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#!/usr/bin/env python
# -*- coding: utf-8 -*-
"""
video_bit_rate and audio_bit_rate properties
"""
import re
from rebulk import Rebulk
from rebulk.rules import Rule, RemoveMatch, RenameMatch
from ..common import dash, seps
from ..common.pattern import is_disabled
from ..common.quantity import BitRate
from ..common.validators import seps_surround
def bit_rate(config): # pylint:disable=unused-argument
"""
Builder for rebulk object.
:param config: rule configuration
:type config: dict
:return: Created Rebulk object
:rtype: Rebulk
"""
rebulk = Rebulk(disabled=lambda context: (is_disabled(context, 'audio_bit_rate')
and is_disabled(context, 'video_bit_rate')))
rebulk = rebulk.regex_defaults(flags=re.IGNORECASE, abbreviations=[dash])
rebulk.defaults(name='audio_bit_rate', validator=seps_surround)
rebulk.regex(r'\d+-?[kmg]b(ps|its?)', r'\d+\.\d+-?[kmg]b(ps|its?)',
conflict_solver=(
lambda match, other: match
if other.name == 'audio_channels' and 'weak-audio_channels' not in other.tags
else other
),
formatter=BitRate.fromstring, tags=['release-group-prefix'])
rebulk.rules(BitRateTypeRule)
return rebulk
class BitRateTypeRule(Rule):
"""
Convert audio bit rate guess into video bit rate.
"""
consequence = [RenameMatch('video_bit_rate'), RemoveMatch]
def when(self, matches, context):
to_rename = []
to_remove = []
if is_disabled(context, 'audio_bit_rate'):
to_remove.extend(matches.named('audio_bit_rate'))
else:
video_bit_rate_disabled = is_disabled(context, 'video_bit_rate')
for match in matches.named('audio_bit_rate'):
previous = matches.previous(match, index=0,
predicate=lambda m: m.name in ('source', 'screen_size', 'video_codec'))
if previous and not matches.holes(previous.end, match.start, predicate=lambda m: m.value.strip(seps)):
after = matches.next(match, index=0, predicate=lambda m: m.name == 'audio_codec')
if after and not matches.holes(match.end, after.start, predicate=lambda m: m.value.strip(seps)):
bitrate = match.value
if bitrate.units == 'Kbps' or (bitrate.units == 'Mbps' and bitrate.magnitude < 10):
continue
if video_bit_rate_disabled:
to_remove.append(match)
else:
to_rename.append(match)
if to_rename or to_remove:
return to_rename, to_remove
return False
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