def reload_playlist(self):
if self.closed:
return
self.reader.buffer.wait_free()
self.logger.debug("Reloading playlist")
res = self.session.http.get(self.stream.url,
exception=StreamError,
retries=self.playlist_reload_retries,
**self.reader.request_params)
try:
playlist = hls_playlist.load(res.text, res.url)
except ValueError as err:
raise StreamError(err)
if playlist.is_master:
raise StreamError("Attempted to play a variant playlist, use "
"'hlsvariant://{0}' instead".format(
self.stream.url))
if playlist.iframes_only:
raise StreamError(
"Streams containing I-frames only is not playable")
media_sequence = playlist.media_sequence or 0
sequences = [
Sequence(media_sequence + i, s)
for i, s in enumerate(playlist.segments)
]
if sequences:
self.process_sequences(playlist, sequences)
def reload_playlist(self):
if self.closed:
return
self.reader.buffer.wait_free()
log.debug("Reloading playlist")
res = self.session.http.get(self.stream.url,
exception=StreamError,
retries=self.playlist_reload_retries,
**self.reader.request_params)
try:
playlist = hls_playlist.load(res.text, res.url)
except ValueError as err:
raise StreamError(err)
if playlist.is_master:
raise StreamError("Attempted to play a variant playlist, use "
"'hls://{0}' instead".format(self.stream.url))
if playlist.iframes_only:
raise StreamError("Streams containing I-frames only is not playable")
media_sequence = playlist.media_sequence or 0
sequences = [Sequence(media_sequence + i, s)
for i, s in enumerate(playlist.segments)]
if sequences:
self.process_sequences(playlist, sequences)
def test_load(self):
with text("hls/test_1.m3u8") as m3u8_fh:
playlist = load(m3u8_fh.read(), "http://test.se/")
self.assertEqual(
playlist.media,
[
Media(uri='http://test.se/audio/stereo/en/128kbit.m3u8', type='AUDIO', group_id='stereo',
language='en', name='English', default=True, autoselect=True, forced=False,
characteristics=None),
Media(uri='http://test.se/audio/stereo/none/128kbit.m3u8', type='AUDIO', group_id='stereo',
language='dubbing', name='Dubbing', default=False, autoselect=True, forced=False,
characteristics=None),
Media(uri='http://test.se/audio/surround/en/320kbit.m3u8', type='AUDIO', group_id='surround',
language='en', name='English', default=True, autoselect=True, forced=False,
characteristics=None),
Media(uri='http://test.se/audio/stereo/none/128kbit.m3u8', type='AUDIO', group_id='surround',
language='dubbing', name='Dubbing', default=False, autoselect=True, forced=False,
characteristics=None),
Media(uri='http://test.se/subtitles_de.m3u8', type='SUBTITLES', group_id='subs', language='de',
name='Deutsch', default=False, autoselect=True, forced=False, characteristics=None),
Media(uri='http://test.se/subtitles_en.m3u8', type='SUBTITLES', group_id='subs', language='en',
name='English', default=True, autoselect=True, forced=False, characteristics=None),
Media(uri='http://test.se/subtitles_es.m3u8', type='SUBTITLES', group_id='subs', language='es',
name='Espanol', default=False, autoselect=True, forced=False, characteristics=None),
Media(uri='http://test.se/subtitles_fr.m3u8', type='SUBTITLES', group_id='subs', language='fr',
name='Français', default=False, autoselect=True, forced=False, characteristics=None)
]
)
self.assertEqual(
[p.stream_info for p in playlist.playlists],
[
StreamInfo(bandwidth=258157.0, program_id='1', codecs=['avc1.4d400d', 'mp4a.40.2'],
resolution=Resolution(width=422, height=180), audio='stereo', video=None,
subtitles='subs'),
StreamInfo(bandwidth=520929.0, program_id='1', codecs=['avc1.4d4015', 'mp4a.40.2'],
resolution=Resolution(width=638, height=272), audio='stereo', video=None,
subtitles='subs'),
