio_url,
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output=loutput,
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segments=bool(segments),
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channels=chans,
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codec=codec,
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resolution=resolution,
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**kwargs,
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)
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if subtitles:
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for sub in list(subtitles.keys()):
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for n in subtitles[sub]:
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subfix = n[2]
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if len(subtitles[sub]) > 1:
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if subfix:
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subfix = f"{n[1]}-caption"
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yield from subtitle_probe(
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copy.copy(config), get_full_url(n[0], url), output=copy.copy(output), subfix=subfix, cookies=cookies, **kwargs
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)
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elif m3u8.media_segment:
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config.set("segments", False)
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yield HLS(
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copy.copy(config),
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url,
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0,
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cookies=cookies,
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keycookie=keycookie,
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authorization=authorization,
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output=loutput,
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segments=False,
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)
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else:
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yield ServiceError("Can't find HLS playlist in m3u8 file.")
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class HLS(VideoRetriever):
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@property
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def name(self):
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return "hls"
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def download(self):
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self.output_extention = "ts"
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if self.segments:
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if self.audio and not self.config.get("only_video"):
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# self._download(self.audio, file_name=(copy.copy(self.output), "audio.ts"))
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self._download(self.audio, True)
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if not self.audio or not self.config.get("only_audio"):
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self._download(self.url)
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else:
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# Ignore audio
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self.audio = None
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self._download(self.url)
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def _download(self, url, audio=False):
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cookies = self.kwargs.get("cookies", None)
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start_time = time.time()
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m3u8 = M3U8(self.http.request("get", url, cookies=cookies).text)
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key = None
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def random_iv():
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return os.urandom(16)
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if audio:
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self.output["ext"] = "audio.ts"
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else:
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self.output["ext"] = "ts"
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filename = formatname(self.output, self.config)
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file_d = open(filename, "wb")
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hls_time_stamp = self.kwargs.pop("hls_time_stamp", False)
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if self.kwargs.get("filter", False):
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m3u8 = filter_files(m3u8)
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decryptor = None
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size_media = len(m3u8.media_segment)
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eta = ETA(size_media)
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total_duration = 0
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duration = 0
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max_duration = 0
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for index, i in enumerate(m3u8.media_segment):
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if "EXTINF" in i and "duration" in i["EXTINF"]:
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duration = i["EXTINF"]["duration"]
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max_duration = max(max_duration, duration)
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total_duration += duration
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item = get_full_url(i["URI"], url)
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if not self.config.get("silent"):
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if self.config.get("live"):
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progressbar(size_media, index + 1, "".join(["DU: ", str(timedelta(seconds=int(total_duration)))]))
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else:
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eta.increment()
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progressbar(size_media, index + 1, "".join(["ETA: ", str(eta)]))
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headers = {}
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if "EXT-X-BYTERANGE" in i:
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headers["Range"] = f'bytes={i["EXT-X-BYTERANGE"]["o"]}-{i["EXT-X-BYTERANGE"]["o"] + i["EXT-X-BYTERANGE"]["n"] - 1}'
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data = self.http.request("get", item, cookies=cookies, headers=headers)
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if data.status_code == 404:
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break
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data = data.content
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if m3u8.encrypted:
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headers = {}
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if self.keycookie:
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keycookies = self.keycookie
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else:
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keycookies = cookies
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if self.authorization:
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headers["authorization"] = self.authorization
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# Update key/decryptor
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if "EXT-X-KEY" in i:
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keyurl = get_full_url(i["EXT-X-KEY"]["URI"], url)
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if keyurl and keyurl[:4] == "skd:":
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raise HLSException(keyurl, "Can't decrypt beacuse of DRM")
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key = self.http.request("get", keyurl, cookies=keycookies, headers=headers).content
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iv = binascii.unhexlify(i["EXT-X-KEY"]["IV"][2:].zfill(32)) if "IV" in i["EXT-X-KEY"] else random_iv()
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backend = default_backend()
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cipher = Cipher(algorithms.AES(key), modes.CBC(iv), backend=backend)
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decryptor = cipher.decryptor()
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# In some cases the playlist say its encrypted but the files is not.
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# This happen on svtplay 5.1ch stream where it started with ID3..
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# Adding the other ones is header for mpeg-ts files. third byte is 10 or 11..
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if data[:3] != b"ID3" and data[:3] != b"\x47\x40\x11" and data[:3] != b"\x47\x40\x10" and data[4:12] != b"ftypisom":
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if decryptor:
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data = decryptor.update(data)
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else:
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raise ValueError("No decryptor found for encrypted hls steam.")
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file_d.write(data)
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if self.config.get("capture_time") > 0 and total_duration >= self.config.get("capture_time") * 60:
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break
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if (size_media == (index + 1)) and self.config.get("live"):
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sleep_int = (start_time + max_duration * 2) - time.time()
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if sleep_int > 0:
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time.sleep(sleep_int)
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size_media_old = size_media
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while size_media_old == size_media:
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start_time = time.time()
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if hls_time_stamp:
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end_time_stamp = (datetime.utcnow() - timedelta(minutes=1, seconds=max_duration * 2)).replace(microsecond=0)
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start_time_stamp = end_time_stamp - timedelta(minutes=1)
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base_url = url.split(".m3u8")[0]
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url = f"{base_url}.m3u8?in={start_time_stamp.isoformat()}&out={end_time_stamp.isoformat()}?"
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new_m3u8 = M3U8(self.http.request("get", url, cookies=cookies).text)
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for n_m3u in new_m3u8.media_segment:
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if not any(d["URI"] == n_m3u["URI"] for d in m3u8.media_segment):
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m3u8.media_segment.append(n_m3u)
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size_media = len(m3u8.media_segment)
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if size_media_old == size_media:
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time.sleep(max_duration)
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file_d.close()
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if not self.config.get("silent"):
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progress_stream.write("\n")
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self.finished = True
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