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126 lines
4.4 KiB
Python
126 lines
4.4 KiB
Python
import logging
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from operator import itemgetter
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from svtplay_dl.utils.http import HTTP
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from svtplay_dl import error
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# TODO: should be set as the default option in the argument parsing?
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DEFAULT_PROTOCOL_PRIO = ["dash", "hls", "hds", "http", "rtmp"]
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LIVE_PROTOCOL_PRIO = ["hls", "dash", "hds", "http", "rtmp"]
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def sort_quality(data):
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data = sorted(data, key=lambda x: (x.bitrate, x.name()), reverse=True)
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datas = []
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for i in data:
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datas.append([i.bitrate, i.name()])
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return datas
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def list_quality(videos):
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data = sort_quality(videos)
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logging.info("Quality\tMethod")
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for i in data:
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logging.info("%s\t%s", i[0], i[1].upper())
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def protocol_prio(streams, priolist):
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"""
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Given a list of VideoRetriever objects and a prioritized list of
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accepted protocols (as strings) (highest priority first), return
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a list of VideoRetriever objects that are accepted, and sorted
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by bitrate, and then protocol priority.
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"""
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# Map score's to the reverse of the list's index values
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proto_score = dict(zip(priolist, range(len(priolist), 0, -1)))
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logging.debug("Protocol priority scores (higher is better): %s", str(proto_score))
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# Build a tuple (bitrate, proto_score, stream), and use it
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# for sorting.
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prioritized = [(s.bitrate, proto_score[s.name()], s) for
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s in streams if s.name() in proto_score]
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return [x[2] for x in sorted(prioritized, key=itemgetter(0, 1), reverse=True)]
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def select_quality(config, streams):
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high = 0
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if isinstance(config.get("quality"), str):
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try:
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quality = int(config.get("quality").split("-")[0])
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if len(config.get("quality").split("-")) > 1:
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high = int(config.get("quality").split("-")[1])
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except ValueError:
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raise error.UIException("Requested quality is invalid. use a number or range lowerNumber-higherNumber")
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else:
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quality = config.get("quality")
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try:
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optq = int(quality)
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except ValueError:
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raise error.UIException("Requested quality needs to be a number")
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try:
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optf = int(config.get("flexibleq"))
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except ValueError:
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raise error.UIException("Flexible-quality needs to be a number")
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if optf == 0 and high:
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optf = (high - quality) / 2
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optq = quality + (high - quality) / 2
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# Extract protocol prio, in the form of "hls,hds,http,rtmp",
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# we want it as a list
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if config.get("stream_prio"):
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proto_prio = config.get("stream_prio").split(',')
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elif config.get("live") or streams[0].config.get("live"):
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proto_prio = LIVE_PROTOCOL_PRIO
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else:
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proto_prio = DEFAULT_PROTOCOL_PRIO
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# Filter away any unwanted protocols, and prioritize
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# based on --stream-priority.
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streams = protocol_prio(streams, proto_prio)
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if len(streams) == 0:
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raise error.NoRequestedProtocols(
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requested=proto_prio,
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found=list(set([s.name() for s in streams]))
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)
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# Build a dict indexed by bitrate, where each value
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# is the stream with the highest priority protocol.
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stream_hash = {}
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for s in streams:
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if s.bitrate not in stream_hash:
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stream_hash[s.bitrate] = s
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avail = sorted(stream_hash.keys(), reverse=True)
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# wanted_lim is a two element tuple defines lower/upper bounds
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# (inclusive). By default, we want only the best for you
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# (literally!).
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wanted_lim = (avail[0],) * 2
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if optq:
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wanted_lim = (optq - optf, optq + optf)
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# wanted is the filtered list of available streams, having
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# a bandwidth within the wanted_lim range.
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wanted = [a for a in avail if a >= wanted_lim[0] and a <= wanted_lim[1]]
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# If none remains, the bitrate filtering was too tight.
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if len(wanted) == 0:
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data = sort_quality(streams)
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quality = ", ".join("%s (%s)" % (str(x), str(y)) for x, y in data)
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raise error.UIException("Can't find that quality. Try one of: %s (or "
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"try --flexible-quality)" % quality)
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http = HTTP(config)
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# Test if the wanted stream is available. If not try with the second best and so on.
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for w in wanted:
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res = http.get(stream_hash[w].url, cookies=stream_hash[w].kwargs.get("cookies", None))
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if res is not None and res.status_code < 404:
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return stream_hash[w]
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raise error.UIException("Streams not available to download.")
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