StreamInfo(bandwidth=831270.0, program_id='1', codecs=['avc1.4d4015', 'mp4a.40.2'],
resolution=Resolution(width=638, height=272), audio='stereo', video=None,
subtitles='subs'),
StreamInfo(bandwidth=1144430.0, program_id='1', codecs=['avc1.4d401f', 'mp4a.40.2'],
resolution=Resolution(width=958, height=408), audio='surround', video=None,
subtitles='subs'),
StreamInfo(bandwidth=1558322.0, program_id='1', codecs=['avc1.4d401f', 'mp4a.40.2'],
resolution=Resolution(width=1277, height=554), audio='surround', video=None,
subtitles='subs'),
StreamInfo(bandwidth=4149264.0, program_id='1', codecs=['avc1.4d4028', 'mp4a.40.2'],
resolution=Resolution(width=1921, height=818), audio='surround', video=None,
subtitles='subs'),
StreamInfo(bandwidth=6214307.0, program_id='1', codecs=['avc1.4d4028', 'mp4a.40.2'],
resolution=Resolution(width=1921, height=818), audio='surround', video=None,
subtitles='subs'),
StreamInfo(bandwidth=10285391.0, program_id='1', codecs=['avc1.4d4033', 'mp4a.40.2'],
resolution=Resolution(width=4096, height=1744), audio='surround', video=None,
subtitles='subs')
]
)
def reload_playlist(self):
if self.closed:
return
self.reader.buffer.wait_free()
log.debug("Reloading playlist")
if self.stream.channel:
parsed = urlparse(self.stream.url)
if self.stream._first_netloc is None:
# save the first netloc
self.stream._first_netloc = parsed.netloc
# always use the first saved netloc
new_stream_url = parsed._replace(
netloc=self.stream._first_netloc).geturl()
else:
new_stream_url = self.stream.url
try:
res = self.session.http.get(new_stream_url,
exception=StreamError,
retries=self.playlist_reload_retries,
**self.reader.request_params)
except StreamError as err:
if (hasattr(self.stream, "watch_timeout") and any(
x in str(err)
for x in ("403 Client Error", "502 Server Error"))):
self.stream.watch_timeout = 0
self.playlist_reload_time = 0
log.debug(
f"Force reloading the channel playlist on error: {err}")
return
raise err
try:
playlist = hls_playlist.load(res.text, res.url)
except ValueError as err:
raise StreamError(err)
if playlist.is_master:
raise StreamError("Attempted to play a variant playlist, use "
"'hls://{0}' instead".format(self.stream.url))
if playlist.iframes_only:
raise StreamError(
"Streams containing I-frames only is not playable")
media_sequence = playlist.media_sequence or 0
sequences = [
Sequence(media_sequence + i, s)
for i, s in enumerate(playlist.segments)
]
if sequences:
self.process_sequences(playlist, sequences)
def reload_playlist(self):
if self.closed:
return
self.reader.buffer.wait_free()
log.debug("Reloading playlist")
if self.stream.channel:
parsed = urlparse(self.stream.url)
if self.stream._first_netloc is None:
# save the first netloc
self.stream._first_netloc = parsed.netloc
# always use the first saved netloc
new_stream_url = parsed._replace(netloc=self.stream._first_netloc).geturl()
else:
new_stream_url = self.stream.url
try:
res = self.session.http.get(
new_stream_url,
exception=StreamError,
retries=self.playlist_reload_retries,
**self.reader.request_params)
except StreamError as err:
if (hasattr(self.stream, "watch_timeout")
and any(x in str(err) for x in ("403 Client Error",
"502 Server Error"))):
self.stream.watch_timeout = 0
self.playlist_reload_time = 0
log.debug("Force reloading the channel playlist on error: {0}", err)
return
raise err
try:
playlist = hls_playlist.load(res.text, res.url)
except ValueError as err:
raise StreamError(err)
if playlist.is_master:
raise StreamError("Attempted to play a variant playlist, use "
"'hls://{0}' instead".format(self.stream.url))
if playlist.iframes_only:
raise StreamError("Streams containing I-frames only is not playable")
