Doctor.Who.2005.S00E148.The.Husbands.of.River.Song.1080p.BluRay.AV1-PTNX

DOCTOR WHO (2005) - Special Episode no. 148
"The Husbands of River Song"

This is the 2015 Christmas Special. It follows Season 9 and precedes Season 10.
This is the first of two specials that aired between these seasons:

1. The Husbands of River Song (this release)
2. The Return of Doctor Mysterio

It’s Christmas Day on a remote human colony and the
Doctor is hiding from Christmas Carols and Comedy
Antlers. But when a crashed spaceship calls upon the
Doctor for help, he finds himself recruited into River
Song’s squad and hurled into a fast and frantic chase
across the galaxy.

Total runtime: 56m 8s - Total size: 658.2 MiB

VIDEO:  AV1, 10 bit color
AUDIO:  English 5.1 Opus @ 192 kbps
SUBS:   English SRT (embedded)

The further adventures in time and space of the alien
adventurer known as the Doctor and their companions from
planet Earth.
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ENCODING PARAMS (AOMENC):
--cpu-used=4 --end-usage=q --tile-columns=1 --tile-rows=1
--bit-depth=10 --lag-in-frames=48 --threads=2
--enable-dist-wtd-comp=0 --enable-qm=1 --quant-b-adapt=3
--mv-cost-upd-freq=2 --enable-chroma-deltaq=1
--enable-fwd-kf=1

ENCODING PARAMS (AV1AN):
-p 2 --target_quality 94 --vmaf_plots --vmaf --probes 5
-a " -c:a libopus -b:a 192k -ac 6 " --min_q 15 --max_q 50
-xs 0

target_quality may be increased and/or min_q lowered for
individual episodes and/or segments of episodes if an
encode done with these parameters fails to meet quality
requirements.
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All Paarthurnax torrents are encoded in the AV1 video and
Opus audio codecs. This is a modern codec that offers the
best possible compression at any given quality level. Not
all media players support this format. If in doubt: VLC!

AV1-encoded files are usually around 30% smaller than
HEVC x265, and 50% smaller than AVC x264, at the same
quality.

The table above shows quality at mean, 75th, 25th and 1st
percentiles of frames, using Netflix's VMAF perceived
quality algorithm. Improvement above 93 is considered
imperceptible for film contents. All of our torrents
target a mean VMAF around 94 and 25th percentile no lower
than 91. This can be done while maintaining as small of a
file size as possible by splitting the video and encoding
the segments at a quality that is perfectly optimized for
each individual segment.
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