media_sequence = playlist.media_sequence or 0
sequences = [Sequence(media_sequence + i, s)
for i, s in enumerate(playlist.segments)]
if sequences:
self.process_sequences(playlist, sequences)
def test_load(self):
with text("hls/test_1.m3u8") as m3u8_fh:
playlist = load(m3u8_fh.read(), "http://test.se/")
self.assertEqual(playlist.media,
[Media(uri='http://test.se/audio/stereo/en/128kbit.m3u8', type='AUDIO', group_id='stereo', language='en',
name='English', default=True, autoselect=True, forced=False, characteristics=None),
Media(uri='http://test.se/audio/stereo/none/128kbit.m3u8', type='AUDIO', group_id='stereo',
language='dubbing', name='Dubbing', default=False, autoselect=True, forced=False,
characteristics=None),
Media(uri='http://test.se/audio/surround/en/320kbit.m3u8', type='AUDIO', group_id='surround', language='en',
name='English', default=True, autoselect=True, forced=False, characteristics=None),
Media(uri='http://test.se/audio/stereo/none/128kbit.m3u8', type='AUDIO', group_id='surround',
language='dubbing', name='Dubbing', default=False, autoselect=True, forced=False,
characteristics=None),
Media(uri='http://test.se/subtitles_de.m3u8', type='SUBTITLES', group_id='subs', language='de',
name='Deutsch', default=False, autoselect=True, forced=False, characteristics=None),
Media(uri='http://test.se/subtitles_en.m3u8', type='SUBTITLES', group_id='subs', language='en',
name='English', default=True, autoselect=True, forced=False, characteristics=None),
Media(uri='http://test.se/subtitles_es.m3u8', type='SUBTITLES', group_id='subs', language='es',
name='Espanol', default=False, autoselect=True, forced=False, characteristics=None),
Media(uri='http://test.se/subtitles_fr.m3u8', type='SUBTITLES', group_id='subs', language='fr',
name='Français', default=False, autoselect=True, forced=False,
characteristics=None)])
self.assertEqual([p.stream_info for p in playlist.playlists],
[StreamInfo(bandwidth=258157.0, program_id='1', codecs=['avc1.4d400d', 'mp4a.40.2'],
resolution=Resolution(width=422, height=180), audio='stereo', video=None,
subtitles='subs'),
StreamInfo(bandwidth=520929.0, program_id='1', codecs=['avc1.4d4015', 'mp4a.40.2'],
resolution=Resolution(width=638, height=272), audio='stereo', video=None,
subtitles='subs'),
StreamInfo(bandwidth=831270.0, program_id='1', codecs=['avc1.4d4015', 'mp4a.40.2'],
resolution=Resolution(width=638, height=272), audio='stereo', video=None,
subtitles='subs'),
StreamInfo(bandwidth=1144430.0, program_id='1', codecs=['avc1.4d401f', 'mp4a.40.2'],
resolution=Resolution(width=958, height=408), audio='surround', video=None,
subtitles='subs'),
StreamInfo(bandwidth=1558322.0, program_id='1', codecs=['avc1.4d401f', 'mp4a.40.2'],
resolution=Resolution(width=1277, height=554), audio='surround', video=None,
subtitles='subs'),
StreamInfo(bandwidth=4149264.0, program_id='1', codecs=['avc1.4d4028', 'mp4a.40.2'],
resolution=Resolution(width=1921, height=818), audio='surround', video=None,
subtitles='subs'),
StreamInfo(bandwidth=6214307.0, program_id='1', codecs=['avc1.4d4028', 'mp4a.40.2'],
resolution=Resolution(width=1921, height=818), audio='surround', video=None,
subtitles='subs'),
StreamInfo(bandwidth=10285391.0, program_id='1', codecs=['avc1.4d4033', 'mp4a.40.2'],
resolution=Resolution(width=4096, height=1744), audio='surround', video=None,
subtitles='subs')])
def _get_variant_playlist(cls, res):
return hls_playlist.load(res.text, base_uri=res.url)
def _reload_playlist(self, text, url):
return hls_playlist.load(text, url)
def test_parse_date(self):
with text("hls/test_date.m3u8") as m3u8_fh:
playlist = load(m3u8_fh.read(), "http://test.se/")
start_date = datetime(year=2000,
month=1,
day=1,
hour=0,
minute=0,
second=0,
microsecond=0,
tzinfo=tzinfo.UTC)
end_date = datetime(year=2000,
month=1,
day=1,
hour=0,
minute=1,
second=0,
microsecond=0,
tzinfo=tzinfo.UTC)
delta_15 = timedelta(seconds=15)
delta_30 = timedelta(seconds=30, milliseconds=500)
delta_60 = timedelta(seconds=60)
self.assertEqual(playlist.target_duration, 120)
self.assertEqual([daterange for daterange in playlist.dateranges], [
DateRange(id="start-invalid",
start_date=None,
classname=None,
end_date=None,
duration=None,
planned_duration=None,
end_on_next=False,
x={}),
DateRange(id="start-no-frac",
start_date=start_date,
classname=None,
end_date=None,
duration=None,
planned_duration=None,
end_on_next=False,
x={}),
DateRange(id="start-with-frac",
start_date=start_date,
classname=None,
end_date=None,
duration=None,
planned_duration=None,
end_on_next=False,
x={}),
DateRange(id="with-class",
start_date=start_date,
classname="bar",
end_date=None,
duration=None,
planned_duration=None,
end_on_next=False,
x={}),
DateRange(id="duration",
start_date=start_date,
duration=delta_30,
classname=None,
end_date=None,
planned_duration=None,
end_on_next=False,
x={}),
DateRange(id="planned-duration",
start_date=start_date,
planned_duration=delta_15,
classname=None,
end_date=None,
duration=None,
end_on_next=False,
x={}),
DateRange(id="duration-precedence",
start_date=start_date,
duration=delta_30,
planned_duration=delta_15,
classname=None,
end_date=None,
end_on_next=False,
x={}),
DateRange(id="end",
start_date=start_date,
end_date=end_date,
classname=None,
duration=None,
planned_duration=None,
end_on_next=False,
x={}),
DateRange(id="end-precedence",
start_date=start_date,
end_date=end_date,
duration=delta_30,
classname=None,
planned_duration=None,
end_on_next=False,
x={}),
DateRange(x={"X-CUSTOM": "value"},
id=None,
start_date=None,
end_date=None,
duration=None,
classname=None,
planned_duration=None,
end_on_next=False)
])
self.assertEqual([segment for segment in playlist.segments], [
Segment(uri="http://test.se/segment0-15.ts",
duration=15.0,
title="live",
date=start_date,
key=None,
discontinuity=False,
byterange=None,
map=None),
Segment(uri="http://test.se/segment15-30.5.ts",
duration=15.5,
title="live",
date=start_date + delta_15,
key=None,
discontinuity=False,
byterange=None,
map=None),
Segment(uri="http://test.se/segment30.5-60.ts",
duration=29.5,
title="live",
date=start_date + delta_30,
key=None,
discontinuity=False,
byterange=None,
map=None),
Segment(uri="http://test.se/segment60-.ts",
duration=60.0,
title="live",
date=start_date + delta_60,
key=None,
discontinuity=False,
byterange=None,
map=None)
])
self.assertEqual([
playlist.is_date_in_daterange(playlist.segments[0].date, daterange)
for daterange in playlist.dateranges
], [None, True, True, True, True, True, True, True, True, None])
self.assertEqual([
playlist.is_date_in_daterange(playlist.segments[1].date, daterange)
for daterange in playlist.dateranges
], [None, True, True, True, True, False, True, True, True, None])
self.assertEqual([
playlist.is_date_in_daterange(playlist.segments[2].date, daterange)
for daterange in playlist.dateranges
], [None, True, True, True, False, False, False, True, True, None])
self.assertEqual([
playlist.is_date_in_daterange(playlist.segments[3].date, daterange)
for daterange in playlist.dateranges
], [None, True, True, True, False, False, False, False, False, None])
def parse_variant_playlist(cls,
session_,
url,
name_key="name",
name_prefix="",
check_streams=False,
force_restart=False,
**request_params):
"""Attempts to parse a variant playlist and return its streams.
:param url: The URL of the variant playlist.
:param name_key: Prefer to use this key as stream name, valid keys are:
name, pixels, bitrate.
:param name_prefix: Add this prefix to the stream names.
:param force_restart: Start at the first segment even for a live stream
:param check_streams: Only allow streams that are accesible.
"""
logger = session_.logger.new_module("hls.parse_variant_playlist")
locale = session_.localization
# Backwards compatibility with "namekey" and "nameprefix" params.
name_key = request_params.pop("namekey", name_key)
name_prefix = request_params.pop("nameprefix", name_prefix)
res = session_.http.get(url, exception=IOError, **request_params)
try:
parser = hls_playlist.load(res.text, base_uri=res.url)
except ValueError as err:
raise IOError("Failed to parse playlist: {0}".format(err))
streams = {}
for playlist in filter(lambda p: not p.is_iframe, parser.playlists):
names = dict(name=None, pixels=None, bitrate=None)
fallback_audio = None
default_audio = None
preferred_audio = None
for media in playlist.media:
if media.type == "VIDEO" and media.name:
names["name"] = media.name
elif media.type == "AUDIO":
if not fallback_audio and media.default:
fallback_audio = media
# if the media is "audoselect" and it better matches the users preferences, use that
# instead of default
if not default_audio and (
media.autoselect
and locale.equivalent(language=media.language)):
default_audio = media
# select the first audio stream that matches the users explict language selection
if (not preferred_audio or media.default
) and locale.explicit and locale.equivalent(
language=media.language):
preferred_audio = media
if playlist.stream_info.resolution:
width, height = playlist.stream_info.resolution
names["pixels"] = "{0}p".format(height)
if playlist.stream_info.bandwidth:
bw = playlist.stream_info.bandwidth
if bw >= 1000:
names["bitrate"] = "{0}k".format(int(bw / 1000.0))
else:
names["bitrate"] = "{0}k".format(bw / 1000.0)
stream_name = (names.get(name_key) or names.get("name")
or names.get("pixels") or names.get("bitrate"))
if not stream_name:
continue
if stream_name in streams: # rename duplicate streams
stream_name = "{0}_alt".format(stream_name)
num_alts = len(
list(
filter(lambda n: n.startswith(stream_name),
streams.keys())))
# We shouldn't need more than 2 alt streams
if num_alts >= 2:
continue
elif num_alts > 0:
stream_name = "{0}{1}".format(stream_name, num_alts + 1)
if check_streams:
try:
session_.http.get(playlist.uri, **request_params)
except KeyboardInterrupt:
raise
except Exception:
continue
external_audio = preferred_audio or default_audio or fallback_audio
if external_audio and external_audio.uri and FFMPEGMuxer.is_usable(
session_):
logger.debug(
"Using external audio track for stream {0} (language={1}, name={2})"
.format(name_prefix + stream_name, external_audio.language,
external_audio.name or "N/A"))
stream = MuxedHLSStream(session_,
video=playlist.uri,
audio=external_audio
and external_audio.uri,
force_restart=force_restart,
**request_params)
else:
stream = HLSStream(session_,
playlist.uri,
force_restart=force_restart,
**request_params)
streams[name_prefix + stream_name] = stream
return streams
def parse_variant_playlist(cls,
session_,
url,
name_key="name",
name_prefix="",
check_streams=False,
force_restart=False,
name_fmt=None,
start_offset=0,
duration=None,
**request_params):
"""Attempts to parse a variant playlist and return its streams.
:param url: The URL of the variant playlist.
:param name_key: Prefer to use this key as stream name, valid keys are:
name, pixels, bitrate.
:param name_prefix: Add this prefix to the stream names.
:param check_streams: Only allow streams that are accessible.
:param force_restart: Start at the first segment even for a live stream
:param name_fmt: A format string for the name, allowed format keys are
name, pixels, bitrate.
"""
locale = session_.localization
# Backwards compatibility with "namekey" and "nameprefix" params.
name_key = request_params.pop("namekey", name_key)
name_prefix = request_params.pop("nameprefix", name_prefix)
audio_select = session_.options.get("hls-audio-select") or []
res = session_.http.get(url, exception=IOError, **request_params)
try:
parser = hls_playlist.load(res.text, base_uri=res.url)
except ValueError as err:
raise IOError("Failed to parse playlist: {0}".format(err))
streams = {}
for playlist in filter(lambda p: not p.is_iframe, parser.playlists):
names = dict(name=None, pixels=None, bitrate=None)
audio_streams = []
fallback_audio = []
default_audio = []
preferred_audio = []
for media in playlist.media:
if media.type == "VIDEO" and media.name:
names["name"] = media.name
elif media.type == "AUDIO":
audio_streams.append(media)
for media in audio_streams:
# Media without a uri is not relevant as external audio
if not media.uri:
continue
if not fallback_audio and media.default:
fallback_audio = [media]
# if the media is "audoselect" and it better matches the users preferences, use that
# instead of default
if not default_audio and (
media.autoselect
and locale.equivalent(language=media.language)):
default_audio = [media]
# select the first audio stream that matches the users explict language selection
if (('*' in audio_select or media.language in audio_select
or media.name in audio_select) or
((not preferred_audio or media.default) and locale.explicit
and locale.equivalent(language=media.language))):
preferred_audio.append(media)
# final fallback on the first audio stream listed
fallback_audio = fallback_audio or (len(audio_streams)
and audio_streams[0].uri
and [audio_streams[0]])
if playlist.stream_info.resolution:
width, height = playlist.stream_info.resolution
names["pixels"] = "{0}p".format(height)
if playlist.stream_info.bandwidth:
bw = playlist.stream_info.bandwidth
if bw >= 1000:
names["bitrate"] = "{0}k".format(int(bw / 1000.0))
else:
names["bitrate"] = "{0}k".format(bw / 1000.0)
if name_fmt:
stream_name = name_fmt.format(**names)
else:
stream_name = (names.get(name_key) or names.get("name")
or names.get("pixels") or names.get("bitrate"))
if not stream_name:
continue
if stream_name in streams: # rename duplicate streams
stream_name = "{0}_alt".format(stream_name)
num_alts = len(
list(
filter(lambda n: n.startswith(stream_name),
streams.keys())))
# We shouldn't need more than 2 alt streams
if num_alts >= 2:
continue
elif num_alts > 0:
stream_name = "{0}{1}".format(stream_name, num_alts + 1)
if check_streams:
try:
session_.http.get(playlist.uri, **request_params)
except KeyboardInterrupt:
raise
except Exception:
continue
external_audio = preferred_audio or default_audio or fallback_audio
if external_audio and FFMPEGMuxer.is_usable(session_):
external_audio_msg = ", ".join([
"(language={0}, name={1})".format(x.language,
(x.name or "N/A"))
for x in external_audio
])
log.debug("Using external audio tracks for stream {0} {1}",
name_prefix + stream_name, external_audio_msg)
stream = KTCityMuxedHLSStream(
session_,
video=playlist.uri,
audio=[x.uri for x in external_audio if x.uri],
force_restart=force_restart,
start_offset=start_offset,
duration=duration,
**request_params)
else:
stream = KTCityHLS(session_,
playlist.uri,
force_restart=force_restart,
start_offset=start_offset,
duration=duration,
**request_params)
streams[name_prefix + stream_name] = stream
return streams
def parse_variant_playlist(cls, session_, url, name_key="name",
name_prefix="", check_streams=False,
force_restart=False, name_fmt=None,
start_offset=0, duration=None,
**request_params):
"""Attempts to parse a variant playlist and return its streams.
:param url: The URL of the variant playlist.
:param name_key: Prefer to use this key as stream name, valid keys are:
name, pixels, bitrate.
:param name_prefix: Add this prefix to the stream names.
:param check_streams: Only allow streams that are accessible.
:param force_restart: Start at the first segment even for a live stream
:param name_fmt: A format string for the name, allowed format keys are
name, pixels, bitrate.
"""
locale = session_.localization
# Backwards compatibility with "namekey" and "nameprefix" params.
name_key = request_params.pop("namekey", name_key)
name_prefix = request_params.pop("nameprefix", name_prefix)
audio_select = session_.options.get("hls-audio-select") or []
res = session_.http.get(url, exception=IOError, **request_params)
try:
parser = hls_playlist.load(res.text, base_uri=res.url)
except ValueError as err:
raise IOError("Failed to parse playlist: {0}".format(err))
streams = {}
for playlist in filter(lambda p: not p.is_iframe, parser.playlists):
names = dict(name=None, pixels=None, bitrate=None)
audio_streams = []
fallback_audio = []
default_audio = []
preferred_audio = []
for media in playlist.media:
if media.type == "VIDEO" and media.name:
names["name"] = media.name
elif media.type == "AUDIO":
audio_streams.append(media)
for media in audio_streams:
# Media without a uri is not relevant as external audio
if not media.uri:
continue
if not fallback_audio and media.default:
fallback_audio = [media]
# if the media is "audoselect" and it better matches the users preferences, use that
# instead of default
if not default_audio and (media.autoselect and locale.equivalent(language=media.language)):
default_audio = [media]
# select the first audio stream that matches the users explict language selection
if (('*' in audio_select or media.language in audio_select or media.name in audio_select) or
((not preferred_audio or media.default) and locale.explicit and locale.equivalent(
language=media.language))):
preferred_audio.append(media)
# final fallback on the first audio stream listed
fallback_audio = fallback_audio or (len(audio_streams) and
audio_streams[0].uri and [audio_streams[0]])
if playlist.stream_info.resolution:
width, height = playlist.stream_info.resolution
names["pixels"] = "{0}p".format(height)
if playlist.stream_info.bandwidth:
bw = playlist.stream_info.bandwidth
if bw >= 1000:
names["bitrate"] = "{0}k".format(int(bw / 1000.0))
else:
names["bitrate"] = "{0}k".format(bw / 1000.0)
if name_fmt:
stream_name = name_fmt.format(**names)
else:
stream_name = (names.get(name_key) or names.get("name") or
names.get("pixels") or names.get("bitrate"))
if not stream_name:
continue
if stream_name in streams: # rename duplicate streams
stream_name = "{0}_alt".format(stream_name)
num_alts = len(list(filter(lambda n: n.startswith(stream_name), streams.keys())))
# We shouldn't need more than 2 alt streams
if num_alts >= 2:
continue
elif num_alts > 0:
stream_name = "{0}{1}".format(stream_name, num_alts + 1)
if check_streams:
try:
session_.http.get(playlist.uri, **request_params)
except KeyboardInterrupt:
raise
except Exception:
continue
external_audio = preferred_audio or default_audio or fallback_audio
if external_audio and FFMPEGMuxer.is_usable(session_):
external_audio_msg = ", ".join([
"(language={0}, name={1})".format(x.language, (x.name or "N/A"))
for x in external_audio
])
log.debug("Using external audio tracks for stream {0} {1}", name_prefix + stream_name,
external_audio_msg)
stream = MuxedHLSStream(session_,
video=playlist.uri,
audio=[x.uri for x in external_audio if x.uri],
force_restart=force_restart,
start_offset=start_offset,
duration=duration,
**request_params)
else:
stream = HLSStream(session_, playlist.uri, force_restart=force_restart,
start_offset=start_offset, duration=duration, **request_params)
streams[name_prefix + stream_name] = stream
return streams
